Item 8.01 Other Events.

On April 21, 2022, Michael J. Hennigan, Chairman, President and Chief Executive Officer of MPLX GP LLC issued a letter to colleagues and unitholders informing them of a recently diagnosed medical condition. A copy of his letter is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

Item 9.01 Financial Statements and Exhibits.




(d) Exhibits.




Exhibit Number                                   Description

  99.1                Letter from Michael J. Hennigan, Chairman, President and Chief
                      Executive Officer of MPLX GP LLC
104                   Cover Page Interactive Data File (embedded within the Inline XBRL
                      document)

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