Enap Refinerías S.A., the refining subsidiary of Chile's state oil company Enap, engages in the production of fuel and oil products, as well as in logistics infrastructure activities related to the transportation and storage of hydrocarbons products. It produces gasoline and diesel and other oil products including those used in the manufacture of asphalt and ethylene. It also produces other petrochemical products. Enap Refinerías assets include two refineries in Aconcagua and Bío Bío. The firm also has a storage and pipeline division. The company was formed in 2003 after the merger of Petrox and Refinería de Petróleo Concón. In 2010, Enap Refinerías consolidated its market position by acquiring Enap's subsidiaries Enercon, Prodisa, Petrosul and Etalsa. It has also participated in the fuel sale markets in Peru and Ecuador. In 2013, Enap Refinerías sold its 49% stake in subsidiary Primax to Peruvian multi-sector holding Grupo Romero.