Valero Energy Corp. engages in the manufacture and market of transportation fuels, petrochemical products and power. It operates through the Refining and Ethanol segments. The Refining segment includes refining operations, wholesale marketing, product supply and distribution, and transportation operations in the U.S., Canada, the U.K., Aruba, and Ireland. The Ethanol segment consists of sales of internally produced ethanol and distillers grains. The company was founded on January 1, 1980 and is headquartered in San Antonio, TX.