<SEC-DOCUMENT>0001209191-18-054164.txt : 20181003
<SEC-HEADER>0001209191-18-054164.hdr.sgml : 20181003
<ACCEPTANCE-DATETIME>20181003210823
ACCESSION NUMBER:		0001209191-18-054164
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20181001
FILED AS OF DATE:		20181003
DATE AS OF CHANGE:		20181003

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Rucker Kim K.W.
		CENTRAL INDEX KEY:			0001430329

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35054
		FILM NUMBER:		181106801

	MAIL ADDRESS:	
		STREET 1:		KRAFT FOODS GROUP, INC.
		STREET 2:		THREE LAKES DRIVE
		CITY:			NORTHFIELD
		STATE:			IL
		ZIP:			60093

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Marathon Petroleum Corp
		CENTRAL INDEX KEY:			0001510295
		STANDARD INDUSTRIAL CLASSIFICATION:	PETROLEUM REFINING [2911]
		IRS NUMBER:				271284632
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		539 SOUTH MAIN STREET
		CITY:			FINDLAY
		STATE:			OH
		ZIP:			45840-3229
		BUSINESS PHONE:		419-421-2159

	MAIL ADDRESS:	
		STREET 1:		539 SOUTH MAIN STREET
		CITY:			FINDLAY
		STATE:			OH
		ZIP:			45840-3229
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
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    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2018-10-01</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001510295</issuerCik>
        <issuerName>Marathon Petroleum Corp</issuerName>
        <issuerTradingSymbol>MPC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001430329</rptOwnerCik>
            <rptOwnerName>Rucker Kim K.W.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O MARATHON PETROLEUM CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>539 S. MAIN STREET</rptOwnerStreet2>
            <rptOwnerCity>FINDLAY</rptOwnerCity>
            <rptOwnerState>OH</rptOwnerState>
            <rptOwnerZipCode>45840</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2018-10-01</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionTimeliness>
                <value></value>
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            <transactionAmounts>
                <transactionShares>
                    <value>109090</value>
                </transactionShares>
                <transactionPricePerShare>
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                    <footnoteId id="F2"/>
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                    <value>A</value>
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                <sharesOwnedFollowingTransaction>
                    <value>109090</value>
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                <directOrIndirectOwnership>
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                <value></value>
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                <transactionShares>
                    <value>409.438</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
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                <sharesOwnedFollowingTransaction>
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        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
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            <transactionDate>
                <value>2018-10-01</value>
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            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionTimeliness>
                <value></value>
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            <transactionAmounts>
                <transactionShares>
                    <value>4072</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>82.43</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>105427.438</value>
                    <footnoteId id="F4"/>
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    <footnotes>
        <footnote id="F1">Received in connection with the merger of Mahi Inc., a wholly owned subsidiary of the Issuer, with and into Andeavor on October 1, 2018, with Andeavor as the surviving entity (the &quot;Merger&quot;). On the effective date of the Merger, the closing price of Issuer common stock was $82.43 per share.</footnote>
        <footnote id="F2">Includes 61,446 Issuer restricted stock units received upon conversion of 18,902 Andeavor market stock unit awards.  The Andeavor awards were converted in the Merger based on the number of shares of Andeavor common stock that would have been issued pursuant to such market stock unit awards based on actual performance through the Merger multiplied by 1.87 and rounded down to the nearest whole number.</footnote>
        <footnote id="F3">Includes 47,644 Issuer restricted stock units received upon conversion of 17,779 Andeavor performance share awards.  The Andeavor awards were converted in the Merger based on the number of shares of Andeavor common stock that would have been issued pursuant to such performance share awards based on actual performance through the Merger multiplied by 1.87 and rounded down to the nearest whole number.</footnote>
        <footnote id="F4">All reported amounts are estimated as of October 3, 2018 based on preliminary information with respect to the Merger. Final amounts will be reported in a subsequent filing.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Molly R. Benson, Attorney-in-Fact for Kim K.W. Rucker</signatureName>
        <signatureDate>2018-10-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
