Maryann Mannen
Maryann Mannen is the CEO of Marathon Petroleum, one of the largest petroleum refining companies in the United States. With a strong background in operations and engineering, she has played a key role in leading the company through various market challenges and has been an advocate for sustainable energy practices and initiatives within the industry.
Global Media Ratings
Countries Mentioned
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Each country's color is based on "Mentions" from the table above.
Recent Mentions
Guyana:
Marathon Petroleum CEO Maryann Mannen is among the leaders on the trade group’s executive committee.
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Canada:
Maryann Mannen is the CEO of Marathon Petroleum and will be present at the meeting with Trump.
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