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Management

Clay C. Williams

Clay C. Williams

President, Chairman, and Chief Executive Officer

Clay Williams is the Chairman, President, and Chief Executive Officer of National Oilwell Varco (NOV). Previously, he served as NOV’s President and Chief Operating Officer and its Executive Vice President and Chief Financial Officer. Prior to its merger with National Oilwell, Clay served as Varco’s Chief Financial Officer. He also served as Vice President of finance, Vice President of corporate development, and Vice President of pipeline services for Varco and Tuboscope before the merger between the two companies. Before Tuboscope, he worked for SCF Partners and Shell Oil Company. Clay also currently serves as a director of Benchmark Electronics, Inc. Clay has a Bachelor of Science in Civil and Geological Engineering from Princeton University and holds a Master’s of Business Administration from the University of Texas.

Jose Bayardo

Jose Bayardo

Senior Vice President and Chief Financial Officer

Jose Bayardo is Senior Vice President and Chief Financial Officer of National Oilwell Varco (NOV). Prior to joining NOV in 2015, Jose served as Senior Vice President, Resource and Business Development at Continental Resources, Inc. and spent nine years serving in various roles at Complete Production Services, Inc. including Senior Vice President, Chief Financial Officer and Treasurer. Prior to joining Complete Production Services, Jose was an investment banker with J.P. Morgan. Jose brings a wealth of financial experience to NOV having worked both in the oil and gas industry and in investment banking during his career. He holds a Bachelor of Science in Chemical Engineering from the University of Texas at Austin, a Master of Engineering Management from the McCormick School of Engineering at Northwestern University and a Master of Business Administration from the Kellogg Graduate School of Management at Northwestern University.

Hege Kverneland

Hege Kverneland

Corporate Vice President and Chief Technology Officer

Hege Kverneland currently holds the position as Corporate Vice President and Chief Technology Officer at National Oilwell Varco. She has over 20 years of engineering and product management experience, contributing to quality assurance, research, and product development. Hege began with FluScan in 1991, later acquired by Hitec in 1994. In 1999, National Oilwell Varco acquired Hitec, at which point Hege became a part of the NOV family. In 2001, Hege became Corporate R&D manager at NOV and held this position until 2009 before transitioning to her current position. Throughout her career, she contributed many new product developments such as a new mud pump design, different PM-motor designs, and heave compensation systems. She has authored numerous SPE/IADC papers within drilling as well as two textbooks on Offshore Hydraulics. Hege received a Master’s of Science in Mechanical Engineering from the Norwegian University of Science in 1990 and graduated from the General Management Program(GMP) at Harvard Business School in 2009.

David Reid

David Reid

Chief Marketing Officer

David Reid is Chief Marketing Officer at National Oilwell Varco (NOV). He is charged with developing the market and strategic engine of NOV across regional operations and business segments in order to offer their customers a most valued position in their relative markets. David joined Varco International in 1992, and has lived in Scotland, California and Houston while working world-wide in a number of roles covering business development, product development, leadership, and management. David Reid serves on the NOV and Schlumberger IntelliServ Joint Venture Board, as well as the IADC Executive Board as the Vice President for Services, and is a founding member of the SPE Drilling Systems Automation Technical Section. David is currently serving on the SPE Board as a Technical Director of Drilling.

Isaac Joseph

Isaac Joseph

President, NOV Wellbore Technologies

Isaac Joseph is President of the NOV Wellbore Technologies Segment of National Oilwell Varco (NOV). Isaac began his oil & gas career with Tennessee Gas Pipeline. He worked in various positions from 1982 to 1995 in sales, operations and sales management roles for Plastic Applicators and Tuboscope Vetco International. He later joined ICO Worldwide in 1995, was promoted to Senior Vice President of Sales and named President in 1998. In 2002, Tuboscope acquired ICO and Isaac was named Vice President, Western Hemisphere. After the merger of National Oilwell and Varco, he was named President of Tuboscope where he led a global team of more than 6,500 employees. Isaac graduated from the University of Southwestern Louisiana, obtaining a Bachelor’s degree in business management.

Joe Rovig

Joe Rovig

President, Rig Systems and Rig Aftermarket

Joe Rovig is the President of the Rig Technologies & Aftermarket group of National Oilwell Varco (NOV). Joe joined National Oilwell Varco in 2002. He has served as Group Vice President of Global Operations, Vice President of the Eastern Hemisphere, Director of Service and Repair and Senior Vice President of the Offshore Drilling Equipment group within NOV’s Rig Solutions division. Prior to joining NOV, he worked for two drilling contractors in various positions, both domestically and internationally. His internationally-based positions cover twenty years of experience with multiple locations in Asia and Europe.

Kirk Shelton

Kirk Shelton

President, Completion & Production Solutions

Kirk Shelton began his career with TRW Mission, now a part of National Oilwell Varco (NOV), in 1980 working in various inside sales and operations, outside sales, and sales management roles in Oklahoma, North Dakota, and South Texas. After TRW sold Mission to Sandvik, who eventually sold their drilling related products to National Oilwell in 1989, he became Regional Manager of this division before becoming Global Sales and Operations Manager for National Oilwell’s drilling related products in 1998. Two years later, Kirk became Vice President of Sales and Operations for all products sold under the Mission banner. In 2007, Kirk became President of this group, which became part of the Completion and Production Solutions segment in 2014. This segment serves a variety of well intervention service production systems and subsea production technologies. Kirk graduated from East Central University, obtaining a Bachelor’s degree in Management with a background in Marketing.

Craig L. Weinstock

Craig L. Weinstock

Senior Vice President and General Counsel

Craig Weinstock joined National Oilwell Varco (NOV) in October 2013 and currently serves as Senior Vice President and General Counsel. He previously served as Chief Compliance Officer and Vice President of Internal Audit. Before joining NOV he was a partner in the Locke Lord Bissell & Liddell, LLP law firm and clerk for U.S. District Court Judge Robert Parker. Craig brings significant experience and expertise to NOV in the areas of compliance and representing Boards of Directors, Audit Committees, individual directors, and corporate officers. Craig counseled Boards of Directors, Audit Committees and management for oilfield services companies and E&P companies regarding securities, governance, anti-corruption, trade compliance and other matters. He has extensive trial and appellate experience in federal and state trial court and has prosecuted and defended numerous cases involving complex securities and derivative issues. Craig obtained his Bachelor of Arts from the State University of New York at Albany in 1980 and his Juris Doctor from Vanderbilt University Law School in 1983.

Loren Singletary

Loren Singletary

Chief Industry Relations Officer

Loren Singletary is Chief Industry Relations Officer. Previously, he served as Vice President of Investor and Industry Relations and was responsible for the Noble Drilling account at the executive level. Loren joined National Oilwell Varco in 2003 as Vice President of Global Accounts, and responsibilities of Investor Relations were later added to his role. His work history includes broad experience in sales, marketing, pricing and forecasting activities. From 1998 to 2003, he was a co-owner and President of LSI Interests, Ltd., an oilfield distribution company specializing in electrical products and cabling that was acquired by National Oilwell. In addition to his vast experience in the oilfield service sector, Loren has also been involved in the upstream E&P sector, both onshore and offshore, as a private investor for the past 20 years and is currently on the Board of Directors for Vanguard Natural Resources. Additionally, he also serves as Chairman of the NOV/Schlumberger IntelliServ Joint Venture. Loren attended the University of Texas and received a Bachelor of Business Administration in Finance in 1971. Loren served in the United States Marine Corps Reserves from 1970 – 1976.

Scott Duff

Scott Duff

Chief Accounting Officer, Vice President & Corporate Controller

Scott Duff has been the Chief Accounting Officer, Vice President and Corporate Controller of National Oilwell Varco (NOV) since 2014. Scott served as NOV’s Vice President of Internal Audit since 2005. Prior to joining NOV, he held accounting positions at KPMG, Ernst & Young and SBC. Scott holds a BBA in Accounting from the University of Texas at San Antonio and is a Certified Public Accountant.

Bonnie  Houston

Bonnie Houston

Chief Administrative Officer

Bonnie Houston is Chief Administrative Officer. In this role, she is responsible for the Company’s human resources, organizational development, physical security and travel functions. Previously, she served as Senior Vice President Human Resources and Administration. Bonnie joined National Oilwell Varco in 2005 as part of the Next Generation Program, and has since held various roles in HR, most recently serving as Director of Organizational Development. Bonnie obtained her Bachelor of Science in Economics from Texas A&M University and her Master’s of Business Administration from Rice University.

Alex Philips

Alex Philips

Chief Information Officer

Alex Philips is the Chief Information Officer of National Oilwell Varco (NOV). In this position, Alex is responsible for overseeing all aspects of Information Technologies, Systems, Applications and Security to further our strategic goals. Alex joined Phoenix Energy Services, now a part of National Oilwell Varco (NOV), in 1997 as an IT Network Administrator. During Alex’s 17-year tenure at NOV he has served in various roles including IT Infrastructure Manager, ERP Director and, most recently, Chief Information Security Officer. Alex is a graduate of Rice University with a Master of Business Administration.

Rium Johnson

Rium Johnson

Chief Health, Safety, and Environmental Officer

Rium Johnson is the Chief Health, Safety, and Environmental Officer for NOV. She began her career in NOV’s NextGen program in 2008, and upon completing the program, moved into a special project management role for corporate engineering in 2009. In this role, Rium helped establish our Tier 4 Emissions Management Program and supported the creation of NOV Ventures. In 2012, she joined the design team to support the product acceleration mission tied to the development of NOV’s R&D Technology Center (RDTC) in Navasota, Texas. Rium was named Project Manager in 2014, overseeing the construction of the RDTC facility, and was further promoted to Vice President R&D Technology Center in June 2016. In 2019, Rium accepted her current role as the Chief HSE Officer for NOV. Rium holds a Bachelor of Science in Electrical Engineering from The University of Texas at Austin.

Blake McCarthy

Blake McCarthy

Vice President, Corporate Development & Investor Relations

Blake McCarthy is Vice President, Corporate Development for National Oilwell Varco (NOV), where he has global responsibility for mergers and acquisitions as well as the research and analysis of business opportunities, consistent with NOV’s long range and strategic plans. Blake joined National Oilwell Varco in 2017 as Director, Corporate Development. Prior to joining NOV, Blake worked as a Senior Analyst for Citadel Global Equities where he managed the firm’s investments in the energy services and equipment space. Prior to Citadel, Blake was an investment banker with Simmons & Company International, where he advised clients on mergers and acquisitions and capital market transactions within the energy space. Blake holds an A.B. degree from Princeton University.