On January 3, 2017, MPLX LP (MPLX) and Marathon Petroleum
Corporation will hold a webcast and conference call (the
Presentation) to discuss updates to previously announced
strategic actions. The slides attached as Exhibit 99.1 to this
Current Report on Form 8-K are to be displayed during the
Presentation and are incorporated herein by reference. The slides
will also be available on the MPLX investor relations website at
http://ir.mplx.com commencing with the live webcast of the
Presentation beginning at 10 a.m. EST, on Tuesday, January 3,
2017. Information on or accessible through the MPLX investor
relations website is not, and shall not be deemed to be, part of
this Current Report on Form 8-K.

The information in this Current Report on Form 8-K is being
furnished to Item 7.01 and shall not be deemed to be filed for
purposes of Section 18 of the Securities Exchange Act of 1934, as
amended, or otherwise subject to the liabilities of that section.

(d) Exhibits.