Marathon board elects new chair

FINDLAY — The Marathon Petroleum Corp. Board of Directors has elected Maryann Mannen, president, CEO and board member, as chairperson of the board, effective Jan. 1, 2026. Mannen will assume the role of chairperson in addition to her current responsibilities. Mannen succeeds Michael Hennigan, who will retire as executive chairman and as a member of the board of directors on Jan. 1, 2026. John Surma will continue to serve as independent lead director of the board. "We congratulate Maryann as our new chairman of the board," Surma said in a release from the company. "We are confident in Maryann's leadership and enthusiastic about our company's direction. We thank Mike for his exemplary service during a period of significant value creation." "Mike's continued leadership and remarkable achievements have been pivotal for MPC's positive trajectory," Mannen said. "It's an honor to succeed Mike as chairman of the board and to have the opportunity to build on that legacy of leadership and success, taking our performance to the next level. I appreciate the trust our board has placed in me as we look ahead to MPC's future." Hennigan led MPC as CEO beginning in March 2020 and transitioned from CEO to executive chairman in August 2024. Mannen has served as CEO since August 2024, after previously serving as president from January 2024, and as executive vice president and chief financial officer between January 2021 and January 2024.