Summary
MPLX LP (MPLX) announced significant leadership changes through an 8-K filing on May 13, 2024, detailing executive transitions effective August 1, 2024. Maryann T. Mannen will assume the role of President and Chief Executive Officer, becoming the principal executive officer, succeeding Michael J. Hennigan. Ms. Mannen brings extensive experience from her current and prior roles at Marathon Petroleum Corporation (MPC), the indirect owner of MPLX GP, including her tenure as President and CFO of MPC. Concurrently, Michael J. Hennigan will transition to the newly created role of Executive Chairman of MPLX GP's board of directors, while Christopher A. Helms will continue as Lead Director. These changes reflect a strategic succession plan for the partnership's leadership.
Key Highlights
- 1Effective August 1, 2024, Maryann T. Mannen appointed President and CEO of MPLX LP, succeeding Michael J. Hennigan.
- 2Michael J. Hennigan to transition to Executive Chairman of MPLX GP's board of directors.
- 3Ms. Mannen's appointment follows her significant executive roles at Marathon Petroleum Corporation (MPC), MPLX's indirect parent.
- 4The leadership transition is part of a planned succession for MPLX's management.
- 5Compensation adjustments for the new roles are not yet determined and will be disclosed via an amendment.
- 6MPLX LP relies on personnel contracted from MPC or its affiliates for its operations and management.