The Empresa Nacional de Petróleo (ENAP), is a chilean company 100% state-owned, enganged in the exploration, production, refining and trading of hidrocarbons and derivaties. ENAP's international operations involve gas and crude oil production in Ecuador, Egypt and Argentina through partnerships with leading companies in this sector. The company plays a strategic role in fuel provision, with a 59.2% market share nationwide in 2015, which is two percentage points less than in 2014. In Chile, ENAP has three business lines: Exploration and production (E&P), which manages the search and production of hydrocarbons and is responsible for the tender and subscription Special Petroleum Operation Contracts (CEOP), allowing related companies to establish partnerships with ENAP for exploration of blocks located in the Magallanes Region. This business line is responsible as well for the operations of the international subsidiary - Sipetrol - which develops ENAP's oeprations overseas. Meanwhile, the Refining and Marketing (R&M) business line operates the Aconcagua, Bio Bio and Gregorio refineries where crude oil is processed into fuel. The Gas and Power (G&P) business line, created in August 2014, is responsible for the gas business and its increased presence in the country's energy matrix. ENAP's headquarters is ¿¿located in Santiago.
ENAP's investments increased to US$400mn in 2014 and exceeded US$600mn in 2015. In December 2015, Enap chose the Japanese company Mitsui to enter tinto he electricity generation market by developing two combined cycle projects based on natural gas, with a total estimated investmente around $1.300mn.