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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019c9089-9fd7-7dea-a905-41f9bcbc7582,g:6b899cda-933e-48f6-88c9-235691985fb3-->
<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" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <link:roleRef roleURI="http://www.exxonmobil.com/role/DocumentandEntityInformationDocument" xlink:type="simple" xlink:href="xom-20260408.xsd#DocumentandEntityInformationDocument"/>
  <link:definitionLink xlink:role="http://www.exxonmobil.com/role/DocumentandEntityInformationDocument" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityInformationLineItems_019c9089-9fd7-7ceb-a1d8-3f7a3a0127a0" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntitiesTable_019c9089-9fd7-77d5-b1aa-e17da05d1d59" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntitiesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_dei_EntityInformationLineItems_019c9089-9fd7-7ceb-a1d8-3f7a3a0127a0" xlink:to="loc_dei_EntitiesTable_019c9089-9fd7-77d5-b1aa-e17da05d1d59" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019c9089-9fd7-7944-99a5-e89fb8f8715e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_EntitiesTable_019c9089-9fd7-77d5-b1aa-e17da05d1d59" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019c9089-9fd7-7944-99a5-e89fb8f8715e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019c9089-9fd7-7944-99a5-e89fb8f8715e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019c9089-9fd7-7944-99a5-e89fb8f8715e" xlink:to="loc_us-gaap_ClassOfStockDomain_019c9089-9fd7-7944-99a5-e89fb8f8715e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019c9089-9fd7-7497-b64e-f1d87feb150e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019c9089-9fd7-7944-99a5-e89fb8f8715e" xlink:to="loc_us-gaap_ClassOfStockDomain_019c9089-9fd7-7497-b64e-f1d87feb150e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_019c9089-9fd7-7247-8755-765c3eb4a0b5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019c9089-9fd7-7497-b64e-f1d87feb150e" xlink:to="loc_us-gaap_CommonStockMember_019c9089-9fd7-7247-8755-765c3eb4a0b5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_xom_ZeroPointFiveTwoFourPercentNotesDue2028Member_019c9089-9fd7-7ea1-9928-eaf3e888f575" xlink:href="xom-20260408.xsd#xom_ZeroPointFiveTwoFourPercentNotesDue2028Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019c9089-9fd7-7497-b64e-f1d87feb150e" xlink:to="loc_xom_ZeroPointFiveTwoFourPercentNotesDue2028Member_019c9089-9fd7-7ea1-9928-eaf3e888f575" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_xom_ZeroPointFiveTwoFourPercentNotesDue2032Member_019c9089-9fd7-7a8f-983f-f54fd944af4d" xlink:href="xom-20260408.xsd#xom_ZeroPointFiveTwoFourPercentNotesDue2032Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019c9089-9fd7-7497-b64e-f1d87feb150e" xlink:to="loc_xom_ZeroPointFiveTwoFourPercentNotesDue2032Member_019c9089-9fd7-7a8f-983f-f54fd944af4d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_xom_OnePointFourZeroEightPercentNotesDue2039Member_019c9089-9fd7-72d5-8e0c-3858fa4d110b" xlink:href="xom-20260408.xsd#xom_OnePointFourZeroEightPercentNotesDue2039Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019c9089-9fd7-7497-b64e-f1d87feb150e" xlink:to="loc_xom_OnePointFourZeroEightPercentNotesDue2039Member_019c9089-9fd7-72d5-8e0c-3858fa4d110b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_019c9089-9fd7-7d76-a329-57642dfdfaba" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentType"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019c9089-9fd7-7ceb-a1d8-3f7a3a0127a0" xlink:to="loc_dei_DocumentType_019c9089-9fd7-7d76-a329-57642dfdfaba" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_019c9089-9fd7-7ae5-9605-735bb03e338b" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentPeriodEndDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019c9089-9fd7-7ceb-a1d8-3f7a3a0127a0" xlink:to="loc_dei_DocumentPeriodEndDate_019c9089-9fd7-7ae5-9605-735bb03e338b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_019c9089-9fd7-71d5-93c2-8d6cc91b3f2a" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityRegistrantName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019c9089-9fd7-7ceb-a1d8-3f7a3a0127a0" xlink:to="loc_dei_EntityRegistrantName_019c9089-9fd7-71d5-93c2-8d6cc91b3f2a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_019c9089-9fd7-7f87-8e3a-4d471d92804c" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019c9089-9fd7-7ceb-a1d8-3f7a3a0127a0" xlink:to="loc_dei_EntityIncorporationStateCountryCode_019c9089-9fd7-7f87-8e3a-4d471d92804c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_019c9089-9fd7-7fd9-ac34-2abf4b7f92e1" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityFileNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019c9089-9fd7-7ceb-a1d8-3f7a3a0127a0" xlink:to="loc_dei_EntityFileNumber_019c9089-9fd7-7fd9-ac34-2abf4b7f92e1" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_019c9089-9fd7-7e52-b7c9-37e0e8a4c2c1" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019c9089-9fd7-7ceb-a1d8-3f7a3a0127a0" xlink:to="loc_dei_EntityTaxIdentificationNumber_019c9089-9fd7-7e52-b7c9-37e0e8a4c2c1" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_019c9089-9fd7-75d0-9950-307dd60b5d76" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressAddressLine1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019c9089-9fd7-7ceb-a1d8-3f7a3a0127a0" xlink:to="loc_dei_EntityAddressAddressLine1_019c9089-9fd7-75d0-9950-307dd60b5d76" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_019c9089-9fd7-7bba-abb3-c9b3c7ed9bdd" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressCityOrTown"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019c9089-9fd7-7ceb-a1d8-3f7a3a0127a0" xlink:to="loc_dei_EntityAddressCityOrTown_019c9089-9fd7-7bba-abb3-c9b3c7ed9bdd" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_019c9089-9fd7-7a8c-8b5e-858690e766a9" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressStateOrProvince"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019c9089-9fd7-7ceb-a1d8-3f7a3a0127a0" xlink:to="loc_dei_EntityAddressStateOrProvince_019c9089-9fd7-7a8c-8b5e-858690e766a9" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_019c9089-9fd7-725c-994f-f05af5059cfa" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressPostalZipCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019c9089-9fd7-7ceb-a1d8-3f7a3a0127a0" xlink:to="loc_dei_EntityAddressPostalZipCode_019c9089-9fd7-725c-994f-f05af5059cfa" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_019c9089-9fd7-70bf-800c-274b36cddb68" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CityAreaCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019c9089-9fd7-7ceb-a1d8-3f7a3a0127a0" xlink:to="loc_dei_CityAreaCode_019c9089-9fd7-70bf-800c-274b36cddb68" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_019c9089-9fd7-7293-8bda-4dce2ed270af" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LocalPhoneNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019c9089-9fd7-7ceb-a1d8-3f7a3a0127a0" xlink:to="loc_dei_LocalPhoneNumber_019c9089-9fd7-7293-8bda-4dce2ed270af" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_019c9089-9fd7-74c1-a86d-6d894d51f39a" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_Security12bTitle"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019c9089-9fd7-7ceb-a1d8-3f7a3a0127a0" xlink:to="loc_dei_Security12bTitle_019c9089-9fd7-74c1-a86d-6d894d51f39a" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_019c9089-9fd7-749a-81b5-b42097319927" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_TradingSymbol"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019c9089-9fd7-7ceb-a1d8-3f7a3a0127a0" xlink:to="loc_dei_TradingSymbol_019c9089-9fd7-749a-81b5-b42097319927" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_019c9089-9fd7-796b-98f0-ae5e258abb9b" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_SecurityExchangeName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019c9089-9fd7-7ceb-a1d8-3f7a3a0127a0" xlink:to="loc_dei_SecurityExchangeName_019c9089-9fd7-796b-98f0-ae5e258abb9b" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_019c9089-9fd7-7a3e-84b1-5902afe1ae93" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_WrittenCommunications"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019c9089-9fd7-7ceb-a1d8-3f7a3a0127a0" xlink:to="loc_dei_WrittenCommunications_019c9089-9fd7-7a3e-84b1-5902afe1ae93" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_019c9089-9fd7-7807-83fe-de664cf4619e" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_SolicitingMaterial"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019c9089-9fd7-7ceb-a1d8-3f7a3a0127a0" xlink:to="loc_dei_SolicitingMaterial_019c9089-9fd7-7807-83fe-de664cf4619e" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_019c9089-9fd7-76da-a190-ee671fe66d41" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_PreCommencementTenderOffer"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019c9089-9fd7-7ceb-a1d8-3f7a3a0127a0" xlink:to="loc_dei_PreCommencementTenderOffer_019c9089-9fd7-76da-a190-ee671fe66d41" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_019c9089-9fd7-777a-81e7-13820be3144b" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019c9089-9fd7-7ceb-a1d8-3f7a3a0127a0" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_019c9089-9fd7-777a-81e7-13820be3144b" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_019c9089-9fd7-7d84-9823-056779da5d4c" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019c9089-9fd7-7ceb-a1d8-3f7a3a0127a0" xlink:to="loc_dei_EntityEmergingGrowthCompany_019c9089-9fd7-7d84-9823-056779da5d4c" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_019c9089-9fd7-7e08-bbf3-9d9ba70bb7ba" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCentralIndexKey"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019c9089-9fd7-7ceb-a1d8-3f7a3a0127a0" xlink:to="loc_dei_EntityCentralIndexKey_019c9089-9fd7-7e08-bbf3-9d9ba70bb7ba" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_019c9089-9fd7-7795-a42f-55c07fa3b452" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AmendmentFlag"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019c9089-9fd7-7ceb-a1d8-3f7a3a0127a0" xlink:to="loc_dei_AmendmentFlag_019c9089-9fd7-7795-a42f-55c07fa3b452" xlink:type="arc" order="21"/>
  </link:definitionLink>
</link:linkbase>
