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EXHIBIT 21.1
 WEATHERFORD INTERNATIONAL LTD.
LIST OF SUBSIDIARIES AND AFFILIATES
 NAME
    
    JURISDICTION315613 Alberta Ltd.
    
    Alberta708621 Alberta Ltd.
    
    Alberta721260 Alberta Ltd.
    
    Alberta1186443 Alberta Ltd.
    
    AlbertaA-1 Bit & Tool Co., B.V.
    
    NetherlandsAdvantage R&D, Inc.
    
    DelawareAim Oil Tools, Inc.
    
    TexasAir Drilling Services Bolivia S.R.L.
    
    BoliviaAir Drilling Services Colombia Limited
    
    ColombiaAir Drilling Services de Venezuela, C.A.
    
    VenezuelaAlgerian Oilfield Services S.p.A.
    
    AlgeriaAlpine Oil Services (Cyprus) Ltd.
    
    CyprusAlpine Oil Services Inc.
    
    North DakotaAlpine Oil Services International Ltd.
    
    BarbadosAmpscot Overseas Petroleum Equipment Co., LLC
    
    OmanAquatronic Limited
    
    U.K.Artex Bolivia S.A.
    
    BoliviaArtex de Venezuela C.A.
    
    VenezuelaArtex S.A.
    
    ArgentinaAstec Developments Limited
    
    U.K.B. D. Kendle Engineering Limited
    
    U.K.Bakke Oil Tools AS
    
    NorwayBakke Technology AS
    
    NorwayBaktexas
    
    AzerbaijanBasin Tools & Service, Inc.
    
    North DakotaBBL Aust. Pty Ltd
    
    AustraliaBBL Downhole Tools Limited
    
    U.K.BFG Investments Ltd.
    
    British Virgin IslandsBit & Tool A-1 S.r.l.
    
    ItalyBOSS Oilfield Services Limited
    
    U.K.Brit Bit Limited
    
    U.K.Calumet Petroleum Services, S.A.
    
    Venezuela




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NAME
    
    JURISDICTIONCardium International Limited
    
    Hong KongCardium Investments (Barbados) Limited
    
    BarbadosCardium Tool International Limited
    
    BarbadosCase Services, Inc.
    
    TexasClearwater International, L.L.C.
    
    DelawareColumbia Oilfield Supply, Inc.
    
    DelawareColombia Petroleum Services Corp.
    
    DelawareCommunication Rentals Limited
    
    U.K.Contra-Shear Separation Technologies Limited
    
    New ZealandCRC-Evans Automatic Welding, Inc.
    
    TexasCRC-Evans Holland, B.V.
NetherlandsCRC-Evans Pipeline International (UK) Limited
    
    U.K.CRC-Evans Services Limited
    
    U.K.CTC-Empresa Tecnina e Comercial de Equipamentos Ltda.
    
    BrazilDArcy Petroleum Ltd.
    
    BermudaDailey de Venezuela, S.A.
    
    VenezuelaDailey del Peru S.A.
    
    PeruDailey IDS Limited
    
    U.K.Dailey International Sales Corporation
    
    DelawareDaquing Computalog Rainbow Geotechnical Development Corp. Ltd.
    
    ChinaDesert Rig Operations, Inc.
    
    Cayman IslandsDesign Engineering Limited
    
    U.K.Directional Wireline Engineering Services (Nigeria) Limited
    
    NigeriaDownhole Technology Limited
    
    U.K.e2 Tech Limited
    
    U.K.Edinburgh Petroleum Equipment Limited
    
    U.K.Edinburgh Petroleum Services Americas Incorporated
    
    TexasEdinburgh Petroleum Services de Mexico S.A. de C.V.
    
    MexicoEdinburgh Petroleum Services de Venezuela, C.A.
    
    VenezuelaEdinburgh Petroleum Services Limited
    
    U.K.EMI-ElettroMagnetica Ispezioni Italia S.r.l.
    
    ItalyEnergy Ventures (Cyprus) Ltd.
    
    CyprusEnergy Ventures Far East Limited
    
    Hong KongEnergy Ventures Investments Limited
    
    U.K.Energy Ventures, L.L.C.
    
    DelawareEnterra (U.K.) Limited
    
    U.K.Enterra International Limited
    
    U.K.Enterra Oilfield Rentals Limited
    
    Hong KongEnterra Patco Oilfield Products, Inc.
    
    TexasEnterra Rental and Fishing Company
    
    DelawareeProduction Solutions U.K. Ltd.
    
    U.K.eProduction Solutions, Inc.
    
    TexasEPS Resources S.A. de C.V.
    
    MexicoEuropean Material Inspection (EMI) B.V.
    
    Netherlands




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NAME
    
    JURISDICTIONEVI (Barbados), SRL
    
    BarbadosEVI de Venezuela, S.A.
    
    VenezuelaEVI Weatherford, Inc.
    
    DelawareExpio Limited
    
    U.K.Fiberspar Linepipe Canada Ltd.
    
    AlbertaFiberspar Linepipe LLC
    
    DelawareFishing Services Limited
    
    U.K.Fleet Cementers, Inc.
    
    TexasGeneral Pipe Service Bolivia S.R.L.
    
    BoliviaGeneral Pipe Service, Inc.
    
    PanamaGlobal Air Drilling Services Ltd.
    
    AlbertaHouston Well Screen Asia Pte. Ltd.
    
    SingaporeHouston Well Screen Company
    
    TexasHuellas Oilfield Equipment & Services, Inc.
    
    DelawareHunter Road I GP, LLC
    
    TexasHunter Road I, LP
    
    TexasHunter Road II GP, LLC
    
    TexasHunter Road II, LP
    
    TexasHycal Energy Research Laboratories Ltd.
    
    AlbertaIndependent Integrated Services Limited
    
    U.K.International Nitrogen Services LLC
    
    DelawareInternational Petroleum Equipment Limited
    
    U.K.International Petroleum Equipment Norge A/S
    
    NorwayInternational Petroleum Services, Inc.
    
    DelawareJ.D. Investments Bonaire N.V.
    
    Netherlands AntillesJohnson Filtration Systems SAS
    
    FranceJohnson Screens (Australia) Pty Ltd
    
    AustraliaJohnson Screens (India) Limited
    
    IndiaJohnson Screens Japan Limited
    
    JapanJohnson Screens Ltda.
    
    BrazilJohnson Screens Venezuela, C.A.
    
    VenezuelaJohnson Screens, Inc.
    
    DelawareKeltic Oil Tools Limited
    
    U.K.Kenting Drilling APS
    
    DenmarkKey International Drilling Company Limited
    
    BermudaKobe International Ltd.
    
    BahamasKopp International Pipeline Services L.L.C.
    
    OmanMcAllister Petroleum Services (Cyprus) Limited
    
    CyprusMcMurry-Macco (UK) Limited
    
    U.K.Mid-Europe Supply Limited
    
    U.K.Morrison McLean Associates Limited
    
    U.K.Multi Operational Service Tankers Inc. (Panama)
    
    PanamaOffshore Rentals Deutschland GmbH
    
    Germany




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NAME
    
    JURISDICTIONOffshore Rentals Limited
    
    U.K.Oil Field Rental Holdings Limited
    
    U.K.OilPatch Enterprises Internacional, S.A. de C.V.
    
    MexicoOilwell Production Services Limited
    
    U.K.OptoPlan A.S.
    
    NorwayOrwell Group De Venezuela C.A.
    
    VenezuelaOrwell Group Limited
    
    U.K.P.D. Drilling Holdings Inc.
    
    BarbadosP.D. Technical Services Inc.
    
    BarbadosPD Chicontepec, S. de R.L. de C.V.
    
    MexicoPD Global Employment Corporation
    
    AlbertaPD Holdings (USA) L.P.
    
    DelawarePD Holdings Mexicana S. de R.L. de C.V.
    
    MexicoPD International Leasing Inc.
    
    BarbadosPD International Services Inc.
    
    AlbertaPD International, LLC
    
    TexasPD Mexicana, S. de R.L. de C.V.
    
    MexicoPD Oilfield Services Mexicana, S. de R.L. de C.V.
    
    MexicoPD Technical Services Mexicana, S. de R.L. de C.V.
    
    MexicoPDI Oilfield Services (BVI) Ltd.
    
    British Virgin IslandsPetco Fishing & Rental Tools (UK) Limited
    
    U.K.Petroline Wellsystems Limited
    
    U.K.Pipetest Service Sp.Zo.o.
    
    PolandPolar Completions (U.S.) Inc.
    
    DelawarePowell Engineering Company Limited
    
    U.K.Powerflo Rentals (Dubai) LLC
    
    U.A.E.Powerflo Rentals Limited
    
    U.K.Powerflo Rentals Norge A/S
    
    NorwayPowerflo Systems Limited
    
    U.K.PowerGEN Rentals Limited
    
    U.K.Precision Capital Management Hungary Limited Liability Company
    
    HungaryPrecision do Brasil Servicos de Energia Ltda.
    
    BrazilPrecision Drilling (Cyprus) Limited
    
    CyprusPrecision Drilling (Dorood) Kish PJSC
    
    IranPrecision Drilling (Egypt) LLC
    
    EgyptPrecision Drilling Asset Holdings Inc.
    
    British Virgin IslandsPrecision Drilling de Venezuela Caracas, C.A.
    
    VenezuelaPrecision Drilling de Venezuela, C.A.
    
    VenezuelaPrecision Drilling Desert Rig Holdings Inc.
    
    British Virgin IslandsPrecision Drilling GP, Inc.
    
    DelawarePrecision Drilling Holdings, Inc.
    
    DelawarePrecision Drilling International (Australia) Pty. Ltd.
    
    AustraliaPrecision Drilling International (BVI) Ltd.
    
    British Virgin Islands




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NAME
    
    JURISDICTIONPrecision Drilling International B.V.
    
    NetherlandsPrecision Drilling LP, Inc.
    
    DelawarePrecision Drilling Services (Australia) Pty. Ltd.
    
    AustraliaPrecision Drilling Services (Malaysia) Sdn. Bhd.
    
    MalaysiaPrecision Drilling Services (Netherlands) B.V.
    
    NetherlandsPrecision Drilling Services (Oman) & Co. LLC
    
    OmanPrecision Drilling Services (Singapore) Pte. Ltd.
    
    SingaporePrecision Drilling Services (Thailand) Ltd.
    
    ThailandPrecision Drilling Services (UK) Ltd.
    
    U.K.Precision Drilling Services Algeria EURL
    
    AlgeriaPrecision Drilling Services Argentina S.A.
    
    ArgentinaPrecision Drilling Services M.E. W.L.L.
    
    United Arab EmiratesPrecision Drilling Services Saudi Arabia Ltd.
    
    Saudi ArabiaPrecision Drilling Technology Services Group (USA) Inc.
    
    DelawarePrecision Energy International Ltd.
    
    AlbertaPrecision Energy Services (Australia) Pty. Limited
    
    AustraliaPrecision Energy Services (Barbados) Ltd.
    
    BarbadosPrecision Energy Services (BVI) Ltd.
    
    British Virgin IslandsPrecision Energy Services (Cyprus) Limited
    
    CyprusPrecision Energy Services CIS
    
    RussiaPrecision Energy Services Colombia Ltd.
    
    AlbertaPrecision Energy Services GmbH
    
    GermanyPrecision Energy Services Ltd.
    
    AlbertaPrecision Energy Services Saudi Arabia Ltd.
    
    Saudi ArabiaPrecision Energy Services, Inc.
    
    DelawarePrecision Holdings (UK) Limited
    
    U.K.Precision Middle East Holding (BVI) Ltd.
    
    British Virgin IslandsPrecision Oilfield Services, LLP
    
    TexasPrecision Pacific Holding (BVI) Ltd.
    
    British Virgin IslandsPrecision USA Holdings, Inc.
    
    DelawareProject Management Services, S. de R.L. de C.V.
    
    MexicoPT Hawes Utama Indonesia
    
    IndonesiaPT Precision Energy Services (Indonesia)
    
    IndonesiaPT Weatherford Indonesia
    
    IndonesiaPT. Wira Insani
    
    IndonesiaPump Rentals (International) Limited
    
    U.K.Pyrosul International Inc.
    
    AlbertaQuality Commissioning Limited
    
    U.K.Quality Machining Services Limited
    
    U.K.R.S.T. Projects Limited
    
    U.K.Recovery Systems Limited
    
    U.K.Reeves Oilfield Services Ltd.
    
    U.K.Reeves Wireline International Limited
    
    U.K.




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NAME
    
    JURISDICTIONReeves Wireline Investments Limited
    
    U.K.Reeves Wireline Services (New Zealand) Limited
    
    New ZealandReeves Wireline Services Limited
    
    U.K.Reeves Wireline Services Limited u. Co. GmbH
    
    GermanyReeves Wireline Technologies Limited
    
    U.K.Richdear Holdings Limited
    
    CyprusSchoeller-Bleckmann Motovilithinskije Sucker Rod Gmbh
    
    AustriaShengli-Highland Company Ltd.
    
    ChinaSigna Engineering Corp.
    
    TexasSmart Stabilizer Systems Limited
    
    U.K.Specialty Testing & Consulting Ltd.
    
    AlbertaStealth Oil & Gas, Inc.
    
    DelawareSubsurface Technology AS
    
    NorwayTalleres de Precision del Chubut S.A.
    
    ArgentinaTank Rentals Limited
    
    U.K.Tech Line Oil Tools Inc.
    
    DelawareTechcorp Industries International, Inc.
    
    BarbadosTeco Maskinering AS
    
    NorwayThe Autonomous Well Company Limited
    
    U.K.TUBAFOR MAROC S.A.R.L.
    
    MoroccoValkyrie Commissioning Services, Inc.
    
    TexasValkyrie de Mexico S. de R.L. de C.V.
    
    MexicoValkyrie Services S. de R.L. de C.V.
    
    MexicoVan der Horst U.S.A., Inc.
    
    DelawareW1 General Partner, Inc.
    
    DelawareW1 Receivables, L.P.
    
    TexasWeatherford (B) Sdn. Bhd.
    
    BruneiWeatherford (Cyprus) Limited
    
    CyprusWeatherford (G.B.) LLP
    
    U.K.Weatherford (Malaysia) Sdn. Bhd.
    
    Malaysia Jt. VentureWeatherford (Novia Scotia) ULC
    
    Novia ScotiaWeatherford (Saudi Arabia) Ltd.
    
    Saudi Arabia Jt. VentureWeatherford Aarbakke AS
    
    NorwayWeatherford Abu Dhabi, Ltd.
    
    Cayman IslandsWeatherford Al-Rushaid Co. Ltd.
    
    Saudi Arabia Jt. VentureWeatherford Angola Wellscreen Applications Ltd.
    
    British Virgin IslandsWeatherford Artificial Lift Systems Canada Ltd.
    
    AlbertaWeatherford Artificial Lift Systems, Inc.
    
    DelawareWeatherford Asia Pacific Pte. Ltd.
    
    SingaporeWeatherford Australia Holding Pty. Limited
    
    AustraliaWeatherford Australia Pty. Ltd.
    
    AustraliaWeatherford Bermuda Holdings Ltd.
    
    BermudaWeatherford Bin Hamoodah  L.L.C.
    
    Abu Dhabi Jt. Venture




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NAME
    
    JURISDICTIONWeatherford Canada Ltd.
    
    AlbertaWeatherford Canada Partnership
    
    AlbertaWeatherford Colombia Ltd.
    
    British Virgin IslandsWeatherford Completion Systems (UK) Limited
    
    U.K.Weatherford Completion Systems de Venezuela, S.A.
    
    VenezuelaWeatherford de Mexico S.A. de C.V.
    
    MexicoWeatherford del Peru S.R.L.
    
    PeruWeatherford DIS Manufacturing (UK) Limited
    
    U.K.Weatherford Drilling and Production Services (India) Private Limited
    
    IndiaWeatherford East Europe Service GmbH
    
    GermanyWeatherford Ecuador S.A.
    
    EcuadorWeatherford Equipment (Cyprus) Limited
    
    CyprusWeatherford Eurasia B.V.
    
    NetherlandsWeatherford Eurasia Limited
    
    U.K.Weatherford Financing (Cyprus) Limited
    
    CyprusWeatherford Financing (Luxembourg) S.a.r.l.
    
    LuxembourgWeatherford France SAS
    
    FranceWeatherford Global Products Limited
    
    CyprusWeatherford Holding (Gibraltar) Limited
    
    GibraltarWeatherford Holding (Ireland) Company
    
    IrelandWeatherford Holding (Luxembourg) S.a.r.l.
    
    LuxembourgWeatherford Holding B.V.
    
    NetherlandsWeatherford Holding GmbH
    
    GermanyWeatherford Holding Middle East Ltd.
    
    British Virgin IslandsWeatherford Holdings (BVI) Ltd.
    
    British Virgin IslandsWeatherford Holdings (Cyprus) Limited
    
    CyprusWeatherford Holdings U.K. Ltd.
    
    U.K.Weatherford Hong Kong Holdings Limited
    
    Hong KongWeatherford Industria e Comercio Ltda.
    
    BrazilWeatherford International de Argentina S.A.
    
    ArgentinaWeatherford International, Inc.
    
    DelawareWeatherford Investment (Gibraltar) Limited
    
    GibraltarWeatherford Investment (Luxembourg) S.a.r.l.
    
    LuxembourgWeatherford Kazakhstan Limited Liability Partnership
    
    KazakhstanWeatherford Kopp GmbH
    
    GermanyWeatherford KSP Company Limited
    
    ThailandWeatherford Latin America, Inc.
    
    PanamaWeatherford Latin America, S.A.
    
    VenezuelaWeatherford Limited Partner, L.L.C.
    
    DelawareWeatherford Liquidity Management Hungary Limited Liability Company
    
    HungaryWeatherford Luxembourg S.a.r.l.
    
    LuxembourgWeatherford Management, Inc.
    
    Delaware




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NAME
    
    JURISDICTIONWeatherford Mediterranea S.p.A.
    
    ItalyWeatherford New Zealand Limited
    
    New ZealandWeatherford Nigeria Limited
    
    NigeriaWeatherford Norge A/S
    
    NorwayWeatherford North Atlantic Limited
    
    GibraltarWeatherford Oil Tool GesmbH
    
    AustriaWeatherford Oil Tool GmbH
    
    GermanyWeatherford Oil Tool Middle East Limited
    
    British Virgin IslandsWeatherford Oil Tool Nederland B.V.
    
    NetherlandsWeatherford Oilfield Equipment (Shanghai) Co., Ltd.
    
    ChinaWeatherford Oilfield Equipment (Tianjin) Limited
    
    ChinaWeatherford Overseas Products, Ltd.
    
    Cayman IslandsWeatherford Overseas Services, Ltd.
    
    Cayman IslandsWeatherford Receivables, LLC
    
    DelawareWeatherford Services, Ltd.
    
    BermudaWeatherford Services, S.A.
    
    PanamaWeatherford Shanghai Investment Co.
    
    DelawareWeatherford Solutions Sdn. Bhd.
    
    MalaysiaWeatherford Technical Services Limited
    
    British Virgin IslandsWeatherford Trinidad Limited
    
    TrinidadWeatherford Tubefuse B.V.
    
    NetherlandsWeatherford U.K. Limited
    
    U.K.Weatherford U.S. Holdings, L.L.C.
    
    DelawareWeatherford U.S. Investment, LLC
    
    DelawareWeatherford U.S., L.P.
    
    LouisianaWeatherford Unidades de Bombeio Ltda.
    
    BrazilWeatherford Well Screen Ireland Limited
    
    IrelandWeatherford/Lamb, Inc.
    
    DelawareWellCat Services International, LLC
    
    TexasWellserv Limited
    
    U.K.WESP
    
    AlgeriaWest Coast International Oilfield Rentals, B.V.
    
    NetherlandsWEUS Holding, Inc.
    
    DelawareWI Products & Equipment, Inc.
    
    Cayman IslandsWII Rental Company
    
    DelawareWUS Holding, L.L.C.
    
    DelawareZimec Ltda.
    
    BrazilZTS-Kabel, a.s.
    
    Slovakia