Marathon Petroleum rStock (RMPC)

Marathon Petroleum engages in crude oil refining, processing, and the marketing and distribution of petrochemical products. The company operates large-scale refineries, processing crude oil into gasoline, diesel, aviation fuel, and specialty chemicals. Additionally, it owns massive midstream logistics infrastructure, including oil pipelines and storage terminals, and sells refined fuels through independent retailer networks. The business primarily earns refining margins through physical bulk commodity delivery and fuel wholesale.