# Michael Hennigan

> Michael J. Hennigan is an energy executive and corporate director whose career began at Sunoco’s Marcus Hook refinery in 1981. He led Sunoco Logistics, MPLX and Marathon Petroleum, overseeing decisions including the Speedway sale and refinery conversions. After retiring as executive chairman of Marathon Petroleum and MPLX in December 2025, he joined the board of Kayne Anderson Energy Infrastructure Fund in May 2026. He also serves on the boards of Nutrien and The Cigna Group.

- **Role:** Independent Director at Kayne Anderson Energy Infrastructure Fund; Director at Nutrien and The Cigna Group
- **Organizations:** Kayne Anderson Energy Infrastructure Fund, Nutrien, The Cigna Group, Marathon Petroleum Corporation (former), MPLX GP LLC (former), Sunoco Logistics Partners L.P. (former), Sunoco, Inc. (former), Energy Transfer Partners L.P. (former)
- **Education:** Bachelor of Science in Chemical Engineering, Drexel University
- **Known for:** Led Sunoco Logistics as president and CEO from 2012 to 2017., Led Marathon Petroleum during the $21 billion Speedway transaction, which closed in May 2021., Led Marathon during the conversion of its Dickinson and Martinez facilities to renewable diesel production.

## Career timeline

- **1981** — Began at Sunoco’s Marcus Hook refinery in engineering and operations.
- **1990** — Moved into business planning.
- **1992** — Transferred to the Philadelphia refinery.
- **1993** — Joined Sunoco’s corporate business planning group.
- **1996** — Returned to Marcus Hook as business manager.
- **1998** — Became manager of financial analysis and strategic planning.
- **2000** — Named general manager of northeast refining wholesale fuels marketing and product supply.
- **2001** — Named vice president of product trading, sales and supply.
- **2006** — Appointed senior vice president of supply, trading, sales and transportation.
- **2008** — Appointed senior vice president of business improvement.
- **2009** — Joined Sunoco Logistics as vice president of business development.
- **2010** — Named president and chief operating officer of Sunoco Logistics.
- **2012** — Became president and CEO of Sunoco Logistics.
- **2013** — Sunoco Logistics acquired the former Marcus Hook refinery for $60 million to develop a natural-gas-liquids hub.
- **2017** — Served as president, crude, NGL and refined products at Energy Transfer Partners’ general partner; joined MPLX GP LLC as president effective June 20.
- **2019** — Named president and CEO of MPLX GP LLC in November.
- **2020** — Appointed Marathon Petroleum president and CEO on March 18.
- **2021** — Marathon completed the $21 billion Speedway sale on May 14.
- **2024** — Transitioned from Marathon CEO to executive chairman on August 1 as Maryann Mannen became CEO.
- **2025** — Retired as executive chairman of Marathon Petroleum and MPLX in December.
- **2026** — Joined Kayne Anderson Energy Infrastructure Fund as an independent director on May 12.

## Achievements

- Led Sunoco Logistics as president and CEO from 2012 to 2017.
- Led Marathon Petroleum during the $21 billion Speedway transaction, which closed in May 2021.
- Led Marathon during the conversion of its Dickinson and Martinez facilities to renewable diesel production.
- Marathon’s May 2024 succession announcement credited the company with returning approximately $37 billion through dividends and share repurchases during his CEO tenure up to that announcement.

## Latest updates

- **2026-05** — Appointed independent director of Kayne Anderson Energy Infrastructure Fund, effective May 12.
- **2026-05** — Reelected to Nutrien’s board at its May 6 annual meeting.
- **2025-12** — Retired as executive chairman of Marathon Petroleum and MPLX.

## Links

- LinkedIn: https://www.linkedin.com/in/michael-j-hennigan-3a0b2525

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Profile page: https://yespress.io/michael-hennigan
Published by YesPress — https://yespress.io
Last updated: 2026-10-21