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Southwest Petroleum UniversityM-I LLCNational Oilwell Varco LPGEODynamics, Inc.Scientific Drilling International, Inc.Gyrodata, Inc.E.V. Offshore Ltd.Meta Downhole Ltd.Deep Casing Tools Ltd.Abrado, Inc.McCoy Global, Inc.Caledus Ltd.Helmerich & Payne, Inc.Raise Production, Inc.Coretrax Technology Ltd.XACT Downhole Telemetry, Inc.STEP Energy Services Ltd.Wellbore Energy Solutions LLCProduction Sciences, Inc.NOV-BLM SASReactive Downhole Tools Ltd.Darcy Technologies Ltd.Hydra Well Intervention AS
BASF SEPetroChina Co., Ltd.Idemitsu Kosan Co., Ltd.Exxon Mobil Corp.Mobil Corp.Standard Oil Co.Osaka Gas Co., Ltd.Saudi Arabian Oil Co.Schlumberger Technologies, Inc.Standard Oil Co.China National Offshore Oil Corp.China National Offshore Oil Corp.Schlumberger Canada Ltd.JSWChina General Nuclear Power Corp.China General Nuclear Power Corp.Voith GmbH & Co. KGaADuksan Co., Ltd.Dresser Industries, Inc.Dresser Industries, Inc.Beijing Yanshan Petrochemical Co., Ltd.Électricité de France SAElf Atochem SAHalliburton Co.Messer SE & Co. KGaA (Germany)Conoco, Inc.ConocoPhillipsSinopec Oilfield Service Corp.Conoco, Inc.Elf Aquitaine Fertilisants
Dresser Industries, Inc.Dresser Industries, Inc.Petrolite Corp.Camco International, Inc.Weatherford U.S. LPGuizhou Gaofeng Petroleum Machinery Co., Ltd.Thermax Ltd.Baker Hughes ESP, Inc.U.S. Well Services LLCUfa State Petroleum Technological UniversityLubrizol Oilfield Solutions, Inc.Gulf Canada Resources Ltd.The Petroleum Oil & Gas Corporation of South Africa (Pty) Ltd.Essef Corp.Teleco Oilfield Services, Inc.Essef Corp.Enpro Subsea Ltd.Fracmaster Ltd.AVA International CorpShengli Petroleum Administrative BureauTuboscope Vetco International, Inc.Tuboscope Vetco International, Inc.Ruhrpumpen GmbHTechnip SAAbrado, Inc.POM, Inc.HYUNDAI Corp.Weatherford Canada Ltd.Control Flow, Inc.Shengli Oil Field Dongsheng Precision Petroleum Dev Co., Ltd.
Analog Devices, Inc.Areva NP SASAreva NP SASAVL List GmbHAmpex Corp.Zhejiang Chint Electrics Co., Ltd.United States Surgical Corp.Draper, Inc.Mpac Group PlcBL Technology, Inc.Stewart-Warner Corp.Chino Corp.Aichi Tokei Denki Co., Ltd.DKK-TOA Corp.IDEXX Laboratories, Inc.Showa Aircraft Industry Co., Ltd.Varco International, Inc.Shenzhen Clou Electronics Co., Ltd.Chongqing Chuanyi Automation Co., Ltd.Chongqing Chuanyi Automation Co., Ltd.Technology Partnership PlcOVAL Corp.Spectris PlcShanghai Electrical Apparatus Research Inst. (Group) Co. LtdHach Co.Toyo Kanetsu KKEwatt Technology Co. Ltd.Ewatt Technology Co. Ltd.Focused Photonics (Hangzhou), Inc.Kyowa Electronic Instruments Co., Ltd.