APS| Pos. | Empresa | UO / Vts. |
|---|---|---|
| 1 | PETROBRAS INTERNATIONAL BRASPETRO BV - SUCURSAL COLOMBIA | |
| 2 | Pluspetrol Colombia Corporation Sucursal Colombiana | |
| 3 | TEXICAN OIL & GAS S.A. SUCURSAL COLOMBIA | |
| 4 | CANACOL ENERGY COLOMBIA S.A.S | 48% |
| 5 | WATTLE PETROLEUM COMPANY SAS | 40% |
| 6 | CNE OIL & GAS SAS | 39% |
| 7 | PCR INVESMENTS S.A. SUCURSAL COLOMBIA | 21% |
| 8 | PETROLEOS SUD AMERICANOS SUCURSAL COLOMBIA | 6% |
| 9 | DRUMMOND ENERGY, INC | -1675% |