El Corcobo includes heavy oil fields CNQ-7A, Gobernador Ayala, and Jaguel Casa de Piedra. The development was previously led by Petro Andina, the company's first project in Argentina. Production began in November 2004 and ramped up significantly as the partners implemented an aggressive development strategy. In 2009, Pluspetrol acquired the Argentine assets of PetroAndina. The operator is working to maximize recovery.