Petrex S.A., a Peruvian subsidiary of Italian oil and gas contractor Saipem S.p.A., provides onshore and offshore drilling and oil well maintenance services for the oil industry. The company has 68 drilling, workover and pulling rigs in Peru, Venezuela, Ecuador, Colombia, Bolivia and Chile. Petrex was founded in 1983 and is based in Lima, Peru. In 2015, Petrex was awarded a contract to engineer and build a water pipeline for Chilean state copper giant Codelco's Radomiro Tomic mine. The project also includes all related facilities, among them pumping stations. The 160km pipeline will carry water to the Antofagasta region (II) mine's RT Sulfuros expansion project, located some 3,000m above sea level.