ENAP and subsidiaries have started a strong productive expansion since the nineties, with its own resources and in association with other domestic and international companies. The latter has occurred in the Company’s two lines of business, Exploration and Production (E&P) and Refining and Logistics (R&L).
| Repsol YPF | Argentina | |
| PetroEcuador | Ecuador | |
| Kuwait Energy Company | Kuwait | |
| Petroshahd | Egypt | |
| Wintershall | Germany | |
| Edison International | Italy | |
| OMV | Iran | |
| ENEL | Italy | |
| Antofagasta Minerals | Chile | |
| Methanex | Canadá |
| Foster Wheeler | United States | |
| Ferrostaal | Germany | |
| Técnicas Reunidas | Spain | |
| BG | United Kingdom | |
| Endesa | Spain | |
| Metrogas | Chile | |
| Grupo Romero | Peru and Ecuador | |
| AGA Chile | Chile |
| Consorcio Maderero | Chile | |
| Gasco | Chile |