Apco Oil and Gas International Inc. (Apco) is an international oil and gas exploration and production company with a focus on South America. As of December 31, 2013, it had approximately nine oil and gas producing concessions and two exploration permits in Argentina, and three exploration and production contracts in Colombia. Its focus is on the exploitation of its properties in the Neuquen basin with its partners Petrolera Entre Lomas. Its producing operations are located in the Neuquen, Austral, San Jorge and Northwest basins in Argentina and in the Llanos basin in Colombia. It also has exploration activities in both Argentina and Colombia. Its asset portfolio is Neuquen Basin Properties, Northwest Basin Properties, Austral Basin Properties, San Jorge Basin Properties and Colombia.