<SEC-DOCUMENT>0001172661-19-000500.txt : 20190214
<SEC-HEADER>0001172661-19-000500.hdr.sgml : 20190214
<ACCEPTANCE-DATETIME>20190214073818
ACCESSION NUMBER:		0001172661-19-000500
CONFORMED SUBMISSION TYPE:	13F-HR
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20181231
FILED AS OF DATE:		20190214
DATE AS OF CHANGE:		20190214
EFFECTIVENESS DATE:		20190214

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			First Reserve GP XI, Inc.
		CENTRAL INDEX KEY:			0001477477
		IRS NUMBER:				205069663
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		13F-HR
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	028-14890
		FILM NUMBER:		19600746

	BUSINESS ADDRESS:	
		STREET 1:		290 HARBOR DRIVE
		STREET 2:		FIFTH FLOOR
		CITY:			STAMFORD
		STATE:			CT
		ZIP:			06902
		BUSINESS PHONE:		203-661-6601

	MAIL ADDRESS:	
		STREET 1:		290 HARBOR DRIVE
		STREET 2:		FIFTH FLOOR
		CITY:			STAMFORD
		STATE:			CT
		ZIP:			06902
</SEC-HEADER>
<DOCUMENT>
<TYPE>13F-HR
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
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  <headerData>
    <submissionType>13F-HR</submissionType>
    <filerInfo>
      <liveTestFlag>LIVE</liveTestFlag>
      <flags>
        <confirmingCopyFlag>false</confirmingCopyFlag>
        <returnCopyFlag>true</returnCopyFlag>
        <overrideInternetFlag>false</overrideInternetFlag>
      </flags>
      <filer>
        <credentials>
          <cik>0001477477</cik>
          <ccc>XXXXXXXX</ccc>
        </credentials>
      </filer>
      <periodOfReport>12-31-2018</periodOfReport>
    </filerInfo>
  </headerData>
  <formData>
    <coverPage>
      <reportCalendarOrQuarter>12-31-2018</reportCalendarOrQuarter>
      <isAmendment>false</isAmendment>
      <filingManager>
        <name>First Reserve GP XI, Inc.</name>
        <address>
          <ns1:street1>290 Harbor Drive</ns1:street1>
          <ns1:street2>Fifth Floor</ns1:street2>
          <ns1:city>Stamford</ns1:city>
          <ns1:stateOrCountry>CT</ns1:stateOrCountry>
          <ns1:zipCode>06902</ns1:zipCode>
        </address>
      </filingManager>
      <reportType>13F HOLDINGS REPORT</reportType>
      <form13FFileNumber>028-14890</form13FFileNumber>
      <provideInfoForInstruction5>Y</provideInfoForInstruction5>
      <additionalInformation>First Reserve may be deemed to have investment discretion over an aggregate of 17,469,911 common units of CRESTWOOD EQUITY PARTNERS LP.</additionalInformation>
    </coverPage>
    <signatureBlock>
      <name>Anne E. Gold</name>
      <title>Chief Compliance Officer, Secretary</title>
      <phone>203-625-2536</phone>
      <signature>/s/ Anne E. Gold</signature>
      <city>Greenwich</city>
      <stateOrCountry>CT</stateOrCountry>
      <signatureDate>02-14-2019</signatureDate>
    </signatureBlock>
    <summaryPage>
      <otherIncludedManagersCount>2</otherIncludedManagersCount>
      <tableEntryTotal>1</tableEntryTotal>
      <tableValueTotal>485386</tableValueTotal>
      <otherManagers2Info>
        <otherManager2>
          <sequenceNumber>1</sequenceNumber>
          <otherManager>
            <cik>0001477478</cik>
            <form13FFileNumber>028-14889</form13FFileNumber>
            <name>First Reserve GP XI, L.P.</name>
          </otherManager>
        </otherManager2>
        <otherManager2>
          <sequenceNumber>2</sequenceNumber>
          <otherManager>
            <cik>0000908428</cik>
            <form13FFileNumber>028-14883</form13FFileNumber>
            <name>MACAULAY WILLIAM E</name>
          </otherManager>
        </otherManager2>
      </otherManagers2Info>
    </summaryPage>
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</TEXT>
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<DOCUMENT>
<TYPE>INFORMATION TABLE
<SEQUENCE>2
<FILENAME>infotable.xml
<TEXT>
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<?xml version="1.0" ?>
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  <infoTable>
    <nameOfIssuer>CRESTWOOD EQUITY PARTNERS LP</nameOfIssuer>
    <titleOfClass>UNIT LTD PARTNER</titleOfClass>
    <cusip>226344208</cusip>
    <value>485386</value>
    <shrsOrPrnAmt>
      <sshPrnamt>17391112</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>OTR</investmentDiscretion>
    <otherManager>1,2</otherManager>
    <votingAuthority>
      <Sole>0</Sole>
      <Shared>17391112</Shared>
      <None>0</None>
    </votingAuthority>
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