MPLX Appoints Maryann T. Mannen as Chairperson of the Board Effective in 2026

MPLX Elects New Board Chairman

MPLX LP, a prominent player in the midstream energy sector, has made a significant leadership change with the election of Maryann T. Mannen as Chairman of the Board, effective January 1, 2026. This transition marks a pivotal moment for the company as it continues to navigate the complexities of the energy market. Mannen, who currently serves as the president and CEO, will take on this additional role following the retirement of Michael J. Hennigan, the long-serving Executive Chairman.

A New Era for MPLX

In a statement released by MPLX, the board of directors expressed their enthusiasm for Mannen’s new position. Chris Helms, the independent lead director, conveyed the collective sentiments of the board, congratulating Mannen on her new leadership role while also thanking Hennigan for his years of dedicated service.

Hennigan has been a guiding force at MPLX since April 2020, holding the Chairman position while also serving as CEO from November 2019 to August 2024. His leadership has been instrumental in steering the company during challenging times. Mannen's ascension signifies not only continuity within the executive team but also a renewed commitment to the company's vision and goals.

Mannen’s Background and Vision

Maryann T. Mannen has been with MPLX since February 2021, when she joined the board of directors. Her previous role as CEO began in August 2024, paving the way for her to transition into this more prominent leadership role. With her extensive experience in corporate governance and energy sector operations, Mannen is poised to drive MPLX to new heights.

Under Mannen’s leadership, MPLX aims to strengthen its operational efficiencies and enhance its portfolio of midstream assets, including a vast network of pipelines, terminals, and storage facilities that contribute to the company’s standing in the energy market.

The Future of MPLX

As she prepares to step into her new position, Mannen's vision will likely focus on innovation and adapting to the ever-changing energy landscape. The company is known for its dedication to sustainable practices and operational excellence, which will continue to be at the forefront of its business strategy.

The transition is noted to bring both challenges and opportunities for MPLX. Energy markets are currently experiencing a range of pressures from economic shifts, regulatory changes, and technological advancements. However, with Mannen's strong track record and strategic insight, MPLX is well-positioned to face these challenges head-on.

In conclusion, the elevation of Maryann Mannen reflects a strategic decision aimed at positioning MPLX for future success. As the company approaches a new chapter under her leadership, stakeholders are optimistic about the direction MPLX will take as it advances in the energy sector.

For more information about MPLX and their latest developments, visit www.MPLX.com.