Valero Energy Corp. engages in the manufacture and marketing of transportation fuels and other petrochemical products. The company is headquartered in San Antonio, Texas and currently employs 9,898 full-time employees. The firm sells its products primarily in the United States, Canada, the United Kingdom, Ireland and Latin America. Its segments include Refining, Renewable Diesel, and Ethanol. The Refining segment includes the operations of its petroleum refineries, the associated activities to market its refined petroleum products, and the logistics assets that support its refining operations. The Renewable Diesel segment represents the operations of Diamond Green Diesel (DGD), and the associated activities to market renewable diesel, renewable naphtha, and neat SAF. The Ethanol segment includes the operations of its ethanol plants and the associated activities to market its ethanol and co-products. The company owns 15 petroleum refineries located in the United States, Canada and the United Kingdom.