1 Exhibit 21.1 WEATHERFORD INTERNATIONAL, INC. SUBSIDIARY LIST Jurisdiction 708621 Alberta Ltd. Alberta 721260 Alberta Ltd. Alberta A-1 Bit & Tool Co., B.V. Netherlands Aarbakke AS Norway Aarbakke Eindom AS Norway Algerian Oilfield Services S.p.A. Algeria Ampscot Overseas Petroleum Equipment Co., LLC Oman Anbert Cilindros S.A.I.C. Argentina Ancil S.A.I.C. Argentina Baktexas Azerbajan BEI Technology, Inc. Texas Calumet Petroleum Services, Inc. Venezuela CanaRoss Limited Russia Channelview Real Property Inc. Delaware Citra Grant Prideco Marketing Ltd. Jersey Islands CRC-Evans Automatic Welding, Inc. Texas CRC-Evans Pipeline International (UK) Limited U.K. CRC-Evans Services Limited U.K. Dongying Shengli-Highland Company Ltd. China Drill Tube International, Inc. Texas EMI-Electro Magnetica Ispezioni Italia S.r.l. Italy Energy Ventures (Cyprus) Ltd. Cyprus Energy Ventures Far East Limited Hong Kong Energy Ventures Foreign Sales Corp. Barbados Energy Ventures Mid East, Inc. Cayman Islands Enerpro de Mexico, S.A. de C.V. Mexico Enterra Cyprus Limited Cyprus Enterra (U.K.) Limited U.K. Enterra Compression Company Delaware Enterra Compression Investment Company Delaware Enterra International Limited U.K. Enterra Oilfield Rentals Limited Hong Kong Enterra Patco Oilfield Products, Inc. Texas Enterra Rental and Fishing Company Delaware Ercon, Inc. Delaware European Material Inspection (EMI) B.V. Netherlands EVI (Barbados), SRL Barbados EVI Arrow, Inc. Delaware EVI Brasil Comercia Ltda. Brazil EVI Cayman Ltd. Cayman Islands EVI Christiana, Inc. Wisconsin EVI de Peru, SRL Peru EVI de Venezuela, S.A. Venezuela 1 2 EVI France SAS France EVI International, Inc. Delaware EVI do Brasil Comercio e Servicos Ltda. Brazil EVI Oil Tools Ltd. U.K. EVI Watson Packers, Inc. Delaware EVI Weatherford, Inc. Delaware Grant Prideco (Singapore) Pte. Ltd. Singapore Grant Prideco Limited U.K. Grant Prideco S.A. de C.V. Mexico Grant Prideco, Inc. Delaware Grant Prideco, S.A. Switzerland Grant Tubular Finishing Ltd. Hungary Griffin Legrand Limited Partnership Alberta Houston Well Screen Asia Pte. Ltd. Singapore Houston Well Screen Company Texas Immobiliaria Industrial de Veracruz, S.A. de C.V. Mexico Keltic Oil Tools Limited U.K. Kobe International Ltd. Bahamas KSP Logistics Co. Ltd. Thailand Legrand International (1977) Ltd. Barbados McAllister Petroleum Services (Cyprus) Limited Cyprus McMurry-Macco (UK) Lmited U.K. Nodeco A/S Norway Nodeco Ltd. U.K. Oil Field Rental Holdings Limited U.K. Oiltools Weatherford Limited British Virgin Islands Pacific Pump & Supply, Inc. California PETCO Fishing & Rental Tools (UK) Ltd. U.K. Petroleum Equipment Supply Company Louisiana PhlipCo, Inc. Delaware Prideco de Venezuela, S.A. Venezuela Prideco Europe Limited U.K. Pridecomex Holding, S.A. de C.V. Mexico PT Hawes Utama Indonesia Indonesia PT Weatherford Indonesia Indonesia SBS Drilling-and Production Systems GmbH & Co. KG Austria SBS Drilling-and Production-Systems Ltd. Cayman Islands Schoeller-Bleckmann Motovilithinskije Sucker Rod Gmbh Austria ServiciosTec LDC Cayman Islands Subsurface Technology AS Norway SubTech International, Inc. Delaware TA Industries, Inc. Delaware TF de Mexico, S.A. de C.V. Mexico Tech Line Oil Tools (Europe) A/S Norway Tech Line Oil Tools Inc. Delaware Technical Oil Services Ltd. British Virgin Islands Texas Arai, Inc. Delaware Trico Industries, Inc. California Tube-Alloy Capital Corporation Texas Tube-Alloy Corporation Louisiana Tube-Alloy Corporation International Texas 2 3 Van der Horst U.S.A., Inc. Delaware Venstar Ltd. U.K. Venstar, Inc. Delaware Weatherford (Malaysia) Sdn. Bhd. Malaysia Jt. Venture Weatherford (Saudi Arabia) Ltd. Saudi Arabia Weatherford (Thailand) Ltd. Thailand Weatherford (UK) Ltd. U.K. Weatherford/Al-Rushaid Ltd. Saudi Arabia Weatherford Ampscot Ltd. Alberta Weatherford/Lamb, Inc. Delaware Weatherford Abu Dhabi, Ltd. Cayman Islands Weatherford Artificial Lift Systems, Inc. Delaware Weatherford Asia Pacific Pte. Ltd. Singapore Weatherford Australia Pty. Ltd. Australia Weatherford BMW Ltd. Alberta Weatherford Canada Ltd. Canada Weatherford Colombia Ltd. British Virgin Islands Weatherford Compression Canada Ltd. Alberta Weatherford de Mexico S.A. de C.V. Mexico Weatherford East Europe Service GmbH Germany Weatherford Enterra Compression Company, L.P. Delaware Weatherford Enterra S.A. Argentina Weatherford Espana, S.A. Spain Weatherford Eurasia B.V. The Netherlands Weatherford Eurasia Ltd. United Kingdom Weatherford Foreign Sales Corporation Barbados Weatherford France, S.A. France Weatherford Global Compression (Australia) Limited Australia Weatherford Global Compression Foreign Sales Corporation Barbados Weatherford Global Compression Holding, L.L.C. Delaware Weatherford Global Compression Services, L.L.C. Delaware Weatherford Holding GmbH Germany Weatherford Holding U.S., Inc. Delaware Weatherford Industria e Comercio Ltda. Brazil Weatherford KSP Company Limited Thailand Weatherford Latin America, Inc. Panama Weatherford Latin America, S.A. Venezuela Weatherford Management, Inc. Delaware Weatherford Mauritius Limited Africa Weatherford Mediterranea S.p.A. Italy Weatherford Nigeria Ltd. Nigeria Weatherford Norge A/S Norway Weatherford PC Pump Ltd. Alberta Weatherford Oil Tool GesmbH Austria Weatherford Oil Tool GmbH Germany Weatherford Oil Tool Middle East Ltd. British Virgin Islands Weatherford Oil Tool Nederland B.V. Netherlands Weatherford Overseas Products, Ltd. Cayman Islands Weatherford Overseas Services, Ltd. Cayman Islands Weatherford QAF Sdn. Bhd. Brunei Weatherford Services (West Africa) Ltd. Nigeria 3 4 Weatherford Services, Ltd. Bermuda Weatherford Services, S.A. Panama Weatherford Trinidad Limited Trinidad Weatherford U.S., L.P. Louisiana Weatherford, Inc. Panama West Coast International Oilfield Rentals, B.V. Netherlands WEUS Holding, Inc. Delaware WI Products & Equipment, Inc. Cayman Islands WII Rental Company Delaware Worldwide Leasing LDC Cayman Islands XL Systems International, Inc. Delaware XL Systems, Inc. Texas XLS Holding, Inc. Texas XLS Systems Antilles N.V. Netherlands XLS Systems Europe, B.V. Netherlands 4