<SEC-DOCUMENT>0001510295-19-000104-index.html : 20190802
<SEC-HEADER>0001510295-19-000104.hdr.sgml : 20190802
<ACCEPTANCE-DATETIME>20190802150755
ACCESSION NUMBER:		0001510295-19-000104
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20190802
DATE AS OF CHANGE:		20190802
GROUP MEMBERS:		ANDEAVOR LLC
GROUP MEMBERS:		GIANT INDUSTRIES, INC.
GROUP MEMBERS:		MPC INVESTMENT LLC
GROUP MEMBERS:		MPLX GP LLC
GROUP MEMBERS:		MPLX LOGISTICS HOLDINGS LLC
GROUP MEMBERS:		TESORO ALASKA CO LLC
GROUP MEMBERS:		TESORO LOGISTICS GP, LLC
GROUP MEMBERS:		TESORO REFINING & MARKETING CO LLC
GROUP MEMBERS:		WESTERN REFINING SOUTHWEST, INC.
GROUP MEMBERS:		WESTERN REFINING, INC.

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MPLX LP
		CENTRAL INDEX KEY:			0001552000
		STANDARD INDUSTRIAL CLASSIFICATION:	PIPE LINES (NO NATURAL GAS) [4610]
		IRS NUMBER:				270005456
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-87226
		FILM NUMBER:		19995691

	BUSINESS ADDRESS:	
		STREET 1:		200 E. HARDIN STREET
		CITY:			FINDLAY
		STATE:			OH
		ZIP:			45840
		BUSINESS PHONE:		(419) 421-2159

	MAIL ADDRESS:	
		STREET 1:		200 E. HARDIN STREET
		CITY:			FINDLAY
		STATE:			OH
		ZIP:			45840

FILED BY:		

	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

	FILING VALUES:
		FORM TYPE:		SC 13D/A

	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>SC 13D/A
<SEQUENCE>1
<FILENAME>mpcsc13daamend12.htm
<DESCRIPTION>SCHEDULE 13D/A (AMENDMENT NO. 12)
<TEXT>
Document 1 - file: mpcsc13daamend12.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>mpcmplxex991.htm
<DESCRIPTION>EXHIBIT 99.1
<TEXT>
Document 2 - file: mpcmplxex991.htm

</DOCUMENT>
</SEC-DOCUMENT>