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Samsung Heavy Industries Co., Ltd.DAEWOO SHIPBUILDING & MARINE ENGINEERING Co., Ltd.China National Offshore Oil Corp.China National Offshore Oil Corp.Halliburton Co.Petróleo Brasileiro SAChina Oilfield Services Ltd.Vetco Gray, Inc.Varco International, Inc.Oceaneering International, Inc.Vallourec SADril-Quip, Inc.National-Oilwell, Inc.Yantai CIMC Raffles Offshore Ltd.Transocean Sedco Forex Ventures Ltd.Bluewater Energy Services BVScientific Drilling International, Inc.Twister BVTrican Well Service Ltd.Anadarko Petroleum Corp.Innovex Downhole Solutions, Inc.Valaris PlcBergstrom, Inc.Centek Ltd.Worldwide Oilfield Machine, Inc.MODEC, Inc.Japan Drilling Co., Ltd.Stena Drilling Ltd.Calfrac Well Services Ltd.Trendsetter Engineering, Inc.
Sichuan Honghua Petroleum Equipment Co. Ltd.Guangxi Yuchai Heavy Industry Co., LtdShanghai Jintai Engineering Machinery Co. Ltd.Bentec GmbH Drilling & Oilfield SystemsBridon International Ltd.Wuxi Jinfan Drilling Equipment Co., Ltd.Quality Intervention ASNabors Industries, Inc.Shaanxi Construction Machinery Co., Ltd.Comacchio SrlJikai Equipment Manufacturing Co., Ltd.Maersk Supply Service A/SDrillform Technical Services Ltd.Robotic Drilling Systems ASSchramm, Inc.Mazagon Dock Shipbuilders Ltd.Dolfines SAAtlas Copco (India) Ltd.Foremost Industries, Inc.Precision Drilling Corp.Automated Rig Technologies Ltd.Arctic Drilling Co. Ltd.Ensign Drilling, Inc.PRAKLA Bohrtechnik GmbHParker Drilling Co.
Samsung Heavy Industries Co., Ltd.DAEWOO SHIPBUILDING & MARINE ENGINEERING Co., Ltd.China National Offshore Oil Corp.China National Offshore Oil Corp.Halliburton Co.China Oilfield Services Ltd.Oceaneering International, Inc.Vallourec SADril-Quip, Inc.Yantai CIMC Raffles Offshore Ltd.Bluewater Energy Services BVScientific Drilling International, Inc.Twister BVTrican Well Service Ltd.Valaris PlcTransocean Offshore Deepwater Drilling, Inc.MODEC, Inc.Helix Energy Solutions Group, Inc.Matrix Composites & Engineering Ltd.Calfrac Well Services Ltd.Trendsetter Engineering, Inc.Friede & Goldman Ltd.Technip USA, Inc.Diamond Offshore Drilling, Inc.Precision Drilling Corp.Sembcorp Marine Ltd.MISC Bhd.Altus Intervention Ltd.
China National Offshore Oil Corp.China National Offshore Oil Corp.CNOOC Energy Technology & Services Ltd.The Lee Co.China Oilfield Services Ltd.US Synthetic Corp.Tokyo Keiso Co. Ltd.Schlumberger Norge ASSouthern Mills, Inc.Petroleum Geo-Services, Inc.Musasino Co. Ltd.American Shale Oil LLCWuhan Fanso Technology Co., Ltd.Wild Well Control, Inc.Weihai Sunfull Electronics Group Co. Ltd.Blue Spark Energy, Inc.Varec, Inc.Precision Drilling Corp.Hunter Group ASAConcept Systems Ltd.RSCC Wire & Cable LLCDelmon Industrie SASMinatome CorpAltus Intervention Ltd.Aquablast Ltd.Custom Electronics, Inc.Oil & Gas Rental Services, Inc.International Energy Corp.
Halliburton Energy Services, Inc.Halliburton Co.ConocoPhillipsSmith International, Inc.Marathon Oil Co.CNPC Bohai Drilling Engineering Co. Ltd.CNPC Bohai Drilling Engineering Co. Ltd.China Oilfield Services Ltd.Ceca SATracto Technik GmbH & Co. KGHerrenknecht AGElliott Co.Membrane Technology & Research, Inc.Scientific Drilling International, Inc.Trican Well Service Ltd.Hammelmann GmbHAnadarko Petroleum Corp.Apache Corp.Gyrodata, Inc.Valaris PlcYantai Jereh Oilfield Services Group Co. Ltd.Beijing Liuhe Greatness Technology Co., Ltd.Netzsch Gertebau GmbHNexen Corp.Leistritz AGDI Corp.Motive Drilling Technologies, Inc.Devon Energy Corp.Eco-Tec Ltd.TAM International, Inc.
China University of Petroleum (East China)China University of Petroleum (East China)Southwest Petroleum UniversityChengdu University of TechnologyCNPC Xibu Drilling Engineering Co., Ltd.CNPC Xibu Drilling Engineering Co., Ltd.GTI EnergyChina Petroleum Pipeline Bureau Engineering Corp.China Petroleum Engineering & Construction Corp.China Petroleum Engineering & Construction Corp.Tyumen State Oil & Gas UniversityColorado School of MinesUniversiti Teknologi PetronasNorris Industries, Inc.China Petroleum Engineering Co. Ltd.China Petroleum Engineering Co. Ltd.Ufa State Petroleum Technological UniversityBeijing Petrochemical Engineering Co., Ltd.Beijing Petrochemical Engineering Co., Ltd.Wison Engineering Ltd.China National Chemical Engineering No16 Construction Co. LtdPandit Deendayal Petroleum UniversityThe University of TulsaUniversity of ReginaHenan ZhongTuo Petroleum Engineering Technology Co., Ltd.CoretranSinoFTS Petroleum Services Co., Ltd.Xi'an Maurer Petroleum Engineering Laboratory Co., ltd.Xinjiang Land Fine Petrochemical Co. Ltd.The University of Stavanger
Samsung Heavy Industries Co., Ltd.DAEWOO SHIPBUILDING & MARINE ENGINEERING Co., Ltd.Zhuzhou CRRC Times Electric Co., Ltd.Zhuzhou CRRC Times Electric Co., Ltd.Naval University of EngineeringCSSC Huangpu Wenchong Shipbuilding Co., Ltd.CSSC Huangpu Wenchong Shipbuilding Co., Ltd.Guangzhou Shipyard International Co., Ltd.CSSC Offshore & Marine Engineering (Group) Co., Ltd.KITZ Corp.STX Offshore & Shipbuilding Co., Ltd.K Shipbuilding Co., Ltd.Anshan Iron & Steel Group Corp.Admiral Makarov National University of ShipbuildingHBIS Group Co., Ltd.J. Ray McDermott SAFincantieri SpAJiangsu Safety Wire Rope Co., Ltd.PLA Dalian Naval AcademyTZ (Tianjin) Binhai Heavy Machinery Co., Ltd.TZ (Tianjin) Binhai Heavy Machinery Co., Ltd.McDermott, Inc.Baggerwerken Decloedt & Zoon NVBestway Marine & Energy Technology Co., Ltd.Oshima Shipbuilding Co., Ltd.Shanghai Zhenhua Heavy Industries Qidong Marine Eng Co. Ltd.Zhoushan Changhong International Shipbuilding Co., Ltd.Zhejiang Yuxi Corrosion Control Corp.Qingdao Advanced Marine Material Technology Co., Ltd.Changshu Guorui Technology Co., Ltd.