Marathon Petroleum Corporation (MPN.DE) Stock Analysis & Winston Score

Marathon Petroleum Corporation turns crude oil into everyday products like gasoline, diesel, and jet fuel. It sells these fuels to gas stations, trucking companies, airlines, and other businesses across the United States. Marathon is one of the largest oil refiners in the country and also owns the Speedway-branded fuel network, though it sold that retail chain to 7-Eleven in 2021. Marathon makes money by buying crude oil, refining it, and selling the finished products at a higher price. The difference between those two prices is called the "crack spread," and it is the main driver of Marathon's profits. The company operates entirely in the United States, with refineries spread across the Midwest, Gulf Coast, and West Coast, giving it broad geographic reach. Its biggest risk is that refining margins can swing sharply depending on crude oil prices, fuel demand, and competition from other refiners.