남아프리카 업스트림 연구

주요 선수 : Arabian Drilling Company(ADC), Schlumberger Limited, Baker Hughes Company, Weatherford International PLC, Transocean Ltd., Saudi Aramco Oil Co.

주요 선수 : Baker Hughes Company, Schlumberger Limited, Weatherford International PLC, NOV Inc., Halliburton Company

주요 선수 : DOF Subsea AS, Fugro NV, Subsea 7 SA, Saipem SpA, Oceaneering International Inc

주요 선수 : Schlumberger Limited, Baker Hughes Company, Halliburton Company, Weatherford International PLC, Oceaneering International, Inc. 

주요 선수 : TechnipFMC PLC, Baker Hughes Company, Schlumberger Limited, Dril-Quip Inc., 전세계 유전 기계

주요 선수 : Aker Solutions ASA, Halliburton Company, Oceaneering International Inc., Schlumberger Limited, Baker Hughes Co

주요 선수 : Baker Hughes Company, Haliburton Company, Schlumberger Limited, Transocean Limited, Saipem SpA

주요 선수 : Baker Hughes Company, Schlumberger Limited, Weatherford International plc, NOV Inc., Halliburton Company

주요 선수 : Schlumberger Limited, Halliburton Company, Weatherford International Plc, Baker Hughes Company, GN Solids Control

주요 선수 : Weatherford International Plc, Schlumberger Limited, Halliburton Company, Baker Hughes Company, China Oilfield Services Limited