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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.Tokyo Gas Co., Ltd.China National Offshore Oil Corp.China National Offshore Oil Corp.Schlumberger Canada Ltd.JSWChina General Nuclear Power Corp.China General Nuclear Power Corp.Chevron U.S.A., Inc.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.
Halliburton Energy Services, Inc.Southwest Petroleum UniversityClariant International AGHalliburton Co.ConocoPhillipsMarathon Oil Co.CNPC Bohai Drilling Engineering Co. Ltd.CNPC Bohai Drilling Engineering Co. Ltd.China Oilfield Services Ltd.BGP, Inc.CoorsTek, Inc.Ceca SAION Geophysical Corp.Verenium Corp.CARBO Ceramics, Inc.Elliott Co.Energy Recovery, Inc.Scientific Drilling International, Inc.Trican Well Service Ltd.Hammelmann GmbHOasys Water, Inc.RPC, Inc.Apache Corp.Gyrodata, Inc.Valaris PlcNetzsch Gertebau GmbHNexen Corp.Leistritz AGSandbox Enterprises LLCDI Corp.
Nippon Petrochemicals Co., Ltd.Afton Chemical Corp.Gulf Oil LPStanadyne Corp.Admiral Makarov National University of ShipbuildingNippon Petroleum Refining Co. Ltd.Hartridge Ltd.Oxonica Ltd.CITGO Petroleum Corp.Clean Air Power, Inc.Bml Munjal UniversityCTS Ceramics Denmark A/SKurz-Kasch, Inc.Clean Fuels Technology, Inc.DynaCERT, Inc.Engineuity Research & Development Ltd.Busan City Gas Co., Ltd.Primus Green Energy, Inc.Sanko Seiki Co Ltd.Chaitanya Bharathi Institute of TechnologyRive Technology, Inc.Forge Hydrocarbons Corp.Sylvatex, Inc.Blackburn Energy, Inc.ClearFlame Engines, Inc.Pirelli & C. Eco Technology SpaFloScan Instrument Co., Inc.Sri Venkateswara College of EngineeringRaffineria di Roma SpALittelfuse Italy Srl