Valero Energy Corporation, through its subsidiaries, is an international manufacturer and marketer of transportation fuels, petrochemical products and power. Valero subsidiaries employ approximately 10,000 people, and assets include 15 petroleum refineries with a combined throughput capacity of approximately 3 million barrels per day, 11 ethanol plants with a combined production capacity of 1.3 billion gallons per year, and a 50-megawatt wind farm. More than 7,500 outlets carry the Valero, Diamond Shamrock, Shamrock and Beacon brands in the United States and the Caribbean; Ultramar in Canada; and Texaco in the United Kingdom and Ireland. Through subsidiaries, Valero owns the general partner of Valero Energy Partners LP, a midstream master limited partnership. Valero is a Fortune 20 company based in San Antonio.