MPC vs APO Comparison

Marathon Petroleum is an independent refiner with 13 refineries in the mid continent, West Coast, and Gulf Coast of the United States with total throughput capacity of 3.0 million barrels per day. Its Dickinson, North Dakota, facility produces 184 million gallons a year of renewable diesel. Its Martinez, California, facility has the ability to produce 730 million gallons a year of renewable diesel. The firm also owns and operates midstream assets primarily through its listed master limited partnership, MPLX.

Apollo is one of the world's largest alternative asset managers, with $908.4 billion in total assets under management, or AUM, including $685.0 billion in fee-earning assets, at the end of September 2025. The company has two core operating segments: asset management and retirement services. Apollo operates with scale in each of its major product lines-private equity (with $125.6 billion in total AUM and $71.7 billion in fee-earning AUM), real estate/real assets ($59.6 billion/$27.1 billion), and private credit ($723.2 billion/$586.2 billion). Apollo has a distribution profile that is likely not too far off from the industry averages-with 84% of its assets held by institutional investors and 16% by high-net-worth clients.