Arpechim Refinery was one of the largest Romanian refineries and one of the largest in Europe, located in Pitești, Argeș County, and had both refining and petrochemical capacities. It was closed in 2011. The refinery had two processing modules with a nominal capacity of 6.5 million tonnes/year. The facility was connected by pipeline to the oil fields in the Oltenia Region and to the Port of Constanţa. The refinery produced around 60% of all the bitumen used in Romania.