Exelon vs Marathon Petroleum
Side-by-side comparison of AI visibility scores, market position, and capabilities
Chicago Mid-Atlantic/Midwest regulated utility (NASDAQ: EXC) ~$21.6B FY2024 revenue; ComEd/PECO/BGE/Pepco/Delmarva/ACE 10.2M customers, $34.5B capex 2024-2027, Constellation spinoff 2022 competing with PSEG and Dominion.
About
Exelon Corporation is a Chicago, Illinois-based regulated electric and gas utility holding company — publicly traded on the NASDAQ (NASDAQ: EXC) as an S&P 500 Utilities component — serving approximately 10.2 million electric and gas customers across six regulated utilities: Commonwealth Edison (ComEd — Chicago and Northern Illinois), PECO Energy (Philadelphia and southeastern Pennsylvania), BGE (Baltimore Gas and Electric — Baltimore metro), Pepco (Washington DC and suburban Maryland), Delmarva Power (Delaware and Eastern Shore), and Atlantic City Electric (southern New Jersey) through approximately 21,000 employees. In fiscal year 2024, Exelon reported revenues of approximately $21.6 billion and adjusted EPS of $2.40, as the company managed through its first full year as a pure-play regulated utility following the February 2022 separation of Constellation Energy (the competitive nuclear generation business) as an independent public company — Exelon retaining only the regulated utility distribution and transmission subsidiaries serving Mid-Atlantic and Midwest metropolitan areas. CEO Calvin Butler (joined as CEO in November 2022) leads Exelon's strategy of executing the regulated utility capital plan: $34.5 billion in capital investment over 2024-2027 for distribution system upgrades, grid modernization, electric vehicle charging infrastructure, and regulatory compliance investments across the six utility service territories. Exelon's Mid-Atlantic service territory (Washington DC, Baltimore, Philadelphia, and Chicago) includes the densest concentration of federal government facilities, healthcare systems, and university campuses in the US — creating anchor commercial customers with high-reliability requirements that support premium rate case arguments.
Findlay OH petroleum refining (NYSE: MPC); largest US refiner 3M barrels/day, CEO Maryann Mannen elected Chairman (Jan 2026), MPLX midstream MLP, Martinez renewable diesel conversion competing with Valero and Phillips 66.
About
Marathon Petroleum Corporation is a Findlay, Ohio-based petroleum refining and midstream company — publicly traded on the New York Stock Exchange (NYSE: MPC) as an S&P 500 Energy component — operating the largest crude oil refining system in the United States with 13 refineries and approximately 3 million barrels per day of crude oil processing capacity across Texas, Louisiana, Illinois, Michigan, Ohio, North Dakota, California, and Washington, along with a majority ownership interest in MPLX LP (NYSE: MPLX), a midstream pipeline, terminal, and marine vessel MLP that gathers, processes, transports, and stores crude oil, natural gas, and petroleum products. In a defining leadership development, Marathon Petroleum's board elected CEO Maryann T. Mannen as Chairman of the Board effective January 1, 2026, succeeding Michael Hennigan who retired after leading the company through the Speedway divestiture and pandemic recovery — consolidating corporate governance leadership in Mannen following her tenure as CEO during which she managed the company's operations and capital allocation strategy. Marathon Petroleum's large-scale refining system (including the Galveston Bay refinery in Texas City as the largest US refinery at 631,000 barrels/day) processes crude oil into gasoline, diesel, jet fuel, and specialty products distributed through branded Speedway (sold to 7-Eleven in 2021) and independent dealer networks and MPLX's logistics infrastructure.
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