<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019e2ce2-b060-7f0d-9e86-8ac03ef53d36,g:7cd241a6-7f64-46de-a156-fc235cc3ff72-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="https://xbrl.org/2023/arcrole/summation-item" xlink:type="simple" xlink:href="https://www.xbrl.org/2023/calculation-1.1.xsd#summation-item"/>
  <link:roleRef roleURI="http://www.conocophillips.com/role/ConsolidatedIncomeStatement" xlink:type="simple" xlink:href="cop-20260630.xsd#ConsolidatedIncomeStatement"/>
  <link:calculationLink xlink:role="http://www.conocophillips.com/role/ConsolidatedIncomeStatement" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_cop_OperatingExpensesIncludingNonoperatingIncomeExpenseAndInterestAndDebtExpense_019e2ce2-b2bd-7e84-a2ed-171e8d9b69e8" xlink:href="cop-20260630.xsd#cop_OperatingExpensesIncludingNonoperatingIncomeExpenseAndInterestAndDebtExpense"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_019e2ce2-b2bd-7136-a2b1-f7bb2252e069" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_cop_OperatingExpensesIncludingNonoperatingIncomeExpenseAndInterestAndDebtExpense_019e2ce2-b2bd-7e84-a2ed-171e8d9b69e8" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_019e2ce2-b2bd-7136-a2b1-f7bb2252e069" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetImpairmentCharges_019e2ce2-b2bd-7add-a3ae-17584afaa5ba" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetImpairmentCharges"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_cop_OperatingExpensesIncludingNonoperatingIncomeExpenseAndInterestAndDebtExpense_019e2ce2-b2bd-7e84-a2ed-171e8d9b69e8" xlink:to="loc_us-gaap_AssetImpairmentCharges_019e2ce2-b2bd-7add-a3ae-17584afaa5ba" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccretionExpenseIncludingAssetRetirementObligations_019e2ce2-b2bd-7048-b95c-79f3185676f8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccretionExpenseIncludingAssetRetirementObligations"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_cop_OperatingExpensesIncludingNonoperatingIncomeExpenseAndInterestAndDebtExpense_019e2ce2-b2bd-7e84-a2ed-171e8d9b69e8" xlink:to="loc_us-gaap_AccretionExpenseIncludingAssetRetirementObligations_019e2ce2-b2bd-7048-b95c-79f3185676f8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_019e2ce2-b2bd-7c50-970e-c0014070c453" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_cop_OperatingExpensesIncludingNonoperatingIncomeExpenseAndInterestAndDebtExpense_019e2ce2-b2bd-7e84-a2ed-171e8d9b69e8" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_019e2ce2-b2bd-7c50-970e-c0014070c453" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ExplorationExpense_019e2ce2-b2bd-7e0b-9d64-c3d87405aae4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ExplorationExpense"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_cop_OperatingExpensesIncludingNonoperatingIncomeExpenseAndInterestAndDebtExpense_019e2ce2-b2bd-7e84-a2ed-171e8d9b69e8" xlink:to="loc_us-gaap_ExplorationExpense_019e2ce2-b2bd-7e0b-9d64-c3d87405aae4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_019e2ce2-b2bd-73eb-a79d-eb33a87b98c6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SellingGeneralAndAdministrativeExpense"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_cop_OperatingExpensesIncludingNonoperatingIncomeExpenseAndInterestAndDebtExpense_019e2ce2-b2bd-7e84-a2ed-171e8d9b69e8" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_019e2ce2-b2bd-73eb-a79d-eb33a87b98c6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_019e2ce2-b2bd-768b-8b89-6753b6b8506d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_cop_OperatingExpensesIncludingNonoperatingIncomeExpenseAndInterestAndDebtExpense_019e2ce2-b2bd-7e84-a2ed-171e8d9b69e8" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_019e2ce2-b2bd-768b-8b89-6753b6b8506d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_019e2ce2-b2bd-79c6-a972-2f265f6c2e84" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ForeignCurrencyTransactionGainLossBeforeTax"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_cop_OperatingExpensesIncludingNonoperatingIncomeExpenseAndInterestAndDebtExpense_019e2ce2-b2bd-7e84-a2ed-171e8d9b69e8" xlink:to="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_019e2ce2-b2bd-79c6-a972-2f265f6c2e84" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingCostsAndExpenses_019e2ce2-b2bd-7793-97cd-ea7399e65558" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingCostsAndExpenses"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_cop_OperatingExpensesIncludingNonoperatingIncomeExpenseAndInterestAndDebtExpense_019e2ce2-b2bd-7e84-a2ed-171e8d9b69e8" xlink:to="loc_us-gaap_OperatingCostsAndExpenses_019e2ce2-b2bd-7793-97cd-ea7399e65558" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestAndDebtExpense_019e2ce2-b2bd-707e-840a-87de45b195a1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestAndDebtExpense"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_cop_OperatingExpensesIncludingNonoperatingIncomeExpenseAndInterestAndDebtExpense_019e2ce2-b2bd-7e84-a2ed-171e8d9b69e8" xlink:to="loc_us-gaap_InterestAndDebtExpense_019e2ce2-b2bd-707e-840a-87de45b195a1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TaxesExcludingIncomeAndExciseTaxes_019e2ce2-b2bd-7c7a-b494-802028dedb38" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TaxesExcludingIncomeAndExciseTaxes"/>
    <link:calculationArc order="11" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_cop_OperatingExpensesIncludingNonoperatingIncomeExpenseAndInterestAndDebtExpense_019e2ce2-b2bd-7e84-a2ed-171e8d9b69e8" xlink:to="loc_us-gaap_TaxesExcludingIncomeAndExciseTaxes_019e2ce2-b2bd-7c7a-b494-802028dedb38" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e2ce2-b2bd-7653-963a-f7f4759cd456" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_cop_OperatingExpensesIncludingNonoperatingIncomeExpenseAndInterestAndDebtExpense_019e2ce2-b2bd-7f63-8b6a-fd76ca03f2c1" xlink:href="cop-20260630.xsd#cop_OperatingExpensesIncludingNonoperatingIncomeExpenseAndInterestAndDebtExpense"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e2ce2-b2bd-7653-963a-f7f4759cd456" xlink:to="loc_cop_OperatingExpensesIncludingNonoperatingIncomeExpenseAndInterestAndDebtExpense_019e2ce2-b2bd-7f63-8b6a-fd76ca03f2c1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cop_RevenuesAndOtherIncome_019e2ce2-b2bd-7216-bb95-ec3496edbf42" xlink:href="cop-20260630.xsd#cop_RevenuesAndOtherIncome"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e2ce2-b2bd-7653-963a-f7f4759cd456" xlink:to="loc_cop_RevenuesAndOtherIncome_019e2ce2-b2bd-7216-bb95-ec3496edbf42" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cop_RevenuesAndOtherIncome_019e2ce2-b2bd-71d8-9ef0-5f69de92dc48" xlink:href="cop-20260630.xsd#cop_RevenuesAndOtherIncome"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_019e2ce2-b2bd-7e87-b1d1-1ce3290327cc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromEquityMethodInvestments"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_cop_RevenuesAndOtherIncome_019e2ce2-b2bd-71d8-9ef0-5f69de92dc48" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_019e2ce2-b2bd-7e87-b1d1-1ce3290327cc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_019e2ce2-b2bd-74fd-97ba-2c248ce005c2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainLossOnSaleOfPropertyPlantEquipment"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_cop_RevenuesAndOtherIncome_019e2ce2-b2bd-71d8-9ef0-5f69de92dc48" xlink:to="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_019e2ce2-b2bd-74fd-97ba-2c248ce005c2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_019e2ce2-b2bd-76b1-872e-a6f07cfc1746" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Revenues"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_cop_RevenuesAndOtherIncome_019e2ce2-b2bd-71d8-9ef0-5f69de92dc48" xlink:to="loc_us-gaap_Revenues_019e2ce2-b2bd-76b1-872e-a6f07cfc1746" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherOperatingIncomeExpenseNet_019e2ce2-b2bd-7396-947f-3ff307d74bb8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherOperatingIncomeExpenseNet"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_cop_RevenuesAndOtherIncome_019e2ce2-b2bd-71d8-9ef0-5f69de92dc48" xlink:to="loc_us-gaap_OtherOperatingIncomeExpenseNet_019e2ce2-b2bd-7396-947f-3ff307d74bb8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019e2ce2-b2bd-7607-a8e4-02b6353e097b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_019e2ce2-b2bd-7597-850c-2cbc0c0f0bc7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019e2ce2-b2bd-7607-a8e4-02b6353e097b" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_019e2ce2-b2bd-7597-850c-2cbc0c0f0bc7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e2ce2-b2bd-75f0-aace-d63bc95fda12" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019e2ce2-b2bd-7607-a8e4-02b6353e097b" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e2ce2-b2bd-75f0-aace-d63bc95fda12" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.conocophillips.com/role/ConsolidatedStatementofComprehensiveIncome" xlink:type="simple" xlink:href="cop-20260630.xsd#ConsolidatedStatementofComprehensiveIncome"/>
  <link:calculationLink xlink:role="http://www.conocophillips.com/role/ConsolidatedStatementofComprehensiveIncome" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_019e2ce2-b38a-7ff0-beb1-6ab3d41a8aa3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019e2ce2-b38a-7244-86c1-f16772c589e6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_019e2ce2-b38a-7ff0-beb1-6ab3d41a8aa3" xlink:to="loc_us-gaap_NetIncomeLoss_019e2ce2-b38a-7244-86c1-f16772c589e6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019e2ce2-b38a-7bb3-83bf-3271cbadba73" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_019e2ce2-b38a-7ff0-beb1-6ab3d41a8aa3" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019e2ce2-b38a-7bb3-83bf-3271cbadba73" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019e2ce2-b38a-745a-b4ec-4b640d7171d2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_019e2ce2-b38a-7d9f-b0ff-9ba81f700906" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019e2ce2-b38a-745a-b4ec-4b640d7171d2" xlink:to="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_019e2ce2-b38a-7d9f-b0ff-9ba81f700906" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax_019e2ce2-b38a-74b5-835a-0ebc850f625d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019e2ce2-b38a-745a-b4ec-4b640d7171d2" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax_019e2ce2-b38a-74b5-835a-0ebc850f625d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_019e2ce2-b38a-7a0c-8780-d0cc3c703140" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019e2ce2-b38a-745a-b4ec-4b640d7171d2" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_019e2ce2-b38a-7a0c-8780-d0cc3c703140" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.conocophillips.com/role/ConsolidatedBalanceSheet" xlink:type="simple" xlink:href="cop-20260630.xsd#ConsolidatedBalanceSheet"/>
  <link:calculationLink xlink:role="http://www.conocophillips.com/role/ConsolidatedBalanceSheet" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_019e2ce2-b38a-78ec-b4a4-0fb256977378" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermInvestmentsAndReceivablesNet_019e2ce2-b38a-790b-8652-514b3fc707ff" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermInvestmentsAndReceivablesNet"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e2ce2-b38a-78ec-b4a4-0fb256977378" xlink:to="loc_us-gaap_LongTermInvestmentsAndReceivablesNet_019e2ce2-b38a-790b-8652-514b3fc707ff" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_019e2ce2-b38a-7280-828a-fdbe862aa47f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e2ce2-b38a-78ec-b4a4-0fb256977378" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_019e2ce2-b38a-7280-828a-fdbe862aa47f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_019e2ce2-b38a-7edf-ae56-a7e1c7481cc7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e2ce2-b38a-78ec-b4a4-0fb256977378" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_019e2ce2-b38a-7edf-ae56-a7e1c7481cc7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_019e2ce2-b38a-71f5-874e-3a81853a6ea1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e2ce2-b38a-78ec-b4a4-0fb256977378" xlink:to="loc_us-gaap_AssetsCurrent_019e2ce2-b38a-71f5-874e-3a81853a6ea1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019e2ce2-b38a-78a5-8259-78993b1aefe8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock_019e2ce2-b38a-7cdb-a661-202a03f2c65e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdditionalPaidInCapitalCommonStock"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019e2ce2-b38a-78a5-8259-78993b1aefe8" xlink:to="loc_us-gaap_AdditionalPaidInCapitalCommonStock_019e2ce2-b38a-7cdb-a661-202a03f2c65e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_019e2ce2-b38a-734c-ac58-512e4aae80d6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019e2ce2-b38a-78a5-8259-78993b1aefe8" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_019e2ce2-b38a-734c-ac58-512e4aae80d6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_019e2ce2-b38a-70d7-abcf-42834ff82c04" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockValue"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019e2ce2-b38a-78a5-8259-78993b1aefe8" xlink:to="loc_us-gaap_CommonStockValue_019e2ce2-b38a-70d7-abcf-42834ff82c04" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019e2ce2-b38a-719a-bc32-f2479bd9c50b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019e2ce2-b38a-78a5-8259-78993b1aefe8" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019e2ce2-b38a-719a-bc32-f2479bd9c50b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockValue_019e2ce2-b38a-755e-9fd1-d096e00812f7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockValue"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019e2ce2-b38a-78a5-8259-78993b1aefe8" xlink:to="loc_us-gaap_TreasuryStockValue_019e2ce2-b38a-755e-9fd1-d096e00812f7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019e2ce2-b38a-7903-ab43-ce7d81affc2d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Liabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_019e2ce2-b38a-7745-8a04-230205c47d23" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligations"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e2ce2-b38a-7903-ab43-ce7d81affc2d" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_019e2ce2-b38a-7745-8a04-230205c47d23" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_019e2ce2-b38a-766d-8d8c-4068aa6be94b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e2ce2-b38a-7903-ab43-ce7d81affc2d" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_019e2ce2-b38a-766d-8d8c-4068aa6be94b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCreditsAndOtherLiabilities_019e2ce2-b38a-742b-9983-71089beec346" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredCreditsAndOtherLiabilities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e2ce2-b38a-7903-ab43-ce7d81affc2d" xlink:to="loc_us-gaap_DeferredCreditsAndOtherLiabilities_019e2ce2-b38a-742b-9983-71089beec346" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_019e2ce2-b38a-77a9-af2a-cf21dc06a758" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e2ce2-b38a-7903-ab43-ce7d81affc2d" xlink:to="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_019e2ce2-b38a-77a9-af2a-cf21dc06a758" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_019e2ce2-b38a-7df5-a76e-0d1a0844886a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e2ce2-b38a-7903-ab43-ce7d81affc2d" xlink:to="loc_us-gaap_LiabilitiesCurrent_019e2ce2-b38a-7df5-a76e-0d1a0844886a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cop_AssetRetirementObligationsAndAccruedEnvironmentalCostNonCurrent_019e2ce2-b38a-708b-b799-d7660d6571a4" xlink:href="cop-20260630.xsd#cop_AssetRetirementObligationsAndAccruedEnvironmentalCostNonCurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e2ce2-b38a-7903-ab43-ce7d81affc2d" xlink:to="loc_cop_AssetRetirementObligationsAndAccruedEnvironmentalCostNonCurrent_019e2ce2-b38a-708b-b799-d7660d6571a4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_019e2ce2-b38a-73bc-98a7-87e0169c03ed" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019e2ce2-b38a-7754-a025-fd0d9387d365" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Liabilities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019e2ce2-b38a-73bc-98a7-87e0169c03ed" xlink:to="loc_us-gaap_Liabilities_019e2ce2-b38a-7754-a025-fd0d9387d365" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019e2ce2-b38a-7f17-b644-53b1a746c657" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019e2ce2-b38a-73bc-98a7-87e0169c03ed" xlink:to="loc_us-gaap_StockholdersEquity_019e2ce2-b38a-7f17-b644-53b1a746c657" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_019e2ce2-b38a-7b3c-9127-e0e9b3c54b95" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsAndNotesReceivableNet_019e2ce2-b38a-7751-9244-1d3f18d78328" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsAndNotesReceivableNet"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019e2ce2-b38a-7b3c-9127-e0e9b3c54b95" xlink:to="loc_us-gaap_AccountsAndNotesReceivableNet_019e2ce2-b38a-7751-9244-1d3f18d78328" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019e2ce2-b38a-7c84-8b67-8b9fd0aa0407" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019e2ce2-b38a-7b3c-9127-e0e9b3c54b95" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019e2ce2-b38a-7c84-8b67-8b9fd0aa0407" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_019e2ce2-b38a-7d54-bd97-ad97104b3d92" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryNet"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019e2ce2-b38a-7b3c-9127-e0e9b3c54b95" xlink:to="loc_us-gaap_InventoryNet_019e2ce2-b38a-7d54-bd97-ad97104b3d92" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermInvestments_019e2ce2-b38a-7c32-adbe-e215d826363f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermInvestments"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019e2ce2-b38a-7b3c-9127-e0e9b3c54b95" xlink:to="loc_us-gaap_ShortTermInvestments_019e2ce2-b38a-7c32-adbe-e215d826363f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_019e2ce2-b38a-7e1e-8eff-038f3e8dd705" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019e2ce2-b38a-7b3c-9127-e0e9b3c54b95" xlink:to="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_019e2ce2-b38a-7e1e-8eff-038f3e8dd705" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_019e2ce2-b38a-74b6-b189-efa5ed66cbd2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TaxesPayableCurrent_019e2ce2-b38a-7b4c-a7f5-f4d63b5c015d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TaxesPayableCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e2ce2-b38a-74b6-b189-efa5ed66cbd2" xlink:to="loc_us-gaap_TaxesPayableCurrent_019e2ce2-b38a-7b4c-a7f5-f4d63b5c015d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_019e2ce2-b38a-797d-85d7-ef69342f5539" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e2ce2-b38a-74b6-b189-efa5ed66cbd2" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_019e2ce2-b38a-797d-85d7-ef69342f5539" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtCurrent_019e2ce2-b38a-7696-9813-39e8e05f1cbb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e2ce2-b38a-74b6-b189-efa5ed66cbd2" xlink:to="loc_us-gaap_DebtCurrent_019e2ce2-b38a-7696-9813-39e8e05f1cbb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_019e2ce2-b38a-70ac-928d-5e9f5e08c607" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e2ce2-b38a-74b6-b189-efa5ed66cbd2" xlink:to="loc_us-gaap_AccountsPayableCurrent_019e2ce2-b38a-70ac-928d-5e9f5e08c607" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_019e2ce2-b38a-752c-b67b-9a05d5701c6c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherLiabilitiesCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e2ce2-b38a-74b6-b189-efa5ed66cbd2" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_019e2ce2-b38a-752c-b67b-9a05d5701c6c" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.conocophillips.com/role/ConsolidatedStatementofCashFlows" xlink:type="simple" xlink:href="cop-20260630.xsd#ConsolidatedStatementofCashFlows"/>
  <link:calculationLink xlink:role="http://www.conocophillips.com/role/ConsolidatedStatementofCashFlows" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e2ce2-b38a-7c6a-a8d5-e276afae033e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e2ce2-b38a-7cc2-91e1-d550d1aa4823" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e2ce2-b38a-7c6a-a8d5-e276afae033e" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e2ce2-b38a-7cc2-91e1-d550d1aa4823" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019e2ce2-b38a-710e-a8e3-5052f443c23c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e2ce2-b38a-7c6a-a8d5-e276afae033e" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019e2ce2-b38a-710e-a8e3-5052f443c23c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e2ce2-b38a-70b1-8537-79a1eb474219" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e2ce2-b38a-7c6a-a8d5-e276afae033e" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e2ce2-b38a-70b1-8537-79a1eb474219" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2ce2-b38a-7408-ab3c-b66372015c78" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e2ce2-b38a-7c6a-a8d5-e276afae033e" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2ce2-b38a-7408-ab3c-b66372015c78" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e2ce2-b38a-7d3c-a5cd-efe0239367ff" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfDebt_019e2ce2-b38a-7d17-9017-5434efa94fc5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RepaymentsOfDebt"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e2ce2-b38a-7d3c-a5cd-efe0239367ff" xlink:to="loc_us-gaap_RepaymentsOfDebt_019e2ce2-b38a-7d17-9017-5434efa94fc5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividendsCommonStock_019e2ce2-b38a-7081-9936-de5a455f2e2f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsOfDividendsCommonStock"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e2ce2-b38a-7d3c-a5cd-efe0239367ff" xlink:to="loc_us-gaap_PaymentsOfDividendsCommonStock_019e2ce2-b38a-7081-9936-de5a455f2e2f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_019e2ce2-b38b-74c0-9cc2-e7c2228a7ac5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e2ce2-b38a-7d3c-a5cd-efe0239367ff" xlink:to="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_019e2ce2-b38b-74c0-9cc2-e7c2228a7ac5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_019e2ce2-b38b-7e74-a114-73d88e54c2c4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e2ce2-b38a-7d3c-a5cd-efe0239367ff" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_019e2ce2-b38b-7e74-a114-73d88e54c2c4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_019e2ce2-b38b-7b83-9f03-679b49a8f24d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e2ce2-b38a-7d3c-a5cd-efe0239367ff" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_019e2ce2-b38b-7b83-9f03-679b49a8f24d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e2ce2-b38b-7eca-8dfa-52fa166b77d9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_019e2ce2-b38b-7509-8396-f345a2349b55" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e2ce2-b38b-7eca-8dfa-52fa166b77d9" xlink:to="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_019e2ce2-b38b-7509-8396-f345a2349b55" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForProceedsFromInvestments_019e2ce2-b38b-7a48-9a43-56ce3639fa12" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsForProceedsFromInvestments"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e2ce2-b38b-7eca-8dfa-52fa166b77d9" xlink:to="loc_us-gaap_PaymentsForProceedsFromInvestments_019e2ce2-b38b-7a48-9a43-56ce3639fa12" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfProductiveAssets_019e2ce2-b38b-74f8-b0e1-630ac78b9a69" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromSaleOfProductiveAssets"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e2ce2-b38b-7eca-8dfa-52fa166b77d9" xlink:to="loc_us-gaap_ProceedsFromSaleOfProductiveAssets_019e2ce2-b38b-74f8-b0e1-630ac78b9a69" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cop_IncreaseDecreaseInCapitalAccrual_019e2ce2-b38b-7762-80a6-9787776657fb" xlink:href="cop-20260630.xsd#cop_IncreaseDecreaseInCapitalAccrual"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e2ce2-b38b-7eca-8dfa-52fa166b77d9" xlink:to="loc_cop_IncreaseDecreaseInCapitalAccrual_019e2ce2-b38b-7762-80a6-9787776657fb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cop_PaymentToAcquireProductiveAssetsAndInvestments_019e2ce2-b38b-7429-94f2-8509dd11b354" xlink:href="cop-20260630.xsd#cop_PaymentToAcquireProductiveAssetsAndInvestments"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e2ce2-b38b-7eca-8dfa-52fa166b77d9" xlink:to="loc_cop_PaymentToAcquireProductiveAssetsAndInvestments_019e2ce2-b38b-7429-94f2-8509dd11b354" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2ce2-b38b-7c13-8c53-62eaac920ea9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_019e2ce2-b38b-78b0-9c12-bd2b63baa7bd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInInventories"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2ce2-b38b-7c13-8c53-62eaac920ea9" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_019e2ce2-b38b-78b0-9c12-bd2b63baa7bd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_019e2ce2-b38b-7eaf-85c6-9442103c4a01" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2ce2-b38b-7c13-8c53-62eaac920ea9" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_019e2ce2-b38b-7eaf-85c6-9442103c4a01" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_019e2ce2-b38b-71be-bbfc-041b5a57876a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2ce2-b38b-7c13-8c53-62eaac920ea9" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_019e2ce2-b38b-71be-bbfc-041b5a57876a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetImpairmentCharges_019e2ce2-b38b-7c27-95e8-581df37478d1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetImpairmentCharges"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2ce2-b38b-7c13-8c53-62eaac920ea9" xlink:to="loc_us-gaap_AssetImpairmentCharges_019e2ce2-b38b-7c27-95e8-581df37478d1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_019e2ce2-b38b-7712-a009-0d79ba88b227" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2ce2-b38b-7c13-8c53-62eaac920ea9" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_019e2ce2-b38b-7712-a009-0d79ba88b227" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions_019e2ce2-b38b-7a4e-93e0-e4224332e901" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2ce2-b38b-7c13-8c53-62eaac920ea9" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions_019e2ce2-b38b-7a4e-93e0-e4224332e901" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccretionExpenseIncludingAssetRetirementObligations_019e2ce2-b38b-78ba-8bd5-d41622af2c1c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccretionExpenseIncludingAssetRetirementObligations"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2ce2-b38b-7c13-8c53-62eaac920ea9" xlink:to="loc_us-gaap_AccretionExpenseIncludingAssetRetirementObligations_019e2ce2-b38b-78ba-8bd5-d41622af2c1c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInReceivables_019e2ce2-b38b-7801-864e-1998016ac2c5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInReceivables"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2ce2-b38b-7c13-8c53-62eaac920ea9" xlink:to="loc_us-gaap_IncreaseDecreaseInReceivables_019e2ce2-b38b-7801-864e-1998016ac2c5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cop_ExplorationAbandonmentAndImpairmentCashPayments_019e2ce2-b38b-74ff-84bc-75b9c6782a14" xlink:href="cop-20260630.xsd#cop_ExplorationAbandonmentAndImpairmentCashPayments"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2ce2-b38b-7c13-8c53-62eaac920ea9" xlink:to="loc_cop_ExplorationAbandonmentAndImpairmentCashPayments_019e2ce2-b38b-74ff-84bc-75b9c6782a14" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_019e2ce2-b38b-79ec-99c3-4b929678741e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainLossOnSaleOfPropertyPlantEquipment"/>
    <link:calculationArc order="10" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2ce2-b38b-7c13-8c53-62eaac920ea9" xlink:to="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_019e2ce2-b38b-79ec-99c3-4b929678741e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_019e2ce2-b38b-7a95-8108-09be6a68f94b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets"/>
    <link:calculationArc order="11" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2ce2-b38b-7c13-8c53-62eaac920ea9" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_019e2ce2-b38b-7a95-8108-09be6a68f94b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherOperatingActivitiesCashFlowStatement_019e2ce2-b38b-7dce-a4a2-23d074f21799" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherOperatingActivitiesCashFlowStatement"/>
    <link:calculationArc order="12" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2ce2-b38b-7c13-8c53-62eaac920ea9" xlink:to="loc_us-gaap_OtherOperatingActivitiesCashFlowStatement_019e2ce2-b38b-7dce-a4a2-23d074f21799" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_019e2ce2-b38b-75c8-afcb-a2fc42242b65" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInAccountsPayable"/>
    <link:calculationArc order="13" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2ce2-b38b-7c13-8c53-62eaac920ea9" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_019e2ce2-b38b-75c8-afcb-a2fc42242b65" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019e2ce2-b38b-7782-9f50-6b0c118b4c85" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="14" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2ce2-b38b-7c13-8c53-62eaac920ea9" xlink:to="loc_us-gaap_ProfitLoss_019e2ce2-b38b-7782-9f50-6b0c118b4c85" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.conocophillips.com/role/InventoriesScheduleofInventoriesDetails" xlink:type="simple" xlink:href="cop-20260630.xsd#InventoriesScheduleofInventoriesDetails"/>
  <link:calculationLink xlink:role="http://www.conocophillips.com/role/InventoriesScheduleofInventoriesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_019e2ce2-b38b-7ffa-ad04-beeb930dbb68" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryRawMaterialsAndSupplies_019e2ce2-b38b-76df-817e-f87690e7ed80" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryRawMaterialsAndSupplies"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_019e2ce2-b38b-7ffa-ad04-beeb930dbb68" xlink:to="loc_us-gaap_InventoryRawMaterialsAndSupplies_019e2ce2-b38b-76df-817e-f87690e7ed80" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryCrudeOilProductsAndMerchandise_019e2ce2-b38b-72a3-9522-d436ac8be335" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryCrudeOilProductsAndMerchandise"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_019e2ce2-b38b-7ffa-ad04-beeb930dbb68" xlink:to="loc_us-gaap_InventoryCrudeOilProductsAndMerchandise_019e2ce2-b38b-72a3-9522-d436ac8be335" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.conocophillips.com/role/FairValueMeasurementScheduleofFairValueHierarchyforGrossFinancialAssetsandLiabilitiesDetails" xlink:type="simple" xlink:href="cop-20260630.xsd#FairValueMeasurementScheduleofFairValueHierarchyforGrossFinancialAssetsandLiabilitiesDetails"/>
  <link:calculationLink xlink:role="http://www.conocophillips.com/role/FairValueMeasurementScheduleofFairValueHierarchyforGrossFinancialAssetsandLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_019e2ce2-b38b-7b6d-acf8-d8892c2d9985" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsFairValueDisclosure"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_019e2ce2-b38b-792a-94a2-fa1181fe46b4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_019e2ce2-b38b-7b6d-acf8-d8892c2d9985" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_019e2ce2-b38b-792a-94a2-fa1181fe46b4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement_019e2ce2-b38b-79e5-b260-6a160fef4706" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_019e2ce2-b38b-7b6d-acf8-d8892c2d9985" xlink:to="loc_us-gaap_DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement_019e2ce2-b38b-79e5-b260-6a160fef4706" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesFairValueDisclosure_019e2ce2-b38b-7c77-99df-37d33c1c70bb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesFairValueDisclosure"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue_019e2ce2-b38b-7153-88e7-3d4c1996bc52" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesFairValueDisclosure_019e2ce2-b38b-7c77-99df-37d33c1c70bb" xlink:to="loc_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue_019e2ce2-b38b-7153-88e7-3d4c1996bc52" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.conocophillips.com/role/FairValueMeasurementScheduleofCommodityDerivativeBalancesSubjecttoRightofSetoffDetails" xlink:type="simple" xlink:href="cop-20260630.xsd#FairValueMeasurementScheduleofCommodityDerivativeBalancesSubjecttoRightofSetoffDetails"/>
  <link:calculationLink xlink:role="http://www.conocophillips.com/role/FairValueMeasurementScheduleofCommodityDerivativeBalancesSubjecttoRightofSetoffDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement_019e2ce2-b38b-7e7e-92f7-77c3bc6bafe0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeLiability_019e2ce2-b38b-7048-921a-5e1379a3d8a1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeFairValueOfDerivativeLiability"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement_019e2ce2-b38b-7e7e-92f7-77c3bc6bafe0" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeLiability_019e2ce2-b38b-7048-921a-5e1379a3d8a1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilityNotSubjectToMasterNettingArrangement_019e2ce2-b38b-768b-9c6e-93fd16603f1a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeLiabilityNotSubjectToMasterNettingArrangement"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement_019e2ce2-b38b-7e7e-92f7-77c3bc6bafe0" xlink:to="loc_us-gaap_DerivativeLiabilityNotSubjectToMasterNettingArrangement_019e2ce2-b38b-768b-9c6e-93fd16603f1a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement_019e2ce2-b38b-74cf-8e0b-d7782416ceba" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssetNotSubjectToMasterNettingArrangement_019e2ce2-b38b-7458-8832-fff857507879" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeAssetNotSubjectToMasterNettingArrangement"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement_019e2ce2-b38b-74cf-8e0b-d7782416ceba" xlink:to="loc_us-gaap_DerivativeAssetNotSubjectToMasterNettingArrangement_019e2ce2-b38b-7458-8832-fff857507879" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_019e2ce2-b38b-736f-b969-e5ffff7c745e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeFairValueOfDerivativeAsset"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement_019e2ce2-b38b-74cf-8e0b-d7782416ceba" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_019e2ce2-b38b-736f-b969-e5ffff7c745e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral_019e2ce2-b38b-7352-89f0-51b24954925d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_019e2ce2-b38b-72eb-93f0-7596e0b78dd0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeFairValueOfDerivativeAsset"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral_019e2ce2-b38b-7352-89f0-51b24954925d" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_019e2ce2-b38b-72eb-93f0-7596e0b78dd0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssetFairValueGrossLiability_019e2ce2-b38b-7b8a-99f0-cd13bda4b5dd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeAssetFairValueGrossLiability"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral_019e2ce2-b38b-7352-89f0-51b24954925d" xlink:to="loc_us-gaap_DerivativeAssetFairValueGrossLiability_019e2ce2-b38b-7b8a-99f0-cd13bda4b5dd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral_019e2ce2-b38b-71b6-ba31-a64afcc0142c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeLiability_019e2ce2-b38b-7c30-93bc-4b2ec3a12cef" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeFairValueOfDerivativeLiability"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral_019e2ce2-b38b-71b6-ba31-a64afcc0142c" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeLiability_019e2ce2-b38b-7c30-93bc-4b2ec3a12cef" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilityFairValueGrossAsset_019e2ce2-b38b-731b-83bb-01ebbe890800" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeLiabilityFairValueGrossAsset"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral_019e2ce2-b38b-71b6-ba31-a64afcc0142c" xlink:to="loc_us-gaap_DerivativeLiabilityFairValueGrossAsset_019e2ce2-b38b-731b-83bb-01ebbe890800" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilityAfterOffsetSubjectToMasterNettingArrangement_019e2ce2-b38b-7ffb-b762-c89bddc0bde0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeLiabilityAfterOffsetSubjectToMasterNettingArrangement"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral_019e2ce2-b38b-76a1-9098-ca1c8ade5730" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeLiabilityAfterOffsetSubjectToMasterNettingArrangement_019e2ce2-b38b-7ffb-b762-c89bddc0bde0" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral_019e2ce2-b38b-76a1-9098-ca1c8ade5730" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilityCollateralRightToReclaimCashOffset_019e2ce2-b38b-7abe-b291-4fd7f36fd9cd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeLiabilityCollateralRightToReclaimCashOffset"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeLiabilityAfterOffsetSubjectToMasterNettingArrangement_019e2ce2-b38b-7ffb-b762-c89bddc0bde0" xlink:to="loc_us-gaap_DerivativeLiabilityCollateralRightToReclaimCashOffset_019e2ce2-b38b-7abe-b291-4fd7f36fd9cd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssetAfterOffsetSubjectToMasterNettingArrangement_019e2ce2-b38b-7bf2-9f9d-0529ea2a20a9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeAssetAfterOffsetSubjectToMasterNettingArrangement"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssetCollateralObligationToReturnCashOffset_019e2ce2-b38b-7450-92fb-d3146c1328a7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeAssetCollateralObligationToReturnCashOffset"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeAssetAfterOffsetSubjectToMasterNettingArrangement_019e2ce2-b38b-7bf2-9f9d-0529ea2a20a9" xlink:to="loc_us-gaap_DerivativeAssetCollateralObligationToReturnCashOffset_019e2ce2-b38b-7450-92fb-d3146c1328a7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral_019e2ce2-b38b-7a41-964f-797d3406d35d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeAssetAfterOffsetSubjectToMasterNettingArrangement_019e2ce2-b38b-7bf2-9f9d-0529ea2a20a9" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral_019e2ce2-b38b-7a41-964f-797d3406d35d" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.conocophillips.com/role/CashFlowInformationScheduleofCashFlowInformationDetails" xlink:type="simple" xlink:href="cop-20260630.xsd#CashFlowInformationScheduleofCashFlowInformationDetails"/>
  <link:calculationLink xlink:role="http://www.conocophillips.com/role/CashFlowInformationScheduleofCashFlowInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForProceedsFromInvestments_019e2ce2-b38b-7d23-993f-092b8f303217" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsForProceedsFromInvestments"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireLongtermInvestments_019e2ce2-b38b-78d1-a742-522f655207d9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquireLongtermInvestments"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PaymentsForProceedsFromInvestments_019e2ce2-b38b-7d23-993f-092b8f303217" xlink:to="loc_us-gaap_PaymentsToAcquireLongtermInvestments_019e2ce2-b38b-78d1-a742-522f655207d9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireShortTermInvestments_019e2ce2-b38b-7fa3-b1e5-a8bcb787e803" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquireShortTermInvestments"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PaymentsForProceedsFromInvestments_019e2ce2-b38b-7d23-993f-092b8f303217" xlink:to="loc_us-gaap_PaymentsToAcquireShortTermInvestments_019e2ce2-b38b-7fa3-b1e5-a8bcb787e803" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfShortTermInvestments_019e2ce2-b38b-7b98-886f-fc4f229b172c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromSaleOfShortTermInvestments"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PaymentsForProceedsFromInvestments_019e2ce2-b38b-7d23-993f-092b8f303217" xlink:to="loc_us-gaap_ProceedsFromSaleOfShortTermInvestments_019e2ce2-b38b-7b98-886f-fc4f229b172c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfLongtermInvestments_019e2ce2-b38b-7a25-b5ae-e7c9db46bfa8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromSaleOfLongtermInvestments"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PaymentsForProceedsFromInvestments_019e2ce2-b38b-7d23-993f-092b8f303217" xlink:to="loc_us-gaap_ProceedsFromSaleOfLongtermInvestments_019e2ce2-b38b-7a25-b5ae-e7c9db46bfa8" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.conocophillips.com/role/EmployeeBenefitPlansScheduleofComponentsofNetPeriodicBenefitCostDetails" xlink:type="simple" xlink:href="cop-20260630.xsd#EmployeeBenefitPlansScheduleofComponentsofNetPeriodicBenefitCostDetails"/>
  <link:calculationLink xlink:role="http://www.conocophillips.com/role/EmployeeBenefitPlansScheduleofComponentsofNetPeriodicBenefitCostDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_019e2ce2-b38b-7b75-90d3-15206e1a7bbb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanServiceCost_019e2ce2-b38b-76f1-9b18-c97654705221" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanServiceCost"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_019e2ce2-b38b-7b75-90d3-15206e1a7bbb" xlink:to="loc_us-gaap_DefinedBenefitPlanServiceCost_019e2ce2-b38b-76f1-9b18-c97654705221" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanInterestCost_019e2ce2-b38b-7d67-aafe-465db7533a45" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanInterestCost"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_019e2ce2-b38b-7b75-90d3-15206e1a7bbb" xlink:to="loc_us-gaap_DefinedBenefitPlanInterestCost_019e2ce2-b38b-7d67-aafe-465db7533a45" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_019e2ce2-b38b-77c0-9a57-a865027803b4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_019e2ce2-b38b-7b75-90d3-15206e1a7bbb" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_019e2ce2-b38b-77c0-9a57-a865027803b4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_019e2ce2-b38b-7bc2-971e-cba6de5a8f09" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_019e2ce2-b38b-7b75-90d3-15206e1a7bbb" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_019e2ce2-b38b-7bc2-971e-cba6de5a8f09" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_019e2ce2-b38b-7e75-aea1-4e6949ef7d94" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_019e2ce2-b38b-7b75-90d3-15206e1a7bbb" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_019e2ce2-b38b-7e75-aea1-4e6949ef7d94" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1_019e2ce2-b38b-781b-bcfe-8ef2400dd1ed" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_019e2ce2-b38b-7b75-90d3-15206e1a7bbb" xlink:to="loc_us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1_019e2ce2-b38b-781b-bcfe-8ef2400dd1ed" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.conocophillips.com/role/SalesandOtherOperatingRevenuesRevenueDetails" xlink:type="simple" xlink:href="cop-20260630.xsd#SalesandOtherOperatingRevenuesRevenueDetails"/>
  <link:calculationLink xlink:role="http://www.conocophillips.com/role/SalesandOtherOperatingRevenuesRevenueDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_019e2ce2-b38b-7a25-a6b5-70289b2c2511" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Revenues"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueNotFromContractWithCustomer_019e2ce2-b38b-77d3-bb50-b67e9e5cff79" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueNotFromContractWithCustomer"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_019e2ce2-b38b-7a25-a6b5-70289b2c2511" xlink:to="loc_us-gaap_RevenueNotFromContractWithCustomer_019e2ce2-b38b-77d3-bb50-b67e9e5cff79" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019e2ce2-b38b-7827-8ca8-aac459a83b17" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_019e2ce2-b38b-7a25-a6b5-70289b2c2511" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019e2ce2-b38b-7827-8ca8-aac459a83b17" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.conocophillips.com/role/EarningsPerShareEarningsPerShareBasicandDilutedDetails" xlink:type="simple" xlink:href="cop-20260630.xsd#EarningsPerShareEarningsPerShareBasicandDilutedDetails"/>
  <link:calculationLink xlink:role="http://www.conocophillips.com/role/EarningsPerShareEarningsPerShareBasicandDilutedDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_019e2ce2-b38b-72d7-8fed-7aececdc02d6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019e2ce2-b38b-7b23-aa13-ace4e5239899" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_019e2ce2-b38b-72d7-8fed-7aececdc02d6" xlink:to="loc_us-gaap_NetIncomeLoss_019e2ce2-b38b-7b23-aa13-ace4e5239899" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic_019e2ce2-b38b-760b-ad45-e508cc38cbc9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_019e2ce2-b38b-72d7-8fed-7aececdc02d6" xlink:to="loc_us-gaap_ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic_019e2ce2-b38b-760b-ad45-e508cc38cbc9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019e2ce2-b38b-706d-a6ab-787a30148440" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_019e2ce2-b38b-7407-81ce-9e5f67ba8975" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019e2ce2-b38b-706d-a6ab-787a30148440" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_019e2ce2-b38b-7407-81ce-9e5f67ba8975" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019e2ce2-b38b-743b-9103-18dbbef2a063" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019e2ce2-b38b-706d-a6ab-787a30148440" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019e2ce2-b38b-743b-9103-18dbbef2a063" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.conocophillips.com/role/SegmentDisclosuresandRelatedInformationSummaryofSegmentLevelNetIncomeLossDetails" xlink:type="simple" xlink:href="cop-20260630.xsd#SegmentDisclosuresandRelatedInformationSummaryofSegmentLevelNetIncomeLossDetails"/>
  <link:calculationLink xlink:role="http://www.conocophillips.com/role/SegmentDisclosuresandRelatedInformationSummaryofSegmentLevelNetIncomeLossDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingOtherItemAmount_019e2ce2-b38b-7154-a617-f3876e16b5c5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentReportingOtherItemAmount"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIncomeInterest_019e2ce2-b38b-7cba-9986-0addb2698b15" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIncomeInterest"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SegmentReportingOtherItemAmount_019e2ce2-b38b-7154-a617-f3876e16b5c5" xlink:to="loc_us-gaap_InvestmentIncomeInterest_019e2ce2-b38b-7cba-9986-0addb2698b15" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestAndDebtExpense_019e2ce2-b38b-7443-b9d2-6e6219c68bfd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestAndDebtExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SegmentReportingOtherItemAmount_019e2ce2-b38b-7154-a617-f3876e16b5c5" xlink:to="loc_us-gaap_InterestAndDebtExpense_019e2ce2-b38b-7443-b9d2-6e6219c68bfd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_019e2ce2-b38b-7a0e-85bf-8f071574a403" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromEquityMethodInvestments"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SegmentReportingOtherItemAmount_019e2ce2-b38b-7154-a617-f3876e16b5c5" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_019e2ce2-b38b-7a0e-85bf-8f071574a403" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cop_OtherSegmentExpense_019e2ce2-b38b-7dec-bfdc-88b15374e37c" xlink:href="cop-20260630.xsd#cop_OtherSegmentExpense"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SegmentReportingOtherItemAmount_019e2ce2-b38b-7154-a617-f3876e16b5c5" xlink:to="loc_cop_OtherSegmentExpense_019e2ce2-b38b-7dec-bfdc-88b15374e37c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cop_SignificantSegmentExpenses_019e2ce2-b38b-7485-ad79-b8f3f56af0f2" xlink:href="cop-20260630.xsd#cop_SignificantSegmentExpenses"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingCostsAndExpenses_019e2ce2-b38b-7f68-9167-19648053c098" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingCostsAndExpenses"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_cop_SignificantSegmentExpenses_019e2ce2-b38b-7485-ad79-b8f3f56af0f2" xlink:to="loc_us-gaap_OperatingCostsAndExpenses_019e2ce2-b38b-7f68-9167-19648053c098" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_019e2ce2-b38b-7109-ac40-79f5da0cda02" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_cop_SignificantSegmentExpenses_019e2ce2-b38b-7485-ad79-b8f3f56af0f2" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_019e2ce2-b38b-7109-ac40-79f5da0cda02" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_019e2ce2-b38b-78b4-a6fd-5e926ae9a022" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_cop_SignificantSegmentExpenses_019e2ce2-b38b-7485-ad79-b8f3f56af0f2" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_019e2ce2-b38b-78b4-a6fd-5e926ae9a022" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
