| ABI HOLDINGS LIMITED COLOMBIA | BOGOTA D.C. |
| ALKHORAYEF PETROLEUM COLOMBIA | BOGOTA D.C. |
| ATINA ENERGY SERVICES CORP SUCURSAL COLOMBIA | BOGOTA D.C. |
| ATP INGENIERIA SAS EN REORGANIZACION | META |
| ATS AMERICAN TUBULAR SERVICES | BOGOTA D.C. |
| AZUL ENERGY COLOMBIA SAS | BOGOTA D.C. |
| BAKER HUGHES DE COLOMBIA | BOGOTA D.C. |
| BRASERV PETROLEO LTDA SUCURSAL COLOMBIANA | BOGOTA D.C. |
| BUENAVISTA ENERGY INVESTMENTS INC SUCURSAL COLOMBIA | BOGOTA D.C. |
| BULLDOG CEMENTING & PUMPING SERVICES COLOMBIA LTD | BOGOTA D.C. |
| C P P TESTING SAS | CUNDINAMARCA |
| CAMERON COLOMBIA LLC SUCURSAL COLOMBIANA | BOGOTA D.C. |
| CAPITAL RESOURCES AND INVESTMENT | BOGOTA D.C. |
| CEDULA DE EXTRANJERIA | BOGOTA D.C. |
| CHEMDRILL SAS | BOGOTA D.C. |
| CNEOG COLOMBIA SUCURSAL COLOMBIA | BOGOTA D.C. |
| COL PETROLEUM SERVICES SAS | BOGOTA D.C. |
| COLOMBIAN GREEN ENERGY SAS | BOGOTA D.C. |
| COLREGISTROS SAS EN REORGANIZACION | BOGOTA D.C. |
| COMPLETION SERVICES SUCURSAL COLOMBIA | BOGOTA D.C. |
| CORE LABORATORIES | BOGOTA D.C. |
| CPVEN SUCURSAL COLOMBIA | BOGOTA D.C. |
| DATALOG COLOMBIA SAS | BOGOTA D.C. |
| DESTRELLA PETROLERA DE PANAMA SUCURSAL COLOMBIA | BOGOTA D.C. |
| DISCOVERY ENERGY SERVICES COLOMBIA SA EN REORGANIZACION | BOGOTA D.C. |
| DRILLING & PRODUCTION SERVICES SAS | HUILA |
| DRILLING AND WORKOVER SERVICES SAS | BOGOTA D.C. |
| EAGLEBURGMANN COLOMBIA SAS | CUNDINAMARCA |
| ENERFLEX COMPRESSION SERVICES SAS | BOGOTA D.C. |
| ENERGOLD DE COLOMBIA SAS | BOGOTA D.C. |
| ENERGY GEOPHYSICAL SERVICES SAS | BOGOTA D.C. |
| EQUIPO PETROLERO CORP SA SUCURSAL COLOMBIA | CUNDINAMARCA |
| ERAZO VALENCIA S.A.S. | CUNDINAMARCA |
| ESP ENERGY GROUP SAS | SANTANDER |
| ESSENTIAL ENERGY SERVICES SA SUCURSAL COLOMBIA | BOGOTA D.C. |
| ESTRELLA INTERNATIONAL ENERGY SERVICES SUCURSAL COLOMBIA | BOGOTA D.C. |
| ESTRELLA PETROLERA DE COLOMBIA S.A.S. | BOGOTA D.C. |
| EXCELLENCE LOGGING LATIN AMERICA LIMITED, SUCURSAL CO. | CUNDINAMARCA |
| EXPRO GULF LIMITED | BOGOTA D.C. |
| EXTERRAN ENERGY SOLUTIONS LP SUCURSAL COLOMBIANA | BOGOTA D.C. |
| FLAMINGO OIL SA | CUNDINAMARCA |
| FLUIDOS Y SERVICIOS SAS | HUILA |
| FRANKS INTERNATIONAL SUCURSAL COLOMBIA | BOGOTA D.C. |
| GENERAL RIGS SERVICES SAS | CUNDINAMARCA |
| GLOBAL ENERGY & PRODUCTION COMPANY SAS | CUNDINAMARCA |
| GO INTERNATIONAL SAS | BOGOTA D.C. |
| GUACAMAYA OIL SERVICES SAS | BOGOTA D.C. |
| GYRODATA COLOMBIA LTDA | BOGOTA D.C. |
| Halliburton Latin America S.R.L. Sucursal Colombia | BOGOTA D.C. |
| HANNEI SAS | BOGOTA D.C. |
| HELMERICH & PAYNE (COLOMBIA) DRILLING CO | BOGOTA D.C. |
| HOLSAN SAS EN REORGANIZACION | BOGOTA D.C. |
| HUPECOL OPERATING CO LLC | BOGOTA D.C. |
| HV SERVICES & SUPPPLY SAS | BOGOTA D.C. |
| INDEPENDENCE DRILLING SA | BOGOTA D.C. |
| Ingenieria y Servicios Ambientales Isa Internacional Ltda en Reorganizacion | BOGOTA D.C. |
| INGENIERIA Y TECNOLOGIA DE SERVICIOS S.A.S. | BOGOTA D.C. |
| INNOVEX DOWNHOLE SOLUTIONS SUCURSAL COLOMBIA | BOGOTA D.C. |
| INTEGRAL DRILLING IDS INC SUCURSAL COLOMBIA | BOGOTA D.C. |
| INVERSIONES MORENO ULLOA SAS | BOGOTA D.C. |
| ISMOCOL SA | BOGOTA D.C. |
| ITS ENERGY SERVICES SUCURSAL COLOMBIA | BOGOTA D.C. |
| KENTZ CARIBBEAN SUCURSAL COLOMBIA | BOLIVAR |
| KOCH MINERALS COLOMBIA S.A.S | BOGOTA D.C. |
| LOS ANGELES OFS SUCURSAL COLOMBIA | BOGOTA D.C. |
| LUPATECH OFS SAS | BOGOTA D.C. |
| MAPLE OIL TOOLS SAS | SANTANDER |
| MAREN FOX S.A. | BOGOTA D.C. |
| MASSY ENERGY COLOMBIA SAS | BOGOTA D.C. |
| MECANICOS ASOCIADOS SAS | BOGOTA D.C. |
| MIDLAND OIL TOOLS COLOMBIA S.A.S | BOGOTA D.C. |
| NABORS DRILLING INTERNATIONAL LTD BERMUDA | BOGOTA D.C. |
| NATIONAL OILWELL VARCO DE COLOMBIA | BOGOTA D.C. |
| NEW LIFT SOLUTIONS BV SUCURSAL COLOMBIA | BOGOTA D.C. |
| NLS SAS | CUNDINAMARCA |
| NOV DOWNHOLE DE COLOMBIA | BOGOTA D.C. |
| OBRAS MONTAJES Y CONSJLTORIAS LTDA | SANTANDER |
| OIL BUSINESS SERVICES SAS | BOGOTA D.C. |
| OILFIELD SERVICES Y SUPPLIES SAS | CUNDINAMARCA |
| OLEODUCTO AL PACIFICO SAS | BOGOTA D.C. |
| OPERACION Y MANTENIMIENTO INTEGRAL DE ACTIVOS COLOMBIA SAS | BOGOTA D.C. |
| PACIFIC PETROLEUM ENERGY SA | BOGOTA D.C. |
| PARKER DRILLING COMPANY INTERNATIONAL LIMITED | BOGOTA D.C. |
| PARKO SERVICES SA | BOGOTA D.C. |
| PASON COLOMBIA SAS | BOGOTA D.C. |
| PERFORACIONES PYRAMID DE COLOMBIA SAS | BOGOTA D.C. |
| PERFOTEC SAS EN REORGANIZACION | BOGOTA D.C. |
| PETREX SA SUCURSAL COLOMBIA | BOGOTA D.C. |
| PETRODYNAMIC PETROLEUM SERVICES SAS | CUNDINAMARCA |
| PETROLAND SAS EN REORGANIZACION | BOGOTA D.C. |
| PETROLEUM GOLD SERVICES SAS EN REORGANIZACION | BOGOTA D.C. |
| PETROSERVICES COMPANY SAS | CASANARE |
| PETROTECH DE COLOMBIA SAS | BOGOTA D.C. |
| PETROWORKS SAS | ATLANTICO |
| PIONEER DE COLOMBIA SDAD LTDA | BOGOTA D.C. |
| PIPE SUPPLY AND SERVICES SAS | BOGOTA D.C. |
| PM&F FISHING OIL SERVICES SA | BOGOTA D.C. |
| POLYNEX SAS | CUNDINAMARCA |
| POWER PETROLEOM INTERNATIONAL CO LIMITED | BOGOTA D.C. |
| PROMISOL S.A.S. | ATLANTICO |
| PROVEEDORA INTERNACIONAL DE TALADROS SAS | BOGOTA D.C. |
| QMAX SOLUTIONS COLOMBIA | BOGOTA D.C. |
| RADRILL SA | BOGOTA D.C. |
| RHEMA INTERNACIONAL SAS | BOGOTA D.C. |
| S&J FULL SERVICES SAS | PUTUMAYO |
| SANDER GEOPHYSICS LIMITED SUCURSAL COLOMBIA | BOGOTA D.C. |
| SAR ENERGY SAS EN REORGANIZACION | BOGOTA D.C. |
| SCHLUMBERGER SURENCO S.A. | BOGOTA D.C. |
| SDT DRILLING SOLUTIONS SAS | BOGOTA D.C. |
| SERINPET LTDA | BOGOTA D.C. |
| SERTECPET DE COLOMBIA SA | BOGOTA D.C. |
| SERVCIOS ASOCIADOS SAS | HUILA |
| SERVICIOS PETROLEROS Y ELECTRICOS SAS | BOGOTA D.C. |
| SHANDONG PETROLEUM EQUIPMENT CO LTD. | BOGOTA D.C. |
| SINOPEC INTERNATIONAL PETROLEUM SERVICE CORP COL. | BOGOTA D.C. |
| SLS ENERGY SAS EN REORGANIZACION | BOGOTA D.C. |
| SNF INC | BOGOTA D.C. |
| SONOMA COLOMBIA SAS | BOGOTA D.C. |
| STORK TECHNICAL SERVICES HOLDING BV SUCURSAL COLOMBIA | BOGOTA D.C. |
| SUELOPETROL CA SUCURSAL COLOMBIA | BOGOTA D.C. |
| SUMMUM ENERGY SAS | BOGOTA D.C. |
| SYGMA PETROLEUM COMPANY SA | BOGOTA D.C. |
| TDA SUPPLY & SERVICE SA EN REORGANIZACION | BOGOTA D.C. |
| TECNOLOGIA ECOLOGICA DEL ORIENTE SAS | CUNDINAMARCA |
| TGT GAMAS SAS | CUNDINAMARCA |
| TIET COMPLETION SYSTEMS CORP SUCURSAL COLOMBIA | BOGOTA D.C. |
| T-ONE ENERGY SAS | BOGOTA D.C. |
| TTP WELL SERVICES SA | BOGOTA D.C. |
| TUBULAR RUNNING & RENTAL SERVICES SAS | BOGOTA D.C. |
| TUCKER ENERGY SERVICES S.A | CUNDINAMARCA |
| TUSCANY SOUTH AMERICA LTD SUCURSAL COLOMBIA | BOGOTA D.C. |
| Valiant Artificial Lift Solutions | CUNDINAMARCA |
| VARISUR S.A.S | HUILA |
| Weatherford Colombia Limited | BOGOTA D.C. |
| WELLTEC LATIN AMERICA APS SUCURSAL COLOMBIANA | BOGOTA D.C. |
| WILSON WORKOVER CORP SUCURSAL COLOMBIA | BOGOTA D.C. |
| XPLORE DRILLING SERVICES SUCURSAL COLOMBIA | BOGOTA D.C. |
| Z-COL LLC SUCURSAL COLOMBIA | BOGOTA D.C. |
APS