$MPC

Maryann T. Mannen

Marathon Petroleum

President & CEO • Since 2024 • Energy

📊 CEO Reputation Score

FY2025 vs FY2024 · Source: SEC EDGAR filings

42/100

Blend of this company's year-over-year free-cash-flow and profit improvement, each ranked as a percentile against every scored company in the three indexes.

Free cash flow: $6.1B → $4.8B (−22.3% YoY) — fiscal 2025 vs fiscal 2024
Profit (net income): $3.4B → $4.0B (+17.5% YoY) — fiscal 2025 vs fiscal 2024

How this score works · S&P 500 reputation leaderboard

Overview

Maryann T. Mannen is the president & ceo of Marathon Petroleum since 2024. Marathon Petroleum is a Energy company headquartered in Findlay, Ohio, founded in 2009, and one of the 500 companies in the S&P 500 — every one of which is profiled on this site.

Leadership

Maryann holds the chief executive role at Marathon Petroleum with the title President & CEO — in post since 2024. This page is the concise leadership record for Marathon Petroleum in the S&P 500 CEO index; the site's fully researched long-form profiles (career timelines, education, achievements, setbacks, philosophy and sourced quotes) currently cover the index's ten largest companies, and this entry will be expanded in the same format.

At a Glance

Sector: Energy
Ticker: $MPC
Headquarters: Findlay, Ohio
Founded: 2009
CEO since: 2024
Index: S&P 500 (#295 of 500)