| 1 | ASEZT ENERGY CORPORATION COLOMBIA | |
| 2 | ANADARKO COLOMBIA COMPANY SUCURSAL COLOMBIA | |
| 3 | CANTANA ENERGY SUCURSAL COLOMBIA | |
| 4 | CNPC INTERNATIONAL SUCURSAL COLOMBIA | |
| 5 | Colcco SA | |
| 6 | ECOPETROL COSTA AFUERA COLOMBIA SAS | |
| 7 | GULFSANDS PETROLEUM PLC SUCURSAL COLOMBIA | |
| 8 | LA LUNA E&P S DE RL SUCURSAL COLOMBIA | |
| 9 | MAUREL & PROM SA SUR AMERICA | |
| 10 | MKMS ENERJI SUCURSAL COLOMBIA | |
| 11 | REPSOL EXPLORACION COLOMBIA SA | |
| 12 | GEOPARK COLOMBIA SAS | 213035% |
| 13 | ONGC VIDESH LIMITED SUCURSAL COLOMBIANA | 79350% |
| 14 | GRAN TIERRA ENERGY COLOMBIA, LLC SUCURSAL | 60866% |
| 15 | OIRU CORPORATION | 13429% |
| 16 | GRAN TIERRA COLOMBIA INC SUCURSAL | 11551% |
| 17 | ANDES PRODUCTION COMPANY LLC SUCURSAL COLOMBIA | 2133% |
| 18 | TECPETROL COLOMBIA S.A.S. | 1909% |
| 19 | PETROLEOS COLOMBIANOS SA | 228% |
| 20 | NIKOIL ENERGY CORP SUC COLOMBIA | 198% |
| 21 | PETRODORADO SOUT AMERICA S.A. SUCURSAL COLOMBIA | 187% |
| 22 | OMEGA ENERGY COLOMBIA | 160% |
| 23 | COLOMBIA ENERGY DEVELOPMENT CO. | 155% |
| 24 | REPSOL COLOMBIA OIL & GAS LIMITED | 120% |
| 25 | PERENCO OIL AND GAS COLOMBIA LIMITED | 116% |
| 26 | JOSHI TECHNOLOGIES INTERNATIONAL INC. SUCURSAL COLOMBIA | 109% |
| 27 | PAREX RESOURCES COLOMBIA LTD. SUCURSAL | 97% |
| 28 | INTEROIL COLOMBIA EXPLORATION AND PRODUCTION | 76% |
| 29 | EMERALD ENERGY PLC SUCURSAL COLOMBIA | 73% |
| 30 | AMERISUR EXPLORACION COLOMBIA LIMITADA | 72% |
| 31 | CEPSA COLOMBIA S.A. | 72% |
| 32 | CNOOC PETROLEUM COLOMIBA LIMITED | 70% |
| 33 | VERANO ENERGY LIMITED SUCURSAL | 61% |
| 34 | NEW GRANADA ENERGY CORPORATION SUCURSAL COLOMBIANA | 59% |
| 35 | IBEROAMERICANA DE HIDROCARBUROS CQ EXPLORACIÓN & PROD. | 57% |
| 36 | MANSAROVAR ENERGY COLOMBIA LTD | 54% |
| 37 | LAS QUINCHAS RESOURCE CORP SUCURSAL COLOMBIA | 48% |
| 38 | SIERRACOL ENERGY ANDINA, LLC. | 47% |
| 39 | HOCOL S.A. | 45% |
| 40 | PETROSANTANDER COLOMBIA GMBH | 42% |
| 41 | SIERRACOL ENERGY ARAUCA, LLC. | 41% |
| 42 | Frontera Energy Colombia Corp., Sucursal Colombia | 41% |
| 43 | LAS QUINCHAS PETROLEUM | 40% |
| 44 | Samaria Llanos Exploration Sucursal Colombia | 25% |
| 45 | COLPAN OIL & GAS LTDA SUCURSAL COLOMIBIA | 18% |
| 46 | MASERING OIL & GAS VSM 22 INC | 0% |
| 47 | TPL COLOMBIA LTD SUCURSAL COLOMBIA | -1% |
| 48 | IONOS DIRECTIONAL SERVICES SAS | -9% |
| 49 | MOMPOS OIL COMPANY INC | -23% |
| 50 | GOAM 1 C.I S.A.S | -27% |
| 51 | CIMARRONA LIMITED LIABILITY COMPANY | -36% |
| 52 | PETRO CARIBBEAN RESOURCES LTD | -39% |
| 53 | INFINITY OIL LIMITED | -39% |
| 54 | PERENCO COLOMBIA LIMITED | -42% |
| 55 | VETRA EXPLORACIÓN Y PRODUCCIÓN COLOMBIA S.A.S. | -44% |
| 56 | SAINT-AUBIN INTERNATIONAL SAS | -49% |
| 57 | GREEN POWER SUCURSAL COLOMBIA | -53% |
| 58 | Carrao Energy S.A. Sucursal Colombia | -60% |
| 59 | EQUION ENERGIA LIMITED | -75% |
| 60 | ANDES ENERGIA ARGENTINA S A SUCURSAL COLOMBIA | -100% |
| 61 | AZABACHE ENERGY CORP SUCURSAL COLOMBIA | -100% |
| 62 | BC EXPLORACION Y PRODUCCION DE HIDROCARBUROS S L SUCURSAL COLOMBIA | -100% |
| 63 | CECSA ENERGY INC (SUCURSAL EN COLOMBIA) | -100% |
| 64 | CEIBO ENERGY CORP SUCURSAL COLOMBIA | -100% |
| 65 | CNE ENERGY SAS | -100% |
| 66 | COMTROL COLOMBIA S.A. | -100% |
| 67 | CONOCOPHILLIPS COLOMBIA VENTURES LTD SUCURSAL COLOMBIA | -100% |
| 68 | CPVEN E&P CORP SUCURSAL COLOMBIA | -100% |
| 69 | EXXONMOBIL EXPLORATION COLOMBIA LIMITED | -100% |
| 70 | GEO TECHNOLOGY LA SUCURSAL COLOMBIA | -100% |
| 71 | HUPECOL META SUCURSAL COLOMBIA | -100% |
| 72 | MAJOR INTERNATIONAL OIL SA EN LIQUIDACION | -100% |
| 73 | MAUREL & PROM COLOMBIA B.V | -100% |
| 74 | PETROLIFERA PETROLEUM COLOMBIA LIMITED | -100% |
| 75 | POWER 2020 OVERSEAS MANAGEMENT CORP | -100% |
| 76 | SANTIAGO OIL COMPANY | -100% |
| 77 | SHELL EXPLORATION AND PRODUCTION COLOMBIA GMBH (SEPC) SUC. C | -100% |
| 78 | SK INNOVATION CO LTD | -100% |
| 79 | SOUTHEAST INVESTMENT CORPORATION | -100% |
| 80 | STATOIL COLOMBIA SUCURSAL | -100% |
| 81 | Telpico Colombia LLC | -100% |
| 82 | TOTAL E&P COLOMBIE SUCURSAL COLOMBIA | -100% |
APS