Marathon Petroleum Corporation is a leading, integrated, downstream energy company that operates in the United States. The corporation is headquartered in Findlay, Ohio and was established in 1887. The Marathon Petroleum Corporation deals with refining, marketing, retail and transportation businesses that are concentrated primarily in the Midwest, Southeast, Northeast and Gulf Coast regions of the United States. Marathon Petroleum Corporation is known as the largest refiner in the United States with a crude oil refining capacity of more than 3 million barrels per day across 16 refineries. The company has an extensive logistics network that includes pipelines, barges, trucks, and terminals that store and distribute crude oil and refined products. Marathon Petroleum also owns and operates retail convenience stores under several well-known brands, including Speedway, which is one of the largest convenience store chains in the United States