| 1 | PARKER DRILLING COMPANY INTERNATIONAL LIMITED | |
| 2 | SANDER GEOPHYSICS LIMITED SUCURSAL COLOMBIA | |
| 3 | ABI HOLDINGS LIMITED COLOMBIA | |
| 4 | BUENAVISTA ENERGY INVESTMENTS INC SUCURSAL COLOMBIA | |
| 5 | CNEOG COLOMBIA SUCURSAL COLOMBIA | |
| 6 | DRILLING & PRODUCTION SERVICES SAS | |
| 7 | ESSENTIAL ENERGY SERVICES SA SUCURSAL COLOMBIA | |
| 8 | ESTRELLA PETROLERA DE COLOMBIA S.A.S. | |
| 9 | INTEGRAL DRILLING IDS INC SUCURSAL COLOMBIA | |
| 10 | OLEODUCTO AL PACIFICO SAS | |
| 11 | SLS ENERGY SAS EN REORGANIZACION | |
| 12 | SUELOPETROL CA SUCURSAL COLOMBIA | |
| 13 | SYGMA PETROLEUM COMPANY SA | |
| 14 | T-ONE ENERGY SAS | |
| 15 | WELLTEC LATIN AMERICA APS SUCURSAL COLOMBIANA | |
| 16 | XPLORE DRILLING SERVICES SUCURSAL COLOMBIA | |
| 17 | Weatherford Colombia Limited | 82% |
| 18 | WILSON WORKOVER CORP SUCURSAL COLOMBIA | 63% |
| 19 | PM&F FISHING OIL SERVICES SA | 36% |
| 20 | HANNEI SAS | 33% |
| 21 | ENERFLEX COMPRESSION SERVICES SAS | 33% |
| 22 | EQUIPO PETROLERO CORP SA SUCURSAL COLOMBIA | 32% |
| 23 | DRILLING AND WORKOVER SERVICES SAS | 31% |
| 24 | PARKO SERVICES SA | 28% |
| 25 | TECNOLOGIA ECOLOGICA DEL ORIENTE SAS | 27% |
| 26 | SCHLUMBERGER SURENCO S.A. | 26% |
| 27 | FLUIDOS Y SERVICIOS SAS | 26% |
| 28 | INVERSIONES MORENO ULLOA SAS | 25% |
| 29 | EAGLEBURGMANN COLOMBIA SAS | 24% |
| 30 | SONOMA COLOMBIA SAS | 24% |
| 31 | CAMERON COLOMBIA LLC SUCURSAL COLOMBIANA | 23% |
| 32 | SERTECPET DE COLOMBIA SA | 22% |
| 33 | CEDULA DE EXTRANJERIA | 22% |
| 34 | COMPLETION SERVICES SUCURSAL COLOMBIA | 21% |
| 35 | POLYNEX SAS | 20% |
| 36 | DATALOG COLOMBIA SAS | 20% |
| 37 | COL PETROLEUM SERVICES SAS | 19% |
| 38 | BULLDOG CEMENTING & PUMPING SERVICES COLOMBIA LTD | 19% |
| 39 | EXPRO GULF LIMITED | 18% |
| 40 | NOV DOWNHOLE DE COLOMBIA | 17% |
| 41 | LOS ANGELES OFS SUCURSAL COLOMBIA | 17% |
| 42 | AZUL ENERGY COLOMBIA SAS | 15% |
| 43 | ESP ENERGY GROUP SAS | 14% |
| 44 | ATS AMERICAN TUBULAR SERVICES | 14% |
| 45 | CPVEN SUCURSAL COLOMBIA | 14% |
| 46 | TGT GAMAS SAS | 14% |
| 47 | SHANDONG PETROLEUM EQUIPMENT CO LTD. | 13% |
| 48 | GENERAL RIGS SERVICES SAS | 13% |
| 49 | BRASERV PETROLEO LTDA SUCURSAL COLOMBIANA | 13% |
| 50 | PACIFIC PETROLEUM ENERGY SA | 13% |
| 51 | NABORS DRILLING INTERNATIONAL LTD BERMUDA | 13% |
| 52 | PASON COLOMBIA SAS | 12% |
| 53 | PETRODYNAMIC PETROLEUM SERVICES SAS | 12% |
| 54 | TTP WELL SERVICES SA | 12% |
| 55 | COLOMBIAN GREEN ENERGY SAS | 12% |
| 56 | NLS SAS | 12% |
| 57 | PETROTECH DE COLOMBIA SAS | 12% |
| 58 | ERAZO VALENCIA S.A.S. | 12% |
| 59 | ENERGY GEOPHYSICAL SERVICES SAS | 11% |
| 60 | OBRAS MONTAJES Y CONSJLTORIAS LTDA | 11% |
| 61 | RHEMA INTERNACIONAL SAS | 11% |
| 62 | PIPE SUPPLY AND SERVICES SAS | 11% |
| 63 | ISMOCOL SA | 10% |
| 64 | GUACAMAYA OIL SERVICES SAS | 10% |
| 65 | NEW LIFT SOLUTIONS BV SUCURSAL COLOMBIA | 10% |
| 66 | PETROSERVICES COMPANY SAS | 10% |
| 67 | PETROWORKS SAS | 10% |
| 68 | PROVEEDORA INTERNACIONAL DE TALADROS SAS | 9% |
| 69 | VARISUR S.A.S | 9% |
| 70 | SERVICIOS PETROLEROS Y ELECTRICOS SAS | 9% |
| 71 | PETROLAND SAS EN REORGANIZACION | 9% |
| 72 | HV SERVICES & SUPPPLY SAS | 8% |
| 73 | MIDLAND OIL TOOLS COLOMBIA S.A.S | 7% |
| 74 | S&J FULL SERVICES SAS | 7% |
| 75 | ATP INGENIERIA SAS EN REORGANIZACION | 7% |
| 76 | MAPLE OIL TOOLS SAS | 6% |
| 77 | PROMISOL S.A.S. | 6% |
| 78 | KOCH MINERALS COLOMBIA S.A.S | 6% |
| 79 | TUSCANY SOUTH AMERICA LTD SUCURSAL COLOMBIA | 5% |
| 80 | ITS ENERGY SERVICES SUCURSAL COLOMBIA | 5% |
| 81 | EXTERRAN ENERGY SOLUTIONS LP SUCURSAL COLOMBIANA | 5% |
| 82 | QMAX SOLUTIONS COLOMBIA | 5% |
| 83 | OPERACION Y MANTENIMIENTO INTEGRAL DE ACTIVOS COLOMBIA SAS | 5% |
| 84 | RADRILL SA | 4% |
| 85 | ALKHORAYEF PETROLEUM COLOMBIA | 3% |
| 86 | TUCKER ENERGY SERVICES S.A | 3% |
| 87 | C P P TESTING SAS | 3% |
| 88 | CAPITAL RESOURCES AND INVESTMENT | 3% |
| 89 | STORK TECHNICAL SERVICES HOLDING BV SUCURSAL COLOMBIA | 3% |
| 90 | MASSY ENERGY COLOMBIA SAS | 2% |
| 91 | TUBULAR RUNNING & RENTAL SERVICES SAS | 2% |
| 92 | SERINPET LTDA | 2% |
| 93 | INGENIERIA Y TECNOLOGIA DE SERVICIOS S.A.S. | 2% |
| 94 | BAKER HUGHES DE COLOMBIA | 2% |
| 95 | CORE LABORATORIES | 1% |
| 96 | NATIONAL OILWELL VARCO DE COLOMBIA | 1% |
| 97 | HOLSAN SAS EN REORGANIZACION | 1% |
| 98 | LUPATECH OFS SAS | 1% |
| 99 | INDEPENDENCE DRILLING SA | 0% |
| 100 | PIONEER DE COLOMBIA SDAD LTDA | 0% |
| 101 | SNF INC | 0% |
| 102 | SUMMUM ENERGY SAS | -1% |
| 103 | Halliburton Latin America S.R.L. Sucursal Colombia | -1% |
| 104 | SERVCIOS ASOCIADOS SAS | -1% |
| 105 | OILFIELD SERVICES Y SUPPLIES SAS | -4% |
| 106 | PERFOTEC SAS EN REORGANIZACION | -4% |
| 107 | GO INTERNATIONAL SAS | -4% |
| 108 | SAR ENERGY SAS EN REORGANIZACION | -4% |
| 109 | Z-COL LLC SUCURSAL COLOMBIA | -5% |
| 110 | MECANICOS ASOCIADOS SAS | -6% |
| 111 | ATINA ENERGY SERVICES CORP SUCURSAL COLOMBIA | -8% | 0
| 112 | SINOPEC INTERNATIONAL PETROLEUM SERVICE CORP COL. | -14% | 0
| 113 | GLOBAL ENERGY & PRODUCTION COMPANY SAS | -15% | 0
| 114 | GYRODATA COLOMBIA LTDA | -16% | 0
| 115 | KENTZ CARIBBEAN SUCURSAL COLOMBIA | -20% | 0
| 116 | OIL BUSINESS SERVICES SAS | -30% | 0
| 117 | Ingenieria y Servicios Ambientales Isa Internacional Ltda en Reorganizacion | -37% | 0
| 118 | CHEMDRILL SAS | -44% | 0
| 119 | DISCOVERY ENERGY SERVICES COLOMBIA SA EN REORGANIZACION | -45% | 0
| 120 | TIET COMPLETION SYSTEMS CORP SUCURSAL COLOMBIA | -49% | 0
| 121 | ESTRELLA INTERNATIONAL ENERGY SERVICES SUCURSAL COLOMBIA | -52% | 0
| 122 | Valiant Artificial Lift Solutions | -59% | 0
| 123 | FRANKS INTERNATIONAL SUCURSAL COLOMBIA | -62% | 0
| 124 | PETREX SA SUCURSAL COLOMBIA | -63% | 0
| 125 | EXCELLENCE LOGGING LATIN AMERICA LIMITED, SUCURSAL CO. | -101% | 0
| 126 | COLREGISTROS SAS EN REORGANIZACION | -155% | 0
| 127 | FLAMINGO OIL SA | -160% | 0
| 128 | SDT DRILLING SOLUTIONS SAS | -162% | 0
| 129 | TDA SUPPLY & SERVICE SA EN REORGANIZACION | -192% | 0
| 130 | ENERGOLD DE COLOMBIA SAS | -214% | 0
| 131 | INNOVEX DOWNHOLE SOLUTIONS SUCURSAL COLOMBIA | -250% | 0
| 132 | HUPECOL OPERATING CO LLC | -275% | 0
| 133 | PETROLEUM GOLD SERVICES SAS EN REORGANIZACION | -328% | 0
| 134 | MAREN FOX S.A. | -373% | 0
| 135 | HELMERICH & PAYNE (COLOMBIA) DRILLING CO | -402% | 0
| 136 | POWER PETROLEOM INTERNATIONAL CO LIMITED | -1490% | 0
| 137 | DESTRELLA PETROLERA DE PANAMA SUCURSAL COLOMBIA | -3711% | 0
| 138 | PERFORACIONES PYRAMID DE COLOMBIA SAS | -31516% | 0
APS