<?xml version="1.0" encoding="UTF-8"?>


<!--  Irish GAAP statutory reports reference linkbase file for commercial and industrial reporting entities - working draft -->

<!-- (c) 2007 Business Reporting Ireland Limited.  All Rights Reserved. -->
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      <ref:Name>Companies Act</ref:Name>
      <ref:Number>1990</ref:Number>
      <ref:Section>193</ref:Section>
      <ref:Subsection>4A</ref:Subsection>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="AuditReportOpinion" xlink:to="reference_AuditReportOpinion_8" xlink:title="reference: AuditReportOpinion to reference_AuditReportOpinion"/>
    <link:reference xlink:type="resource" xlink:label="reference_AuditReportOpinion_9" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_AuditReportOpinion" id="reference_AuditReportOpinion_9">
      <ref:Publisher>Government of Ireland</ref:Publisher>
      <ref:Name>Companies Act</ref:Name>
      <ref:Number>1990</ref:Number>
      <ref:Section>193</ref:Section>
      <ref:Subsection>4B</ref:Subsection>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="AuditReportOpinion" xlink:to="reference_AuditReportOpinion_9" xlink:title="reference: AuditReportOpinion to reference_AuditReportOpinion"/>
    <link:reference xlink:type="resource" xlink:label="reference_AuditReportOpinion_10" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_AuditReportOpinion" id="reference_AuditReportOpinion_10">
      <ref:Publisher>Government of Ireland</ref:Publisher>
      <ref:Name>Companies Act</ref:Name>
      <ref:Number>1990</ref:Number>
      <ref:Section>193</ref:Section>
      <ref:Subsection>4C</ref:Subsection>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="AuditReportOpinion" xlink:to="reference_AuditReportOpinion_10" xlink:title="reference: AuditReportOpinion to reference_AuditReportOpinion"/>
    <link:loc xlink:type="locator" xlink:href="ie-rep-2006-12-31-schema.xsd#ie-rep-sch_DateOpinion" xlink:label="DateOpinion" xlink:title="DateOpinion"/>
    <link:reference xlink:type="resource" xlink:label="reference_DateOpinion" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_DateOpinion" id="reference_DateOpinion">
      <ref:Publisher>Auditing Practices Board</ref:Publisher>
      <ref:Name>ISA</ref:Name>
      <ref:Number>700</ref:Number>
      <ref:Paragraph>23</ref:Paragraph>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="DateOpinion" xlink:to="reference_DateOpinion" xlink:title="reference: DateOpinion to reference_DateOpinion"/>
    <link:reference xlink:type="resource" xlink:label="reference_DateOpinion_2" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_DateOpinion" id="reference_DateOpinion_2">
      <ref:Publisher>Government of Ireland</ref:Publisher>
      <ref:Name>Companies Act</ref:Name>
      <ref:Number>1990</ref:Number>
      <ref:Section>193</ref:Section>
      <ref:Subsection>4D</ref:Subsection>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="DateOpinion" xlink:to="reference_DateOpinion_2" xlink:title="reference: DateOpinion to reference_DateOpinion"/>
    <link:loc xlink:type="locator" xlink:href="ie-rep-2006-12-31-schema.xsd#ie-rep-sch_AuditorInformation" xlink:label="AuditorInformation" xlink:title="AuditorInformation"/>
    <link:reference xlink:type="resource" xlink:label="reference_AuditorInformation" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_AuditorInformation" id="reference_AuditorInformation">
      <ref:Publisher>Auditing Practices Board</ref:Publisher>
      <ref:Name>ISA</ref:Name>
      <ref:Number>700</ref:Number>
      <ref:Paragraph>26</ref:Paragraph>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="AuditorInformation" xlink:to="reference_AuditorInformation" xlink:title="reference: AuditorInformation to reference_AuditorInformation"/>
    <link:reference xlink:type="resource" xlink:label="reference_AuditorInformation_2" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_AuditorInformation" id="reference_AuditorInformation_2">
      <ref:Publisher>Government of Ireland</ref:Publisher>
      <ref:Name>Companies Act</ref:Name>
      <ref:Number>1990</ref:Number>
      <ref:Section>193</ref:Section>
      <ref:Subsection>4D</ref:Subsection>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="AuditorInformation" xlink:to="reference_AuditorInformation_2" xlink:title="reference: AuditorInformation to reference_AuditorInformation"/>
    <link:loc xlink:type="locator" xlink:href="ie-rep-2006-12-31-schema.xsd#ie-rep-sch_NameAuditFirm" xlink:label="NameAuditFirm" xlink:title="NameAuditFirm"/>
    <link:reference xlink:type="resource" xlink:label="reference_NameAuditFirm" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_NameAuditFirm" id="reference_NameAuditFirm">
      <ref:Publisher>Auditing Practices Board</ref:Publisher>
      <ref:Name>ISA</ref:Name>
      <ref:Number>700</ref:Number>
      <ref:Paragraph>26</ref:Paragraph>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="NameAuditFirm" xlink:to="reference_NameAuditFirm" xlink:title="reference: NameAuditFirm to reference_NameAuditFirm"/>
    <link:reference xlink:type="resource" xlink:label="reference_NameAuditFirm_2" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_NameAuditFirm" id="reference_NameAuditFirm_2">
      <ref:Publisher>Government of Ireland</ref:Publisher>
      <ref:Name>Companies Act</ref:Name>
      <ref:Number>1990</ref:Number>
      <ref:Section>193</ref:Section>
      <ref:Subsection>4D</ref:Subsection>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="NameAuditFirm" xlink:to="reference_NameAuditFirm_2" xlink:title="reference: NameAuditFirm to reference_NameAuditFirm"/>
    <link:loc xlink:type="locator" xlink:href="ie-rep-2006-12-31-schema.xsd#ie-rep-sch_DescriptionAuditFirm" xlink:label="DescriptionAuditFirm" xlink:title="DescriptionAuditFirm"/>
    <link:reference xlink:type="resource" xlink:label="reference_DescriptionAuditFirm" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_DescriptionAuditFirm" id="reference_DescriptionAuditFirm">
      <ref:Publisher>Auditing Practices Board</ref:Publisher>
      <ref:Name>ISA</ref:Name>
      <ref:Number>700</ref:Number>
      <ref:Paragraph>26</ref:Paragraph>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="DescriptionAuditFirm" xlink:to="reference_DescriptionAuditFirm" xlink:title="reference: DescriptionAuditFirm to reference_DescriptionAuditFirm"/>
    <link:reference xlink:type="resource" xlink:label="reference_DescriptionAuditFirm_2" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_DescriptionAuditFirm" id="reference_DescriptionAuditFirm_2">
      <ref:Publisher>Government of Ireland</ref:Publisher>
      <ref:Name>Companies Act</ref:Name>
      <ref:Number>1963</ref:Number>
      <ref:Section>193</ref:Section>
      <ref:Subsection>4D</ref:Subsection>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="DescriptionAuditFirm" xlink:to="reference_DescriptionAuditFirm_2" xlink:title="reference: DescriptionAuditFirm to reference_DescriptionAuditFirm"/>
    <link:loc xlink:type="locator" xlink:href="ie-rep-2006-12-31-schema.xsd#ie-rep-sch_NameAuditingPartner" xlink:label="NameAuditingPartner" xlink:title="NameAuditingPartner"/>
    <link:reference xlink:type="resource" xlink:label="reference_NameAuditingPartner" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_NameAuditingPartner" id="reference_NameAuditingPartner">
      <ref:Publisher>Auditing Practices Board</ref:Publisher>
      <ref:Name>ISA</ref:Name>
      <ref:Number>700</ref:Number>
      <ref:Paragraph>26</ref:Paragraph>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="NameAuditingPartner" xlink:to="reference_NameAuditingPartner" xlink:title="reference: NameAuditingPartner to reference_NameAuditingPartner"/>
    <link:loc xlink:type="locator" xlink:href="ie-rep-2006-12-31-schema.xsd#ie-rep-sch_NameOfficePerformingAudit" xlink:label="NameOfficePerformingAudit" xlink:title="NameOfficePerformingAudit"/>
    <link:reference xlink:type="resource" xlink:label="reference_NameOfficePerformingAudit" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_NameOfficePerformingAudit" id="reference_NameOfficePerformingAudit">
      <ref:Publisher>Auditing Practices Board</ref:Publisher>
      <ref:Name>ISA</ref:Name>
      <ref:Number>700</ref:Number>
      <ref:Paragraph>25</ref:Paragraph>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="NameOfficePerformingAudit" xlink:to="reference_NameOfficePerformingAudit" xlink:title="reference: NameOfficePerformingAudit to reference_NameOfficePerformingAudit"/>
    <link:loc xlink:type="locator" xlink:href="ie-rep-2006-12-31-schema.xsd#ie-rep-sch_DateApproval" xlink:label="DateApproval" xlink:title="DateApproval"/>
    <link:reference xlink:type="resource" xlink:label="reference_DateApproval" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_DateApproval" id="reference_DateApproval">
      <ref:Publisher>ICAI</ref:Publisher>
      <ref:Name>FRS</ref:Name>
      <ref:Number>21</ref:Number>
      <ref:Paragraph>17</ref:Paragraph>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="DateApproval" xlink:to="reference_DateApproval" xlink:title="reference: DateApproval to reference_DateApproval"/>
    <link:loc xlink:type="locator" xlink:href="ie-rep-2006-12-31-schema.xsd#ie-rep-sch_ApprovalDetails" xlink:label="ApprovalDetails" xlink:title="ApprovalDetails"/>
    <link:reference xlink:type="resource" xlink:label="reference_ApprovalDetails" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_ApprovalDetails" id="reference_ApprovalDetails">
      <ref:Publisher>Government of Ireland</ref:Publisher>
      <ref:Name>Companies Act</ref:Name>
      <ref:Number>1963</ref:Number>
      <ref:Section>156</ref:Section>
      <ref:Subsection>1</ref:Subsection>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="ApprovalDetails" xlink:to="reference_ApprovalDetails" xlink:title="reference: ApprovalDetails to reference_ApprovalDetails"/>
    <link:loc xlink:type="locator" xlink:href="ie-rep-2006-12-31-schema.xsd#ie-rep-sch_NameApprovingDirector" xlink:label="NameApprovingDirector" xlink:title="NameApprovingDirector"/>
    <link:reference xlink:type="resource" xlink:label="reference_NameApprovingDirector" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_NameApprovingDirector" id="reference_NameApprovingDirector">
      <ref:Publisher>Government of Ireland</ref:Publisher>
      <ref:Name>Companies Act</ref:Name>
      <ref:Number>1963</ref:Number>
      <ref:Section>156</ref:Section>
      <ref:Subsection>1</ref:Subsection>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="NameApprovingDirector" xlink:to="reference_NameApprovingDirector" xlink:title="reference: NameApprovingDirector to reference_NameApprovingDirector"/>
    <link:loc xlink:type="locator" xlink:href="ie-rep-2006-12-31-schema.xsd#ie-rep-sch_PositionApprovingDirector" xlink:label="PositionApprovingDirector" xlink:title="PositionApprovingDirector"/>
    <link:reference xlink:type="resource" xlink:label="reference_PositionApprovingDirector" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_PositionApprovingDirector" id="reference_PositionApprovingDirector">
      <ref:Publisher>Government of Ireland</ref:Publisher>
      <ref:Name>Companies Act</ref:Name>
      <ref:Number>1963</ref:Number>
      <ref:Section>156</ref:Section>
      <ref:Subsection>1</ref:Subsection>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="PositionApprovingDirector" xlink:to="reference_PositionApprovingDirector" xlink:title="reference: PositionApprovingDirector to reference_PositionApprovingDirector"/>
    <link:loc xlink:type="locator" xlink:href="ie-rep-2006-12-31-schema.xsd#ie-rep-sch_DirectorsResponsibilitiesStatement" xlink:label="DirectorsResponsibilitiesStatement" xlink:title="DirectorsResponsibilitiesStatement"/>
    <link:reference xlink:type="resource" xlink:label="reference_DirectorsResponsibilitiesStatement" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_DirectorsResponsibilitiesStatement" id="reference_DirectorsResponsibilitiesStatement">
      <ref:Publisher>Auditing Practices Board</ref:Publisher>
      <ref:Name>ISA</ref:Name>
      <ref:Number>700</ref:Number>
      <ref:Paragraph>9</ref:Paragraph>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="DirectorsResponsibilitiesStatement" xlink:to="reference_DirectorsResponsibilitiesStatement" xlink:title="reference: DirectorsResponsibilitiesStatement to reference_DirectorsResponsibilitiesStatement"/>
    <link:loc xlink:type="locator" xlink:href="ie-rep-2006-12-31-schema.xsd#ie-rep-sch_AccountantsReport" xlink:label="AccountantsReport" xlink:title="AccountantsReport"/>
    <link:reference xlink:type="resource" xlink:label="reference_AccountantsReport" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_AccountantsReport" id="reference_AccountantsReport">
      <ref:Publisher>Abstract - no reference</ref:Publisher>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="AccountantsReport" xlink:to="reference_AccountantsReport" xlink:title="reference: AccountantsReport to reference_AccountantsReport"/>
    <link:loc xlink:type="locator" xlink:href="ie-rep-2006-12-31-schema.xsd#ie-rep-sch_ApprovalByBoard" xlink:label="ApprovalByBoard" xlink:title="ApprovalByBoard"/>
    <link:reference xlink:type="resource" xlink:label="reference_ApprovalByBoard" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_ApprovalByBoard" id="reference_ApprovalByBoard">
      <ref:Publisher>Abstract - no reference</ref:Publisher>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="ApprovalByBoard" xlink:to="reference_ApprovalByBoard" xlink:title="reference: ApprovalByBoard to reference_ApprovalByBoard"/>
    <link:loc xlink:type="locator" xlink:href="ie-rep-2006-12-31-schema.xsd#ie-rep-sch_AuditorReport" xlink:label="AuditorReport" xlink:title="AuditorReport"/>
    <link:reference xlink:type="resource" xlink:label="reference_AuditorReport" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_AuditorReport" id="reference_AuditorReport">
      <ref:Publisher>Abstract - no reference</ref:Publisher>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="AuditorReport" xlink:to="reference_AuditorReport" xlink:title="reference: AuditorReport to reference_AuditorReport"/>
    <link:loc xlink:type="locator" xlink:href="ie-rep-2006-12-31-schema.xsd#ie-rep-sch_DirectorsReport" xlink:label="DirectorsReport" xlink:title="DirectorsReport"/>
    <link:reference xlink:type="resource" xlink:label="reference_DirectorsReport" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_DirectorsReport" id="reference_DirectorsReport">
      <ref:Publisher>Abstract - no reference</ref:Publisher>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="DirectorsReport" xlink:to="reference_DirectorsReport" xlink:title="reference: DirectorsReport to reference_DirectorsReport"/>
    <link:loc xlink:type="locator" xlink:href="ie-rep-2006-12-31-schema.xsd#ie-rep-sch_FinancialStatementDates" xlink:label="FinancialStatementDates" xlink:title="FinancialStatementDates"/>
    <link:reference xlink:type="resource" xlink:label="reference_FinancialStatementDates" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_FinancialStatementDates" id="reference_FinancialStatementDates">
      <ref:Publisher>Abstract - no reference</ref:Publisher>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="FinancialStatementDates" xlink:to="reference_FinancialStatementDates" xlink:title="reference: FinancialStatementDates to reference_FinancialStatementDates"/>
    <link:loc xlink:type="locator" xlink:href="ie-rep-2006-12-31-schema.xsd#ie-rep-sch_StatementOfDirectorsResponsibilities" xlink:label="StatementOfDirectorsResponsibilities" xlink:title="StatementOfDirectorsResponsibilities"/>
    <link:reference xlink:type="resource" xlink:label="reference_StatementOfDirectorsResponsibilities" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_StatementOfDirectorsResponsibilities" id="reference_StatementOfDirectorsResponsibilities">
      <ref:Publisher>Abstract - no reference</ref:Publisher>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="StatementOfDirectorsResponsibilities" xlink:to="reference_StatementOfDirectorsResponsibilities" xlink:title="reference: StatementOfDirectorsResponsibilities to reference_StatementOfDirectorsResponsibilities"/>
    <link:loc xlink:type="locator" xlink:href="ie-rep-2006-12-31-schema.xsd#ie-rep-sch_AddressLine1" xlink:label="AddressLine1" xlink:title="AddressLine1"/>
    <link:reference xlink:type="resource" xlink:label="reference_AddressLine1" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_AddressLine1" id="reference_AddressLine1">
      <ref:Publisher>No regulatory reference</ref:Publisher>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="AddressLine1" xlink:to="reference_AddressLine1" xlink:title="reference: AddressLine1 to reference_AddressLine1"/>
    <link:loc xlink:type="locator" xlink:href="ie-rep-2006-12-31-schema.xsd#ie-rep-sch_AddressLine2" xlink:label="AddressLine2" xlink:title="AddressLine2"/>
    <link:reference xlink:type="resource" xlink:label="reference_AddressLine2" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_AddressLine2" id="reference_AddressLine2">
      <ref:Publisher>No regulatory reference</ref:Publisher>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="AddressLine2" xlink:to="reference_AddressLine2" xlink:title="reference: AddressLine2 to reference_AddressLine2"/>
    <link:loc xlink:type="locator" xlink:href="ie-rep-2006-12-31-schema.xsd#ie-rep-sch_AddressLine3" xlink:label="AddressLine3" xlink:title="AddressLine3"/>
    <link:reference xlink:type="resource" xlink:label="reference_AddressLine3" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_AddressLine3" id="reference_AddressLine3">
      <ref:Publisher>No regulatory reference</ref:Publisher>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="AddressLine3" xlink:to="reference_AddressLine3" xlink:title="reference: AddressLine3 to reference_AddressLine3"/>
    <link:loc xlink:type="locator" xlink:href="ie-rep-2006-12-31-schema.xsd#ie-rep-sch_CityOrTownAddress" xlink:label="CityOrTownAddress" xlink:title="CityOrTownAddress"/>
    <link:reference xlink:type="resource" xlink:label="reference_CityOrTownAddress" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_CityOrTownAddress" id="reference_CityOrTownAddress">
      <ref:Publisher>No regulatory reference</ref:Publisher>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="CityOrTownAddress" xlink:to="reference_CityOrTownAddress" xlink:title="reference: CityOrTownAddress to reference_CityOrTownAddress"/>
    <link:loc xlink:type="locator" xlink:href="ie-rep-2006-12-31-schema.xsd#ie-rep-sch_StateOrProvinceAddress" xlink:label="StateOrProvinceAddress" xlink:title="StateOrProvinceAddress"/>
    <link:reference xlink:type="resource" xlink:label="reference_StateOrProvinceAddress" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_StateOrProvinceAddress" id="reference_StateOrProvinceAddress">
      <ref:Publisher>No regulatory reference</ref:Publisher>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="StateOrProvinceAddress" xlink:to="reference_StateOrProvinceAddress" xlink:title="reference: StateOrProvinceAddress to reference_StateOrProvinceAddress"/>
    <link:loc xlink:type="locator" xlink:href="ie-rep-2006-12-31-schema.xsd#ie-rep-sch_CountyOrRegionAddress" xlink:label="CountyOrRegionAddress" xlink:title="CountyOrRegionAddress"/>
    <link:reference xlink:type="resource" xlink:label="reference_CountyOrRegionAddress" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_CountyOrRegionAddress" id="reference_CountyOrRegionAddress">
      <ref:Publisher>No regulatory reference</ref:Publisher>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="CountyOrRegionAddress" xlink:to="reference_CountyOrRegionAddress" xlink:title="reference: CountyOrRegionAddress to reference_CountyOrRegionAddress"/>
    <link:loc xlink:type="locator" xlink:href="ie-rep-2006-12-31-schema.xsd#ie-rep-sch_ZipOrPostalCodeAddress" xlink:label="ZipOrPostalCodeAddress" xlink:title="ZipOrPostalCodeAddress"/>
    <link:reference xlink:type="resource" xlink:label="reference_ZipOrPostalCodeAddress" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_ZipOrPostalCodeAddress" id="reference_ZipOrPostalCodeAddress">
      <ref:Publisher>No regulatory reference</ref:Publisher>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="ZipOrPostalCodeAddress" xlink:to="reference_ZipOrPostalCodeAddress" xlink:title="reference: ZipOrPostalCodeAddress to reference_ZipOrPostalCodeAddress"/>
    <link:loc xlink:type="locator" xlink:href="ie-rep-2006-12-31-schema.xsd#ie-rep-sch_CountryAddress" xlink:label="CountryAddress" xlink:title="CountryAddress"/>
    <link:reference xlink:type="resource" xlink:label="reference_CountryAddress" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_CountryAddress" id="reference_CountryAddress">
      <ref:Publisher>No regulatory reference</ref:Publisher>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="CountryAddress" xlink:to="reference_CountryAddress" xlink:title="reference: CountryAddress to reference_CountryAddress"/>
    <link:loc xlink:type="locator" xlink:href="ie-rep-2006-12-31-schema.xsd#ie-rep-sch_OpeningBalanceSheetDate" xlink:label="OpeningBalanceSheetDate" xlink:title="OpeningBalanceSheetDate"/>
    <link:reference xlink:type="resource" xlink:label="reference_OpeningBalanceSheetDate" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_OpeningBalanceSheetDate" id="reference_OpeningBalanceSheetDate">
      <ref:Publisher>No regulatory reference</ref:Publisher>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="OpeningBalanceSheetDate" xlink:to="reference_OpeningBalanceSheetDate" xlink:title="reference: OpeningBalanceSheetDate to reference_OpeningBalanceSheetDate"/>
    <link:loc xlink:type="locator" xlink:href="ie-rep-2006-12-31-schema.xsd#ie-rep-sch_ClosingBalanceSheetDate" xlink:label="ClosingBalanceSheetDate" xlink:title="ClosingBalanceSheetDate"/>
    <link:reference xlink:type="resource" xlink:label="reference_ClosingBalanceSheetDate" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_ClosingBalanceSheetDate" id="reference_ClosingBalanceSheetDate">
      <ref:Publisher>No regulatory reference</ref:Publisher>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="ClosingBalanceSheetDate" xlink:to="reference_ClosingBalanceSheetDate" xlink:title="reference: ClosingBalanceSheetDate to reference_ClosingBalanceSheetDate"/>
    <link:loc xlink:type="locator" xlink:href="ie-rep-2006-12-31-schema.xsd#ie-rep-sch_DirectorsReportDetailedItemText" xlink:label="DirectorsReportDetailedItemText" xlink:title="DirectorsReportDetailedItemText"/>
    <link:reference xlink:type="resource" xlink:label="reference_DirectorsReportDetailedItemText" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_DirectorsReportDetailedItemText" id="reference_DirectorsReportDetailedItemText">
      <ref:Publisher>Detailed references required</ref:Publisher>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="DirectorsReportDetailedItemText" xlink:to="reference_DirectorsReportDetailedItemText" xlink:title="reference: DirectorsReportDetailedItemText to reference_DirectorsReportDetailedItemText"/>
    <link:loc xlink:type="locator" xlink:href="ie-rep-2006-12-31-schema.xsd#ie-rep-sch_DirectorsReportDetailedItemTitle" xlink:label="DirectorsReportDetailedItemTitle" xlink:title="DirectorsReportDetailedItemTitle"/>
    <link:reference xlink:type="resource" xlink:label="reference_DirectorsReportDetailedItemTitle" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_DirectorsReportDetailedItemTitle" id="reference_DirectorsReportDetailedItemTitle">
      <ref:Publisher>Detailed references required</ref:Publisher>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="DirectorsReportDetailedItemTitle" xlink:to="reference_DirectorsReportDetailedItemTitle" xlink:title="reference: DirectorsReportDetailedItemTitle to reference_DirectorsReportDetailedItemTitle"/>
    <link:loc xlink:type="locator" xlink:href="ie-rep-2006-12-31-schema.xsd#ie-rep-sch_DirectorsReportPreamble" xlink:label="DirectorsReportPreamble" xlink:title="DirectorsReportPreamble"/>
    <link:reference xlink:type="resource" xlink:label="reference_DirectorsReportPreamble" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_DirectorsReportPreamble" id="reference_DirectorsReportPreamble">
      <ref:Publisher>Detailed references required</ref:Publisher>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="DirectorsReportPreamble" xlink:to="reference_DirectorsReportPreamble" xlink:title="reference: DirectorsReportPreamble to reference_DirectorsReportPreamble"/>
    <link:loc xlink:type="locator" xlink:href="ie-rep-2006-12-31-schema.xsd#ie-rep-sch_DirectorsReportDetailedDisclosure" xlink:label="DirectorsReportDetailedDisclosure" xlink:title="DirectorsReportDetailedDisclosure"/>
    <link:reference xlink:type="resource" xlink:label="reference_DirectorsReportDetailedDisclosure" xlink:role="http://www.xbrl.org/2003/role/disclosureRef" xlink:title="reference_DirectorsReportDetailedDisclosure" id="reference_DirectorsReportDetailedDisclosure">
      <ref:Publisher>Detailed references required</ref:Publisher>
    </link:reference>
    <link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="DirectorsReportDetailedDisclosure" xlink:to="reference_DirectorsReportDetailedDisclosure" xlink:title="reference: DirectorsReportDetailedDisclosure to reference_DirectorsReportDetailedDisclosure"/>
  </link:referenceLink>
</link:linkbase>
