Club Deportivo Oriente Petrolero () is a Bolivian football club based in Santa Cruz de la Sierra, Bolivia. They play at the 38,000-capacity Estadio Tahuichi Aguilera. Oriente have been Bolivian champions five times, Copa Aerosur winners two times. They have also been successful in South America, by being the second Bolivian team to make the quarter-finals in Copa Libertadores. The club had their first major success in 1971, when they won the league championship. Oriente Petrolero won several cup competitions during the 1980s, but after that did not win another major title until 1989. The past decade has been the most successful period in Oriente's history, capped by winning La Liga titles in 2001, and 2010. They have a longstanding rivalry with fellow Santa Cruz team Blooming. History While still in the Association of Santa Cruz, an amateur club was formed on the basis of a neighborhood team called 'Oriente', composed solely of employees of the YPFB oil company. On 5 November 1955, became its first president Elmer Saucedo Parada became the club's first ever president. This preparation phase lasted until the club became one of the main players in the championships of the ACF, ranking consistently among the top three. In 1957 they won the title of first ascent two years and won their first title in First of Honor. In 1960 they were second and in 1961 they won their second title in six years after defeating Blooming 1–0 in the final. In 1965 they placed their first ACF professional tournament, and finished in second place behind Club Destroyers. The next year the same thing happened. However, in 1967, they won their first professional title after finishing in front of their classic rival Club Blooming. In 1971 they won their first Bolivian Primera División title. This meant they qualified for the 1972 Copa Libertadores, their first Copa Libertadores. Oriente Petrolero has won national titles in the Bolivian league in 1979, 1990, 2001. In 2001 Oriente renovated players, and that was one of the most important years for the club because in the Torneo Apertura 2 Oriente end up in the second place and Bolivar first. They drew with the same number of points but Bolivar won on goal differential. In the 2001 Clausura Oriente gained a berth to the Copa Libertadores by winning their third National Championship and the Copa Sudamericana after finishing second in the Apertura. In