Item 5.02   Departure of Directors or Certain Officers; Election of Directors;
            Appointment of Certain Officers; Compensatory Arrangements of Certain
            Officers.

On April 20, 2021, Michael L. Beatty retired from his service as a member of the board of directors of MPLX GP LLC, a Delaware limited liability company (the "General Partner") and the general partner of MPLX LP, a Delaware limited partnership ("MPLX"), as required by the mandatory retirement policy set forth in the Governance Principles of MPLX and the General Partner.

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