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<link:definitionArc order='20.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/domain-member' xlink:from='loc_ResultsOfOperationsForOilAndGasProducingActivitiesByGeographicAreaLineItems' xlink:to='loc_ResultsOfOperationsEntitysShareOfEquityMethodInvesteesResultsOfOperationsForOilAndGasProducingActivities' xlink:type='arc' />
</link:definitionLink>
<!--Definition relationships for table DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesTable in presentation http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustries-->
<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesTable' xlink:type='extended'>
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<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesLineItems' xlink:label='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesLineItems' xlink:type='locator' />
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<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesTable' xlink:type='extended'>
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<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesAxis' xlink:label='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesAxis' xlink:type='locator' />
<link:definitionArc order='1.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/hypercube-dimension' xlink:from='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesTable' xlink:to='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesAxis' xlink:type='arc' />
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<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesTable' xlink:type='extended'>
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<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_GeographicAreaForOilAndGasDisclosuresDomain' xlink:label='loc_GeographicAreaForOilAndGasDisclosuresDomain' xlink:type='locator' />
<link:definitionArc order='1.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/dimension-domain' xlink:from='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesAxis' xlink:to='loc_GeographicAreaForOilAndGasDisclosuresDomain' xlink:type='arc' />
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<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesTable' xlink:type='extended'>
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesAxis' xlink:label='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesAxis' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_GeographicAreaForOilAndGasDisclosuresDomain' xlink:label='loc_GeographicAreaForOilAndGasDisclosuresDomain' xlink:type='locator' />
<link:definitionArc order='1.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/dimension-default' xlink:from='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesAxis' xlink:to='loc_GeographicAreaForOilAndGasDisclosuresDomain' xlink:type='arc' />
</link:definitionLink>
<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesTable' xlink:type='extended'>
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesLineItems' xlink:label='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesLineItems' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesStandardizedMeasureAbstract' xlink:label='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesStandardizedMeasureAbstract' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureNetCashFlowsAbstract' xlink:label='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureNetCashFlowsAbstract' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureCashInflows' xlink:label='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureCashInflows' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureDevelopmentCosts' xlink:label='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureDevelopmentCosts' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureProductionCosts' xlink:label='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureProductionCosts' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureIncomeTaxExpense' xlink:label='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureIncomeTaxExpense' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureNetCashFlows' xlink:label='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureNetCashFlows' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves10PercentAnnualDiscountForEstimatedTimingOfCashFlows' xlink:label='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves10PercentAnnualDiscountForEstimatedTimingOfCashFlows' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesStandardizedMeasure' xlink:label='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesStandardizedMeasure' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesEntitysShareOfEquityMethodInvesteesStandardizedDiscountedFutureNetCashFlows' xlink:label='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesEntitysShareOfEquityMethodInvesteesStandardizedDiscountedFutureNetCashFlows' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_SignificantEconomicInterestInStandardizedMeasureOfDiscountedFutureNetCashFlowsAttributableToConsolidatedSubsidiaryIesWithSignificantMinorityInterests' xlink:label='loc_SignificantEconomicInterestInStandardizedMeasureOfDiscountedFutureNetCashFlowsAttributableToConsolidatedSubsidiaryIesWithSignificantMinorityInterests' xlink:type='locator' />
<link:definitionArc order='1.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/domain-member' xlink:from='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesLineItems' xlink:to='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesStandardizedMeasureAbstract' xlink:type='arc' />
<link:definitionArc order='2.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/domain-member' xlink:from='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesStandardizedMeasureAbstract' xlink:to='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureNetCashFlowsAbstract' xlink:type='arc' />
<link:definitionArc order='3.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/domain-member' xlink:from='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureNetCashFlowsAbstract' xlink:to='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureCashInflows' xlink:type='arc' />
<link:definitionArc order='4.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/domain-member' xlink:from='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureNetCashFlowsAbstract' xlink:to='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureDevelopmentCosts' xlink:type='arc' />
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<link:definitionArc order='6.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/domain-member' xlink:from='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureNetCashFlowsAbstract' xlink:to='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureIncomeTaxExpense' xlink:type='arc' />
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<link:definitionArc order='8.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/domain-member' xlink:from='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesStandardizedMeasureAbstract' xlink:to='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves10PercentAnnualDiscountForEstimatedTimingOfCashFlows' xlink:type='arc' />
<link:definitionArc order='9.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/domain-member' xlink:from='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesStandardizedMeasureAbstract' xlink:to='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesStandardizedMeasure' xlink:type='arc' />
<link:definitionArc order='10.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/domain-member' xlink:from='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesLineItems' xlink:to='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesEntitysShareOfEquityMethodInvesteesStandardizedDiscountedFutureNetCashFlows' xlink:type='arc' />
<link:definitionArc order='11.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/domain-member' xlink:from='loc_DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesLineItems' xlink:to='loc_SignificantEconomicInterestInStandardizedMeasureOfDiscountedFutureNetCashFlowsAttributableToConsolidatedSubsidiaryIesWithSignificantMinorityInterests' xlink:type='arc' />
</link:definitionLink>
<!--Definition relationships for table AverageSalesPriceAndProductionCostsPerUnitOfProductionTable in presentation http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustries-->
<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesAverageSalesPriceAndProductionCostsPerUnitOfProductionTable' xlink:type='extended'>
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_AverageSalesPriceAndProductionCostsPerUnitOfProductionTable' xlink:label='loc_AverageSalesPriceAndProductionCostsPerUnitOfProductionTable' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_AverageSalesPriceAndProductionCostsPerUnitOfProductionLineItems' xlink:label='loc_AverageSalesPriceAndProductionCostsPerUnitOfProductionLineItems' xlink:type='locator' />
<link:definitionArc order='1.0' xbrldt:closed='true' xbrldt:contextElement='segment' xlink:arcrole='http://xbrl.org/int/dim/arcrole/all' xlink:from='loc_AverageSalesPriceAndProductionCostsPerUnitOfProductionLineItems' xlink:to='loc_AverageSalesPriceAndProductionCostsPerUnitOfProductionTable' xlink:type='arc' />
</link:definitionLink>
<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesAverageSalesPriceAndProductionCostsPerUnitOfProductionTable' xlink:type='extended'>
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_AverageSalesPriceAndProductionCostsPerUnitOfProductionTable' xlink:label='loc_AverageSalesPriceAndProductionCostsPerUnitOfProductionTable' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_AverageSalesPriceAndProductionCostsPerUnitOfProductionGeographicAreaAxis' xlink:label='loc_AverageSalesPriceAndProductionCostsPerUnitOfProductionGeographicAreaAxis' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_AverageSalesPriceAndProductionCostsPerUnitOfProductionProductionTypeAxis' xlink:label='loc_AverageSalesPriceAndProductionCostsPerUnitOfProductionProductionTypeAxis' xlink:type='locator' />
<link:definitionArc order='1.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/hypercube-dimension' xlink:from='loc_AverageSalesPriceAndProductionCostsPerUnitOfProductionTable' xlink:to='loc_AverageSalesPriceAndProductionCostsPerUnitOfProductionGeographicAreaAxis' xlink:type='arc' />
<link:definitionArc order='2.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/hypercube-dimension' xlink:from='loc_AverageSalesPriceAndProductionCostsPerUnitOfProductionTable' xlink:to='loc_AverageSalesPriceAndProductionCostsPerUnitOfProductionProductionTypeAxis' xlink:type='arc' />
</link:definitionLink>
<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesAverageSalesPriceAndProductionCostsPerUnitOfProductionTable' xlink:type='extended'>
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_AverageSalesPriceAndProductionCostsPerUnitOfProductionGeographicAreaAxis' xlink:label='loc_AverageSalesPriceAndProductionCostsPerUnitOfProductionGeographicAreaAxis' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_GeographicAreaForOilAndGasDisclosuresDomain' xlink:label='loc_GeographicAreaForOilAndGasDisclosuresDomain' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_AverageSalesPriceAndProductionCostsPerUnitOfProductionProductionTypeAxis' xlink:label='loc_AverageSalesPriceAndProductionCostsPerUnitOfProductionProductionTypeAxis' xlink:type='locator' />
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<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesAverageSalesPriceAndProductionCostsPerUnitOfProductionTable' xlink:type='extended'>
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_AverageSalesPriceAndProductionCostsPerUnitOfProductionGeographicAreaAxis' xlink:label='loc_AverageSalesPriceAndProductionCostsPerUnitOfProductionGeographicAreaAxis' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_GeographicAreaForOilAndGasDisclosuresDomain' xlink:label='loc_GeographicAreaForOilAndGasDisclosuresDomain' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_AverageSalesPriceAndProductionCostsPerUnitOfProductionProductionTypeAxis' xlink:label='loc_AverageSalesPriceAndProductionCostsPerUnitOfProductionProductionTypeAxis' xlink:type='locator' />
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<link:definitionArc order='1.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/dimension-default' xlink:from='loc_AverageSalesPriceAndProductionCostsPerUnitOfProductionGeographicAreaAxis' xlink:to='loc_GeographicAreaForOilAndGasDisclosuresDomain' xlink:type='arc' />
<link:definitionArc order='2.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/dimension-default' xlink:from='loc_AverageSalesPriceAndProductionCostsPerUnitOfProductionProductionTypeAxis' xlink:to='loc_ProductionTypeDomain' xlink:type='arc' />
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<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesAverageSalesPriceAndProductionCostsPerUnitOfProductionTable' xlink:type='extended'>
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_AverageSalesPriceAndProductionCostsPerUnitOfProductionLineItems' xlink:label='loc_AverageSalesPriceAndProductionCostsPerUnitOfProductionLineItems' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_AverageSalesPrices' xlink:label='loc_AverageSalesPrices' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_AverageProductionCostsPerBarrelOfOilEquivalentsBOE' xlink:label='loc_AverageProductionCostsPerBarrelOfOilEquivalentsBOE' xlink:type='locator' />
<link:definitionArc order='1.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/domain-member' xlink:from='loc_AverageSalesPriceAndProductionCostsPerUnitOfProductionLineItems' xlink:to='loc_AverageSalesPrices' xlink:type='arc' />
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<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesAverageSalesPriceAndProductionCostsPerUnitOfProductionTable' xlink:type='extended'>
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<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_CrudeOilAndNGLPerBarrelMember' xlink:label='loc_CrudeOilAndNGLPerBarrelMember' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_NaturalGasPerThousandCubicFeetMember' xlink:label='loc_NaturalGasPerThousandCubicFeetMember' xlink:type='locator' />
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<!--Definition relationships for table ProductiveWellsTable in presentation http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustries-->
<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesProductiveWellsTable' xlink:type='extended'>
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_ProductiveWellsTable' xlink:label='loc_ProductiveWellsTable' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_ProductiveWellsLineItems' xlink:label='loc_ProductiveWellsLineItems' xlink:type='locator' />
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<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesProductiveWellsTable' xlink:type='extended'>
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<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_ProductiveWellsByGeographicAreaAxis' xlink:label='loc_ProductiveWellsByGeographicAreaAxis' xlink:type='locator' />
<link:definitionArc order='1.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/hypercube-dimension' xlink:from='loc_ProductiveWellsTable' xlink:to='loc_ProductiveWellsByGeographicAreaAxis' xlink:type='arc' />
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<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesProductiveWellsTable' xlink:type='extended'>
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_ProductiveWellsByGeographicAreaAxis' xlink:label='loc_ProductiveWellsByGeographicAreaAxis' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_GeographicAreaForOilAndGasDisclosuresDomain' xlink:label='loc_GeographicAreaForOilAndGasDisclosuresDomain' xlink:type='locator' />
<link:definitionArc order='1.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/dimension-domain' xlink:from='loc_ProductiveWellsByGeographicAreaAxis' xlink:to='loc_GeographicAreaForOilAndGasDisclosuresDomain' xlink:type='arc' />
</link:definitionLink>
<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesProductiveWellsTable' xlink:type='extended'>
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_ProductiveWellsByGeographicAreaAxis' xlink:label='loc_ProductiveWellsByGeographicAreaAxis' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_GeographicAreaForOilAndGasDisclosuresDomain' xlink:label='loc_GeographicAreaForOilAndGasDisclosuresDomain' xlink:type='locator' />
<link:definitionArc order='1.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/dimension-default' xlink:from='loc_ProductiveWellsByGeographicAreaAxis' xlink:to='loc_GeographicAreaForOilAndGasDisclosuresDomain' xlink:type='arc' />
</link:definitionLink>
<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesProductiveWellsTable' xlink:type='extended'>
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_ProductiveWellsLineItems' xlink:label='loc_ProductiveWellsLineItems' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_ProductiveOilWellsNumberOfWellsGross' xlink:label='loc_ProductiveOilWellsNumberOfWellsGross' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_ProductiveOilWellsNumberOfWellsNet' xlink:label='loc_ProductiveOilWellsNumberOfWellsNet' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_ProductiveGasWellsNumberOfWellsGross' xlink:label='loc_ProductiveGasWellsNumberOfWellsGross' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_ProductiveGasWellsNumberOfWellsNet' xlink:label='loc_ProductiveGasWellsNumberOfWellsNet' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_ProductiveOilWellsNumberOfWellsWithMultipleCompletionsGross' xlink:label='loc_ProductiveOilWellsNumberOfWellsWithMultipleCompletionsGross' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_ProductiveOilWellsNumberOfWellsWithMultipleCompletionsNet' xlink:label='loc_ProductiveOilWellsNumberOfWellsWithMultipleCompletionsNet' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_ProductiveGasWellsNumberOfWellsWithMultipleCompletionsGross' xlink:label='loc_ProductiveGasWellsNumberOfWellsWithMultipleCompletionsGross' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_ProductiveGasWellsNumberOfWellsWithMultipleCompletionsNet' xlink:label='loc_ProductiveGasWellsNumberOfWellsWithMultipleCompletionsNet' xlink:type='locator' />
<link:definitionArc order='1.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/domain-member' xlink:from='loc_ProductiveWellsLineItems' xlink:to='loc_ProductiveOilWellsNumberOfWellsGross' xlink:type='arc' />
<link:definitionArc order='2.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/domain-member' xlink:from='loc_ProductiveWellsLineItems' xlink:to='loc_ProductiveOilWellsNumberOfWellsNet' xlink:type='arc' />
<link:definitionArc order='3.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/domain-member' xlink:from='loc_ProductiveWellsLineItems' xlink:to='loc_ProductiveGasWellsNumberOfWellsGross' xlink:type='arc' />
<link:definitionArc order='4.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/domain-member' xlink:from='loc_ProductiveWellsLineItems' xlink:to='loc_ProductiveGasWellsNumberOfWellsNet' xlink:type='arc' />
<link:definitionArc order='5.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/domain-member' xlink:from='loc_ProductiveWellsLineItems' xlink:to='loc_ProductiveOilWellsNumberOfWellsWithMultipleCompletionsGross' xlink:type='arc' />
<link:definitionArc order='6.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/domain-member' xlink:from='loc_ProductiveWellsLineItems' xlink:to='loc_ProductiveOilWellsNumberOfWellsWithMultipleCompletionsNet' xlink:type='arc' />
<link:definitionArc order='7.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/domain-member' xlink:from='loc_ProductiveWellsLineItems' xlink:to='loc_ProductiveGasWellsNumberOfWellsWithMultipleCompletionsGross' xlink:type='arc' />
<link:definitionArc order='8.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/domain-member' xlink:from='loc_ProductiveWellsLineItems' xlink:to='loc_ProductiveGasWellsNumberOfWellsWithMultipleCompletionsNet' xlink:type='arc' />
</link:definitionLink>
<!--Definition relationships for table GasAndOilAcreageTable in presentation http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustries-->
<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesGasAndOilAcreageTable' xlink:type='extended'>
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_GasAndOilAcreageTable' xlink:label='loc_GasAndOilAcreageTable' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_GasAndOilAcreageLineItems' xlink:label='loc_GasAndOilAcreageLineItems' xlink:type='locator' />
<link:definitionArc order='1.0' xbrldt:closed='true' xbrldt:contextElement='segment' xlink:arcrole='http://xbrl.org/int/dim/arcrole/all' xlink:from='loc_GasAndOilAcreageLineItems' xlink:to='loc_GasAndOilAcreageTable' xlink:type='arc' />
</link:definitionLink>
<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesGasAndOilAcreageTable' xlink:type='extended'>
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_GasAndOilAcreageTable' xlink:label='loc_GasAndOilAcreageTable' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_GasAndOilAcreageByGeographicAreaAxis' xlink:label='loc_GasAndOilAcreageByGeographicAreaAxis' xlink:type='locator' />
<link:definitionArc order='1.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/hypercube-dimension' xlink:from='loc_GasAndOilAcreageTable' xlink:to='loc_GasAndOilAcreageByGeographicAreaAxis' xlink:type='arc' />
</link:definitionLink>
<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesGasAndOilAcreageTable' xlink:type='extended'>
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_GasAndOilAcreageByGeographicAreaAxis' xlink:label='loc_GasAndOilAcreageByGeographicAreaAxis' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_GeographicAreaForOilAndGasDisclosuresDomain' xlink:label='loc_GeographicAreaForOilAndGasDisclosuresDomain' xlink:type='locator' />
<link:definitionArc order='1.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/dimension-domain' xlink:from='loc_GasAndOilAcreageByGeographicAreaAxis' xlink:to='loc_GeographicAreaForOilAndGasDisclosuresDomain' xlink:type='arc' />
</link:definitionLink>
<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesGasAndOilAcreageTable' xlink:type='extended'>
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_GasAndOilAcreageByGeographicAreaAxis' xlink:label='loc_GasAndOilAcreageByGeographicAreaAxis' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_GeographicAreaForOilAndGasDisclosuresDomain' xlink:label='loc_GeographicAreaForOilAndGasDisclosuresDomain' xlink:type='locator' />
<link:definitionArc order='1.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/dimension-default' xlink:from='loc_GasAndOilAcreageByGeographicAreaAxis' xlink:to='loc_GeographicAreaForOilAndGasDisclosuresDomain' xlink:type='arc' />
</link:definitionLink>
<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesGasAndOilAcreageTable' xlink:type='extended'>
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_GasAndOilAcreageLineItems' xlink:label='loc_GasAndOilAcreageLineItems' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_GasAndOilAcreageDevelopedGross' xlink:label='loc_GasAndOilAcreageDevelopedGross' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_GasAndOilAcreageDevelopedNet' xlink:label='loc_GasAndOilAcreageDevelopedNet' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_GasAndOilAcreageUndevelopedGross' xlink:label='loc_GasAndOilAcreageUndevelopedGross' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_GasAndOilAcreageUndevelopedNet' xlink:label='loc_GasAndOilAcreageUndevelopedNet' xlink:type='locator' />
<link:definitionArc order='1.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/domain-member' xlink:from='loc_GasAndOilAcreageLineItems' xlink:to='loc_GasAndOilAcreageDevelopedGross' xlink:type='arc' />
<link:definitionArc order='2.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/domain-member' xlink:from='loc_GasAndOilAcreageLineItems' xlink:to='loc_GasAndOilAcreageDevelopedNet' xlink:type='arc' />
<link:definitionArc order='3.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/domain-member' xlink:from='loc_GasAndOilAcreageLineItems' xlink:to='loc_GasAndOilAcreageUndevelopedGross' xlink:type='arc' />
<link:definitionArc order='4.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/domain-member' xlink:from='loc_GasAndOilAcreageLineItems' xlink:to='loc_GasAndOilAcreageUndevelopedNet' xlink:type='arc' />
</link:definitionLink>
<!--Definition relationships for table ExploratoryWellsDrilledTable in presentation http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustries-->
<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesExploratoryWellsDrilledTable' xlink:type='extended'>
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_ExploratoryWellsDrilledTable' xlink:label='loc_ExploratoryWellsDrilledTable' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_ExploratoryWellsDrilledLineItems' xlink:label='loc_ExploratoryWellsDrilledLineItems' xlink:type='locator' />
<link:definitionArc order='1.0' xbrldt:closed='true' xbrldt:contextElement='segment' xlink:arcrole='http://xbrl.org/int/dim/arcrole/all' xlink:from='loc_ExploratoryWellsDrilledLineItems' xlink:to='loc_ExploratoryWellsDrilledTable' xlink:type='arc' />
</link:definitionLink>
<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesExploratoryWellsDrilledTable' xlink:type='extended'>
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_ExploratoryWellsDrilledTable' xlink:label='loc_ExploratoryWellsDrilledTable' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_ExploratoryWellsDrilledByGeographicAreaAxis' xlink:label='loc_ExploratoryWellsDrilledByGeographicAreaAxis' xlink:type='locator' />
<link:definitionArc order='1.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/hypercube-dimension' xlink:from='loc_ExploratoryWellsDrilledTable' xlink:to='loc_ExploratoryWellsDrilledByGeographicAreaAxis' xlink:type='arc' />
</link:definitionLink>
<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesExploratoryWellsDrilledTable' xlink:type='extended'>
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_ExploratoryWellsDrilledByGeographicAreaAxis' xlink:label='loc_ExploratoryWellsDrilledByGeographicAreaAxis' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_GeographicAreaForOilAndGasDisclosuresDomain' xlink:label='loc_GeographicAreaForOilAndGasDisclosuresDomain' xlink:type='locator' />
<link:definitionArc order='1.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/dimension-domain' xlink:from='loc_ExploratoryWellsDrilledByGeographicAreaAxis' xlink:to='loc_GeographicAreaForOilAndGasDisclosuresDomain' xlink:type='arc' />
</link:definitionLink>
<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesExploratoryWellsDrilledTable' xlink:type='extended'>
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_ExploratoryWellsDrilledByGeographicAreaAxis' xlink:label='loc_ExploratoryWellsDrilledByGeographicAreaAxis' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_GeographicAreaForOilAndGasDisclosuresDomain' xlink:label='loc_GeographicAreaForOilAndGasDisclosuresDomain' xlink:type='locator' />
<link:definitionArc order='1.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/dimension-default' xlink:from='loc_ExploratoryWellsDrilledByGeographicAreaAxis' xlink:to='loc_GeographicAreaForOilAndGasDisclosuresDomain' xlink:type='arc' />
</link:definitionLink>
<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesExploratoryWellsDrilledTable' xlink:type='extended'>
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_ExploratoryWellsDrilledLineItems' xlink:label='loc_ExploratoryWellsDrilledLineItems' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_ExploratoryWellsDrilledNetProductive' xlink:label='loc_ExploratoryWellsDrilledNetProductive' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_ExploratoryWellsDrilledNetNonproductive' xlink:label='loc_ExploratoryWellsDrilledNetNonproductive' xlink:type='locator' />
<link:definitionArc order='1.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/domain-member' xlink:from='loc_ExploratoryWellsDrilledLineItems' xlink:to='loc_ExploratoryWellsDrilledNetProductive' xlink:type='arc' />
<link:definitionArc order='2.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/domain-member' xlink:from='loc_ExploratoryWellsDrilledLineItems' xlink:to='loc_ExploratoryWellsDrilledNetNonproductive' xlink:type='arc' />
</link:definitionLink>
<!--Definition relationships for table DevelopmentWellsDrilledTable in presentation http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustries-->
<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesDevelopmentWellsDrilledTable' xlink:type='extended'>
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_DevelopmentWellsDrilledTable' xlink:label='loc_DevelopmentWellsDrilledTable' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_DevelopmentWellsDrilledLineItems' xlink:label='loc_DevelopmentWellsDrilledLineItems' xlink:type='locator' />
<link:definitionArc order='1.0' xbrldt:closed='true' xbrldt:contextElement='segment' xlink:arcrole='http://xbrl.org/int/dim/arcrole/all' xlink:from='loc_DevelopmentWellsDrilledLineItems' xlink:to='loc_DevelopmentWellsDrilledTable' xlink:type='arc' />
</link:definitionLink>
<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesDevelopmentWellsDrilledTable' xlink:type='extended'>
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_DevelopmentWellsDrilledTable' xlink:label='loc_DevelopmentWellsDrilledTable' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_DevelopmentWellsDrilledByGeographicAreaAxis' xlink:label='loc_DevelopmentWellsDrilledByGeographicAreaAxis' xlink:type='locator' />
<link:definitionArc order='1.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/hypercube-dimension' xlink:from='loc_DevelopmentWellsDrilledTable' xlink:to='loc_DevelopmentWellsDrilledByGeographicAreaAxis' xlink:type='arc' />
</link:definitionLink>
<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesDevelopmentWellsDrilledTable' xlink:type='extended'>
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_DevelopmentWellsDrilledByGeographicAreaAxis' xlink:label='loc_DevelopmentWellsDrilledByGeographicAreaAxis' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_GeographicAreaForOilAndGasDisclosuresDomain' xlink:label='loc_GeographicAreaForOilAndGasDisclosuresDomain' xlink:type='locator' />
<link:definitionArc order='1.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/dimension-domain' xlink:from='loc_DevelopmentWellsDrilledByGeographicAreaAxis' xlink:to='loc_GeographicAreaForOilAndGasDisclosuresDomain' xlink:type='arc' />
</link:definitionLink>
<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesDevelopmentWellsDrilledTable' xlink:type='extended'>
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_DevelopmentWellsDrilledByGeographicAreaAxis' xlink:label='loc_DevelopmentWellsDrilledByGeographicAreaAxis' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_GeographicAreaForOilAndGasDisclosuresDomain' xlink:label='loc_GeographicAreaForOilAndGasDisclosuresDomain' xlink:type='locator' />
<link:definitionArc order='1.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/dimension-default' xlink:from='loc_DevelopmentWellsDrilledByGeographicAreaAxis' xlink:to='loc_GeographicAreaForOilAndGasDisclosuresDomain' xlink:type='arc' />
</link:definitionLink>
<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesDevelopmentWellsDrilledTable' xlink:type='extended'>
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_DevelopmentWellsDrilledLineItems' xlink:label='loc_DevelopmentWellsDrilledLineItems' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_DevelopmentWellsDrilledNetProductive' xlink:label='loc_DevelopmentWellsDrilledNetProductive' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_DevelopmentWellsDrilledNetNonproductive' xlink:label='loc_DevelopmentWellsDrilledNetNonproductive' xlink:type='locator' />
<link:definitionArc order='1.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/domain-member' xlink:from='loc_DevelopmentWellsDrilledLineItems' xlink:to='loc_DevelopmentWellsDrilledNetProductive' xlink:type='arc' />
<link:definitionArc order='2.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/domain-member' xlink:from='loc_DevelopmentWellsDrilledLineItems' xlink:to='loc_DevelopmentWellsDrilledNetNonproductive' xlink:type='arc' />
</link:definitionLink>
<!--Definition relationships for table OilAndGasDeliveryCommitmentsAndContractsTable in presentation http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustries-->
<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesOilAndGasDeliveryCommitmentsAndContractsTable' xlink:type='extended'>
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_OilAndGasDeliveryCommitmentsAndContractsTable' xlink:label='loc_OilAndGasDeliveryCommitmentsAndContractsTable' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_OilAndGasDeliveryCommitmentsAndContractsLineItems' xlink:label='loc_OilAndGasDeliveryCommitmentsAndContractsLineItems' xlink:type='locator' />
<link:definitionArc order='1.0' xbrldt:closed='true' xbrldt:contextElement='segment' xlink:arcrole='http://xbrl.org/int/dim/arcrole/all' xlink:from='loc_OilAndGasDeliveryCommitmentsAndContractsLineItems' xlink:to='loc_OilAndGasDeliveryCommitmentsAndContractsTable' xlink:type='arc' />
</link:definitionLink>
<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesOilAndGasDeliveryCommitmentsAndContractsTable' xlink:type='extended'>
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_OilAndGasDeliveryCommitmentsAndContractsTable' xlink:label='loc_OilAndGasDeliveryCommitmentsAndContractsTable' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_OilAndGasDeliveryCommitmentsAndContractsAxis' xlink:label='loc_OilAndGasDeliveryCommitmentsAndContractsAxis' xlink:type='locator' />
<link:definitionArc order='1.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/hypercube-dimension' xlink:from='loc_OilAndGasDeliveryCommitmentsAndContractsTable' xlink:to='loc_OilAndGasDeliveryCommitmentsAndContractsAxis' xlink:type='arc' />
</link:definitionLink>
<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesOilAndGasDeliveryCommitmentsAndContractsTable' xlink:type='extended'>
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_OilAndGasDeliveryCommitmentsAndContractsAxis' xlink:label='loc_OilAndGasDeliveryCommitmentsAndContractsAxis' xlink:type='locator' />
<link:loc xlink:href='../elts/us-gaap-2009-01-31.xsd#us-gaap_OilAndGasDeliveryCommitmentsAndContractsOilProducingPropertyDomain' xlink:label='loc_OilAndGasDeliveryCommitmentsAndContractsOilProducingPropertyDomain' xlink:type='locator' />
<link:definitionArc order='1.0' xlink:arcrole='http://xbrl.org/int/dim/arcrole/dimension-domain' xlink:from='loc_OilAndGasDeliveryCommitmentsAndContractsAxis' xlink:to='loc_OilAndGasDeliveryCommitmentsAndContractsOilProducingPropertyDomain' xlink:type='arc' />
</link:definitionLink>
<link:definitionLink xlink:role='http://xbrl.us/us-gaap/role/disclosure/ExtractiveIndustriesOilAndGasDeliveryCommitmentsAndContractsTable' xlink:type='extended'>
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