<?xml version="1.0" encoding="UTF-8"?>


<!--  Irish GAAP primary terms label linkbase file for commercial and industrial reporting entities - working draft -->

<!-- (c) 2007 Business Reporting Ireland Limited.  All Rights Reserved. -->
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  <roleRef roleURI="http://www.xbrl.org/2005/role/restatedLabel" xlink:type="simple" xlink:href="../restated_label/restatedLabel.xsd#restatedLabel"/>
  <labelLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link">
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_AccrualsDeferredIncome" xlink:label="AccrualsDeferredIncome" xlink:title="AccrualsDeferredIncome"/>
    <label xlink:type="resource" xlink:label="label_AccrualsDeferredIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AccrualsDeferredIncome" xml:lang="en" id="label_AccrualsDeferredIncome">Accruals and deferred income</label>
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    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_AccrualsDeferredIncomeAfterOneYear" xlink:label="AccrualsDeferredIncomeAfterOneYear" xlink:title="AccrualsDeferredIncomeAfterOneYear"/>
    <label xlink:type="resource" xlink:label="label_AccrualsDeferredIncomeAfterOneYear" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AccrualsDeferredIncomeAfterOneYear" xml:lang="en" id="label_AccrualsDeferredIncomeAfterOneYear">Accruals and deferred income after one year</label>
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    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_AccrualsDeferredIncomeWithinOneYear" xlink:label="AccrualsDeferredIncomeWithinOneYear" xlink:title="AccrualsDeferredIncomeWithinOneYear"/>
    <label xlink:type="resource" xlink:label="label_AccrualsDeferredIncomeWithinOneYear" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AccrualsDeferredIncomeWithinOneYear" xml:lang="en" id="label_AccrualsDeferredIncomeWithinOneYear">Accruals and deferred income within one year</label>
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    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_AcquisitionSubsidiariesMinorityInterests" xlink:label="AcquisitionSubsidiariesMinorityInterests" xlink:title="AcquisitionSubsidiariesMinorityInterests"/>
    <label xlink:type="resource" xlink:label="label_AcquisitionSubsidiariesMinorityInterests" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AcquisitionSubsidiariesMinorityInterests" xml:lang="en" id="label_AcquisitionSubsidiariesMinorityInterests">Minority interests arising on acquisitions of subsidiary undertakings</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AcquisitionSubsidiariesMinorityInterests" xlink:to="label_AcquisitionSubsidiariesMinorityInterests" xlink:title="label: AcquisitionSubsidiariesMinorityInterests to label_AcquisitionSubsidiariesMinorityInterests"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_ActuarialGainLossRecognisedInPensionSchemes" xlink:label="ActuarialGainLossRecognisedInPensionSchemes" xlink:title="ActuarialGainLossRecognisedInPensionSchemes"/>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ActuarialGainLossRecognisedInPensionSchemes" xlink:to="label_ActuarialGainLossRecognisedInPensionSchemes" xlink:title="label: ActuarialGainLossRecognisedInPensionSchemes to label_ActuarialGainLossRecognisedInPensionSchemes"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_AdjustmentForHigherLowerTaxRatesOnOverseasEarnings" xlink:label="AdjustmentForHigherLowerTaxRatesOnOverseasEarnings" xlink:title="AdjustmentForHigherLowerTaxRatesOnOverseasEarnings"/>
    <label xlink:type="resource" xlink:label="label_AdjustmentForHigherLowerTaxRatesOnOverseasEarnings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AdjustmentForHigherLowerTaxRatesOnOverseasEarnings" xml:lang="en" id="label_AdjustmentForHigherLowerTaxRatesOnOverseasEarnings">Adjustment for higher (lower) tax rates on overseas earnings</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AdjustmentForHigherLowerTaxRatesOnOverseasEarnings" xlink:to="label_AdjustmentForHigherLowerTaxRatesOnOverseasEarnings" xlink:title="label: AdjustmentForHigherLowerTaxRatesOnOverseasEarnings to label_AdjustmentForHigherLowerTaxRatesOnOverseasEarnings"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DeferredTaxAdjustmentIncreaseDecreaseInRespectPreviousYears" xlink:label="DeferredTaxAdjustmentIncreaseDecreaseInRespectPreviousYears" xlink:title="DeferredTaxAdjustmentIncreaseDecreaseInRespectPreviousYears"/>
    <label xlink:type="resource" xlink:label="label_DeferredTaxAdjustmentIncreaseDecreaseInRespectPreviousYears" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DeferredTaxAdjustmentIncreaseDecreaseInRespectPreviousYears" xml:lang="en" id="label_DeferredTaxAdjustmentIncreaseDecreaseInRespectPreviousYears">Adjustment increase (decrease) in respect of previous years</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DeferredTaxAdjustmentIncreaseDecreaseInRespectPreviousYears" xlink:to="label_DeferredTaxAdjustmentIncreaseDecreaseInRespectPreviousYears" xlink:title="label: DeferredTaxAdjustmentIncreaseDecreaseInRespectPreviousYears to label_DeferredTaxAdjustmentIncreaseDecreaseInRespectPreviousYears"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_AdministrationSupportAverageNumberEmployees" xlink:label="AdministrationSupportAverageNumberEmployees" xlink:title="AdministrationSupportAverageNumberEmployees"/>
    <label xlink:type="resource" xlink:label="label_AdministrationSupportAverageNumberEmployees" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AdministrationSupportAverageNumberEmployees" xml:lang="en" id="label_AdministrationSupportAverageNumberEmployees">Administration and support</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AdministrationSupportAverageNumberEmployees" xlink:to="label_AdministrationSupportAverageNumberEmployees" xlink:title="label: AdministrationSupportAverageNumberEmployees to label_AdministrationSupportAverageNumberEmployees"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_AggregateDepreciationOnFixturesFittingsToolsEquipmentOnHistoricalCostBasis" xlink:label="AggregateDepreciationOnFixturesFittingsToolsEquipmentOnHistoricalCostBasis" xlink:title="AggregateDepreciationOnFixturesFittingsToolsEquipmentOnHistoricalCostBasis"/>
    <label xlink:type="resource" xlink:label="label_AggregateDepreciationOnFixturesFittingsToolsEquipmentOnHistoricalCostBasis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AggregateDepreciationOnFixturesFittingsToolsEquipmentOnHistoricalCostBasis" xml:lang="en" id="label_AggregateDepreciationOnFixturesFittingsToolsEquipmentOnHistoricalCostBasis">Aggregate depreciation on fixtures, fittings, tools and equipment, on historical cost basis</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AggregateDepreciationOnFixturesFittingsToolsEquipmentOnHistoricalCostBasis" xlink:to="label_AggregateDepreciationOnFixturesFittingsToolsEquipmentOnHistoricalCostBasis" xlink:title="label: AggregateDepreciationOnFixturesFittingsToolsEquipmentOnHistoricalCostBasis to label_AggregateDepreciationOnFixturesFittingsToolsEquipmentOnHistoricalCostBasis"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_AggregateDepreciationOnInvestmentPropertiesOnHistoricalCostBasis" xlink:label="AggregateDepreciationOnInvestmentPropertiesOnHistoricalCostBasis" xlink:title="AggregateDepreciationOnInvestmentPropertiesOnHistoricalCostBasis"/>
    <label xlink:type="resource" xlink:label="label_AggregateDepreciationOnInvestmentPropertiesOnHistoricalCostBasis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AggregateDepreciationOnInvestmentPropertiesOnHistoricalCostBasis" xml:lang="en" id="label_AggregateDepreciationOnInvestmentPropertiesOnHistoricalCostBasis">Aggregate depreciation on investment properties, on historical cost basis</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AggregateDepreciationOnInvestmentPropertiesOnHistoricalCostBasis" xlink:to="label_AggregateDepreciationOnInvestmentPropertiesOnHistoricalCostBasis" xlink:title="label: AggregateDepreciationOnInvestmentPropertiesOnHistoricalCostBasis to label_AggregateDepreciationOnInvestmentPropertiesOnHistoricalCostBasis"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_AggregateDepreciationOnLandBuildingsOnHistoricalCostBasis" xlink:label="AggregateDepreciationOnLandBuildingsOnHistoricalCostBasis" xlink:title="AggregateDepreciationOnLandBuildingsOnHistoricalCostBasis"/>
    <label xlink:type="resource" xlink:label="label_AggregateDepreciationOnLandBuildingsOnHistoricalCostBasis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AggregateDepreciationOnLandBuildingsOnHistoricalCostBasis" xml:lang="en" id="label_AggregateDepreciationOnLandBuildingsOnHistoricalCostBasis">Aggregate depreciation on land and buildings, on historical cost basis</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AggregateDepreciationOnLandBuildingsOnHistoricalCostBasis" xlink:to="label_AggregateDepreciationOnLandBuildingsOnHistoricalCostBasis" xlink:title="label: AggregateDepreciationOnLandBuildingsOnHistoricalCostBasis to label_AggregateDepreciationOnLandBuildingsOnHistoricalCostBasis"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DepreciationOnLeasedAssetsIncludedInFixturesFittingsToolsEquipment" xlink:label="DepreciationOnLeasedAssetsIncludedInFixturesFittingsToolsEquipment" xlink:title="DepreciationOnLeasedAssetsIncludedInFixturesFittingsToolsEquipment"/>
    <label xlink:type="resource" xlink:label="label_DepreciationOnLeasedAssetsIncludedInFixturesFittingsToolsEquipment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DepreciationOnLeasedAssetsIncludedInFixturesFittingsToolsEquipment" xml:lang="en" id="label_DepreciationOnLeasedAssetsIncludedInFixturesFittingsToolsEquipment">Depreciation charge for the period on leased assets included in fixtures, fittings, tools and equipment</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DepreciationOnLeasedAssetsIncludedInFixturesFittingsToolsEquipment" xlink:to="label_DepreciationOnLeasedAssetsIncludedInFixturesFittingsToolsEquipment" xlink:title="label: DepreciationOnLeasedAssetsIncludedInFixturesFittingsToolsEquipment to label_DepreciationOnLeasedAssetsIncludedInFixturesFittingsToolsEquipment"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DepreciationOnLeasedAssetsIncludedInPlantMachinery" xlink:label="DepreciationOnLeasedAssetsIncludedInPlantMachinery" xlink:title="DepreciationOnLeasedAssetsIncludedInPlantMachinery"/>
    <label xlink:type="resource" xlink:label="label_DepreciationOnLeasedAssetsIncludedInPlantMachinery" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DepreciationOnLeasedAssetsIncludedInPlantMachinery" xml:lang="en" id="label_DepreciationOnLeasedAssetsIncludedInPlantMachinery">Depreciation charge for the period on leased assets included in plant and machinery</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DepreciationOnLeasedAssetsIncludedInPlantMachinery" xlink:to="label_DepreciationOnLeasedAssetsIncludedInPlantMachinery" xlink:title="label: DepreciationOnLeasedAssetsIncludedInPlantMachinery to label_DepreciationOnLeasedAssetsIncludedInPlantMachinery"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DepreciationOnLeasedAssetsIncludedInTangibleFixedAssets" xlink:label="DepreciationOnLeasedAssetsIncludedInTangibleFixedAssets" xlink:title="DepreciationOnLeasedAssetsIncludedInTangibleFixedAssets"/>
    <label xlink:type="resource" xlink:label="label_DepreciationOnLeasedAssetsIncludedInTangibleFixedAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DepreciationOnLeasedAssetsIncludedInTangibleFixedAssets" xml:lang="en" id="label_DepreciationOnLeasedAssetsIncludedInTangibleFixedAssets">Depreciation charge for the period on leased assets included in tangible fixed assets</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DepreciationOnLeasedAssetsIncludedInTangibleFixedAssets" xlink:to="label_DepreciationOnLeasedAssetsIncludedInTangibleFixedAssets" xlink:title="label: DepreciationOnLeasedAssetsIncludedInTangibleFixedAssets to label_DepreciationOnLeasedAssetsIncludedInTangibleFixedAssets"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_AggregateDepreciationOnPlantMachineryOnHistoricalCostBasis" xlink:label="AggregateDepreciationOnPlantMachineryOnHistoricalCostBasis" xlink:title="AggregateDepreciationOnPlantMachineryOnHistoricalCostBasis"/>
    <label xlink:type="resource" xlink:label="label_AggregateDepreciationOnPlantMachineryOnHistoricalCostBasis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AggregateDepreciationOnPlantMachineryOnHistoricalCostBasis" xml:lang="en" id="label_AggregateDepreciationOnPlantMachineryOnHistoricalCostBasis">Aggregate depreciation on plant and machinery, on historical cost basis</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AggregateDepreciationOnPlantMachineryOnHistoricalCostBasis" xlink:to="label_AggregateDepreciationOnPlantMachineryOnHistoricalCostBasis" xlink:title="label: AggregateDepreciationOnPlantMachineryOnHistoricalCostBasis to label_AggregateDepreciationOnPlantMachineryOnHistoricalCostBasis"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_AggregateDepreciationOnTangibleFixedAssetsOnHistoricalCostBasis" xlink:label="AggregateDepreciationOnTangibleFixedAssetsOnHistoricalCostBasis" xlink:title="AggregateDepreciationOnTangibleFixedAssetsOnHistoricalCostBasis"/>
    <label xlink:type="resource" xlink:label="label_AggregateDepreciationOnTangibleFixedAssetsOnHistoricalCostBasis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AggregateDepreciationOnTangibleFixedAssetsOnHistoricalCostBasis" xml:lang="en" id="label_AggregateDepreciationOnTangibleFixedAssetsOnHistoricalCostBasis">Aggregate depreciation on tangible assets, on historical cost basis</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AggregateDepreciationOnTangibleFixedAssetsOnHistoricalCostBasis" xlink:to="label_AggregateDepreciationOnTangibleFixedAssetsOnHistoricalCostBasis" xlink:title="label: AggregateDepreciationOnTangibleFixedAssetsOnHistoricalCostBasis to label_AggregateDepreciationOnTangibleFixedAssetsOnHistoricalCostBasis"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_AmortisationImpairmentConcessionsPatentsLicencesTradeMarksSimilar" xlink:label="AmortisationImpairmentConcessionsPatentsLicencesTradeMarksSimilar" xlink:title="AmortisationImpairmentConcessionsPatentsLicencesTradeMarksSimilar"/>
    <label xlink:type="resource" xlink:label="label_AmortisationImpairmentConcessionsPatentsLicencesTradeMarksSimilar" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AmortisationImpairmentConcessionsPatentsLicencesTradeMarksSimilar" xml:lang="en" id="label_AmortisationImpairmentConcessionsPatentsLicencesTradeMarksSimilar">Amortisation and impairment, concessions, patents, licences, trade marks and similar</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmortisationImpairmentConcessionsPatentsLicencesTradeMarksSimilar" xlink:to="label_AmortisationImpairmentConcessionsPatentsLicencesTradeMarksSimilar" xlink:title="label: AmortisationImpairmentConcessionsPatentsLicencesTradeMarksSimilar to label_AmortisationImpairmentConcessionsPatentsLicencesTradeMarksSimilar"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_AmortisationImpairmentDevelopmentCosts" xlink:label="AmortisationImpairmentDevelopmentCosts" xlink:title="AmortisationImpairmentDevelopmentCosts"/>
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    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_AmortisationImpairmentGoodwill" xlink:label="AmortisationImpairmentGoodwill" xlink:title="AmortisationImpairmentGoodwill"/>
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    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_AmortisationImpairmentIntangibleFixedAssets" xlink:label="AmortisationImpairmentIntangibleFixedAssets" xlink:title="AmortisationImpairmentIntangibleFixedAssets"/>
    <label xlink:type="resource" xlink:label="label_AmortisationImpairmentIntangibleFixedAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AmortisationImpairmentIntangibleFixedAssets" xml:lang="en" id="label_AmortisationImpairmentIntangibleFixedAssets">Amortisation and impairment, intangible fixed assets</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmortisationImpairmentIntangibleFixedAssets" xlink:to="label_AmortisationImpairmentIntangibleFixedAssets" xlink:title="label: AmortisationImpairmentIntangibleFixedAssets to label_AmortisationImpairmentIntangibleFixedAssets"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_AmortisationImpairmentNegativeGoodwill" xlink:label="AmortisationImpairmentNegativeGoodwill" xlink:title="AmortisationImpairmentNegativeGoodwill"/>
    <label xlink:type="resource" xlink:label="label_AmortisationImpairmentNegativeGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AmortisationImpairmentNegativeGoodwill" xml:lang="en" id="label_AmortisationImpairmentNegativeGoodwill">Amortisation and impairment, negative goodwill</label>
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    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_AmortisationImpairmentNetGoodwill" xlink:label="AmortisationImpairmentNetGoodwill" xlink:title="AmortisationImpairmentNetGoodwill"/>
    <label xlink:type="resource" xlink:label="label_AmortisationImpairmentNetGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AmortisationImpairmentNetGoodwill" xml:lang="en" id="label_AmortisationImpairmentNetGoodwill">Amortisation and impairment, goodwill</label>
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    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_AmortisationImpairmentOtherIntangibleFixedAssets" xlink:label="AmortisationImpairmentOtherIntangibleFixedAssets" xlink:title="AmortisationImpairmentOtherIntangibleFixedAssets"/>
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    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_AmountByWhichTaxOnProfitOnOrdinaryActivitiesLowerHigherThanTaxCalculatedStandardIERate" xlink:label="AmountByWhichTaxOnProfitOnOrdinaryActivitiesLowerHigherThanTaxCalculatedStandardIERate" xlink:title="AmountByWhichTaxOnProfitOnOrdinaryActivitiesLowerHigherThanTaxCalculatedStandardIERate"/>
    <label xlink:type="resource" xlink:label="label_AmountByWhichTaxOnProfitOnOrdinaryActivitiesLowerHigherThanTaxCalculatedStandardIERate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AmountByWhichTaxOnProfitOnOrdinaryActivitiesLowerHigherThanTaxCalculatedStandardIERate" xml:lang="en" id="label_AmountByWhichTaxOnProfitOnOrdinaryActivitiesLowerHigherThanTaxCalculatedStandardIERate">Amount by which tax on profit on ordinary activities is lower (higher) than tax calculated at standard Irish rate</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmountByWhichTaxOnProfitOnOrdinaryActivitiesLowerHigherThanTaxCalculatedStandardIERate" xlink:to="label_AmountByWhichTaxOnProfitOnOrdinaryActivitiesLowerHigherThanTaxCalculatedStandardIERate" xlink:title="label: AmountByWhichTaxOnProfitOnOrdinaryActivitiesLowerHigherThanTaxCalculatedStandardIERate to label_AmountByWhichTaxOnProfitOnOrdinaryActivitiesLowerHigherThanTaxCalculatedStandardIERate"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_ExceptionalItemTotal" xlink:label="ExceptionalItemTotal" xlink:title="ExceptionalItemTotal"/>
    <label xlink:type="resource" xlink:label="label_ExceptionalItemTotal" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ExceptionalItemTotal" xml:lang="en" id="label_ExceptionalItemTotal">Exceptional item gain (loss)</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ExceptionalItemTotal" xlink:to="label_ExceptionalItemTotal" xlink:title="label: ExceptionalItemTotal to label_ExceptionalItemTotal"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_AmountsOwedToParticipatingInterestsAfterOneYear" xlink:label="AmountsOwedToParticipatingInterestsAfterOneYear" xlink:title="AmountsOwedToParticipatingInterestsAfterOneYear"/>
    <label xlink:type="resource" xlink:label="label_AmountsOwedToParticipatingInterestsAfterOneYear" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AmountsOwedToParticipatingInterestsAfterOneYear" xml:lang="en" id="label_AmountsOwedToParticipatingInterestsAfterOneYear">Amounts owed to participating interests after one year</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmountsOwedToParticipatingInterestsAfterOneYear" xlink:to="label_AmountsOwedToParticipatingInterestsAfterOneYear" xlink:title="label: AmountsOwedToParticipatingInterestsAfterOneYear to label_AmountsOwedToParticipatingInterestsAfterOneYear"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_AmountsOwedToParticipatingInterestsWithinOneYear" xlink:label="AmountsOwedToParticipatingInterestsWithinOneYear" xlink:title="AmountsOwedToParticipatingInterestsWithinOneYear"/>
    <label xlink:type="resource" xlink:label="label_AmountsOwedToParticipatingInterestsWithinOneYear" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AmountsOwedToParticipatingInterestsWithinOneYear" xml:lang="en" id="label_AmountsOwedToParticipatingInterestsWithinOneYear">Amounts owed to participating interests within one year</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmountsOwedToParticipatingInterestsWithinOneYear" xlink:to="label_AmountsOwedToParticipatingInterestsWithinOneYear" xlink:title="label: AmountsOwedToParticipatingInterestsWithinOneYear to label_AmountsOwedToParticipatingInterestsWithinOneYear"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_AmountsRecoverableOnContractsAfterOneYear" xlink:label="AmountsRecoverableOnContractsAfterOneYear" xlink:title="AmountsRecoverableOnContractsAfterOneYear"/>
    <label xlink:type="resource" xlink:label="label_AmountsRecoverableOnContractsAfterOneYear" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AmountsRecoverableOnContractsAfterOneYear" xml:lang="en" id="label_AmountsRecoverableOnContractsAfterOneYear">Amounts recoverable on contracts after one year</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmountsRecoverableOnContractsAfterOneYear" xlink:to="label_AmountsRecoverableOnContractsAfterOneYear" xlink:title="label: AmountsRecoverableOnContractsAfterOneYear to label_AmountsRecoverableOnContractsAfterOneYear"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_AmountsRecoverableOnContractsWithinOneYear" xlink:label="AmountsRecoverableOnContractsWithinOneYear" xlink:title="AmountsRecoverableOnContractsWithinOneYear"/>
    <label xlink:type="resource" xlink:label="label_AmountsRecoverableOnContractsWithinOneYear" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AmountsRecoverableOnContractsWithinOneYear" xml:lang="en" id="label_AmountsRecoverableOnContractsWithinOneYear">Amounts recoverable on contracts within one year</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmountsRecoverableOnContractsWithinOneYear" xlink:to="label_AmountsRecoverableOnContractsWithinOneYear" xlink:title="label: AmountsRecoverableOnContractsWithinOneYear to label_AmountsRecoverableOnContractsWithinOneYear"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_AuditFees" xlink:label="AuditFees" xlink:title="AuditFees"/>
    <label xlink:type="resource" xlink:label="label_AuditFees" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AuditFees" xml:lang="en" id="label_AuditFees">Audit work fees</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AuditFees" xlink:to="label_AuditFees" xlink:title="label: AuditFees to label_AuditFees"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_AverageNumberEmployeesByDepartment" xlink:label="AverageNumberEmployeesByDepartment" xlink:title="AverageNumberEmployeesByDepartment"/>
    <label xlink:type="resource" xlink:label="label_AverageNumberEmployeesByDepartment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AverageNumberEmployeesByDepartment" xml:lang="en" id="label_AverageNumberEmployeesByDepartment">Average number of employees</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AverageNumberEmployeesByDepartment" xlink:to="label_AverageNumberEmployeesByDepartment" xlink:title="label: AverageNumberEmployeesByDepartment to label_AverageNumberEmployeesByDepartment"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_BalanceSheet" xlink:label="BalanceSheet" xlink:title="BalanceSheet"/>
    <label xlink:type="resource" xlink:label="label_BalanceSheet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_BalanceSheet" xml:lang="en" id="label_BalanceSheet">Balance sheet</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="BalanceSheet" xlink:to="label_BalanceSheet" xlink:title="label: BalanceSheet to label_BalanceSheet"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_BankLoansOverdraftsAfterOneYear" xlink:label="BankLoansOverdraftsAfterOneYear" xlink:title="BankLoansOverdraftsAfterOneYear"/>
    <label xlink:type="resource" xlink:label="label_BankLoansOverdraftsAfterOneYear" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_BankLoansOverdraftsAfterOneYear" xml:lang="en" id="label_BankLoansOverdraftsAfterOneYear">Bank loans after one year</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="BankLoansOverdraftsAfterOneYear" xlink:to="label_BankLoansOverdraftsAfterOneYear" xlink:title="label: BankLoansOverdraftsAfterOneYear to label_BankLoansOverdraftsAfterOneYear"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_BankLoansOverdraftsWithinOneYear" xlink:label="BankLoansOverdraftsWithinOneYear" xlink:title="BankLoansOverdraftsWithinOneYear"/>
    <label xlink:type="resource" xlink:label="label_BankLoansOverdraftsWithinOneYear" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_BankLoansOverdraftsWithinOneYear" xml:lang="en" id="label_BankLoansOverdraftsWithinOneYear">Bank loans and overdrafts within one year</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="BankLoansOverdraftsWithinOneYear" xlink:to="label_BankLoansOverdraftsWithinOneYear" xlink:title="label: BankLoansOverdraftsWithinOneYear to label_BankLoansOverdraftsWithinOneYear"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_BankOverdrafts" xlink:label="BankOverdrafts" xlink:title="BankOverdrafts"/>
    <label xlink:type="resource" xlink:label="label_BankOverdrafts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_BankOverdrafts" xml:lang="en" id="label_BankOverdrafts">Bank overdrafts</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="BankOverdrafts" xlink:to="label_BankOverdrafts" xlink:title="label: BankOverdrafts to label_BankOverdrafts"/>
    <label xlink:type="resource" xlink:label="label_BankOverdrafts_2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_BankOverdrafts" xml:lang="en" id="label_BankOverdrafts_2">Bank overdrafts, end of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="BankOverdrafts" xlink:to="label_BankOverdrafts_2" xlink:title="label: BankOverdrafts to label_BankOverdrafts"/>
    <label xlink:type="resource" xlink:label="label_BankOverdrafts_3" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="label_BankOverdrafts" xml:lang="en" id="label_BankOverdrafts_3">Bank overdrafts, beginning of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="BankOverdrafts" xlink:to="label_BankOverdrafts_3" xlink:title="label: BankOverdrafts to label_BankOverdrafts"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_BillsExchangeAfterOneYear" xlink:label="BillsExchangeAfterOneYear" xlink:title="BillsExchangeAfterOneYear"/>
    <label xlink:type="resource" xlink:label="label_BillsExchangeAfterOneYear" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_BillsExchangeAfterOneYear" xml:lang="en" id="label_BillsExchangeAfterOneYear">Bills of exchange after one year</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="BillsExchangeAfterOneYear" xlink:to="label_BillsExchangeAfterOneYear" xlink:title="label: BillsExchangeAfterOneYear to label_BillsExchangeAfterOneYear"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_BillsExchangeWithinOneYear" xlink:label="BillsExchangeWithinOneYear" xlink:title="BillsExchangeWithinOneYear"/>
    <label xlink:type="resource" xlink:label="label_BillsExchangeWithinOneYear" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_BillsExchangeWithinOneYear" xml:lang="en" id="label_BillsExchangeWithinOneYear">Bills of exchange within one year</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="BillsExchangeWithinOneYear" xlink:to="label_BillsExchangeWithinOneYear" xlink:title="label: BillsExchangeWithinOneYear to label_BillsExchangeWithinOneYear"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CalledUpShareCapital" xlink:label="CalledUpShareCapital" xlink:title="CalledUpShareCapital"/>
    <label xlink:type="resource" xlink:label="label_CalledUpShareCapital" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CalledUpShareCapital" xml:lang="en" id="label_CalledUpShareCapital">Called up share capital</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CalledUpShareCapital" xlink:to="label_CalledUpShareCapital" xlink:title="label: CalledUpShareCapital to label_CalledUpShareCapital"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_ShareCapitalAnalysis" xlink:label="ShareCapitalAnalysis" xlink:title="ShareCapitalAnalysis"/>
    <label xlink:type="resource" xlink:label="label_ShareCapitalAnalysis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ShareCapitalAnalysis" xml:lang="en" id="label_ShareCapitalAnalysis">Share capital</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareCapitalAnalysis" xlink:to="label_ShareCapitalAnalysis" xlink:title="label: ShareCapitalAnalysis to label_ShareCapitalAnalysis"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_AuthorisedShareCapital" xlink:label="AuthorisedShareCapital" xlink:title="AuthorisedShareCapital"/>
    <label xlink:type="resource" xlink:label="label_AuthorisedShareCapital" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AuthorisedShareCapital" xml:lang="en" id="label_AuthorisedShareCapital">Authorised</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AuthorisedShareCapital" xlink:to="label_AuthorisedShareCapital" xlink:title="label: AuthorisedShareCapital to label_AuthorisedShareCapital"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CapitalAllowancesInExcessDepreciation" xlink:label="CapitalAllowancesInExcessDepreciation" xlink:title="CapitalAllowancesInExcessDepreciation"/>
    <label xlink:type="resource" xlink:label="label_CapitalAllowancesInExcessDepreciation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CapitalAllowancesInExcessDepreciation" xml:lang="en" id="label_CapitalAllowancesInExcessDepreciation">Capital allowances in excess of depreciation</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CapitalAllowancesInExcessDepreciation" xlink:to="label_CapitalAllowancesInExcessDepreciation" xlink:title="label: CapitalAllowancesInExcessDepreciation to label_CapitalAllowancesInExcessDepreciation"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CapitalCommitmentsAnalysis" xlink:label="CapitalCommitmentsAnalysis" xlink:title="CapitalCommitmentsAnalysis"/>
    <label xlink:type="resource" xlink:label="label_CapitalCommitmentsAnalysis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CapitalCommitmentsAnalysis" xml:lang="en" id="label_CapitalCommitmentsAnalysis">Capital commitments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CapitalCommitmentsAnalysis" xlink:to="label_CapitalCommitmentsAnalysis" xlink:title="label: CapitalCommitmentsAnalysis to label_CapitalCommitmentsAnalysis"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CapitalCommitmentsTotalContractedButNotProvidedFor" xlink:label="CapitalCommitmentsTotalContractedButNotProvidedFor" xlink:title="CapitalCommitmentsTotalContractedButNotProvidedFor"/>
    <label xlink:type="resource" xlink:label="label_CapitalCommitmentsTotalContractedButNotProvidedFor" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CapitalCommitmentsTotalContractedButNotProvidedFor" xml:lang="en" id="label_CapitalCommitmentsTotalContractedButNotProvidedFor">Total capital commitments contracted for</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CapitalCommitmentsTotalContractedButNotProvidedFor" xlink:to="label_CapitalCommitmentsTotalContractedButNotProvidedFor" xlink:title="label: CapitalCommitmentsTotalContractedButNotProvidedFor to label_CapitalCommitmentsTotalContractedButNotProvidedFor"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CapitalElementFinanceLeaseHirePurchasePayments" xlink:label="CapitalElementFinanceLeaseHirePurchasePayments" xlink:title="CapitalElementFinanceLeaseHirePurchasePayments"/>
    <label xlink:type="resource" xlink:label="label_CapitalElementFinanceLeaseHirePurchasePayments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CapitalElementFinanceLeaseHirePurchasePayments" xml:lang="en" id="label_CapitalElementFinanceLeaseHirePurchasePayments">Capital element of finance leases and hire purchase contracts</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CapitalElementFinanceLeaseHirePurchasePayments" xlink:to="label_CapitalElementFinanceLeaseHirePurchasePayments" xlink:title="label: CapitalElementFinanceLeaseHirePurchasePayments to label_CapitalElementFinanceLeaseHirePurchasePayments"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CapitalReserves" xlink:label="CapitalReserves" xlink:title="CapitalReserves"/>
    <label xlink:type="resource" xlink:label="label_CapitalReserves" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CapitalReserves" xml:lang="en" id="label_CapitalReserves">Capital and reserves</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CapitalReserves" xlink:to="label_CapitalReserves" xlink:title="label: CapitalReserves to label_CapitalReserves"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CapitilsedFinanceCostsIncludedInTangibleFixedAssets" xlink:label="CapitilsedFinanceCostsIncludedInTangibleFixedAssets" xlink:title="CapitilsedFinanceCostsIncludedInTangibleFixedAssets"/>
    <label xlink:type="resource" xlink:label="label_CapitilsedFinanceCostsIncludedInTangibleFixedAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CapitilsedFinanceCostsIncludedInTangibleFixedAssets" xml:lang="en" id="label_CapitilsedFinanceCostsIncludedInTangibleFixedAssets">Capitalised finance costs included in tangible fixed assets</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CapitilsedFinanceCostsIncludedInTangibleFixedAssets" xlink:to="label_CapitilsedFinanceCostsIncludedInTangibleFixedAssets" xlink:title="label: CapitilsedFinanceCostsIncludedInTangibleFixedAssets to label_CapitilsedFinanceCostsIncludedInTangibleFixedAssets"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CashBankInHand" xlink:label="CashBankInHand" xlink:title="CashBankInHand"/>
    <label xlink:type="resource" xlink:label="label_CashBankInHand" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CashBankInHand" xml:lang="en" id="label_CashBankInHand">Cash at bank and in hand</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CashBankInHand" xlink:to="label_CashBankInHand" xlink:title="label: CashBankInHand to label_CashBankInHand"/>
    <label xlink:type="resource" xlink:label="label_CashBankInHand_2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_CashBankInHand" xml:lang="en" id="label_CashBankInHand_2">Cash at bank and in hand, end of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CashBankInHand" xlink:to="label_CashBankInHand_2" xlink:title="label: CashBankInHand to label_CashBankInHand"/>
    <label xlink:type="resource" xlink:label="label_CashBankInHand_3" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="label_CashBankInHand" xml:lang="en" id="label_CashBankInHand_3">Cash at bank and in hand, beginning of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CashBankInHand" xlink:to="label_CashBankInHand_3" xlink:title="label: CashBankInHand to label_CashBankInHand"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_EffectsExchangeDifferencesOnCashInflowOutflow" xlink:label="EffectsExchangeDifferencesOnCashInflowOutflow" xlink:title="EffectsExchangeDifferencesOnCashInflowOutflow"/>
    <label xlink:type="resource" xlink:label="label_EffectsExchangeDifferencesOnCashInflowOutflow" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_EffectsExchangeDifferencesOnCashInflowOutflow" xml:lang="en" id="label_EffectsExchangeDifferencesOnCashInflowOutflow">Effects of exchange differences on cash inflow (outflow)</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EffectsExchangeDifferencesOnCashInflowOutflow" xlink:to="label_EffectsExchangeDifferencesOnCashInflowOutflow" xlink:title="label: EffectsExchangeDifferencesOnCashInflowOutflow to label_EffectsExchangeDifferencesOnCashInflowOutflow"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CashFlowStatement" xlink:label="CashFlowStatement" xlink:title="CashFlowStatement"/>
    <label xlink:type="resource" xlink:label="label_CashFlowStatement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CashFlowStatement" xml:lang="en" id="label_CashFlowStatement">Cash flow statement</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CashFlowStatement" xlink:to="label_CashFlowStatement" xlink:title="label: CashFlowStatement to label_CashFlowStatement"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CashMovementAnalysis" xlink:label="CashMovementAnalysis" xlink:title="CashMovementAnalysis"/>
    <label xlink:type="resource" xlink:label="label_CashMovementAnalysis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CashMovementAnalysis" xml:lang="en" id="label_CashMovementAnalysis">Cash</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CashMovementAnalysis" xlink:to="label_CashMovementAnalysis" xlink:title="label: CashMovementAnalysis to label_CashMovementAnalysis"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CertificatesDepositIE" xlink:label="CertificatesDepositIE" xlink:title="CertificatesDepositIE"/>
    <label xlink:type="resource" xlink:label="label_CertificatesDepositIE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CertificatesDepositIE" xml:lang="en" id="label_CertificatesDepositIE">Certificates of deposit, Irish</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CertificatesDepositIE" xlink:to="label_CertificatesDepositIE" xlink:title="label: CertificatesDepositIE to label_CertificatesDepositIE"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CertificatesDepositOverseas" xlink:label="CertificatesDepositOverseas" xlink:title="CertificatesDepositOverseas"/>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostOrValuationFixturesFittingsToolsEquipment" xlink:to="label_CostOrValuationFixturesFittingsToolsEquipment" xlink:title="label: CostOrValuationFixturesFittingsToolsEquipment to label_CostOrValuationFixturesFittingsToolsEquipment"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CostOrValuationGoodwill" xlink:label="CostOrValuationGoodwill" xlink:title="CostOrValuationGoodwill"/>
    <label xlink:type="resource" xlink:label="label_CostOrValuationGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CostOrValuationGoodwill" xml:lang="en" id="label_CostOrValuationGoodwill">At cost or valuation, positive goodwill</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostOrValuationGoodwill" xlink:to="label_CostOrValuationGoodwill" xlink:title="label: CostOrValuationGoodwill to label_CostOrValuationGoodwill"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CostOrValuationIntangibleFixedAssets" xlink:label="CostOrValuationIntangibleFixedAssets" xlink:title="CostOrValuationIntangibleFixedAssets"/>
    <label xlink:type="resource" xlink:label="label_CostOrValuationIntangibleFixedAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CostOrValuationIntangibleFixedAssets" xml:lang="en" id="label_CostOrValuationIntangibleFixedAssets">At cost or valuation, intangible fixed assets</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostOrValuationIntangibleFixedAssets" xlink:to="label_CostOrValuationIntangibleFixedAssets" xlink:title="label: CostOrValuationIntangibleFixedAssets to label_CostOrValuationIntangibleFixedAssets"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CostOrValuationFinancialFixedAssetsInterestsInAssociatedUndertakings" xlink:label="CostOrValuationFinancialFixedAssetsInterestsInAssociatedUndertakings" xlink:title="CostOrValuationFinancialFixedAssetsInterestsInAssociatedUndertakings"/>
    <label xlink:type="resource" xlink:label="label_CostOrValuationFinancialFixedAssetsInterestsInAssociatedUndertakings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CostOrValuationFinancialFixedAssetsInterestsInAssociatedUndertakings" xml:lang="en" id="label_CostOrValuationFinancialFixedAssetsInterestsInAssociatedUndertakings">Cost or valuation, interests in associates</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostOrValuationFinancialFixedAssetsInterestsInAssociatedUndertakings" xlink:to="label_CostOrValuationFinancialFixedAssetsInterestsInAssociatedUndertakings" xlink:title="label: CostOrValuationFinancialFixedAssetsInterestsInAssociatedUndertakings to label_CostOrValuationFinancialFixedAssetsInterestsInAssociatedUndertakings"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CostOrValuationFinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakings" xlink:label="CostOrValuationFinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakings" xlink:title="CostOrValuationFinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakings"/>
    <label xlink:type="resource" xlink:label="label_CostOrValuationFinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CostOrValuationFinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakings" xml:lang="en" id="label_CostOrValuationFinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakings">Cost or valuation, interests in joint-ventures</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostOrValuationFinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakings" xlink:to="label_CostOrValuationFinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakings" xlink:title="label: CostOrValuationFinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakings to label_CostOrValuationFinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakings"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CostOrValuationInvestmentProperties" xlink:label="CostOrValuationInvestmentProperties" xlink:title="CostOrValuationInvestmentProperties"/>
    <label xlink:type="resource" xlink:label="label_CostOrValuationInvestmentProperties" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CostOrValuationInvestmentProperties" xml:lang="en" id="label_CostOrValuationInvestmentProperties">Cost or valuation, investment properties</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostOrValuationInvestmentProperties" xlink:to="label_CostOrValuationInvestmentProperties" xlink:title="label: CostOrValuationInvestmentProperties to label_CostOrValuationInvestmentProperties"/>
    <label xlink:type="resource" xlink:label="label_CostOrValuationInvestmentProperties_2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_CostOrValuationInvestmentProperties" xml:lang="en" id="label_CostOrValuationInvestmentProperties_2">Cost or valuation at end of year</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostOrValuationInvestmentProperties" xlink:to="label_CostOrValuationInvestmentProperties_2" xlink:title="label: CostOrValuationInvestmentProperties to label_CostOrValuationInvestmentProperties"/>
    <label xlink:type="resource" xlink:label="label_CostOrValuationInvestmentProperties_3" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="label_CostOrValuationInvestmentProperties" xml:lang="en" id="label_CostOrValuationInvestmentProperties_3">Cost or valuation at beginning of year</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostOrValuationInvestmentProperties" xlink:to="label_CostOrValuationInvestmentProperties_3" xlink:title="label: CostOrValuationInvestmentProperties to label_CostOrValuationInvestmentProperties"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CostOrValuationLandBuildings" xlink:label="CostOrValuationLandBuildings" xlink:title="CostOrValuationLandBuildings"/>
    <label xlink:type="resource" xlink:label="label_CostOrValuationLandBuildings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CostOrValuationLandBuildings" xml:lang="en" id="label_CostOrValuationLandBuildings">At cost or valuation, land and buildings</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostOrValuationLandBuildings" xlink:to="label_CostOrValuationLandBuildings" xlink:title="label: CostOrValuationLandBuildings to label_CostOrValuationLandBuildings"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CostOrValuationNegativeGoodwill" xlink:label="CostOrValuationNegativeGoodwill" xlink:title="CostOrValuationNegativeGoodwill"/>
    <label xlink:type="resource" xlink:label="label_CostOrValuationNegativeGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CostOrValuationNegativeGoodwill" xml:lang="en" id="label_CostOrValuationNegativeGoodwill">At cost or valuation, negative goodwill</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostOrValuationNegativeGoodwill" xlink:to="label_CostOrValuationNegativeGoodwill" xlink:title="label: CostOrValuationNegativeGoodwill to label_CostOrValuationNegativeGoodwill"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CostOrValuationNetGoodwill" xlink:label="CostOrValuationNetGoodwill" xlink:title="CostOrValuationNetGoodwill"/>
    <label xlink:type="resource" xlink:label="label_CostOrValuationNetGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CostOrValuationNetGoodwill" xml:lang="en" id="label_CostOrValuationNetGoodwill">At cost or valuation, goodwill</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostOrValuationNetGoodwill" xlink:to="label_CostOrValuationNetGoodwill" xlink:title="label: CostOrValuationNetGoodwill to label_CostOrValuationNetGoodwill"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CostOrValuationOtherIntangibleFixedAssets" xlink:label="CostOrValuationOtherIntangibleFixedAssets" xlink:title="CostOrValuationOtherIntangibleFixedAssets"/>
    <label xlink:type="resource" xlink:label="label_CostOrValuationOtherIntangibleFixedAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CostOrValuationOtherIntangibleFixedAssets" xml:lang="en" id="label_CostOrValuationOtherIntangibleFixedAssets">At cost or valuation, other intangible fixed assets</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostOrValuationOtherIntangibleFixedAssets" xlink:to="label_CostOrValuationOtherIntangibleFixedAssets" xlink:title="label: CostOrValuationOtherIntangibleFixedAssets to label_CostOrValuationOtherIntangibleFixedAssets"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CostOrValuationFinancialFixedAssetsSharesInParticipatingInterestUndertakings" xlink:label="CostOrValuationFinancialFixedAssetsSharesInParticipatingInterestUndertakings" xlink:title="CostOrValuationFinancialFixedAssetsSharesInParticipatingInterestUndertakings"/>
    <label xlink:type="resource" xlink:label="label_CostOrValuationFinancialFixedAssetsSharesInParticipatingInterestUndertakings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CostOrValuationFinancialFixedAssetsSharesInParticipatingInterestUndertakings" xml:lang="en" id="label_CostOrValuationFinancialFixedAssetsSharesInParticipatingInterestUndertakings">Cost or valuation, other participating interests</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostOrValuationFinancialFixedAssetsSharesInParticipatingInterestUndertakings" xlink:to="label_CostOrValuationFinancialFixedAssetsSharesInParticipatingInterestUndertakings" xlink:title="label: CostOrValuationFinancialFixedAssetsSharesInParticipatingInterestUndertakings to label_CostOrValuationFinancialFixedAssetsSharesInParticipatingInterestUndertakings"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CostOrValuationPlantMachinery" xlink:label="CostOrValuationPlantMachinery" xlink:title="CostOrValuationPlantMachinery"/>
    <label xlink:type="resource" xlink:label="label_CostOrValuationPlantMachinery" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CostOrValuationPlantMachinery" xml:lang="en" id="label_CostOrValuationPlantMachinery">At cost or valuation, plant and machinery</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostOrValuationPlantMachinery" xlink:to="label_CostOrValuationPlantMachinery" xlink:title="label: CostOrValuationPlantMachinery to label_CostOrValuationPlantMachinery"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CostOrValuationFinancialFixedAssetsSharesInGroupUndertakings" xlink:label="CostOrValuationFinancialFixedAssetsSharesInGroupUndertakings" xlink:title="CostOrValuationFinancialFixedAssetsSharesInGroupUndertakings"/>
    <label xlink:type="resource" xlink:label="label_CostOrValuationFinancialFixedAssetsSharesInGroupUndertakings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CostOrValuationFinancialFixedAssetsSharesInGroupUndertakings" xml:lang="en" id="label_CostOrValuationFinancialFixedAssetsSharesInGroupUndertakings">Cost or valuation, shares in subsidiaries</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostOrValuationFinancialFixedAssetsSharesInGroupUndertakings" xlink:to="label_CostOrValuationFinancialFixedAssetsSharesInGroupUndertakings" xlink:title="label: CostOrValuationFinancialFixedAssetsSharesInGroupUndertakings to label_CostOrValuationFinancialFixedAssetsSharesInGroupUndertakings"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CostOrValuationTangibleFixedAssets" xlink:label="CostOrValuationTangibleFixedAssets" xlink:title="CostOrValuationTangibleFixedAssets"/>
    <label xlink:type="resource" xlink:label="label_CostOrValuationTangibleFixedAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CostOrValuationTangibleFixedAssets" xml:lang="en" id="label_CostOrValuationTangibleFixedAssets">At cost or valuation, tangible fixed assets</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostOrValuationTangibleFixedAssets" xlink:to="label_CostOrValuationTangibleFixedAssets" xlink:title="label: CostOrValuationTangibleFixedAssets to label_CostOrValuationTangibleFixedAssets"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CostOrValuationFinancialFixedAssets" xlink:label="CostOrValuationFinancialFixedAssets" xlink:title="CostOrValuationFinancialFixedAssets"/>
    <label xlink:type="resource" xlink:label="label_CostOrValuationFinancialFixedAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CostOrValuationFinancialFixedAssets" xml:lang="en" id="label_CostOrValuationFinancialFixedAssets">Cost or valuation, financial fixed asset investments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostOrValuationFinancialFixedAssets" xlink:to="label_CostOrValuationFinancialFixedAssets" xlink:title="label: CostOrValuationFinancialFixedAssets to label_CostOrValuationFinancialFixedAssets"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CostFinancialFixedAssetsOther" xlink:label="CostFinancialFixedAssetsOther" xlink:title="CostFinancialFixedAssetsOther"/>
    <label xlink:type="resource" xlink:label="label_CostFinancialFixedAssetsOther" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CostFinancialFixedAssetsOther" xml:lang="en" id="label_CostFinancialFixedAssetsOther">Cost, other loans</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostFinancialFixedAssetsOther" xlink:to="label_CostFinancialFixedAssetsOther" xlink:title="label: CostFinancialFixedAssetsOther to label_CostFinancialFixedAssetsOther"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CostPlantMachineryOnHistoricalCostBasis" xlink:label="CostPlantMachineryOnHistoricalCostBasis" xlink:title="CostPlantMachineryOnHistoricalCostBasis"/>
    <label xlink:type="resource" xlink:label="label_CostPlantMachineryOnHistoricalCostBasis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CostPlantMachineryOnHistoricalCostBasis" xml:lang="en" id="label_CostPlantMachineryOnHistoricalCostBasis">Cost of plant and machinery, on historical cost basis</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostPlantMachineryOnHistoricalCostBasis" xlink:to="label_CostPlantMachineryOnHistoricalCostBasis" xlink:title="label: CostPlantMachineryOnHistoricalCostBasis to label_CostPlantMachineryOnHistoricalCostBasis"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CostSales" xlink:label="CostSales" xlink:title="CostSales"/>
    <label xlink:type="resource" xlink:label="label_CostSales" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CostSales" xml:lang="en" id="label_CostSales">Cost of sales</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostSales" xlink:to="label_CostSales" xlink:title="label: CostSales to label_CostSales"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CostTangibleFixedAssetsOnHistoricalCostBasis" xlink:label="CostTangibleFixedAssetsOnHistoricalCostBasis" xlink:title="CostTangibleFixedAssetsOnHistoricalCostBasis"/>
    <label xlink:type="resource" xlink:label="label_CostTangibleFixedAssetsOnHistoricalCostBasis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CostTangibleFixedAssetsOnHistoricalCostBasis" xml:lang="en" id="label_CostTangibleFixedAssetsOnHistoricalCostBasis">Cost of tangible assets, on historical cost basis</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostTangibleFixedAssetsOnHistoricalCostBasis" xlink:to="label_CostTangibleFixedAssetsOnHistoricalCostBasis" xlink:title="label: CostTangibleFixedAssetsOnHistoricalCostBasis to label_CostTangibleFixedAssetsOnHistoricalCostBasis"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CountryInWhichLargestGroupIncorporated" xlink:label="CountryInWhichLargestGroupIncorporated" xlink:title="CountryInWhichLargestGroupIncorporated"/>
    <label xlink:type="resource" xlink:label="label_CountryInWhichLargestGroupIncorporated" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CountryInWhichLargestGroupIncorporated" xml:lang="en" id="label_CountryInWhichLargestGroupIncorporated">Country in which largest group is incorporated</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CountryInWhichLargestGroupIncorporated" xlink:to="label_CountryInWhichLargestGroupIncorporated" xlink:title="label: CountryInWhichLargestGroupIncorporated to label_CountryInWhichLargestGroupIncorporated"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CountryInWhichSmallestGroupIncorporated" xlink:label="CountryInWhichSmallestGroupIncorporated" xlink:title="CountryInWhichSmallestGroupIncorporated"/>
    <label xlink:type="resource" xlink:label="label_CountryInWhichSmallestGroupIncorporated" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CountryInWhichSmallestGroupIncorporated" xml:lang="en" id="label_CountryInWhichSmallestGroupIncorporated">Country in which smallest group is incorporated</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CountryInWhichSmallestGroupIncorporated" xlink:to="label_CountryInWhichSmallestGroupIncorporated" xlink:title="label: CountryInWhichSmallestGroupIncorporated to label_CountryInWhichSmallestGroupIncorporated"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CreditorsDueAfterOneYearTotalNoncurrentLiabilities" xlink:label="CreditorsDueAfterOneYearTotalNoncurrentLiabilities" xlink:title="CreditorsDueAfterOneYearTotalNoncurrentLiabilities"/>
    <label xlink:type="resource" xlink:label="label_CreditorsDueAfterOneYearTotalNoncurrentLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CreditorsDueAfterOneYearTotalNoncurrentLiabilities" xml:lang="en" id="label_CreditorsDueAfterOneYearTotalNoncurrentLiabilities">Creditors due after one year</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CreditorsDueAfterOneYearTotalNoncurrentLiabilities" xlink:to="label_CreditorsDueAfterOneYearTotalNoncurrentLiabilities" xlink:title="label: CreditorsDueAfterOneYearTotalNoncurrentLiabilities to label_CreditorsDueAfterOneYearTotalNoncurrentLiabilities"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CreditorsDueWithinOneYearTotalCurrentLiabilities" xlink:label="CreditorsDueWithinOneYearTotalCurrentLiabilities" xlink:title="CreditorsDueWithinOneYearTotalCurrentLiabilities"/>
    <label xlink:type="resource" xlink:label="label_CreditorsDueWithinOneYearTotalCurrentLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CreditorsDueWithinOneYearTotalCurrentLiabilities" xml:lang="en" id="label_CreditorsDueWithinOneYearTotalCurrentLiabilities">Creditors: amounts falling due within one year</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CreditorsDueWithinOneYearTotalCurrentLiabilities" xlink:to="label_CreditorsDueWithinOneYearTotalCurrentLiabilities" xlink:title="label: CreditorsDueWithinOneYearTotalCurrentLiabilities to label_CreditorsDueWithinOneYearTotalCurrentLiabilities"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CurrentAssetInvestmentsLiquidResourcesMovementAnalysis" xlink:label="CurrentAssetInvestmentsLiquidResourcesMovementAnalysis" xlink:title="CurrentAssetInvestmentsLiquidResourcesMovementAnalysis"/>
    <label xlink:type="resource" xlink:label="label_CurrentAssetInvestmentsLiquidResourcesMovementAnalysis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CurrentAssetInvestmentsLiquidResourcesMovementAnalysis" xml:lang="en" id="label_CurrentAssetInvestmentsLiquidResourcesMovementAnalysis">Liquid resources</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CurrentAssetInvestmentsLiquidResourcesMovementAnalysis" xlink:to="label_CurrentAssetInvestmentsLiquidResourcesMovementAnalysis" xlink:title="label: CurrentAssetInvestmentsLiquidResourcesMovementAnalysis to label_CurrentAssetInvestmentsLiquidResourcesMovementAnalysis"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_CurrentAssets" xlink:label="CurrentAssets" xlink:title="CurrentAssets"/>
    <label xlink:type="resource" xlink:label="label_CurrentAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CurrentAssets" xml:lang="en" id="label_CurrentAssets">Current assets</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CurrentAssets" xlink:to="label_CurrentAssets" xlink:title="label: CurrentAssets to label_CurrentAssets"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DateDisposal" xlink:label="DateDisposal" xlink:title="DateDisposal"/>
    <label xlink:type="resource" xlink:label="label_DateDisposal" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DateDisposal" xml:lang="en" id="label_DateDisposal">Date of disposal</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DateDisposal" xlink:to="label_DateDisposal" xlink:title="label: DateDisposal to label_DateDisposal"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DateValuation" xlink:label="DateValuation" xlink:title="DateValuation"/>
    <label xlink:type="resource" xlink:label="label_DateValuation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DateValuation" xml:lang="en" id="label_DateValuation">Date of valuation</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DateValuation" xlink:to="label_DateValuation" xlink:title="label: DateValuation to label_DateValuation"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DebentureLoansAfterOneYear" xlink:label="DebentureLoansAfterOneYear" xlink:title="DebentureLoansAfterOneYear"/>
    <label xlink:type="resource" xlink:label="label_DebentureLoansAfterOneYear" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebentureLoansAfterOneYear" xml:lang="en" id="label_DebentureLoansAfterOneYear">Debenture loans after one year</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebentureLoansAfterOneYear" xlink:to="label_DebentureLoansAfterOneYear" xlink:title="label: DebentureLoansAfterOneYear to label_DebentureLoansAfterOneYear"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DebenturesFinanceCharges" xlink:label="DebenturesFinanceCharges" xlink:title="DebenturesFinanceCharges"/>
    <label xlink:type="resource" xlink:label="label_DebenturesFinanceCharges" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebenturesFinanceCharges" xml:lang="en" id="label_DebenturesFinanceCharges">Debentures, finance charges</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebenturesFinanceCharges" xlink:to="label_DebenturesFinanceCharges" xlink:title="label: DebenturesFinanceCharges to label_DebenturesFinanceCharges"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DebtDueAfterOneYear" xlink:label="DebtDueAfterOneYear" xlink:title="DebtDueAfterOneYear"/>
    <label xlink:type="resource" xlink:label="label_DebtDueAfterOneYear" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtDueAfterOneYear" xml:lang="en" id="label_DebtDueAfterOneYear">Debt due after one year</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtDueAfterOneYear" xlink:to="label_DebtDueAfterOneYear" xlink:title="label: DebtDueAfterOneYear to label_DebtDueAfterOneYear"/>
    <label xlink:type="resource" xlink:label="label_DebtDueAfterOneYear_2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_DebtDueAfterOneYear" xml:lang="en" id="label_DebtDueAfterOneYear_2">Debt due after one year, end of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtDueAfterOneYear" xlink:to="label_DebtDueAfterOneYear_2" xlink:title="label: DebtDueAfterOneYear to label_DebtDueAfterOneYear"/>
    <label xlink:type="resource" xlink:label="label_DebtDueAfterOneYear_3" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="label_DebtDueAfterOneYear" xml:lang="en" id="label_DebtDueAfterOneYear_3">Debt due after one year, beginning of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtDueAfterOneYear" xlink:to="label_DebtDueAfterOneYear_3" xlink:title="label: DebtDueAfterOneYear to label_DebtDueAfterOneYear"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DebtDueAfterOneYearMovementAnalysis" xlink:label="DebtDueAfterOneYearMovementAnalysis" xlink:title="DebtDueAfterOneYearMovementAnalysis"/>
    <label xlink:type="resource" xlink:label="label_DebtDueAfterOneYearMovementAnalysis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtDueAfterOneYearMovementAnalysis" xml:lang="en" id="label_DebtDueAfterOneYearMovementAnalysis">Debt due after one year movements analysis</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtDueAfterOneYearMovementAnalysis" xlink:to="label_DebtDueAfterOneYearMovementAnalysis" xlink:title="label: DebtDueAfterOneYearMovementAnalysis to label_DebtDueAfterOneYearMovementAnalysis"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DebtDueWithinOneYear" xlink:label="DebtDueWithinOneYear" xlink:title="DebtDueWithinOneYear"/>
    <label xlink:type="resource" xlink:label="label_DebtDueWithinOneYear" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtDueWithinOneYear" xml:lang="en" id="label_DebtDueWithinOneYear">Debt due within one year</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtDueWithinOneYear" xlink:to="label_DebtDueWithinOneYear" xlink:title="label: DebtDueWithinOneYear to label_DebtDueWithinOneYear"/>
    <label xlink:type="resource" xlink:label="label_DebtDueWithinOneYear_2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_DebtDueWithinOneYear" xml:lang="en" id="label_DebtDueWithinOneYear_2">Debt due within one year, end of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtDueWithinOneYear" xlink:to="label_DebtDueWithinOneYear_2" xlink:title="label: DebtDueWithinOneYear to label_DebtDueWithinOneYear"/>
    <label xlink:type="resource" xlink:label="label_DebtDueWithinOneYear_3" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="label_DebtDueWithinOneYear" xml:lang="en" id="label_DebtDueWithinOneYear_3">Debt due within one year, beginning of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtDueWithinOneYear" xlink:to="label_DebtDueWithinOneYear_3" xlink:title="label: DebtDueWithinOneYear to label_DebtDueWithinOneYear"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DebtDueWithinOneYearMovementAnalysis" xlink:label="DebtDueWithinOneYearMovementAnalysis" xlink:title="DebtDueWithinOneYearMovementAnalysis"/>
    <label xlink:type="resource" xlink:label="label_DebtDueWithinOneYearMovementAnalysis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtDueWithinOneYearMovementAnalysis" xml:lang="en" id="label_DebtDueWithinOneYearMovementAnalysis">Debt due within one year movements analysis</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtDueWithinOneYearMovementAnalysis" xlink:to="label_DebtDueWithinOneYearMovementAnalysis" xlink:title="label: DebtDueWithinOneYearMovementAnalysis to label_DebtDueWithinOneYearMovementAnalysis"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_Debtors" xlink:label="Debtors" xlink:title="Debtors"/>
    <label xlink:type="resource" xlink:label="label_Debtors" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_Debtors" xml:lang="en" id="label_Debtors">Debtors</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="Debtors" xlink:to="label_Debtors" xlink:title="label: Debtors to label_Debtors"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DebtorsDueAfterOneYear" xlink:label="DebtorsDueAfterOneYear" xlink:title="DebtorsDueAfterOneYear"/>
    <label xlink:type="resource" xlink:label="label_DebtorsDueAfterOneYear" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtorsDueAfterOneYear" xml:lang="en" id="label_DebtorsDueAfterOneYear">Debtors due after one year</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtorsDueAfterOneYear" xlink:to="label_DebtorsDueAfterOneYear" xlink:title="label: DebtorsDueAfterOneYear to label_DebtorsDueAfterOneYear"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DebtorsDueWithinOneYear" xlink:label="DebtorsDueWithinOneYear" xlink:title="DebtorsDueWithinOneYear"/>
    <label xlink:type="resource" xlink:label="label_DebtorsDueWithinOneYear" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtorsDueWithinOneYear" xml:lang="en" id="label_DebtorsDueWithinOneYear">Debtors due within one year</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtorsDueWithinOneYear" xlink:to="label_DebtorsDueWithinOneYear" xlink:title="label: DebtorsDueWithinOneYear to label_DebtorsDueWithinOneYear"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DecreaseIncreaseInDebtors" xlink:label="DecreaseIncreaseInDebtors" xlink:title="DecreaseIncreaseInDebtors"/>
    <label xlink:type="resource" xlink:label="label_DecreaseIncreaseInDebtors" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DecreaseIncreaseInDebtors" xml:lang="en" id="label_DecreaseIncreaseInDebtors">Increase (decrease) in debtors</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DecreaseIncreaseInDebtors" xlink:to="label_DecreaseIncreaseInDebtors" xlink:title="label: DecreaseIncreaseInDebtors to label_DecreaseIncreaseInDebtors"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DecreaseIncreaseInNetDebtDuringPeriod" xlink:label="DecreaseIncreaseInNetDebtDuringPeriod" xlink:title="DecreaseIncreaseInNetDebtDuringPeriod"/>
    <label xlink:type="resource" xlink:label="label_DecreaseIncreaseInNetDebtDuringPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DecreaseIncreaseInNetDebtDuringPeriod" xml:lang="en" id="label_DecreaseIncreaseInNetDebtDuringPeriod">Increase (decrease) in net debt during period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DecreaseIncreaseInNetDebtDuringPeriod" xlink:to="label_DecreaseIncreaseInNetDebtDuringPeriod" xlink:title="label: DecreaseIncreaseInNetDebtDuringPeriod to label_DecreaseIncreaseInNetDebtDuringPeriod"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DecreaseIncreaseInProvisions" xlink:label="DecreaseIncreaseInProvisions" xlink:title="DecreaseIncreaseInProvisions"/>
    <label xlink:type="resource" xlink:label="label_DecreaseIncreaseInProvisions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DecreaseIncreaseInProvisions" xml:lang="en" id="label_DecreaseIncreaseInProvisions">Increase (decrease) in provisions</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DecreaseIncreaseInProvisions" xlink:to="label_DecreaseIncreaseInProvisions" xlink:title="label: DecreaseIncreaseInProvisions to label_DecreaseIncreaseInProvisions"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DecreaseIncreaseInStocks" xlink:label="DecreaseIncreaseInStocks" xlink:title="DecreaseIncreaseInStocks"/>
    <label xlink:type="resource" xlink:label="label_DecreaseIncreaseInStocks" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DecreaseIncreaseInStocks" xml:lang="en" id="label_DecreaseIncreaseInStocks">Increase (decrease) in stock</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DecreaseIncreaseInStocks" xlink:to="label_DecreaseIncreaseInStocks" xlink:title="label: DecreaseIncreaseInStocks to label_DecreaseIncreaseInStocks"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DeferredTaxArisingOnGainsLossesInPensionSchemes" xlink:label="DeferredTaxArisingOnGainsLossesInPensionSchemes" xlink:title="DeferredTaxArisingOnGainsLossesInPensionSchemes"/>
    <label xlink:type="resource" xlink:label="label_DeferredTaxArisingOnGainsLossesInPensionSchemes" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DeferredTaxArisingOnGainsLossesInPensionSchemes" xml:lang="en" id="label_DeferredTaxArisingOnGainsLossesInPensionSchemes">Deferred tax (credit) arising on gains (losses) in pension schemes</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DeferredTaxArisingOnGainsLossesInPensionSchemes" xlink:to="label_DeferredTaxArisingOnGainsLossesInPensionSchemes" xlink:title="label: DeferredTaxArisingOnGainsLossesInPensionSchemes to label_DeferredTaxArisingOnGainsLossesInPensionSchemes"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DeferredTaxArisingOnOtherGainsLossesRecognisedInThisStatement" xlink:label="DeferredTaxArisingOnOtherGainsLossesRecognisedInThisStatement" xlink:title="DeferredTaxArisingOnOtherGainsLossesRecognisedInThisStatement"/>
    <label xlink:type="resource" xlink:label="label_DeferredTaxArisingOnOtherGainsLossesRecognisedInThisStatement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DeferredTaxArisingOnOtherGainsLossesRecognisedInThisStatement" xml:lang="en" id="label_DeferredTaxArisingOnOtherGainsLossesRecognisedInThisStatement">Deferred tax (credit) arising on other gains and losses recognised in STRGL</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DeferredTaxArisingOnOtherGainsLossesRecognisedInThisStatement" xlink:to="label_DeferredTaxArisingOnOtherGainsLossesRecognisedInThisStatement" xlink:title="label: DeferredTaxArisingOnOtherGainsLossesRecognisedInThisStatement to label_DeferredTaxArisingOnOtherGainsLossesRecognisedInThisStatement"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DeferredTaxCurrentAsset" xlink:label="DeferredTaxCurrentAsset" xlink:title="DeferredTaxCurrentAsset"/>
    <label xlink:type="resource" xlink:label="label_DeferredTaxCurrentAsset" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DeferredTaxCurrentAsset" xml:lang="en" id="label_DeferredTaxCurrentAsset">Deferred tax asset</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DeferredTaxCurrentAsset" xlink:to="label_DeferredTaxCurrentAsset" xlink:title="label: DeferredTaxCurrentAsset to label_DeferredTaxCurrentAsset"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DeferredTaxCurrentAssetDueAfterOneYear" xlink:label="DeferredTaxCurrentAssetDueAfterOneYear" xlink:title="DeferredTaxCurrentAssetDueAfterOneYear"/>
    <label xlink:type="resource" xlink:label="label_DeferredTaxCurrentAssetDueAfterOneYear" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DeferredTaxCurrentAssetDueAfterOneYear" xml:lang="en" id="label_DeferredTaxCurrentAssetDueAfterOneYear">Deferred tax, current asset due after one year</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DeferredTaxCurrentAssetDueAfterOneYear" xlink:to="label_DeferredTaxCurrentAssetDueAfterOneYear" xlink:title="label: DeferredTaxCurrentAssetDueAfterOneYear to label_DeferredTaxCurrentAssetDueAfterOneYear"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DeferredTaxCurrentAssetDueWithinOneYear" xlink:label="DeferredTaxCurrentAssetDueWithinOneYear" xlink:title="DeferredTaxCurrentAssetDueWithinOneYear"/>
    <label xlink:type="resource" xlink:label="label_DeferredTaxCurrentAssetDueWithinOneYear" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DeferredTaxCurrentAssetDueWithinOneYear" xml:lang="en" id="label_DeferredTaxCurrentAssetDueWithinOneYear">Deferred tax, current asset due within one year</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DeferredTaxCurrentAssetDueWithinOneYear" xlink:to="label_DeferredTaxCurrentAssetDueWithinOneYear" xlink:title="label: DeferredTaxCurrentAssetDueWithinOneYear to label_DeferredTaxCurrentAssetDueWithinOneYear"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DeferredTaxLiability" xlink:label="DeferredTaxLiability" xlink:title="DeferredTaxLiability"/>
    <label xlink:type="resource" xlink:label="label_DeferredTaxLiability" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DeferredTaxLiability" xml:lang="en" id="label_DeferredTaxLiability">Deferred tax liability</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DeferredTaxLiability" xlink:to="label_DeferredTaxLiability" xlink:title="label: DeferredTaxLiability to label_DeferredTaxLiability"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DefiniteRedemptionDate" xlink:label="DefiniteRedemptionDate" xlink:title="DefiniteRedemptionDate"/>
    <label xlink:type="resource" xlink:label="label_DefiniteRedemptionDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DefiniteRedemptionDate" xml:lang="en" id="label_DefiniteRedemptionDate">Definite redemption date</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DefiniteRedemptionDate" xlink:to="label_DefiniteRedemptionDate" xlink:title="label: DefiniteRedemptionDate to label_DefiniteRedemptionDate"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DepreciationFixturesFittingsToolsEquipment" xlink:label="DepreciationFixturesFittingsToolsEquipment" xlink:title="DepreciationFixturesFittingsToolsEquipment"/>
    <label xlink:type="resource" xlink:label="label_DepreciationFixturesFittingsToolsEquipment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DepreciationFixturesFittingsToolsEquipment" xml:lang="en" id="label_DepreciationFixturesFittingsToolsEquipment">Accumulated depreciation, fixtures, fittings, tools and equipment</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DepreciationFixturesFittingsToolsEquipment" xlink:to="label_DepreciationFixturesFittingsToolsEquipment" xlink:title="label: DepreciationFixturesFittingsToolsEquipment to label_DepreciationFixturesFittingsToolsEquipment"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DepreciationLandBuildings" xlink:label="DepreciationLandBuildings" xlink:title="DepreciationLandBuildings"/>
    <label xlink:type="resource" xlink:label="label_DepreciationLandBuildings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DepreciationLandBuildings" xml:lang="en" id="label_DepreciationLandBuildings">Accumulated depreciation, land and buildings</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DepreciationLandBuildings" xlink:to="label_DepreciationLandBuildings" xlink:title="label: DepreciationLandBuildings to label_DepreciationLandBuildings"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DepreciationPlantMachinery" xlink:label="DepreciationPlantMachinery" xlink:title="DepreciationPlantMachinery"/>
    <label xlink:type="resource" xlink:label="label_DepreciationPlantMachinery" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DepreciationPlantMachinery" xml:lang="en" id="label_DepreciationPlantMachinery">Accumulated depreciation, plant and machinery</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DepreciationPlantMachinery" xlink:to="label_DepreciationPlantMachinery" xlink:title="label: DepreciationPlantMachinery to label_DepreciationPlantMachinery"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DepreciationTangibleFixedAssets" xlink:label="DepreciationTangibleFixedAssets" xlink:title="DepreciationTangibleFixedAssets"/>
    <label xlink:type="resource" xlink:label="label_DepreciationTangibleFixedAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DepreciationTangibleFixedAssets" xml:lang="en" id="label_DepreciationTangibleFixedAssets">Accumulated depreciation, tangible fixed assets</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DepreciationTangibleFixedAssets" xlink:to="label_DepreciationTangibleFixedAssets" xlink:title="label: DepreciationTangibleFixedAssets to label_DepreciationTangibleFixedAssets"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DescriptionExceptionalItem" xlink:label="DescriptionExceptionalItem" xlink:title="DescriptionExceptionalItem"/>
    <label xlink:type="resource" xlink:label="label_DescriptionExceptionalItem" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DescriptionExceptionalItem" xml:lang="en" id="label_DescriptionExceptionalItem">Exceptional item description</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DescriptionExceptionalItem" xlink:to="label_DescriptionExceptionalItem" xlink:title="label: DescriptionExceptionalItem to label_DescriptionExceptionalItem"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DescriptionOrReasonsForShareIssue" xlink:label="DescriptionOrReasonsForShareIssue" xlink:title="DescriptionOrReasonsForShareIssue"/>
    <label xlink:type="resource" xlink:label="label_DescriptionOrReasonsForShareIssue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DescriptionOrReasonsForShareIssue" xml:lang="en" id="label_DescriptionOrReasonsForShareIssue">Description or reasons for share issue</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DescriptionOrReasonsForShareIssue" xlink:to="label_DescriptionOrReasonsForShareIssue" xlink:title="label: DescriptionOrReasonsForShareIssue to label_DescriptionOrReasonsForShareIssue"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DetailsExceptionalItem" xlink:label="DetailsExceptionalItem" xlink:title="DetailsExceptionalItem"/>
    <label xlink:type="resource" xlink:label="label_DetailsExceptionalItem" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DetailsExceptionalItem" xml:lang="en" id="label_DetailsExceptionalItem">Exceptional item details </label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DetailsExceptionalItem" xlink:to="label_DetailsExceptionalItem" xlink:title="label: DetailsExceptionalItem to label_DetailsExceptionalItem"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DetailsRedeemablePreferenceShares" xlink:label="DetailsRedeemablePreferenceShares" xlink:title="DetailsRedeemablePreferenceShares"/>
    <label xlink:type="resource" xlink:label="label_DetailsRedeemablePreferenceShares" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DetailsRedeemablePreferenceShares" xml:lang="en" id="label_DetailsRedeemablePreferenceShares">Redeemable preference shares</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DetailsRedeemablePreferenceShares" xlink:to="label_DetailsRedeemablePreferenceShares" xlink:title="label: DetailsRedeemablePreferenceShares to label_DetailsRedeemablePreferenceShares"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DetailsSharesIssuedInPeriod" xlink:label="DetailsSharesIssuedInPeriod" xlink:title="DetailsSharesIssuedInPeriod"/>
    <label xlink:type="resource" xlink:label="label_DetailsSharesIssuedInPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DetailsSharesIssuedInPeriod" xml:lang="en" id="label_DetailsSharesIssuedInPeriod">Details of shares issued in period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DetailsSharesIssuedInPeriod" xlink:to="label_DetailsSharesIssuedInPeriod" xlink:title="label: DetailsSharesIssuedInPeriod to label_DetailsSharesIssuedInPeriod"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DevelopmentCosts" xlink:label="DevelopmentCosts" xlink:title="DevelopmentCosts"/>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DevelopmentCosts" xlink:to="label_DevelopmentCosts" xlink:title="label: DevelopmentCosts to label_DevelopmentCosts"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DevelopmentCostsAdditions" xlink:label="DevelopmentCostsAdditions" xlink:title="DevelopmentCostsAdditions"/>
    <label xlink:type="resource" xlink:label="label_DevelopmentCostsAdditions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DevelopmentCostsAdditions" xml:lang="en" id="label_DevelopmentCostsAdditions">Development costs, additions</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DevelopmentCostsAdditions" xlink:to="label_DevelopmentCostsAdditions" xlink:title="label: DevelopmentCostsAdditions to label_DevelopmentCostsAdditions"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DevelopmentCostsAggregateAmortisationImpairment" xlink:label="DevelopmentCostsAggregateAmortisationImpairment" xlink:title="DevelopmentCostsAggregateAmortisationImpairment"/>
    <label xlink:type="resource" xlink:label="label_DevelopmentCostsAggregateAmortisationImpairment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DevelopmentCostsAggregateAmortisationImpairment" xml:lang="en" id="label_DevelopmentCostsAggregateAmortisationImpairment">Development costs, aggregate amortisation and impairment</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DevelopmentCostsAggregateAmortisationImpairment" xlink:to="label_DevelopmentCostsAggregateAmortisationImpairment" xlink:title="label: DevelopmentCostsAggregateAmortisationImpairment to label_DevelopmentCostsAggregateAmortisationImpairment"/>
    <label xlink:type="resource" xlink:label="label_DevelopmentCostsAggregateAmortisationImpairment_2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_DevelopmentCostsAggregateAmortisationImpairment" xml:lang="en" id="label_DevelopmentCostsAggregateAmortisationImpairment_2">Development costs, aggregate amortisation and impairment, end of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DevelopmentCostsAggregateAmortisationImpairment" xlink:to="label_DevelopmentCostsAggregateAmortisationImpairment_2" xlink:title="label: DevelopmentCostsAggregateAmortisationImpairment to label_DevelopmentCostsAggregateAmortisationImpairment"/>
    <label xlink:type="resource" xlink:label="label_DevelopmentCostsAggregateAmortisationImpairment_3" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="label_DevelopmentCostsAggregateAmortisationImpairment" xml:lang="en" id="label_DevelopmentCostsAggregateAmortisationImpairment_3">Development costs, aggregate amortisation and impairment, beginning of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DevelopmentCostsAggregateAmortisationImpairment" xlink:to="label_DevelopmentCostsAggregateAmortisationImpairment_3" xlink:title="label: DevelopmentCostsAggregateAmortisationImpairment to label_DevelopmentCostsAggregateAmortisationImpairment"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DevelopmentCostsAmortisationChargedInPeriod" xlink:label="DevelopmentCostsAmortisationChargedInPeriod" xlink:title="DevelopmentCostsAmortisationChargedInPeriod"/>
    <label xlink:type="resource" xlink:label="label_DevelopmentCostsAmortisationChargedInPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DevelopmentCostsAmortisationChargedInPeriod" xml:lang="en" id="label_DevelopmentCostsAmortisationChargedInPeriod">Development costs, amortisation charged in period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DevelopmentCostsAmortisationChargedInPeriod" xlink:to="label_DevelopmentCostsAmortisationChargedInPeriod" xlink:title="label: DevelopmentCostsAmortisationChargedInPeriod to label_DevelopmentCostsAmortisationChargedInPeriod"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DevelopmentCostsAmortisationCreditedInPeriod" xlink:label="DevelopmentCostsAmortisationCreditedInPeriod" xlink:title="DevelopmentCostsAmortisationCreditedInPeriod"/>
    <label xlink:type="resource" xlink:label="label_DevelopmentCostsAmortisationCreditedInPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DevelopmentCostsAmortisationCreditedInPeriod" xml:lang="en" id="label_DevelopmentCostsAmortisationCreditedInPeriod">Development costs, amortisation credited in period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DevelopmentCostsAmortisationCreditedInPeriod" xlink:to="label_DevelopmentCostsAmortisationCreditedInPeriod" xlink:title="label: DevelopmentCostsAmortisationCreditedInPeriod to label_DevelopmentCostsAmortisationCreditedInPeriod"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DevelopmentCostsAmortisationImpairmentLosses" xlink:label="DevelopmentCostsAmortisationImpairmentLosses" xlink:title="DevelopmentCostsAmortisationImpairmentLosses"/>
    <label xlink:type="resource" xlink:label="label_DevelopmentCostsAmortisationImpairmentLosses" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DevelopmentCostsAmortisationImpairmentLosses" xml:lang="en" id="label_DevelopmentCostsAmortisationImpairmentLosses">Development costs, impairment losses adjustment to amortisation</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DevelopmentCostsAmortisationImpairmentLosses" xlink:to="label_DevelopmentCostsAmortisationImpairmentLosses" xlink:title="label: DevelopmentCostsAmortisationImpairmentLosses to label_DevelopmentCostsAmortisationImpairmentLosses"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DevelopmentCostsAmortisationIncreaseDecreaseFromExchangeAdjustment" xlink:label="DevelopmentCostsAmortisationIncreaseDecreaseFromExchangeAdjustment" xlink:title="DevelopmentCostsAmortisationIncreaseDecreaseFromExchangeAdjustment"/>
    <label xlink:type="resource" xlink:label="label_DevelopmentCostsAmortisationIncreaseDecreaseFromExchangeAdjustment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DevelopmentCostsAmortisationIncreaseDecreaseFromExchangeAdjustment" xml:lang="en" id="label_DevelopmentCostsAmortisationIncreaseDecreaseFromExchangeAdjustment">Development costs, amortisation, increase (decrease) from exchange adjustment</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DevelopmentCostsAmortisationIncreaseDecreaseFromExchangeAdjustment" xlink:to="label_DevelopmentCostsAmortisationIncreaseDecreaseFromExchangeAdjustment" xlink:title="label: DevelopmentCostsAmortisationIncreaseDecreaseFromExchangeAdjustment to label_DevelopmentCostsAmortisationIncreaseDecreaseFromExchangeAdjustment"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DevelopmentCostsAmortisationIncreaseDecreaseFromTransfersBetweenItems" xlink:label="DevelopmentCostsAmortisationIncreaseDecreaseFromTransfersBetweenItems" xlink:title="DevelopmentCostsAmortisationIncreaseDecreaseFromTransfersBetweenItems"/>
    <label xlink:type="resource" xlink:label="label_DevelopmentCostsAmortisationIncreaseDecreaseFromTransfersBetweenItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DevelopmentCostsAmortisationIncreaseDecreaseFromTransfersBetweenItems" xml:lang="en" id="label_DevelopmentCostsAmortisationIncreaseDecreaseFromTransfersBetweenItems">Development costs, amortisation, increase (decrease) from transfers between items</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DevelopmentCostsAmortisationIncreaseDecreaseFromTransfersBetweenItems" xlink:to="label_DevelopmentCostsAmortisationIncreaseDecreaseFromTransfersBetweenItems" xlink:title="label: DevelopmentCostsAmortisationIncreaseDecreaseFromTransfersBetweenItems to label_DevelopmentCostsAmortisationIncreaseDecreaseFromTransfersBetweenItems"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DevelopmentCostsAmortisationOnDisposals" xlink:label="DevelopmentCostsAmortisationOnDisposals" xlink:title="DevelopmentCostsAmortisationOnDisposals"/>
    <label xlink:type="resource" xlink:label="label_DevelopmentCostsAmortisationOnDisposals" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DevelopmentCostsAmortisationOnDisposals" xml:lang="en" id="label_DevelopmentCostsAmortisationOnDisposals">Development costs, amortisation on disposals</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DevelopmentCostsAmortisationOnDisposals" xlink:to="label_DevelopmentCostsAmortisationOnDisposals" xlink:title="label: DevelopmentCostsAmortisationOnDisposals to label_DevelopmentCostsAmortisationOnDisposals"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DevelopmentCostsAmortisationReversalPastImpairments" xlink:label="DevelopmentCostsAmortisationReversalPastImpairments" xlink:title="DevelopmentCostsAmortisationReversalPastImpairments"/>
    <label xlink:type="resource" xlink:label="label_DevelopmentCostsAmortisationReversalPastImpairments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DevelopmentCostsAmortisationReversalPastImpairments" xml:lang="en" id="label_DevelopmentCostsAmortisationReversalPastImpairments">Development costs, amortisation, reversal of past impairments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DevelopmentCostsAmortisationReversalPastImpairments" xlink:to="label_DevelopmentCostsAmortisationReversalPastImpairments" xlink:title="label: DevelopmentCostsAmortisationReversalPastImpairments to label_DevelopmentCostsAmortisationReversalPastImpairments"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DevelopmentCostsCostOrValuation" xlink:label="DevelopmentCostsCostOrValuation" xlink:title="DevelopmentCostsCostOrValuation"/>
    <label xlink:type="resource" xlink:label="label_DevelopmentCostsCostOrValuation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DevelopmentCostsCostOrValuation" xml:lang="en" id="label_DevelopmentCostsCostOrValuation">Development costs, at cost or valuation</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DevelopmentCostsCostOrValuation" xlink:to="label_DevelopmentCostsCostOrValuation" xlink:title="label: DevelopmentCostsCostOrValuation to label_DevelopmentCostsCostOrValuation"/>
    <label xlink:type="resource" xlink:label="label_DevelopmentCostsCostOrValuation_2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_DevelopmentCostsCostOrValuation" xml:lang="en" id="label_DevelopmentCostsCostOrValuation_2">Development costs, at cost or valuation, end of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DevelopmentCostsCostOrValuation" xlink:to="label_DevelopmentCostsCostOrValuation_2" xlink:title="label: DevelopmentCostsCostOrValuation to label_DevelopmentCostsCostOrValuation"/>
    <label xlink:type="resource" xlink:label="label_DevelopmentCostsCostOrValuation_3" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="label_DevelopmentCostsCostOrValuation" xml:lang="en" id="label_DevelopmentCostsCostOrValuation_3">Development costs, at cost or valuation, beginning of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DevelopmentCostsCostOrValuation" xlink:to="label_DevelopmentCostsCostOrValuation_3" xlink:title="label: DevelopmentCostsCostOrValuation to label_DevelopmentCostsCostOrValuation"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DevelopmentCostsDisposals" xlink:label="DevelopmentCostsDisposals" xlink:title="DevelopmentCostsDisposals"/>
    <label xlink:type="resource" xlink:label="label_DevelopmentCostsDisposals" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DevelopmentCostsDisposals" xml:lang="en" id="label_DevelopmentCostsDisposals">Development costs, disposals</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DevelopmentCostsDisposals" xlink:to="label_DevelopmentCostsDisposals" xlink:title="label: DevelopmentCostsDisposals to label_DevelopmentCostsDisposals"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DevelopmentCostsImpairmentLosses" xlink:label="DevelopmentCostsImpairmentLosses" xlink:title="DevelopmentCostsImpairmentLosses"/>
    <label xlink:type="resource" xlink:label="label_DevelopmentCostsImpairmentLosses" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DevelopmentCostsImpairmentLosses" xml:lang="en" id="label_DevelopmentCostsImpairmentLosses">Development costs, impairment losses</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DevelopmentCostsImpairmentLosses" xlink:to="label_DevelopmentCostsImpairmentLosses" xlink:title="label: DevelopmentCostsImpairmentLosses to label_DevelopmentCostsImpairmentLosses"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DevelopmentCostsIncreaseDecreaseFromExchangeAdjustment" xlink:label="DevelopmentCostsIncreaseDecreaseFromExchangeAdjustment" xlink:title="DevelopmentCostsIncreaseDecreaseFromExchangeAdjustment"/>
    <label xlink:type="resource" xlink:label="label_DevelopmentCostsIncreaseDecreaseFromExchangeAdjustment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DevelopmentCostsIncreaseDecreaseFromExchangeAdjustment" xml:lang="en" id="label_DevelopmentCostsIncreaseDecreaseFromExchangeAdjustment">Development costs, increase (decrease) from exchange adjustment</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DevelopmentCostsIncreaseDecreaseFromExchangeAdjustment" xlink:to="label_DevelopmentCostsIncreaseDecreaseFromExchangeAdjustment" xlink:title="label: DevelopmentCostsIncreaseDecreaseFromExchangeAdjustment to label_DevelopmentCostsIncreaseDecreaseFromExchangeAdjustment"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DevelopmentCostsIncreaseDecreaseFromTransfersBetweenItems" xlink:label="DevelopmentCostsIncreaseDecreaseFromTransfersBetweenItems" xlink:title="DevelopmentCostsIncreaseDecreaseFromTransfersBetweenItems"/>
    <label xlink:type="resource" xlink:label="label_DevelopmentCostsIncreaseDecreaseFromTransfersBetweenItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DevelopmentCostsIncreaseDecreaseFromTransfersBetweenItems" xml:lang="en" id="label_DevelopmentCostsIncreaseDecreaseFromTransfersBetweenItems">Development costs, increase (decrease) from transfers between items</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DevelopmentCostsIncreaseDecreaseFromTransfersBetweenItems" xlink:to="label_DevelopmentCostsIncreaseDecreaseFromTransfersBetweenItems" xlink:title="label: DevelopmentCostsIncreaseDecreaseFromTransfersBetweenItems to label_DevelopmentCostsIncreaseDecreaseFromTransfersBetweenItems"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DevelopmentCostsMovementAnalysis" xlink:label="DevelopmentCostsMovementAnalysis" xlink:title="DevelopmentCostsMovementAnalysis"/>
    <label xlink:type="resource" xlink:label="label_DevelopmentCostsMovementAnalysis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DevelopmentCostsMovementAnalysis" xml:lang="en" id="label_DevelopmentCostsMovementAnalysis">Development costs movements analysis</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DevelopmentCostsMovementAnalysis" xlink:to="label_DevelopmentCostsMovementAnalysis" xlink:title="label: DevelopmentCostsMovementAnalysis to label_DevelopmentCostsMovementAnalysis"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DevelopmentCostsReversalPastImpairments" xlink:label="DevelopmentCostsReversalPastImpairments" xlink:title="DevelopmentCostsReversalPastImpairments"/>
    <label xlink:type="resource" xlink:label="label_DevelopmentCostsReversalPastImpairments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DevelopmentCostsReversalPastImpairments" xml:lang="en" id="label_DevelopmentCostsReversalPastImpairments">Development costs, reversal of past impairments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DevelopmentCostsReversalPastImpairments" xlink:to="label_DevelopmentCostsReversalPastImpairments" xlink:title="label: DevelopmentCostsReversalPastImpairments to label_DevelopmentCostsReversalPastImpairments"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DifferenceBetweenAccumulatedDepreciationAmortisationCapitalAllowances" xlink:label="DifferenceBetweenAccumulatedDepreciationAmortisationCapitalAllowances" xlink:title="DifferenceBetweenAccumulatedDepreciationAmortisationCapitalAllowances"/>
    <label xlink:type="resource" xlink:label="label_DifferenceBetweenAccumulatedDepreciationAmortisationCapitalAllowances" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DifferenceBetweenAccumulatedDepreciationAmortisationCapitalAllowances" xml:lang="en" id="label_DifferenceBetweenAccumulatedDepreciationAmortisationCapitalAllowances">Difference between accumulated depreciation and amortisation and capital allowances</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DifferenceBetweenAccumulatedDepreciationAmortisationCapitalAllowances" xlink:to="label_DifferenceBetweenAccumulatedDepreciationAmortisationCapitalAllowances" xlink:title="label: DifferenceBetweenAccumulatedDepreciationAmortisationCapitalAllowances to label_DifferenceBetweenAccumulatedDepreciationAmortisationCapitalAllowances"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DirectorsAndTheirInterestsAnalysis" xlink:label="DirectorsAndTheirInterestsAnalysis" xlink:title="DirectorsAndTheirInterestsAnalysis"/>
    <label xlink:type="resource" xlink:label="label_DirectorsAndTheirInterestsAnalysis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DirectorsAndTheirInterestsAnalysis" xml:lang="en" id="label_DirectorsAndTheirInterestsAnalysis">Directors' and their interests</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DirectorsAndTheirInterestsAnalysis" xlink:to="label_DirectorsAndTheirInterestsAnalysis" xlink:title="label: DirectorsAndTheirInterestsAnalysis to label_DirectorsAndTheirInterestsAnalysis"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_Discount" xlink:label="Discount" xlink:title="Discount"/>
    <label xlink:type="resource" xlink:label="label_Discount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_Discount" xml:lang="en" id="label_Discount">Discount</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="Discount" xlink:to="label_Discount" xlink:title="label: Discount to label_Discount"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NetProvisionForDeferredTaxation" xlink:label="NetProvisionForDeferredTaxation" xlink:title="NetProvisionForDeferredTaxation"/>
    <label xlink:type="resource" xlink:label="label_NetProvisionForDeferredTaxation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NetProvisionForDeferredTaxation" xml:lang="en" id="label_NetProvisionForDeferredTaxation">Net provision for deferred taxation</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetProvisionForDeferredTaxation" xlink:to="label_NetProvisionForDeferredTaxation" xlink:title="label: NetProvisionForDeferredTaxation to label_NetProvisionForDeferredTaxation"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DisposalsAnalysis" xlink:label="DisposalsAnalysis" xlink:title="DisposalsAnalysis"/>
    <label xlink:type="resource" xlink:label="label_DisposalsAnalysis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DisposalsAnalysis" xml:lang="en" id="label_DisposalsAnalysis">Disposals of financial fixed asset investments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DisposalsAnalysis" xlink:to="label_DisposalsAnalysis" xlink:title="label: DisposalsAnalysis to label_DisposalsAnalysis"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DisposalSubsidiariesMinorityInterests" xlink:label="DisposalSubsidiariesMinorityInterests" xlink:title="DisposalSubsidiariesMinorityInterests"/>
    <label xlink:type="resource" xlink:label="label_DisposalSubsidiariesMinorityInterests" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DisposalSubsidiariesMinorityInterests" xml:lang="en" id="label_DisposalSubsidiariesMinorityInterests">Minority interests eliminated on disposal of subsidiary undertakings</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DisposalSubsidiariesMinorityInterests" xlink:to="label_DisposalSubsidiariesMinorityInterests" xlink:title="label: DisposalSubsidiariesMinorityInterests to label_DisposalSubsidiariesMinorityInterests"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DividendsFromAssociates" xlink:label="DividendsFromAssociates" xlink:title="DividendsFromAssociates"/>
    <label xlink:type="resource" xlink:label="label_DividendsFromAssociates" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DividendsFromAssociates" xml:lang="en" id="label_DividendsFromAssociates">Dividends from associates</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DividendsFromAssociates" xlink:to="label_DividendsFromAssociates" xlink:title="label: DividendsFromAssociates to label_DividendsFromAssociates"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DividendsFromAssociatesJointventures" xlink:label="DividendsFromAssociatesJointventures" xlink:title="DividendsFromAssociatesJointventures"/>
    <label xlink:type="resource" xlink:label="label_DividendsFromAssociatesJointventures" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DividendsFromAssociatesJointventures" xml:lang="en" id="label_DividendsFromAssociatesJointventures">Dividends from associates and joint-ventures</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DividendsFromAssociatesJointventures" xlink:to="label_DividendsFromAssociatesJointventures" xlink:title="label: DividendsFromAssociatesJointventures to label_DividendsFromAssociatesJointventures"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DividendsFromJointventures" xlink:label="DividendsFromJointventures" xlink:title="DividendsFromJointventures"/>
    <label xlink:type="resource" xlink:label="label_DividendsFromJointventures" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DividendsFromJointventures" xml:lang="en" id="label_DividendsFromJointventures">Dividends from joint-ventures</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DividendsFromJointventures" xlink:to="label_DividendsFromJointventures" xlink:title="label: DividendsFromJointventures to label_DividendsFromJointventures"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DividendsPaidToMinorityInterests" xlink:label="DividendsPaidToMinorityInterests" xlink:title="DividendsPaidToMinorityInterests"/>
    <label xlink:type="resource" xlink:label="label_DividendsPaidToMinorityInterests" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DividendsPaidToMinorityInterests" xml:lang="en" id="label_DividendsPaidToMinorityInterests">Dividends paid to minority interests</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DividendsPaidToMinorityInterests" xlink:to="label_DividendsPaidToMinorityInterests" xlink:title="label: DividendsPaidToMinorityInterests to label_DividendsPaidToMinorityInterests"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DividendsReceived" xlink:label="DividendsReceived" xlink:title="DividendsReceived"/>
    <label xlink:type="resource" xlink:label="label_DividendsReceived" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DividendsReceived" xml:lang="en" id="label_DividendsReceived">Dividends received</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DividendsReceived" xlink:to="label_DividendsReceived" xlink:title="label: DividendsReceived to label_DividendsReceived"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_DoubleTaxationRelief" xlink:label="DoubleTaxationRelief" xlink:title="DoubleTaxationRelief"/>
    <label xlink:type="resource" xlink:label="label_DoubleTaxationRelief" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DoubleTaxationRelief" xml:lang="en" id="label_DoubleTaxationRelief">Double taxation relief</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DoubleTaxationRelief" xlink:to="label_DoubleTaxationRelief" xlink:title="label: DoubleTaxationRelief to label_DoubleTaxationRelief"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_EarliestRedemptionDate" xlink:label="EarliestRedemptionDate" xlink:title="EarliestRedemptionDate"/>
    <label xlink:type="resource" xlink:label="label_EarliestRedemptionDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_EarliestRedemptionDate" xml:lang="en" id="label_EarliestRedemptionDate">Earliest redemption date</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EarliestRedemptionDate" xlink:to="label_EarliestRedemptionDate" xlink:title="label: EarliestRedemptionDate to label_EarliestRedemptionDate"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_EffectIncreaseDecreaseInTaxRateOnOpeningLiability" xlink:label="EffectIncreaseDecreaseInTaxRateOnOpeningLiability" xlink:title="EffectIncreaseDecreaseInTaxRateOnOpeningLiability"/>
    <label xlink:type="resource" xlink:label="label_EffectIncreaseDecreaseInTaxRateOnOpeningLiability" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_EffectIncreaseDecreaseInTaxRateOnOpeningLiability" xml:lang="en" id="label_EffectIncreaseDecreaseInTaxRateOnOpeningLiability">Effect of increase (decrease) in tax rate on opening liability</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EffectIncreaseDecreaseInTaxRateOnOpeningLiability" xlink:to="label_EffectIncreaseDecreaseInTaxRateOnOpeningLiability" xlink:title="label: EffectIncreaseDecreaseInTaxRateOnOpeningLiability to label_EffectIncreaseDecreaseInTaxRateOnOpeningLiability"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_EffectiveTaxRate" xlink:label="EffectiveTaxRate" xlink:title="EffectiveTaxRate"/>
    <label xlink:type="resource" xlink:label="label_EffectiveTaxRate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_EffectiveTaxRate" xml:lang="en" id="label_EffectiveTaxRate">Effective tax rate</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EffectiveTaxRate" xlink:to="label_EffectiveTaxRate" xlink:title="label: EffectiveTaxRate to label_EffectiveTaxRate"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_EmployeeInformationAnalysis" xlink:label="EmployeeInformationAnalysis" xlink:title="EmployeeInformationAnalysis"/>
    <label xlink:type="resource" xlink:label="label_EmployeeInformationAnalysis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_EmployeeInformationAnalysis" xml:lang="en" id="label_EmployeeInformationAnalysis">Staff numbers and costs</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EmployeeInformationAnalysis" xlink:to="label_EmployeeInformationAnalysis" xlink:title="label: EmployeeInformationAnalysis to label_EmployeeInformationAnalysis"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_EquityDividendsPaid" xlink:label="EquityDividendsPaid" xlink:title="EquityDividendsPaid"/>
    <label xlink:type="resource" xlink:label="label_EquityDividendsPaid" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_EquityDividendsPaid" xml:lang="en" id="label_EquityDividendsPaid">Equity dividends paid</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EquityDividendsPaid" xlink:to="label_EquityDividendsPaid" xlink:title="label: EquityDividendsPaid to label_EquityDividendsPaid"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_ExcessReplacementCostsFinishedGoodsGoodsForResale" xlink:label="ExcessReplacementCostsFinishedGoodsGoodsForResale" xlink:title="ExcessReplacementCostsFinishedGoodsGoodsForResale"/>
    <label xlink:type="resource" xlink:label="label_ExcessReplacementCostsFinishedGoodsGoodsForResale" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ExcessReplacementCostsFinishedGoodsGoodsForResale" xml:lang="en" id="label_ExcessReplacementCostsFinishedGoodsGoodsForResale">Excess of replacement costs, finished goods and goods for resale</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ExcessReplacementCostsFinishedGoodsGoodsForResale" xlink:to="label_ExcessReplacementCostsFinishedGoodsGoodsForResale" xlink:title="label: ExcessReplacementCostsFinishedGoodsGoodsForResale to label_ExcessReplacementCostsFinishedGoodsGoodsForResale"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_ExcessReplacementCostsOverBalanceSheetValues" xlink:label="ExcessReplacementCostsOverBalanceSheetValues" xlink:title="ExcessReplacementCostsOverBalanceSheetValues"/>
    <label xlink:type="resource" xlink:label="label_ExcessReplacementCostsOverBalanceSheetValues" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ExcessReplacementCostsOverBalanceSheetValues" xml:lang="en" id="label_ExcessReplacementCostsOverBalanceSheetValues">Excess of replacement costs over balance sheet values</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ExcessReplacementCostsOverBalanceSheetValues" xlink:to="label_ExcessReplacementCostsOverBalanceSheetValues" xlink:title="label: ExcessReplacementCostsOverBalanceSheetValues to label_ExcessReplacementCostsOverBalanceSheetValues"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_ExcessReplacementCostsRawMaterialsConsumables" xlink:label="ExcessReplacementCostsRawMaterialsConsumables" xlink:title="ExcessReplacementCostsRawMaterialsConsumables"/>
    <label xlink:type="resource" xlink:label="label_ExcessReplacementCostsRawMaterialsConsumables" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ExcessReplacementCostsRawMaterialsConsumables" xml:lang="en" id="label_ExcessReplacementCostsRawMaterialsConsumables">Excess of replacement costs, raw materials and consumables</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ExcessReplacementCostsRawMaterialsConsumables" xlink:to="label_ExcessReplacementCostsRawMaterialsConsumables" xlink:title="label: ExcessReplacementCostsRawMaterialsConsumables to label_ExcessReplacementCostsRawMaterialsConsumables"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_ExcessReplacementCostsWorkInProgress" xlink:label="ExcessReplacementCostsWorkInProgress" xlink:title="ExcessReplacementCostsWorkInProgress"/>
    <label xlink:type="resource" xlink:label="label_ExcessReplacementCostsWorkInProgress" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ExcessReplacementCostsWorkInProgress" xml:lang="en" id="label_ExcessReplacementCostsWorkInProgress">Excess of replacement costs, work in progress</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ExcessReplacementCostsWorkInProgress" xlink:to="label_ExcessReplacementCostsWorkInProgress" xlink:title="label: ExcessReplacementCostsWorkInProgress to label_ExcessReplacementCostsWorkInProgress"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_ExchangeGainLossOnForeignCurrencyBorrowingsDepositsProfitLossComponent" xlink:label="ExchangeGainLossOnForeignCurrencyBorrowingsDepositsProfitLossComponent" xlink:title="ExchangeGainLossOnForeignCurrencyBorrowingsDepositsProfitLossComponent"/>
    <label xlink:type="resource" xlink:label="label_ExchangeGainLossOnForeignCurrencyBorrowingsDepositsProfitLossComponent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ExchangeGainLossOnForeignCurrencyBorrowingsDepositsProfitLossComponent" xml:lang="en" id="label_ExchangeGainLossOnForeignCurrencyBorrowingsDepositsProfitLossComponent">Exchange differences on foreign currency borrowings less deposits</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ExchangeGainLossOnForeignCurrencyBorrowingsDepositsProfitLossComponent" xlink:to="label_ExchangeGainLossOnForeignCurrencyBorrowingsDepositsProfitLossComponent" xlink:title="label: ExchangeGainLossOnForeignCurrencyBorrowingsDepositsProfitLossComponent to label_ExchangeGainLossOnForeignCurrencyBorrowingsDepositsProfitLossComponent"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_ExpensesNotDeductibleForTaxPurposes" xlink:label="ExpensesNotDeductibleForTaxPurposes" xlink:title="ExpensesNotDeductibleForTaxPurposes"/>
    <label xlink:type="resource" xlink:label="label_ExpensesNotDeductibleForTaxPurposes" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ExpensesNotDeductibleForTaxPurposes" xml:lang="en" id="label_ExpensesNotDeductibleForTaxPurposes">Expenses not deductible for tax purposes</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ExpensesNotDeductibleForTaxPurposes" xlink:to="label_ExpensesNotDeductibleForTaxPurposes" xlink:title="label: ExpensesNotDeductibleForTaxPurposes to label_ExpensesNotDeductibleForTaxPurposes"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_ExtraordinaryProfitLoss" xlink:label="ExtraordinaryProfitLoss" xlink:title="ExtraordinaryProfitLoss"/>
    <label xlink:type="resource" xlink:label="label_ExtraordinaryProfitLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ExtraordinaryProfitLoss" xml:lang="en" id="label_ExtraordinaryProfitLoss">Extraordinary profit (loss)</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ExtraordinaryProfitLoss" xlink:to="label_ExtraordinaryProfitLoss" xlink:title="label: ExtraordinaryProfitLoss to label_ExtraordinaryProfitLoss"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FeesDirectors" xlink:label="FeesDirectors" xlink:title="FeesDirectors"/>
    <label xlink:type="resource" xlink:label="label_FeesDirectors" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FeesDirectors" xml:lang="en" id="label_FeesDirectors">Fees, directors</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FeesDirectors" xlink:to="label_FeesDirectors" xlink:title="label: FeesDirectors to label_FeesDirectors"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_InterestPayableAndSimilarCharges" xlink:label="InterestPayableAndSimilarCharges" xlink:title="InterestPayableAndSimilarCharges"/>
    <label xlink:type="resource" xlink:label="label_InterestPayableAndSimilarCharges" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_InterestPayableAndSimilarCharges" xml:lang="en" id="label_InterestPayableAndSimilarCharges">Interest payable and similar charges</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InterestPayableAndSimilarCharges" xlink:to="label_InterestPayableAndSimilarCharges" xlink:title="label: InterestPayableAndSimilarCharges to label_InterestPayableAndSimilarCharges"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FinanceLeaseHirePurchaseContractCommitmentsNotProvidedFor" xlink:label="FinanceLeaseHirePurchaseContractCommitmentsNotProvidedFor" xlink:title="FinanceLeaseHirePurchaseContractCommitmentsNotProvidedFor"/>
    <label xlink:type="resource" xlink:label="label_FinanceLeaseHirePurchaseContractCommitmentsNotProvidedFor" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FinanceLeaseHirePurchaseContractCommitmentsNotProvidedFor" xml:lang="en" id="label_FinanceLeaseHirePurchaseContractCommitmentsNotProvidedFor">Finance lease and hire purchase contracts entered into</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinanceLeaseHirePurchaseContractCommitmentsNotProvidedFor" xlink:to="label_FinanceLeaseHirePurchaseContractCommitmentsNotProvidedFor" xlink:title="label: FinanceLeaseHirePurchaseContractCommitmentsNotProvidedFor to label_FinanceLeaseHirePurchaseContractCommitmentsNotProvidedFor"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FinanceLeasesHirePurchaseContractsAfterFiveYears" xlink:label="FinanceLeasesHirePurchaseContractsAfterFiveYears" xlink:title="FinanceLeasesHirePurchaseContractsAfterFiveYears"/>
    <label xlink:type="resource" xlink:label="label_FinanceLeasesHirePurchaseContractsAfterFiveYears" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FinanceLeasesHirePurchaseContractsAfterFiveYears" xml:lang="en" id="label_FinanceLeasesHirePurchaseContractsAfterFiveYears">Finance leases and hire purchase contracts after five years</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinanceLeasesHirePurchaseContractsAfterFiveYears" xlink:to="label_FinanceLeasesHirePurchaseContractsAfterFiveYears" xlink:title="label: FinanceLeasesHirePurchaseContractsAfterFiveYears to label_FinanceLeasesHirePurchaseContractsAfterFiveYears"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FinanceLeasesHirePurchaseContractsBetweenOneToTwoYears" xlink:label="FinanceLeasesHirePurchaseContractsBetweenOneToTwoYears" xlink:title="FinanceLeasesHirePurchaseContractsBetweenOneToTwoYears"/>
    <label xlink:type="resource" xlink:label="label_FinanceLeasesHirePurchaseContractsBetweenOneToTwoYears" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FinanceLeasesHirePurchaseContractsBetweenOneToTwoYears" xml:lang="en" id="label_FinanceLeasesHirePurchaseContractsBetweenOneToTwoYears">Finance leases and hire purchase contracts between one to two years</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinanceLeasesHirePurchaseContractsBetweenOneToTwoYears" xlink:to="label_FinanceLeasesHirePurchaseContractsBetweenOneToTwoYears" xlink:title="label: FinanceLeasesHirePurchaseContractsBetweenOneToTwoYears to label_FinanceLeasesHirePurchaseContractsBetweenOneToTwoYears"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FinanceLeasesHirePurchaseContractsBetweenTwoToFiveYears" xlink:label="FinanceLeasesHirePurchaseContractsBetweenTwoToFiveYears" xlink:title="FinanceLeasesHirePurchaseContractsBetweenTwoToFiveYears"/>
    <label xlink:type="resource" xlink:label="label_FinanceLeasesHirePurchaseContractsBetweenTwoToFiveYears" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FinanceLeasesHirePurchaseContractsBetweenTwoToFiveYears" xml:lang="en" id="label_FinanceLeasesHirePurchaseContractsBetweenTwoToFiveYears">Finance leases and hire purchase contracts between two to five years</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinanceLeasesHirePurchaseContractsBetweenTwoToFiveYears" xlink:to="label_FinanceLeasesHirePurchaseContractsBetweenTwoToFiveYears" xlink:title="label: FinanceLeasesHirePurchaseContractsBetweenTwoToFiveYears to label_FinanceLeasesHirePurchaseContractsBetweenTwoToFiveYears"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FinanceLeasesHirePurchaseContractsFinanceCharges" xlink:label="FinanceLeasesHirePurchaseContractsFinanceCharges" xlink:title="FinanceLeasesHirePurchaseContractsFinanceCharges"/>
    <label xlink:type="resource" xlink:label="label_FinanceLeasesHirePurchaseContractsFinanceCharges" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FinanceLeasesHirePurchaseContractsFinanceCharges" xml:lang="en" id="label_FinanceLeasesHirePurchaseContractsFinanceCharges">Finance lease interest payable in respect of finance leases and hire purchase contracts</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinanceLeasesHirePurchaseContractsFinanceCharges" xlink:to="label_FinanceLeasesHirePurchaseContractsFinanceCharges" xlink:title="label: FinanceLeasesHirePurchaseContractsFinanceCharges to label_FinanceLeasesHirePurchaseContractsFinanceCharges"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FinanceLeasesHirePurchaseContractsMaturityProfile" xlink:label="FinanceLeasesHirePurchaseContractsMaturityProfile" xlink:title="FinanceLeasesHirePurchaseContractsMaturityProfile"/>
    <label xlink:type="resource" xlink:label="label_FinanceLeasesHirePurchaseContractsMaturityProfile" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FinanceLeasesHirePurchaseContractsMaturityProfile" xml:lang="en" id="label_FinanceLeasesHirePurchaseContractsMaturityProfile">Finance lease and hire purchase contracts maturity analysis</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinanceLeasesHirePurchaseContractsMaturityProfile" xlink:to="label_FinanceLeasesHirePurchaseContractsMaturityProfile" xlink:title="label: FinanceLeasesHirePurchaseContractsMaturityProfile to label_FinanceLeasesHirePurchaseContractsMaturityProfile"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FinishedGoodsGoodsForResale" xlink:label="FinishedGoodsGoodsForResale" xlink:title="FinishedGoodsGoodsForResale"/>
    <label xlink:type="resource" xlink:label="label_FinishedGoodsGoodsForResale" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FinishedGoodsGoodsForResale" xml:lang="en" id="label_FinishedGoodsGoodsForResale">Finished goods and goods for resale</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinishedGoodsGoodsForResale" xlink:to="label_FinishedGoodsGoodsForResale" xlink:title="label: FinishedGoodsGoodsForResale to label_FinishedGoodsGoodsForResale"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FixedAssets" xlink:label="FixedAssets" xlink:title="FixedAssets"/>
    <label xlink:type="resource" xlink:label="label_FixedAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FixedAssets" xml:lang="en" id="label_FixedAssets">Fixed assets</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FixedAssets" xlink:to="label_FixedAssets" xlink:title="label: FixedAssets to label_FixedAssets"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FixedAssetsAnalysis" xlink:label="FixedAssetsAnalysis" xlink:title="FixedAssetsAnalysis"/>
    <label xlink:type="resource" xlink:label="label_FixedAssetsAnalysis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FixedAssetsAnalysis" xml:lang="en" id="label_FixedAssetsAnalysis">Fixed assets analysis</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FixedAssetsAnalysis" xlink:to="label_FixedAssetsAnalysis" xlink:title="label: FixedAssetsAnalysis to label_FixedAssetsAnalysis"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FixedAssetsInvestmentsAnalysis" xlink:label="FixedAssetsInvestmentsAnalysis" xlink:title="FixedAssetsInvestmentsAnalysis"/>
    <label xlink:type="resource" xlink:label="label_FixedAssetsInvestmentsAnalysis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FixedAssetsInvestmentsAnalysis" xml:lang="en" id="label_FixedAssetsInvestmentsAnalysis">Financial fixed asset investments analysis</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FixedAssetsInvestmentsAnalysis" xlink:to="label_FixedAssetsInvestmentsAnalysis" xlink:title="label: FixedAssetsInvestmentsAnalysis to label_FixedAssetsInvestmentsAnalysis"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FixturesFittingsToolsEquipment" xlink:label="FixturesFittingsToolsEquipment" xlink:title="FixturesFittingsToolsEquipment"/>
    <label xlink:type="resource" xlink:label="label_FixturesFittingsToolsEquipment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FixturesFittingsToolsEquipment" xml:lang="en" id="label_FixturesFittingsToolsEquipment">Fixtures, fittings, tools and equipment</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FixturesFittingsToolsEquipment" xlink:to="label_FixturesFittingsToolsEquipment" xlink:title="label: FixturesFittingsToolsEquipment to label_FixturesFittingsToolsEquipment"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FixturesFittingsToolsEquipmentAcquisitions" xlink:label="FixturesFittingsToolsEquipmentAcquisitions" xlink:title="FixturesFittingsToolsEquipmentAcquisitions"/>
    <label xlink:type="resource" xlink:label="label_FixturesFittingsToolsEquipmentAcquisitions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FixturesFittingsToolsEquipmentAcquisitions" xml:lang="en" id="label_FixturesFittingsToolsEquipmentAcquisitions">Fixtures, fittings, tools and equipment, acquisitions</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FixturesFittingsToolsEquipmentAcquisitions" xlink:to="label_FixturesFittingsToolsEquipmentAcquisitions" xlink:title="label: FixturesFittingsToolsEquipmentAcquisitions to label_FixturesFittingsToolsEquipmentAcquisitions"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FixturesFittingsToolsEquipmentAdditions" xlink:label="FixturesFittingsToolsEquipmentAdditions" xlink:title="FixturesFittingsToolsEquipmentAdditions"/>
    <label xlink:type="resource" xlink:label="label_FixturesFittingsToolsEquipmentAdditions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FixturesFittingsToolsEquipmentAdditions" xml:lang="en" id="label_FixturesFittingsToolsEquipmentAdditions">Fixtures, fittings, tools and equipment, additions</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FixturesFittingsToolsEquipmentAdditions" xlink:to="label_FixturesFittingsToolsEquipmentAdditions" xlink:title="label: FixturesFittingsToolsEquipmentAdditions to label_FixturesFittingsToolsEquipmentAdditions"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FixturesFittingsToolsEquipmentAnalysis" xlink:label="FixturesFittingsToolsEquipmentAnalysis" xlink:title="FixturesFittingsToolsEquipmentAnalysis"/>
    <label xlink:type="resource" xlink:label="label_FixturesFittingsToolsEquipmentAnalysis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FixturesFittingsToolsEquipmentAnalysis" xml:lang="en" id="label_FixturesFittingsToolsEquipmentAnalysis">Fixtures, fittings, tools and equipment movements analysis</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FixturesFittingsToolsEquipmentAnalysis" xlink:to="label_FixturesFittingsToolsEquipmentAnalysis" xlink:title="label: FixturesFittingsToolsEquipmentAnalysis to label_FixturesFittingsToolsEquipmentAnalysis"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FixturesFittingsToolsEquipmentCostOrValuation" xlink:label="FixturesFittingsToolsEquipmentCostOrValuation" xlink:title="FixturesFittingsToolsEquipmentCostOrValuation"/>
    <label xlink:type="resource" xlink:label="label_FixturesFittingsToolsEquipmentCostOrValuation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FixturesFittingsToolsEquipmentCostOrValuation" xml:lang="en" id="label_FixturesFittingsToolsEquipmentCostOrValuation">Fixtures, fittings, tools and equipment, at cost or valuation</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FixturesFittingsToolsEquipmentCostOrValuation" xlink:to="label_FixturesFittingsToolsEquipmentCostOrValuation" xlink:title="label: FixturesFittingsToolsEquipmentCostOrValuation to label_FixturesFittingsToolsEquipmentCostOrValuation"/>
    <label xlink:type="resource" xlink:label="label_FixturesFittingsToolsEquipmentCostOrValuation_2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_FixturesFittingsToolsEquipmentCostOrValuation" xml:lang="en" id="label_FixturesFittingsToolsEquipmentCostOrValuation_2">Fixtures, fittings, tools and equipment, at cost or valuation, end of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FixturesFittingsToolsEquipmentCostOrValuation" xlink:to="label_FixturesFittingsToolsEquipmentCostOrValuation_2" xlink:title="label: FixturesFittingsToolsEquipmentCostOrValuation to label_FixturesFittingsToolsEquipmentCostOrValuation"/>
    <label xlink:type="resource" xlink:label="label_FixturesFittingsToolsEquipmentCostOrValuation_3" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="label_FixturesFittingsToolsEquipmentCostOrValuation" xml:lang="en" id="label_FixturesFittingsToolsEquipmentCostOrValuation_3">Fixtures, fittings, tools and equipment, at cost or valuation, beginning of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FixturesFittingsToolsEquipmentCostOrValuation" xlink:to="label_FixturesFittingsToolsEquipmentCostOrValuation_3" xlink:title="label: FixturesFittingsToolsEquipmentCostOrValuation to label_FixturesFittingsToolsEquipmentCostOrValuation"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FixturesFittingsToolsEquipmentDepreciation" xlink:label="FixturesFittingsToolsEquipmentDepreciation" xlink:title="FixturesFittingsToolsEquipmentDepreciation"/>
    <label xlink:type="resource" xlink:label="label_FixturesFittingsToolsEquipmentDepreciation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FixturesFittingsToolsEquipmentDepreciation" xml:lang="en" id="label_FixturesFittingsToolsEquipmentDepreciation">Fixtures, fittings, tools and equipment, depreciation</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FixturesFittingsToolsEquipmentDepreciation" xlink:to="label_FixturesFittingsToolsEquipmentDepreciation" xlink:title="label: FixturesFittingsToolsEquipmentDepreciation to label_FixturesFittingsToolsEquipmentDepreciation"/>
    <label xlink:type="resource" xlink:label="label_FixturesFittingsToolsEquipmentDepreciation_2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_FixturesFittingsToolsEquipmentDepreciation" xml:lang="en" id="label_FixturesFittingsToolsEquipmentDepreciation_2">Fixtures, fittings, tools and equipment, depreciation, end of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FixturesFittingsToolsEquipmentDepreciation" xlink:to="label_FixturesFittingsToolsEquipmentDepreciation_2" xlink:title="label: FixturesFittingsToolsEquipmentDepreciation to label_FixturesFittingsToolsEquipmentDepreciation"/>
    <label xlink:type="resource" xlink:label="label_FixturesFittingsToolsEquipmentDepreciation_3" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="label_FixturesFittingsToolsEquipmentDepreciation" xml:lang="en" id="label_FixturesFittingsToolsEquipmentDepreciation_3">Fixtures, fittings, tools and equipment, depreciation, beginning of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FixturesFittingsToolsEquipmentDepreciation" xlink:to="label_FixturesFittingsToolsEquipmentDepreciation_3" xlink:title="label: FixturesFittingsToolsEquipmentDepreciation to label_FixturesFittingsToolsEquipmentDepreciation"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FixturesFittingsToolsEquipmentDepreciationAcquisitions" xlink:label="FixturesFittingsToolsEquipmentDepreciationAcquisitions" xlink:title="FixturesFittingsToolsEquipmentDepreciationAcquisitions"/>
    <label xlink:type="resource" xlink:label="label_FixturesFittingsToolsEquipmentDepreciationAcquisitions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FixturesFittingsToolsEquipmentDepreciationAcquisitions" xml:lang="en" id="label_FixturesFittingsToolsEquipmentDepreciationAcquisitions">Fixtures, fittings, tools and equipment, depreciation, acquisitions</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FixturesFittingsToolsEquipmentDepreciationAcquisitions" xlink:to="label_FixturesFittingsToolsEquipmentDepreciationAcquisitions" xlink:title="label: FixturesFittingsToolsEquipmentDepreciationAcquisitions to label_FixturesFittingsToolsEquipmentDepreciationAcquisitions"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FixturesFittingsToolsEquipmentDepreciationChargeForPeriod" xlink:label="FixturesFittingsToolsEquipmentDepreciationChargeForPeriod" xlink:title="FixturesFittingsToolsEquipmentDepreciationChargeForPeriod"/>
    <label xlink:type="resource" xlink:label="label_FixturesFittingsToolsEquipmentDepreciationChargeForPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FixturesFittingsToolsEquipmentDepreciationChargeForPeriod" xml:lang="en" id="label_FixturesFittingsToolsEquipmentDepreciationChargeForPeriod">Fixtures, fittings, tools and equipment, depreciation, charge for period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FixturesFittingsToolsEquipmentDepreciationChargeForPeriod" xlink:to="label_FixturesFittingsToolsEquipmentDepreciationChargeForPeriod" xlink:title="label: FixturesFittingsToolsEquipmentDepreciationChargeForPeriod to label_FixturesFittingsToolsEquipmentDepreciationChargeForPeriod"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FixturesFittingsToolsEquipmentDepreciationDisposals" xlink:label="FixturesFittingsToolsEquipmentDepreciationDisposals" xlink:title="FixturesFittingsToolsEquipmentDepreciationDisposals"/>
    <label xlink:type="resource" xlink:label="label_FixturesFittingsToolsEquipmentDepreciationDisposals" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FixturesFittingsToolsEquipmentDepreciationDisposals" xml:lang="en" id="label_FixturesFittingsToolsEquipmentDepreciationDisposals">Fixtures, fittings, tools and equipment, depreciation, disposals</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FixturesFittingsToolsEquipmentDepreciationDisposals" xlink:to="label_FixturesFittingsToolsEquipmentDepreciationDisposals" xlink:title="label: FixturesFittingsToolsEquipmentDepreciationDisposals to label_FixturesFittingsToolsEquipmentDepreciationDisposals"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FixturesFittingsToolsEquipmentDepreciationDisposedWithSubsidiary" xlink:label="FixturesFittingsToolsEquipmentDepreciationDisposedWithSubsidiary" xlink:title="FixturesFittingsToolsEquipmentDepreciationDisposedWithSubsidiary"/>
    <label xlink:type="resource" xlink:label="label_FixturesFittingsToolsEquipmentDepreciationDisposedWithSubsidiary" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FixturesFittingsToolsEquipmentDepreciationDisposedWithSubsidiary" xml:lang="en" id="label_FixturesFittingsToolsEquipmentDepreciationDisposedWithSubsidiary">Fixtures, fittings, tools and equipment, depreciation, disposed with subsidiary</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FixturesFittingsToolsEquipmentDepreciationDisposedWithSubsidiary" xlink:to="label_FixturesFittingsToolsEquipmentDepreciationDisposedWithSubsidiary" xlink:title="label: FixturesFittingsToolsEquipmentDepreciationDisposedWithSubsidiary to label_FixturesFittingsToolsEquipmentDepreciationDisposedWithSubsidiary"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FixturesFittingsToolsEquipmentDepreciationImpairmentLosses" xlink:label="FixturesFittingsToolsEquipmentDepreciationImpairmentLosses" xlink:title="FixturesFittingsToolsEquipmentDepreciationImpairmentLosses"/>
    <label xlink:type="resource" xlink:label="label_FixturesFittingsToolsEquipmentDepreciationImpairmentLosses" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FixturesFittingsToolsEquipmentDepreciationImpairmentLosses" xml:lang="en" id="label_FixturesFittingsToolsEquipmentDepreciationImpairmentLosses">Fixtures, fittings, tools and equipment, depreciation, impairment losses</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FixturesFittingsToolsEquipmentDepreciationImpairmentLosses" xlink:to="label_FixturesFittingsToolsEquipmentDepreciationImpairmentLosses" xlink:title="label: FixturesFittingsToolsEquipmentDepreciationImpairmentLosses to label_FixturesFittingsToolsEquipmentDepreciationImpairmentLosses"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FixturesFittingsToolsEquipmentDepreciationIncreaseDecreaseFromExchangeAdjustments" xlink:label="FixturesFittingsToolsEquipmentDepreciationIncreaseDecreaseFromExchangeAdjustments" xlink:title="FixturesFittingsToolsEquipmentDepreciationIncreaseDecreaseFromExchangeAdjustments"/>
    <label xlink:type="resource" xlink:label="label_FixturesFittingsToolsEquipmentDepreciationIncreaseDecreaseFromExchangeAdjustments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FixturesFittingsToolsEquipmentDepreciationIncreaseDecreaseFromExchangeAdjustments" xml:lang="en" id="label_FixturesFittingsToolsEquipmentDepreciationIncreaseDecreaseFromExchangeAdjustments">Fixtures, fittings, tools and equipment, depreciation, increase (decrease) from exchange adjustments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FixturesFittingsToolsEquipmentDepreciationIncreaseDecreaseFromExchangeAdjustments" xlink:to="label_FixturesFittingsToolsEquipmentDepreciationIncreaseDecreaseFromExchangeAdjustments" xlink:title="label: FixturesFittingsToolsEquipmentDepreciationIncreaseDecreaseFromExchangeAdjustments to label_FixturesFittingsToolsEquipmentDepreciationIncreaseDecreaseFromExchangeAdjustments"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FixturesFittingsToolsEquipmentDepreciationIncreaseDecreaseFromRevaluations" xlink:label="FixturesFittingsToolsEquipmentDepreciationIncreaseDecreaseFromRevaluations" xlink:title="FixturesFittingsToolsEquipmentDepreciationIncreaseDecreaseFromRevaluations"/>
    <label xlink:type="resource" xlink:label="label_FixturesFittingsToolsEquipmentDepreciationIncreaseDecreaseFromRevaluations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FixturesFittingsToolsEquipmentDepreciationIncreaseDecreaseFromRevaluations" xml:lang="en" id="label_FixturesFittingsToolsEquipmentDepreciationIncreaseDecreaseFromRevaluations">Fixtures, fittings, tools and equipment, depreciation, increase (decrease) from revaluations</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FixturesFittingsToolsEquipmentDepreciationIncreaseDecreaseFromRevaluations" xlink:to="label_FixturesFittingsToolsEquipmentDepreciationIncreaseDecreaseFromRevaluations" xlink:title="label: FixturesFittingsToolsEquipmentDepreciationIncreaseDecreaseFromRevaluations to label_FixturesFittingsToolsEquipmentDepreciationIncreaseDecreaseFromRevaluations"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FixturesFittingsToolsEquipmentDepreciationIncreaseDecreaseFromTransfersBetweenItems" xlink:label="FixturesFittingsToolsEquipmentDepreciationIncreaseDecreaseFromTransfersBetweenItems" xlink:title="FixturesFittingsToolsEquipmentDepreciationIncreaseDecreaseFromTransfersBetweenItems"/>
    <label xlink:type="resource" xlink:label="label_FixturesFittingsToolsEquipmentDepreciationIncreaseDecreaseFromTransfersBetweenItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FixturesFittingsToolsEquipmentDepreciationIncreaseDecreaseFromTransfersBetweenItems" xml:lang="en" id="label_FixturesFittingsToolsEquipmentDepreciationIncreaseDecreaseFromTransfersBetweenItems">Fixtures, fittings, tools and equipment, depreciation, increase (decrease) from transfers between items</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FixturesFittingsToolsEquipmentDepreciationIncreaseDecreaseFromTransfersBetweenItems" xlink:to="label_FixturesFittingsToolsEquipmentDepreciationIncreaseDecreaseFromTransfersBetweenItems" xlink:title="label: FixturesFittingsToolsEquipmentDepreciationIncreaseDecreaseFromTransfersBetweenItems to label_FixturesFittingsToolsEquipmentDepreciationIncreaseDecreaseFromTransfersBetweenItems"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FixturesFittingsToolsEquipmentDepreciationReversalPastImpairments" xlink:label="FixturesFittingsToolsEquipmentDepreciationReversalPastImpairments" xlink:title="FixturesFittingsToolsEquipmentDepreciationReversalPastImpairments"/>
    <label xlink:type="resource" xlink:label="label_FixturesFittingsToolsEquipmentDepreciationReversalPastImpairments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FixturesFittingsToolsEquipmentDepreciationReversalPastImpairments" xml:lang="en" id="label_FixturesFittingsToolsEquipmentDepreciationReversalPastImpairments">Fixtures, fittings, tools and equipment, depreciation, reversal of past impairments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FixturesFittingsToolsEquipmentDepreciationReversalPastImpairments" xlink:to="label_FixturesFittingsToolsEquipmentDepreciationReversalPastImpairments" xlink:title="label: FixturesFittingsToolsEquipmentDepreciationReversalPastImpairments to label_FixturesFittingsToolsEquipmentDepreciationReversalPastImpairments"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FixturesFittingsToolsEquipmentDisposals" xlink:label="FixturesFittingsToolsEquipmentDisposals" xlink:title="FixturesFittingsToolsEquipmentDisposals"/>
    <label xlink:type="resource" xlink:label="label_FixturesFittingsToolsEquipmentDisposals" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FixturesFittingsToolsEquipmentDisposals" xml:lang="en" id="label_FixturesFittingsToolsEquipmentDisposals">Fixtures, fittings, tools and equipment, disposals</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FixturesFittingsToolsEquipmentDisposals" xlink:to="label_FixturesFittingsToolsEquipmentDisposals" xlink:title="label: FixturesFittingsToolsEquipmentDisposals to label_FixturesFittingsToolsEquipmentDisposals"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FixturesFittingsToolsEquipmentDisposedWithSubsidiary" xlink:label="FixturesFittingsToolsEquipmentDisposedWithSubsidiary" xlink:title="FixturesFittingsToolsEquipmentDisposedWithSubsidiary"/>
    <label xlink:type="resource" xlink:label="label_FixturesFittingsToolsEquipmentDisposedWithSubsidiary" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FixturesFittingsToolsEquipmentDisposedWithSubsidiary" xml:lang="en" id="label_FixturesFittingsToolsEquipmentDisposedWithSubsidiary">Fixtures, fittings, tools and equipment, disposed with subsidiary</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FixturesFittingsToolsEquipmentDisposedWithSubsidiary" xlink:to="label_FixturesFittingsToolsEquipmentDisposedWithSubsidiary" xlink:title="label: FixturesFittingsToolsEquipmentDisposedWithSubsidiary to label_FixturesFittingsToolsEquipmentDisposedWithSubsidiary"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FixturesFittingsToolsEquipmentImpairmentLosses" xlink:label="FixturesFittingsToolsEquipmentImpairmentLosses" xlink:title="FixturesFittingsToolsEquipmentImpairmentLosses"/>
    <label xlink:type="resource" xlink:label="label_FixturesFittingsToolsEquipmentImpairmentLosses" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FixturesFittingsToolsEquipmentImpairmentLosses" xml:lang="en" id="label_FixturesFittingsToolsEquipmentImpairmentLosses">Fixtures, fittings, tools and equipment, impairment losses</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FixturesFittingsToolsEquipmentImpairmentLosses" xlink:to="label_FixturesFittingsToolsEquipmentImpairmentLosses" xlink:title="label: FixturesFittingsToolsEquipmentImpairmentLosses to label_FixturesFittingsToolsEquipmentImpairmentLosses"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FixturesFittingsToolsEquipmentIncreaseDecreaseFromExchangeAdjustments" xlink:label="FixturesFittingsToolsEquipmentIncreaseDecreaseFromExchangeAdjustments" xlink:title="FixturesFittingsToolsEquipmentIncreaseDecreaseFromExchangeAdjustments"/>
    <label xlink:type="resource" xlink:label="label_FixturesFittingsToolsEquipmentIncreaseDecreaseFromExchangeAdjustments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FixturesFittingsToolsEquipmentIncreaseDecreaseFromExchangeAdjustments" xml:lang="en" id="label_FixturesFittingsToolsEquipmentIncreaseDecreaseFromExchangeAdjustments">Fixtures, fittings, tools and equipment, increase (decrease) from exchange adjustments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FixturesFittingsToolsEquipmentIncreaseDecreaseFromExchangeAdjustments" xlink:to="label_FixturesFittingsToolsEquipmentIncreaseDecreaseFromExchangeAdjustments" xlink:title="label: FixturesFittingsToolsEquipmentIncreaseDecreaseFromExchangeAdjustments to label_FixturesFittingsToolsEquipmentIncreaseDecreaseFromExchangeAdjustments"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FixturesFittingsToolsEquipmentIncreaseDecreaseFromRevaluations" xlink:label="FixturesFittingsToolsEquipmentIncreaseDecreaseFromRevaluations" xlink:title="FixturesFittingsToolsEquipmentIncreaseDecreaseFromRevaluations"/>
    <label xlink:type="resource" xlink:label="label_FixturesFittingsToolsEquipmentIncreaseDecreaseFromRevaluations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FixturesFittingsToolsEquipmentIncreaseDecreaseFromRevaluations" xml:lang="en" id="label_FixturesFittingsToolsEquipmentIncreaseDecreaseFromRevaluations">Fixtures, fittings, tools and equipment, increase (decrease) from revaluations</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FixturesFittingsToolsEquipmentIncreaseDecreaseFromRevaluations" xlink:to="label_FixturesFittingsToolsEquipmentIncreaseDecreaseFromRevaluations" xlink:title="label: FixturesFittingsToolsEquipmentIncreaseDecreaseFromRevaluations to label_FixturesFittingsToolsEquipmentIncreaseDecreaseFromRevaluations"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FixturesFittingsToolsEquipmentIncreaseDecreaseFromTransfersBetweenItems" xlink:label="FixturesFittingsToolsEquipmentIncreaseDecreaseFromTransfersBetweenItems" xlink:title="FixturesFittingsToolsEquipmentIncreaseDecreaseFromTransfersBetweenItems"/>
    <label xlink:type="resource" xlink:label="label_FixturesFittingsToolsEquipmentIncreaseDecreaseFromTransfersBetweenItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FixturesFittingsToolsEquipmentIncreaseDecreaseFromTransfersBetweenItems" xml:lang="en" id="label_FixturesFittingsToolsEquipmentIncreaseDecreaseFromTransfersBetweenItems">Fixtures, fittings, tools and equipment, increase (decrease) from transfers between items</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FixturesFittingsToolsEquipmentIncreaseDecreaseFromTransfersBetweenItems" xlink:to="label_FixturesFittingsToolsEquipmentIncreaseDecreaseFromTransfersBetweenItems" xlink:title="label: FixturesFittingsToolsEquipmentIncreaseDecreaseFromTransfersBetweenItems to label_FixturesFittingsToolsEquipmentIncreaseDecreaseFromTransfersBetweenItems"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FixturesFittingsToolsEquipmentNetBookValueOnHistoricalCostBasis" xlink:label="FixturesFittingsToolsEquipmentNetBookValueOnHistoricalCostBasis" xlink:title="FixturesFittingsToolsEquipmentNetBookValueOnHistoricalCostBasis"/>
    <label xlink:type="resource" xlink:label="label_FixturesFittingsToolsEquipmentNetBookValueOnHistoricalCostBasis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FixturesFittingsToolsEquipmentNetBookValueOnHistoricalCostBasis" xml:lang="en" id="label_FixturesFittingsToolsEquipmentNetBookValueOnHistoricalCostBasis">Fixtures, fittings, tools and equipment, net book value on historical cost basis</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FixturesFittingsToolsEquipmentNetBookValueOnHistoricalCostBasis" xlink:to="label_FixturesFittingsToolsEquipmentNetBookValueOnHistoricalCostBasis" xlink:title="label: FixturesFittingsToolsEquipmentNetBookValueOnHistoricalCostBasis to label_FixturesFittingsToolsEquipmentNetBookValueOnHistoricalCostBasis"/>
    <label xlink:type="resource" xlink:label="label_FixturesFittingsToolsEquipmentNetBookValueOnHistoricalCostBasis_2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_FixturesFittingsToolsEquipmentNetBookValueOnHistoricalCostBasis" xml:lang="en" id="label_FixturesFittingsToolsEquipmentNetBookValueOnHistoricalCostBasis_2">Fixtures, fittings, tools and equipment, net book value on historical cost basis, end of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FixturesFittingsToolsEquipmentNetBookValueOnHistoricalCostBasis" xlink:to="label_FixturesFittingsToolsEquipmentNetBookValueOnHistoricalCostBasis_2" xlink:title="label: FixturesFittingsToolsEquipmentNetBookValueOnHistoricalCostBasis to label_FixturesFittingsToolsEquipmentNetBookValueOnHistoricalCostBasis"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FixturesFittingsToolsEquipmentReversalPastImpairments" xlink:label="FixturesFittingsToolsEquipmentReversalPastImpairments" xlink:title="FixturesFittingsToolsEquipmentReversalPastImpairments"/>
    <label xlink:type="resource" xlink:label="label_FixturesFittingsToolsEquipmentReversalPastImpairments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FixturesFittingsToolsEquipmentReversalPastImpairments" xml:lang="en" id="label_FixturesFittingsToolsEquipmentReversalPastImpairments">Fixtures, fittings, tools and equipment, reversal of past impairments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FixturesFittingsToolsEquipmentReversalPastImpairments" xlink:to="label_FixturesFittingsToolsEquipmentReversalPastImpairments" xlink:title="label: FixturesFittingsToolsEquipmentReversalPastImpairments to label_FixturesFittingsToolsEquipmentReversalPastImpairments"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_ForeignCurrentTaxOnIncomeForPeriod" xlink:label="ForeignCurrentTaxOnIncomeForPeriod" xlink:title="ForeignCurrentTaxOnIncomeForPeriod"/>
    <label xlink:type="resource" xlink:label="label_ForeignCurrentTaxOnIncomeForPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ForeignCurrentTaxOnIncomeForPeriod" xml:lang="en" id="label_ForeignCurrentTaxOnIncomeForPeriod">Foreign tax on income for the period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ForeignCurrentTaxOnIncomeForPeriod" xlink:to="label_ForeignCurrentTaxOnIncomeForPeriod" xlink:title="label: ForeignCurrentTaxOnIncomeForPeriod to label_ForeignCurrentTaxOnIncomeForPeriod"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FutureFinanceCharges" xlink:label="FutureFinanceCharges" xlink:title="FutureFinanceCharges"/>
    <label xlink:type="resource" xlink:label="label_FutureFinanceCharges" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FutureFinanceCharges" xml:lang="en" id="label_FutureFinanceCharges">Future finance charges</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FutureFinanceCharges" xlink:to="label_FutureFinanceCharges" xlink:title="label: FutureFinanceCharges to label_FutureFinanceCharges"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_GainLossFromDisposalFixedAssetsNet" xlink:label="GainLossFromDisposalFixedAssetsNet" xlink:title="GainLossFromDisposalFixedAssetsNet"/>
    <label xlink:type="resource" xlink:label="label_GainLossFromDisposalFixedAssetsNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GainLossFromDisposalFixedAssetsNet" xml:lang="en" id="label_GainLossFromDisposalFixedAssetsNet">Gain (loss) from disposal of fixed assets</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GainLossFromDisposalFixedAssetsNet" xlink:to="label_GainLossFromDisposalFixedAssetsNet" xlink:title="label: GainLossFromDisposalFixedAssetsNet to label_GainLossFromDisposalFixedAssetsNet"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_GainLossFromFundamentalRestructuringReorganisation" xlink:label="GainLossFromFundamentalRestructuringReorganisation" xlink:title="GainLossFromFundamentalRestructuringReorganisation"/>
    <label xlink:type="resource" xlink:label="label_GainLossFromFundamentalRestructuringReorganisation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GainLossFromFundamentalRestructuringReorganisation" xml:lang="en" id="label_GainLossFromFundamentalRestructuringReorganisation">Gain (loss) from restructuring and re-organisation</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GainLossFromFundamentalRestructuringReorganisation" xlink:to="label_GainLossFromFundamentalRestructuringReorganisation" xlink:title="label: GainLossFromFundamentalRestructuringReorganisation to label_GainLossFromFundamentalRestructuringReorganisation"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_GainsLossesFromExchangeAdjustmentsNet" xlink:label="GainsLossesFromExchangeAdjustmentsNet" xlink:title="GainsLossesFromExchangeAdjustmentsNet"/>
    <label xlink:type="resource" xlink:label="label_GainsLossesFromExchangeAdjustmentsNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GainsLossesFromExchangeAdjustmentsNet" xml:lang="en" id="label_GainsLossesFromExchangeAdjustmentsNet">Gain (loss) from exchange adjustments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GainsLossesFromExchangeAdjustmentsNet" xlink:to="label_GainsLossesFromExchangeAdjustmentsNet" xlink:title="label: GainsLossesFromExchangeAdjustmentsNet to label_GainsLossesFromExchangeAdjustmentsNet"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_GainsLossesFromExchangeAdjustmentsOtherAggregateReservesNet" xlink:label="GainsLossesFromExchangeAdjustmentsOtherAggregateReservesNet" xlink:title="GainsLossesFromExchangeAdjustmentsOtherAggregateReservesNet"/>
    <label xlink:type="resource" xlink:label="label_GainsLossesFromExchangeAdjustmentsOtherAggregateReservesNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GainsLossesFromExchangeAdjustmentsOtherAggregateReservesNet" xml:lang="en" id="label_GainsLossesFromExchangeAdjustmentsOtherAggregateReservesNet">Gain (loss) from exchange adjustments other aggregate reserves</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GainsLossesFromExchangeAdjustmentsOtherAggregateReservesNet" xlink:to="label_GainsLossesFromExchangeAdjustmentsOtherAggregateReservesNet" xlink:title="label: GainsLossesFromExchangeAdjustmentsOtherAggregateReservesNet to label_GainsLossesFromExchangeAdjustmentsOtherAggregateReservesNet"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_Goodwill" xlink:label="Goodwill" xlink:title="Goodwill"/>
    <label xlink:type="resource" xlink:label="label_Goodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_Goodwill" xml:lang="en" id="label_Goodwill">Purchased goodwill</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="Goodwill" xlink:to="label_Goodwill" xlink:title="label: Goodwill to label_Goodwill"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_GoodwillAdditions" xlink:label="GoodwillAdditions" xlink:title="GoodwillAdditions"/>
    <label xlink:type="resource" xlink:label="label_GoodwillAdditions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GoodwillAdditions" xml:lang="en" id="label_GoodwillAdditions">Purchased goodwill, additions</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GoodwillAdditions" xlink:to="label_GoodwillAdditions" xlink:title="label: GoodwillAdditions to label_GoodwillAdditions"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_GoodwillAggregateAmortisationImpairment" xlink:label="GoodwillAggregateAmortisationImpairment" xlink:title="GoodwillAggregateAmortisationImpairment"/>
    <label xlink:type="resource" xlink:label="label_GoodwillAggregateAmortisationImpairment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GoodwillAggregateAmortisationImpairment" xml:lang="en" id="label_GoodwillAggregateAmortisationImpairment">Positive goodwill, aggregate amortisation and impairment</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GoodwillAggregateAmortisationImpairment" xlink:to="label_GoodwillAggregateAmortisationImpairment" xlink:title="label: GoodwillAggregateAmortisationImpairment to label_GoodwillAggregateAmortisationImpairment"/>
    <label xlink:type="resource" xlink:label="label_GoodwillAggregateAmortisationImpairment_2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_GoodwillAggregateAmortisationImpairment" xml:lang="en" id="label_GoodwillAggregateAmortisationImpairment_2">Positive goodwill, aggregate amortisation and impairment, end of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GoodwillAggregateAmortisationImpairment" xlink:to="label_GoodwillAggregateAmortisationImpairment_2" xlink:title="label: GoodwillAggregateAmortisationImpairment to label_GoodwillAggregateAmortisationImpairment"/>
    <label xlink:type="resource" xlink:label="label_GoodwillAggregateAmortisationImpairment_3" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="label_GoodwillAggregateAmortisationImpairment" xml:lang="en" id="label_GoodwillAggregateAmortisationImpairment_3">Positive goodwill, aggregate amortisation and impairment, beginning of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GoodwillAggregateAmortisationImpairment" xlink:to="label_GoodwillAggregateAmortisationImpairment_3" xlink:title="label: GoodwillAggregateAmortisationImpairment to label_GoodwillAggregateAmortisationImpairment"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_GoodwillAmortisationChargedInPeriod" xlink:label="GoodwillAmortisationChargedInPeriod" xlink:title="GoodwillAmortisationChargedInPeriod"/>
    <label xlink:type="resource" xlink:label="label_GoodwillAmortisationChargedInPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GoodwillAmortisationChargedInPeriod" xml:lang="en" id="label_GoodwillAmortisationChargedInPeriod">Positive goodwill, amortisation charged in period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GoodwillAmortisationChargedInPeriod" xlink:to="label_GoodwillAmortisationChargedInPeriod" xlink:title="label: GoodwillAmortisationChargedInPeriod to label_GoodwillAmortisationChargedInPeriod"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_GoodwillAmortisationCreditedInPeriod" xlink:label="GoodwillAmortisationCreditedInPeriod" xlink:title="GoodwillAmortisationCreditedInPeriod"/>
    <label xlink:type="resource" xlink:label="label_GoodwillAmortisationCreditedInPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GoodwillAmortisationCreditedInPeriod" xml:lang="en" id="label_GoodwillAmortisationCreditedInPeriod">Positive goodwill, amortisation credited in period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GoodwillAmortisationCreditedInPeriod" xlink:to="label_GoodwillAmortisationCreditedInPeriod" xlink:title="label: GoodwillAmortisationCreditedInPeriod to label_GoodwillAmortisationCreditedInPeriod"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_GoodwillAmortisationImpairmentLosses" xlink:label="GoodwillAmortisationImpairmentLosses" xlink:title="GoodwillAmortisationImpairmentLosses"/>
    <label xlink:type="resource" xlink:label="label_GoodwillAmortisationImpairmentLosses" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GoodwillAmortisationImpairmentLosses" xml:lang="en" id="label_GoodwillAmortisationImpairmentLosses">Positive goodwill, impairment losses</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GoodwillAmortisationImpairmentLosses" xlink:to="label_GoodwillAmortisationImpairmentLosses" xlink:title="label: GoodwillAmortisationImpairmentLosses to label_GoodwillAmortisationImpairmentLosses"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_GoodwillAmortisationIncreaseDecreaseFromExchangeAdjustment" xlink:label="GoodwillAmortisationIncreaseDecreaseFromExchangeAdjustment" xlink:title="GoodwillAmortisationIncreaseDecreaseFromExchangeAdjustment"/>
    <label xlink:type="resource" xlink:label="label_GoodwillAmortisationIncreaseDecreaseFromExchangeAdjustment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GoodwillAmortisationIncreaseDecreaseFromExchangeAdjustment" xml:lang="en" id="label_GoodwillAmortisationIncreaseDecreaseFromExchangeAdjustment">Positive goodwill, amortisation, increase (decrease) from exchange adjustment</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GoodwillAmortisationIncreaseDecreaseFromExchangeAdjustment" xlink:to="label_GoodwillAmortisationIncreaseDecreaseFromExchangeAdjustment" xlink:title="label: GoodwillAmortisationIncreaseDecreaseFromExchangeAdjustment to label_GoodwillAmortisationIncreaseDecreaseFromExchangeAdjustment"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_GoodwillAmortisationIncreaseDecreaseFromTransfersBetweenItems" xlink:label="GoodwillAmortisationIncreaseDecreaseFromTransfersBetweenItems" xlink:title="GoodwillAmortisationIncreaseDecreaseFromTransfersBetweenItems"/>
    <label xlink:type="resource" xlink:label="label_GoodwillAmortisationIncreaseDecreaseFromTransfersBetweenItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GoodwillAmortisationIncreaseDecreaseFromTransfersBetweenItems" xml:lang="en" id="label_GoodwillAmortisationIncreaseDecreaseFromTransfersBetweenItems">Positive goodwill, amortisation, increase (decrease) from transfers between items</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GoodwillAmortisationIncreaseDecreaseFromTransfersBetweenItems" xlink:to="label_GoodwillAmortisationIncreaseDecreaseFromTransfersBetweenItems" xlink:title="label: GoodwillAmortisationIncreaseDecreaseFromTransfersBetweenItems to label_GoodwillAmortisationIncreaseDecreaseFromTransfersBetweenItems"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_GoodwillAmortisationOnDisposals" xlink:label="GoodwillAmortisationOnDisposals" xlink:title="GoodwillAmortisationOnDisposals"/>
    <label xlink:type="resource" xlink:label="label_GoodwillAmortisationOnDisposals" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GoodwillAmortisationOnDisposals" xml:lang="en" id="label_GoodwillAmortisationOnDisposals">Positive goodwill, amortisation on disposals</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GoodwillAmortisationOnDisposals" xlink:to="label_GoodwillAmortisationOnDisposals" xlink:title="label: GoodwillAmortisationOnDisposals to label_GoodwillAmortisationOnDisposals"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_GoodwillAmortisationReversalPastImpairments" xlink:label="GoodwillAmortisationReversalPastImpairments" xlink:title="GoodwillAmortisationReversalPastImpairments"/>
    <label xlink:type="resource" xlink:label="label_GoodwillAmortisationReversalPastImpairments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GoodwillAmortisationReversalPastImpairments" xml:lang="en" id="label_GoodwillAmortisationReversalPastImpairments">Positive goodwill, amortisation, reversal of past impairments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GoodwillAmortisationReversalPastImpairments" xlink:to="label_GoodwillAmortisationReversalPastImpairments" xlink:title="label: GoodwillAmortisationReversalPastImpairments to label_GoodwillAmortisationReversalPastImpairments"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_GoodwillCostOrValuation" xlink:label="GoodwillCostOrValuation" xlink:title="GoodwillCostOrValuation"/>
    <label xlink:type="resource" xlink:label="label_GoodwillCostOrValuation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GoodwillCostOrValuation" xml:lang="en" id="label_GoodwillCostOrValuation">Purchased goodwill, at cost or valuation</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GoodwillCostOrValuation" xlink:to="label_GoodwillCostOrValuation" xlink:title="label: GoodwillCostOrValuation to label_GoodwillCostOrValuation"/>
    <label xlink:type="resource" xlink:label="label_GoodwillCostOrValuation_2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_GoodwillCostOrValuation" xml:lang="en" id="label_GoodwillCostOrValuation_2">Purchased goodwill, at cost or valuation, end of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GoodwillCostOrValuation" xlink:to="label_GoodwillCostOrValuation_2" xlink:title="label: GoodwillCostOrValuation to label_GoodwillCostOrValuation"/>
    <label xlink:type="resource" xlink:label="label_GoodwillCostOrValuation_3" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="label_GoodwillCostOrValuation" xml:lang="en" id="label_GoodwillCostOrValuation_3">Purchased goodwill, at cost or valuation, beginning of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GoodwillCostOrValuation" xlink:to="label_GoodwillCostOrValuation_3" xlink:title="label: GoodwillCostOrValuation to label_GoodwillCostOrValuation"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_GoodwillDisposals" xlink:label="GoodwillDisposals" xlink:title="GoodwillDisposals"/>
    <label xlink:type="resource" xlink:label="label_GoodwillDisposals" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GoodwillDisposals" xml:lang="en" id="label_GoodwillDisposals">Purchased goodwill, disposals</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GoodwillDisposals" xlink:to="label_GoodwillDisposals" xlink:title="label: GoodwillDisposals to label_GoodwillDisposals"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_GoodwillImpairmentLosses" xlink:label="GoodwillImpairmentLosses" xlink:title="GoodwillImpairmentLosses"/>
    <label xlink:type="resource" xlink:label="label_GoodwillImpairmentLosses" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GoodwillImpairmentLosses" xml:lang="en" id="label_GoodwillImpairmentLosses">Purchased goodwill, impairment losses</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GoodwillImpairmentLosses" xlink:to="label_GoodwillImpairmentLosses" xlink:title="label: GoodwillImpairmentLosses to label_GoodwillImpairmentLosses"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_GoodwillIncreaseDecreaseFromExchangeAdjustment" xlink:label="GoodwillIncreaseDecreaseFromExchangeAdjustment" xlink:title="GoodwillIncreaseDecreaseFromExchangeAdjustment"/>
    <label xlink:type="resource" xlink:label="label_GoodwillIncreaseDecreaseFromExchangeAdjustment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GoodwillIncreaseDecreaseFromExchangeAdjustment" xml:lang="en" id="label_GoodwillIncreaseDecreaseFromExchangeAdjustment">Purchased goodwill, increase (decrease) from exchange adjustment</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GoodwillIncreaseDecreaseFromExchangeAdjustment" xlink:to="label_GoodwillIncreaseDecreaseFromExchangeAdjustment" xlink:title="label: GoodwillIncreaseDecreaseFromExchangeAdjustment to label_GoodwillIncreaseDecreaseFromExchangeAdjustment"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_GoodwillIncreaseDecreaseFromTransfersBetweenItems" xlink:label="GoodwillIncreaseDecreaseFromTransfersBetweenItems" xlink:title="GoodwillIncreaseDecreaseFromTransfersBetweenItems"/>
    <label xlink:type="resource" xlink:label="label_GoodwillIncreaseDecreaseFromTransfersBetweenItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GoodwillIncreaseDecreaseFromTransfersBetweenItems" xml:lang="en" id="label_GoodwillIncreaseDecreaseFromTransfersBetweenItems">Purchased goodwill, increase (decrease) from transfers between items</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GoodwillIncreaseDecreaseFromTransfersBetweenItems" xlink:to="label_GoodwillIncreaseDecreaseFromTransfersBetweenItems" xlink:title="label: GoodwillIncreaseDecreaseFromTransfersBetweenItems to label_GoodwillIncreaseDecreaseFromTransfersBetweenItems"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_GoodwillFinancialFixedAssetsInterestsInAssociatedUndertakings" xlink:label="GoodwillFinancialFixedAssetsInterestsInAssociatedUndertakings" xlink:title="GoodwillFinancialFixedAssetsInterestsInAssociatedUndertakings"/>
    <label xlink:type="resource" xlink:label="label_GoodwillFinancialFixedAssetsInterestsInAssociatedUndertakings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GoodwillFinancialFixedAssetsInterestsInAssociatedUndertakings" xml:lang="en" id="label_GoodwillFinancialFixedAssetsInterestsInAssociatedUndertakings">Goodwill, interests in associates</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GoodwillFinancialFixedAssetsInterestsInAssociatedUndertakings" xlink:to="label_GoodwillFinancialFixedAssetsInterestsInAssociatedUndertakings" xlink:title="label: GoodwillFinancialFixedAssetsInterestsInAssociatedUndertakings to label_GoodwillFinancialFixedAssetsInterestsInAssociatedUndertakings"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_GoodwillFinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakings" xlink:label="GoodwillFinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakings" xlink:title="GoodwillFinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakings"/>
    <label xlink:type="resource" xlink:label="label_GoodwillFinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GoodwillFinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakings" xml:lang="en" id="label_GoodwillFinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakings">Goodwill, interests in joint-ventures</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GoodwillFinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakings" xlink:to="label_GoodwillFinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakings" xlink:title="label: GoodwillFinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakings to label_GoodwillFinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakings"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_GoodwillMovementAnalysis" xlink:label="GoodwillMovementAnalysis" xlink:title="GoodwillMovementAnalysis"/>
    <label xlink:type="resource" xlink:label="label_GoodwillMovementAnalysis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GoodwillMovementAnalysis" xml:lang="en" id="label_GoodwillMovementAnalysis">Positive goodwill movements analysis</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GoodwillMovementAnalysis" xlink:to="label_GoodwillMovementAnalysis" xlink:title="label: GoodwillMovementAnalysis to label_GoodwillMovementAnalysis"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_GoodwillFinancialFixedAssetsSharesInParticipatingInterestUndertakings" xlink:label="GoodwillFinancialFixedAssetsSharesInParticipatingInterestUndertakings" xlink:title="GoodwillFinancialFixedAssetsSharesInParticipatingInterestUndertakings"/>
    <label xlink:type="resource" xlink:label="label_GoodwillFinancialFixedAssetsSharesInParticipatingInterestUndertakings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GoodwillFinancialFixedAssetsSharesInParticipatingInterestUndertakings" xml:lang="en" id="label_GoodwillFinancialFixedAssetsSharesInParticipatingInterestUndertakings">Goodwill, other participating interests</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GoodwillFinancialFixedAssetsSharesInParticipatingInterestUndertakings" xlink:to="label_GoodwillFinancialFixedAssetsSharesInParticipatingInterestUndertakings" xlink:title="label: GoodwillFinancialFixedAssetsSharesInParticipatingInterestUndertakings to label_GoodwillFinancialFixedAssetsSharesInParticipatingInterestUndertakings"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_GoodwillReversalPastImpairments" xlink:label="GoodwillReversalPastImpairments" xlink:title="GoodwillReversalPastImpairments"/>
    <label xlink:type="resource" xlink:label="label_GoodwillReversalPastImpairments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GoodwillReversalPastImpairments" xml:lang="en" id="label_GoodwillReversalPastImpairments">Purchased goodwill, reversal of past impairments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GoodwillReversalPastImpairments" xlink:to="label_GoodwillReversalPastImpairments" xlink:title="label: GoodwillReversalPastImpairments to label_GoodwillReversalPastImpairments"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_GoodwillFinancialFixedAssets" xlink:label="GoodwillFinancialFixedAssets" xlink:title="GoodwillFinancialFixedAssets"/>
    <label xlink:type="resource" xlink:label="label_GoodwillFinancialFixedAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GoodwillFinancialFixedAssets" xml:lang="en" id="label_GoodwillFinancialFixedAssets">Goodwill, financial fixed asset investments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GoodwillFinancialFixedAssets" xlink:to="label_GoodwillFinancialFixedAssets" xlink:title="label: GoodwillFinancialFixedAssets to label_GoodwillFinancialFixedAssets"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_GoodwillWrittenBack" xlink:label="GoodwillWrittenBack" xlink:title="GoodwillWrittenBack"/>
    <label xlink:type="resource" xlink:label="label_GoodwillWrittenBack" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GoodwillWrittenBack" xml:lang="en" id="label_GoodwillWrittenBack">Goodwill written back</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GoodwillWrittenBack" xlink:to="label_GoodwillWrittenBack" xlink:title="label: GoodwillWrittenBack to label_GoodwillWrittenBack"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_GovernmentGrants" xlink:label="GovernmentGrants" xlink:title="GovernmentGrants"/>
    <label xlink:type="resource" xlink:label="label_GovernmentGrants" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GovernmentGrants" xml:lang="en" id="label_GovernmentGrants">Government grants</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GovernmentGrants" xlink:to="label_GovernmentGrants" xlink:title="label: GovernmentGrants to label_GovernmentGrants"/>
    <label xlink:type="resource" xlink:label="label_GovernmentGrants_2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_GovernmentGrants" xml:lang="en" id="label_GovernmentGrants_2">Government grants at end of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GovernmentGrants" xlink:to="label_GovernmentGrants_2" xlink:title="label: GovernmentGrants to label_GovernmentGrants"/>
    <label xlink:type="resource" xlink:label="label_GovernmentGrants_3" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="label_GovernmentGrants" xml:lang="en" id="label_GovernmentGrants_3">Government grants at beginning of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GovernmentGrants" xlink:to="label_GovernmentGrants_3" xlink:title="label: GovernmentGrants to label_GovernmentGrants"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_GovernmentGrantsReceived" xlink:label="GovernmentGrantsReceived" xlink:title="GovernmentGrantsReceived"/>
    <label xlink:type="resource" xlink:label="label_GovernmentGrantsReceived" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GovernmentGrantsReceived" xml:lang="en" id="label_GovernmentGrantsReceived">Government grants received</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GovernmentGrantsReceived" xlink:to="label_GovernmentGrantsReceived" xlink:title="label: GovernmentGrantsReceived to label_GovernmentGrantsReceived"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_GovernmentSecuritiesListedOnExchangesOutsideIE" xlink:label="GovernmentSecuritiesListedOnExchangesOutsideIE" xlink:title="GovernmentSecuritiesListedOnExchangesOutsideIE"/>
    <label xlink:type="resource" xlink:label="label_GovernmentSecuritiesListedOnExchangesOutsideIE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GovernmentSecuritiesListedOnExchangesOutsideIE" xml:lang="en" id="label_GovernmentSecuritiesListedOnExchangesOutsideIE">Government securities listed on exchanges outside Ireland</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GovernmentSecuritiesListedOnExchangesOutsideIE" xlink:to="label_GovernmentSecuritiesListedOnExchangesOutsideIE" xlink:title="label: GovernmentSecuritiesListedOnExchangesOutsideIE to label_GovernmentSecuritiesListedOnExchangesOutsideIE"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_GovernmentSecuritiesListedOnIEExchanges" xlink:label="GovernmentSecuritiesListedOnIEExchanges" xlink:title="GovernmentSecuritiesListedOnIEExchanges"/>
    <label xlink:type="resource" xlink:label="label_GovernmentSecuritiesListedOnIEExchanges" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GovernmentSecuritiesListedOnIEExchanges" xml:lang="en" id="label_GovernmentSecuritiesListedOnIEExchanges">Government securities listed on Irish exchanges</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GovernmentSecuritiesListedOnIEExchanges" xlink:to="label_GovernmentSecuritiesListedOnIEExchanges" xlink:title="label: GovernmentSecuritiesListedOnIEExchanges to label_GovernmentSecuritiesListedOnIEExchanges"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_GrossPaymentsUnderFinanceLeasesHirePurchaseContracts" xlink:label="GrossPaymentsUnderFinanceLeasesHirePurchaseContracts" xlink:title="GrossPaymentsUnderFinanceLeasesHirePurchaseContracts"/>
    <label xlink:type="resource" xlink:label="label_GrossPaymentsUnderFinanceLeasesHirePurchaseContracts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GrossPaymentsUnderFinanceLeasesHirePurchaseContracts" xml:lang="en" id="label_GrossPaymentsUnderFinanceLeasesHirePurchaseContracts">Gross payments under finance leases and hire purchase contracts</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GrossPaymentsUnderFinanceLeasesHirePurchaseContracts" xlink:to="label_GrossPaymentsUnderFinanceLeasesHirePurchaseContracts" xlink:title="label: GrossPaymentsUnderFinanceLeasesHirePurchaseContracts to label_GrossPaymentsUnderFinanceLeasesHirePurchaseContracts"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_GrossProfitLoss" xlink:label="GrossProfitLoss" xlink:title="GrossProfitLoss"/>
    <label xlink:type="resource" xlink:label="label_GrossProfitLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GrossProfitLoss" xml:lang="en" id="label_GrossProfitLoss">Gross profit (loss)</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GrossProfitLoss" xlink:to="label_GrossProfitLoss" xlink:title="label: GrossProfitLoss to label_GrossProfitLoss"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_HistoricalCostDepreciationChargeLessActualDepreciationChargeCalculatedOnRevaluedAmount" xlink:label="HistoricalCostDepreciationChargeLessActualDepreciationChargeCalculatedOnRevaluedAmount" xlink:title="HistoricalCostDepreciationChargeLessActualDepreciationChargeCalculatedOnRevaluedAmount"/>
    <label xlink:type="resource" xlink:label="label_HistoricalCostDepreciationChargeLessActualDepreciationChargeCalculatedOnRevaluedAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_HistoricalCostDepreciationChargeLessActualDepreciationChargeCalculatedOnRevaluedAmount" xml:lang="en" id="label_HistoricalCostDepreciationChargeLessActualDepreciationChargeCalculatedOnRevaluedAmount">Historical cost depreciation charge less the actual depreciation charge calculated on the revalued amount</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="HistoricalCostDepreciationChargeLessActualDepreciationChargeCalculatedOnRevaluedAmount" xlink:to="label_HistoricalCostDepreciationChargeLessActualDepreciationChargeCalculatedOnRevaluedAmount" xlink:title="label: HistoricalCostDepreciationChargeLessActualDepreciationChargeCalculatedOnRevaluedAmount to label_HistoricalCostDepreciationChargeLessActualDepreciationChargeCalculatedOnRevaluedAmount"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_HistoricalCostProfitLossForPeriodRetainedAfterTaxationMinorityInterestsDividends" xlink:label="HistoricalCostProfitLossForPeriodRetainedAfterTaxationMinorityInterestsDividends" xlink:title="HistoricalCostProfitLossForPeriodRetainedAfterTaxationMinorityInterestsDividends"/>
    <label xlink:type="resource" xlink:label="label_HistoricalCostProfitLossForPeriodRetainedAfterTaxationMinorityInterestsDividends" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_HistoricalCostProfitLossForPeriodRetainedAfterTaxationMinorityInterestsDividends" xml:lang="en" id="label_HistoricalCostProfitLossForPeriodRetainedAfterTaxationMinorityInterestsDividends">Historical cost profit (loss) for the period retained after taxation, minority interests and dividends</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="HistoricalCostProfitLossForPeriodRetainedAfterTaxationMinorityInterestsDividends" xlink:to="label_HistoricalCostProfitLossForPeriodRetainedAfterTaxationMinorityInterestsDividends" xlink:title="label: HistoricalCostProfitLossForPeriodRetainedAfterTaxationMinorityInterestsDividends to label_HistoricalCostProfitLossForPeriodRetainedAfterTaxationMinorityInterestsDividends"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_HistoricalCostProfitLossOnOrdinaryActivitiesBeforeTaxation" xlink:label="HistoricalCostProfitLossOnOrdinaryActivitiesBeforeTaxation" xlink:title="HistoricalCostProfitLossOnOrdinaryActivitiesBeforeTaxation"/>
    <label xlink:type="resource" xlink:label="label_HistoricalCostProfitLossOnOrdinaryActivitiesBeforeTaxation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_HistoricalCostProfitLossOnOrdinaryActivitiesBeforeTaxation" xml:lang="en" id="label_HistoricalCostProfitLossOnOrdinaryActivitiesBeforeTaxation">Historical cost profit (loss) on ordinary activities before taxation</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="HistoricalCostProfitLossOnOrdinaryActivitiesBeforeTaxation" xlink:to="label_HistoricalCostProfitLossOnOrdinaryActivitiesBeforeTaxation" xlink:title="label: HistoricalCostProfitLossOnOrdinaryActivitiesBeforeTaxation to label_HistoricalCostProfitLossOnOrdinaryActivitiesBeforeTaxation"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_IECorporationTaxOnIncomeForPeriod" xlink:label="IECorporationTaxOnIncomeForPeriod" xlink:title="IECorporationTaxOnIncomeForPeriod"/>
    <label xlink:type="resource" xlink:label="label_IECorporationTaxOnIncomeForPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_IECorporationTaxOnIncomeForPeriod" xml:lang="en" id="label_IECorporationTaxOnIncomeForPeriod">Corporation tax on profits of the period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IECorporationTaxOnIncomeForPeriod" xlink:to="label_IECorporationTaxOnIncomeForPeriod" xlink:title="label: IECorporationTaxOnIncomeForPeriod to label_IECorporationTaxOnIncomeForPeriod"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_IECorporationTaxReliefArisingOnGainsLossesRecognisedInThisStatement" xlink:label="IECorporationTaxReliefArisingOnGainsLossesRecognisedInThisStatement" xlink:title="IECorporationTaxReliefArisingOnGainsLossesRecognisedInThisStatement"/>
    <label xlink:type="resource" xlink:label="label_IECorporationTaxReliefArisingOnGainsLossesRecognisedInThisStatement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_IECorporationTaxReliefArisingOnGainsLossesRecognisedInThisStatement" xml:lang="en" id="label_IECorporationTaxReliefArisingOnGainsLossesRecognisedInThisStatement">Corporation tax (relief) arising on gains and losses recognised in STRGL</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IECorporationTaxReliefArisingOnGainsLossesRecognisedInThisStatement" xlink:to="label_IECorporationTaxReliefArisingOnGainsLossesRecognisedInThisStatement" xlink:title="label: IECorporationTaxReliefArisingOnGainsLossesRecognisedInThisStatement to label_IECorporationTaxReliefArisingOnGainsLossesRecognisedInThisStatement"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_IncreaseDecreaseInAmountsChargedToMinorityInterestsExceptionalItems" xlink:label="IncreaseDecreaseInAmountsChargedToMinorityInterestsExceptionalItems" xlink:title="IncreaseDecreaseInAmountsChargedToMinorityInterestsExceptionalItems"/>
    <label xlink:type="resource" xlink:label="label_IncreaseDecreaseInAmountsChargedToMinorityInterestsExceptionalItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_IncreaseDecreaseInAmountsChargedToMinorityInterestsExceptionalItems" xml:lang="en" id="label_IncreaseDecreaseInAmountsChargedToMinorityInterestsExceptionalItems">Increase (decrease) in the amounts charged to minority interests, exceptional items</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInAmountsChargedToMinorityInterestsExceptionalItems" xlink:to="label_IncreaseDecreaseInAmountsChargedToMinorityInterestsExceptionalItems" xlink:title="label: IncreaseDecreaseInAmountsChargedToMinorityInterestsExceptionalItems to label_IncreaseDecreaseInAmountsChargedToMinorityInterestsExceptionalItems"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_IncomeStatement" xlink:label="IncomeStatement" xlink:title="IncomeStatement"/>
    <label xlink:type="resource" xlink:label="label_IncomeStatement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_IncomeStatement" xml:lang="en" id="label_IncomeStatement">Income statement</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncomeStatement" xlink:to="label_IncomeStatement" xlink:title="label: IncomeStatement to label_IncomeStatement"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_IncreaseDecreaseInCashBankInHandExcludingExchangeAdjustments" xlink:label="IncreaseDecreaseInCashBankInHandExcludingExchangeAdjustments" xlink:title="IncreaseDecreaseInCashBankInHandExcludingExchangeAdjustments"/>
    <label xlink:type="resource" xlink:label="label_IncreaseDecreaseInCashBankInHandExcludingExchangeAdjustments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_IncreaseDecreaseInCashBankInHandExcludingExchangeAdjustments" xml:lang="en" id="label_IncreaseDecreaseInCashBankInHandExcludingExchangeAdjustments">Increase (decrease) in cash at bank and in hand, excluding exchange adjustments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInCashBankInHandExcludingExchangeAdjustments" xlink:to="label_IncreaseDecreaseInCashBankInHandExcludingExchangeAdjustments" xlink:title="label: IncreaseDecreaseInCashBankInHandExcludingExchangeAdjustments to label_IncreaseDecreaseInCashBankInHandExcludingExchangeAdjustments"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_IncreaseDecreaseInBankOverdraftsExcludingExchangeAdjustments" xlink:label="IncreaseDecreaseInBankOverdraftsExcludingExchangeAdjustments" xlink:title="IncreaseDecreaseInBankOverdraftsExcludingExchangeAdjustments"/>
    <label xlink:type="resource" xlink:label="label_IncreaseDecreaseInBankOverdraftsExcludingExchangeAdjustments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_IncreaseDecreaseInBankOverdraftsExcludingExchangeAdjustments" xml:lang="en" id="label_IncreaseDecreaseInBankOverdraftsExcludingExchangeAdjustments">Increase (decrease) in bank overdrafts, excluding exchange adjustments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInBankOverdraftsExcludingExchangeAdjustments" xlink:to="label_IncreaseDecreaseInBankOverdraftsExcludingExchangeAdjustments" xlink:title="label: IncreaseDecreaseInBankOverdraftsExcludingExchangeAdjustments to label_IncreaseDecreaseInBankOverdraftsExcludingExchangeAdjustments"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_IncreaseDecreaseInCashBankInHandFromExchangeAdjustments" xlink:label="IncreaseDecreaseInCashBankInHandFromExchangeAdjustments" xlink:title="IncreaseDecreaseInCashBankInHandFromExchangeAdjustments"/>
    <label xlink:type="resource" xlink:label="label_IncreaseDecreaseInCashBankInHandFromExchangeAdjustments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_IncreaseDecreaseInCashBankInHandFromExchangeAdjustments" xml:lang="en" id="label_IncreaseDecreaseInCashBankInHandFromExchangeAdjustments">Increase (decrease) in cash at bank and in hand from exchange adjustments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInCashBankInHandFromExchangeAdjustments" xlink:to="label_IncreaseDecreaseInCashBankInHandFromExchangeAdjustments" xlink:title="label: IncreaseDecreaseInCashBankInHandFromExchangeAdjustments to label_IncreaseDecreaseInCashBankInHandFromExchangeAdjustments"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_IncreaseDecreaseInBankOverdraftsFromExchangeAdjustments" xlink:label="IncreaseDecreaseInBankOverdraftsFromExchangeAdjustments" xlink:title="IncreaseDecreaseInBankOverdraftsFromExchangeAdjustments"/>
    <label xlink:type="resource" xlink:label="label_IncreaseDecreaseInBankOverdraftsFromExchangeAdjustments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_IncreaseDecreaseInBankOverdraftsFromExchangeAdjustments" xml:lang="en" id="label_IncreaseDecreaseInBankOverdraftsFromExchangeAdjustments">Increase (decrease) in bank overdrafts from exchange adjustments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInBankOverdraftsFromExchangeAdjustments" xlink:to="label_IncreaseDecreaseInBankOverdraftsFromExchangeAdjustments" xlink:title="label: IncreaseDecreaseInBankOverdraftsFromExchangeAdjustments to label_IncreaseDecreaseInBankOverdraftsFromExchangeAdjustments"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_IncreaseDecreaseInCreditors" xlink:label="IncreaseDecreaseInCreditors" xlink:title="IncreaseDecreaseInCreditors"/>
    <label xlink:type="resource" xlink:label="label_IncreaseDecreaseInCreditors" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_IncreaseDecreaseInCreditors" xml:lang="en" id="label_IncreaseDecreaseInCreditors">Increase (decrease) in creditors</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInCreditors" xlink:to="label_IncreaseDecreaseInCreditors" xlink:title="label: IncreaseDecreaseInCreditors to label_IncreaseDecreaseInCreditors"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_IncreaseDecreaseInCurrentAssetInvestmentsFromAcquisitionsDisposals" xlink:label="IncreaseDecreaseInCurrentAssetInvestmentsFromAcquisitionsDisposals" xlink:title="IncreaseDecreaseInCurrentAssetInvestmentsFromAcquisitionsDisposals"/>
    <label xlink:type="resource" xlink:label="label_IncreaseDecreaseInCurrentAssetInvestmentsFromAcquisitionsDisposals" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_IncreaseDecreaseInCurrentAssetInvestmentsFromAcquisitionsDisposals" xml:lang="en" id="label_IncreaseDecreaseInCurrentAssetInvestmentsFromAcquisitionsDisposals">Increase (decrease) in current asset investments from acquisitions and disposals</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInCurrentAssetInvestmentsFromAcquisitionsDisposals" xlink:to="label_IncreaseDecreaseInCurrentAssetInvestmentsFromAcquisitionsDisposals" xlink:title="label: IncreaseDecreaseInCurrentAssetInvestmentsFromAcquisitionsDisposals to label_IncreaseDecreaseInCurrentAssetInvestmentsFromAcquisitionsDisposals"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_IncreaseDecreaseInCurrentAssetInvestmentsFromExchangeAdjustments" xlink:label="IncreaseDecreaseInCurrentAssetInvestmentsFromExchangeAdjustments" xlink:title="IncreaseDecreaseInCurrentAssetInvestmentsFromExchangeAdjustments"/>
    <label xlink:type="resource" xlink:label="label_IncreaseDecreaseInCurrentAssetInvestmentsFromExchangeAdjustments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_IncreaseDecreaseInCurrentAssetInvestmentsFromExchangeAdjustments" xml:lang="en" id="label_IncreaseDecreaseInCurrentAssetInvestmentsFromExchangeAdjustments">Increase (decrease) in current asset investments from exchange adjustments</label>
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    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_IncreaseDecreaseInShareholdersFundsFromPriorYearAdjustment" xlink:label="IncreaseDecreaseInShareholdersFundsFromPriorYearAdjustment" xlink:title="IncreaseDecreaseInShareholdersFundsFromPriorYearAdjustment"/>
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    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_IndividualDisposal" xlink:label="IndividualDisposal" xlink:title="IndividualDisposal"/>
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    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_IntangibleFixedAssetsAmortisationCreditedInPeriod" xlink:label="IntangibleFixedAssetsAmortisationCreditedInPeriod" xlink:title="IntangibleFixedAssetsAmortisationCreditedInPeriod"/>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IntangibleFixedAssetsAmortisationIncreaseDecreaseFromTransfersBetweenItems" xlink:to="label_IntangibleFixedAssetsAmortisationIncreaseDecreaseFromTransfersBetweenItems" xlink:title="label: IntangibleFixedAssetsAmortisationIncreaseDecreaseFromTransfersBetweenItems to label_IntangibleFixedAssetsAmortisationIncreaseDecreaseFromTransfersBetweenItems"/>
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    <label xlink:type="resource" xlink:label="label_IntangibleFixedAssetsCostOrValuation_2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_IntangibleFixedAssetsCostOrValuation" xml:lang="en" id="label_IntangibleFixedAssetsCostOrValuation_2">Intangible fixed assets, at cost or valuation, end of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IntangibleFixedAssetsCostOrValuation" xlink:to="label_IntangibleFixedAssetsCostOrValuation_2" xlink:title="label: IntangibleFixedAssetsCostOrValuation to label_IntangibleFixedAssetsCostOrValuation"/>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IntangibleFixedAssetsCostOrValuation" xlink:to="label_IntangibleFixedAssetsCostOrValuation_3" xlink:title="label: IntangibleFixedAssetsCostOrValuation to label_IntangibleFixedAssetsCostOrValuation"/>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IntangibleFixedAssetsDisposals" xlink:to="label_IntangibleFixedAssetsDisposals" xlink:title="label: IntangibleFixedAssetsDisposals to label_IntangibleFixedAssetsDisposals"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_IntangibleFixedAssetsIncreaseDecreaseFromExchangeAdjustment" xlink:label="IntangibleFixedAssetsIncreaseDecreaseFromExchangeAdjustment" xlink:title="IntangibleFixedAssetsIncreaseDecreaseFromExchangeAdjustment"/>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IntangibleFixedAssetsIncreaseDecreaseFromExchangeAdjustment" xlink:to="label_IntangibleFixedAssetsIncreaseDecreaseFromExchangeAdjustment" xlink:title="label: IntangibleFixedAssetsIncreaseDecreaseFromExchangeAdjustment to label_IntangibleFixedAssetsIncreaseDecreaseFromExchangeAdjustment"/>
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    <label xlink:type="resource" xlink:label="label_IntangibleFixedAssetsIncreaseDecreaseFromTransfersBetweenItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_IntangibleFixedAssetsIncreaseDecreaseFromTransfersBetweenItems" xml:lang="en" id="label_IntangibleFixedAssetsIncreaseDecreaseFromTransfersBetweenItems">Intangible fixed assets, increase (decrease) from transfers between items</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IntangibleFixedAssetsIncreaseDecreaseFromTransfersBetweenItems" xlink:to="label_IntangibleFixedAssetsIncreaseDecreaseFromTransfersBetweenItems" xlink:title="label: IntangibleFixedAssetsIncreaseDecreaseFromTransfersBetweenItems to label_IntangibleFixedAssetsIncreaseDecreaseFromTransfersBetweenItems"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_InterestElementFinanceLeaseRentalPayments" xlink:label="InterestElementFinanceLeaseRentalPayments" xlink:title="InterestElementFinanceLeaseRentalPayments"/>
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    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_InterestOtherInvestmentIncomeReceived" xlink:label="InterestOtherInvestmentIncomeReceived" xlink:title="InterestOtherInvestmentIncomeReceived"/>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinancialFixedAssetsInterestsInAssociatedUndertakingsAdditions" xlink:to="label_FinancialFixedAssetsInterestsInAssociatedUndertakingsAdditions" xlink:title="label: FinancialFixedAssetsInterestsInAssociatedUndertakingsAdditions to label_FinancialFixedAssetsInterestsInAssociatedUndertakingsAdditions"/>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinancialFixedAssetsInterestsInAssociatedUndertakings" xlink:to="label_FinancialFixedAssetsInterestsInAssociatedUndertakings" xlink:title="label: FinancialFixedAssetsInterestsInAssociatedUndertakings to label_FinancialFixedAssetsInterestsInAssociatedUndertakings"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FinancialFixedAssetsInterestsInAssociatedUndertakingsCostOrValuation" xlink:label="FinancialFixedAssetsInterestsInAssociatedUndertakingsCostOrValuation" xlink:title="FinancialFixedAssetsInterestsInAssociatedUndertakingsCostOrValuation"/>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinancialFixedAssetsInterestsInAssociatedUndertakingsCostOrValuation" xlink:to="label_FinancialFixedAssetsInterestsInAssociatedUndertakingsCostOrValuation" xlink:title="label: FinancialFixedAssetsInterestsInAssociatedUndertakingsCostOrValuation to label_FinancialFixedAssetsInterestsInAssociatedUndertakingsCostOrValuation"/>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinancialFixedAssetsInterestsInAssociatedUndertakingsCostOrValuation" xlink:to="label_FinancialFixedAssetsInterestsInAssociatedUndertakingsCostOrValuation_2" xlink:title="label: FinancialFixedAssetsInterestsInAssociatedUndertakingsCostOrValuation to label_FinancialFixedAssetsInterestsInAssociatedUndertakingsCostOrValuation"/>
    <label xlink:type="resource" xlink:label="label_FinancialFixedAssetsInterestsInAssociatedUndertakingsCostOrValuation_3" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="label_FinancialFixedAssetsInterestsInAssociatedUndertakingsCostOrValuation" xml:lang="en" id="label_FinancialFixedAssetsInterestsInAssociatedUndertakingsCostOrValuation_3">Interests in associates, at cost or valuation, beginning of period</label>
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    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsProvisionsIncreaseDecreaseFromTransfersBetweenItems" xlink:label="FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsProvisionsIncreaseDecreaseFromTransfersBetweenItems" xlink:title="FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsProvisionsIncreaseDecreaseFromTransfersBetweenItems"/>
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    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsProvisionsProvidedInPeriod" xlink:label="FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsProvisionsProvidedInPeriod" xlink:title="FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsProvisionsProvidedInPeriod"/>
    <label xlink:type="resource" xlink:label="label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsProvisionsProvidedInPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsProvisionsProvidedInPeriod" xml:lang="en" id="label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsProvisionsProvidedInPeriod">Interests in joint-ventures, provisions, provided in period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsProvisionsProvidedInPeriod" xlink:to="label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsProvisionsProvidedInPeriod" xlink:title="label: FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsProvisionsProvidedInPeriod to label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsProvisionsProvidedInPeriod"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsProvisionsReversalPastImpairmentsAmountsWrittenBack" xlink:label="FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsProvisionsReversalPastImpairmentsAmountsWrittenBack" xlink:title="FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsProvisionsReversalPastImpairmentsAmountsWrittenBack"/>
    <label xlink:type="resource" xlink:label="label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsProvisionsReversalPastImpairmentsAmountsWrittenBack" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsProvisionsReversalPastImpairmentsAmountsWrittenBack" xml:lang="en" id="label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsProvisionsReversalPastImpairmentsAmountsWrittenBack">Interests in joint-ventures, provisions, reversal of past impairments / amounts written back</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsProvisionsReversalPastImpairmentsAmountsWrittenBack" xlink:to="label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsProvisionsReversalPastImpairmentsAmountsWrittenBack" xlink:title="label: FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsProvisionsReversalPastImpairmentsAmountsWrittenBack to label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsProvisionsReversalPastImpairmentsAmountsWrittenBack"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsReservesDisposals" xlink:label="FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsReservesDisposals" xlink:title="FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsReservesDisposals"/>
    <label xlink:type="resource" xlink:label="label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsReservesDisposals" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsReservesDisposals" xml:lang="en" id="label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsReservesDisposals">Interests in joint-ventures, disposals (reserves)</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsReservesDisposals" xlink:to="label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsReservesDisposals" xlink:title="label: FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsReservesDisposals to label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsReservesDisposals"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsReservesIncreaseDecreaseFromTransfersBetweenItems" xlink:label="FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsReservesIncreaseDecreaseFromTransfersBetweenItems" xlink:title="FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsReservesIncreaseDecreaseFromTransfersBetweenItems"/>
    <label xlink:type="resource" xlink:label="label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsReservesIncreaseDecreaseFromTransfersBetweenItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsReservesIncreaseDecreaseFromTransfersBetweenItems" xml:lang="en" id="label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsReservesIncreaseDecreaseFromTransfersBetweenItems">Interests in joint-ventures, reserves, increase (decrease) from transfers between items (reserves)</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsReservesIncreaseDecreaseFromTransfersBetweenItems" xlink:to="label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsReservesIncreaseDecreaseFromTransfersBetweenItems" xlink:title="label: FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsReservesIncreaseDecreaseFromTransfersBetweenItems to label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsReservesIncreaseDecreaseFromTransfersBetweenItems"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsRetainedProfitsLessLosses" xlink:label="FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsRetainedProfitsLessLosses" xlink:title="FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsRetainedProfitsLessLosses"/>
    <label xlink:type="resource" xlink:label="label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsRetainedProfitsLessLosses" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsRetainedProfitsLessLosses" xml:lang="en" id="label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsRetainedProfitsLessLosses">Interests in joint-ventures, retained profits less losses</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsRetainedProfitsLessLosses" xlink:to="label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsRetainedProfitsLessLosses" xlink:title="label: FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsRetainedProfitsLessLosses to label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsRetainedProfitsLessLosses"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsReversalPastImpairmentsAmountsWrittenBack" xlink:label="FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsReversalPastImpairmentsAmountsWrittenBack" xlink:title="FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsReversalPastImpairmentsAmountsWrittenBack"/>
    <label xlink:type="resource" xlink:label="label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsReversalPastImpairmentsAmountsWrittenBack" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsReversalPastImpairmentsAmountsWrittenBack" xml:lang="en" id="label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsReversalPastImpairmentsAmountsWrittenBack">Interests in joint-ventures, reversal of past impairments / amounts written back</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsReversalPastImpairmentsAmountsWrittenBack" xlink:to="label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsReversalPastImpairmentsAmountsWrittenBack" xlink:title="label: FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsReversalPastImpairmentsAmountsWrittenBack to label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsReversalPastImpairmentsAmountsWrittenBack"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsSharePostacquisitionReserves" xlink:label="FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsSharePostacquisitionReserves" xlink:title="FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsSharePostacquisitionReserves"/>
    <label xlink:type="resource" xlink:label="label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsSharePostacquisitionReserves" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsSharePostacquisitionReserves" xml:lang="en" id="label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsSharePostacquisitionReserves">Interests in joint-ventures, share of post acquisition reserves</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsSharePostacquisitionReserves" xlink:to="label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsSharePostacquisitionReserves" xlink:title="label: FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsSharePostacquisitionReserves to label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsSharePostacquisitionReserves"/>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsSharePostacquisitionReserves" xlink:to="label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsSharePostacquisitionReserves_2" xlink:title="label: FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsSharePostacquisitionReserves to label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsSharePostacquisitionReserves"/>
    <label xlink:type="resource" xlink:label="label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsSharePostacquisitionReserves_3" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsSharePostacquisitionReserves" xml:lang="en" id="label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsSharePostacquisitionReserves_3">Interests in joint-ventures, share of post acquisition reserves, beginning of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsSharePostacquisitionReserves" xlink:to="label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsSharePostacquisitionReserves_3" xlink:title="label: FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsSharePostacquisitionReserves to label_FinancialFixedAssetsInterestsInOtherParticipatingInterestUndertakingsSharePostacquisitionReserves"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_InvestmentIncomeNet" xlink:label="InvestmentIncomeNet" xlink:title="InvestmentIncomeNet"/>
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    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_InvestmentInTermDeposits" xlink:label="InvestmentInTermDeposits" xlink:title="InvestmentInTermDeposits"/>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentInTermDeposits" xlink:to="label_InvestmentInTermDeposits" xlink:title="label: InvestmentInTermDeposits to label_InvestmentInTermDeposits"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_InvestmentPropertiesAdditions" xlink:label="InvestmentPropertiesAdditions" xlink:title="InvestmentPropertiesAdditions"/>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentPropertiesAdditions" xlink:to="label_InvestmentPropertiesAdditions" xlink:title="label: InvestmentPropertiesAdditions to label_InvestmentPropertiesAdditions"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_InvestmentPropertiesCostOrValuation" xlink:label="InvestmentPropertiesCostOrValuation" xlink:title="InvestmentPropertiesCostOrValuation"/>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentPropertiesCostOrValuation" xlink:to="label_InvestmentPropertiesCostOrValuation" xlink:title="label: InvestmentPropertiesCostOrValuation to label_InvestmentPropertiesCostOrValuation"/>
    <label xlink:type="resource" xlink:label="label_InvestmentPropertiesCostOrValuation_2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_InvestmentPropertiesCostOrValuation" xml:lang="en" id="label_InvestmentPropertiesCostOrValuation_2">Investment properties, at cost or valuation, end of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentPropertiesCostOrValuation" xlink:to="label_InvestmentPropertiesCostOrValuation_2" xlink:title="label: InvestmentPropertiesCostOrValuation to label_InvestmentPropertiesCostOrValuation"/>
    <label xlink:type="resource" xlink:label="label_InvestmentPropertiesCostOrValuation_3" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="label_InvestmentPropertiesCostOrValuation" xml:lang="en" id="label_InvestmentPropertiesCostOrValuation_3">Investment properties, at cost or valuation, beginning of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentPropertiesCostOrValuation" xlink:to="label_InvestmentPropertiesCostOrValuation_3" xlink:title="label: InvestmentPropertiesCostOrValuation to label_InvestmentPropertiesCostOrValuation"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_InvestmentPropertiesDisposals" xlink:label="InvestmentPropertiesDisposals" xlink:title="InvestmentPropertiesDisposals"/>
    <label xlink:type="resource" xlink:label="label_InvestmentPropertiesDisposals" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_InvestmentPropertiesDisposals" xml:lang="en" id="label_InvestmentPropertiesDisposals">Investment properties, disposals</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentPropertiesDisposals" xlink:to="label_InvestmentPropertiesDisposals" xlink:title="label: InvestmentPropertiesDisposals to label_InvestmentPropertiesDisposals"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_InvestmentPropertiesImpairmentLosses" xlink:label="InvestmentPropertiesImpairmentLosses" xlink:title="InvestmentPropertiesImpairmentLosses"/>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentPropertiesImpairmentLosses" xlink:to="label_InvestmentPropertiesImpairmentLosses" xlink:title="label: InvestmentPropertiesImpairmentLosses to label_InvestmentPropertiesImpairmentLosses"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_InvestmentPropertiesIncreaseDecreaseFromExchangeAdjustments" xlink:label="InvestmentPropertiesIncreaseDecreaseFromExchangeAdjustments" xlink:title="InvestmentPropertiesIncreaseDecreaseFromExchangeAdjustments"/>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentPropertiesIncreaseDecreaseFromExchangeAdjustments" xlink:to="label_InvestmentPropertiesIncreaseDecreaseFromExchangeAdjustments" xlink:title="label: InvestmentPropertiesIncreaseDecreaseFromExchangeAdjustments to label_InvestmentPropertiesIncreaseDecreaseFromExchangeAdjustments"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_InvestmentPropertiesIncreaseDecreaseFromRevaluations" xlink:label="InvestmentPropertiesIncreaseDecreaseFromRevaluations" xlink:title="InvestmentPropertiesIncreaseDecreaseFromRevaluations"/>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentPropertiesIncreaseDecreaseFromRevaluations" xlink:to="label_InvestmentPropertiesIncreaseDecreaseFromRevaluations" xlink:title="label: InvestmentPropertiesIncreaseDecreaseFromRevaluations to label_InvestmentPropertiesIncreaseDecreaseFromRevaluations"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_InvestmentPropertiesIncreaseDecreaseFromTransfersBetweenItems" xlink:label="InvestmentPropertiesIncreaseDecreaseFromTransfersBetweenItems" xlink:title="InvestmentPropertiesIncreaseDecreaseFromTransfersBetweenItems"/>
    <label xlink:type="resource" xlink:label="label_InvestmentPropertiesIncreaseDecreaseFromTransfersBetweenItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_InvestmentPropertiesIncreaseDecreaseFromTransfersBetweenItems" xml:lang="en" id="label_InvestmentPropertiesIncreaseDecreaseFromTransfersBetweenItems">Investment properties, increase (decrease) from transfers between items</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentPropertiesIncreaseDecreaseFromTransfersBetweenItems" xlink:to="label_InvestmentPropertiesIncreaseDecreaseFromTransfersBetweenItems" xlink:title="label: InvestmentPropertiesIncreaseDecreaseFromTransfersBetweenItems to label_InvestmentPropertiesIncreaseDecreaseFromTransfersBetweenItems"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_InvestmentPropertiesNetBookValueOnHistoricalCostBasis" xlink:label="InvestmentPropertiesNetBookValueOnHistoricalCostBasis" xlink:title="InvestmentPropertiesNetBookValueOnHistoricalCostBasis"/>
    <label xlink:type="resource" xlink:label="label_InvestmentPropertiesNetBookValueOnHistoricalCostBasis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_InvestmentPropertiesNetBookValueOnHistoricalCostBasis" xml:lang="en" id="label_InvestmentPropertiesNetBookValueOnHistoricalCostBasis">Investment properties, net book value on historical cost basis</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentPropertiesNetBookValueOnHistoricalCostBasis" xlink:to="label_InvestmentPropertiesNetBookValueOnHistoricalCostBasis" xlink:title="label: InvestmentPropertiesNetBookValueOnHistoricalCostBasis to label_InvestmentPropertiesNetBookValueOnHistoricalCostBasis"/>
    <label xlink:type="resource" xlink:label="label_InvestmentPropertiesNetBookValueOnHistoricalCostBasis_2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_InvestmentPropertiesNetBookValueOnHistoricalCostBasis" xml:lang="en" id="label_InvestmentPropertiesNetBookValueOnHistoricalCostBasis_2">Investment properties, net book value on historical cost basis, end of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentPropertiesNetBookValueOnHistoricalCostBasis" xlink:to="label_InvestmentPropertiesNetBookValueOnHistoricalCostBasis_2" xlink:title="label: InvestmentPropertiesNetBookValueOnHistoricalCostBasis to label_InvestmentPropertiesNetBookValueOnHistoricalCostBasis"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_InvestmentPropertiesReversalPastImpairments" xlink:label="InvestmentPropertiesReversalPastImpairments" xlink:title="InvestmentPropertiesReversalPastImpairments"/>
    <label xlink:type="resource" xlink:label="label_InvestmentPropertiesReversalPastImpairments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_InvestmentPropertiesReversalPastImpairments" xml:lang="en" id="label_InvestmentPropertiesReversalPastImpairments">Investment properties, reversal of past impairments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentPropertiesReversalPastImpairments" xlink:to="label_InvestmentPropertiesReversalPastImpairments" xlink:title="label: InvestmentPropertiesReversalPastImpairments to label_InvestmentPropertiesReversalPastImpairments"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_InvestmentsCurrentAssets" xlink:label="InvestmentsCurrentAssets" xlink:title="InvestmentsCurrentAssets"/>
    <label xlink:type="resource" xlink:label="label_InvestmentsCurrentAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_InvestmentsCurrentAssets" xml:lang="en" id="label_InvestmentsCurrentAssets">Investments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentsCurrentAssets" xlink:to="label_InvestmentsCurrentAssets" xlink:title="label: InvestmentsCurrentAssets to label_InvestmentsCurrentAssets"/>
    <label xlink:type="resource" xlink:label="label_InvestmentsCurrentAssets_2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_InvestmentsCurrentAssets" xml:lang="en" id="label_InvestmentsCurrentAssets_2">Investments, end of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentsCurrentAssets" xlink:to="label_InvestmentsCurrentAssets_2" xlink:title="label: InvestmentsCurrentAssets to label_InvestmentsCurrentAssets"/>
    <label xlink:type="resource" xlink:label="label_InvestmentsCurrentAssets_3" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="label_InvestmentsCurrentAssets" xml:lang="en" id="label_InvestmentsCurrentAssets_3">Investments, beginning of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentsCurrentAssets" xlink:to="label_InvestmentsCurrentAssets_3" xlink:title="label: InvestmentsCurrentAssets to label_InvestmentsCurrentAssets"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_InvestmentsCurrentAssetsAnalysis" xlink:label="InvestmentsCurrentAssetsAnalysis" xlink:title="InvestmentsCurrentAssetsAnalysis"/>
    <label xlink:type="resource" xlink:label="label_InvestmentsCurrentAssetsAnalysis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_InvestmentsCurrentAssetsAnalysis" xml:lang="en" id="label_InvestmentsCurrentAssetsAnalysis">Current financial assets</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentsCurrentAssetsAnalysis" xlink:to="label_InvestmentsCurrentAssetsAnalysis" xlink:title="label: InvestmentsCurrentAssetsAnalysis to label_InvestmentsCurrentAssetsAnalysis"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_InvestmentsListedOnExchangesOutsideIE" xlink:label="InvestmentsListedOnExchangesOutsideIE" xlink:title="InvestmentsListedOnExchangesOutsideIE"/>
    <label xlink:type="resource" xlink:label="label_InvestmentsListedOnExchangesOutsideIE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_InvestmentsListedOnExchangesOutsideIE" xml:lang="en" id="label_InvestmentsListedOnExchangesOutsideIE">Investments listed on exchanges outside Ireland</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentsListedOnExchangesOutsideIE" xlink:to="label_InvestmentsListedOnExchangesOutsideIE" xlink:title="label: InvestmentsListedOnExchangesOutsideIE to label_InvestmentsListedOnExchangesOutsideIE"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_InvestmentsListedOnIEExchanges" xlink:label="InvestmentsListedOnIEExchanges" xlink:title="InvestmentsListedOnIEExchanges"/>
    <label xlink:type="resource" xlink:label="label_InvestmentsListedOnIEExchanges" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_InvestmentsListedOnIEExchanges" xml:lang="en" id="label_InvestmentsListedOnIEExchanges">Investments listed on Irish exchanges</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentsListedOnIEExchanges" xlink:to="label_InvestmentsListedOnIEExchanges" xlink:title="label: InvestmentsListedOnIEExchanges to label_InvestmentsListedOnIEExchanges"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LandBuildings" xlink:label="LandBuildings" xlink:title="LandBuildings"/>
    <label xlink:type="resource" xlink:label="label_LandBuildings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LandBuildings" xml:lang="en" id="label_LandBuildings">Land and buildings</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildings" xlink:to="label_LandBuildings" xlink:title="label: LandBuildings to label_LandBuildings"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LandBuildingsCost" xlink:label="LandBuildingsCost" xlink:title="LandBuildingsCost"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsCost" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LandBuildingsCost" xml:lang="en" id="label_LandBuildingsCost">Land and buildings at cost</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsCost" xlink:to="label_LandBuildingsCost" xlink:title="label: LandBuildingsCost to label_LandBuildingsCost"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LandBuildingsCostOrValuationAnalysis" xlink:label="LandBuildingsCostOrValuationAnalysis" xlink:title="LandBuildingsCostOrValuationAnalysis"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsCostOrValuationAnalysis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LandBuildingsCostOrValuationAnalysis" xml:lang="en" id="label_LandBuildingsCostOrValuationAnalysis">Land and buildings, cost or valuation</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsCostOrValuationAnalysis" xlink:to="label_LandBuildingsCostOrValuationAnalysis" xlink:title="label: LandBuildingsCostOrValuationAnalysis to label_LandBuildingsCostOrValuationAnalysis"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LandBuildingsAcquisitions" xlink:label="LandBuildingsAcquisitions" xlink:title="LandBuildingsAcquisitions"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsAcquisitions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LandBuildingsAcquisitions" xml:lang="en" id="label_LandBuildingsAcquisitions">Land and buildings, acquisitions</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsAcquisitions" xlink:to="label_LandBuildingsAcquisitions" xlink:title="label: LandBuildingsAcquisitions to label_LandBuildingsAcquisitions"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LandBuildingsAdditions" xlink:label="LandBuildingsAdditions" xlink:title="LandBuildingsAdditions"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsAdditions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LandBuildingsAdditions" xml:lang="en" id="label_LandBuildingsAdditions">Land and buildings, additions</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsAdditions" xlink:to="label_LandBuildingsAdditions" xlink:title="label: LandBuildingsAdditions to label_LandBuildingsAdditions"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LandBuildingsAnalysis" xlink:label="LandBuildingsAnalysis" xlink:title="LandBuildingsAnalysis"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsAnalysis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LandBuildingsAnalysis" xml:lang="en" id="label_LandBuildingsAnalysis">Land and buildings movements analysis</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsAnalysis" xlink:to="label_LandBuildingsAnalysis" xlink:title="label: LandBuildingsAnalysis to label_LandBuildingsAnalysis"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LandBuildingsCostOrValuation" xlink:label="LandBuildingsCostOrValuation" xlink:title="LandBuildingsCostOrValuation"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsCostOrValuation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LandBuildingsCostOrValuation" xml:lang="en" id="label_LandBuildingsCostOrValuation">Land and buildings, at cost or valuation</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsCostOrValuation" xlink:to="label_LandBuildingsCostOrValuation" xlink:title="label: LandBuildingsCostOrValuation to label_LandBuildingsCostOrValuation"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsCostOrValuation_2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_LandBuildingsCostOrValuation" xml:lang="en" id="label_LandBuildingsCostOrValuation_2">Land and buildings, at cost or valuation, end of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsCostOrValuation" xlink:to="label_LandBuildingsCostOrValuation_2" xlink:title="label: LandBuildingsCostOrValuation to label_LandBuildingsCostOrValuation"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsCostOrValuation_3" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="label_LandBuildingsCostOrValuation" xml:lang="en" id="label_LandBuildingsCostOrValuation_3">Land and buildings, at cost or valuation, beginning of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsCostOrValuation" xlink:to="label_LandBuildingsCostOrValuation_3" xlink:title="label: LandBuildingsCostOrValuation to label_LandBuildingsCostOrValuation"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LandBuildingsDepreciation" xlink:label="LandBuildingsDepreciation" xlink:title="LandBuildingsDepreciation"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsDepreciation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LandBuildingsDepreciation" xml:lang="en" id="label_LandBuildingsDepreciation">Land and buildings, depreciation</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsDepreciation" xlink:to="label_LandBuildingsDepreciation" xlink:title="label: LandBuildingsDepreciation to label_LandBuildingsDepreciation"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsDepreciation_2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_LandBuildingsDepreciation" xml:lang="en" id="label_LandBuildingsDepreciation_2">Land and buildings, depreciation, end of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsDepreciation" xlink:to="label_LandBuildingsDepreciation_2" xlink:title="label: LandBuildingsDepreciation to label_LandBuildingsDepreciation"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsDepreciation_3" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="label_LandBuildingsDepreciation" xml:lang="en" id="label_LandBuildingsDepreciation_3">Land and buildings, depreciation, beginning of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsDepreciation" xlink:to="label_LandBuildingsDepreciation_3" xlink:title="label: LandBuildingsDepreciation to label_LandBuildingsDepreciation"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LandBuildingsDepreciationAcquisitions" xlink:label="LandBuildingsDepreciationAcquisitions" xlink:title="LandBuildingsDepreciationAcquisitions"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsDepreciationAcquisitions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LandBuildingsDepreciationAcquisitions" xml:lang="en" id="label_LandBuildingsDepreciationAcquisitions">Land and buildings, depreciation, acquisitions</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsDepreciationAcquisitions" xlink:to="label_LandBuildingsDepreciationAcquisitions" xlink:title="label: LandBuildingsDepreciationAcquisitions to label_LandBuildingsDepreciationAcquisitions"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LandBuildingsDepreciationChargeForPeriod" xlink:label="LandBuildingsDepreciationChargeForPeriod" xlink:title="LandBuildingsDepreciationChargeForPeriod"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsDepreciationChargeForPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LandBuildingsDepreciationChargeForPeriod" xml:lang="en" id="label_LandBuildingsDepreciationChargeForPeriod">Land and buildings, depreciation, charge for period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsDepreciationChargeForPeriod" xlink:to="label_LandBuildingsDepreciationChargeForPeriod" xlink:title="label: LandBuildingsDepreciationChargeForPeriod to label_LandBuildingsDepreciationChargeForPeriod"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LandBuildingsDepreciationDisposals" xlink:label="LandBuildingsDepreciationDisposals" xlink:title="LandBuildingsDepreciationDisposals"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsDepreciationDisposals" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LandBuildingsDepreciationDisposals" xml:lang="en" id="label_LandBuildingsDepreciationDisposals">Land and buildings, depreciation, disposals</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsDepreciationDisposals" xlink:to="label_LandBuildingsDepreciationDisposals" xlink:title="label: LandBuildingsDepreciationDisposals to label_LandBuildingsDepreciationDisposals"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LandBuildingsDepreciationDisposedWithSubsidiary" xlink:label="LandBuildingsDepreciationDisposedWithSubsidiary" xlink:title="LandBuildingsDepreciationDisposedWithSubsidiary"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsDepreciationDisposedWithSubsidiary" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LandBuildingsDepreciationDisposedWithSubsidiary" xml:lang="en" id="label_LandBuildingsDepreciationDisposedWithSubsidiary">Land and buildings, depreciation, disposed with subsidiary</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsDepreciationDisposedWithSubsidiary" xlink:to="label_LandBuildingsDepreciationDisposedWithSubsidiary" xlink:title="label: LandBuildingsDepreciationDisposedWithSubsidiary to label_LandBuildingsDepreciationDisposedWithSubsidiary"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LandBuildingsDepreciationImpairmentLosses" xlink:label="LandBuildingsDepreciationImpairmentLosses" xlink:title="LandBuildingsDepreciationImpairmentLosses"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsDepreciationImpairmentLosses" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LandBuildingsDepreciationImpairmentLosses" xml:lang="en" id="label_LandBuildingsDepreciationImpairmentLosses">Land and buildings, depreciation, impairment losses</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsDepreciationImpairmentLosses" xlink:to="label_LandBuildingsDepreciationImpairmentLosses" xlink:title="label: LandBuildingsDepreciationImpairmentLosses to label_LandBuildingsDepreciationImpairmentLosses"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LandBuildingsDepreciationIncreaseDecreaseFromExchangeAdjustments" xlink:label="LandBuildingsDepreciationIncreaseDecreaseFromExchangeAdjustments" xlink:title="LandBuildingsDepreciationIncreaseDecreaseFromExchangeAdjustments"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsDepreciationIncreaseDecreaseFromExchangeAdjustments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LandBuildingsDepreciationIncreaseDecreaseFromExchangeAdjustments" xml:lang="en" id="label_LandBuildingsDepreciationIncreaseDecreaseFromExchangeAdjustments">Land and buildings, depreciation, increase (decrease) from exchange adjustments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsDepreciationIncreaseDecreaseFromExchangeAdjustments" xlink:to="label_LandBuildingsDepreciationIncreaseDecreaseFromExchangeAdjustments" xlink:title="label: LandBuildingsDepreciationIncreaseDecreaseFromExchangeAdjustments to label_LandBuildingsDepreciationIncreaseDecreaseFromExchangeAdjustments"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LandBuildingsDepreciationIncreaseDecreaseFromRevaluations" xlink:label="LandBuildingsDepreciationIncreaseDecreaseFromRevaluations" xlink:title="LandBuildingsDepreciationIncreaseDecreaseFromRevaluations"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsDepreciationIncreaseDecreaseFromRevaluations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LandBuildingsDepreciationIncreaseDecreaseFromRevaluations" xml:lang="en" id="label_LandBuildingsDepreciationIncreaseDecreaseFromRevaluations">Land and buildings, depreciation, increase (decrease) from revaluations</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsDepreciationIncreaseDecreaseFromRevaluations" xlink:to="label_LandBuildingsDepreciationIncreaseDecreaseFromRevaluations" xlink:title="label: LandBuildingsDepreciationIncreaseDecreaseFromRevaluations to label_LandBuildingsDepreciationIncreaseDecreaseFromRevaluations"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LandBuildingsDepreciationIncreaseDecreaseFromTransfersBetweenItems" xlink:label="LandBuildingsDepreciationIncreaseDecreaseFromTransfersBetweenItems" xlink:title="LandBuildingsDepreciationIncreaseDecreaseFromTransfersBetweenItems"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsDepreciationIncreaseDecreaseFromTransfersBetweenItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LandBuildingsDepreciationIncreaseDecreaseFromTransfersBetweenItems" xml:lang="en" id="label_LandBuildingsDepreciationIncreaseDecreaseFromTransfersBetweenItems">Land and buildings, depreciation, increase (decrease) from transfers between items</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsDepreciationIncreaseDecreaseFromTransfersBetweenItems" xlink:to="label_LandBuildingsDepreciationIncreaseDecreaseFromTransfersBetweenItems" xlink:title="label: LandBuildingsDepreciationIncreaseDecreaseFromTransfersBetweenItems to label_LandBuildingsDepreciationIncreaseDecreaseFromTransfersBetweenItems"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LandBuildingsDepreciationReversalPastImpairments" xlink:label="LandBuildingsDepreciationReversalPastImpairments" xlink:title="LandBuildingsDepreciationReversalPastImpairments"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsDepreciationReversalPastImpairments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LandBuildingsDepreciationReversalPastImpairments" xml:lang="en" id="label_LandBuildingsDepreciationReversalPastImpairments">Land and buildings, depreciation, reversal of past impairments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsDepreciationReversalPastImpairments" xlink:to="label_LandBuildingsDepreciationReversalPastImpairments" xlink:title="label: LandBuildingsDepreciationReversalPastImpairments to label_LandBuildingsDepreciationReversalPastImpairments"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LandBuildingsDisposals" xlink:label="LandBuildingsDisposals" xlink:title="LandBuildingsDisposals"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsDisposals" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LandBuildingsDisposals" xml:lang="en" id="label_LandBuildingsDisposals">Land and buildings, disposals</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsDisposals" xlink:to="label_LandBuildingsDisposals" xlink:title="label: LandBuildingsDisposals to label_LandBuildingsDisposals"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LandBuildingsDisposedWithSubsidiary" xlink:label="LandBuildingsDisposedWithSubsidiary" xlink:title="LandBuildingsDisposedWithSubsidiary"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsDisposedWithSubsidiary" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LandBuildingsDisposedWithSubsidiary" xml:lang="en" id="label_LandBuildingsDisposedWithSubsidiary">Land and buildings, disposed with subsidiary</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsDisposedWithSubsidiary" xlink:to="label_LandBuildingsDisposedWithSubsidiary" xlink:title="label: LandBuildingsDisposedWithSubsidiary to label_LandBuildingsDisposedWithSubsidiary"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LandBuildingsImpairmentLosses" xlink:label="LandBuildingsImpairmentLosses" xlink:title="LandBuildingsImpairmentLosses"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsImpairmentLosses" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LandBuildingsImpairmentLosses" xml:lang="en" id="label_LandBuildingsImpairmentLosses">Land and buildings, impairment losses</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsImpairmentLosses" xlink:to="label_LandBuildingsImpairmentLosses" xlink:title="label: LandBuildingsImpairmentLosses to label_LandBuildingsImpairmentLosses"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LandBuildingsIncreaseDecreaseFromExchangeAdjustments" xlink:label="LandBuildingsIncreaseDecreaseFromExchangeAdjustments" xlink:title="LandBuildingsIncreaseDecreaseFromExchangeAdjustments"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsIncreaseDecreaseFromExchangeAdjustments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LandBuildingsIncreaseDecreaseFromExchangeAdjustments" xml:lang="en" id="label_LandBuildingsIncreaseDecreaseFromExchangeAdjustments">Land and buildings, increase (decrease) from exchange adjustments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsIncreaseDecreaseFromExchangeAdjustments" xlink:to="label_LandBuildingsIncreaseDecreaseFromExchangeAdjustments" xlink:title="label: LandBuildingsIncreaseDecreaseFromExchangeAdjustments to label_LandBuildingsIncreaseDecreaseFromExchangeAdjustments"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LandBuildingsIncreaseDecreaseFromRevaluations" xlink:label="LandBuildingsIncreaseDecreaseFromRevaluations" xlink:title="LandBuildingsIncreaseDecreaseFromRevaluations"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsIncreaseDecreaseFromRevaluations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LandBuildingsIncreaseDecreaseFromRevaluations" xml:lang="en" id="label_LandBuildingsIncreaseDecreaseFromRevaluations">Land and buildings, increase (decrease) from revaluations</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsIncreaseDecreaseFromRevaluations" xlink:to="label_LandBuildingsIncreaseDecreaseFromRevaluations" xlink:title="label: LandBuildingsIncreaseDecreaseFromRevaluations to label_LandBuildingsIncreaseDecreaseFromRevaluations"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LandBuildingsIncreaseDecreaseFromTransfersBetweenItems" xlink:label="LandBuildingsIncreaseDecreaseFromTransfersBetweenItems" xlink:title="LandBuildingsIncreaseDecreaseFromTransfersBetweenItems"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsIncreaseDecreaseFromTransfersBetweenItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LandBuildingsIncreaseDecreaseFromTransfersBetweenItems" xml:lang="en" id="label_LandBuildingsIncreaseDecreaseFromTransfersBetweenItems">Land and buildings, increase (decrease) from transfers between items</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsIncreaseDecreaseFromTransfersBetweenItems" xlink:to="label_LandBuildingsIncreaseDecreaseFromTransfersBetweenItems" xlink:title="label: LandBuildingsIncreaseDecreaseFromTransfersBetweenItems to label_LandBuildingsIncreaseDecreaseFromTransfersBetweenItems"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LandBuildingsNetBookValueOnHistoricalCostBasis" xlink:label="LandBuildingsNetBookValueOnHistoricalCostBasis" xlink:title="LandBuildingsNetBookValueOnHistoricalCostBasis"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsNetBookValueOnHistoricalCostBasis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LandBuildingsNetBookValueOnHistoricalCostBasis" xml:lang="en" id="label_LandBuildingsNetBookValueOnHistoricalCostBasis">Land and buildings, net book value on historical cost basis</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsNetBookValueOnHistoricalCostBasis" xlink:to="label_LandBuildingsNetBookValueOnHistoricalCostBasis" xlink:title="label: LandBuildingsNetBookValueOnHistoricalCostBasis to label_LandBuildingsNetBookValueOnHistoricalCostBasis"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsNetBookValueOnHistoricalCostBasis_2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_LandBuildingsNetBookValueOnHistoricalCostBasis" xml:lang="en" id="label_LandBuildingsNetBookValueOnHistoricalCostBasis_2">Land and buildings, net book value on historical cost basis, end of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsNetBookValueOnHistoricalCostBasis" xlink:to="label_LandBuildingsNetBookValueOnHistoricalCostBasis_2" xlink:title="label: LandBuildingsNetBookValueOnHistoricalCostBasis to label_LandBuildingsNetBookValueOnHistoricalCostBasis"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LandBuildingsReversalPastImpairments" xlink:label="LandBuildingsReversalPastImpairments" xlink:title="LandBuildingsReversalPastImpairments"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsReversalPastImpairments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LandBuildingsReversalPastImpairments" xml:lang="en" id="label_LandBuildingsReversalPastImpairments">Land and buildings, reversal of past impairments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsReversalPastImpairments" xlink:to="label_LandBuildingsReversalPastImpairments" xlink:title="label: LandBuildingsReversalPastImpairments to label_LandBuildingsReversalPastImpairments"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LandBuildingsInvestmentProperties" xlink:label="LandBuildingsInvestmentProperties" xlink:title="LandBuildingsInvestmentProperties"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsInvestmentProperties" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LandBuildingsInvestmentProperties" xml:lang="en" id="label_LandBuildingsInvestmentProperties">Investment properties</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsInvestmentProperties" xlink:to="label_LandBuildingsInvestmentProperties" xlink:title="label: LandBuildingsInvestmentProperties to label_LandBuildingsInvestmentProperties"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LandBuildingsOperatingLeasesExpiringAfterFiveYears" xlink:label="LandBuildingsOperatingLeasesExpiringAfterFiveYears" xlink:title="LandBuildingsOperatingLeasesExpiringAfterFiveYears"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsOperatingLeasesExpiringAfterFiveYears" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LandBuildingsOperatingLeasesExpiringAfterFiveYears" xml:lang="en" id="label_LandBuildingsOperatingLeasesExpiringAfterFiveYears">Land and buildings operating leases expiring after five years</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsOperatingLeasesExpiringAfterFiveYears" xlink:to="label_LandBuildingsOperatingLeasesExpiringAfterFiveYears" xlink:title="label: LandBuildingsOperatingLeasesExpiringAfterFiveYears to label_LandBuildingsOperatingLeasesExpiringAfterFiveYears"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LandBuildingsOperatingLeasesExpiringBetweenTwoFiveYears" xlink:label="LandBuildingsOperatingLeasesExpiringBetweenTwoFiveYears" xlink:title="LandBuildingsOperatingLeasesExpiringBetweenTwoFiveYears"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsOperatingLeasesExpiringBetweenTwoFiveYears" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LandBuildingsOperatingLeasesExpiringBetweenTwoFiveYears" xml:lang="en" id="label_LandBuildingsOperatingLeasesExpiringBetweenTwoFiveYears">Land and buildings operating leases expiring between two and five years</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsOperatingLeasesExpiringBetweenTwoFiveYears" xlink:to="label_LandBuildingsOperatingLeasesExpiringBetweenTwoFiveYears" xlink:title="label: LandBuildingsOperatingLeasesExpiringBetweenTwoFiveYears to label_LandBuildingsOperatingLeasesExpiringBetweenTwoFiveYears"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LandBuildingsOperatingLeasesExpiringWithinOneYear" xlink:label="LandBuildingsOperatingLeasesExpiringWithinOneYear" xlink:title="LandBuildingsOperatingLeasesExpiringWithinOneYear"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsOperatingLeasesExpiringWithinOneYear" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LandBuildingsOperatingLeasesExpiringWithinOneYear" xml:lang="en" id="label_LandBuildingsOperatingLeasesExpiringWithinOneYear">Land and buildings operating leases expiring within one year</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsOperatingLeasesExpiringWithinOneYear" xlink:to="label_LandBuildingsOperatingLeasesExpiringWithinOneYear" xlink:title="label: LandBuildingsOperatingLeasesExpiringWithinOneYear to label_LandBuildingsOperatingLeasesExpiringWithinOneYear"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LandBuildingsValuationFreehold" xlink:label="LandBuildingsValuationFreehold" xlink:title="LandBuildingsValuationFreehold"/>
    <label xlink:type="resource" xlink:label="label_LandBuildingsValuationFreehold" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LandBuildingsValuationFreehold" xml:lang="en" id="label_LandBuildingsValuationFreehold">Land and buildings at valuation</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LandBuildingsValuationFreehold" xlink:to="label_LandBuildingsValuationFreehold" xlink:title="label: LandBuildingsValuationFreehold to label_LandBuildingsValuationFreehold"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LargestGroupInWhichResultsAreConsolidated" xlink:label="LargestGroupInWhichResultsAreConsolidated" xlink:title="LargestGroupInWhichResultsAreConsolidated"/>
    <label xlink:type="resource" xlink:label="label_LargestGroupInWhichResultsAreConsolidated" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LargestGroupInWhichResultsAreConsolidated" xml:lang="en" id="label_LargestGroupInWhichResultsAreConsolidated">Largest group in which results are consolidated</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LargestGroupInWhichResultsAreConsolidated" xlink:to="label_LargestGroupInWhichResultsAreConsolidated" xlink:title="label: LargestGroupInWhichResultsAreConsolidated to label_LargestGroupInWhichResultsAreConsolidated"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LeasedAssetsIncludedInFiguresFixturesFittingsToolsEquipment" xlink:label="LeasedAssetsIncludedInFiguresFixturesFittingsToolsEquipment" xlink:title="LeasedAssetsIncludedInFiguresFixturesFittingsToolsEquipment"/>
    <label xlink:type="resource" xlink:label="label_LeasedAssetsIncludedInFiguresFixturesFittingsToolsEquipment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LeasedAssetsIncludedInFiguresFixturesFittingsToolsEquipment" xml:lang="en" id="label_LeasedAssetsIncludedInFiguresFixturesFittingsToolsEquipment">Leased assets included in figures, fixtures, fittings, tools and equipment</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LeasedAssetsIncludedInFiguresFixturesFittingsToolsEquipment" xlink:to="label_LeasedAssetsIncludedInFiguresFixturesFittingsToolsEquipment" xlink:title="label: LeasedAssetsIncludedInFiguresFixturesFittingsToolsEquipment to label_LeasedAssetsIncludedInFiguresFixturesFittingsToolsEquipment"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LeasedAssetsIncludedInFiguresPlantMachinery" xlink:label="LeasedAssetsIncludedInFiguresPlantMachinery" xlink:title="LeasedAssetsIncludedInFiguresPlantMachinery"/>
    <label xlink:type="resource" xlink:label="label_LeasedAssetsIncludedInFiguresPlantMachinery" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LeasedAssetsIncludedInFiguresPlantMachinery" xml:lang="en" id="label_LeasedAssetsIncludedInFiguresPlantMachinery">Leased assets included in figures, plant and machinery</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LeasedAssetsIncludedInFiguresPlantMachinery" xlink:to="label_LeasedAssetsIncludedInFiguresPlantMachinery" xlink:title="label: LeasedAssetsIncludedInFiguresPlantMachinery to label_LeasedAssetsIncludedInFiguresPlantMachinery"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LeasedAssetsIncludedInFiguresTangibleFixedAssets" xlink:label="LeasedAssetsIncludedInFiguresTangibleFixedAssets" xlink:title="LeasedAssetsIncludedInFiguresTangibleFixedAssets"/>
    <label xlink:type="resource" xlink:label="label_LeasedAssetsIncludedInFiguresTangibleFixedAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LeasedAssetsIncludedInFiguresTangibleFixedAssets" xml:lang="en" id="label_LeasedAssetsIncludedInFiguresTangibleFixedAssets">Analysis of leased assets included in tangible fixed assets</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LeasedAssetsIncludedInFiguresTangibleFixedAssets" xlink:to="label_LeasedAssetsIncludedInFiguresTangibleFixedAssets" xlink:title="label: LeasedAssetsIncludedInFiguresTangibleFixedAssets to label_LeasedAssetsIncludedInFiguresTangibleFixedAssets"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LeasedAssetsIncludedInFixturesFittingsToolsEquipment" xlink:label="LeasedAssetsIncludedInFixturesFittingsToolsEquipment" xlink:title="LeasedAssetsIncludedInFixturesFittingsToolsEquipment"/>
    <label xlink:type="resource" xlink:label="label_LeasedAssetsIncludedInFixturesFittingsToolsEquipment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LeasedAssetsIncludedInFixturesFittingsToolsEquipment" xml:lang="en" id="label_LeasedAssetsIncludedInFixturesFittingsToolsEquipment">Leased assets included in fixtures, fittings, tools and equipment</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LeasedAssetsIncludedInFixturesFittingsToolsEquipment" xlink:to="label_LeasedAssetsIncludedInFixturesFittingsToolsEquipment" xlink:title="label: LeasedAssetsIncludedInFixturesFittingsToolsEquipment to label_LeasedAssetsIncludedInFixturesFittingsToolsEquipment"/>
    <label xlink:type="resource" xlink:label="label_LeasedAssetsIncludedInFixturesFittingsToolsEquipment_2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_LeasedAssetsIncludedInFixturesFittingsToolsEquipment" xml:lang="en" id="label_LeasedAssetsIncludedInFixturesFittingsToolsEquipment_2">Leased assets included in fixtures, fittings, tools and equipment, end of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LeasedAssetsIncludedInFixturesFittingsToolsEquipment" xlink:to="label_LeasedAssetsIncludedInFixturesFittingsToolsEquipment_2" xlink:title="label: LeasedAssetsIncludedInFixturesFittingsToolsEquipment to label_LeasedAssetsIncludedInFixturesFittingsToolsEquipment"/>
    <label xlink:type="resource" xlink:label="label_LeasedAssetsIncludedInFixturesFittingsToolsEquipment_3" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="label_LeasedAssetsIncludedInFixturesFittingsToolsEquipment" xml:lang="en" id="label_LeasedAssetsIncludedInFixturesFittingsToolsEquipment_3">Leased assets included in fixtures, fittings, tools and equipment, beginning of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LeasedAssetsIncludedInFixturesFittingsToolsEquipment" xlink:to="label_LeasedAssetsIncludedInFixturesFittingsToolsEquipment_3" xlink:title="label: LeasedAssetsIncludedInFixturesFittingsToolsEquipment to label_LeasedAssetsIncludedInFixturesFittingsToolsEquipment"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LeasedAssetsIncludedInPlantMachinery" xlink:label="LeasedAssetsIncludedInPlantMachinery" xlink:title="LeasedAssetsIncludedInPlantMachinery"/>
    <label xlink:type="resource" xlink:label="label_LeasedAssetsIncludedInPlantMachinery" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LeasedAssetsIncludedInPlantMachinery" xml:lang="en" id="label_LeasedAssetsIncludedInPlantMachinery">Leased assets included in plant and machinery</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LeasedAssetsIncludedInPlantMachinery" xlink:to="label_LeasedAssetsIncludedInPlantMachinery" xlink:title="label: LeasedAssetsIncludedInPlantMachinery to label_LeasedAssetsIncludedInPlantMachinery"/>
    <label xlink:type="resource" xlink:label="label_LeasedAssetsIncludedInPlantMachinery_2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_LeasedAssetsIncludedInPlantMachinery" xml:lang="en" id="label_LeasedAssetsIncludedInPlantMachinery_2">Leased assets included in plant and machinery, end of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LeasedAssetsIncludedInPlantMachinery" xlink:to="label_LeasedAssetsIncludedInPlantMachinery_2" xlink:title="label: LeasedAssetsIncludedInPlantMachinery to label_LeasedAssetsIncludedInPlantMachinery"/>
    <label xlink:type="resource" xlink:label="label_LeasedAssetsIncludedInPlantMachinery_3" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="label_LeasedAssetsIncludedInPlantMachinery" xml:lang="en" id="label_LeasedAssetsIncludedInPlantMachinery_3">Leased assets included in plant and machinery, beginning of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LeasedAssetsIncludedInPlantMachinery" xlink:to="label_LeasedAssetsIncludedInPlantMachinery_3" xlink:title="label: LeasedAssetsIncludedInPlantMachinery to label_LeasedAssetsIncludedInPlantMachinery"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_LeasedAssetsIncludedInTangibleFixedAssets" xlink:label="LeasedAssetsIncludedInTangibleFixedAssets" xlink:title="LeasedAssetsIncludedInTangibleFixedAssets"/>
    <label xlink:type="resource" xlink:label="label_LeasedAssetsIncludedInTangibleFixedAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LeasedAssetsIncludedInTangibleFixedAssets" xml:lang="en" id="label_LeasedAssetsIncludedInTangibleFixedAssets">Leased assets included in tangible fixed assets</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LeasedAssetsIncludedInTangibleFixedAssets" xlink:to="label_LeasedAssetsIncludedInTangibleFixedAssets" xlink:title="label: LeasedAssetsIncludedInTangibleFixedAssets to label_LeasedAssetsIncludedInTangibleFixedAssets"/>
    <label xlink:type="resource" xlink:label="label_LeasedAssetsIncludedInTangibleFixedAssets_2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_LeasedAssetsIncludedInTangibleFixedAssets" xml:lang="en" id="label_LeasedAssetsIncludedInTangibleFixedAssets_2">Leased assets included in tangible fixed assets, end of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LeasedAssetsIncludedInTangibleFixedAssets" xlink:to="label_LeasedAssetsIncludedInTangibleFixedAssets_2" xlink:title="label: LeasedAssetsIncludedInTangibleFixedAssets to label_LeasedAssetsIncludedInTangibleFixedAssets"/>
    <label xlink:type="resource" xlink:label="label_LeasedAssetsIncludedInTangibleFixedAssets_3" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="label_LeasedAssetsIncludedInTangibleFixedAssets" xml:lang="en" id="label_LeasedAssetsIncludedInTangibleFixedAssets_3">Leased assets included in tangible fixed assets, beginning of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LeasedAssetsIncludedInTangibleFixedAssets" xlink:to="label_LeasedAssetsIncludedInTangibleFixedAssets_3" xlink:title="label: LeasedAssetsIncludedInTangibleFixedAssets to label_LeasedAssetsIncludedInTangibleFixedAssets"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_ListedInvestments" xlink:label="ListedInvestments" xlink:title="ListedInvestments"/>
    <label xlink:type="resource" xlink:label="label_ListedInvestments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ListedInvestments" xml:lang="en" id="label_ListedInvestments">Listed investments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ListedInvestments" xlink:to="label_ListedInvestments" xlink:title="label: ListedInvestments to label_ListedInvestments"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_ListedInvestmentsIncludedInFinancialFixedAssetsInterestsInAssociatedUndertakings" xlink:label="ListedInvestmentsIncludedInFinancialFixedAssetsInterestsInAssociatedUndertakings" xlink:title="ListedInvestmentsIncludedInFinancialFixedAssetsInterestsInAssociatedUndertakings"/>
    <label xlink:type="resource" xlink:label="label_ListedInvestmentsIncludedInFinancialFixedAssetsInterestsInAssociatedUndertakings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ListedInvestmentsIncludedInFinancialFixedAssetsInterestsInAssociatedUndertakings" xml:lang="en" id="label_ListedInvestmentsIncludedInFinancialFixedAssetsInterestsInAssociatedUndertakings">Listed investments included in interests in associates</label>
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    <label xlink:type="resource" xlink:label="label_FinancialFixedAssetsLoansToParticipatingInterestUndertakingsProvisionsMadeDuringPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FinancialFixedAssetsLoansToParticipatingInterestUndertakingsProvisionsMadeDuringPeriod" xml:lang="en" id="label_FinancialFixedAssetsLoansToParticipatingInterestUndertakingsProvisionsMadeDuringPeriod">Loans to associates, provisions, made during period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinancialFixedAssetsLoansToParticipatingInterestUndertakingsProvisionsMadeDuringPeriod" xlink:to="label_FinancialFixedAssetsLoansToParticipatingInterestUndertakingsProvisionsMadeDuringPeriod" xlink:title="label: FinancialFixedAssetsLoansToParticipatingInterestUndertakingsProvisionsMadeDuringPeriod to label_FinancialFixedAssetsLoansToParticipatingInterestUndertakingsProvisionsMadeDuringPeriod"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FinancialFixedAssetsLoansToParticipatingInterestUndertakingsProvisionsReleased" xlink:label="FinancialFixedAssetsLoansToParticipatingInterestUndertakingsProvisionsReleased" xlink:title="FinancialFixedAssetsLoansToParticipatingInterestUndertakingsProvisionsReleased"/>
    <label xlink:type="resource" xlink:label="label_FinancialFixedAssetsLoansToParticipatingInterestUndertakingsProvisionsReleased" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FinancialFixedAssetsLoansToParticipatingInterestUndertakingsProvisionsReleased" xml:lang="en" id="label_FinancialFixedAssetsLoansToParticipatingInterestUndertakingsProvisionsReleased">Loans to associates, provisions, released</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinancialFixedAssetsLoansToParticipatingInterestUndertakingsProvisionsReleased" xlink:to="label_FinancialFixedAssetsLoansToParticipatingInterestUndertakingsProvisionsReleased" xlink:title="label: FinancialFixedAssetsLoansToParticipatingInterestUndertakingsProvisionsReleased to label_FinancialFixedAssetsLoansToParticipatingInterestUndertakingsProvisionsReleased"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FinancialFixedAssetsLoansToParticipatingInterestUndertakingsRepayments" xlink:label="FinancialFixedAssetsLoansToParticipatingInterestUndertakingsRepayments" xlink:title="FinancialFixedAssetsLoansToParticipatingInterestUndertakingsRepayments"/>
    <label xlink:type="resource" xlink:label="label_FinancialFixedAssetsLoansToParticipatingInterestUndertakingsRepayments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FinancialFixedAssetsLoansToParticipatingInterestUndertakingsRepayments" xml:lang="en" id="label_FinancialFixedAssetsLoansToParticipatingInterestUndertakingsRepayments">Loans to associates, repayments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinancialFixedAssetsLoansToParticipatingInterestUndertakingsRepayments" xlink:to="label_FinancialFixedAssetsLoansToParticipatingInterestUndertakingsRepayments" xlink:title="label: FinancialFixedAssetsLoansToParticipatingInterestUndertakingsRepayments to label_FinancialFixedAssetsLoansToParticipatingInterestUndertakingsRepayments"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FinancialFixedAssetsLoansToGroupUndertakingsAdditions" xlink:label="FinancialFixedAssetsLoansToGroupUndertakingsAdditions" xlink:title="FinancialFixedAssetsLoansToGroupUndertakingsAdditions"/>
    <label xlink:type="resource" xlink:label="label_FinancialFixedAssetsLoansToGroupUndertakingsAdditions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FinancialFixedAssetsLoansToGroupUndertakingsAdditions" xml:lang="en" id="label_FinancialFixedAssetsLoansToGroupUndertakingsAdditions">Loans to subsidiaries, additions</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinancialFixedAssetsLoansToGroupUndertakingsAdditions" xlink:to="label_FinancialFixedAssetsLoansToGroupUndertakingsAdditions" xlink:title="label: FinancialFixedAssetsLoansToGroupUndertakingsAdditions to label_FinancialFixedAssetsLoansToGroupUndertakingsAdditions"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FinancialFixedAssetsLoansToGroupUndertakings" xlink:label="FinancialFixedAssetsLoansToGroupUndertakings" xlink:title="FinancialFixedAssetsLoansToGroupUndertakings"/>
    <label xlink:type="resource" xlink:label="label_FinancialFixedAssetsLoansToGroupUndertakings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FinancialFixedAssetsLoansToGroupUndertakings" xml:lang="en" id="label_FinancialFixedAssetsLoansToGroupUndertakings">Loans to subsidiaries</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinancialFixedAssetsLoansToGroupUndertakings" xlink:to="label_FinancialFixedAssetsLoansToGroupUndertakings" xlink:title="label: FinancialFixedAssetsLoansToGroupUndertakings to label_FinancialFixedAssetsLoansToGroupUndertakings"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FinancialFixedAssetsLoansToGroupUndertakingsCost" xlink:label="FinancialFixedAssetsLoansToGroupUndertakingsCost" xlink:title="FinancialFixedAssetsLoansToGroupUndertakingsCost"/>
    <label xlink:type="resource" xlink:label="label_FinancialFixedAssetsLoansToGroupUndertakingsCost" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FinancialFixedAssetsLoansToGroupUndertakingsCost" xml:lang="en" id="label_FinancialFixedAssetsLoansToGroupUndertakingsCost">Loans to subsidiaries, cost</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinancialFixedAssetsLoansToGroupUndertakingsCost" xlink:to="label_FinancialFixedAssetsLoansToGroupUndertakingsCost" xlink:title="label: FinancialFixedAssetsLoansToGroupUndertakingsCost to label_FinancialFixedAssetsLoansToGroupUndertakingsCost"/>
    <label xlink:type="resource" xlink:label="label_FinancialFixedAssetsLoansToGroupUndertakingsCost_2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_FinancialFixedAssetsLoansToGroupUndertakingsCost" xml:lang="en" id="label_FinancialFixedAssetsLoansToGroupUndertakingsCost_2">Loans to subsidiaries, cost, end of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinancialFixedAssetsLoansToGroupUndertakingsCost" xlink:to="label_FinancialFixedAssetsLoansToGroupUndertakingsCost_2" xlink:title="label: FinancialFixedAssetsLoansToGroupUndertakingsCost to label_FinancialFixedAssetsLoansToGroupUndertakingsCost"/>
    <label xlink:type="resource" xlink:label="label_FinancialFixedAssetsLoansToGroupUndertakingsCost_3" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="label_FinancialFixedAssetsLoansToGroupUndertakingsCost" xml:lang="en" id="label_FinancialFixedAssetsLoansToGroupUndertakingsCost_3">Loans to subsidiaries, cost, beginning of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinancialFixedAssetsLoansToGroupUndertakingsCost" xlink:to="label_FinancialFixedAssetsLoansToGroupUndertakingsCost_3" xlink:title="label: FinancialFixedAssetsLoansToGroupUndertakingsCost to label_FinancialFixedAssetsLoansToGroupUndertakingsCost"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FinancialFixedAssetsLoansToGroupUndertakingsProvisions" xlink:label="FinancialFixedAssetsLoansToGroupUndertakingsProvisions" xlink:title="FinancialFixedAssetsLoansToGroupUndertakingsProvisions"/>
    <label xlink:type="resource" xlink:label="label_FinancialFixedAssetsLoansToGroupUndertakingsProvisions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FinancialFixedAssetsLoansToGroupUndertakingsProvisions" xml:lang="en" id="label_FinancialFixedAssetsLoansToGroupUndertakingsProvisions">Loans to subsidiaries, provisions</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinancialFixedAssetsLoansToGroupUndertakingsProvisions" xlink:to="label_FinancialFixedAssetsLoansToGroupUndertakingsProvisions" xlink:title="label: FinancialFixedAssetsLoansToGroupUndertakingsProvisions to label_FinancialFixedAssetsLoansToGroupUndertakingsProvisions"/>
    <label xlink:type="resource" xlink:label="label_FinancialFixedAssetsLoansToGroupUndertakingsProvisions_2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_FinancialFixedAssetsLoansToGroupUndertakingsProvisions" xml:lang="en" id="label_FinancialFixedAssetsLoansToGroupUndertakingsProvisions_2">Loans to subsidiaries, provisions, end of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinancialFixedAssetsLoansToGroupUndertakingsProvisions" xlink:to="label_FinancialFixedAssetsLoansToGroupUndertakingsProvisions_2" xlink:title="label: FinancialFixedAssetsLoansToGroupUndertakingsProvisions to label_FinancialFixedAssetsLoansToGroupUndertakingsProvisions"/>
    <label xlink:type="resource" xlink:label="label_FinancialFixedAssetsLoansToGroupUndertakingsProvisions_3" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="label_FinancialFixedAssetsLoansToGroupUndertakingsProvisions" xml:lang="en" id="label_FinancialFixedAssetsLoansToGroupUndertakingsProvisions_3">Loans to subsidiaries, provisions, beginning of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinancialFixedAssetsLoansToGroupUndertakingsProvisions" xlink:to="label_FinancialFixedAssetsLoansToGroupUndertakingsProvisions_3" xlink:title="label: FinancialFixedAssetsLoansToGroupUndertakingsProvisions to label_FinancialFixedAssetsLoansToGroupUndertakingsProvisions"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FinancialFixedAssetsLoansToGroupUndertakingsProvisionsMadeDuringPeriod" xlink:label="FinancialFixedAssetsLoansToGroupUndertakingsProvisionsMadeDuringPeriod" xlink:title="FinancialFixedAssetsLoansToGroupUndertakingsProvisionsMadeDuringPeriod"/>
    <label xlink:type="resource" xlink:label="label_FinancialFixedAssetsLoansToGroupUndertakingsProvisionsMadeDuringPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FinancialFixedAssetsLoansToGroupUndertakingsProvisionsMadeDuringPeriod" xml:lang="en" id="label_FinancialFixedAssetsLoansToGroupUndertakingsProvisionsMadeDuringPeriod">Loans to subsidiaries, provisions, made during period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinancialFixedAssetsLoansToGroupUndertakingsProvisionsMadeDuringPeriod" xlink:to="label_FinancialFixedAssetsLoansToGroupUndertakingsProvisionsMadeDuringPeriod" xlink:title="label: FinancialFixedAssetsLoansToGroupUndertakingsProvisionsMadeDuringPeriod to label_FinancialFixedAssetsLoansToGroupUndertakingsProvisionsMadeDuringPeriod"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FinancialFixedAssetsLoansToGroupUndertakingsProvisionsReleased" xlink:label="FinancialFixedAssetsLoansToGroupUndertakingsProvisionsReleased" xlink:title="FinancialFixedAssetsLoansToGroupUndertakingsProvisionsReleased"/>
    <label xlink:type="resource" xlink:label="label_FinancialFixedAssetsLoansToGroupUndertakingsProvisionsReleased" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FinancialFixedAssetsLoansToGroupUndertakingsProvisionsReleased" xml:lang="en" id="label_FinancialFixedAssetsLoansToGroupUndertakingsProvisionsReleased">Loans to subsidiaries, provisions, released</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinancialFixedAssetsLoansToGroupUndertakingsProvisionsReleased" xlink:to="label_FinancialFixedAssetsLoansToGroupUndertakingsProvisionsReleased" xlink:title="label: FinancialFixedAssetsLoansToGroupUndertakingsProvisionsReleased to label_FinancialFixedAssetsLoansToGroupUndertakingsProvisionsReleased"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_FinancialFixedAssetsLoansToGroupUndertakingsRepayments" xlink:label="FinancialFixedAssetsLoansToGroupUndertakingsRepayments" xlink:title="FinancialFixedAssetsLoansToGroupUndertakingsRepayments"/>
    <label xlink:type="resource" xlink:label="label_FinancialFixedAssetsLoansToGroupUndertakingsRepayments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FinancialFixedAssetsLoansToGroupUndertakingsRepayments" xml:lang="en" id="label_FinancialFixedAssetsLoansToGroupUndertakingsRepayments">Loans to subsidiaries, repayments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinancialFixedAssetsLoansToGroupUndertakingsRepayments" xlink:to="label_FinancialFixedAssetsLoansToGroupUndertakingsRepayments" xlink:title="label: FinancialFixedAssetsLoansToGroupUndertakingsRepayments to label_FinancialFixedAssetsLoansToGroupUndertakingsRepayments"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_MinorityInterestBalanceSheet" xlink:label="MinorityInterestBalanceSheet" xlink:title="MinorityInterestBalanceSheet"/>
    <label xlink:type="resource" xlink:label="label_MinorityInterestBalanceSheet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_MinorityInterestBalanceSheet" xml:lang="en" id="label_MinorityInterestBalanceSheet">Minority interests</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MinorityInterestBalanceSheet" xlink:to="label_MinorityInterestBalanceSheet" xlink:title="label: MinorityInterestBalanceSheet to label_MinorityInterestBalanceSheet"/>
    <label xlink:type="resource" xlink:label="label_MinorityInterestBalanceSheet_2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_MinorityInterestBalanceSheet" xml:lang="en" id="label_MinorityInterestBalanceSheet_2">Minority interests at end of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MinorityInterestBalanceSheet" xlink:to="label_MinorityInterestBalanceSheet_2" xlink:title="label: MinorityInterestBalanceSheet to label_MinorityInterestBalanceSheet"/>
    <label xlink:type="resource" xlink:label="label_MinorityInterestBalanceSheet_3" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="label_MinorityInterestBalanceSheet" xml:lang="en" id="label_MinorityInterestBalanceSheet_3">Minority interests at beginning of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MinorityInterestBalanceSheet" xlink:to="label_MinorityInterestBalanceSheet_3" xlink:title="label: MinorityInterestBalanceSheet to label_MinorityInterestBalanceSheet"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_MinorityInterestsAnalysis" xlink:label="MinorityInterestsAnalysis" xlink:title="MinorityInterestsAnalysis"/>
    <label xlink:type="resource" xlink:label="label_MinorityInterestsAnalysis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_MinorityInterestsAnalysis" xml:lang="en" id="label_MinorityInterestsAnalysis">Minority interests movements analysis</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MinorityInterestsAnalysis" xlink:to="label_MinorityInterestsAnalysis" xlink:title="label: MinorityInterestsAnalysis to label_MinorityInterestsAnalysis"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_MinorityInterestsOrdinaryActivities" xlink:label="MinorityInterestsOrdinaryActivities" xlink:title="MinorityInterestsOrdinaryActivities"/>
    <label xlink:type="resource" xlink:label="label_MinorityInterestsOrdinaryActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_MinorityInterestsOrdinaryActivities" xml:lang="en" id="label_MinorityInterestsOrdinaryActivities">Minority interest ordinary activities</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MinorityInterestsOrdinaryActivities" xlink:to="label_MinorityInterestsOrdinaryActivities" xlink:title="label: MinorityInterestsOrdinaryActivities to label_MinorityInterestsOrdinaryActivities"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NameDisposal" xlink:label="NameDisposal" xlink:title="NameDisposal"/>
    <label xlink:type="resource" xlink:label="label_NameDisposal" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NameDisposal" xml:lang="en" id="label_NameDisposal">Name of disposal</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NameDisposal" xlink:to="label_NameDisposal" xlink:title="label: NameDisposal to label_NameDisposal"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NameLargestGroup" xlink:label="NameLargestGroup" xlink:title="NameLargestGroup"/>
    <label xlink:type="resource" xlink:label="label_NameLargestGroup" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NameLargestGroup" xml:lang="en" id="label_NameLargestGroup">Name of largest group</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NameLargestGroup" xlink:to="label_NameLargestGroup" xlink:title="label: NameLargestGroup to label_NameLargestGroup"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NameSmallestGroup" xlink:label="NameSmallestGroup" xlink:title="NameSmallestGroup"/>
    <label xlink:type="resource" xlink:label="label_NameSmallestGroup" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NameSmallestGroup" xml:lang="en" id="label_NameSmallestGroup">Name of smallest group</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NameSmallestGroup" xlink:to="label_NameSmallestGroup" xlink:title="label: NameSmallestGroup to label_NameSmallestGroup"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NameValuer" xlink:label="NameValuer" xlink:title="NameValuer"/>
    <label xlink:type="resource" xlink:label="label_NameValuer" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NameValuer" xml:lang="en" id="label_NameValuer">Name of valuer</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NameValuer" xlink:to="label_NameValuer" xlink:title="label: NameValuer to label_NameValuer"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NegativeGoodwill" xlink:label="NegativeGoodwill" xlink:title="NegativeGoodwill"/>
    <label xlink:type="resource" xlink:label="label_NegativeGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NegativeGoodwill" xml:lang="en" id="label_NegativeGoodwill">Negative goodwill</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NegativeGoodwill" xlink:to="label_NegativeGoodwill" xlink:title="label: NegativeGoodwill to label_NegativeGoodwill"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NegativeGoodwillAdditions" xlink:label="NegativeGoodwillAdditions" xlink:title="NegativeGoodwillAdditions"/>
    <label xlink:type="resource" xlink:label="label_NegativeGoodwillAdditions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NegativeGoodwillAdditions" xml:lang="en" id="label_NegativeGoodwillAdditions">Negative goodwill, additions</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NegativeGoodwillAdditions" xlink:to="label_NegativeGoodwillAdditions" xlink:title="label: NegativeGoodwillAdditions to label_NegativeGoodwillAdditions"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NegativeGoodwillAggregateAmortisationImpairment" xlink:label="NegativeGoodwillAggregateAmortisationImpairment" xlink:title="NegativeGoodwillAggregateAmortisationImpairment"/>
    <label xlink:type="resource" xlink:label="label_NegativeGoodwillAggregateAmortisationImpairment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NegativeGoodwillAggregateAmortisationImpairment" xml:lang="en" id="label_NegativeGoodwillAggregateAmortisationImpairment">Negative goodwill, aggregate amortisation and impairment</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NegativeGoodwillAggregateAmortisationImpairment" xlink:to="label_NegativeGoodwillAggregateAmortisationImpairment" xlink:title="label: NegativeGoodwillAggregateAmortisationImpairment to label_NegativeGoodwillAggregateAmortisationImpairment"/>
    <label xlink:type="resource" xlink:label="label_NegativeGoodwillAggregateAmortisationImpairment_2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_NegativeGoodwillAggregateAmortisationImpairment" xml:lang="en" id="label_NegativeGoodwillAggregateAmortisationImpairment_2">Negative goodwill, aggregate amortisation and impairment, end of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NegativeGoodwillAggregateAmortisationImpairment" xlink:to="label_NegativeGoodwillAggregateAmortisationImpairment_2" xlink:title="label: NegativeGoodwillAggregateAmortisationImpairment to label_NegativeGoodwillAggregateAmortisationImpairment"/>
    <label xlink:type="resource" xlink:label="label_NegativeGoodwillAggregateAmortisationImpairment_3" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="label_NegativeGoodwillAggregateAmortisationImpairment" xml:lang="en" id="label_NegativeGoodwillAggregateAmortisationImpairment_3">Negative goodwill, aggregate amortisation and impairment, beginning of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NegativeGoodwillAggregateAmortisationImpairment" xlink:to="label_NegativeGoodwillAggregateAmortisationImpairment_3" xlink:title="label: NegativeGoodwillAggregateAmortisationImpairment to label_NegativeGoodwillAggregateAmortisationImpairment"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NegativeGoodwillAmortisationChargedInPeriod" xlink:label="NegativeGoodwillAmortisationChargedInPeriod" xlink:title="NegativeGoodwillAmortisationChargedInPeriod"/>
    <label xlink:type="resource" xlink:label="label_NegativeGoodwillAmortisationChargedInPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NegativeGoodwillAmortisationChargedInPeriod" xml:lang="en" id="label_NegativeGoodwillAmortisationChargedInPeriod">Negative goodwill, amortisation charged in period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NegativeGoodwillAmortisationChargedInPeriod" xlink:to="label_NegativeGoodwillAmortisationChargedInPeriod" xlink:title="label: NegativeGoodwillAmortisationChargedInPeriod to label_NegativeGoodwillAmortisationChargedInPeriod"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NegativeGoodwillAmortisationCreditedInPeriod" xlink:label="NegativeGoodwillAmortisationCreditedInPeriod" xlink:title="NegativeGoodwillAmortisationCreditedInPeriod"/>
    <label xlink:type="resource" xlink:label="label_NegativeGoodwillAmortisationCreditedInPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NegativeGoodwillAmortisationCreditedInPeriod" xml:lang="en" id="label_NegativeGoodwillAmortisationCreditedInPeriod">Negative goodwill, amortisation credited in period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NegativeGoodwillAmortisationCreditedInPeriod" xlink:to="label_NegativeGoodwillAmortisationCreditedInPeriod" xlink:title="label: NegativeGoodwillAmortisationCreditedInPeriod to label_NegativeGoodwillAmortisationCreditedInPeriod"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NegativeGoodwillAmortisationImpairmentLosses" xlink:label="NegativeGoodwillAmortisationImpairmentLosses" xlink:title="NegativeGoodwillAmortisationImpairmentLosses"/>
    <label xlink:type="resource" xlink:label="label_NegativeGoodwillAmortisationImpairmentLosses" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NegativeGoodwillAmortisationImpairmentLosses" xml:lang="en" id="label_NegativeGoodwillAmortisationImpairmentLosses">Negative goodwill, amortisation, impairment losses</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NegativeGoodwillAmortisationImpairmentLosses" xlink:to="label_NegativeGoodwillAmortisationImpairmentLosses" xlink:title="label: NegativeGoodwillAmortisationImpairmentLosses to label_NegativeGoodwillAmortisationImpairmentLosses"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NegativeGoodwillAmortisationIncreaseDecreaseFromExchangeAdjustment" xlink:label="NegativeGoodwillAmortisationIncreaseDecreaseFromExchangeAdjustment" xlink:title="NegativeGoodwillAmortisationIncreaseDecreaseFromExchangeAdjustment"/>
    <label xlink:type="resource" xlink:label="label_NegativeGoodwillAmortisationIncreaseDecreaseFromExchangeAdjustment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NegativeGoodwillAmortisationIncreaseDecreaseFromExchangeAdjustment" xml:lang="en" id="label_NegativeGoodwillAmortisationIncreaseDecreaseFromExchangeAdjustment">Negative goodwill, amortisation, increase (decrease) from exchange adjustment</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NegativeGoodwillAmortisationIncreaseDecreaseFromExchangeAdjustment" xlink:to="label_NegativeGoodwillAmortisationIncreaseDecreaseFromExchangeAdjustment" xlink:title="label: NegativeGoodwillAmortisationIncreaseDecreaseFromExchangeAdjustment to label_NegativeGoodwillAmortisationIncreaseDecreaseFromExchangeAdjustment"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NegativeGoodwillAmortisationIncreaseDecreaseFromTransfersBetweenItems" xlink:label="NegativeGoodwillAmortisationIncreaseDecreaseFromTransfersBetweenItems" xlink:title="NegativeGoodwillAmortisationIncreaseDecreaseFromTransfersBetweenItems"/>
    <label xlink:type="resource" xlink:label="label_NegativeGoodwillAmortisationIncreaseDecreaseFromTransfersBetweenItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NegativeGoodwillAmortisationIncreaseDecreaseFromTransfersBetweenItems" xml:lang="en" id="label_NegativeGoodwillAmortisationIncreaseDecreaseFromTransfersBetweenItems">Negative goodwill, amortisation, increase (decrease) from transfers between items</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NegativeGoodwillAmortisationIncreaseDecreaseFromTransfersBetweenItems" xlink:to="label_NegativeGoodwillAmortisationIncreaseDecreaseFromTransfersBetweenItems" xlink:title="label: NegativeGoodwillAmortisationIncreaseDecreaseFromTransfersBetweenItems to label_NegativeGoodwillAmortisationIncreaseDecreaseFromTransfersBetweenItems"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NegativeGoodwillAmortisationOnDisposals" xlink:label="NegativeGoodwillAmortisationOnDisposals" xlink:title="NegativeGoodwillAmortisationOnDisposals"/>
    <label xlink:type="resource" xlink:label="label_NegativeGoodwillAmortisationOnDisposals" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NegativeGoodwillAmortisationOnDisposals" xml:lang="en" id="label_NegativeGoodwillAmortisationOnDisposals">Negative goodwill, amortisation on disposals</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NegativeGoodwillAmortisationOnDisposals" xlink:to="label_NegativeGoodwillAmortisationOnDisposals" xlink:title="label: NegativeGoodwillAmortisationOnDisposals to label_NegativeGoodwillAmortisationOnDisposals"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NegativeGoodwillAmortisationReversalPastImpairments" xlink:label="NegativeGoodwillAmortisationReversalPastImpairments" xlink:title="NegativeGoodwillAmortisationReversalPastImpairments"/>
    <label xlink:type="resource" xlink:label="label_NegativeGoodwillAmortisationReversalPastImpairments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NegativeGoodwillAmortisationReversalPastImpairments" xml:lang="en" id="label_NegativeGoodwillAmortisationReversalPastImpairments">Negative goodwill, amortisation, reversal of past impairments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NegativeGoodwillAmortisationReversalPastImpairments" xlink:to="label_NegativeGoodwillAmortisationReversalPastImpairments" xlink:title="label: NegativeGoodwillAmortisationReversalPastImpairments to label_NegativeGoodwillAmortisationReversalPastImpairments"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NegativeGoodwillCostOrValuation" xlink:label="NegativeGoodwillCostOrValuation" xlink:title="NegativeGoodwillCostOrValuation"/>
    <label xlink:type="resource" xlink:label="label_NegativeGoodwillCostOrValuation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NegativeGoodwillCostOrValuation" xml:lang="en" id="label_NegativeGoodwillCostOrValuation">Negative goodwill, at cost or valuation</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NegativeGoodwillCostOrValuation" xlink:to="label_NegativeGoodwillCostOrValuation" xlink:title="label: NegativeGoodwillCostOrValuation to label_NegativeGoodwillCostOrValuation"/>
    <label xlink:type="resource" xlink:label="label_NegativeGoodwillCostOrValuation_2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_NegativeGoodwillCostOrValuation" xml:lang="en" id="label_NegativeGoodwillCostOrValuation_2">Negative goodwill, at cost or valuation, end of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NegativeGoodwillCostOrValuation" xlink:to="label_NegativeGoodwillCostOrValuation_2" xlink:title="label: NegativeGoodwillCostOrValuation to label_NegativeGoodwillCostOrValuation"/>
    <label xlink:type="resource" xlink:label="label_NegativeGoodwillCostOrValuation_3" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="label_NegativeGoodwillCostOrValuation" xml:lang="en" id="label_NegativeGoodwillCostOrValuation_3">Negative goodwill, at cost or valuation, beginning of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NegativeGoodwillCostOrValuation" xlink:to="label_NegativeGoodwillCostOrValuation_3" xlink:title="label: NegativeGoodwillCostOrValuation to label_NegativeGoodwillCostOrValuation"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NegativeGoodwillDisposals" xlink:label="NegativeGoodwillDisposals" xlink:title="NegativeGoodwillDisposals"/>
    <label xlink:type="resource" xlink:label="label_NegativeGoodwillDisposals" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NegativeGoodwillDisposals" xml:lang="en" id="label_NegativeGoodwillDisposals">Negative goodwill, disposals</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NegativeGoodwillDisposals" xlink:to="label_NegativeGoodwillDisposals" xlink:title="label: NegativeGoodwillDisposals to label_NegativeGoodwillDisposals"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NegativeGoodwillImpairmentLosses" xlink:label="NegativeGoodwillImpairmentLosses" xlink:title="NegativeGoodwillImpairmentLosses"/>
    <label xlink:type="resource" xlink:label="label_NegativeGoodwillImpairmentLosses" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NegativeGoodwillImpairmentLosses" xml:lang="en" id="label_NegativeGoodwillImpairmentLosses">Negative goodwill, impairment losses</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NegativeGoodwillImpairmentLosses" xlink:to="label_NegativeGoodwillImpairmentLosses" xlink:title="label: NegativeGoodwillImpairmentLosses to label_NegativeGoodwillImpairmentLosses"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NegativeGoodwillIncreaseDecreaseFromExchangeAdjustment" xlink:label="NegativeGoodwillIncreaseDecreaseFromExchangeAdjustment" xlink:title="NegativeGoodwillIncreaseDecreaseFromExchangeAdjustment"/>
    <label xlink:type="resource" xlink:label="label_NegativeGoodwillIncreaseDecreaseFromExchangeAdjustment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NegativeGoodwillIncreaseDecreaseFromExchangeAdjustment" xml:lang="en" id="label_NegativeGoodwillIncreaseDecreaseFromExchangeAdjustment">Negative goodwill, increase (decrease) from exchange adjustment</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NegativeGoodwillIncreaseDecreaseFromExchangeAdjustment" xlink:to="label_NegativeGoodwillIncreaseDecreaseFromExchangeAdjustment" xlink:title="label: NegativeGoodwillIncreaseDecreaseFromExchangeAdjustment to label_NegativeGoodwillIncreaseDecreaseFromExchangeAdjustment"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NegativeGoodwillIncreaseDecreaseFromTransfersBetweenItems" xlink:label="NegativeGoodwillIncreaseDecreaseFromTransfersBetweenItems" xlink:title="NegativeGoodwillIncreaseDecreaseFromTransfersBetweenItems"/>
    <label xlink:type="resource" xlink:label="label_NegativeGoodwillIncreaseDecreaseFromTransfersBetweenItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NegativeGoodwillIncreaseDecreaseFromTransfersBetweenItems" xml:lang="en" id="label_NegativeGoodwillIncreaseDecreaseFromTransfersBetweenItems">Negative goodwill, increase (decrease) from transfers between items</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NegativeGoodwillIncreaseDecreaseFromTransfersBetweenItems" xlink:to="label_NegativeGoodwillIncreaseDecreaseFromTransfersBetweenItems" xlink:title="label: NegativeGoodwillIncreaseDecreaseFromTransfersBetweenItems to label_NegativeGoodwillIncreaseDecreaseFromTransfersBetweenItems"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NegativeGoodwillMovementAnalysis" xlink:label="NegativeGoodwillMovementAnalysis" xlink:title="NegativeGoodwillMovementAnalysis"/>
    <label xlink:type="resource" xlink:label="label_NegativeGoodwillMovementAnalysis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NegativeGoodwillMovementAnalysis" xml:lang="en" id="label_NegativeGoodwillMovementAnalysis">Negative Goodwill</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NegativeGoodwillMovementAnalysis" xlink:to="label_NegativeGoodwillMovementAnalysis" xlink:title="label: NegativeGoodwillMovementAnalysis to label_NegativeGoodwillMovementAnalysis"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NegativeGoodwillReversalPastImpairments" xlink:label="NegativeGoodwillReversalPastImpairments" xlink:title="NegativeGoodwillReversalPastImpairments"/>
    <label xlink:type="resource" xlink:label="label_NegativeGoodwillReversalPastImpairments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NegativeGoodwillReversalPastImpairments" xml:lang="en" id="label_NegativeGoodwillReversalPastImpairments">Negative goodwill, reversal of past impairments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NegativeGoodwillReversalPastImpairments" xlink:to="label_NegativeGoodwillReversalPastImpairments" xlink:title="label: NegativeGoodwillReversalPastImpairments to label_NegativeGoodwillReversalPastImpairments"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_TotalNetAssetsLiabilities" xlink:label="TotalNetAssetsLiabilities" xlink:title="TotalNetAssetsLiabilities"/>
    <label xlink:type="resource" xlink:label="label_TotalNetAssetsLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_TotalNetAssetsLiabilities" xml:lang="en" id="label_TotalNetAssetsLiabilities">Net assets (liabilities)</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="TotalNetAssetsLiabilities" xlink:to="label_TotalNetAssetsLiabilities" xlink:title="label: TotalNetAssetsLiabilities to label_TotalNetAssetsLiabilities"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NetCashFlowOutflowFromAcquisitionsDisposals" xlink:label="NetCashFlowOutflowFromAcquisitionsDisposals" xlink:title="NetCashFlowOutflowFromAcquisitionsDisposals"/>
    <label xlink:type="resource" xlink:label="label_NetCashFlowOutflowFromAcquisitionsDisposals" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NetCashFlowOutflowFromAcquisitionsDisposals" xml:lang="en" id="label_NetCashFlowOutflowFromAcquisitionsDisposals">Net cash inflow (outflow) from acquisitions and disposals</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetCashFlowOutflowFromAcquisitionsDisposals" xlink:to="label_NetCashFlowOutflowFromAcquisitionsDisposals" xlink:title="label: NetCashFlowOutflowFromAcquisitionsDisposals to label_NetCashFlowOutflowFromAcquisitionsDisposals"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NetCashFlowOutflowFromCapitalExpenditureFinancialInvestment" xlink:label="NetCashFlowOutflowFromCapitalExpenditureFinancialInvestment" xlink:title="NetCashFlowOutflowFromCapitalExpenditureFinancialInvestment"/>
    <label xlink:type="resource" xlink:label="label_NetCashFlowOutflowFromCapitalExpenditureFinancialInvestment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NetCashFlowOutflowFromCapitalExpenditureFinancialInvestment" xml:lang="en" id="label_NetCashFlowOutflowFromCapitalExpenditureFinancialInvestment">Net cash inflow (outflow) from capital expenditure and financial investment</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetCashFlowOutflowFromCapitalExpenditureFinancialInvestment" xlink:to="label_NetCashFlowOutflowFromCapitalExpenditureFinancialInvestment" xlink:title="label: NetCashFlowOutflowFromCapitalExpenditureFinancialInvestment to label_NetCashFlowOutflowFromCapitalExpenditureFinancialInvestment"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NetCashFlowOutflowFromFinancing" xlink:label="NetCashFlowOutflowFromFinancing" xlink:title="NetCashFlowOutflowFromFinancing"/>
    <label xlink:type="resource" xlink:label="label_NetCashFlowOutflowFromFinancing" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NetCashFlowOutflowFromFinancing" xml:lang="en" id="label_NetCashFlowOutflowFromFinancing">Net cash inflow (outflow) from financing</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetCashFlowOutflowFromFinancing" xlink:to="label_NetCashFlowOutflowFromFinancing" xlink:title="label: NetCashFlowOutflowFromFinancing to label_NetCashFlowOutflowFromFinancing"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NetCashFlowOutflowFromManagementChangeInLiquidResources" xlink:label="NetCashFlowOutflowFromManagementChangeInLiquidResources" xlink:title="NetCashFlowOutflowFromManagementChangeInLiquidResources"/>
    <label xlink:type="resource" xlink:label="label_NetCashFlowOutflowFromManagementChangeInLiquidResources" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NetCashFlowOutflowFromManagementChangeInLiquidResources" xml:lang="en" id="label_NetCashFlowOutflowFromManagementChangeInLiquidResources">Net cash inflow (outflow) from management of liquid resources</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetCashFlowOutflowFromManagementChangeInLiquidResources" xlink:to="label_NetCashFlowOutflowFromManagementChangeInLiquidResources" xlink:title="label: NetCashFlowOutflowFromManagementChangeInLiquidResources to label_NetCashFlowOutflowFromManagementChangeInLiquidResources"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NetCashFlowOutflowFromOperatingActivities" xlink:label="NetCashFlowOutflowFromOperatingActivities" xlink:title="NetCashFlowOutflowFromOperatingActivities"/>
    <label xlink:type="resource" xlink:label="label_NetCashFlowOutflowFromOperatingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NetCashFlowOutflowFromOperatingActivities" xml:lang="en" id="label_NetCashFlowOutflowFromOperatingActivities">Net cash inflow (outflow) from operating activities</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetCashFlowOutflowFromOperatingActivities" xlink:to="label_NetCashFlowOutflowFromOperatingActivities" xlink:title="label: NetCashFlowOutflowFromOperatingActivities to label_NetCashFlowOutflowFromOperatingActivities"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NetCashFlowOutflowFromReturnsOnInvestmentsServicingFinance" xlink:label="NetCashFlowOutflowFromReturnsOnInvestmentsServicingFinance" xlink:title="NetCashFlowOutflowFromReturnsOnInvestmentsServicingFinance"/>
    <label xlink:type="resource" xlink:label="label_NetCashFlowOutflowFromReturnsOnInvestmentsServicingFinance" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NetCashFlowOutflowFromReturnsOnInvestmentsServicingFinance" xml:lang="en" id="label_NetCashFlowOutflowFromReturnsOnInvestmentsServicingFinance">Net cash inflow (outflow) from returns on investments and servicing of finance</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetCashFlowOutflowFromReturnsOnInvestmentsServicingFinance" xlink:to="label_NetCashFlowOutflowFromReturnsOnInvestmentsServicingFinance" xlink:title="label: NetCashFlowOutflowFromReturnsOnInvestmentsServicingFinance to label_NetCashFlowOutflowFromReturnsOnInvestmentsServicingFinance"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NetCashOverdraftsDisposedWithSubsidiaries" xlink:label="NetCashOverdraftsDisposedWithSubsidiaries" xlink:title="NetCashOverdraftsDisposedWithSubsidiaries"/>
    <label xlink:type="resource" xlink:label="label_NetCashOverdraftsDisposedWithSubsidiaries" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NetCashOverdraftsDisposedWithSubsidiaries" xml:lang="en" id="label_NetCashOverdraftsDisposedWithSubsidiaries">Net cash (overdrafts) disposed with subsidiaries</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetCashOverdraftsDisposedWithSubsidiaries" xlink:to="label_NetCashOverdraftsDisposedWithSubsidiaries" xlink:title="label: NetCashOverdraftsDisposedWithSubsidiaries to label_NetCashOverdraftsDisposedWithSubsidiaries"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NetCostLessForeseeableLosses" xlink:label="NetCostLessForeseeableLosses" xlink:title="NetCostLessForeseeableLosses"/>
    <label xlink:type="resource" xlink:label="label_NetCostLessForeseeableLosses" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NetCostLessForeseeableLosses" xml:lang="en" id="label_NetCostLessForeseeableLosses">Net cost less foreseeable losses</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetCostLessForeseeableLosses" xlink:to="label_NetCostLessForeseeableLosses" xlink:title="label: NetCostLessForeseeableLosses to label_NetCostLessForeseeableLosses"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NetCurrentAssetsLiabilities" xlink:label="NetCurrentAssetsLiabilities" xlink:title="NetCurrentAssetsLiabilities"/>
    <label xlink:type="resource" xlink:label="label_NetCurrentAssetsLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NetCurrentAssetsLiabilities" xml:lang="en" id="label_NetCurrentAssetsLiabilities">Net current assets (liabilities)</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetCurrentAssetsLiabilities" xlink:to="label_NetCurrentAssetsLiabilities" xlink:title="label: NetCurrentAssetsLiabilities to label_NetCurrentAssetsLiabilities"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NetDebtFunds" xlink:label="NetDebtFunds" xlink:title="NetDebtFunds"/>
    <label xlink:type="resource" xlink:label="label_NetDebtFunds" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NetDebtFunds" xml:lang="en" id="label_NetDebtFunds">Net debt (funds)</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetDebtFunds" xlink:to="label_NetDebtFunds" xlink:title="label: NetDebtFunds to label_NetDebtFunds"/>
    <label xlink:type="resource" xlink:label="label_NetDebtFunds_2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_NetDebtFunds" xml:lang="en" id="label_NetDebtFunds_2">Net debt (funds), end of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetDebtFunds" xlink:to="label_NetDebtFunds_2" xlink:title="label: NetDebtFunds to label_NetDebtFunds"/>
    <label xlink:type="resource" xlink:label="label_NetDebtFunds_3" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="label_NetDebtFunds" xml:lang="en" id="label_NetDebtFunds_3">Net debt (funds), beginning of period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetDebtFunds" xlink:to="label_NetDebtFunds_3" xlink:title="label: NetDebtFunds to label_NetDebtFunds"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NetDebtFundsAnalysis" xlink:label="NetDebtFundsAnalysis" xlink:title="NetDebtFundsAnalysis"/>
    <label xlink:type="resource" xlink:label="label_NetDebtFundsAnalysis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NetDebtFundsAnalysis" xml:lang="en" id="label_NetDebtFundsAnalysis">Analysis of changes in net debt (funds)</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetDebtFundsAnalysis" xlink:to="label_NetDebtFundsAnalysis" xlink:title="label: NetDebtFundsAnalysis to label_NetDebtFundsAnalysis"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NetGoodwill" xlink:label="NetGoodwill" xlink:title="NetGoodwill"/>
    <label xlink:type="resource" xlink:label="label_NetGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NetGoodwill" xml:lang="en" id="label_NetGoodwill">Goodwill</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetGoodwill" xlink:to="label_NetGoodwill" xlink:title="label: NetGoodwill to label_NetGoodwill"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NetGoodwillAdditions" xlink:label="NetGoodwillAdditions" xlink:title="NetGoodwillAdditions"/>
    <label xlink:type="resource" xlink:label="label_NetGoodwillAdditions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NetGoodwillAdditions" xml:lang="en" id="label_NetGoodwillAdditions">Goodwill, additions</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetGoodwillAdditions" xlink:to="label_NetGoodwillAdditions" xlink:title="label: NetGoodwillAdditions to label_NetGoodwillAdditions"/>
    <loc xlink:type="locator" xlink:href="ie-pt-2006-12-31-schema.xsd#ie-pt-sch_NetGoodwillAggregateAmortisationImpairment" xlink:label="NetGoodwillAggregateAmortisationImpairment" xlink:title="NetGoodwillAggregateAmortisationImpairment"/>
    <label xlink:type="resource" xlink:label="label_NetGoodwillAggregateAmortisationImpairment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NetGoodwillAggregateAmortisationImpairment" xml:lang="en" id="label_NetGoodwillAggregateAmortisationImpairment">Goodwill, aggregate amortisation and impairment</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetGoodwillAggregateAmortisationImpairment" xlink:to="label_NetGoodwillAggregateAmortisationImpairment" xlink:title="label: NetGoodwillAggregateAmortisationImpairment to label_NetGoodwillAggregateAmortisationImpairment"/>
    <label xlink:type="resource" xlink:label="label_NetGoodwillAggregateAmortisationImpairment_2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_NetGoodwillAggregateAmortisationImpairment" xml:lan