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  <xsd:element id="pdce_MaximumPercentOfPartnershipUnitsRepurchased" name="MaximumPercentOfPartnershipUnitsRepurchased" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pdce_May2012CommonStockIssuanceMember" name="May2012CommonStockIssuanceMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pdce_MeritAcquisitionMember" name="MeritAcquisitionMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pdce_NecoMember" name="NecoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="pdce_NetAssetFairValue" name="NetAssetFairValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="pdce_NonCurrentAssetsMember" name="NonCurrentAssetsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pdce_NonCurrentLiabilitiesMember" name="NonCurrentLiabilitiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pdce_NonEmployeeDirectorDeferredCompensationMember" name="NonEmployeeDirectorDeferredCompensationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pdce_NorthDakotaMember" name="NorthDakotaMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="pdce_NumberOfAffiliatedPartnerships" name="NumberOfAffiliatedPartnerships" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="pdce_OilAndGasAssetsSalePriceBeforeAdjustments" name="OilAndGasAssetsSalePriceBeforeAdjustments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="pdce_OilAndGasProducingWellsGross" name="OilAndGasProducingWellsGross" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="pdce_OtherLendersInOurCreditFacilityMember" name="OtherLendersInOurCreditFacilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="pdce_OtherOperatingIncomeDiscontuinedOperations" name="OtherOperatingIncomeDiscontuinedOperations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pdce_OwnershipInterestInPdcmMember" name="OwnershipInterestInPdcmMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pdce_PdcmCreditFacilityMember" name="PdcmCreditFacilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="pdce_PdcmLineOfCreditOutstanding" name="PdcmLineOfCreditOutstanding" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="pdce_PdcmMember" name="PdcmMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pdce_PeriodRelatedToDerivativeRealizedunrealizedGainsLossesAxis" name="PeriodRelatedToDerivativeRealizedunrealizedGainsLossesAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pdce_PeriodRelatedToDerivativeRealizedunrealizedGainsLossesDomain" name="PeriodRelatedToDerivativeRealizedunrealizedGainsLossesDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pdce_PermianBasinMember" name="PermianBasinMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pdce_PiceanceBasinMember" name="PiceanceBasinMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="pdce_PortionOfAnticipatedNaturalGasProductionHedged" name="PortionOfAnticipatedNaturalGasProductionHedged" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant" />
  <xsd:element id="pdce_ProceedsToNonAffiliatedInvestorPartners" name="ProceedsToNonAffiliatedInvestorPartners" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="pdce_ProportionateShareOfPdcmCreditFacility" name="ProportionateShareOfPdcmCreditFacility" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="pdce_RealizedAndUnrealizedGainsLossesForCurrentPeriodMember" name="RealizedAndUnrealizedGainsLossesForCurrentPeriodMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="pdce_RealizedGainsLossesOnDerivativeInstrumentsNotDesignatedAsHedgingInstruments" name="RealizedGainsLossesOnDerivativeInstrumentsNotDesignatedAsHedgingInstruments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pdce_ReclassificationOfRealizedGainsLossesIncludedInPriorPeriodsUnrealizedMember" name="ReclassificationOfRealizedGainsLossesIncludedInPriorPeriodsUnrealizedMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pdce_RestrictedStockMarketBasedAwardsMember" name="RestrictedStockMarketBasedAwardsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pdce_SalesFromNaturalGasMarketingMember" name="SalesFromNaturalGasMarketingMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pdce_SecondPaymentMember" name="SecondPaymentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pdce_SecondYearCommitmentMember" name="SecondYearCommitmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="pdce_ShareBasedCompensationExercisableContractualTerm" name="ShareBasedCompensationExercisableContractualTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="pdce_ShareBasedCompensationRemainingContractualTermRollForward" name="ShareBasedCompensationRemainingContractualTermRollForward" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pdce_ShareBasedCompesationAggregateIntrinsicValuRollForward" name="ShareBasedCompesationAggregateIntrinsicValuRollForward" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="pdce_ShareBasedExercisedAwardsIntrinsicValue" name="ShareBasedExercisedAwardsIntrinsicValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="duration" />
  <xsd:element id="pdce_ShareBasedExercisedAwardsWeightedAverageRemainingTerm" name="ShareBasedExercisedAwardsWeightedAverageRemainingTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="pdce_ShareBasedForfeituresIntrinsicValue" name="ShareBasedForfeituresIntrinsicValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="duration" />
  <xsd:element id="pdce_ShareBasedGrantsWeightedAverageRemainingTerm" name="ShareBasedGrantsWeightedAverageRemainingTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="pdce_SharedBasedAwardsIntrinsicValue" name="SharedBasedAwardsIntrinsicValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="duration" />
  <xsd:element id="pdce_SharedBasedCompensationRemainingContractualPeriod" name="SharedBasedCompensationRemainingContractualPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="pdce_StockAppreciationRightsMember" name="StockAppreciationRightsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="pdce_SupplyCommitmentsContractExpirationDate" name="SupplyCommitmentsContractExpirationDate" nillable="true" substitutionGroup="xbrli:item" type="xbrli:dateItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="pdce_SupplyContractExpirationDateMember" name="SupplyContractExpirationDateMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pdce_ThirdYearCommitmentMember" name="ThirdYearCommitmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="pdce_TimeBasedSharesGrantedToExecutives" name="TimeBasedSharesGrantedToExecutives" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="pdce_TotalIntrinsicValueOfTimeBasedAwardsVested" name="TotalIntrinsicValueOfTimeBasedAwardsVested" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pdce_TotalRegionsDomain" name="TotalRegionsDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="pdce_TreasuryStockAcquiredAndAvailableForReissuance" name="TreasuryStockAcquiredAndAvailableForReissuance" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pdce_VariousMember" name="VariousMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="pdce_VestedAndExpectedToVestRemainingContractualTerm" name="VestedAndExpectedToVestRemainingContractualTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="instant" />
  <xsd:element id="pdce_VestingPeriodOfSharedBasedAwardsGrantedToExecutives" name="VestingPeriodOfSharedBasedAwardsGrantedToExecutives" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pdce_WellsFargoBankMember" name="WellsFargoBankMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>
</XBRL>