From the get-go CITGO Petroleum has been refining and marketing petroleum products, including jet fuel, diesel fuel, heating oils, and lubricants. It markets CITGO branded gasoline through about 6,500 independent retail outlets in 28 US states, mainly east of the Rockies. CITGO Petroleum owns oil refineries in Illinois, Louisiana, and Texas. The company has the refining capacity to process more than 749,000 barrels per day. It markets more than 600 types of lubricants and sold 15.5 billion gallons of refined products in 2015. CITGO Petroleum is the operating subsidiary of PDV America, itself a subsidiary of Venezuela's national oil company PDVSA .