| 1 | PARKER DRILLING COMPANY INTERNATIONAL LIMITED | |
| 2 | SANDER GEOPHYSICS LIMITED SUCURSAL COLOMBIA | |
| 3 | NEW LIFT SOLUTIONS BV SUCURSAL COLOMBIA | 13132% |
| 4 | BAKER HUGHES DE COLOMBIA | 7722% |
| 5 | ESP ENERGY GROUP SAS | 2992% |
| 6 | MIDLAND OIL TOOLS COLOMBIA S.A.S | 2811% |
| 7 | CAMERON COLOMBIA LLC SUCURSAL COLOMBIANA | 1496% |
| 8 | OIL BUSINESS SERVICES SAS | 1148% |
| 9 | HANNEI SAS | 681% |
| 10 | CORE LABORATORIES | 407% |
| 11 | PROVEEDORA INTERNACIONAL DE TALADROS SAS | 360% |
| 12 | DATALOG COLOMBIA SAS | 257% |
| 13 | CPVEN SUCURSAL COLOMBIA | 213% |
| 14 | TECNOLOGIA ECOLOGICA DEL ORIENTE SAS | 207% |
| 15 | HV SERVICES & SUPPPLY SAS | 179% |
| 16 | OILFIELD SERVICES Y SUPPLIES SAS | 160% |
| 17 | ERAZO VALENCIA S.A.S. | 159% |
| 18 | SINOPEC INTERNATIONAL PETROLEUM SERVICE CORP COL. | 155% |
| 19 | DISCOVERY ENERGY SERVICES COLOMBIA SA EN REORGANIZACION | 136% |
| 20 | PERFOTEC SAS EN REORGANIZACION | 132% |
| 21 | GYRODATA COLOMBIA LTDA | 127% |
| 22 | NLS SAS | 125% |
| 23 | Z-COL LLC SUCURSAL COLOMBIA | 115% |
| 24 | PETROSERVICES COMPANY SAS | 108% |
| 25 | NOV DOWNHOLE DE COLOMBIA | 107% |
| 26 | CEDULA DE EXTRANJERIA | 104% |
| 27 | C P P TESTING SAS | 101% |
| 28 | PM&F FISHING OIL SERVICES SA | 97% |
| 29 | ENERGY GEOPHYSICAL SERVICES SAS | 94% |
| 30 | VARISUR S.A.S | 92% |
| 31 | PIONEER DE COLOMBIA SDAD LTDA | 91% |
| 32 | EXPRO GULF LIMITED | 79% |
| 33 | LUPATECH OFS SAS | 71% |
| 34 | RHEMA INTERNACIONAL SAS | 69% |
| 35 | CAPITAL RESOURCES AND INVESTMENT | 68% |
| 36 | PETROLAND SAS EN REORGANIZACION | 66% |
| 37 | ATS AMERICAN TUBULAR SERVICES | 65% |
| 38 | EQUIPO PETROLERO CORP SA SUCURSAL COLOMBIA | 64% |
| 39 | DRILLING AND WORKOVER SERVICES SAS | 60% |
| 40 | SERVICIOS PETROLEROS Y ELECTRICOS SAS | 59% |
| 41 | PARKO SERVICES SA | 58% |
| 42 | COL PETROLEUM SERVICES SAS | 58% |
| 43 | POLYNEX SAS | 58% |
| 44 | PETRODYNAMIC PETROLEUM SERVICES SAS | 56% |
| 45 | TTP WELL SERVICES SA | 54% |
| 46 | PETROWORKS SAS | 53% |
| 47 | BRASERV PETROLEO LTDA SUCURSAL COLOMBIANA | 52% |
| 48 | FLUIDOS Y SERVICIOS SAS | 52% |
| 49 | PETROTECH DE COLOMBIA SAS | 51% |
| 50 | SONOMA COLOMBIA SAS | 51% |
| 51 | PASON COLOMBIA SAS | 46% |
| 52 | SERTECPET DE COLOMBIA SA | 45% |
| 53 | OPERACION Y MANTENIMIENTO INTEGRAL DE ACTIVOS COLOMBIA SAS | 40% |
| 54 | ALKHORAYEF PETROLEUM COLOMBIA | 37% |
| 55 | ENERFLEX COMPRESSION SERVICES SAS | 36% |
| 56 | ITS ENERGY SERVICES SUCURSAL COLOMBIA | 35% |
| 57 | NATIONAL OILWELL VARCO DE COLOMBIA | 35% |
| 58 | ISMOCOL SA | 33% |
| 59 | Halliburton Latin America S.R.L. Sucursal Colombia | 32% |
| 60 | SERINPET LTDA | 30% |
| 61 | Weatherford Colombia Limited | 29% |
| 62 | MECANICOS ASOCIADOS SAS | 27% |
| 63 | ATINA ENERGY SERVICES CORP SUCURSAL COLOMBIA | 26% |
| 64 | SHANDONG PETROLEUM EQUIPMENT CO LTD. | 26% |
| 65 | FLAMINGO OIL SA | 26% |
| 66 | MASSY ENERGY COLOMBIA SAS | 23% |
| 67 | STORK TECHNICAL SERVICES HOLDING BV SUCURSAL COLOMBIA | 19% |
| 68 | INDEPENDENCE DRILLING SA | 18% |
| 69 | MAPLE OIL TOOLS SAS | 18% |
| 70 | SERVCIOS ASOCIADOS SAS | 16% |
| 71 | PROMISOL S.A.S. | 15% |
| 72 | GUACAMAYA OIL SERVICES SAS | 14% |
| 73 | SNF INC | 14% |
| 74 | ESTRELLA INTERNATIONAL ENERGY SERVICES SUCURSAL COLOMBIA | 13% |
| 75 | RADRILL SA | 12% |
| 76 | HOLSAN SAS EN REORGANIZACION | 7% |
| 77 | SCHLUMBERGER SURENCO S.A. | 7% |
| 78 | INGENIERIA Y TECNOLOGIA DE SERVICIOS S.A.S. | 6% |
| 79 | NABORS DRILLING INTERNATIONAL LTD BERMUDA | 5% |
| 80 | SUMMUM ENERGY SAS | 5% |
| 81 | TDA SUPPLY & SERVICE SA EN REORGANIZACION | 3% |
| 82 | KOCH MINERALS COLOMBIA S.A.S | -2% |
| 83 | PIPE SUPPLY AND SERVICES SAS | -3% |
| 84 | SAR ENERGY SAS EN REORGANIZACION | -5% |
| 85 | ATP INGENIERIA SAS EN REORGANIZACION | -7% |
| 86 | TUCKER ENERGY SERVICES S.A | -7% |
| 87 | TUSCANY SOUTH AMERICA LTD SUCURSAL COLOMBIA | -11% |
| 88 | QMAX SOLUTIONS COLOMBIA | -17% |
| 89 | TUBULAR RUNNING & RENTAL SERVICES SAS | -17% |
| 90 | Ingenieria y Servicios Ambientales Isa Internacional Ltda en Reorganizacion | -21% |
| 91 | EAGLEBURGMANN COLOMBIA SAS | -23% |
| 92 | EXCELLENCE LOGGING LATIN AMERICA LIMITED, SUCURSAL CO. | -26% |
| 93 | LOS ANGELES OFS SUCURSAL COLOMBIA | -30% |
| 94 | FRANKS INTERNATIONAL SUCURSAL COLOMBIA | -32% |
| 95 | PACIFIC PETROLEUM ENERGY SA | -32% |
| 96 | KENTZ CARIBBEAN SUCURSAL COLOMBIA | -34% |
| 97 | PETREX SA SUCURSAL COLOMBIA | -35% |
| 98 | S&J FULL SERVICES SAS | -43% |
| 99 | EXTERRAN ENERGY SOLUTIONS LP SUCURSAL COLOMBIANA | -43% |
| 100 | OBRAS MONTAJES Y CONSJLTORIAS LTDA | -46% |
| 101 | GENERAL RIGS SERVICES SAS | -61% |
| 102 | COLREGISTROS SAS EN REORGANIZACION | -61% |
| 103 | CHEMDRILL SAS | -66% |
| 104 | INVERSIONES MORENO ULLOA SAS | -68% |
| 105 | COMPLETION SERVICES SUCURSAL COLOMBIA | -68% |
| 106 | TGT GAMAS SAS | -70% |
| 107 | Valiant Artificial Lift Solutions | -74% |
| 108 | COLOMBIAN GREEN ENERGY SAS | -77% |
| 109 | HELMERICH & PAYNE (COLOMBIA) DRILLING CO | -79% |
| 110 | GLOBAL ENERGY & PRODUCTION COMPANY SAS | -83% |
| 111 | AZUL ENERGY COLOMBIA SAS | -89% |
| 112 | BULLDOG CEMENTING & PUMPING SERVICES COLOMBIA LTD | -91% |
| 113 | PETROLEUM GOLD SERVICES SAS EN REORGANIZACION | -91% |
| 114 | MAREN FOX S.A. | -93% |
| 115 | TIET COMPLETION SYSTEMS CORP SUCURSAL COLOMBIA | -95% |
| 116 | GO INTERNATIONAL SAS | -95% |
| 117 | DESTRELLA PETROLERA DE PANAMA SUCURSAL COLOMBIA | -95% |
| 118 | ENERGOLD DE COLOMBIA SAS | -97% |
| 119 | WILSON WORKOVER CORP SUCURSAL COLOMBIA | -98% |
| 120 | HUPECOL OPERATING CO LLC | -98% |
| 121 | SDT DRILLING SOLUTIONS SAS | -99% |
| 122 | INNOVEX DOWNHOLE SOLUTIONS SUCURSAL COLOMBIA | -100% |
| 123 | POWER PETROLEOM INTERNATIONAL CO LIMITED | -100% |
| 124 | PERFORACIONES PYRAMID DE COLOMBIA SAS | -100% |
| 125 | ABI HOLDINGS LIMITED COLOMBIA | -100% |
| 126 | BUENAVISTA ENERGY INVESTMENTS INC SUCURSAL COLOMBIA | -100% |
| 127 | CNEOG COLOMBIA SUCURSAL COLOMBIA | -100% |
| 128 | DRILLING & PRODUCTION SERVICES SAS | -100% |
| 129 | ESSENTIAL ENERGY SERVICES SA SUCURSAL COLOMBIA | -100% |
| 130 | ESTRELLA PETROLERA DE COLOMBIA S.A.S. | -100% |
| 131 | INTEGRAL DRILLING IDS INC SUCURSAL COLOMBIA | -100% |
| 132 | OLEODUCTO AL PACIFICO SAS | -100% |
| 133 | SLS ENERGY SAS EN REORGANIZACION | -100% |
| 134 | SUELOPETROL CA SUCURSAL COLOMBIA | -100% |
| 135 | SYGMA PETROLEUM COMPANY SA | -100% |
| 136 | T-ONE ENERGY SAS | -100% |
| 137 | WELLTEC LATIN AMERICA APS SUCURSAL COLOMBIANA | -100% |
| 138 | XPLORE DRILLING SERVICES SUCURSAL COLOMBIA | -100% |
APS