<SEC-DOCUMENT>0000950170-25-050738-index.html : 20250403
<SEC-HEADER>0000950170-25-050738.hdr.sgml : 20250403
<ACCEPTANCE-DATETIME>20250403180619
ACCESSION NUMBER:		0000950170-25-050738
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250401
FILED AS OF DATE:		20250403
DATE AS OF CHANGE:		20250403

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Peiffer Garry L.
		CENTRAL INDEX KEY:			0001521094
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35714
		FILM NUMBER:		25811331

	MAIL ADDRESS:	
		STREET 1:		C/O MARATHON PETROLEUM CORPORATION
		STREET 2:		539 S. MAIN STREET
		CITY:			FINDLAY
		STATE:			OH
		ZIP:			45840

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MPLX LP
		CENTRAL INDEX KEY:			0001552000
		STANDARD INDUSTRIAL CLASSIFICATION:	PIPE LINES (NO NATURAL GAS) [4610]
		ORGANIZATION NAME:           	01 Energy & Transportation
		EIN:				270005456
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		200 E. HARDIN STREET
		CITY:			FINDLAY
		STATE:			OH
		ZIP:			45840
		BUSINESS PHONE:		(419) 422-2121

	MAIL ADDRESS:	
		STREET 1:		200 E. HARDIN STREET
		CITY:			FINDLAY
		STATE:			OH
		ZIP:			45840
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>ownership.xml
<DESCRIPTION>4
<TEXT>
Document 1 - file: ownership.html

Document 1 - RAW XML: ownership.xml

</DOCUMENT>
</SEC-DOCUMENT>