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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:01a05ed3-8e70-7930-bc73-c2e0952fc0d2,g:b1a65138-69c0-4d63-8009-2e466a30e40b-->
<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:roleRef roleURI="http://www.div.energy/role/Cover" xlink:type="simple" xlink:href="dec-20260902.xsd#Cover"/>
  <link:presentationLink xlink:role="http://www.div.energy/role/Cover" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract_01a05ed3-90a5-73ed-93e6-f74aa4ec660c" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CoverAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_01a05ed3-90a5-7a8a-bbc6-bc40330c6afd" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentType"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a05ed3-90a5-73ed-93e6-f74aa4ec660c" xlink:to="loc_dei_DocumentType_01a05ed3-90a5-7a8a-bbc6-bc40330c6afd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_01a05ed3-90a5-7bd2-a6c9-b476cac80e1f" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentPeriodEndDate"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a05ed3-90a5-73ed-93e6-f74aa4ec660c" xlink:to="loc_dei_DocumentPeriodEndDate_01a05ed3-90a5-7bd2-a6c9-b476cac80e1f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_01a05ed3-90a5-7957-9300-0899fa2bb8be" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityRegistrantName"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a05ed3-90a5-73ed-93e6-f74aa4ec660c" xlink:to="loc_dei_EntityRegistrantName_01a05ed3-90a5-7957-9300-0899fa2bb8be" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_01a05ed3-90a5-737f-9cf8-4b1d58e47073" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a05ed3-90a5-73ed-93e6-f74aa4ec660c" xlink:to="loc_dei_EntityIncorporationStateCountryCode_01a05ed3-90a5-737f-9cf8-4b1d58e47073" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_01a05ed3-90a5-77a8-936f-9b2c27a33815" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityFileNumber"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a05ed3-90a5-73ed-93e6-f74aa4ec660c" xlink:to="loc_dei_EntityFileNumber_01a05ed3-90a5-77a8-936f-9b2c27a33815" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_01a05ed3-90a5-74cd-b1a4-c7ae4f7e477b" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a05ed3-90a5-73ed-93e6-f74aa4ec660c" xlink:to="loc_dei_EntityTaxIdentificationNumber_01a05ed3-90a5-74cd-b1a4-c7ae4f7e477b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_01a05ed3-90a5-7390-94e5-19d70a92395a" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressAddressLine1"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a05ed3-90a5-73ed-93e6-f74aa4ec660c" xlink:to="loc_dei_EntityAddressAddressLine1_01a05ed3-90a5-7390-94e5-19d70a92395a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_01a05ed3-90a5-749f-9bba-58304daefd45" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressCityOrTown"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a05ed3-90a5-73ed-93e6-f74aa4ec660c" xlink:to="loc_dei_EntityAddressCityOrTown_01a05ed3-90a5-749f-9bba-58304daefd45" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_01a05ed3-90a5-7729-97c9-df0b8cf8b072" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressStateOrProvince"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a05ed3-90a5-73ed-93e6-f74aa4ec660c" xlink:to="loc_dei_EntityAddressStateOrProvince_01a05ed3-90a5-7729-97c9-df0b8cf8b072" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_01a05ed3-90a5-75f5-a5fe-65647d21192d" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressPostalZipCode"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a05ed3-90a5-73ed-93e6-f74aa4ec660c" xlink:to="loc_dei_EntityAddressPostalZipCode_01a05ed3-90a5-75f5-a5fe-65647d21192d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_01a05ed3-90a5-72a2-858b-f8f32ee4e36f" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CityAreaCode"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a05ed3-90a5-73ed-93e6-f74aa4ec660c" xlink:to="loc_dei_CityAreaCode_01a05ed3-90a5-72a2-858b-f8f32ee4e36f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_01a05ed3-90a5-7e26-a22e-0e83220bf0da" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LocalPhoneNumber"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a05ed3-90a5-73ed-93e6-f74aa4ec660c" xlink:to="loc_dei_LocalPhoneNumber_01a05ed3-90a5-7e26-a22e-0e83220bf0da" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_01a05ed3-90a5-7b67-ae94-da48cef9f85e" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_WrittenCommunications"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a05ed3-90a5-73ed-93e6-f74aa4ec660c" xlink:to="loc_dei_WrittenCommunications_01a05ed3-90a5-7b67-ae94-da48cef9f85e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_01a05ed3-90a5-78fd-b256-caa3f18a54fe" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_SolicitingMaterial"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a05ed3-90a5-73ed-93e6-f74aa4ec660c" xlink:to="loc_dei_SolicitingMaterial_01a05ed3-90a5-78fd-b256-caa3f18a54fe" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_01a05ed3-90a5-7fa8-85d5-7aef12696533" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_PreCommencementTenderOffer"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a05ed3-90a5-73ed-93e6-f74aa4ec660c" xlink:to="loc_dei_PreCommencementTenderOffer_01a05ed3-90a5-7fa8-85d5-7aef12696533" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_01a05ed3-90a5-7262-94c2-e047c8d11635" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a05ed3-90a5-73ed-93e6-f74aa4ec660c" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_01a05ed3-90a5-7262-94c2-e047c8d11635" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_01a05ed3-90a5-7105-9141-6b06a8d50b2c" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_Security12bTitle"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a05ed3-90a5-73ed-93e6-f74aa4ec660c" xlink:to="loc_dei_Security12bTitle_01a05ed3-90a5-7105-9141-6b06a8d50b2c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_01a05ed3-90a5-726d-8f68-b8971cc8a4dc" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_TradingSymbol"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a05ed3-90a5-73ed-93e6-f74aa4ec660c" xlink:to="loc_dei_TradingSymbol_01a05ed3-90a5-726d-8f68-b8971cc8a4dc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_01a05ed3-90a5-7b36-82f3-1a654e4577ba" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_SecurityExchangeName"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a05ed3-90a5-73ed-93e6-f74aa4ec660c" xlink:to="loc_dei_SecurityExchangeName_01a05ed3-90a5-7b36-82f3-1a654e4577ba" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_01a05ed3-90a5-746a-80f7-88a27cf2c63a" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a05ed3-90a5-73ed-93e6-f74aa4ec660c" xlink:to="loc_dei_EntityEmergingGrowthCompany_01a05ed3-90a5-746a-80f7-88a27cf2c63a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_01a05ed3-90a5-741b-bd59-946720c2e2d7" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AmendmentFlag"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a05ed3-90a5-73ed-93e6-f74aa4ec660c" xlink:to="loc_dei_AmendmentFlag_01a05ed3-90a5-741b-bd59-946720c2e2d7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_01a05ed3-90a5-7502-9a44-04c4964da0ad" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCentralIndexKey"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_01a05ed3-90a5-73ed-93e6-f74aa4ec660c" xlink:to="loc_dei_EntityCentralIndexKey_01a05ed3-90a5-7502-9a44-04c4964da0ad" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
</link:linkbase>
