Description Petro Andina Resources is an oil and gas exploration, development, and production company which focuses its operations in South America The company's main operations are located on 628,000 acres of land found in the Neuquen Basin in Argentina. Petro Andina averages more than 11,000 barrels of oil per day and boasts that it is one of the largest producers of crude oil in Argentina. In 2009 Netherlands-based PlusPetrol Resources acquired Petro Andina Resources, which then spun off its Trinidad and Tobago and Colombia assets as Parex Resources.