**Exhibit 21**

 

**Subsidiaries**

 

**Varco International Inc. (US—DE)**

**Varco U.S. Holdings Inc. (US—DE)**

**Varco US Finance Inc. (US—DE)**

**Varco do Brasil Ltda. (Brazil)**

**Varco Al-Mansoori LLC ( UAE—49%)**

**Varco International Inc. Pte. Ltd. (Singapore)**

**Varco BJ B.V. (Netherlands)**

**Varco Drilling Equipment do Brasil Ltda. (Brazil—99.9%)**

**Varco(Sara) India Pvt. Ltd. (India—60%)**

**Rig Technology Limited (UK)**

**Varco (UK) Ltd. (UK)**

**Varco BJ FSC Inc. (Barbados)**

**Varco de Venezuela C.A. (Venezuela)**

**Herramientas Varco SA de CV (Mexico—49%)**

**SmarTract, Inc. (US-TX—9.57%)**

**Brandt Interests Inc.(80%—US—DE)**

**Brandt Energy Environmental LP (1% US—TX)**

**TVI Holdings LLC (US—DE)**

**Tubo-FGS LLC (US—DE) Gen. Prtnr. (1%)**

**Fiber Glass Systems LP (US—TX)**

**Varco LP (US—DE)**

**LL TT Ltd (Trinidad)**

**Servizi Ispettivi Srl(Italy)**

**Star Sudamtex SA (50%—Venezuela)**

**Fiber Glass Systems Holding, LLC (US—DE) Ltd. Prtnr. (99%)**

**Fiber Glass Systems LP (US—TX)**

 

**Varco LP (DE)**

**Brandt Co de Argentina (Argentina—.1% inactive)**

**Varco I/P Inc. (US—DE)**

**Tuboscope Vetco do Brasil Equipamentos e Servicos Ltda(Brazil)**

**Tuboscope Vetco (Thailand) Ltd. (Thailand)**

**Tuboscope Vetco Moscow (Russia)**

**VCR (Panama) Inc. (fka Tuboscope Vetco Services (Panama) Inc.)**

**Tuboscope Vetco Services (Panama) Inc. —Abu Dhabi branch**

**Tuboscope Vetco Services (Panama) Inc. —Kuwait branch**

**Tuboscope Vetco Services (Panama) Inc. —Singapore branch**

**Tuboscope Vetco (Nigeria) Ltd. (40%—Nigeria)**

**Vetco Enterprises AG (Switzerland)**

**Tuboscope Vetco Osterreich GmbH (Austria)**

**Vetco Saudi Arabia Ltd. (P/S—45%)**

**Tuboscope Vetco (Deutschland) GmbH (Germany)**

**Tuboscope Vetco (Deutschland) GmbH (Germany) —Bahrain branch**

**Tuboscope Vetco (Deutschland) GmbH (Germany) —France branch**

**Tuboscope Vetco (Deutschland) GmbH (Germany) —Oman branch**

**Tuboscope Vetco (Deutschland) GmbH (Germany) —Netherlands branch**

**Tuboscope Vetco (Deutschland) GmbH (Germany) —Egypt branch**

**Tuboscope Vetco Technology GmbH (Germany)**

 

**Tuboscope Vetco Technology GmbH (Equatorial New Guinea branch)**

**Tuboscope VetcoTechnology GmbH (Germany)—Russia Representative Office**

**Tuboscope Vetco (Brunei) SDN BDH(49%)**

**Vetco Abu Dhabi (P/S—United Arab Emirates—45%)**

**Vetco Coating GmbH (Germany)**

 

**Tuboscope Vetco de Argentina, S.A. (Argentina)**

 

**Tuboscope Vetco Canada Inc. (Canada)**

**Varco Shearer Inc. (fka Varco Coating Ltd.)(Canada)**

**V/I Canada Inc. (fka ICO Canada Inc.)(Canada)**

**Tuboscope Pipeline Services Canada Inc. (Canada)**

**Tuboscope (Far East) Pte Ltd. (Singapore)**

**Pesaka Inspection Services SDN.BDH (49%—Malaysia)**

**Tuboscope Far East Pte Ltd.—Australia branch**

 

**Tuboscope Norge AS (Norway)**

**Varco Norge A/S (Norway)**

**CTES (P/S US— TX—25%)**

**Tulsa Equipment Manufacturing Co (US—OK)**

**Tuboscope Services de Bolivia S.A. (Bolivia)**

**Brandt Servicios de Petroleros S.A. (Peru)**

**Varco Canada Limited (Canada)**

**Chimo Equipment Ltd. (Canada)**

**Alberta Instruments Ltd. (Canada)**

**Tuboscope Pipeline Services Inc. ( 77%—US—TX)**

**Vetco Pipeline Services Inc. (US—TX)**

**Vetco Pipeline Services Ltd. (Canada)**

**Tuboscope Vetco Mexico S.A. de C.V. (Mexico)**

 

**Brandt Norge (Norway Branch)**

**MSD de Venezuela C.A. (Venezuela)**

**Tuboscope Vetco (France) S.A. (France)**

**Texas Oil Tools Inc. (US—NV)**

**Tuboscope MECL (Trinidad) Ltd. (50% P/S)**

**Varco L.P.-Ecuador Branch (Ecuador Br.)**

**Coil Services (North Sea) Limited (fka Quality Tubing (UK)) (UK)**

**Quality Tubing FSC (Virgin Islands)**

**Quality Tubing SA (Venezuela)**

**Tube-Kote Inc. (US—TX)**

**Tuboscope (Holding US) Inc (US—DE)**

**Harbin WFOE LLC (China)**

**Tuboscope Holdings Ltd. (UK)**

**Chargewood Ltd (UK)**

**Mudcat (UK)**

**Enaco (UK)**

**Mudcat (UK)**

**Varco Ltd. (UK)**

**Tuboscope Vetco (UK) Ltd. (UK)**

**EPI UK Ltd.(UK)**

 

**Tuboscope VetcoCapital Ltd. (UK)**

**TVCC—Kazakhstan Branch**

**SSR Ltd. (UK)**

**The Brandt Company (UK) Ltd.**

 

**Pump Systems Ltd. (UK)**

**Pressure Control Engineering Ltd. (UK)**

**Tuboscope Pipeline Services Ltd. (UK)**

**Tuboscope Pipeline Services Inc. (23%—US—TX)**

**NDT Systems & Services AG (Germany—23.75%)**

**Linalog Ltd. (UK)**

**Hydra RigUK Limited (fka Weston) (UK)**

**Varco UK Acquisitions Ltd.(UK)**

**Elmar Services Ltd (UK)**

**Elmar Engineering Ltd. (UK)**

**Elmar Screens Ltd. (UK)**

**Elmar Rentals Ltd. (UK)**

**Elmar Casings Ltd. (UK)**

**Elmar Services (Middle East) Ltd. (UAE)**

**Elmar Far East Pty. Ltd. (fka Elmar Services Pty. Ltd.) (Australia)**

**Morinoak International Ltd. (UK)**

**Morinoak Engineering Ltd. (UK)**

**EPI (US—DE)**

**Advanced Wirecloth Inc.(US—LA)**

**Tuboscope SA de CV (Mexico)**

**Tuboscope Brandt de Colombia Branch (fka EPI Colombia Branch) Merged with TV Col.**

**Drexel Oilfield Services WLL (49% Dubai, UAE)**

**Tuboscope Brandt de Venezuela SA (Venezuela)**

**Brandt Company deArgentina SA (Argentina)**

**Screen Mfg. Company Ltd. (Trinidad)**

**Venwell International Inc. Trinidad branch**

 

**Varco Drilling Equipment do Brasil Ltda. (Brazil—.1%)**

**Hydra Rig, Inc. (US—DE)**

**Elmar Far East Ltd. (fka Eastern Oil Tools) (Singapore)**

**Eastern Oil Tools Pte. Ltd.(Australia)**

**Servizi Ispetivi SRL (Italy—5%)**

**Brandt Oilfield Services (M) Sdn Bhd (29% Malaysia)**