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  <xsd:element id="nbl_CreditFacilityAggregateShortTermLoansAndLettersOfCreditMaximum" name="CreditFacilityAggregateShortTermLoansAndLettersOfCreditMaximum" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
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  <xsd:element id="nbl_CreditFacilityInterestRateEurodollarRatePlusMinimum" name="CreditFacilityInterestRateEurodollarRatePlusMinimum" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
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  <xsd:element abstract="true" id="nbl_DalitIsraelMember" name="DalitIsraelMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="nbl_DebtExchangePercentofOutstandingNotesTenderedforExchange" name="DebtExchangePercentofOutstandingNotesTenderedforExchange" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="nbl_DeepwaterGulfOfMexicoMember" name="DeepwaterGulfOfMexicoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="nbl_DeferredCompensationArrangementMostSharesHeldByIndividual" name="DeferredCompensationArrangementMostSharesHeldByIndividual" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
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  <xsd:element id="nbl_DeferredCompensationArrangementMutualFundInvestments" name="DeferredCompensationArrangementMutualFundInvestments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
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  <xsd:element id="nbl_DeferredCompensationArrangementsTrustPlanDistributionAmount" name="DeferredCompensationArrangementsTrustPlanDistributionAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
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  <xsd:element id="nbl_DeferredTaxAssetAndLiabilityBalanceSheetClassificationTableTextBlock" name="DeferredTaxAssetAndLiabilityBalanceSheetClassificationTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="nbl_DefinedBenefitPlanSettlementandCurtailmentsPeriod" name="DefinedBenefitPlanSettlementandCurtailmentsPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
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  <xsd:element id="nbl_DepreciationDepletionAndAmortizationIncludingDiscontinuedOperations" name="DepreciationDepletionAndAmortizationIncludingDiscontinuedOperations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
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  <xsd:element abstract="true" id="nbl_DrillingEquipmentAndPurchaseCommitmentsMember" name="DrillingEquipmentAndPurchaseCommitmentsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
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  <xsd:element abstract="true" id="nbl_EagleFordShaleandPermianDelawareBasinMember" name="EagleFordShaleandPermianDelawareBasinMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_EasternMediterraneanMember" name="EasternMediterraneanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="nbl_EffectiveIncomeTaxRateReconciliationDeductionOilProfitsTaxinForeignCountry" name="EffectiveIncomeTaxRateReconciliationDeductionOilProfitsTaxinForeignCountry" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="nbl_EffectiveIncomeTaxRateReconciliationGoodwillImpairmentPercent" name="EffectiveIncomeTaxRateReconciliationGoodwillImpairmentPercent" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_EffectiveTaxRateReconcilingItemsAbstract" name="EffectiveTaxRateReconcilingItemsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
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  <xsd:element abstract="true" id="nbl_ExplorationExpenseAndOtherMember" name="ExplorationExpenseAndOtherMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="nbl_FairValueLiabilitiesMeasuredOnRecurringBasisCommodityDerivativeFinancialInstrumentsLiabilities" name="FairValueLiabilitiesMeasuredOnRecurringBasisCommodityDerivativeFinancialInstrumentsLiabilities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
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  <xsd:element abstract="true" id="nbl_Firsthalf2016Member" name="Firsthalf2016Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_Firsthalf2017Member" name="Firsthalf2017Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_ForeignCountriesMember" name="ForeignCountriesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_ForeignLossCarryforwardMember" name="ForeignLossCarryforwardMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_ForeignTaxCreditMember" name="ForeignTaxCreditMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_FpsoLeaseCommitmentsMember" name="FpsoLeaseCommitmentsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_GulfofMexicoandEasternMediterraneanMember" name="GulfofMexicoandEasternMediterraneanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_ImpairedLongLivedAssetsHeldandUsedTextAbstract" name="ImpairedLongLivedAssetsHeldandUsedTextAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="nbl_ImpairmentOfMaterialsAndSupplyInventory" name="ImpairmentOfMaterialsAndSupplyInventory" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="nbl_IncomeLossFromContinuingOperationsAvailableToCommonStockholdersDiluted" name="IncomeLossFromContinuingOperationsAvailableToCommonStockholdersDiluted" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_KatmaiDeepwaterGulfOfMexicoMember" name="KatmaiDeepwaterGulfOfMexicoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_Leviathan1DeepOffshoreIsraelMember" name="Leviathan1DeepOffshoreIsraelMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
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  <xsd:element id="nbl_LitigationSettlementReductionToPenalties" name="LitigationSettlementReductionToPenalties" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
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  <xsd:element abstract="true" id="nbl_MarcellusShaleFirmTransportationAgreementMember" name="MarcellusShaleFirmTransportationAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="nbl_MaterialandSupplyInventoryNetBookValue" name="MaterialandSupplyInventoryNetBookValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="nbl_MaximumAmountToBePaidEachCalendarYearForFundingOfFutureDrillingAndCompletionCosts" name="MaximumAmountToBePaidEachCalendarYearForFundingOfFutureDrillingAndCompletionCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
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  <xsd:element id="nbl_NaturalGasPriceAgreedUponBenchmarkAverage" name="NaturalGasPriceAgreedUponBenchmarkAverage" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="duration" />
  <xsd:element id="nbl_NetBookValueOfAssetsSold" name="NetBookValueOfAssetsSold" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
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  <xsd:element abstract="true" id="nbl_NoncurrentLiabilitiesMember" name="NoncurrentLiabilitiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_NonqualifiedStockOptionPlanForNonemployeeDirectors1988Member" name="NonqualifiedStockOptionPlanForNonemployeeDirectors1988Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_NorthSeaAssetsMember" name="NorthSeaAssetsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_NorthSeaMember" name="NorthSeaMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="nbl_OilandGasPropertyNetBookValue" name="OilandGasPropertyNetBookValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_OnshoreUSMember" name="OnshoreUSMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_OperatingLeaseCommitmentsMember" name="OperatingLeaseCommitmentsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
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  <xsd:element id="nbl_OtherIncomeExpenseNet" name="OtherIncomeExpenseNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_OtherInvesteesMember" name="OtherInvesteesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_OtherOnshoreUsMember" name="OtherOnshoreUsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_OtherOperatingExpenseNetAbstract" name="OtherOperatingExpenseNetAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_OtherProjectsMember" name="OtherProjectsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="nbl_PensionAndOtherPostretirementPlansTerminationExpense" name="PensionAndOtherPostretirementPlansTerminationExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_PermianMember" name="PermianMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_ProductonExpenseAbstract" name="ProductonExpenseAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="nbl_PropertyPlantAndEquipmentOtherPropertyUsefulLife" name="PropertyPlantAndEquipmentOtherPropertyUsefulLife" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_RabbiTrustMember" name="RabbiTrustMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="nbl_Remainingobligationofjointventuresfuturedrillingandcompletioncosts" name="Remainingobligationofjointventuresfuturedrillingandcompletioncosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="nbl_RetainedEarningsEquityMethodUndistributed" name="RetainedEarningsEquityMethodUndistributed" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_RosettaResourcesIncMember" name="RosettaResourcesIncMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
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</xsd:schema>
</XBRL>