The discovery of of high-quality oil at the Cusiana and Cupiagua fields, about east of Bogotá, has enabled Colombia to become a net oil exporter since 1986. The Transandino pipeline transports oil from Orito in the Department of Putumayo to the Pacific port of Tumaco in the Department of Nariño. Total crude oil production averages ; about is exported. The Pastrana government has significantly liberalized its petroleum investment policies, leading to an increase in exploration activity. Refining capacity cannot satisfy domestic demand, so some refined products, especially gasoline, must be imported. Plans for the construction of a new refinery are under development.