Board of Directors

Our Board’s composition is carefully considered by the Corporate Governance and Nominating Committee to ensure diversity in the broadest sense – of culture, background, outlook, experience, and tenure to bring together multiple, complementary perspectives. Our Directors bring a powerful range of skills and experience in relevant areas, including finance, exploration and production, environment, public policy, international business and leadership, as well as oilfield services.

This unique and highly impactful cross-section of capabilities enables our Board to help guide the Company’s strategic objectives and lead corporate governance practices. Further, while each member of our Board has held significant leadership positions in their respective professional fields, of equal importance is each Director’s personal ethics and integrity. Each of our Directors embodies the highest degree of personal and professional standards arming them with the qualified insights to deliver sustainable shareholder value.

William E. Macaulay

Chairman and Co-CEO, First Reserve


Mr. Macaulay is the Chairman and Co-Chief Executive Officer of First Reserve. He has been with First Reserve, a global private equity and infrastructure investment firm focused on the energy industry, since 1983. Mr. Macaulay is jointly responsible for supervision of the firm’s investment program and strategy, as well as overall management of the firm.

Mr. Macaulay sits on all of the firm’s investment committees. Mr. Macaulay served as a director of Weatherford Enterra from October 1995 to May 1998. Mr. Macaulay also served as Director of Corporate Finance for Oppenheimer & Co., Inc., where he worked from 1972 to 1982.

Previously, Mr. Macaulay served as Chairman of CHC Group Ltd., Dresser-Rand Group, Inc., Foundation Coal Holdings Inc. and Pride International, and as a director of Dresser, Inc. and National Oilwell Varco.



  • City College of New York, B.B.A.
  • University of Pennsylvania, Wharton School of Business, M.B.A.


Relevant Qualifications and Experience

  • Serves as Chairman, i.e. the lead director, of the Company’s Board
  • Significant investment and financial expertise as chairman of one of the world’s leading energy and natural gas resources private equity firms
  • Chief executive officer experience
  • Extensive knowledge of the oilfield service industry
  • Expansive depth of knowledge of the Company’s business, as a result of his 20-years of experience with the Company and its predecessor

Mark A. McCollum

President and Chief Executive Officer, Weatherford International plc


Mr. McCollum has over 36 years of leadership experience in the energy sector. Prior to joining Weatherford in March 2017 he served as Chief Financial Officer of Halliburton Company, a position he started in 2008 and resumed in July of 2016 following an interim role as Chief Integration Officer during the pendency of Halliburton’s proposed acquisition of Baker Hughes Incorporated.

Prior to joining Halliburton, Mr. McCollum held a number of senior positions at Tenneco, Inc., including Chief Financial Officer, and served as an Audit and Advisory Partner in Arthur Andersen’s Energy Division, where he began his career. He is also a registered CPA in the State of Texas.

Mr. McCollum is a member of the Board of Directors and the Audit and Compensation Committees at Archrock, Inc., previously known as Exterran Holdings. He is also a Regent at Baylor University and on the Baylor College of Medicine Board of Trustees.



  • Bachelor Degree in Business Administration and Accounting, Baylor University


Relevant Qualifications and Experience

  • Extensive knowledge of and experience in the oilfield service industry
  • Significant leadership experience, with a strong background in accounting and finance
  • Deep understanding of the challenges facing the industry and strong knowledge of customer demands and desires

Mohamed A. Awad

Chairman (Retired), Schlumberger - Middle East and Asia


Mr. Awad is a retired executive who most recently served as Chairman of Schlumberger–Middle East and Asia, a role he held from 2001 to 2012.

Mr. Awad joined Schlumberger in 1981 and, over the next 30 years, held positions of increasing responsibility, both internationally and in the U.S., including in the wireline, well services, drilling and measurement, oilfield services and corporate groups. In addition to his role at Schlumberger, Mr. Awad served as a director on Arabian Drilling Company in Saudi Arabia from 2005 until 2012.



  • University of Tulsa, M.S., Petroleum Engineering
  • Cairo University, B.S., Petroleum Engineering


Relevant Qualifications and experience

  • Wealth of experience with a career in the oilfield services industry spanning 30+ years
  • Strong technology background which enables him to help guide the Company’s strategic direction
  • Deep appreciation for diversity established through international leadership experience
  • Expertise in Middle East and Asia regions proves beneficial in conducting business in emerging markets

David J. Butters

Chairman, President and CEO, Navigator Holdings, Ltd.


Mr. Butters has been Chairman, President and Chief Executive Officer of Navigator Holdings, Ltd., an international shipping company, the principal business of which is the transport of liquefied petroleum gas, since September 2008. 

From 1969 to September 2008, Mr. Butters was a Managing Director of Lehman Brothers Inc., an investment banking company and was previously Chairman of the Board of Directors of ACOL Tankers Ltd., a privately held oil tanker company.



  • Boston College, B.S.
  • Colombia University Business School, M.B.A.


Relevant Qualifications and Experience

  • Extensive career in investment banking and finance, an asset to the Audit Committee

  • Chief executive officer and leadership experience

  • Broad knowledge of oil and gas and shipping industries

  • Expansive depth of knowledge of the Company’s business, as a result of his 30-year directorship on our Board

Roxanne J. Decyk

Executive Vice President (Retired), Royal Dutch Shell


Roxanne Decyk has served in several senior executive roles including as head of corporate strategy, human resources, administration, and government affairs. An accomplished lawyer, Roxanne leveraged her early experience into commercial roles, which then successfully led her into strategic planning. From there, she became an advisor to CEOs and boards, and ultimately served as Shell’s ambassador in Washington D.C.

Roxanne ran corporate strategy and planning for Royal Dutch Shell, creating a new strategic management process. She moved to Houston and was promoted to Senior Vice President of Corporate Affairs and Human Resources in 2002. This role encompassed HSE, sustainability, communications, government affairs, diversity and human resources. Roxanne was then transferred to The Hague in 2005 to lead Sustainable Development.  In 2009, she moved to Washington, D.C., where she led Government Affairs for Shell as an Executive Vice President and served as Shell’s Chief Diplomat.

Roxanne retired from Shell in 2010 and began serving on several public company boards including Logica PLC, Petrofac Ltd, and Orbital. She joined the board of Ensco in 2013 and then DigitalGlobal.


  • University of Illinois, B.A., English Literature and Advertising
  • Marquette University Law School, Juris Doctor

Relevant Qualifications and Experience

  • Extensive senior executive experience including head of corporate strategy, human resources, administration, and government affairs
  • Over 40 years of professional experience and over 20 years of specific experience in the oil and gas industry
  • Background in Law


John D. Gass

Vice President (Retired), Chevron Corporation


Mr. Gass is a retired executive who was formerly a Vice President of Chevron Corporation and President of Chevron Gas and Midstream, a role held from 2003 until 2012.

Mr. Gass joined Chevron in 1974 and his career spanned 38 years during which he held positions of increasing responsibility in engineering, operations and executive management, serving both domestically and various global locations.

Mr. Gass has been a director of Southwestern Energy Company since November 2012. He became a director of Suncor Energy Inc. in February 2014. For the past two years, he served as Chairman of the Board of Visitors for the Vanderbilt School of Engineering and is on the Advisory Board for the Vanderbilt Eye Institute. He is a member of the American Society of Civil Engineers and the Society of Petroleum Engineers.



  • Vanderbilt University, B.E., Civil Engineering
  • Tulane University, M.E., Civil Engineering 


Relevant Qualifications and Experience

  • 38 years of experience in the energy exploration and production industry, providing insight into the needs and priorities of the Company’s customers

  • Executive leadership experience, with a strong emphasis in operational strategy, major project development, and executive management

  • Significant international experience in Europe, Africa and the Asia Pacific region

Francis S. Kalman

EVP and CFO (Retired), McDermott International, Inc.


Mr. Kalman serves as a senior advisor to a private investment subsidiary of Tudor, Pickering, Holt and Co., LLC that specializes in direct investments in upstream, midstream and oilfield service companies.

Mr. Kalman served as Executive Vice President of McDermott International, Inc. from 2002 until his retirement in 2008 and as Chief Financial Officer from 2002 until 2007. From 2000 to 2002, he was Senior Vice President and Chief Financial Officer of Chemical Logistics Corporation; from 1999 to 2000, he was a principal of Pinnacle Equity Partners, LLC; from 1998 to 1999, he was Executive Vice President and Chief Financial Officer of Chemical Logistics Corporation; and from 1996 to 1997, he was Senior Vice President and Chief Financial Officer of Keystone International, Inc.

Mr. Kalman started his career as a Certified Public Accountant with PriceWaterhouse and Co. In addition to the above, he has served in various financial capacities with Atlantic Richfield Company (1975 to 1982), United Gas Pipeline (1982 to 1991) and American Ref-Fuel (1991 to 1996).

In addition to his existing directorships, during the past five years, Mr. Kalman has also served on the board of Pride International, Inc., which merged into Ensco plc, and CHC Group Ltd.



  • Long Island University, B.S., Accounting


Relevant Qualifications and Experience

  • Extensive knowledge in accounting and financial reporting

  • Chief financial officer experience and serving as chairman of the audit committee of other public companies

  • Executive leadership and strategic planning experience in the international energy service industry

  • Experience in multiple components of the energy industry, including internationally

David S. King

Chief Executive Officer (Retired), Archer Company LTD.


David King has more than 35 years experience in the energy service industry including serving in senior-level roles for Halliburton Company. David retired from Halliburton in 2010 where he served as the President of the Completions and Production Division, a $7 billion business.

Since 2010, David has served as a Senior Advisor to Kenda Capital and serves on two boards; Enventure and TubeFuse. In addition, David serves on the Investment Committee of Sheridan Production, an E&P company. In 2013, David came out of retirement when he was recruited to serve as CEO of Archer Company LTD. In this capacity, he was instrumental in driving a turnaround, which created strong financial and operational performance over six consecutive quarters. He was also involved in the divestiture of their North American assets in 2015.David recently retired from Archer and continues to serve on the Sheridan Board.


  • University of Alabama, B.S., Civil Engineering
  • Harvard Business School, Advanced Management Program

Relevant Qualifications and Experience

  • More than 35 years of broad experience in the energy service industry
  • Chief Executive Officer and Board experience
  • Results-oriented commercial and operations leader


Robert K. Moses, Jr

Private Investor, Black Jack Resources, Inc.


Mr. Moses is a private investor, principally in the oil and gas exploration and oilfield services sectors in Houston, Texas, and has invested for more than 20 years.

He served as Chairman of the Board of Directors of Weatherford Enterra from May 1989 to December 1992 and continued on as a director of Weatherford Enterra from December 1992 to May 1998.

Mr. Moses also devotes substantial time to serving on boards of local healthcare and educational institutions.



  • University of Texas, B.A., Economics


Relevant Qualifications and Experience 

  • Significant investment experience, with an understanding of how to manage through commodity cyclicality

  • Extensive knowledge of and experience in the oilfield service industry and ability to identify value opportunities

  • Committed to enhancing and improving the communities in which the Company operates

  • Substantial institutional knowledge of one of Weatherford’s most significant legacy companies and a committed ambassador for the Company with customers and local communities

Dr. Guillermo Ortiz

Partner and Chairman, BTG Pactual Mexico


Dr. Ortiz is currently a partner and Chairman for BTG Pactual for Latin America, a Latin American investment bank based in Brazil.

He served as the Chairman of Banorte, the third largest bank in Mexico from 2010 until 2014; Governor of the Bank of Mexico from 1998 until 2009; and as Chairman of the Board of the Bank for International Settlements (BIS) in 2009. He previously served as Secretary of Finance and Public Credit in Mexico, from 1994 to 1998.

Dr. Ortiz was also Executive Director at the International Monetary Fund and is a director of several international non-profit organizations. He is currently a member of “The Group of Thirty,” an international body of leading financiers and academics.



  • National Autonomous University of Mexico, B.A., Economics
  • Stanford University, M.Sc. and Ph.D., Economics


Relevant Qualifications and Experience

  • Extensive international finance and banking experience in the public and private sector

  • Expertise regarding global economic matters and multi-national financing, an important element of the Company’s global strategy

  • International perspective, with a focus on Latin America

  • Frequent speaker, author of topical articles, and educator, providing a current perspective on financial matters

Emyr Jones Parry

Chancellor, Aberystwyth University


Sir Emyr has served as the Chancellor of Aberystwyth University, located in Wales, from 2008 to the present and was Chairman of the All Wales Convention, a body established by the Welsh Assembly Government to review Wales’s constitutional arrangements, from 2007 to 2009.

He was Chairman of the Corporate and Social Responsibility External Advisory Group of First Group plc, a transport operator, from 2008 to 2011 and was the Chairman of Redress, a human rights organization from 2008 to 2016. Sir Emyr previously held numerous diplomatic positions, including UK Permanent Representative to the UN from 2003 to 2007 and UK Ambassador to NATO from 2001 to 2003, specializing in European Union affairs including energy policy. He is also the President of the Learned Society of Wales and began his three-year term of office in May of 2014.



  • University of Cardiff, B.Sc., Theoretical Physics
  • University of Cambridge, Ph.D., Polymer Physics


Relevant Qualifications and Experience

  • Wealth of government relations, diplomatic and negotiation experience
  • High level of public and social policy knowledge
  • Important international perspective, with an emphasis on global issues and European markets
  • Years of dedicated focus on social responsibility, sustainability and human rights