Marathon Petroleum Corporation filed an 8-K on October 29, 2026, announcing the election of David E. Constable to its board of directors, effective March 1, 2027.

Key Highlights

  • New director elected: David E. Constable has been elected to Marathon Petroleum's board, effective March 1, 2027.
  • Board size: Constable's election will bring the MPC board to 11 directors, according to the filing.
  • Prior role: Constable most recently served as Chairman and CEO of Fluor Corporation.
  • Previous CEO tenure: Constable led Sasol Ltd. as CEO from 2011 to 2016, followed by three years as a senior advisor to Cerberus Capital Management LP.
  • Current board membership: Constable is a member of the board of ABB Ltd and previously served on the boards of Anadarko Petroleum and Rio Tinto.
  • Education: Constable holds a civil engineering degree from the University of Alberta and completed programs at Thunderbird's International Management Program and Wharton Business School's Advanced Management Program.

Constable Brings Decades of Energy and Engineering Experience to Marathon Board

Marathon Petroleum Corporation (NYSE:MPC), headquartered in Findlay, Ohio, announced on October 29, 2026, that David E. Constable has been elected to its board of directors. According to the filing, his appointment takes effect March 1, 2027, and will expand the board from 10 to 11 directors.

The filing describes Constable as having "over four decades of global leadership experience in the energy, chemicals, engineering and construction sectors." His most recent role was Chairman and CEO of Fluor Corporation. Prior to that, the filing states he served as CEO of global chemical and energy company Sasol Ltd. from 2011 to 2016, and subsequently spent three years as a senior advisor to Cerberus Capital Management LP. He currently sits on the board of ABB Ltd and previously served on the boards of Anadarko Petroleum and Rio Tinto.

Marathon Chairman, President and CEO Maryann Mannen was quoted in the filing as saying, "We are fortunate to have David joining as a member of our Board of Directors." Lead Director John Surma added, according to the filing, that "David's record of value creation and successful management in complex industries will be a great complement to the Board." The filing also notes that Constable is a longstanding member of the U.S. Business Council.

What Was Disclosed

Marathon Petroleum disclosed the election of David E. Constable to its board of directors, effective March 1, 2027, bringing total board membership to 11 directors. The filing summarized his background in energy, chemicals, engineering, and construction leadership roles.