<SEC-DOCUMENT>0001209191-21-005727.txt : 20210127
<SEC-HEADER>0001209191-21-005727.hdr.sgml : 20210127
<ACCEPTANCE-DATETIME>20210127172218
ACCESSION NUMBER:		0001209191-21-005727
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20210125
FILED AS OF DATE:		20210127
DATE AS OF CHANGE:		20210127

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Mannen Maryann T.
		CENTRAL INDEX KEY:			0001408964

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35054
		FILM NUMBER:		21560980

	MAIL ADDRESS:	
		STREET 1:		C/O TECHNIPFMC PLC
		STREET 2:		11740 KATY FREEWAY, ENERGY TOWER 3
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77079

	FORMER NAME:	
		FORMER CONFORMED NAME:	Seaman Maryann T.
		DATE OF NAME CHANGE:	20070806

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>3
<SEQUENCE>1
<FILENAME>doc3.xml
<DESCRIPTION>FORM 3 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2021-01-25</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001408964</rptOwnerCik>
            <rptOwnerName>Mannen Maryann T.</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>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Exec VP &amp; Chief Fin Ofc</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <footnotes></footnotes>

    <remarks>Executive Vice President and Chief Financial Officer

Exhibit List: Exhibit 24 - Power of Attorney</remarks>

    <ownerSignature>
        <signatureName>/s/ Molly R. Benson, Attorney-in-Fact for Maryann T. Mannen</signatureName>
        <signatureDate>2021-01-27</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24.3_958079
<SEQUENCE>2
<FILENAME>poa.txt
<DESCRIPTION>POA DOCUMENT
<TEXT>
MPC POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that the undersigned hereby constitutes and
appoints Molly R. Benson, Jodi E. Baker, Shane T. Pfleiderer, Elisa D. Watts and
Joel M. Williams (the "Attorneys"), and each of them, as the true and lawful
attorney or attorneys-in-fact, with full power of substitution and revocation,
for the undersigned and in the name, place and stead of the undersigned, in any
and all capacities, to execute, on behalf of the undersigned, (1) any and all
notices pursuant to Rule 144 under the Securities Act of 1933 with respect to
sales of shares of common stock, par value $0.01 per share, or other securities,
of Marathon Petroleum Corporation, including, without limitation, all notices of
proposed sale on Form 144, and (2) any and all statements or reports under
Section 16 of the Securities Exchange Act of 1934 with respect to the beneficial
ownership of common stock, par value $0.01 per share, or other securities, of
Marathon Petroleum Corporation, including, without limitation, all initial
statements of beneficial ownership on Form 3, all statements of changes in
beneficial ownership on Form 4, all annual statements of beneficial ownership on
Form 5 and all successor or similar forms, to be filed with the Securities and
Exchange Commission, to execute any and all amendments or supplements to any
such notices, statements or reports, and to file the same, with all exhibits
thereto, and other documents in connection therewith, with the Securities and
Exchange Commission, granting to said Attorney or Attorneys-in-fact, and each of
them, full power and authority to do so and perform each and every act and thing
requisite and necessary to be done in and about the premises (including, without
limitation, completing, executing, delivering and filing a Form ID to apply for
electronic filing codes), as fully and to all intents and purposes as the
undersigned might or could do in person, and hereby ratifying and confirming all
that said Attorney or Attorneys-in-fact, or any of them, or their substitute or
substitutes, may lawfully do or cause to be done by virtue hereof.  The
undersigned acknowledges that the foregoing Attorneys-in-fact, and each of them,
in serving in such capacity at the request of the undersigned, are not assuming
any of the responsibilities of the undersigned to comply with Section 16 of the
Securities Exchange Act of 1934 or any other legal requirement.  This Power of
Attorney shall remain in effect until revoked in writing by the undersigned.


/s/ Maryann T. Mannen
Maryann T. Mannen


Date:  January 25, 2021


</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
