| | |
Name | | State or Country of Incorporation |
| A.S.E.P. (UK) Limited | | United Kingdom |
| Ackerman International Holland B.V. | | Netherlands |
| Advanced Production & Loading Pte Ltd | | Singapore |
| Advanced Wirecloth, LLC | | Delaware |
| Advanced Wirecloth, S. de R.L. de C.V. | | Delaware |
| Aggregate Plant Products Co. | | Texas |
| Amercoat Corporation | | California |
| Ameron (UK) Limited | | United Kingdom |
| Ameron Brasil Industria E Comercio de Tubos Ltda | | Brazil |
| Ameron Composites, Inc. | | Delaware |
| Ameron Fiberglass-Composite Pipe B.V. | | Netherlands |
| Ameron Holdings II Pte Ltd | | Singapore |
| Ameron Holdings Pte. Ltd. | | Singapore |
| Ameron Holdings, Inc. | | California |
| Ameron International Corporation | | Delaware |
| Ameron Manufacturing Holdings Pte Ltd | | Singapore |
| Ameron Singapore Poly Holdings Pte. Ltd. | | Singapore |
| Ameron Trading (Shanghai) Co. Ltd. | | China |
| Ameron Trading Holdings Pte. Ltd. | | Singapore |
| Andergauge Redback, LLC | | Texas |
| Andergauge USA, Inc. | | Texas |
| APCI | | California |
| APL (UK) Limited | | United Kingdom |
| APL do Brasil Ltda | | Brazil |
| APL Management Pte Ltd | | Singapore |
| APL Norway AS | | Norway |
| APL Technology AS | | Norway |
| ASEP Far East Pte Ltd. | | Singapore |
| ASEP Group Holding BV | | Netherlands |
| ASEP Holding BV | | Netherlands |
| ASEP Middle East FZE | | United Arab Emirates |
| ASEP Otomotiv Sanayi Ticaret Ltd. | | Turkey |
| ASEP Singapore Pte. Ltd. | | Singapore |
| ASPECIAL EQUIPAMENT PRODUCTIONS MEXICO SRL | | Mexico |
| Barracuda Ventures Pte Ltd | | Singapore |
| Big Red Tubulars Limited | | British Virgin Islands |
| Black Max Argentina S.A. | | Argentina |
| Blue Star Coating Pte. Ltd. | | Singapore |
| Bolenco Corporation | | California |
| Bondstrand Corporation | | California |
| Bondstrand Gulf FZ | | U.A.E. |
| Bowen Downhole LLC | | Delaware |
| Bowen Downhole, Inc. | | Delaware |
| Brandt Energy Environmental, L.P. | | Texas |
| Brandt Interests, Inc. | | Delaware |
| Brandt Oilfield Services (M) Sdn. Bhd. | | Malaysia |
| BW Offshore France SAS | | France |
| C.M.A. Canavera S.r.l. | | Italy |
| Centron International Inc. | | Delaware |
| | |
Name | | State or Country of Incorporation |
| CJSC Novmash | | Belarus |
| Coil Services ME LLC | | United Arab Emirates |
| Conemsco Limited | | United Kingdom |
| Conner Steel Products Holdings Co. | | Delaware |
| Conner Steel Products, Inc. | | Delaware |
| Contubos S.A. | | Colombia |
| Cooperatie Intelliserv Holding U.A. | | Netherlands |
| Cooperatie NOV NL U.A. | | Netherlands |
| Corlac Equipment Corp | | Barbados |
| Corporacion Californiana de Tuberias APS S. de R.L. de C.V. | | Mexico |
| DANCO AS | | Norway |
| Diamond Products International Venezolana, C.A. | | Venezuela |
| Dreco Canada CV | | Alberta |
| Dreco Canada GP LLC | | Delaware |
| Dreco Canada L.P. | | Alberta |
| Dreco Cayman L.P. | | Cayman Islands |
| Dreco DHT Holding BV | | Netherlands |
| Dreco DHT, Inc. | | Delaware |
| Dreco Eastern Europe ULC | | Alberta |
| Dreco Energy Holding BV | | Netherlands |
| Dreco Energy NL Cooperatief U.A. | | Netherlands |
| Dreco Energy Services ULC | | Alberta |
| Dreco Europe Limited | | United Kingdom |
| Dreco Holding ULC | | Alberta |
| Dreco International Holdings ULC | | Alberta |
| Dreco Limited | | United Kingdom |
| Dreco LLC | | Delaware |
| Dura Products, Inc. | | Alberta |
| Elmar Far East Pty Ltd | | Australia |
| Elmar Services Pty Ltd | | Australia |
| Enerflow Industries, Inc. | | Delaware |
| Enerpro de Mexico, S.A. de C.V. | | Mexico |
| Environmental Procedures LLC | | Delaware |
| Euro Offshore Pte. Ltd. | | Singapore |
| Fiber Glass System (Suzhou) Co. Ltd. | | China |
| Fiber Glass Systems (Harbin) Co., Ltd. | | China |
| Fiber Glass Systems Holdings, LLC | | Delaware |
| FIBER GLASS SYSTEMS OMAN L.L.C. | | Oman |
| Fiber Glass Systems, L.P. | | Texas |
| Fiberspar Australia Pty. Ltd. | | Australia |
| FIBERSPAR CORPORATION | | Delaware |
| FIBERSPAR LINEPIPE CANADA LTD. | | Canada |
| Forth Valley Engineering Limited | | United Kingdom |
| GP USA Holding, LLC | | Delaware |
| GPEX, L.P. | | Texas |
| Grant Prideco (Jiangsu) Drilling Products Co., Ltd | | China |
| Grant Prideco (Singapore) Pte Ltd | | Singapore |
| Grant Prideco AB TCA Holding LLC | | Delaware |
| Grant Prideco Asia (Singapore) Pte Ltd | | Singapore |
| Grant Prideco de Venezulea, S.A. | | Venezuela |
| Grant Prideco European Holding, LLC | | Delaware |
| | |
Name | | State or Country of Incorporation |
| Grant Prideco Finance, LLC | | Delaware |
| Grant Prideco Holding, LLC | | Delaware |
| Grant Prideco III C. V. | | Netherlands |
| Grant Prideco Jersey Limited | | Jersey Island and Delaware |
| Grant Prideco Mauritius Limited | | Mauritius |
| Grant Prideco Netherlands B.V. | | Netherlands |
| Grant Prideco PC Composites Holdings, LLC | | Delaware |
| Grant Prideco USA, LLC | | Delaware |
| Grant Prideco, Inc. | | Delaware |
| Grant Prideco, L.P. | | Delaware |
| Grant Prideco, S de R.L. de C.V. | | Mexico |
| GROUP KZ LLP | | Kazakhstan |
| Hebei Huayouyiji Tuboscope Coating Co., Ltd. | | China |
| HITEC AS | | Norway |
| Hydralift Amclyde, Inc. | | Delaware |
| Hydralift AS | | Norway |
| Hydralift France SAS | | France |
| Hydra-Rig, Inc. | | Delaware |
| Inmobiliaria Industrial de Veracruz, S. de R.L. de C.V. | | Mexico |
| Inspecciones y Pruebas No Destructivs, S.A. de C.V. | | Mexico |
| Intellipipe, Inc. | | Delaware |
| IntelliServ do Brasil Equipamentos e Serviços Para Petroleo Ltda | | Brazil |
| Intelliserv GP Holdings LLC | | Delaware |
| Intelliserv International Holding, Ltd | | Cayman Islands |
| Intelliserv Mexico, S. de R.L. de C.V. | | Mexico |
| IntelliServ Norway AS | | Norway |
| Intelliserv, Inc. | | Delaware |
| Intelliserv, LLC | | Delaware |
| Interval LLC | | Russia |
| Island Ready-Mix Corporation, Inc. | | Hawaii |
| Istok Business Services LLC | | Russian Federation |
| Jiangyin Tuboscope Tubular Development Co., Ltd | | China |
| JV FIDMASH | | Belarus |
| Lanzhou LS-National Oilwell Petroleum Engineering Co. Ltd. | | China |
| LLTT, Ltd. | | Trinidad and Tobago |
| LSI Asia Pacific Pte. Ltd. | | Singapore |
| Merpro Americas, Inc. | | Texas |
| Merpro Limited | | Scotland |
| Mono Group Pension Trustees Limited | | United Kingdom |
| Mono Pumps (Australia) Proprietary Limited | | Australia |
| Mono Pumps New Zealand Company | | New Zealand |
| Monoflo NOV S.A.I.C. | | Argentina |
| Mustang Capital Corp. | | Wyoming |
| National Oilwell Algerie | | Algeria |
| National Oilwell de Mexico S.A. de C.V. | | Mexico |
| National Oilwell de Venezuela, C.A. | | Venezuela |
| National Oilwell DHT, LP | | Delaware |
| National Oilwell Middle East | | Nova Scotia |
| National Oilwell Netherlands BV | | Netherlands |
| National Oilwell Nova Scotia Company | | Nova Scotia |
| National Oilwell Poland S.p.z.o.o. | | Poland |
| | |
Name | | State or Country of Incorporation |
| National Oilwell Services de Mexico, S.A. de C.V. | | Mexico |
| National Oilwell Sogne AS | | Norway |
| National Oilwell Varco (Beijing) Investment Management Co. Ltd. | | China |
| National Oilwell Varco (Thailand) Ltd. | | Thailand |
| National Oilwell Varco Bahrain WLL | | Bahrain |
| National Oilwell Varco de Argentina S.A. | | Argentina |
| National Oilwell Varco de Chile SRL | | Chile |
| National Oilwell Varco de Colombia | | Colombia |
| National Oilwell Varco Denmark I/S | | Denmark |
| National Oilwell Varco do Brasil LTDA | | Brazil |
| National Oilwell Varco Eurasia | | Russian Federation |
| National Oilwell Varco Fluid Control Norway AS | | Norway |
| National Oilwell Varco Hjelset AS | | Norway |
| National Oilwell Varco Holdings LLC | | Delaware |
| National Oilwell Varco Korea Co., Ltd. | | Korea, Republic of |
| National Oilwell Varco MSW S.A. | | Argentina |
| National Oilwell Varco Muscat L.L.C. | | Oman |
| National Oilwell Varco Norway AS | | Norway |
| National Oilwell Varco Peru SRL | | Peru |
| National Oilwell Varco Petroleum Equipment (Shanghai) Co., Ltd. | | China |
| National Oilwell Varco Pte Ltd. | | Singapore |
| National Oilwell Varco Rig Equipment Trading (Shanghai) Co., Ltd. | | China |
| National Oilwell Varco Solutions S.A. de C.V. | | Mexico |
| National Oilwell Varco UK Limited | | United Kingdom |
| National Oilwell Varco, Inc. | | Delaware |
| National Oilwell Varco, L.P. | | Delaware |
| National Oilwell-Netherlands B.V. | | Netherlands |
| National-Oilwell Pte. Ltd. | | Singapore |
| National-Oilwell Pty. Ltd. | | Australia |
| Natoil LLC | | Delaware |
| New Holland Cooperatief U.A. | | Netherlands |
| NOCL Holding BV | | Netherlands |
| NOV (Caymans), Ltd. | | Cayman Islands |
| NOV (Malaysia) Sdn. Bhd. | | Malaysia |
| NOV APL Limited | | Cyprus |
| NOV ASEP Elmar (Middle East) Limited | | United Kingdom |
| NOV ASEP Elmar do Brasil Equipamentos E Servicos Para Petroleu Ltda. | | Brazil |
| NOV ASEP ELMAR MEXICO, S. DE R.L. DE C.V. | | Mexico |
| NOV ASEP Elmar NL B.V. | | Netherlands |
| NOV ASEP Elmar Pte Ltd | | Singapore |
| NOV Brandt Europe France | | France |
| NOV Brandt Oilfield Services Middle East LLC | | United Arab Emirates |
| NOV Denmark Cooperatief U.A. | | Netherlands |
| NOV DH de Mexico S.A. de C.V. | | Mexico |
| NOV DHT Canada Holding ULC | | Alberta |
| NOV Distribution Eurasia LLC | | Russian Federation |
| NOV Downhole Thailand, LLC | | Delaware |
| NOV DOWNHOLE ALGERIA SERVICES EURL | | Algeria |
| NOV Downhole Argentina, LLC | | Delaware |
| NOV Downhole Azerbaijan, LLC | | Delaware |
| NOV Downhole Bolivia S.R.L. | | Bolivia |
| | |
Name | | State or Country of Incorporation |
| NOV Downhole Colombia, LLC | | Delaware |
| NOV Downhole Comercialização de Equipamento para Petroleo Ltda | | Brazil |
| NOV Downhole Congo, LLC | | Delaware |
| NOV Downhole Del Ecuador Cia. Ltda. | | Ecuador |
| NOV Downhole Eurasia Limited | | United Kingdom |
| NOV Downhole Europe B.V. | | Netherlands |
| NOV Downhole Germany GmbH | | Germany |
| NOV Downhole Italia S.R.L. | | Italy |
| NOV Downhole Kazakhstan, LLC | | Delaware |
| NOV Downhole Norway, LLC | | Delaware |
| NOV Downhole Pty Ltd | | Australia |
| NOV Downhole Romania, LLC | | Delaware |
| NOV EAST BV | | Netherlands |
| NOV Enerflow ULC | | Canada |
| NOV EU Acquisition SNC | | France |
| NOV European Holding LLC | | Delaware |
| NOV Expatriate Services, Inc. | | Delaware |
| NOV Far East B.V. | | Netherlands |
| NOV FGS Maylasia Sdn Bhd | | Malaysia |
| NOV FGS SINGAPORE (PTE.) LTD | | Singapore |
| NOV FGS Singapore (Pte.) Ltd. | | Singapore |
| NOV Fiber Glass Systems B.V. | | Netherlands |
| NOV Fiber Glass Systems Fabricacao De Tubos E Conexoes Ltda | | Brazil |
| NOV Flexibles Equipamentos E Servicos Ltda. | | Brazil |
| NOV Flexibles Holding ApS | | Denmark |
| NOV GEO Cayman Holdings Limited | | Cayman Islands |
| NOV GEO GP LLC | | Delaware |
| NOV GEO LP1 CV | | Netherlands |
| NOV Ghana Limited | | Ghana |
| NOV GP HOLDING LLC | | Delaware |
| NOV GP SUB LLC | | Delaware |
| NOV Group Holdings Limited | | Scotland |
| NOV HOLDING DANMARK ApS | | Denmark |
| NOV Holding Germany GmbH & Co KG | | Germany |
| NOV Holding Germany Management GmbH | | Germany |
| NOV Holdings BV | | Netherlands |
| NOV India Private Limited | | India |
| NOV Intelliserv UK Limited | | United Kingdom |
| NOV International Holding BV | | Netherlands |
| NOV Korea Holding Co., Ltd. | | Korea, Republic of |
| NOV Kostroma LLC | | Russia |
| NOV Mexico Holding LLC | | Delaware |
| NOV Mission comercialização de equipamentos para Petróleo Ltda. | | Brazil |
| NOV Mission Products UK Limited | | United Kingdom |
| NOV Oil and Gas Services Nigeria Limited | | Nigeria |
| NOV Oilfield Services Vostok LLC | | Russian Federation |
| NOV Park I BV | | Netherlands |
| NOV Park II BV | | Netherlands |
| NOV Rig Solutions Pte. Ltd. | | Singapore |
| NOV Rigstore, Inc. | | Delaware |
| NOV Services Ltd. | | Cayman Islands |
| | |
Name | | State or Country of Incorporation |
| NOV Servicios De Personal Mexico, S. De R.L. De C.V. | | Mexico |
| NOV Tuboscope Italia S.r.l. | | Italy |
| NOV Tuboscope Middle East LLC | | United Arab Emirates |
| NOV TVI LLC | | Delaware |
| NOV UK AICA LT | | Scotland |
| NOV UK AICB LTD | | Scotland |
| NOV UK Finance Limited | | United Kingdom |
| NOV UK HOLDINGS LIMITED | | United Kingdom |
| NOV UK Korea LP | | United Kingdom |
| NOV West BV | | Netherlands |
| NOV Wilson Canada ULC | | Alberta |
| NOV Wilson, L.P. | | Delaware |
| NOV Worldwide CV | | Netherlands |
| NOV-BLM SAS | | France |
| NOV-Fabtech FZCO | | United Arab Emirates |
| NOW (Asia), Inc. | | Mauritius |
| NOW (Barbados) SRL | | Barbados |
| NOW Canada, L.P. | | Alberta |
| NOW Downhole Tools, Inc. | | Delaware |
| NOW International LLC | | Delaware |
| NOW Nova Scotia Holdings LLC | | Delaware |
| NOW Oilfield Services, Inc. | | Delaware |
| NQL (Illinois) Inc. | | Illinois |
| NQL (US) Inc. | | Delaware |
| NQL Energy Services US, Inc. | | Texas |
| NQL Holland B.V. | | Netherlands |
| P&T Servicios Petroleros, C.A. | | Venezuela |
| PESA Holding Pte Ltd. | | Singapore |
| Pesaka Inspection Services SDN.BHD. | | Malaysia |
| Petrex, Inc. | | Louisiana |
| Prescott Drilling Motors, Inc. | | Louisiana |
| Pridecomex Holding, S. de R.L. de C.V. | | Mexico |
| Pridecomex TA Industries, S. de R.L. de C.V. | | Mexico |
| Procon Engineering Ltd. | | United Kingdom |
| PSX Corporation | | California |
| PT H-Tech Oilfield Equipment | | Indonesia |
| PT National Oilwell Varco | | Indonesia |
| ReedHycalog Angola, LLC | | Delaware |
| ReedHycalog Cameroon, LLC | | Delaware |
| ReedHycalog CIS, LLC | | Delaware |
| ReedHycalog Coring Services International, Inc. | | Delaware |
| Reed-Hycalog de Mexico, S de R.L. de C.V. | | Mexico |
| ReedHycalog India Private Limited | | India |
| ReedHycalog International Holding, LLC | | Delaware |
| Reed-Hycalog Services de Mexico S. de R.L. de C.V. | | Mexico |
| Reed-Hycalog Singapore Partnership | | Singapore |
| Reed-Hycalog UK Holdings, LLP | | United Kingdom |
| ReedHycalog, L.P. | | Delaware |
| ReedHycalog, LLC | | Delaware |
| RIO CO, S. de R.L. de C.V. | | Mexico |
| SARL Wilson Hassi Messaoud | | Algeria |
| | |
Name | | State or Country of Incorporation |
| Screen Manufacturing Co. Ltd. | | Trinidad and Tobago |
| Servicios Tubulares TT, S.A. de C.V. | | Mexico |
| Shaffer India Private Limited | | India |
| Smart Screen Systems, Inc. | | Minnesota |
| Soil Recovery A/S | | Denmark |
| Star Fiberglass Harbin Co., Ltd. | | China |
| STAR Sudamtex Tubulares S.A. (Joint Venture) | | Venezuela |
| STB H2O TUNISIE | | Tunisia |
| STSA (India) Private Limited | | India |
| Subseaflex Holding ApS | | Denmark |
| Supply Development (Malta) Ltd | | Malta |
| Supply Development Ltd. | | British Virgin Islands |
| Telluride Insurance Limited | | Bermuda |
| Tianjin Grant Prideco TPCO Drilling Tools Company Limited | | China |
| Tianjin Grant Prideco TPCO Oilfield Products Co., Ltd. | | China |
| TS&M Supply | | Alberta |
| TS&M Supply—Ontario | | Ontario |
| Tube-Kote, Inc. | | Texas |
| Tubo-FGS, L.L.C. | | Delaware |
| Tubos California Corporation | | California |
| TUBOS Y ACTIVOS, S. de R.L. | | Mexico |
| Tubos Y Activos, S. De R.L. De C.V. | | Mexico |
| Tuboscope & Co. LLC | | Oman |
| Tuboscope (Holding U.S.) LLC | | Delaware |
| Tuboscope Brandt de Venezuela S.A. | | Venezuela |
| Tuboscope Holdings Limited | | United Kingdom |
| Tuboscope Norge AS | | Norway |
| Tuboscope Pipeline Services Inc. | | Texas |
| Tuboscope Pipeline Services Limited | | United Kingdom |
| Tuboscope Services, L.L.C. | | Delaware |
| Tuboscope Servicios de Bolivia S.R.L. | | Bolivia |
| Tuboscope Vetco (Deutschland) GmbH | | Germany |
| Tuboscope Vetco (France) SAS | | France |
| Tuboscope Vetco (Osterreich) GmbH | | Austria |
| Tuboscope Vetco Canada ULC | | Alberta |
| Tuboscope Vetco Capital Limited | | United Kingdom |
| Tuboscope Vetco de Argentina S.A. | | Argentina |
| Tuboscope Vetco Mexico, S.A. de C.V. | | Mexico |
| Tuboscope Vetco Moscow CJSC | | Russian Federation |
| Tuboscope Vetco Nigeria Limited | | Nigeria |
| Tucom Composites Polyester Sanayi Ticaret Ltd. | | Turkey |
| TVI Holdings, L.L.C. | | Delaware |
| V.O.F. National Oilwell Varco | | Netherlands |
| Varco Al Mansoori Services Company LLC | | United Arab Emirates |
| Varco BJ BV | | Netherlands |
| Varco BJ FSC Inc | | Barbados |
| Varco Canada ULC | | Alberta |
| Varco CIS | | Russian Federation |
| Varco do Brasil Ltda. | | Brazil |
| Varco Drilling Equipment do Brasil Ltda. | | Brazil |
| Varco Holdings Canada ULC | | Alberta |
| | |
Name | | State or Country of Incorporation |
| Varco I/P, Inc. | | Delaware |
| Varco International de Venezuela, C.A. | | Venezuela |
| Varco International do Brasil Equipamentos e Servicos Ltda. | | Brazil |
| Varco Norge AS | | Norway |
| Varco Sara (India) Private Limited | | India |
| Varco UK Acquisitions Limited | | United Kingdom |
| Varco US Finance, Inc. | | Delaware |
| Varco US Holdings LLC | | Delaware |
| Varco, L.P. | | Delaware |
| Vector Oil Tool ULC | | Alberta |
| Vetco Coating GmbH | | Germany |
| Vetco Enterprise GmbH | | Switzerland |
| Vetco Saudi Arabia Ltd. | | Saudi Arabia |
| Vetco Services Sendirian Berhad | | Brunei Darussalam |
| Vetco Technology GmbH | | Germany |
| Voest Alpine Middle East Free Zone Establishment | | Austria |
| Voest Alpine Tubulars Gmbh | | Austria |
| Voest Alpine Tubulars GmbH & Co KG | | Austria |
| VON Holland Cooperaief U.A. | | Netherlands |
| Westpro Fluid Handling Systems Pty Ltc. | | South Africa |
| Wilson Distribution Holdings BV | | Netherlands |
| Wilson Distribution LLC | | Delaware |
| Wilson International, Inc. | | Delaware |
| Wilson Libya Holdings, LLC | | Delaware |
| Wilson Management, LLC | | Delaware |
| Wilson MENA, FZE | | United Arab Emirates |
| Wilson Supply Chain Services Limited | | British Virgin Islands |
| Wilson Supply Chain Services Pty Ltd. | | Australia |
| WILSONCOS, L.L.C. | | Delaware |
| Woolley, Inc. | | Texas |
| Wyoming Pipe & Tool Corp. | | Wyoming |
| XL Systems Antilles, N.V. | | Netherlands |
| XL Systems Europe B.V. | | Netherlands |
| XL Systems International, Inc. | | Delaware |
| XL Systems, L.P. | | Texas |
| XST Holdings, Inc. | | Texas |
