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  <xsd:element abstract="true" id="nbl_SwapsNYMEXHH2016Member" name="SwapsNYMEXHH2016Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_SwapsNYMEXWTI2016Member" name="SwapsNYMEXWTI2016Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_SwapsNymexHh2015Member" name="SwapsNymexHh2015Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_SwapsNymexWti2015Member" name="SwapsNymexWti2015Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_ThreeWayCollarsDatedBrent2015Member" name="ThreeWayCollarsDatedBrent2015Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_ThreeWayCollarsDatedBrent2016Member" name="ThreeWayCollarsDatedBrent2016Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_ThreeWayCollarsNYMEXHH2016Member" name="ThreeWayCollarsNYMEXHH2016Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_ThreeWayCollarsNYMEXWTI2016Member" name="ThreeWayCollarsNYMEXWTI2016Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_ThreeWayCollarsNymexHh2015Member" name="ThreeWayCollarsNymexHh2015Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_ThreeWayCollarsNymexWti2015Member" name="ThreeWayCollarsNymexWti2015Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="nbl_TotalOfMaturities" name="TotalOfMaturities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="nbl_TotalRabbiTrustPlanAssets" name="TotalRabbiTrustPlanAssets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="nbl_TransportationAgreementCommitmentsMember" name="TransportationAgreementCommitmentsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="nbl_TreasuryStockPolicyTextBlock" name="TreasuryStockPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_TreasuryStockSharesRollForward" name="TreasuryStockSharesRollForward" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_TroubadourDeepwaterGulfofMexicoMember" name="TroubadourDeepwaterGulfofMexicoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_UsOnshoreAssetsSoldMember" name="UsOnshoreAssetsSoldMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="nbl_ValuationAllowanceDeferredTaxAssetReversal" name="ValuationAllowanceDeferredTaxAssetReversal" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="nbl_WeightedAverageExercisePriceOfAntidilutiveOptions" name="WeightedAverageExercisePriceOfAntidilutiveOptions" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="nbl_YearsRemainingOpenToExaminationAbstract" name="YearsRemainingOpenToExaminationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_YolandaOffshoreEquatorialGuineaMember" name="YolandaOffshoreEquatorialGuineaMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="nbl_YoyoOffshoreCameronMember" name="YoyoOffshoreCameronMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>
</XBRL>