Valero Corpus Christi, Texas

One of the last major refineries to be built from scratch in the United States, Valero's Corpus Christi refinery, also called the Bill Greehey Refinery, was commissioned in 1983. It is the largest of the company's 14 refineries in the USA, with a capacity of 325,000 barrels per day. Employs around 760 people, and covers over 500 acres. It includes the West Plant which specializes in producing environmentally clean fuels and products e.g. RFG and ultra-low-sulfur diesel, and the East Plant,  a 115,000 barrels per day refinery built in the 1960s, that Valero acquired in 2001, which processes heavy, high-sulfur crude oil into light products, as well as producing asphalt and petroleum coke.