Marathon Petroleum Names Insider Maryann Mannen as CEO
05.14.2024 By Tank Terminals - NEWS

May 14, 2024 [Reuters]- Marathon Petroleum, the largest U.S. oil refiner, on Monday named President Maryann Mannen to succeed Michael Hennigan as chief executive officer effective Aug. 1.


Hennigan, 64, successfully underwent treatment for throat cancer during his nearly four years at the helm of the largest U.S. crude oil refiner. He becomes executive chairman on stepping down as CEO, the company said.

Three years ago, Marathon closed the $21 billion sale of its Speedway gasoline retail operations to 7-Eleven, a unit of Seven & i Holdings, following a long pressure campaign by investor Elliott Investment Management.

Mannen “has demonstrated a keen understanding of our business, clear judgment and a strong financial expertise that will serve shareholders well,” Hennigan said in a statement.

Mannen joined the Findlay, Ohio-based refiner from TechnipFMC as finance chief in 2021 and was promoted to president on Jan. 1.

As CEO, she will run a refiner that processes 3 million barrels per day of crude oil across 13 refineries.

Hennigan will replace independent chairman John Surma, 69.


Free Trial: Access 13,300 Tank Terminal and Production Facilities

13,300 tank storage and production facilities as per the date of this article. Click on the button and register to get instant access to actionable tank storage industry data

Tangier Island Awarded $2.3 Million Grant for Fuel Storage
06.20.2024 - NEWS
June 20, 2024 [National Fisherman]- Tangier Island, Va., sits in the middle of Chesapeake Bay wit... Read More
Sweco Supports VoltH2 in Design and Development of New Green Hydrogen Plant in The Netherlands
06.20.2024 - NEWS
June 20, 2024 [Public Now]- The European energy company VoltH2 has selected Sweco as its partner ... Read More
ONEOK Completes Acquisition of Gulf Coast NGL System
06.20.2024 - NEWS
June 20, 2024 [ONEOK]- ONEOK, Inc. announced that it has completed its acquisition of a system of... Read More
Phillips 66 Refining Margins Tighten on TMX Expansion Start-Up
06.20.2024 - NEWS
June 20, 2024 [Market Screener]- U.S. refiner Phillips 66 said on Tuesday its margins have tighte... Read More