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 2.9 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.