Valero Energy Corporation manufactures, markets, and sells transportation fuels and petrochemical products in the United States, Canada, the United Kingdom, Ireland, and internationally. The company operates through three segments: Refining, Renewable Diesel, and Ethanol. It produces conventional, premium, and reformulated gasolines; gasoline meeting the specifications of the California Air Resources Board (CARB); diesel fuels, and low-sulfur and ultra-low-sulfur diesel fuels; CARB diesel; other distillates; jet fuels; blendstocks; and asphalts, petrochemicals, lubricants, and other refined petroleum products, as well as sells lube oils and natural gas liquids.