<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<!--Created by FERC Project, Powered by IRIS Carbon, Unique Code 6a22ef6a8f11b42ff4c59761, Generated At Fri, 05 Jun 2026 15:46:51 GMT-->
<xbrli:xbrl xmlns:ferc="http://ferc.gov/form/2026-04-01/ferc" xmlns:ferc-form-6q="http://ferc.gov/form/2026-04-01/ferc-form-6q" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xbrldi="http://xbrl.org/2006/xbrldi" xmlns:utr="http://www.xbrl.org/2009/utr" xmlns:iso4217="http://www.xbrl.org/2003/iso4217" xmlns:xbrli="http://www.xbrl.org/2003/instance">
  <link:schemaRef xlink:type="simple" xlink:href="https://eCollection.ferc.gov/taxonomy/form6/2026-04-01/form/form6Q/form-6Q_2026-04-01.xsd" />
  <xbrli:context id="C1">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.ferc.gov/CID">C010308</xbrli:identifier>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2026-01-01</xbrli:startDate>
      <xbrli:endDate>2026-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C2">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.ferc.gov/CID">C010308</xbrli:identifier>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2026-03-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C3">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.ferc.gov/CID">C010308</xbrli:identifier>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2025-01-01</xbrli:startDate>
      <xbrli:endDate>2025-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C4">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.ferc.gov/CID">C010308</xbrli:identifier>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2025-03-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C10">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.ferc.gov/CID">C010308</xbrli:identifier>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2025-12-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C11">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.ferc.gov/CID">C010308</xbrli:identifier>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2024-12-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C22">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.ferc.gov/CID">C010308</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:typedMember dimension="ferc:ScheduleRemarksAxis">
          <ferc:ScheduleRemarksDomain>ScheduleStatisticsOfOperationsOwnedByRespondentButOperatedByOthersAbstract</ferc:ScheduleRemarksDomain>
        </xbrldi:typedMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2026-01-01</xbrli:startDate>
      <xbrli:endDate>2026-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C23">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.ferc.gov/CID">C010308</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:typedMember dimension="ferc:NoncashAdjustmentsToCashFlowsFromOperatingActivitiesAxis">
          <ferc:NoncashAdjustmentsToCashFlowsFromOperatingActivitiesDomain>1</ferc:NoncashAdjustmentsToCashFlowsFromOperatingActivitiesDomain>
        </xbrldi:typedMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2026-01-01</xbrli:startDate>
      <xbrli:endDate>2026-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C24">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.ferc.gov/CID">C010308</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:typedMember dimension="ferc:NoncashAdjustmentsToCashFlowsFromOperatingActivitiesAxis">
          <ferc:NoncashAdjustmentsToCashFlowsFromOperatingActivitiesDomain>1</ferc:NoncashAdjustmentsToCashFlowsFromOperatingActivitiesDomain>
        </xbrldi:typedMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2025-01-01</xbrli:startDate>
      <xbrli:endDate>2025-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C25">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.ferc.gov/CID">C010308</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:typedMember dimension="ferc:OtherAdjustmentsToCashFlowsFromOperatingActivitiesAxis">
          <ferc:OtherAdjustmentsToCashFlowsFromOperatingActivitiesDomain>1</ferc:OtherAdjustmentsToCashFlowsFromOperatingActivitiesDomain>
        </xbrldi:typedMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2026-01-01</xbrli:startDate>
      <xbrli:endDate>2026-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C27">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.ferc.gov/CID">C010308</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:typedMember dimension="ferc:OtherAdjustmentsToCashFlowsFromOperatingActivitiesAxis">
          <ferc:OtherAdjustmentsToCashFlowsFromOperatingActivitiesDomain>2</ferc:OtherAdjustmentsToCashFlowsFromOperatingActivitiesDomain>
        </xbrldi:typedMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2026-01-01</xbrli:startDate>
      <xbrli:endDate>2026-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C28">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.ferc.gov/CID">C010308</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:typedMember dimension="ferc:OtherAdjustmentsToCashFlowsFromOperatingActivitiesAxis">
          <ferc:OtherAdjustmentsToCashFlowsFromOperatingActivitiesDomain>2</ferc:OtherAdjustmentsToCashFlowsFromOperatingActivitiesDomain>
        </xbrldi:typedMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2025-01-01</xbrli:startDate>
      <xbrli:endDate>2025-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C29">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.ferc.gov/CID">C010308</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:typedMember dimension="ferc:OtherAdjustmentsToCashFlowsFromOperatingActivitiesAxis">
          <ferc:OtherAdjustmentsToCashFlowsFromOperatingActivitiesDomain>3</ferc:OtherAdjustmentsToCashFlowsFromOperatingActivitiesDomain>
        </xbrldi:typedMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2026-01-01</xbrli:startDate>
      <xbrli:endDate>2026-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C30">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.ferc.gov/CID">C010308</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:typedMember dimension="ferc:OtherAdjustmentsToCashFlowsFromOperatingActivitiesAxis">
          <ferc:OtherAdjustmentsToCashFlowsFromOperatingActivitiesDomain>3</ferc:OtherAdjustmentsToCashFlowsFromOperatingActivitiesDomain>
        </xbrldi:typedMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2025-01-01</xbrli:startDate>
      <xbrli:endDate>2025-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C31">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.ferc.gov/CID">C010308</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:typedMember dimension="ferc:OtherAdjustmentsToCashFlowsFromOperatingActivitiesAxis">
          <ferc:OtherAdjustmentsToCashFlowsFromOperatingActivitiesDomain>4</ferc:OtherAdjustmentsToCashFlowsFromOperatingActivitiesDomain>
        </xbrldi:typedMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2026-01-01</xbrli:startDate>
      <xbrli:endDate>2026-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C32">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.ferc.gov/CID">C010308</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:typedMember dimension="ferc:OtherAdjustmentsToCashFlowsFromOperatingActivitiesAxis">
          <ferc:OtherAdjustmentsToCashFlowsFromOperatingActivitiesDomain>4</ferc:OtherAdjustmentsToCashFlowsFromOperatingActivitiesDomain>
        </xbrldi:typedMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2025-01-01</xbrli:startDate>
      <xbrli:endDate>2025-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C33">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.ferc.gov/CID">C010308</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:typedMember dimension="ferc:OtherConstructionAndAcquisitionOfPlantInvestmentActivitiesAxis">
          <ferc:OtherConstructionAndAcquisitionOfPlantInvestmentActivitiesDomain>1</ferc:OtherConstructionAndAcquisitionOfPlantInvestmentActivitiesDomain>
        </xbrldi:typedMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2026-01-01</xbrli:startDate>
      <xbrli:endDate>2026-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C35">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.ferc.gov/CID">C010308</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:typedMember dimension="ferc:OtherConstructionAndAcquisitionOfPlantInvestmentActivitiesAxis">
          <ferc:OtherConstructionAndAcquisitionOfPlantInvestmentActivitiesDomain>2</ferc:OtherConstructionAndAcquisitionOfPlantInvestmentActivitiesDomain>
        </xbrldi:typedMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2026-01-01</xbrli:startDate>
      <xbrli:endDate>2026-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C37">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.ferc.gov/CID">C010308</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:typedMember dimension="ferc:OtherConstructionAndAcquisitionOfPlantInvestmentActivitiesAxis">
          <ferc:OtherConstructionAndAcquisitionOfPlantInvestmentActivitiesDomain>3</ferc:OtherConstructionAndAcquisitionOfPlantInvestmentActivitiesDomain>
        </xbrldi:typedMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2026-01-01</xbrli:startDate>
      <xbrli:endDate>2026-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C39">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.ferc.gov/CID">C010308</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:typedMember dimension="ferc:OtherRetirementsOfBalancesImpactingCashFlowsFromFinancingActivitiesAxis">
          <ferc:OtherRetirementsOfBalancesImpactingCashFlowsFromFinancingActivitiesDomain>1</ferc:OtherRetirementsOfBalancesImpactingCashFlowsFromFinancingActivitiesDomain>
        </xbrldi:typedMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2026-01-01</xbrli:startDate>
      <xbrli:endDate>2026-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C40">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.ferc.gov/CID">C010308</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:typedMember dimension="ferc:OtherRetirementsOfBalancesImpactingCashFlowsFromFinancingActivitiesAxis">
          <ferc:OtherRetirementsOfBalancesImpactingCashFlowsFromFinancingActivitiesDomain>1</ferc:OtherRetirementsOfBalancesImpactingCashFlowsFromFinancingActivitiesDomain>
        </xbrldi:typedMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2025-01-01</xbrli:startDate>
      <xbrli:endDate>2025-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C41">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.ferc.gov/CID">C010308</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="ferc:ProductsAndServicesAxis">ferc:CrudeOilMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2026-01-01</xbrli:startDate>
      <xbrli:endDate>2026-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C43">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.ferc.gov/CID">C010308</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="ferc:ProductsAndServicesAxis">ferc:CrudeOilMember</xbrldi:explicitMember>
        <xbrldi:typedMember dimension="ferc:StateOfOriginAndProductTypeAxis">
          <ferc:StateOfOriginAndProductTypeDomain>2</ferc:StateOfOriginAndProductTypeDomain>
        </xbrldi:typedMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2026-01-01</xbrli:startDate>
      <xbrli:endDate>2026-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C44">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.ferc.gov/CID">C010308</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="ferc:ProductsAndServicesAxis">ferc:CrudeOilMember</xbrldi:explicitMember>
        <xbrldi:typedMember dimension="ferc:StateOfOriginAndProductTypeAxis">
          <ferc:StateOfOriginAndProductTypeDomain>3</ferc:StateOfOriginAndProductTypeDomain>
        </xbrldi:typedMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2026-01-01</xbrli:startDate>
      <xbrli:endDate>2026-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C46">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.ferc.gov/CID">C010308</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:typedMember dimension="ferc:StateOfOriginAndProductTypeAxis">
          <ferc:StateOfOriginAndProductTypeDomain>2</ferc:StateOfOriginAndProductTypeDomain>
        </xbrldi:typedMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2026-01-01</xbrli:startDate>
      <xbrli:endDate>2026-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C47">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.ferc.gov/CID">C010308</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:typedMember dimension="ferc:StateOfOriginAndProductTypeAxis">
          <ferc:StateOfOriginAndProductTypeDomain>3</ferc:StateOfOriginAndProductTypeDomain>
        </xbrldi:typedMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2026-01-01</xbrli:startDate>
      <xbrli:endDate>2026-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C48">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.ferc.gov/CID">C010308</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:typedMember dimension="ferc:StateOfOriginAndProductTypeAxis">
          <ferc:StateOfOriginAndProductTypeDomain>6</ferc:StateOfOriginAndProductTypeDomain>
        </xbrldi:typedMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2026-01-01</xbrli:startDate>
      <xbrli:endDate>2026-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C50">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.ferc.gov/CID">C010308</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="ferc:ProductsAndServicesAxis">ferc:CrudeOilTrunkMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2026-01-01</xbrli:startDate>
      <xbrli:endDate>2026-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:unit id="Pure">
    <xbrli:measure>xbrli:pure</xbrli:measure>
  </xbrli:unit>
  <xbrli:unit id="Barrel">
    <xbrli:measure>utr:bbl</xbrli:measure>
  </xbrli:unit>
  <xbrli:unit id="USD">
    <xbrli:measure>iso4217:USD</xbrli:measure>
  </xbrli:unit>
  <ferc:StatementAboutImportantChangesDuringTheQuarterYearTextBlock id="Tag1" contextRef="C1">&lt;div&gt;&lt;p&gt;1) None&lt;/p&gt;
&lt;p&gt;2) None&amp;#160;&amp;#160;&lt;/p&gt;
&lt;p&gt;3) None&amp;#160;&amp;#160;&lt;/p&gt;
&lt;p&gt;4) None&amp;#160;&amp;#160;&lt;/p&gt;
&lt;p&gt;5) None&lt;/p&gt;&lt;/div&gt;</ferc:StatementAboutImportantChangesDuringTheQuarterYearTextBlock>
  <ferc:Remarks id="Tag2" contextRef="C22">N/A</ferc:Remarks>
  <ferc:OtherConstructionAndAcquisitionOfPlantInvestmentActivitiesDescription id="Tag3" contextRef="C33">Gross Additions to Nonutility Plant</ferc:OtherConstructionAndAcquisitionOfPlantInvestmentActivitiesDescription>
  <ferc:OtherConstructionAndAcquisitionOfPlantInvestmentActivitiesDescription id="Tag4" contextRef="C35">(Less) Allowance for Other Funds Used During Construction</ferc:OtherConstructionAndAcquisitionOfPlantInvestmentActivitiesDescription>
  <ferc:OtherConstructionAndAcquisitionOfPlantInvestmentActivitiesDescription id="Tag5" contextRef="C37">Other (provide details in footnote):</ferc:OtherConstructionAndAcquisitionOfPlantInvestmentActivitiesDescription>
  <ferc:OrderNumber id="Tag6" contextRef="C33" unitRef="Pure" decimals="0">1</ferc:OrderNumber>
  <ferc:OrderNumber id="Tag7" contextRef="C35" unitRef="Pure" decimals="0">2</ferc:OrderNumber>
  <ferc:OrderNumber id="Tag8" contextRef="C37" unitRef="Pure" decimals="0">3</ferc:OrderNumber>
  <ferc:TrunkRevenues id="Tag9" contextRef="C41" unitRef="USD" decimals="0">69273851</ferc:TrunkRevenues>
  <ferc:TrunkRevenues id="Tag10" contextRef="C1" unitRef="USD" decimals="0">69273851</ferc:TrunkRevenues>
  <ferc:AllowanceOilRevenue id="Tag11" contextRef="C41" unitRef="USD" decimals="0">8167968</ferc:AllowanceOilRevenue>
  <ferc:AllowanceOilRevenue id="Tag12" contextRef="C1" unitRef="USD" decimals="0">8167968</ferc:AllowanceOilRevenue>
  <ferc:OperatingRevenues id="Tag13" contextRef="C41" unitRef="USD" decimals="0">77441819</ferc:OperatingRevenues>
  <ferc:OperatingRevenues id="Tag14" contextRef="C1" unitRef="USD" decimals="0">77441819</ferc:OperatingRevenues>
  <ferc:Cash id="Tag15" contextRef="C2" unitRef="USD" decimals="0">18716702</ferc:Cash>
  <ferc:Cash id="Tag16" contextRef="C10" unitRef="USD" decimals="0">28800571</ferc:Cash>
  <ferc:ReceivablesFromAffiliatedCompanies id="Tag17" contextRef="C2" unitRef="USD" decimals="0">6001168</ferc:ReceivablesFromAffiliatedCompanies>
  <ferc:ReceivablesFromAffiliatedCompanies id="Tag18" contextRef="C10" unitRef="USD" decimals="0">5079452</ferc:ReceivablesFromAffiliatedCompanies>
  <ferc:AccountsReceivable id="Tag19" contextRef="C2" unitRef="USD" decimals="0">19091882</ferc:AccountsReceivable>
  <ferc:AccountsReceivable id="Tag20" contextRef="C10" unitRef="USD" decimals="0">20328675</ferc:AccountsReceivable>
  <ferc:OilInventory id="Tag21" contextRef="C2" unitRef="USD" decimals="0">167068</ferc:OilInventory>
  <ferc:OilInventory id="Tag22" contextRef="C10" unitRef="USD" decimals="0">1298387</ferc:OilInventory>
  <ferc:Prepayments id="Tag23" contextRef="C10" unitRef="USD" decimals="0">3067</ferc:Prepayments>
  <ferc:CurrentAssets id="Tag24" contextRef="C2" unitRef="USD" decimals="0">43976820</ferc:CurrentAssets>
  <ferc:CurrentAssets id="Tag25" contextRef="C10" unitRef="USD" decimals="0">55510152</ferc:CurrentAssets>
  <ferc:CarrierProperty id="Tag26" contextRef="C2" unitRef="USD" decimals="0">1185804596</ferc:CarrierProperty>
  <ferc:CarrierProperty id="Tag27" contextRef="C10" unitRef="USD" decimals="0">1185572805</ferc:CarrierProperty>
  <ferc:AccruedDepreciationCarrierProperty id="Tag28" contextRef="C2" unitRef="USD" decimals="0">71691212</ferc:AccruedDepreciationCarrierProperty>
  <ferc:AccruedDepreciationCarrierProperty id="Tag29" contextRef="C10" unitRef="USD" decimals="0">65385731</ferc:AccruedDepreciationCarrierProperty>
  <ferc:CarrierPropertyNet id="Tag30" contextRef="C2" unitRef="USD" decimals="0">1114113384</ferc:CarrierPropertyNet>
  <ferc:CarrierPropertyNet id="Tag31" contextRef="C10" unitRef="USD" decimals="0">1120187074</ferc:CarrierPropertyNet>
  <ferc:TangibleProperty id="Tag32" contextRef="C2" unitRef="USD" decimals="0">1114113384</ferc:TangibleProperty>
  <ferc:TangibleProperty id="Tag33" contextRef="C10" unitRef="USD" decimals="0">1120187074</ferc:TangibleProperty>
  <ferc:OrganizationCostsAndOtherIntangibles id="Tag34" contextRef="C2" unitRef="USD" decimals="0">624908501</ferc:OrganizationCostsAndOtherIntangibles>
  <ferc:OrganizationCostsAndOtherIntangibles id="Tag35" contextRef="C10" unitRef="USD" decimals="0">624908501</ferc:OrganizationCostsAndOtherIntangibles>
  <ferc:AccruedAmortizationOfIntangibles id="Tag36" contextRef="C2" unitRef="USD" decimals="0">193838067</ferc:AccruedAmortizationOfIntangibles>
  <ferc:AccruedAmortizationOfIntangibles id="Tag37" contextRef="C10" unitRef="USD" decimals="0">184849062</ferc:AccruedAmortizationOfIntangibles>
  <ferc:OtherAssetsAndDeferredCharges id="Tag38" contextRef="C2" unitRef="USD" decimals="0">431070434</ferc:OtherAssetsAndDeferredCharges>
  <ferc:OtherAssetsAndDeferredCharges id="Tag39" contextRef="C10" unitRef="USD" decimals="0">440059439</ferc:OtherAssetsAndDeferredCharges>
  <ferc:Assets id="Tag40" contextRef="C2" unitRef="USD" decimals="0">1589160638</ferc:Assets>
  <ferc:Assets id="Tag41" contextRef="C10" unitRef="USD" decimals="0">1615756665</ferc:Assets>
  <ferc:PayablesToAffiliatedCompanies id="Tag42" contextRef="C2" unitRef="USD" decimals="0">6245031</ferc:PayablesToAffiliatedCompanies>
  <ferc:PayablesToAffiliatedCompanies id="Tag43" contextRef="C10" unitRef="USD" decimals="0">5149135</ferc:PayablesToAffiliatedCompanies>
  <ferc:AccountsPayable id="Tag44" contextRef="C2" unitRef="USD" decimals="0">2700236</ferc:AccountsPayable>
  <ferc:AccountsPayable id="Tag45" contextRef="C10" unitRef="USD" decimals="0">3378918</ferc:AccountsPayable>
  <ferc:TaxesPayable id="Tag46" contextRef="C2" unitRef="USD" decimals="0">3100600</ferc:TaxesPayable>
  <ferc:TaxesPayable id="Tag47" contextRef="C10" unitRef="USD" decimals="0">12431105</ferc:TaxesPayable>
  <ferc:CurrentLiabilities id="Tag48" contextRef="C2" unitRef="USD" decimals="0">12045867</ferc:CurrentLiabilities>
  <ferc:CurrentLiabilities id="Tag49" contextRef="C10" unitRef="USD" decimals="0">20959158</ferc:CurrentLiabilities>
  <ferc:OtherNoncurrentLiabilities id="Tag50" contextRef="C2" unitRef="USD" decimals="0">591205</ferc:OtherNoncurrentLiabilities>
  <ferc:OtherNoncurrentLiabilities id="Tag51" contextRef="C10" unitRef="USD" decimals="0">15443659</ferc:OtherNoncurrentLiabilities>
  <ferc:NoncurrentLiabilities id="Tag52" contextRef="C2" unitRef="USD" decimals="0">591205</ferc:NoncurrentLiabilities>
  <ferc:NoncurrentLiabilities id="Tag53" contextRef="C10" unitRef="USD" decimals="0">15443659</ferc:NoncurrentLiabilities>
  <ferc:Liabilities id="Tag54" contextRef="C2" unitRef="USD" decimals="0">12637072</ferc:Liabilities>
  <ferc:Liabilities id="Tag55" contextRef="C10" unitRef="USD" decimals="0">36402817</ferc:Liabilities>
  <ferc:AdditionalPaidInCapital id="Tag56" contextRef="C2" unitRef="USD" decimals="0">1576523566</ferc:AdditionalPaidInCapital>
  <ferc:AdditionalPaidInCapital id="Tag57" contextRef="C10" unitRef="USD" decimals="0">1579353848</ferc:AdditionalPaidInCapital>
  <ferc:StockholdersEquity id="Tag58" contextRef="C2" unitRef="USD" decimals="0">1576523566</ferc:StockholdersEquity>
  <ferc:StockholdersEquity id="Tag59" contextRef="C10" unitRef="USD" decimals="0">1579353848</ferc:StockholdersEquity>
  <ferc:LiabilitiesAndStockholdersEquity id="Tag60" contextRef="C2" unitRef="USD" decimals="0">1589160638</ferc:LiabilitiesAndStockholdersEquity>
  <ferc:LiabilitiesAndStockholdersEquity id="Tag61" contextRef="C10" unitRef="USD" decimals="0">1615756665</ferc:LiabilitiesAndStockholdersEquity>
  <ferc:OperatingRevenues id="Tag62" contextRef="C3" unitRef="USD" decimals="0">85581881</ferc:OperatingRevenues>
  <ferc:OperatingExpenses id="Tag63" contextRef="C1" unitRef="USD" decimals="0">31507641</ferc:OperatingExpenses>
  <ferc:OperatingExpenses id="Tag64" contextRef="C3" unitRef="USD" decimals="0">37377854</ferc:OperatingExpenses>
  <ferc:NetCarrierOperatingIncome id="Tag65" contextRef="C1" unitRef="USD" decimals="0">45934178</ferc:NetCarrierOperatingIncome>
  <ferc:NetCarrierOperatingIncome id="Tag66" contextRef="C3" unitRef="USD" decimals="0">48204027</ferc:NetCarrierOperatingIncome>
  <ferc:InterestAndDividendIncome id="Tag67" contextRef="C1" unitRef="USD" decimals="0">308354</ferc:InterestAndDividendIncome>
  <ferc:InterestAndDividendIncome id="Tag68" contextRef="C3" unitRef="USD" decimals="0">410766</ferc:InterestAndDividendIncome>
  <ferc:MiscellaneousIncome id="Tag69" contextRef="C1" unitRef="USD" decimals="0">553</ferc:MiscellaneousIncome>
  <ferc:MiscellaneousIncomeCharges id="Tag70" contextRef="C1" unitRef="USD" decimals="0">1364</ferc:MiscellaneousIncomeCharges>
  <ferc:MiscellaneousIncomeCharges id="Tag71" contextRef="C3" unitRef="USD" decimals="0">994934</ferc:MiscellaneousIncomeCharges>
  <ferc:OtherIncomeAndDeductions id="Tag72" contextRef="C1" unitRef="USD" decimals="0">307543</ferc:OtherIncomeAndDeductions>
  <ferc:OtherIncomeAndDeductions id="Tag73" contextRef="C3" unitRef="USD" decimals="0">-584168</ferc:OtherIncomeAndDeductions>
  <ferc:OrdinaryIncomeBeforeFederalIncomeTaxes id="Tag74" contextRef="C1" unitRef="USD" decimals="0">46241721</ferc:OrdinaryIncomeBeforeFederalIncomeTaxes>
  <ferc:OrdinaryIncomeBeforeFederalIncomeTaxes id="Tag75" contextRef="C3" unitRef="USD" decimals="0">47619859</ferc:OrdinaryIncomeBeforeFederalIncomeTaxes>
  <ferc:FederalIncomeTaxesOnIncomeFromContinuingOperations id="Tag76" contextRef="C1" unitRef="USD" decimals="0">81003</ferc:FederalIncomeTaxesOnIncomeFromContinuingOperations>
  <ferc:FederalIncomeTaxesOnIncomeFromContinuingOperations id="Tag77" contextRef="C3" unitRef="USD" decimals="0">105588</ferc:FederalIncomeTaxesOnIncomeFromContinuingOperations>
  <ferc:IncomeLossFromContinuingOperations id="Tag78" contextRef="C1" unitRef="USD" decimals="0">46160718</ferc:IncomeLossFromContinuingOperations>
  <ferc:IncomeLossFromContinuingOperations id="Tag79" contextRef="C3" unitRef="USD" decimals="0">47514271</ferc:IncomeLossFromContinuingOperations>
  <ferc:IncomeLossBeforeExtraordinaryItems id="Tag80" contextRef="C1" unitRef="USD" decimals="0">46160718</ferc:IncomeLossBeforeExtraordinaryItems>
  <ferc:IncomeLossBeforeExtraordinaryItems id="Tag81" contextRef="C3" unitRef="USD" decimals="0">47514271</ferc:IncomeLossBeforeExtraordinaryItems>
  <ferc:NetIncomeLoss id="Tag82" contextRef="C1" unitRef="USD" decimals="0">46160718</ferc:NetIncomeLoss>
  <ferc:NetIncomeLoss id="Tag83" contextRef="C3" unitRef="USD" decimals="0">47514271</ferc:NetIncomeLoss>
  <ferc:ComprehensiveIncomeLoss id="Tag84" contextRef="C3" unitRef="USD" decimals="0">47514271</ferc:ComprehensiveIncomeLoss>
  <ferc:ComprehensiveIncomeLoss id="Tag85" contextRef="C1" unitRef="USD" decimals="0">46160718</ferc:ComprehensiveIncomeLoss>
  <ferc:OtherAdjustmentsToCashFlowsFromOperatingActivitiesDescription id="Tag86" contextRef="C25">Other:</ferc:OtherAdjustmentsToCashFlowsFromOperatingActivitiesDescription>
  <ferc:OtherAdjustmentsToCashFlowsFromOperatingActivitiesDescription id="Tag87" contextRef="C27">Net Increase (Decrease) in Deferred Revenue</ferc:OtherAdjustmentsToCashFlowsFromOperatingActivitiesDescription>
  <ferc:OtherAdjustmentsToCashFlowsFromOperatingActivities id="Tag88" contextRef="C27" unitRef="USD" decimals="0">-14852454</ferc:OtherAdjustmentsToCashFlowsFromOperatingActivities>
  <ferc:OtherAdjustmentsToCashFlowsFromOperatingActivities id="Tag89" contextRef="C28" unitRef="USD" decimals="0">-14085856</ferc:OtherAdjustmentsToCashFlowsFromOperatingActivities>
  <ferc:OtherAdjustmentsToCashFlowsFromOperatingActivitiesDescription id="Tag90" contextRef="C29">Net (Increase) Decrease in Prepaids and Other Assets</ferc:OtherAdjustmentsToCashFlowsFromOperatingActivitiesDescription>
  <ferc:OtherAdjustmentsToCashFlowsFromOperatingActivities id="Tag91" contextRef="C29" unitRef="USD" decimals="0">3067</ferc:OtherAdjustmentsToCashFlowsFromOperatingActivities>
  <ferc:OtherAdjustmentsToCashFlowsFromOperatingActivities id="Tag92" contextRef="C30" unitRef="USD" decimals="0">2857</ferc:OtherAdjustmentsToCashFlowsFromOperatingActivities>
  <ferc:OtherAdjustmentsToCashFlowsFromOperatingActivitiesDescription id="Tag93" contextRef="C31">Capital project write-offs</ferc:OtherAdjustmentsToCashFlowsFromOperatingActivitiesDescription>
  <ferc:OtherAdjustmentsToCashFlowsFromOperatingActivities id="Tag94" contextRef="C32" unitRef="USD" decimals="0">994154</ferc:OtherAdjustmentsToCashFlowsFromOperatingActivities>
  <ferc:OrderNumber id="Tag95" contextRef="C25" unitRef="Pure" decimals="0">1</ferc:OrderNumber>
  <ferc:OrderNumber id="Tag96" contextRef="C27" unitRef="Pure" decimals="0">2</ferc:OrderNumber>
  <ferc:OrderNumber id="Tag97" contextRef="C29" unitRef="Pure" decimals="0">3</ferc:OrderNumber>
  <ferc:OrderNumber id="Tag98" contextRef="C31" unitRef="Pure" decimals="0">4</ferc:OrderNumber>
  <ferc:DescriptionOfOtherRetirementsImpactingCashFlowsFromFinancingActivities id="Tag99" contextRef="C39">Member Distributions</ferc:DescriptionOfOtherRetirementsImpactingCashFlowsFromFinancingActivities>
  <ferc:OtherRetirementsOfBalancesImpactingCashFlowsFromFinancingActivities id="Tag100" contextRef="C39" unitRef="USD" decimals="0">48991000</ferc:OtherRetirementsOfBalancesImpactingCashFlowsFromFinancingActivities>
  <ferc:OtherRetirementsOfBalancesImpactingCashFlowsFromFinancingActivities id="Tag101" contextRef="C40" unitRef="USD" decimals="0">73574000</ferc:OtherRetirementsOfBalancesImpactingCashFlowsFromFinancingActivities>
  <ferc:OrderNumber id="Tag102" contextRef="C39" unitRef="Pure" decimals="0">1</ferc:OrderNumber>
  <ferc:DepreciationAndDepletion id="Tag103" contextRef="C1" unitRef="USD" decimals="0">6305481</ferc:DepreciationAndDepletion>
  <ferc:DepreciationAndDepletion id="Tag104" contextRef="C3" unitRef="USD" decimals="0">6243506</ferc:DepreciationAndDepletion>
  <ferc:Amortization id="Tag105" contextRef="C1" unitRef="USD" decimals="0">8989005</ferc:Amortization>
  <ferc:Amortization id="Tag106" contextRef="C3" unitRef="USD" decimals="0">12618963</ferc:Amortization>
  <ferc:NetIncreaseDecreaseInReceivablesOperatingActivities id="Tag107" contextRef="C1" unitRef="USD" decimals="0">-1236793</ferc:NetIncreaseDecreaseInReceivablesOperatingActivities>
  <ferc:NetIncreaseDecreaseInReceivablesOperatingActivities id="Tag108" contextRef="C3" unitRef="USD" decimals="0">2439</ferc:NetIncreaseDecreaseInReceivablesOperatingActivities>
  <ferc:NetIncreaseDecreaseInInventoryOperatingActivities id="Tag109" contextRef="C1" unitRef="USD" decimals="0">-1131319</ferc:NetIncreaseDecreaseInInventoryOperatingActivities>
  <ferc:NetIncreaseDecreaseInInventoryOperatingActivities id="Tag110" contextRef="C3" unitRef="USD" decimals="0">-901644</ferc:NetIncreaseDecreaseInInventoryOperatingActivities>
  <ferc:NetIncreaseDecreaseInPayablesAndAccruedExpensesOperatingActivities id="Tag111" contextRef="C1" unitRef="USD" decimals="0">-10009187</ferc:NetIncreaseDecreaseInPayablesAndAccruedExpensesOperatingActivities>
  <ferc:NetIncreaseDecreaseInPayablesAndAccruedExpensesOperatingActivities id="Tag112" contextRef="C3" unitRef="USD" decimals="0">-4777579</ferc:NetIncreaseDecreaseInPayablesAndAccruedExpensesOperatingActivities>
  <ferc:NetCashProvidedByUsedInOperatingActivities id="Tag113" contextRef="C1" unitRef="USD" decimals="0">39138922</ferc:NetCashProvidedByUsedInOperatingActivities>
  <ferc:NetCashProvidedByUsedInOperatingActivities id="Tag114" contextRef="C3" unitRef="USD" decimals="0">48934315</ferc:NetCashProvidedByUsedInOperatingActivities>
  <ferc:GrossAdditionsToCarrierPropertyInvestmentActivities id="Tag115" contextRef="C1" unitRef="USD" decimals="0">231791</ferc:GrossAdditionsToCarrierPropertyInvestmentActivities>
  <ferc:GrossAdditionsToCarrierPropertyInvestmentActivities id="Tag116" contextRef="C3" unitRef="USD" decimals="0">3080830</ferc:GrossAdditionsToCarrierPropertyInvestmentActivities>
  <ferc:CashOutflowsForPlant id="Tag117" contextRef="C1" unitRef="USD" decimals="0">231791</ferc:CashOutflowsForPlant>
  <ferc:CashOutflowsForPlant id="Tag118" contextRef="C3" unitRef="USD" decimals="0">3080830</ferc:CashOutflowsForPlant>
  <ferc:CashFlowsProvidedFromUsedInInvestmentActivities id="Tag119" contextRef="C1" unitRef="USD" decimals="0">-231791</ferc:CashFlowsProvidedFromUsedInInvestmentActivities>
  <ferc:CashFlowsProvidedFromUsedInInvestmentActivities id="Tag120" contextRef="C3" unitRef="USD" decimals="0">-3080830</ferc:CashFlowsProvidedFromUsedInInvestmentActivities>
  <ferc:CashFlowsProvidedFromUsedInFinancingActivities id="Tag121" contextRef="C1" unitRef="USD" decimals="0">-48991000</ferc:CashFlowsProvidedFromUsedInFinancingActivities>
  <ferc:CashFlowsProvidedFromUsedInFinancingActivities id="Tag122" contextRef="C3" unitRef="USD" decimals="0">-73574000</ferc:CashFlowsProvidedFromUsedInFinancingActivities>
  <ferc:NetIncreaseDecreaseInCashAndCashEquivalents id="Tag123" contextRef="C1" unitRef="USD" decimals="0">-10083869</ferc:NetIncreaseDecreaseInCashAndCashEquivalents>
  <ferc:NetIncreaseDecreaseInCashAndCashEquivalents id="Tag124" contextRef="C3" unitRef="USD" decimals="0">-27720515</ferc:NetIncreaseDecreaseInCashAndCashEquivalents>
  <ferc:CashAndCashEquivalents id="Tag125" contextRef="C10" unitRef="USD" decimals="0">28800571</ferc:CashAndCashEquivalents>
  <ferc:CashAndCashEquivalents id="Tag126" contextRef="C11" unitRef="USD" decimals="0">41356405</ferc:CashAndCashEquivalents>
  <ferc:CashAndCashEquivalents id="Tag127" contextRef="C2" unitRef="USD" decimals="0">18716702</ferc:CashAndCashEquivalents>
  <ferc:CashAndCashEquivalents id="Tag128" contextRef="C4" unitRef="USD" decimals="0">13635890</ferc:CashAndCashEquivalents>
  <ferc:NoncashAdjustmentsToCashFlowsFromOperatingActivitiesDescription id="Tag129" contextRef="C23">Net Increase (Decrease) in Related Party</ferc:NoncashAdjustmentsToCashFlowsFromOperatingActivitiesDescription>
  <ferc:NoncashAdjustmentsToCashFlowsFromOperatingActivities id="Tag130" contextRef="C23" unitRef="USD" decimals="0">174180</ferc:NoncashAdjustmentsToCashFlowsFromOperatingActivities>
  <ferc:NoncashAdjustmentsToCashFlowsFromOperatingActivities id="Tag131" contextRef="C24" unitRef="USD" decimals="0">-475206</ferc:NoncashAdjustmentsToCashFlowsFromOperatingActivities>
  <ferc:OrderNumber id="Tag132" contextRef="C23" unitRef="Pure" decimals="0">1</ferc:OrderNumber>
  <ferc:SalariesAndWagesOperationsAndMaintenance id="Tag133" contextRef="C50" unitRef="USD" decimals="0">551980</ferc:SalariesAndWagesOperationsAndMaintenance>
  <ferc:SalariesAndWagesOperationsAndMaintenance id="Tag134" contextRef="C41" unitRef="USD" decimals="0">551980</ferc:SalariesAndWagesOperationsAndMaintenance>
  <ferc:SalariesAndWagesOperationsAndMaintenance id="Tag135" contextRef="C1" unitRef="USD" decimals="0">551980</ferc:SalariesAndWagesOperationsAndMaintenance>
  <ferc:MaterialsAndSuppliesOperationsAndMaintenance id="Tag136" contextRef="C50" unitRef="USD" decimals="0">406746</ferc:MaterialsAndSuppliesOperationsAndMaintenance>
  <ferc:MaterialsAndSuppliesOperationsAndMaintenance id="Tag137" contextRef="C41" unitRef="USD" decimals="0">406746</ferc:MaterialsAndSuppliesOperationsAndMaintenance>
  <ferc:MaterialsAndSuppliesOperationsAndMaintenance id="Tag138" contextRef="C1" unitRef="USD" decimals="0">406746</ferc:MaterialsAndSuppliesOperationsAndMaintenance>
  <ferc:OutsideServicesOperationsAndMaintenance id="Tag139" contextRef="C50" unitRef="USD" decimals="0">197697</ferc:OutsideServicesOperationsAndMaintenance>
  <ferc:OutsideServicesOperationsAndMaintenance id="Tag140" contextRef="C41" unitRef="USD" decimals="0">197697</ferc:OutsideServicesOperationsAndMaintenance>
  <ferc:OutsideServicesOperationsAndMaintenance id="Tag141" contextRef="C1" unitRef="USD" decimals="0">197697</ferc:OutsideServicesOperationsAndMaintenance>
  <ferc:OperatingFuelAndPowerOperationsAndMaintenance id="Tag142" contextRef="C50" unitRef="USD" decimals="0">10994743</ferc:OperatingFuelAndPowerOperationsAndMaintenance>
  <ferc:OperatingFuelAndPowerOperationsAndMaintenance id="Tag143" contextRef="C41" unitRef="USD" decimals="0">10994743</ferc:OperatingFuelAndPowerOperationsAndMaintenance>
  <ferc:OperatingFuelAndPowerOperationsAndMaintenance id="Tag144" contextRef="C1" unitRef="USD" decimals="0">10994743</ferc:OperatingFuelAndPowerOperationsAndMaintenance>
  <ferc:OilLossesAndShortagesOperationsAndMaintenance id="Tag145" contextRef="C50" unitRef="USD" decimals="0">88965</ferc:OilLossesAndShortagesOperationsAndMaintenance>
  <ferc:OilLossesAndShortagesOperationsAndMaintenance id="Tag146" contextRef="C41" unitRef="USD" decimals="0">88965</ferc:OilLossesAndShortagesOperationsAndMaintenance>
  <ferc:OilLossesAndShortagesOperationsAndMaintenance id="Tag147" contextRef="C1" unitRef="USD" decimals="0">88965</ferc:OilLossesAndShortagesOperationsAndMaintenance>
  <ferc:RentalsOperationsAndMaintenance id="Tag148" contextRef="C50" unitRef="USD" decimals="0">59029</ferc:RentalsOperationsAndMaintenance>
  <ferc:RentalsOperationsAndMaintenance id="Tag149" contextRef="C41" unitRef="USD" decimals="0">59029</ferc:RentalsOperationsAndMaintenance>
  <ferc:RentalsOperationsAndMaintenance id="Tag150" contextRef="C1" unitRef="USD" decimals="0">59029</ferc:RentalsOperationsAndMaintenance>
  <ferc:OtherExpensesOperationsAndMaintenance id="Tag151" contextRef="C50" unitRef="USD" decimals="0">155905</ferc:OtherExpensesOperationsAndMaintenance>
  <ferc:OtherExpensesOperationsAndMaintenance id="Tag152" contextRef="C41" unitRef="USD" decimals="0">155905</ferc:OtherExpensesOperationsAndMaintenance>
  <ferc:OtherExpensesOperationsAndMaintenance id="Tag153" contextRef="C1" unitRef="USD" decimals="0">155905</ferc:OtherExpensesOperationsAndMaintenance>
  <ferc:OperationsAndMaintenanceExpensesOil id="Tag154" contextRef="C50" unitRef="USD" decimals="0">12455065</ferc:OperationsAndMaintenanceExpensesOil>
  <ferc:OperationsAndMaintenanceExpensesOil id="Tag155" contextRef="C41" unitRef="USD" decimals="0">12455065</ferc:OperationsAndMaintenanceExpensesOil>
  <ferc:OperationsAndMaintenanceExpensesOil id="Tag156" contextRef="C1" unitRef="USD" decimals="0">12455065</ferc:OperationsAndMaintenanceExpensesOil>
  <ferc:MaterialsAndSuppliesGeneralExpense id="Tag157" contextRef="C50" unitRef="USD" decimals="0">21797</ferc:MaterialsAndSuppliesGeneralExpense>
  <ferc:MaterialsAndSuppliesGeneralExpense id="Tag158" contextRef="C41" unitRef="USD" decimals="0">21797</ferc:MaterialsAndSuppliesGeneralExpense>
  <ferc:MaterialsAndSuppliesGeneralExpense id="Tag159" contextRef="C1" unitRef="USD" decimals="0">21797</ferc:MaterialsAndSuppliesGeneralExpense>
  <ferc:OutsideServicesGeneralExpense id="Tag160" contextRef="C50" unitRef="USD" decimals="0">482455</ferc:OutsideServicesGeneralExpense>
  <ferc:OutsideServicesGeneralExpense id="Tag161" contextRef="C41" unitRef="USD" decimals="0">482455</ferc:OutsideServicesGeneralExpense>
  <ferc:OutsideServicesGeneralExpense id="Tag162" contextRef="C1" unitRef="USD" decimals="0">482455</ferc:OutsideServicesGeneralExpense>
  <ferc:DepreciationAndAmortizationGeneralExpense id="Tag163" contextRef="C50" unitRef="USD" decimals="0">15294486</ferc:DepreciationAndAmortizationGeneralExpense>
  <ferc:DepreciationAndAmortizationGeneralExpense id="Tag164" contextRef="C41" unitRef="USD" decimals="0">15294486</ferc:DepreciationAndAmortizationGeneralExpense>
  <ferc:DepreciationAndAmortizationGeneralExpense id="Tag165" contextRef="C1" unitRef="USD" decimals="0">15294486</ferc:DepreciationAndAmortizationGeneralExpense>
  <ferc:EmployeeBenefitsGeneralExpense id="Tag166" contextRef="C50" unitRef="USD" decimals="0">186213</ferc:EmployeeBenefitsGeneralExpense>
  <ferc:EmployeeBenefitsGeneralExpense id="Tag167" contextRef="C41" unitRef="USD" decimals="0">186213</ferc:EmployeeBenefitsGeneralExpense>
  <ferc:EmployeeBenefitsGeneralExpense id="Tag168" contextRef="C1" unitRef="USD" decimals="0">186213</ferc:EmployeeBenefitsGeneralExpense>
  <ferc:InsuranceGeneralExpense id="Tag169" contextRef="C50" unitRef="USD" decimals="0">1628</ferc:InsuranceGeneralExpense>
  <ferc:InsuranceGeneralExpense id="Tag170" contextRef="C41" unitRef="USD" decimals="0">1628</ferc:InsuranceGeneralExpense>
  <ferc:InsuranceGeneralExpense id="Tag171" contextRef="C1" unitRef="USD" decimals="0">1628</ferc:InsuranceGeneralExpense>
  <ferc:CasualtyAndOtherLossesGeneralExpense id="Tag172" contextRef="C50" unitRef="USD" decimals="0">513</ferc:CasualtyAndOtherLossesGeneralExpense>
  <ferc:CasualtyAndOtherLossesGeneralExpense id="Tag173" contextRef="C41" unitRef="USD" decimals="0">513</ferc:CasualtyAndOtherLossesGeneralExpense>
  <ferc:CasualtyAndOtherLossesGeneralExpense id="Tag174" contextRef="C1" unitRef="USD" decimals="0">513</ferc:CasualtyAndOtherLossesGeneralExpense>
  <ferc:PipelineTaxesGeneralExpense id="Tag175" contextRef="C50" unitRef="USD" decimals="0">3063251</ferc:PipelineTaxesGeneralExpense>
  <ferc:PipelineTaxesGeneralExpense id="Tag176" contextRef="C41" unitRef="USD" decimals="0">3063251</ferc:PipelineTaxesGeneralExpense>
  <ferc:PipelineTaxesGeneralExpense id="Tag177" contextRef="C1" unitRef="USD" decimals="0">3063251</ferc:PipelineTaxesGeneralExpense>
  <ferc:OtherExpensesGeneralExpense id="Tag178" contextRef="C50" unitRef="USD" decimals="0">2233</ferc:OtherExpensesGeneralExpense>
  <ferc:OtherExpensesGeneralExpense id="Tag179" contextRef="C41" unitRef="USD" decimals="0">2233</ferc:OtherExpensesGeneralExpense>
  <ferc:OtherExpensesGeneralExpense id="Tag180" contextRef="C1" unitRef="USD" decimals="0">2233</ferc:OtherExpensesGeneralExpense>
  <ferc:GeneralExpensesOil id="Tag181" contextRef="C50" unitRef="USD" decimals="0">19052576</ferc:GeneralExpensesOil>
  <ferc:GeneralExpensesOil id="Tag182" contextRef="C41" unitRef="USD" decimals="0">19052576</ferc:GeneralExpensesOil>
  <ferc:GeneralExpensesOil id="Tag183" contextRef="C1" unitRef="USD" decimals="0">19052576</ferc:GeneralExpensesOil>
  <ferc:OperatingExpenses id="Tag184" contextRef="C50" unitRef="USD" decimals="0">31507641</ferc:OperatingExpenses>
  <ferc:OperatingExpenses id="Tag185" contextRef="C41" unitRef="USD" decimals="0">31507641</ferc:OperatingExpenses>
  <ferc:StateOfOrigin id="Tag186" contextRef="C43">Texas</ferc:StateOfOrigin>
  <ferc:NumberOfBarrelsReceivedFromConnectingCarriers id="Tag187" contextRef="C43" unitRef="Barrel" decimals="0">59212076</ferc:NumberOfBarrelsReceivedFromConnectingCarriers>
  <ferc:NumberOfBarrelsReceivedOnTrunkLines id="Tag188" contextRef="C43" unitRef="Barrel" decimals="0">395000</ferc:NumberOfBarrelsReceivedOnTrunkLines>
  <ferc:NumberOfBarrelsReceived id="Tag189" contextRef="C43" unitRef="Barrel" decimals="0">59607076</ferc:NumberOfBarrelsReceived>
  <ferc:StateOfOrigin id="Tag190" contextRef="C44">Delivered Out</ferc:StateOfOrigin>
  <ferc:NumberOfBarrelsDeliveredOutToConnectingCarriers id="Tag191" contextRef="C44" unitRef="Barrel" decimals="0">59340094</ferc:NumberOfBarrelsDeliveredOutToConnectingCarriers>
  <ferc:NumberOfBarrelsDeliveredOut id="Tag192" contextRef="C44" unitRef="Barrel" decimals="0">59340094</ferc:NumberOfBarrelsDeliveredOut>
  <ferc:NumberOfBarrelsReceivedFromConnectingCarriers id="Tag193" contextRef="C41" unitRef="Barrel" decimals="0">59212076</ferc:NumberOfBarrelsReceivedFromConnectingCarriers>
  <ferc:NumberOfBarrelsReceivedOnTrunkLines id="Tag194" contextRef="C41" unitRef="Barrel" decimals="0">395000</ferc:NumberOfBarrelsReceivedOnTrunkLines>
  <ferc:NumberOfBarrelsReceived id="Tag195" contextRef="C41" unitRef="Barrel" decimals="0">59607076</ferc:NumberOfBarrelsReceived>
  <ferc:NumberOfBarrelsDeliveredOutToConnectingCarriers id="Tag196" contextRef="C41" unitRef="Barrel" decimals="0">59340094</ferc:NumberOfBarrelsDeliveredOutToConnectingCarriers>
  <ferc:NumberOfBarrelsDeliveredOut id="Tag197" contextRef="C41" unitRef="Barrel" decimals="0">59340094</ferc:NumberOfBarrelsDeliveredOut>
  <ferc:NumberOfBarrelsReceivedFromConnectingCarriers id="Tag198" contextRef="C1" unitRef="Barrel" decimals="0">59212076</ferc:NumberOfBarrelsReceivedFromConnectingCarriers>
  <ferc:NumberOfBarrelsReceivedOnTrunkLines id="Tag199" contextRef="C1" unitRef="Barrel" decimals="0">395000</ferc:NumberOfBarrelsReceivedOnTrunkLines>
  <ferc:NumberOfBarrelsReceived id="Tag200" contextRef="C1" unitRef="Barrel" decimals="0">59607076</ferc:NumberOfBarrelsReceived>
  <ferc:NumberOfBarrelsDeliveredOutToConnectingCarriers id="Tag201" contextRef="C1" unitRef="Barrel" decimals="0">59340094</ferc:NumberOfBarrelsDeliveredOutToConnectingCarriers>
  <ferc:NumberOfBarrelsDeliveredOut id="Tag202" contextRef="C1" unitRef="Barrel" decimals="0">59340094</ferc:NumberOfBarrelsDeliveredOut>
  <ferc:OrderNumber id="Tag203" contextRef="C46" unitRef="Pure" decimals="0">2</ferc:OrderNumber>
  <ferc:OrderNumber id="Tag204" contextRef="C47" unitRef="Pure" decimals="0">3</ferc:OrderNumber>
  <ferc:OrderNumber id="Tag205" contextRef="C48" unitRef="Pure" decimals="0">6</ferc:OrderNumber>
  <ferc:UnappropriatedRetainedIncomeCreditTransferredFromIncome id="Tag206" contextRef="C1" unitRef="USD" decimals="0">46160718</ferc:UnappropriatedRetainedIncomeCreditTransferredFromIncome>
  <ferc:UnappropriatedRetainedIncomeCreditTransferredFromIncome id="Tag207" contextRef="C3" unitRef="USD" decimals="0">47514271</ferc:UnappropriatedRetainedIncomeCreditTransferredFromIncome>
  <ferc:AdditionsToUnappropriatedRetainedIncome id="Tag208" contextRef="C1" unitRef="USD" decimals="0">46160718</ferc:AdditionsToUnappropriatedRetainedIncome>
  <ferc:AdditionsToUnappropriatedRetainedIncome id="Tag209" contextRef="C3" unitRef="USD" decimals="0">47514271</ferc:AdditionsToUnappropriatedRetainedIncome>
  <ferc:DividendAppropriationsOfRetainedIncome id="Tag210" contextRef="C1" unitRef="USD" decimals="0">46160718</ferc:DividendAppropriationsOfRetainedIncome>
  <ferc:DividendAppropriationsOfRetainedIncome id="Tag211" contextRef="C3" unitRef="USD" decimals="0">47514271</ferc:DividendAppropriationsOfRetainedIncome>
  <ferc:DeductionsFromUnappropriatedRetainedIncome id="Tag212" contextRef="C1" unitRef="USD" decimals="0">46160718</ferc:DeductionsFromUnappropriatedRetainedIncome>
  <ferc:DeductionsFromUnappropriatedRetainedIncome id="Tag213" contextRef="C3" unitRef="USD" decimals="0">47514271</ferc:DeductionsFromUnappropriatedRetainedIncome>
  <ferc:AttestationName id="Tag214" contextRef="C1">Russ Montgomery</ferc:AttestationName>
  <ferc:AttestationTitle id="Tag215" contextRef="C1">Vice President &amp; Controller</ferc:AttestationTitle>
  <ferc:CorporateOfficerCertificationSignature id="Tag216" contextRef="C1">Russ Montgomery</ferc:CorporateOfficerCertificationSignature>
  <ferc:AttestationDate id="Tag217" contextRef="C1">2026-06-05</ferc:AttestationDate>
  <ferc:FormType id="Tag218" contextRef="C1">6-Q</ferc:FormType>
  <ferc:RespondentLegalName id="Tag219" contextRef="C1">Cactus II Pipeline LLC</ferc:RespondentLegalName>
  <ferc:CompanyIdentifier id="Tag220" contextRef="C1">C010308</ferc:CompanyIdentifier>
  <ferc:ReportYear id="Tag221" contextRef="C1" unitRef="Pure" decimals="0">2026</ferc:ReportYear>
  <ferc:ReportPeriod id="Tag222" contextRef="C1">Q1</ferc:ReportPeriod>
  <ferc:AddressOfPrincipalOfficeAtEndOfPeriod id="Tag223" contextRef="C1">333 Clay Street, Suite 1600, Houston, Texas, 77002</ferc:AddressOfPrincipalOfficeAtEndOfPeriod>
  <ferc:NameOfContactPerson id="Tag224" contextRef="C1">Christina Willmore</ferc:NameOfContactPerson>
  <ferc:TitleOfContactPerson id="Tag225" contextRef="C1">Accounting Manager</ferc:TitleOfContactPerson>
  <ferc:AddressOfContactPerson id="Tag226" contextRef="C1">333 Clay Street, Suite 1600, Houston, Texas, 77002</ferc:AddressOfContactPerson>
  <ferc:TelephoneOfContactPerson id="Tag227" contextRef="C1">713-993-5488</ferc:TelephoneOfContactPerson>
  <ferc:SubmissionType id="Tag228" contextRef="C1">O</ferc:SubmissionType>
  <ferc:ReportDate id="Tag229" contextRef="C1">2026-06-05</ferc:ReportDate>
  <ferc:VendorName id="Tag230" contextRef="C1">IRIS Carbon</ferc:VendorName>
  <link:footnoteLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link">
    <link:loc xlink:type="locator" xlink:label="value4" xlink:href="#Tag56" />
    <link:loc xlink:type="locator" xlink:label="value3" xlink:href="#Tag210" />
    <link:footnote xlink:type="resource" xml:lang="en-US" xlink:label="footnote3" xlink:role="http://www.xbrl.org/2003/role/footnote" xmlns="http://www.w3.org/1999/xhtml">
      <xhtml:div xmlns="http://www.w3.org/1999/xhtml">
        <xhtml:p>Current year distributions were $48,991,000, which exceeded the positive balance in unappropriated retained income by $2,830,282 as of March 31, 2026. Such excess was recorded against additional paid-in capital.</xhtml:p>
      </xhtml:div>
    </link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:from="value3" xlink:to="footnote3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" order="3" />
    <link:footnote xlink:type="resource" xml:lang="en-US" xlink:label="footnote4" xlink:role="http://www.xbrl.org/2003/role/footnote" xmlns="http://www.w3.org/1999/xhtml">
      <xhtml:div xmlns="http://www.w3.org/1999/xhtml">
        <xhtml:p>Current year distributions were $48,991,000, which exceeded the positive balance in unappropriated retained income by $2,830,282 as of March 31, 2026. Such excess was recorded against additional paid-in capital.</xhtml:p>
      </xhtml:div>
    </link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:from="value4" xlink:to="footnote4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" order="4" />
  </link:footnoteLink>
</xbrli:xbrl>
