Valero Energy Corporation (Valero) is an independent petroleum refining and marketing company. Valero�s refineries can produce conventional gasoline�s, distillates, jet fuel, asphalt, petrochemicals, lubricants, and other refined products, as well as a slate of premium products, including conventional blendstock for oxygenate blending and reformulated gasoline blendstock for oxygenate blending, gasoline meeting the specifications of the California Air Resources Board, a diesel fuel, and low-sulfur and ultra-low-sulfur diesel fuel. It also owns 10 ethanol plants in the central plains region of the United States with a combined ethanol nameplate production capacity of about 1.1 billion gallons per year. It operates in three business segments: refining, ethanol, and retail. In May 2013, CST Brands Inc announced that the Company which includes Corner Store and Depanneur du Coin, spun off from Valero Energy Corporation.