| 1 | WELLTEC LATIN AMERICA APS SUCURSAL COLOMBIANA | 0% |
| 2 | INNOVEX DOWNHOLE SOLUTIONS SUCURSAL COLOMBIA | 0% |
| 3 | BULLDOG CEMENTING & PUMPING SERVICES COLOMBIA LTD | 0% |
| 4 | TIET COMPLETION SYSTEMS CORP SUCURSAL COLOMBIA | 0% |
| 5 | POWER PETROLEOM INTERNATIONAL CO LIMITED | 1% |
| 6 | CNEOG COLOMBIA SUCURSAL COLOMBIA | 1% |
| 7 | FRANKS INTERNATIONAL SUCURSAL COLOMBIA | 4% |
| 8 | WILSON WORKOVER CORP SUCURSAL COLOMBIA | 6% |
| 9 | PROVEEDORA INTERNACIONAL DE TALADROS SAS | 6% |
| 10 | KOCH MINERALS COLOMBIA S.A.S | 7% |
| 11 | ENERGY GEOPHYSICAL SERVICES SAS | 7% |
| 12 | Z-COL LLC SUCURSAL COLOMBIA | 7% |
| 13 | HELMERICH & PAYNE (COLOMBIA) DRILLING CO | 8% |
| 14 | EQUIPO PETROLERO CORP SA SUCURSAL COLOMBIA | 9% |
| 15 | CORE LABORATORIES | 9% |
| 16 | PIONEER DE COLOMBIA SDAD LTDA | 11% |
| 17 | GLOBAL ENERGY & PRODUCTION COMPANY SAS | 11% |
| 18 | ITS ENERGY SERVICES SUCURSAL COLOMBIA | 12% |
| 19 | EXTERRAN ENERGY SOLUTIONS LP SUCURSAL COLOMBIANA | 16% |
| 20 | PETROSERVICES COMPANY SAS | 16% |
| 21 | PM&F FISHING OIL SERVICES SA | 17% |
| 22 | RADRILL SA | 17% |
| 23 | NABORS DRILLING INTERNATIONAL LTD BERMUDA | 17% |
| 24 | BUENAVISTA ENERGY INVESTMENTS INC SUCURSAL COLOMBIA | 17% |
| 25 | NEW LIFT SOLUTIONS BV SUCURSAL COLOMBIA | 17% |
| 26 | NATIONAL OILWELL VARCO DE COLOMBIA | 18% |
| 27 | TUSCANY SOUTH AMERICA LTD SUCURSAL COLOMBIA | 19% |
| 28 | GO INTERNATIONAL SAS | 20% |
| 29 | SCHLUMBERGER SURENCO S.A. | 21% |
| 30 | VARISUR S.A.S | 21% |
| 31 | SINOPEC INTERNATIONAL PETROLEUM SERVICE CORP COL. | 21% |
| 32 | SUELOPETROL CA SUCURSAL COLOMBIA | 21% |
| 33 | TECNOLOGIA ECOLOGICA DEL ORIENTE SAS | 22% |
| 34 | MIDLAND OIL TOOLS COLOMBIA S.A.S | 23% |
| 35 | INVERSIONES MORENO ULLOA SAS | 23% |
| 36 | DRILLING & PRODUCTION SERVICES SAS | 23% |
| 37 | TUCKER ENERGY SERVICES S.A | 25% |
| 38 | SYGMA PETROLEUM COMPANY SA | 26% |
| 39 | CPVEN SUCURSAL COLOMBIA | 26% |
| 40 | POLYNEX SAS | 27% |
| 41 | BRASERV PETROLEO LTDA SUCURSAL COLOMBIANA | 27% |
| 42 | ISMOCOL SA | 29% |
| 43 | ESSENTIAL ENERGY SERVICES SA SUCURSAL COLOMBIA | 30% |
| 44 | ATS AMERICAN TUBULAR SERVICES | 31% |
| 45 | ESTRELLA PETROLERA DE COLOMBIA S.A.S. | 31% |
| 46 | LOS ANGELES OFS SUCURSAL COLOMBIA | 31% |
| 47 | SONOMA COLOMBIA SAS | 31% |
| 48 | BAKER HUGHES DE COLOMBIA | 33% |
| 49 | Halliburton Latin America S.R.L. Sucursal Colombia | 33% |
| 50 | ERAZO VALENCIA S.A.S. | 33% |
| 51 | COL PETROLEUM SERVICES SAS | 33% |
| 52 | S&J FULL SERVICES SAS | 35% |
| 53 | PARKO SERVICES SA | 35% |
| 54 | SANDER GEOPHYSICS LIMITED SUCURSAL COLOMBIA | 37% |
| 55 | PARKER DRILLING COMPANY INTERNATIONAL LIMITED | 38% |
| 56 | PASON COLOMBIA SAS | 38% |
| 57 | NOV DOWNHOLE DE COLOMBIA | 40% |
| 58 | KENTZ CARIBBEAN SUCURSAL COLOMBIA | 41% |
| 59 | HUPECOL OPERATING CO LLC | 41% |
| 60 | OILFIELD SERVICES Y SUPPLIES SAS | 42% |
| 61 | HV SERVICES & SUPPPLY SAS | 42% |
| 62 | TGT GAMAS SAS | 43% |
| 63 | AZUL ENERGY COLOMBIA SAS | 44% |
| 64 | OIL BUSINESS SERVICES SAS | 44% |
| 65 | SUMMUM ENERGY SAS | 44% |
| 66 | CHEMDRILL SAS | 46% |
| 67 | PACIFIC PETROLEUM ENERGY SA | 47% |
| 68 | Weatherford Colombia Limited | 47% |
| 69 | MAREN FOX S.A. | 47% |
| 70 | GENERAL RIGS SERVICES SAS | 48% |
| 71 | QMAX SOLUTIONS COLOMBIA | 48% |
| 72 | LUPATECH OFS SAS | 49% |
| 73 | COMPLETION SERVICES SUCURSAL COLOMBIA | 49% |
| 74 | CEDULA DE EXTRANJERIA | 50% |
| 75 | SNF INC | 52% |
| 76 | SERINPET LTDA | 52% |
| 77 | PIPE SUPPLY AND SERVICES SAS | 52% |
| 78 | MECANICOS ASOCIADOS SAS | 52% |
| 79 | PETROLAND SAS EN REORGANIZACION | 52% |
| 80 | DATALOG COLOMBIA SAS | 53% |
| 81 | MASSY ENERGY COLOMBIA SAS | 54% |
| 82 | SERTECPET DE COLOMBIA SA | 54% |
| 83 | ESTRELLA INTERNATIONAL ENERGY SERVICES SUCURSAL COLOMBIA | 55% |
| 84 | SERVCIOS ASOCIADOS SAS | 56% |
| 85 | TTP WELL SERVICES SA | 56% |
| 86 | CAMERON COLOMBIA LLC SUCURSAL COLOMBIANA | 57% |
| 87 | GUACAMAYA OIL SERVICES SAS | 57% |
| 88 | SHANDONG PETROLEUM EQUIPMENT CO LTD. | 57% |
| 89 | FLUIDOS Y SERVICIOS SAS | 57% |
| 90 | PETRODYNAMIC PETROLEUM SERVICES SAS | 58% |
| 91 | ESP ENERGY GROUP SAS | 59% |
| 92 | STORK TECHNICAL SERVICES HOLDING BV SUCURSAL COLOMBIA | 60% |
| 93 | ALKHORAYEF PETROLEUM COLOMBIA | 63% |
| 94 | HANNEI SAS | 63% |
| 95 | SERVICIOS PETROLEROS Y ELECTRICOS SAS | 64% |
| 96 | ABI HOLDINGS LIMITED COLOMBIA | 64% |
| 97 | ENERFLEX COMPRESSION SERVICES SAS | 65% |
| 98 | CAPITAL RESOURCES AND INVESTMENT | 66% |
| 99 | INGENIERIA Y TECNOLOGIA DE SERVICIOS S.A.S. | 66% |
| 100 | INDEPENDENCE DRILLING SA | 68% |
| 101 | RHEMA INTERNACIONAL SAS | 69% |
| 102 | ATP INGENIERIA SAS EN REORGANIZACION | 69% |
| 103 | OBRAS MONTAJES Y CONSJLTORIAS LTDA | 71% |
| 104 | DRILLING AND WORKOVER SERVICES SAS | 72% |
| 105 | ATINA ENERGY SERVICES CORP SUCURSAL COLOMBIA | 72% |
| 106 | EXCELLENCE LOGGING LATIN AMERICA LIMITED, SUCURSAL CO. | 73% |
| 107 | FLAMINGO OIL SA | 74% |
| 108 | EXPRO GULF LIMITED | 74% |
| 109 | TUBULAR RUNNING & RENTAL SERVICES SAS | 75% |
| 110 | PETROLEUM GOLD SERVICES SAS EN REORGANIZACION | 77% |
| 111 | COLOMBIAN GREEN ENERGY SAS | 77% |
| 112 | PROMISOL S.A.S. | 78% |
| 113 | PETROTECH DE COLOMBIA SAS | 79% |
| 114 | GYRODATA COLOMBIA LTDA | 79% |
| 115 | MAPLE OIL TOOLS SAS | 79% |
| 116 | OPERACION Y MANTENIMIENTO INTEGRAL DE ACTIVOS COLOMBIA SAS | 79% |
| 117 | PETREX SA SUCURSAL COLOMBIA | 80% |
| 118 | PETROWORKS SAS | 80% |
| 119 | EAGLEBURGMANN COLOMBIA SAS | 83% |
| 120 | XPLORE DRILLING SERVICES SUCURSAL COLOMBIA | 84% |
| 121 | C P P TESTING SAS | 85% |
| 122 | SAR ENERGY SAS EN REORGANIZACION | 94% |
| 123 | Ingenieria y Servicios Ambientales Isa Internacional Ltda en Reorganizacion | 96% |
| 124 | OLEODUCTO AL PACIFICO SAS | 100% |
| 125 | HOLSAN SAS EN REORGANIZACION | 105% |
| 126 | DESTRELLA PETROLERA DE PANAMA SUCURSAL COLOMBIA | 111% |
| 127 | PERFOTEC SAS EN REORGANIZACION | 113% |
| 128 | INTEGRAL DRILLING IDS INC SUCURSAL COLOMBIA | 117% |
| 129 | NLS SAS | 124% |
| 130 | PERFORACIONES PYRAMID DE COLOMBIA SAS | 126% |
| 131 | ENERGOLD DE COLOMBIA SAS | 140% |
| 132 | Valiant Artificial Lift Solutions | 149% |
| 133 | SDT DRILLING SOLUTIONS SAS | 186% |
| 134 | T-ONE ENERGY SAS | 234% |
| 135 | DISCOVERY ENERGY SERVICES COLOMBIA SA EN REORGANIZACION | 415% |
| 136 | SLS ENERGY SAS EN REORGANIZACION | 426% |
| 137 | TDA SUPPLY & SERVICE SA EN REORGANIZACION | 433% |
| 138 | COLREGISTROS SAS EN REORGANIZACION | 1086% |
APS