Valero Energy is a large American company that specializes in refining and marketing petroleum products. Founded in 1980 and headquartered in San Antonio, Texas, Valero operates numerous refineries across the United States, Canada, and the United Kingdom. The company produces a variety of fuels, including gasoline, diesel, and jet fuel, as well as other petrochemical products. In addition to refining, Valero is involved in renewable energy through its production of ethanol and biodiesel. The company is committed to sustainability and has invested in technologies to reduce emissions and improve energy efficiency. Valero is one of the largest independent refiners in North America, playing a significant role in the energy sector.