Maryann Mannen

Maryann Mannen is the Chairman, President, and Chief Executive Officer of Marathon Petroleum Corporation (MPC) and MPLX. Based in Houston, Texas.

About Maryann Mannen

Maryann Mannen is the Chairman, President, and Chief Executive Officer of Marathon Petroleum Corporation (MPC) and MPLX. She was appointed CEO effective August 1, succeeding Michael Hennigan, after serving as the company's President at Marathon Petroleum.

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