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<link:definition>1014 - Disclosure - Summarized Financial Data - Chevron U.S.A. Inc.</link:definition>
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<link:definition>1015 - Disclosure - Summarized Financial Data - Tengizchevroil LLP</link:definition>
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<link:definition>1021 - Disclosure - Earnings Per Share</link:definition>
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<link:definition>1022 - Disclosure - Operating Segments and Geographic Data</link:definition>
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<link:definition>1025 - Disclosure - Taxes</link:definition>
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<link:definition>1026 - Disclosure - Properties, Plant and Equipment</link:definition>
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<link:definition>1027 - Disclosure - Short-Term Debt</link:definition>
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<link:definition>1028 - Disclosure - Long-Term Debt</link:definition>
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<link:definition>1029 - Disclosure - Accounting for Suspended Exploratory Wells</link:definition>
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<link:definition>1030 - Disclosure - Stock Options and Other Share-Based Compensation</link:definition>
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<link:definition>1031 - Disclosure - Employee Benefit Plans</link:definition>
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<link:definition>1032 - Disclosure - Other Contingencies and Commitments</link:definition>
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<link:definition>1033 - Disclosure - Asset Retirement Obligations</link:definition>
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<link:definition>1035 - Disclosure - Other Financial Information</link:definition>
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<link:definition>1037 - Disclosure - Acquisition of PDC Energy, Inc.</link:definition>
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<link:definition>1038 - Disclosure - Agreement to Acquire Hess Corporation</link:definition>
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<link:definition>1040 - Disclosure - Summary of Significant Accounting Policies (Policies)</link:definition>
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<link:definition>1041 - Disclosure - Changes in Accumulated Other Comprehensive Losses (Tables)</link:definition>
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<link:definition>1042 - Disclosure - Information Relating to the Consolidated Statement of Cash Flows (Tables)</link:definition>
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<link:definition>1043 - Disclosure - Lease Commitments (Tables)</link:definition>
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<link:definition>1046 - Disclosure - Summarized Financial Data - Chevron Phillips Chemical Company LLC (Tables)</link:definition>
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<link:definition>1047 - Disclosure - Fair Value Measurements (Tables)</link:definition>
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<link:definition>1048 - Disclosure - Financial and Derivative Instruments (Tables)</link:definition>
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<link:definition>1049 - Disclosure - Earnings Per Share (Tables)</link:definition>
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<link:definition>1050 - Disclosure - Operating Segments and Geographic Data (Tables)</link:definition>
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<link:definition>1051 - Disclosure - Investments and Advances (Tables)</link:definition>
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<link:definition>1052 - Disclosure - Taxes (Tables)</link:definition>
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<link:definition>1053 - Disclosure - Properties, Plant and Equipment (Tables)</link:definition>
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<link:definition>1054 - Disclosure - Short-Term Debt (Tables)</link:definition>
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<link:definition>1055 - Disclosure - Long-Term Debt (Tables)</link:definition>
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<link:definition>1056 - Disclosure - Accounting for Suspended Exploratory Wells (Tables)</link:definition>
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<link:definition>1057 - Disclosure - Stock Options and Other Share-Based Compensation (Tables)</link:definition>
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<link:definition>1058 - Disclosure - Employee Benefit Plans (Tables)</link:definition>
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<link:definition>1059 - Disclosure - Asset Retirement Obligations (Tables)</link:definition>
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<link:definition>1060 - Disclosure - Acquisition of PDC Energy, Inc. (Tables)</link:definition>
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<link:roleType roleURI="http://www.chevron.com/role/SummaryOfSignificantAccountingPoliciesDetails" id="SummaryOfSignificantAccountingPoliciesDetails">
<link:definition>1061 - Disclosure - Summary of Significant Accounting Policies (Details)</link:definition>
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<link:roleType roleURI="http://www.chevron.com/role/ChangesInAccumulatedOtherComprehensiveLossesDetails" id="ChangesInAccumulatedOtherComprehensiveLossesDetails">
<link:definition>1062 - Disclosure - Changes in Accumulated Other Comprehensive Losses (Details)</link:definition>
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<link:roleType roleURI="http://www.chevron.com/role/InformationRelatingToTheConsolidatedStatementOfCashFlowsSummaryOfInformationDetails" id="InformationRelatingToTheConsolidatedStatementOfCashFlowsSummaryOfInformationDetails">
<link:definition>1063 - Disclosure - Information Relating to the Consolidated Statement of Cash Flows - Summary of Information (Details)</link:definition>
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<link:definition>1064 - Disclosure - Information Relating to the Consolidated Statement of Cash Flows - Narrative (Details)</link:definition>
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<link:roleType roleURI="http://www.chevron.com/role/InformationRelatingToTheConsolidatedStatementOfCashFlowsCashBalancesDetails" id="InformationRelatingToTheConsolidatedStatementOfCashFlowsCashBalancesDetails">
<link:definition>1065 - Disclosure - Information Relating to the Consolidated Statement of Cash Flows - Cash Balances (Details)</link:definition>
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<link:definition>1066 - Disclosure - Lease Commitments - Balance Sheets (Details)</link:definition>
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<link:definition>1067 - Disclosure - Lease Commitments - Lease Cost (Details)</link:definition>
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<link:definition>1068 - Disclosure - Lease Commitments - Cash Paid (Details)</link:definition>
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<link:definition>1069 - Disclosure - Lease Commitments - ASC 842 (Details)</link:definition>
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<link:roleType roleURI="http://www.chevron.com/role/LeaseCommitmentsNarrativeDetails" id="LeaseCommitmentsNarrativeDetails">
<link:definition>1070 - Disclosure - Lease Commitments - Narrative (Details)</link:definition>
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<link:definition>1071 - Disclosure - Summarized Financial Data - Chevron U.S.A. Inc. - Summary of Income Statement Information (Details)</link:definition>
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<link:definition>1072 - Disclosure - Summarized Financial Data - Chevron U.S.A. Inc. - Summary of Balance Sheet Information (Details)</link:definition>
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<link:definition>1073 - Disclosure - Summarized Financial Data - Tengizchevroil LLP - Summary of Income Statement Information (Details)</link:definition>
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<link:definition>1074 - Disclosure - Summarized Financial Data - Tengizchevroil LLP - Summary of Balance Sheet Information (Details)</link:definition>
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<link:definition>1075 - Disclosure - Summarized Financial Data - Chevron Phillips Chemical Company LLC - Summary of Income Statement Information (Details)</link:definition>
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<link:definition>1076 - Disclosure - Summarized Financial Data - Chevron Phillips Chemical Company LLC - Summary of Balance Sheet Information (Details)</link:definition>
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<link:definition>1077 - Disclosure - Fair Value Measurements - Summary of Assets and Liabilities Measured on a Recurring Basis (Details)</link:definition>
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<link:roleType roleURI="http://www.chevron.com/role/FairValueMeasurementsSummaryOfAssetsAndLiabilitiesMeasuredOnANonRecurringBasisDetails" id="FairValueMeasurementsSummaryOfAssetsAndLiabilitiesMeasuredOnANonRecurringBasisDetails">
<link:definition>1078 - Disclosure - Fair Value Measurements - Summary of Assets and Liabilities Measured On a Non-Recurring Basis (Details)</link:definition>
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<link:roleType roleURI="http://www.chevron.com/role/FairValueMeasurementsNarrativeDetails" id="FairValueMeasurementsNarrativeDetails">
<link:definition>1079 - Disclosure - Fair Value Measurements - Narrative (Details)</link:definition>
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<link:definition>1080 - Disclosure - Financial and Derivative Instruments - Fair Value of Derivatives Not Designated as Hedging Instruments (Details)</link:definition>
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<link:definition>1081 - Disclosure - Financial and Derivative Instruments - Effect of Derivatives Not Designated On Hedging Instruments (Details)</link:definition>
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</link:roleType>
<link:roleType roleURI="http://www.chevron.com/role/FinancialAndDerivativeInstrumentsAdditionalInformationDetails" id="FinancialAndDerivativeInstrumentsAdditionalInformationDetails">
<link:definition>1082 - Disclosure - Financial and Derivative Instruments - Additional Information (Details)</link:definition>
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<link:definition>1083 - Disclosure - Financial and Derivative Instruments - Effect of Netting Derivative Assets and Liabilities (Details)</link:definition>
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</link:roleType>
<link:roleType roleURI="http://www.chevron.com/role/AssetsHeldForSaleDetails" id="AssetsHeldForSaleDetails">
<link:definition>1084 - Disclosure - Assets Held for Sale (Details)</link:definition>
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<link:usedOn>link:calculationLink</link:usedOn>
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<link:definition>1085 - Disclosure - Equity (Details)</link:definition>
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<link:definition>1086 - Disclosure - Earnings Per Share (Details)</link:definition>
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<link:roleType roleURI="http://www.chevron.com/role/OperatingSegmentsAndGeographicDataNarrativeDetails" id="OperatingSegmentsAndGeographicDataNarrativeDetails">
<link:definition>1087 - Disclosure - Operating Segments and Geographic Data - Narrative (Details)</link:definition>
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<link:usedOn>link:definitionLink</link:usedOn>
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<link:roleType roleURI="http://www.chevron.com/role/OperatingSegmentsAndGeographicDataSegmentEarningsDetails" id="OperatingSegmentsAndGeographicDataSegmentEarningsDetails">
<link:definition>1088 - Disclosure - Operating Segments and Geographic Data - Segment Earnings (Details)</link:definition>
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<link:definition>1089 - Disclosure - Operating Segments and Geographic Data - Segment Assets (Details)</link:definition>
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<link:definition>1090 - Disclosure - Operating Segments and Geographic Data - Segment Sales and Operating Revenues (Details)</link:definition>
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<link:usedOn>link:definitionLink</link:usedOn>
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<link:roleType roleURI="http://www.chevron.com/role/OperatingSegmentsAndGeographicDataSegmentIncomeTaxesDetails" id="OperatingSegmentsAndGeographicDataSegmentIncomeTaxesDetails">
<link:definition>1091 - Disclosure - Operating Segments and Geographic Data - Segment Income Taxes (Details)</link:definition>
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<link:definition>1092 - Disclosure - Investments and Advances - Summary of Investment and Advances and Equity in Earnings (Details)</link:definition>
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</link:roleType>
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<link:definition>1093 - Disclosure - Investments and Advances - Narrative (Details)</link:definition>
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<link:usedOn>link:definitionLink</link:usedOn>
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<link:definition>1094 - Disclosure - Investments and Advances - Summary of Financial Information of All Equity Affiliates (Details)</link:definition>
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<link:definition>1095 - Disclosure - Litigation (Details)</link:definition>
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</link:roleType>
<link:roleType roleURI="http://www.chevron.com/role/TaxesSummaryOfComponentsOfIncomeTaxDetails" id="TaxesSummaryOfComponentsOfIncomeTaxDetails">
<link:definition>1096 - Disclosure - Taxes - Summary of Components of Income Tax (Details)</link:definition>
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<link:roleType roleURI="http://www.chevron.com/role/TaxesEffectiveIncomeTaxReconciliationDetails" id="TaxesEffectiveIncomeTaxReconciliationDetails">
<link:definition>1097 - Disclosure - Taxes - Effective Income Tax Reconciliation (Details)</link:definition>
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<link:definition>1098 - Disclosure - Taxes - Narrative (Details)</link:definition>
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<link:usedOn>link:definitionLink</link:usedOn>
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<link:roleType roleURI="http://www.chevron.com/role/TaxesSummaryOfDeferredTaxAssetsAndLiabilitiesDetails" id="TaxesSummaryOfDeferredTaxAssetsAndLiabilitiesDetails">
<link:definition>1099 - Disclosure - Taxes - Summary of Deferred Tax Assets and Liabilities (Details)</link:definition>
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<link:usedOn>link:definitionLink</link:usedOn>
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<link:definition>1100 - Disclosure - Taxes - Summary of Unrecognized Income Tax Benefits and Taxes Other Than on Income (Details)</link:definition>
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<link:roleType roleURI="http://www.chevron.com/role/PropertiesPlantAndEquipmentDetails" id="PropertiesPlantAndEquipmentDetails">
<link:definition>1101 - Disclosure - Properties, Plant and Equipment (Details)</link:definition>
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<link:usedOn>link:definitionLink</link:usedOn>
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<link:definition>1102 - Disclosure - Short-Term Debt - Summary (Details)</link:definition>
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<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.chevron.com/role/ShortTermDebtNarrativeDetails" id="ShortTermDebtNarrativeDetails">
<link:definition>1103 - Disclosure - Short-Term Debt - Narrative (Details)</link:definition>
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<link:definition>1104 - Disclosure - Long-Term Debt (Details)</link:definition>
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<link:definition>1105 - Disclosure - Accounting for Suspended Exploratory Wells - Summary of Changes and Aging of Capitalized Well Costs (Details)</link:definition>
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<link:usedOn>link:definitionLink</link:usedOn>
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<link:roleType roleURI="http://www.chevron.com/role/AccountingForSuspendedExploratoryWellsNarrativeDetails" id="AccountingForSuspendedExploratoryWellsNarrativeDetails">
<link:definition>1106 - Disclosure - Accounting for Suspended Exploratory Wells - Narrative (Details)</link:definition>
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<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
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<link:definition>1107 - Disclosure - Accounting for Suspended Exploratory Wells - Aging of Costs on a Well and Project Basis (Details)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
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<link:definition>1108 - Disclosure - Stock Options and Other Share-Based Compensation - Narrative (Details)</link:definition>
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<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
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<link:definition>1109 - Disclosure - Stock Options and Other Share-Based Compensation - Summary of Valuation Assumptions and Activity (Details)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
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<link:roleType roleURI="http://www.chevron.com/role/EmployeeBenefitPlansNarrativeDetails" id="EmployeeBenefitPlansNarrativeDetails">
<link:definition>1110 - Disclosure - Employee Benefit Plans - Narrative (Details)</link:definition>
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<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
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<link:roleType roleURI="http://www.chevron.com/role/EmployeeBenefitPlansSummaryOfChangeInBenefitObligationAndPlanAssetsDetails" id="EmployeeBenefitPlansSummaryOfChangeInBenefitObligationAndPlanAssetsDetails">
<link:definition>1111 - Disclosure - Employee Benefit Plans - Summary of Change in Benefit Obligation and Plan Assets (Details)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.chevron.com/role/EmployeeBenefitPlansSummaryOfBalanceSheetComponentsDetails" id="EmployeeBenefitPlansSummaryOfBalanceSheetComponentsDetails">
<link:definition>1112 - Disclosure - Employee Benefit Plans - Summary of Balance Sheet Components (Details)</link:definition>
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<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
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<link:definition>1113 - Disclosure - Employee Benefit Plans - Amounts Recognized in Accumulated Other Comprehensive Loss (Details)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
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<link:definition>1114 - Disclosure - Employee Benefit Plans - Accumulated Benefit Obligation in Excess of Plan Assets (Details)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.chevron.com/role/EmployeeBenefitPlansNetPeriodicBenefitCostDetails" id="EmployeeBenefitPlansNetPeriodicBenefitCostDetails">
<link:definition>1115 - Disclosure - Employee Benefit Plans - Net Periodic Benefit Cost (Details)</link:definition>
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<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
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<link:roleType roleURI="http://www.chevron.com/role/EmployeeBenefitPlansAssumptionsDetails" id="EmployeeBenefitPlansAssumptionsDetails">
<link:definition>1116 - Disclosure - Employee Benefit Plans - Assumptions (Details)</link:definition>
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<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
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<link:roleType roleURI="http://www.chevron.com/role/EmployeeBenefitPlansPlanAssetsDetails" id="EmployeeBenefitPlansPlanAssetsDetails">
<link:definition>1117 - Disclosure - Employee Benefit Plans - Plan Assets (Details)</link:definition>
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<link:usedOn>link:calculationLink</link:usedOn>
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<link:definition>1118 - Disclosure - Employee Benefit Plans - Summary of Change in Assets Measured at Level 3 (Details)</link:definition>
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<link:definition>1119 - Disclosure - Employee Benefit Plans - Expected Benefit Payments (Details)</link:definition>
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<link:definition>1120 - Disclosure - Other Contingencies and Commitments (Details)</link:definition>
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<link:usedOn>link:calculationLink</link:usedOn>
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<link:definition>1121 - Disclosure - Asset Retirement Obligations (Details)</link:definition>
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<link:definition>1122 - Disclosure - Revenue (Details)</link:definition>
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<link:definition>1123 - Disclosure - Other Financial Information (Details)</link:definition>
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<link:definition>1124 - Disclosure - Financial Instruments - Credit Losses (Details)</link:definition>
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<link:usedOn>link:calculationLink</link:usedOn>
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<link:definition>1125 - Disclosure - Acquisition of PDC Energy, Inc. - Narrative (Details)</link:definition>
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<link:definition>1126 - Disclosure - Acquisition of PDC Energy, Inc. - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed (Details)</link:definition>
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<link:definition>1127 - Disclosure - Agreement to Acquire Hess Corporation (Details)</link:definition>
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<link:usedOn>link:calculationLink</link:usedOn>
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<link:definition>1128 - Disclosure - Schedule II - Valuation and Qualifying Accounts (Details)</link:definition>
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<link:definition>1129 - Statement - Accounting for Suspended Exploratory Wells - Summary of Changes and Aging of Capitalized Well Costs (Details) Alternate 1</link:definition>
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