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  <xs:element id="oxy_MinimumPeriodOfExpendingSecondHalfOfEnvironmentalReserves" abstract="false" name="MinimumPeriodOfExpendingSecondHalfOfEnvironmentalReserves" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="oxy_EnvironmentalRemediationPossibleAdditionalLossBeyondAccruals" abstract="false" name="EnvironmentalRemediationPossibleAdditionalLossBeyondAccruals" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="oxy_RiverStretchWhichMayRequireRemedialActions" abstract="false" name="RiverStretchWhichMayRequireRemedialActions" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:lengthItemType"/>
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  <xs:element id="oxy_ArbitrationDemandFiledByAndesPetroleumEcuadorLtdMember" abstract="true" name="ArbitrationDemandFiledByAndesPetroleumEcuadorLtdMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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  <xs:element id="oxy_NumberOfPartiesSettled" abstract="false" name="NumberOfPartiesSettled" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="oxy_NumberOfCompaniesExcludedFromSettlement" abstract="false" name="NumberOfCompaniesExcludedFromSettlement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
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  <xs:element id="oxy_AdditionalCashTaxBenefitsRealizedFromUtilizationOfTaxAttributesFromDeductionOfLegalSettlement" abstract="false" name="AdditionalCashTaxBenefitsRealizedFromUtilizationOfTaxAttributesFromDeductionOfLegalSettlement" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="oxy_PaymentsForLegalSettlementsInterestAmount" abstract="false" name="PaymentsForLegalSettlementsInterestAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="oxy_LossContingencyPotentialIncomeTaxExpenseBenefitAccruedInterest" abstract="false" name="LossContingencyPotentialIncomeTaxExpenseBenefitAccruedInterest" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="oxy_StrikePriceTwoMember" abstract="true" name="StrikePriceTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="oxy_WarrantsAndStockOptionsExercisesInPeriod" abstract="false" name="WarrantsAndStockOptionsExercisesInPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="oxy_ProceedsFromWarrantAndStockOptionExercises" abstract="false" name="ProceedsFromWarrantAndStockOptionExercises" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="oxy_PreferredStockVoluntaryRedemptionPercentage" abstract="false" name="PreferredStockVoluntaryRedemptionPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="oxy_PreferredStockDividendRateForUnpaidAmountsPercentage" abstract="false" name="PreferredStockDividendRateForUnpaidAmountsPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
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  <xs:element id="oxy_StockSettledRestrictedStockUnitMember" abstract="true" name="StockSettledRestrictedStockUnitMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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</xs:schema>
