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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.Maersk Drilling A/SUfa State Petroleum Technological UniversityBeijing Petrochemical Engineering Co., Ltd.Beijing Petrochemical Engineering Co., Ltd.Wison Engineering Ltd.Daqing Oilfield Construction Group Co., Ltd.China National Chemical Engineering No16 Construction Co. LtdChina National Chemical Engineering No16 Construction Co. LtdPandit Deendayal Petroleum UniversityThe University of TulsaHenan ZhongTuo Petroleum Engineering Technology Co., Ltd.University of ReginaHenan ZhongTuo Petroleum Engineering Technology Co., Ltd.Coretran
Halliburton Co.CNPC Bohai Drilling Engineering Co. Ltd.CNPC Bohai Drilling Engineering Co. Ltd.China Oilfield Services Ltd.Varco International, Inc.Daido Kogyo Co., Ltd.Camco International, Inc.Dril-Quip, Inc.C. & J. Clark International Ltd.Anton Oilfield Services (Group) Ltd.Trican Well Service Ltd.DynaEnergetics GmbH & Co. KGRPC, Inc.Innovex Downhole Solutions, Inc.Gyrodata, Inc.Valaris PlcTuboscope Vetco International, Inc.Tuboscope Vetco International, Inc.Centek Ltd.Tong Oil Tools Co., Ltd.Premier Coil Solutions, Inc.Bilco Tools, Inc.Calfrac Well Services Ltd.Stimline ASSchoeller-Bleckmann Oilfield Equipment AGAnTech Ltd.Rosneft Oil Co.Magnum Oil Tools International Ltd.FHE USA LLCHydra-Rig, Inc.
China Oilfield Services Ltd.Drillmec SpASun Drilling Products Corp.Rival Downhole Tools LCHubei Jianghan Petroleum Instrument & Meter Co., Ltd.Hubei Jianghan Petroleum Instrument & Meter Co., Ltd.Lupatech SABeijing Yilong Hengye Petroleum Engineering Tech Co., Ltd.Advantec ASBalance Point Control BVTotal Energy Services, Inc.Blue Ocean Technologies LLC