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  <xs:element id="dec_OilAndGasSuccessfulEffortsMethodPropertyAndEquipmentBeforeAccumulatedDepreciationDepletionAmortizationAndImpairmentDisposals" abstract="false" name="OilAndGasSuccessfulEffortsMethodPropertyAndEquipmentBeforeAccumulatedDepreciationDepletionAmortizationAndImpairmentDisposals" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dec_OilAndGasSuccessfulEffortsMethodPropertyAndEquipmentAccumulatedImpairmentDepreciationDepletionAndAmortizationRollForward" abstract="true" name="OilAndGasSuccessfulEffortsMethodPropertyAndEquipmentAccumulatedImpairmentDepreciationDepletionAndAmortizationRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="dec_OilAndGasSuccessfulEffortsMethodPropertyAndEquipmentAccumulatedImpairmentDepreciationDepletionAndAmortizationDisposals" abstract="false" name="OilAndGasSuccessfulEffortsMethodPropertyAndEquipmentAccumulatedImpairmentDepreciationDepletionAndAmortizationDisposals" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dec_TwoWayCollarsMember" abstract="true" name="TwoWayCollarsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_ThreeWayCollarsMember" abstract="true" name="ThreeWayCollarsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_PurchasedPutsMember" abstract="true" name="PurchasedPutsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_SoldPutsMember" abstract="true" name="SoldPutsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_SoldCallsMember" abstract="true" name="SoldCallsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_DerivativeAssetsLiabilitiesAbstract" abstract="true" name="DerivativeAssetsLiabilitiesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="dec_DerivativeAssetLiabilityCurrent" abstract="false" name="DerivativeAssetLiabilityCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dec_DerivativeAssetLiabilityNoncurrent" abstract="false" name="DerivativeAssetLiabilityNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dec_ABSIVNotesMember" abstract="true" name="ABSIVNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_ABSXFinancingAgreementMember" abstract="true" name="ABSXFinancingAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_ABSIAndTermLoanIMember" abstract="true" name="ABSIAndTermLoanIMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_StockRepurchasedAndRetiredDuringThePeriodAsAPercentageOfCommonStockIssuedAndOutstandingAsOfTheEndOfThePeriod" abstract="false" name="StockRepurchasedAndRetiredDuringThePeriodAsAPercentageOfCommonStockIssuedAndOutstandingAsOfTheEndOfThePeriod" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="dec_A2017EquityIncentivePlanMember" abstract="true" name="A2017EquityIncentivePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_A2025EquityIncentivePlanMember" abstract="true" name="A2025EquityIncentivePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_ShareBasedCompensationArrangementByShareBasedPaymentAwardCommonStockIssuedAndOutstandingSharesAuthorizedAndReservedForIssuanceAsAPercentage" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardCommonStockIssuedAndOutstandingSharesAuthorizedAndReservedForIssuanceAsAPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="dec_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPercentageOfInitialAwards" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPercentageOfInitialAwards" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="dec_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsCorrelationWithComparator" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsCorrelationWithComparator" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="dec_AssetRetirementObligationDisposals" abstract="false" name="AssetRetirementObligationDisposals" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dec_TheCreditFacilityMember" abstract="true" name="TheCreditFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_ABSVIIINotesMember" abstract="true" name="ABSVIIINotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_ABSIXNotesMember" abstract="true" name="ABSIXNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_ABSXNotesMember" abstract="true" name="ABSXNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_ABSXINotesMember" abstract="true" name="ABSXINotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_ABSXIINotesMember" abstract="true" name="ABSXIINotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_A2025NordicBondsMember" abstract="true" name="A2025NordicBondsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_OtherMiscellaneousBorrowingsMember" abstract="true" name="OtherMiscellaneousBorrowingsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_SecuritizedNotesPayableMember" abstract="true" name="SecuritizedNotesPayableMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_NumberOfNaturalGasPlants" abstract="false" name="NumberOfNaturalGasPlants" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="dec_ABSVINotesMember" abstract="true" name="ABSVINotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_DiversifiedABSVILLCAndOaktreeMember" abstract="true" name="DiversifiedABSVILLCAndOaktreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_DiversifiedABSVILLCMember" abstract="true" name="DiversifiedABSVILLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_OaktreeCapitalManagementL.P.Member" abstract="true" name="OaktreeCapitalManagementL.P.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_DebtInstrumentDiscountRate" abstract="false" name="DebtInstrumentDiscountRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="dec_ABSVIIINotesClassA1NotesMember" abstract="true" name="ABSVIIINotesClassA1NotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_ABSVIIINotesClassA2NotesMember" abstract="true" name="ABSVIIINotesClassA2NotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_DebtInstrumentCovenantScenarioAxis" abstract="true" name="DebtInstrumentCovenantScenarioAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="dec_DebtInstrumentCovenantScenarioDomain" abstract="true" name="DebtInstrumentCovenantScenarioDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_DebtServiceCoverageRatioScenarioOneMember" abstract="true" name="DebtServiceCoverageRatioScenarioOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_DebtServiceCoverageRatioScenarioTwoMember" abstract="true" name="DebtServiceCoverageRatioScenarioTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_DebtServiceCoverageRatioScenarioThreeMember" abstract="true" name="DebtServiceCoverageRatioScenarioThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_ProductionTrackingRateScenarioOneMember" abstract="true" name="ProductionTrackingRateScenarioOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_ProductionTrackingRateScenarioTwoMember" abstract="true" name="ProductionTrackingRateScenarioTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_LoanToValueRatioScenarioOnceMember" abstract="true" name="LoanToValueRatioScenarioOnceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_LoanToValueRatioScenarioTwoMember" abstract="true" name="LoanToValueRatioScenarioTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_DebtCovenantPercentageOfExcessCashFlowRequiredToBePaidIfCashFlowExceedsRequiredLevel" abstract="false" name="DebtCovenantPercentageOfExcessCashFlowRequiredToBePaidIfCashFlowExceedsRequiredLevel" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="dec_DebtInstrumentCovenantDebtServiceCoverageRatio" abstract="false" name="DebtInstrumentCovenantDebtServiceCoverageRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="dec_DebtInstrumentDebtCovenantProductionTrackingRate" abstract="false" name="DebtInstrumentDebtCovenantProductionTrackingRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="dec_DebtInstrumentDebtCovenantLoanToValueRatio" abstract="false" name="DebtInstrumentDebtCovenantLoanToValueRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="dec_ABSFacilityWarehouseMember" abstract="true" name="ABSFacilityWarehouseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_ABSIXNotesClassANotesMember" abstract="true" name="ABSIXNotesClassANotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_ABSIXNotesClassBNotesMember" abstract="true" name="ABSIXNotesClassBNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_PastTheAnticipatedRepayementDateScenarioOneMember" abstract="true" name="PastTheAnticipatedRepayementDateScenarioOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_PastTheAnticipatedRepaymentDateScenarioTwoMember" abstract="true" name="PastTheAnticipatedRepaymentDateScenarioTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_DebtInstrumentInitialAmountDrawn" abstract="false" name="DebtInstrumentInitialAmountDrawn" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dec_DebtInstrumentRestrictedCashInterestReserve" abstract="false" name="DebtInstrumentRestrictedCashInterestReserve" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dec_ABSXNotesClassA1NotesMember" abstract="true" name="ABSXNotesClassA1NotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_ABSXNotesClassA2NotesMember" abstract="true" name="ABSXNotesClassA2NotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_ABSXNotesClassBNotesMember" abstract="true" name="ABSXNotesClassBNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_LoanToValueScenarioThreeMember" abstract="true" name="LoanToValueScenarioThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_LoanToValueScenarioFourMember" abstract="true" name="LoanToValueScenarioFourMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_ABSMaverickNotesMember" abstract="true" name="ABSMaverickNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_ABSMaverickNotesClassA1NotesMember" abstract="true" name="ABSMaverickNotesClassA1NotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_ABSMaverickNotesClassA2NotesMember" abstract="true" name="ABSMaverickNotesClassA2NotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_ABSMaverickNotesClassBNotesMember" abstract="true" name="ABSMaverickNotesClassBNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_DebtInstrumentPremiumPercentage" abstract="false" name="DebtInstrumentPremiumPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="dec_ABSXINotesClassA1NotesMember" abstract="true" name="ABSXINotesClassA1NotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_ABSXINotesClassA2NotesMember" abstract="true" name="ABSXINotesClassA2NotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_ABSXINotesClassBNotesMember" abstract="true" name="ABSXINotesClassBNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_ABSXIINotesClassA1NotesMember" abstract="true" name="ABSXIINotesClassA1NotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_ABSXIINotesClassA2NotesMember" abstract="true" name="ABSXIINotesClassA2NotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_PerformanceTriggerAbscentScenarioOneMember" abstract="true" name="PerformanceTriggerAbscentScenarioOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_PerformanceTriggerAbscentScenarioTwoMember" abstract="true" name="PerformanceTriggerAbscentScenarioTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_PerformanceTriggerAbscentScenarioThreeMember" abstract="true" name="PerformanceTriggerAbscentScenarioThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_LoanToValueRatioScenarioThreeMember" abstract="true" name="LoanToValueRatioScenarioThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_DebtInstrumentIncreaseInPercentageOfExcessCashFlowRequiredToBePaidIfCashFlowExceeds" abstract="false" name="DebtInstrumentIncreaseInPercentageOfExcessCashFlowRequiredToBePaidIfCashFlowExceeds" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="dec_A2026NordicBondsMember" abstract="true" name="A2026NordicBondsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_DebtInstrumentDebtDiscountPercentage" abstract="false" name="DebtInstrumentDebtDiscountPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="dec_DebtInstrumentCovenantComponentAxis" abstract="true" name="DebtInstrumentCovenantComponentAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="dec_DebtInstrumentCovenantComponentDomain" abstract="true" name="DebtInstrumentCovenantComponentDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_DebtInstrumentCovenantOneMember" abstract="true" name="DebtInstrumentCovenantOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_DebtInstrumentCovenantTwoMember" abstract="true" name="DebtInstrumentCovenantTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_DebtInstrumentCovenantComponentFourMember" abstract="true" name="DebtInstrumentCovenantComponentFourMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_DebtInstrumentCovenantMaximumLeverageRatio" abstract="false" name="DebtInstrumentCovenantMaximumLeverageRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="dec_DebtInstrumentCovenantBorrowingBaseAvailabilityPercentage" abstract="false" name="DebtInstrumentCovenantBorrowingBaseAvailabilityPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="dec_DebtInstrumentCovenantTotalDebtToEBITDAXRatioMaximum" abstract="false" name="DebtInstrumentCovenantTotalDebtToEBITDAXRatioMaximum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="dec_DebtInstrumentCovenantCurrentAssetsToCurrentLiabilitiesRatio" abstract="false" name="DebtInstrumentCovenantCurrentAssetsToCurrentLiabilitiesRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="dec_DebtCovenantAddtionalInterestAccrualRateIfDebtIsNotPaidOrRefinanced" abstract="false" name="DebtCovenantAddtionalInterestAccrualRateIfDebtIsNotPaidOrRefinanced" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="dec_DebtInstrumentCovenantMinimumAssetCoverageRatio" abstract="false" name="DebtInstrumentCovenantMinimumAssetCoverageRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="dec_DebtInstrumentCovenantMinimumBookEquityValue" abstract="false" name="DebtInstrumentCovenantMinimumBookEquityValue" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dec_DebtInstrumentCovenantMinimumLiquidityRatio" abstract="false" name="DebtInstrumentCovenantMinimumLiquidityRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="dec_LongTermDebtMaturityAfterYearFour" abstract="false" name="LongTermDebtMaturityAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dec_InterestExpenseDebtMiscellaneous" abstract="false" name="InterestExpenseDebtMiscellaneous" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dec_ABSNotesMember" abstract="true" name="ABSNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_SupplyCommitmentQuantityRemainderOfFiscalYear" abstract="false" name="SupplyCommitmentQuantityRemainderOfFiscalYear" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:volumeItemType"/>
  <xs:element id="dec_SupplyCommitmentQuantityDueYearOne" abstract="false" name="SupplyCommitmentQuantityDueYearOne" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:volumeItemType"/>
  <xs:element id="dec_SupplyCommitmentQuantityDueYearTwo" abstract="false" name="SupplyCommitmentQuantityDueYearTwo" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:volumeItemType"/>
  <xs:element id="dec_SupplyCommitmentQuantityDueYearThree" abstract="false" name="SupplyCommitmentQuantityDueYearThree" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:volumeItemType"/>
  <xs:element id="dec_SupplyCommitmentQuantityDueYearFour" abstract="false" name="SupplyCommitmentQuantityDueYearFour" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:volumeItemType"/>
  <xs:element id="dec_SupplyCommitmentQuantityAfterYearFour" abstract="false" name="SupplyCommitmentQuantityAfterYearFour" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:volumeItemType"/>
  <xs:element id="dec_SupplyCommitmentRemainingAmountCommittedQuantity" abstract="false" name="SupplyCommitmentRemainingAmountCommittedQuantity" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:volumeItemType"/>
  <xs:element id="dec_CashPaidForAmountsIncludedInTheMeasurementOfOperatingLeaseLiabilities" abstract="false" name="CashPaidForAmountsIncludedInTheMeasurementOfOperatingLeaseLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dec_CashPaymentsIncludedInTheMeasurementOfFinanceLeaseLiabilities" abstract="false" name="CashPaymentsIncludedInTheMeasurementOfFinanceLeaseLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dec_CarlyleGlobalCreditInvestmentManagementLLCMember" abstract="true" name="CarlyleGlobalCreditInvestmentManagementLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_NewlyFormedSpecialPurposeVehicleMember" abstract="true" name="NewlyFormedSpecialPurposeVehicleMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dec_OilAndGasPropertyAcquiredOwnershipPercentage" abstract="false" name="OilAndGasPropertyAcquiredOwnershipPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="dec_OilAndGasPropertyAcquiredAcquisitionOfUndevelopedAcreageAmount" abstract="false" name="OilAndGasPropertyAcquiredAcquisitionOfUndevelopedAcreageAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
