Wikipedia - Chaco Petrolero

Club Deportivo Chaco Petrolero is a Bolivian football club based in La Paz. Founded on 20 October 1944, it currently plays in Bolivian Football Regional Leagues, holding home games at Estadio Hernando Siles, with a 42,000-seat capacity.

History

The club was founded in 1944 as Club Deportivo Chaco Petrolero, and participated in the 1971 and 1972 Copa Libertadores.