01—Abstract
Summary
Summary of the 8-K filed December 18, 2025. Cited figures are marked; the original filing is the authoritative source.
MPLX LP announced a change to the General Partner's Board of Directors, effective January 19, 2026.
Maria A. Khoury has been elected as a new director. Ms. Khoury's appointment is directly linked to her upcoming role as Executive Vice President and Chief Financial Officer at Marathon Petroleum Corporation (MPC), the General Partner's owner and a majority unitholder of MPLX.
Her directorship is a management role stemming from her MPC position and she will not receive separate compensation for board service. This appointment coincides with the departure of John J. Quaid from the Board.
The total number of directors on the Board will remain at ten. Investors should note that Ms. Khoury's background as CFO of MPC brings financial expertise to the Board, which could influence strategic decisions related to MPLX's operations and capital allocation, particularly given MPC's significant ownership stake.
02—Key points
Key Highlights
- MPLX LP's General Partner Board of Directors to add Maria A. Khoury, effective January 19, 2026.
- Ms. Khoury's appointment is tied to her new role as EVP and CFO of Marathon Petroleum Corporation (MPC).
- Ms. Khoury will serve as a management director due to her position at MPC.
- No separate compensation will be provided to Ms. Khoury for her board service.
- John J. Quaid will depart from the Board on the same effective date.
- The size of the Board of Directors will remain at ten members.
- No disclosable arrangements, understandings, family relationships, or direct/indirect interests exist for Ms. Khoury concerning her election.
03—Questions
Frequently Asked Questions
Who is Maria A. Khoury and why is she joining the MPLX Board?
Maria A. Khoury is being elected to the MPLX General Partner's Board of Directors to fill a management director position. Her appointment is effective January 19, 2026, coinciding with her start date as Executive Vice President and Chief Financial Officer at Marathon Petroleum Corporation (MPC), the parent company of MPLX's General Partner and a majority unitholder.
Will Maria A. Khoury receive additional compensation for serving on the MPLX Board?
No, Ms. Khoury will not receive separate compensation for her services as a member of the Board. As she will be an employee of MPC, her board position is considered part of her role within the MPC organization.
Is there any conflict of interest or undisclosed relationship with the new director?
The filing explicitly states that there are no arrangements or understandings for her election other than her employment with MPC. There are no reported family relationships with existing directors or officers, and she has no direct or indirect interest in any transaction requiring disclosure under Item 404(a) of Regulation S-K.
Who is John J. Quaid and why is he leaving the Board?
John J. Quaid is a departing member of the MPLX General Partner's Board of Directors. He will cease his service on January 19, 2026, the same date Ms. Khoury's appointment becomes effective. The filing does not specify the reasons for Mr. Quaid's departure.
04—Continue