<SEC-DOCUMENT>0001104659-14-037029.txt : 20140509
<SEC-HEADER>0001104659-14-037029.hdr.sgml : 20140509
<ACCEPTANCE-DATETIME>20140509160154
ACCESSION NUMBER:		0001104659-14-037029
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20140507
FILED AS OF DATE:		20140509
DATE AS OF CHANGE:		20140509

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			EQT Midstream Partners, LP
		CENTRAL INDEX KEY:			0001540947
		STANDARD INDUSTRIAL CLASSIFICATION:	NATURAL GAS TRANSMISSION [4922]
		IRS NUMBER:				371661577
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		625 LIBERTY AVENUE, SUITE 1700
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15222
		BUSINESS PHONE:		412-553-5700

	MAIL ADDRESS:	
		STREET 1:		625 LIBERTY AVENUE, SUITE 1700
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15222

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			EQT Corp
		CENTRAL INDEX KEY:			0000033213
		STANDARD INDUSTRIAL CLASSIFICATION:	CRUDE PETROLEUM & NATURAL GAS [1311]
		STATE OF INCORPORATION:			PA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35574
		FILM NUMBER:		14828997

	BUSINESS ADDRESS:	
		STREET 1:		625 LIBERTY AVENUE
		STREET 2:		SUITE 1700
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15222
		BUSINESS PHONE:		4125535700

	MAIL ADDRESS:	
		STREET 1:		625 LIBERTY AVENUE
		STREET 2:		SUITE 1700
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15222

	FORMER NAME:	
		FORMER CONFORMED NAME:	EQT Corp /PA/
		DATE OF NAME CHANGE:	20090206

	FORMER NAME:	
		FORMER CONFORMED NAME:	EQUITABLE RESOURCES INC /PA/
		DATE OF NAME CHANGE:	19920703

	FORMER NAME:	
		FORMER CONFORMED NAME:	EQUITABLE GAS CO
		DATE OF NAME CHANGE:	19841120

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			EQT Investments Holdings, LLC
		CENTRAL INDEX KEY:			0001552977
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35574
		FILM NUMBER:		14828994

	BUSINESS ADDRESS:	
		STREET 1:		101 CONVENTION CENTER DRIVE, SUITE 850
		CITY:			LAS VEGAS
		STATE:			NV
		ZIP:			89109
		BUSINESS PHONE:		(702) 598-3738

	MAIL ADDRESS:	
		STREET 1:		101 CONVENTION CENTER DRIVE, SUITE 850
		CITY:			LAS VEGAS
		STATE:			NV
		ZIP:			89109

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			EQT Gathering, LLC
		CENTRAL INDEX KEY:			0001607403
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35574
		FILM NUMBER:		14828991

	BUSINESS ADDRESS:	
		STREET 1:		625 LIBERTY AVENUE, SUITE 1700
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15222
		BUSINESS PHONE:		412-553-5700

	MAIL ADDRESS:	
		STREET 1:		625 LIBERTY AVENUE, SUITE 1700
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15222

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			EQT Gathering Holdings, LLC
		CENTRAL INDEX KEY:			0001607404
		STATE OF INCORPORATION:			PA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35574
		FILM NUMBER:		14828992

	BUSINESS ADDRESS:	
		STREET 1:		625 LIBERTY AVENUE, SUITE 1700
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15222
		BUSINESS PHONE:		412-553-5700

	MAIL ADDRESS:	
		STREET 1:		625 LIBERTY AVENUE, SUITE 1700
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15222

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			EQT Production Co
		CENTRAL INDEX KEY:			0001607430
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35574
		FILM NUMBER:		14828993

	BUSINESS ADDRESS:	
		STREET 1:		625 LIBERTY AVENUE, SUITE 1700
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15222
		BUSINESS PHONE:		412-553-5700

	MAIL ADDRESS:	
		STREET 1:		625 LIBERTY AVENUE, SUITE 1700
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15222

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			EQT Midstream Investments, LLC
		CENTRAL INDEX KEY:			0001552976
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35574
		FILM NUMBER:		14828996

	BUSINESS ADDRESS:	
		STREET 1:		625 LIBERTY AVENUE
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15222
		BUSINESS PHONE:		(412) 553-5700

	MAIL ADDRESS:	
		STREET 1:		625 LIBERTY AVENUE
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15222
</SEC-HEADER>
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<TYPE>4
<SEQUENCE>1
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<DESCRIPTION>4
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    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2014-05-07</periodOfReport>

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    <issuer>
        <issuerCik>0001540947</issuerCik>
        <issuerName>EQT Midstream Partners, LP</issuerName>
        <issuerTradingSymbol>EQM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000033213</rptOwnerCik>
            <rptOwnerName>EQT Corp</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>625 LIBERTY AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 1700</rptOwnerStreet2>
            <rptOwnerCity>PITTSBURGH</rptOwnerCity>
            <rptOwnerState>PA</rptOwnerState>
            <rptOwnerZipCode>15222</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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        <reportingOwnerRelationship>
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            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>Director by deputization</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001552976</rptOwnerCik>
            <rptOwnerName>EQT Midstream Investments, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>625 LIBERTY AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>PITTSBURGH</rptOwnerCity>
            <rptOwnerState>PA</rptOwnerState>
            <rptOwnerZipCode>15222</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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            <isDirector>0</isDirector>
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            <isOther>1</isOther>
            <otherText>Director by deputization</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001552977</rptOwnerCik>
            <rptOwnerName>EQT Investments Holdings, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>101 CONVENTION CENTER DRIVE, SUITE 850</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LAS VEGAS</rptOwnerCity>
            <rptOwnerState>NV</rptOwnerState>
            <rptOwnerZipCode>89109</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>Director by deputization</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001607430</rptOwnerCik>
            <rptOwnerName>EQT Production Co</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>625 LIBERTY AVENUE, SUITE 1700</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>PITTSBURGH</rptOwnerCity>
            <rptOwnerState>PA</rptOwnerState>
            <rptOwnerZipCode>15222</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>Director by deputization</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001607404</rptOwnerCik>
            <rptOwnerName>EQT Gathering Holdings, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>625 LIBERTY AVENUE, SUITE 1700</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>PITTSBURGH</rptOwnerCity>
            <rptOwnerState>PA</rptOwnerState>
            <rptOwnerZipCode>15222</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>Director by deputization</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001607403</rptOwnerCik>
            <rptOwnerName>EQT Gathering, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>625 LIBERTY AVENUE, SUITE 1700</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>PITTSBURGH</rptOwnerCity>
            <rptOwnerState>PA</rptOwnerState>
            <rptOwnerZipCode>15222</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>Director by deputization</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Units</value>
            </securityTitle>
            <transactionDate>
                <value>2014-05-07</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
                <footnoteId id="F2"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>516050</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3959952</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnotes</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">This Form 4 is being filed jointly by EQT Corporation (EQT), EQT Midstream Investments, LLC (Midstream Investments), EQT Investments Holdings, LLC (Investments Holdings), EQT Production Company (EQT Production), EQT Gathering Holdings, LLC (Gathering Holdings) and EQT Gathering, LLC (EQT Gathering) in connection with the sale of certain midstream assets by EQT to EQT Midstream Partners, LP (Issuer) pursuant to that certain Contribution Agreement by and among the Issuer, EQT Midstream Services, LLC, (General Partner), EQM Gathering Opco, LLC and EQT Gathering, dated April 30, 2014, in which the Issuer acquired certain midstream assets for aggregate consideration of approximately $1.18 billion, consisting of (i) a $1.12 billion cash payment, (ii) 516,050 common units of the Issuer issued to Midstream Investments and (iii) 262,828 general partner units of the Issuer issued to the General Partner.</footnote>
        <footnote id="F2">The common units of the Issuer are owned directly by Midstream Investments. EQT directly owns 100% of the outstanding membership interests of Investments Holdings.  Investments Holdings directly owns 100% of the common stock of EQT Production. EQT Production owns 100% of the membership interests of Gathering Holdings. Gathering Holdings owns 100% of the membership interests of EQT Gathering. EQT Gathering directly owns 100% of the membership interests of Midstream Investments. EQT, Investments Holdings, EQT Production, Gathering Holdings and EQT Gathering  may therefore be deemed to beneficially own common units of the Issuer owned directly by Midstream Investments.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Philip P. Conti, Senior Vice President and CFO of EQT Corporation</signatureName>
        <signatureDate>2014-05-07</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Randall L. Crawford, President of EQT Gathering, LLC, the sole member of EQT Midstream Investments, LLC</signatureName>
        <signatureDate>2014-05-07</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Joshua C. Miller, Vice President of EQT Investments Holdings, LLC</signatureName>
        <signatureDate>2014-05-07</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Steven T. Schlotterbeck, President of EQT Production Company</signatureName>
        <signatureDate>2014-05-07</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Randall L. Crawford, President of EQT Gathering, LLC</signatureName>
        <signatureDate>2014-05-07</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Randall L. Crawford, President of EQT Gathering Holdings, LLC</signatureName>
        <signatureDate>2014-05-07</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</SEC-DOCUMENT>
