Name

State or Country of

Incorporation

Ackerman Holdings C.V.

Ackerman Holdings GP LLC

Ackerman International Holland B.V.

Advanced Wirecloth, LLC

AG Holding UK

Aggregate Plant Products Co.

Amercoat Corporation

American Pipe and Construction International

Ameron (UK) Limited

Ameron Brasil Industria E Comercio de Tubos Ltda

Ameron Composites, Inc.

Ameron Egypt

Ameron Holdings II Pte Ltd

Ameron Holdings Pte. Ltd.

Ameron Holdings, Inc.

Ameron International Corporation

Ameron Pole Products LLC

Ameron Saudi Arabian Limited (ASAL)

Ameron Singapore Holding, LLC

Ameron Singapore Poly Holdings Pte. Ltd.

Ameron Trading Holdings Pte. Ltd.

Ameron Water Transmission Group, LLC

Andergauge Limited

Andergauge Redback, LLC

Andergauge USA, Inc.

APL (UK) Limited

APL do Brasil Ltda

APL France SAS

APL Management Pte Ltd

APL Norway AS

APL Technology AS

ASEP Group Holding BV

ASEP Otomotiv Sanayi Ticaret Ltd.

Aswan National Oilwell Varco (a limited liability company)

Big Red Tubulars Industries LLC

Big Red Tubulars Limited

Black Max Argentina S.A.

Bolenco Corporation

Bondstrand Ltd.

Bowen Downhole LLC

Bowen Downhole, Inc.

Brandt Energy Environmental, L.P.

Brandt Interests, Inc.

Brandt Oilfield Services

Brandt Oilfield Services (M) Sdn. Bhd.

C.M.A. Canavera S.R.l.

Camco Drilling Group Limited

Chemineer Limited

Chemineer, Inc.

CJSC Fidmash

CJSC Novmash

Name

State or Country of

Incorporation

Coil Services Middle East LLC

Cooperatie Intelliserv Holding U.A.

Cooperatie NOV NL U.A.

Corporacion Californiana de Tuberias APS S. de R.L. de C.V.

Dalian Moyno Pump Co., Ltd.

Danco AS

Devin International, Inc.

Dreco Canada CV

Dreco Canada GP LLC

Dreco Canada L.P.

Dreco Cayman GP LLC

Dreco Cayman L.P.

Dreco DHT Holding BV

Dreco DHT, Inc.

Dreco Eastern Europe ULC

Dreco Energy Holding BV

Dreco Energy NL Cooperatief U.A.

Dreco Energy Services ULC

Dreco Europe Limited

Dreco International Holdings ULC

Dreco Limited

Dreco LLC

Dupre International Nigeria

E.C. Motors, Inc.

Elmar Far East Pty Ltd

Energy Equipment Corporation Limited

Enerpro de Mexico, S.A. de C.V.

Environmental Procedures LLC

Fiber Glass System (Suzhou) Co. Ltd.

Fiber Glass Systems (Harbin) Co., Ltd.

Fiber Glass Systems Holdings, LLC

Fiber Glass Systems Oman L.L.C.

Fiber Glass Systems, L.P.

Fiber Glass Trading (Shanghai) Co. Ltd.

Fiberspar Australia Pty. Ltd.

Fiberspar Corporation

FIBERSPAR LINEPIPE CANADA LTD.

FidService, LLC

Forth Valley Engineering Limited

Fryma S.a.r.l.

GP USA Holding, LLC

GPEX, L.P.

Grant Prideco (Jiangsu) Drilling Products Co., Ltd

Grant Prideco (Singapore) Pte Ltd

Grant Prideco AB TCA Holding LLC

Grant Prideco Asia (Singapore) Pte Ltd

Grant Prideco de Venezuela, S.A.

Grant Prideco European Holding, LLC

Grant Prideco Finance, LLC

Grant Prideco Holding, LLC

Grant Prideco III C.V.

Name

State or Country of

Incorporation

Grant Prideco Jersey Limited

Grant Prideco Mauritius Limited

Grant Prideco Netherlands B.V.

Grant Prideco PC Composites Holdings, LLC

Grant Prideco USA, LLC

Grant Prideco, Inc.

Grant Prideco, L.P.

Grant Prideco, S. de R.L. de C.V.

Greystone Technologies Pty. Ltd.

Hebei Huayouyiji Tuboscope Coating Co., Ltd.

Hitec AS

Hitec Dreco Limited

Hydralift AmClyde, Inc.

Hydralift AS

Hydralift France SAS

Hydralift Holdings UK Ltd.

Hydra-Rig, Inc.

Inspecciones y Pruebas No Destructivs, S.A. de C.V.

Intellipipe, Inc.

IntelliServ do Brasil Equipamentos e Serviços Para Petroleo Ltda

Intelliserv GP Holdings LLC

Intelliserv International Holding, Ltd

Intelliserv Mexico, S. de R.L. de C.V.

IntelliServ Norway AS

Intelliserv, Inc.

Intelliserv, LLC

Interval LLC

JiangYin Tuboscope Tubular Development Co., Ltd

LSI Asia Pacific Pte. Ltd.

Merpro Americas, Inc.

Merpro Group Limited

Merpro Limited

Merpro Machining & Threading Limited

Merpro Products Limited

Merpro Tortek Limited

Mono Group Pension Trustees Limited

Mono Pumps New Zealand Company

Monoflo NOV S.A.I.C.

Moyno de Mexico, S.A. de C.V.

Moyno, Inc.

Mustang Capital Corp.

National Oilwell (U.K.) Limited

National Oilwell Algerie

National Oilwell de Venezuela, C.A.

National Oilwell DHT, LP

National Oilwell Middle East Company

National Oilwell Poland Sp.z.o.o.

National Oilwell Services de Mexico de C.V.

National Oilwell Varco (Beijing) Investment Management Co. Ltd.

National Oilwell Varco (Thailand) Ltd.

National Oilwell Varco Almansoori Services

Name

State or Country of

Incorporation

National Oilwell Varco Bahrain WLL

National Oilwell Varco Belgium

National Oilwell Varco de Chile—Servicios Limitada

National Oilwell Varco Denmark I/S

National Oilwell Varco do Brasil LTDA

National Oilwell Varco Eurasia, LLC

National Oilwell Varco Guatemala, Limitada

National Oilwell Varco Holdings LLC

National Oilwell Varco Korea Co., Ltd.

National Oilwell Varco Mexico, S.A de C.V.

National Oilwell Varco MSW S.A.

National Oilwell Varco Muscat L.L.C.

National Oilwell Varco Norway AS

National Oilwell Varco Peru S.R.L.

National Oilwell Varco Petroleum Equipment (Shanghai) Co., Ltd.

National Oilwell Varco Pte. Ltd.

National Oilwell Varco Rig Equipment Trading (Shanghai) Co., Ltd.

National Oilwell Varco Solutions S.A. de C.V.

National Oilwell Varco UK Limited

National Oilwell Varco, Inc.

National Oilwell Varco, L.P.

National-Oilwell Pte. Ltd.

National-Oilwell Pty. Ltd.

New Holland Cooperatief U.A.

NOCL Holding BV

NOV (Asia), Inc.

NOV (Barbados) SRL

NOV (Caymans), Ltd.

NOV (Malaysia) Sdn. Bhd.

NOV Ameron de Mexico, S. de R.L. de C.V.

NOV Ameron de SLRC, S. de R.L. de C.V.

NOV APL Limited

NOV ASEP Elmar do Brasil Equipamentos E Servicos Para Petroleu Ltda.

NOV ASEP ELMAR MEXICO, S. DE R.L. DE C.V.

NOV Australia Pty Ltd

NOV Brandt Europe France

NOV Brandt Oilfield Services Middle East LLC

NOV Condor, LLC

NOV CV1 GP LLC

NOV Denmark Cooperatief U.A.

NOV Devin Energia Servicios do Brasil Ltda.

NOV DH de Mexico S. de R.L. de C.V.

NOV DHT Canada Holding ULC

NOV DOWNHOLE ALGERIA SERVICES EURL

NOV Downhole Argentina, LLC

NOV Downhole Azerbaijan, LLC

NOV Downhole Bolivia S.R.L.

NOV Downhole Colombia, LLC

NOV Downhole Comercialização de Equipamento para Petroleo Ltda

NOV Downhole Congo, LLC

NOV Downhole del Ecuador Cia. Ltda.

Name

State or Country of

Incorporation

NOV Downhole Eurasia Limited

NOV Downhole Europe B.V.

NOV Downhole Germany GmbH

NOV Downhole Italia S.R.L.

NOV Downhole Kazakhstan, LLC

NOV Downhole Malaysia Sdn. Bhd.

NOV Downhole Norway, LLC

NOV Downhole Pty Ltd

NOV Downhole Thailand, LLC

NOV Dreco GP LLC

NOV EAST BV

NOV Egypt FZ LLC

NOV Elmar (Middle East) Limited

NOV Elmar NL B.V.

NOV Elmar Pte Ltd

NOV Enerflow ULC

NOV EU Acquisition SNC

NOV Eurasia Holding LLC

NOV European Holding LLC

NOV Expatriate Services, Inc.

NOV Far East B.V.

NOV FGS Maylasia Sdn Bhd

NOV FGS Singapore (Pte.) Ltd

NOV Fiber Glass Systems B.V.

NOV Fiber Glass Systems Fabricacao De Tubos E Conexoes Ltda

NOV Flexibles Equipamentos E Servicos Ltda.

NOV Flexibles Holding ApS

NOV Flexibles UK Ltd.

NOV Floating Production AS

NOV Fluid Control B.V.

NOV GEO Cayman Holdings Limited

NOV GEO GP LLC

NOV GEO LP1 CV

NOV Ghana Limited

NOV GP Holding LLC

NOV GP Holding, L.P.

NOV GP Sub LLC

NOV GP1 Holding LLC

NOV Group Holdings Limited

NOV Holding Danmark ApS

NOV Holding Germany GmbH & Co KG

NOV Holding Germany Management GmbH

NOV Holdings BV

NOV Hydra Rig Pte. Ltd

NOV I LLC

NOV India Private Limited

NOV Intelliserv UK Limited

NOV International Holding BV

NOV International Holdings C.V.

NOV International Holdings GP LLC

NOV Kenya Limited

Name

State or Country of

Incorporation

NOV Kostroma LLC

NOV Mexico Holding LLC

NOV Mission Products UK Limited

NOV Mozambique Limitada

NOV North America I/P, LLC

NOV Norway 1 Holding LLC

NOV Norway 2 Holding LLC

NOV Norway 3 Holding LLC

NOV Norway GP 1 ANS

NOV Norway GP 2 ANS

NOV Norway GP 3 ANS

NOV Oil & Gas Services Angola, Ltd.

NOV Oil and Gas Services Namibia (Proprietary) Limited

NOV Oil and Gas Services Nigeria Limited

NOV Oil and Gas Services South Africa (Pty) Limited

NOV Oilfield Services Tanzania Limited

NOV Oilfield Services Vostok LLC

NOV Oilfield Solutions

NOV Oslo Holding LLC

NOV Park I BV

NOV Park II BV

NOV Pressure Performance Systems Comercialização de Equipamentos e Prestação de Serviços Técnicos Ltda.

NOV Process & Flow Technologies UK Limited

NOV Process & Flow Technologies US, Inc.

NOV Rig Solutions Pte. Ltd.

NOV Rigstore, Inc.

NOV Romania, LLC

NOV Saudi Arabia Co., Ltd.

NOV Saudi Arabia Trading Co. Ltd.

NOV Services Ltd.

NOV Servicios de Personal Mexico, S. de R.L. de C.V.

NOV Tuboscope Italia S.R.l.

NOV Tuboscope Middle East LLC

NOV Tuboscope NL B.V.

NOV Tubulars and Connectors Ltd.

NOV TV2 LLC

NOV TVI LLC

NOV UK (Angola Acquisitions) Limited

NOV UK Finance Limited

NOV UK Holdings Limited

NOV UK Korea LP

NOV West BV

NOV Worldwide CV

NOV-BLM SAS

NOV-Fabtech FZCO

NOVM Holding LLC

NOVN Portugal—Servicos de Engenharia, LDA

NOW Downhole Tools, Inc.

NOW International LLC

NOW Nova Scotia Holdings LLC

NOW Oilfield Services II, LLC

Name

State or Country of

Incorporation

NOW Oilfield Services, LLC

NQL (Illinois) Inc.

NQL (US) Inc.

NQL Energy Services US, Inc.

NQL Holland B.V.

P&T Servicios Petroleros, C.A.

Pesaka Inspection Services SDN.BHD.

Pipex Composite Limited

Pipex Drainage & Civil Products Limited

Pipex Limited

Pipex Project Services Limited

Pipex PX (Scotland) Limited

Pipex PX Limited

Pipex Structural Composites Limited

Pridecomex Holding, S. de R.L. de C.V.

Pridecomex TA Industries, LLC

Procon Engineering Ltd.

Profab Engineering Pte. Ltd.

Profab Services Pte Ltd

PSX Corporation

PT H-Tech Oilfield Equipment

PT National Oilwell Varco

PT PROFAB INDONESIA

Quality Tubing FSC

R&M C.V.

R&M Canada Cooperatief U.A.

R&M Canada Holding B.V.

R&M Energy Systems Australia Pty Ltd.

R&M Energy Systems de Argentina S.A.

R&M Energy Systems de Venezuela, C.A.

R&M Environmental Strategies, Inc.

R&M Singapore Holding LLC

R&M UK Holding LLC

ReedHycalog Angola, LLC

ReedHycalog Cameroon, LLC

ReedHycalog CIS, LLC

ReedHycalog Coring Services International, Inc.

ReedHycalog International Holding, LLC

Reed-Hycalog Singapore

ReedHycalog UK Ltd.

ReedHycalog, L.P.

ReedHycalog, LLC

RHI Holding LLC

RIO CO, S. de R.L. de C.V.

Robannic Overseas Finance A.V.V.

Robbins & Myers (Suzhou) Process Equipment Company Limited

Robbins & Myers B.V.

Robbins & Myers Foundation

Robbins & Myers GP LLC

Robbins & Myers Holdings UK Limited

Robbins & Myers Holdings, LLC

Name

State or Country of

Incorporation

Robbins & Myers Italia S.R.L.

Robbins & Myers N.V.

Robbins & Myers Private Limited

Robbins & Myers, Inc.

Rodic S.A. de C.V.

Romaco S.a.r.l.

Saudi Arabia Concrete Products Limited (SACOP)

Screen Manufacturing Company Unlimted

Seabox AS

Servicios Tubulares TT, S.A. de C.V.

Soil Recovery A/S

Star Fiberglass Harbin Co., Ltd.

STAR Sudamtex Tubulares S.A. (Joint Venture)

STB H2O TUNISIE

Subseaflex Holding ApS

T-3 Energy Preferred Industries Mexico, S. de R.L. de C.V.

T-3 Energy Services Cayman Holdings, Ltd.

T-3 Energy Services Cayman, Ltd.

T-3 Energy Services India Private Limited

T-3 Energy Services International, Inc.

T-3 Energy Services Mexico, S. de R.L. de C.V.

T-3 Energy Services, LLC

T-3 Investment Corporation IV

T-3 Mexican Holdings, Inc.

Techdrill Limited

Telluride Insurance Limited

Tianjin Grant Prideco TPCO Oilfield Products Co., Ltd.

Tianjin Grant TPCO Drilling Tools Company Limited

Tube-Kote, Inc.

Tubo-FGS, L.L.C.

Tuboscope & Co. LLC

Tuboscope (Holding U.S.) LLC

Tuboscope Brandt de Venezuela S.A.

Tuboscope Norge AS

Tuboscope Pipeline Services Inc.

Tuboscope Services, L.L.C.

Tuboscope Servicios de Bolivia S.R.L.

Tuboscope Vetco (Deutschland) GmbH

Tuboscope Vetco (France) SAS

Tuboscope Vetco (Osterreich) GmbH

Tuboscope Vetco Canada ULC

Tuboscope Vetco Capital Limited

Tuboscope Vetco de Argentina S.A.

Tuboscope Vetco Moscow CJSC

Tucom Composites Polyester Sanayi Ticaret Ltd.

TVI Holdings, L.L.C.

Varco BJ BV

Varco Canada ULC

Varco CIS, LLC

Varco do Brasil Ltda.

Varco Holdings Canada ULC

Name

State or Country of

Incorporation

Varco I/P, Inc.

Varco Internacional do Brasil Equipamentos Ltda.

Varco International de Venezuela, C.A.

Varco UK Acquisitions Limited

Varco US Finance, Inc.

Varco US Holdings LLC

Varco, L.P.

Vetco Coating GmbH

Vetco Enterprise GmbH

Vetco Pipeline Services, Inc.

Vetco Saudi Arabia Ltd.

Vetco Services Sendirian Berhad

Visible Assets, Inc.

voestalpine Middle East Free Zone Establishment

voestalpine Tubulars Corporation

voestalpine Tubulars Gmbh

voestalpine Tubulars GmbH & Co KG

Woolley, Inc.

WTG Holding US, Inc.

XL Systems Antilles, N.V.

XL Systems Europe B.V.

XL Systems International, Inc.

XL Systems, L.P.