Board of Directors
Independent Committees: Audit (Chair) and Corporate Governance
Career Highlights:
Served as Global Deputy Chief Executive Officer of Deloitte Touche Tohmatsu Limited (“DTTL”) from 2011 until 2014.
Served as Deputy Chief Executive Officer of Deloitte LLP (“Deloitte U.S.”) from 2003 to 2011.
Served as Managing Partner of the financial advisory business and the Mid-America region of Deloitte U.S. In fulfilling his roles for DTTL and Deloitte U.S., he acted in his capacity as a partner in Deloitte U.S. He retired as a partner of Deloitte U.S. in May 2014.
Served as an independent consultant in the information technology sector from November 2014 until May 2015.
Holds a Bachelor of Science degree from the University of Saskatchewan (Canada) and a Master of Business Administration degree from Duke University’s Fuqua School of Business.
Other Boards:
Served on the board of directors of Brookshire Grocery Company, a privately held company with approximately 220 grocery stores, from 2018 until February 2026, where he served as the Chair of the Audit Committee, the Nominating and Governance Committee and also served as the independent lead director.
Served as a director of Dye & Durham Corporation, a global leader in legal software and technology, from 2015 until December 2024, where he also served as Chairman of the Board.
Skills and Qualifications:
Extensive domestic and international experience and expertise in accounting, auditing, financial reporting, taxation and management consulting.
Extensive senior executive experience provides him with valuable expertise in leadership, strategic vision and corporate governance matters.
More than 47 years as a Certified Public Accountant.
Experience in the information technology sector.
Independent Committees: Independent Board Chair
Career Highlights:
Board Chair of ONEOK, Inc.
Served as Senior Vice President-Corporate Development of Southern Union Company, a diversified natural gas company engaged in the transportation, storage, gathering, processing and distribution of natural gas that was acquired by Energy Transfer Equity, L.P., from November 2006 until January 2007 and as Senior Vice President and Chief Financial Officer from July 2005 until November 2006.
Served as Chief Financial Officer of Frontier Oil Corporation, a former energy company engaged in crude oil refining and wholesale marketing of refined petroleum products, from 1994 until 2005 and as Treasurer from 1991 until 1994.
Served as an investment banker with Smith Barney, Harris, Upham & Co., Inc. in New York and Houston, after joining the company as an associate in 1985.
Holds a Bachelor of Science degree in Geology and Geophysics from Yale University and a Master of Business Administration degree from the Wharton School of the University of Pennsylvania.
Other Boards:
Served as a member of the board of directors of Noble Corporation plc, a U.K.-based offshore drilling contractor, from February 2006 until February 2021, where she served on the Compensation and Finance Committees and was Chair of the Nominating and Governance Committee.
Served as a member of the board of directors of NATCO Group, Inc., an oil field services and equipment manufacturing company, from 2004 until its sale to Cameron International Corporation in November 2009.
Served on the ONEOK Board of Directors in 2004 and 2005 and was also a member of the board of directors of ONEOK Partners GP, L.L.C., from 2009 until the consummation of its merger with ONEOK in June 2017.
Skills and Qualifications:
Broad public company executive and director experience brings deep understanding of various segments within the energy industry, including exploration and production, refining and marketing, natural gas transmission, processing and distribution, production technology and contract drilling.
Extensive public company CFO experience brings deep audit, senior accounting, finance, capital markets, strategy, corporate development and management expertise.
Valuable perspective and hands-on experience as an exploration geologist in the oil industry from 1980 until 1983.
Achieved the Computer Emergency Response Team (CERT) Certificate in Cybersecurity Oversight in August 2024 from the Carnegie Mellon University, Software Engineering Institute.
Independent Committees: Executive Compensation and Corporate Governance
Career Highlights:
Served as Vice President, Integration Management, at United Airlines, Inc., from 2010 until 2012.
Served in executive roles in both legal and business functions at Continental Airlines/United Airlines during her career at the airlines from 1999 until 2012.
Served as an attorney with the law firm of Vinson & Elkins from 1993 until 1999.
Was engaged in real estate development with Trammell Crow Company from 1986 until 1990.
Served as a consultant with Arthur Andersen & Co. in the area of information technology from 1983 until 1986.
Holds a Bachelor of Business Administration degree from the University of Texas and a Juris Doctor from the University of Texas School of Law.
Other Boards:
Served on the board of directors of Magellan Midstream Partners L.P., a former publicly traded partnership in the business of transporting, storing and distributing refined petroleum products and crude oil, from 2016 until its acquisition by the Company in September 2023, where she served on the Compensation Committee, the Nominating and Governance Committee and the Sustainability Committee.
Served on the board of directors of Bristow Group Inc., which is a leading provider of offshore oil and gas transportation, search and rescue and aircraft support services, from 2012 until 2019, where she was Chair of the Compensation Committee and served on the Corporate Governance and Nominating Committee.
Served on the board of directors of Republic Airways Holdings, Inc., one of the largest regional airlines in North America, from 2017 until May 2025, where she was Chair of the Compensation Committee.
Serves as President and a member of the board of directors of A Lighted Path, since 2023, a nonprofit that focuses on improving outcomes for challenged youth.
Skills and Qualifications:
Valuable industry knowledge and experience having served as a director of other energy infrastructure companies.
Extensive executive, legal, project management and risk management experience in the capital intensive and highly regulated aviation industry.
Extensive board-level experience in mergers and acquisitions, corporate governance and executive compensation as a public company director, committee member, and committee chair.
Practiced corporate law for over twenty years.
Independent Committees: Audit, Corporate Governance
Career Highlights:
Held positions of increasing responsibility, from 1997 until January 2019, at Sasco Capital Inc., an independent, institutional investment firm focused primarily on corporate turnarounds, restructurings and transformations, until he retired as Managing Director and Co-Portfolio Manager.
Worked in equity research and sales for Roulston Research Company from 1989 until 1996 and for McDonald & Company from 1986 until 1989.
Holds a Bachelor of Arts degree in American studies from the University of Dayton.
Holds a Master of Legal Studies in Energy and Natural Resource Law from the University of Oklahoma.
Other Boards:
None.
Skills and Qualifications:
Brings valuable perspectives with more than 30 years of experience in the U.S. equities markets, including constructive engagement with senior management teams to develop a deep understanding of their corporate vision, value creation philosophy, commitment to long-term sustainable value and shareholder alignment.
Distinguished career working on more than 50 strategic, transformational restructurings spanning several industries including the energy value chain from upstream exploration and production, onshore and offshore oil field services, midstream, downstream petrochemicals and refining, regulated utilities and merchant energy.
More than 20 years of broad experience as an analyst in the commodity, energy, industrial and utility sectors brings critical insights into industry-relevant macroeconomic conditions and trends.
Extensive financial experience and expertise.
Independent Committees: Executive Compensation, Corporate Governance (Chair)
Career Highlights:
Served as Chief Executive Officer of the general partner of TransMontaigne Partners L.P., a provider of integrated terminaling, storage, transportation and related services to customers engaged in the distribution and marketing of refined petroleum products and crude oil, from September 2006 until August 2009, as Chief Financial Officer from January 2003 until September 2006, and Controller from May 2002 until January 2003.
Served as a partner with KPMG LLP in its Silicon Valley and National (New York City) offices from July 1994 until May 2002.
Served as a Professional Accounting Fellow in the Office of Chief Accountant of the United States Securities and Exchange Commission from July 1992 until July 1994.
Holds a Bachelor of Business Administration degree from the University of Wisconsin—Eau Claire, and a Master of Business Administration degree from the University of Wisconsin—Madison.
Other Boards:
Served on the board of directors of the general partner of Valero Energy Partners LP, an owner and operator of crude oil and refined petroleum product pipelines, terminals and other transportation and logistics assets, from 2013 until its merger with Valero Energy Corp. in January 2019, where he served as the Chair of the Audit Committee and a member of the Conflicts Committee.
Served as a director of the general partner of MarkWest Energy Partners, L.P., an owner and operator of midstream service businesses, from 2011 until its merger with MPLX LP in December 2015, where he was Chair of the Audit Committee and a member of the Compensation Committee.
Served as a director of the general partner of Oiltanking Partners, L.P., a partnership that was engaged in the storage and transportation of crude oil, refined petroleum products and liquified petroleum gas, from August 2011 until February 2014, where he was Chair of the Audit Committee and a member of the Conflicts Committee.
Skills and Qualifications:
Public company CEO experience in the energy sector provides him with valuable leadership skills and strategic vision.
Broad CFO, senior accounting and audit committee experience brings audit, financial reporting and risk management depth to the Board.
Brings a unique and valuable perspective to the Board having served as a director of various publicly traded master limited partnerships in the energy infrastructure industry.
Independent Committees: Audit, Corporate Governance
Career Highlights:
Served as President and Chief Executive Officer of Weatherford International plc ("Weatherford"), a global energy services company, from April 2017 until June 2020 (Weatherford filed for voluntary Chapter 11 bankruptcy in July 2019 and emerged in December 2019).
Served as Executive Vice President and Chief Financial Officer of Halliburton Company, Inc., a provider of products and services to the energy industry, from 2016 until March 2017, its Executive Vice President and Chief Integration Officer from 2015 until 2016, its Executive Vice President and Chief Financial Officer from 2008 until 2015, and its Senior Vice President and Chief Accounting Officer from 2003 until 2007.
Served as Senior Vice President and Chief Financial Officer of Tenneco Inc., a manufacturer and marketer of automotive products, from 1999 until 2003 and held various Vice President positions from 1995 until 1999.
Served as an Audit and Advisory Partner in Arthur Andersen’s Energy Division from 1991 until 1995.
Holds a Bachelor of Business Administration degree in Accounting from Baylor University.
Other Boards:
Serves as a director of Seadrill Limited, a drilling contractor providing worldwide offshore drilling services to the oil and gas industry, since February 2022, where he is Chair of the Audit and Risk Committee.
Serves as a director of Westlake Corporation, a global manufacturer and supplier of materials and innovative products, since May 2018, where he is Chair of the Audit Committee and a member of the Compensation, Corporate Risk and Sustainability and Nominating and Governance Committees.
Served on the board of directors of Marathon Oil Corporation, an oil and gas exploration and production company, from December 2022 until its acquisition by ConocoPhillips in November 2024, where he was Chair of the Compensation Committee and a member of the Health, Environmental, Safety and Corporate Responsibility Committee.
Served on the board of directors of Archrock, Inc., an energy infrastructure company, from 2009 until July 2018, where he was Chair of the Audit Committee and a member of the Compensation Committee.
Serves on the board of directors of MOM Holding Company (Momentive Performance Materials), a privately-held global high-performance silicones and specialties company, since December 2024, where he is Chair of the Audit Committee and a member of the Operations Committee.
Serves on the Board of Trustees of Baylor College of Medicine.
Skills and Qualifications:
Experience as a public company CEO brings valuable competencies in leadership, strategy, operations, stakeholder relations, finance, corporate development and governance to the Board.
Over 37 years of experience in the oil and gas industry provides him with a broad understanding of and valuable insight into the markets in which the Company operates.
Public company CFO experience and numerous audit committee chair positions provide him with a deep understanding of accounting, financial reporting, forecasting, auditing and risk management.
Membership on board committees overseeing HSE (Health, Safety and Environment) provides technical and operational knowledge in managing risk and ensuring effective implementation of the Company's HSE policies.
Distinguished background as an outside auditor and certified public accountant.
Independent Committees: Non-Independent (Chief Executive Officer)
Career Highlights:
President and Chief Executive Officer of ONEOK, Inc., since June 2021.
Served as President and Chief Executive Officer of ONE Gas, Inc. from February 2014 until June 2021.
Served as Executive Vice President, Commercial, of ONEOK and ONEOK Partners in January 2013 until January 2014.
Served as Executive Vice President and Chief Operating Officer of ONEOK and ONEOK Partners from 2011 until 2013, with responsibilities for natural gas gathering and processing, natural gas pipelines, natural gas liquids, natural gas distribution and energy services business segments.
Served as President of the ONEOK Distribution Companies – Oklahoma Natural Gas, Kansas Gas Service and Texas Gas Service, from 2009 until 2011.
Served as Vice President, Gathering and Processing of ONEOK and ONEOK Partners from 2004 until 2009.
Served in officer positions at Northern Border Partners, a leading natural gas transporting company, from 2001 until 2004; Bear Paw Energy, a former midstream natural gas company, from 1998 until 2001; and KN Energy, a former integrated natural gas company, from 1995 until 1998.
Holds a Bachelor of Science degree in Mechanical Engineering from the University of Alabama in Tuscaloosa and is a graduate of Harvard Business School’s Advanced Management Program.
University of Alabama College of Engineering Distinguished Fellow.
Other Boards:
Served as a director of ONE Gas, Inc., from 2014 until June 2021.
Board member of the American Petroleum Institute (API).
Former member of the American Gas Association’s board of directors and served as its 2017 Chairman.
Former board member of the Interstate Natural Gas Association of America.
Former board member of the Texas Pipeline Association.
Former board member of the North Dakota Petroleum Council.
Former board member of the Western Energy Alliance.
2024 Tulsa Area United Way Annual Campaign Tri-Chair.
Former board member of the Tulsa Community College Foundation and past-chair of the Audit Committee.
Former board member of the Tulsa Community Foundation and past-chair of the Audit Committee.
Skills and Qualifications:
Having served as CEO and President of ONEOK, has a deep understanding of all areas of the Company’s business, operations and affairs, including strategic and financial planning, acquisitions and divestitures, executive management and development, corporate governance, executive compensation, and compliance and risk management.
With a 44 year career in the energy sector, brings valuable industry specific operations experience in engineering, construction and operations management, and finance.
Extensive involvement with trade associations representing the oil and gas industry give him important knowledge of and insight into public policy and regulatory matters relevant to the Company.
Independent Committees: Executive Compensation, Corporate Governance
Career Highlights:
Serves as Chief Executive Officer of Mountaintop Consulting, a strategy, organizational development, and leadership advisory firm she founded in 2009. Mountaintop advises corporate clients globally, including Fortune 500 energy companies, investment banks, law firms, and private equity firms.
Served as a Vice President at Goldman Sachs & Co. until 2009, where she made private-equity investments in high-growth businesses and served on the board of several portfolio companies, after beginning her career as an investment banker in Goldman’s Mergers and Strategic Advisory Group advising oil and gas, retail, and industrial companies on M&A and corporate finance.
Holds a Bachelor of Arts, with honors, in Ethics, Politics and Economics from Yale University along with a Juris Doctor from Yale Law School.
Other Boards:
Served on the Board of Directors of Cadence Bank from 2019 until its merger with Huntington Bank in February 2026. Served on the Audit, Trust and Financial Services, and Nominating and Corporate Governance Committees.
Serves on the Board of Trustees of Baylor College of Medicine, where she chairs the Global Committees.
Served on the Board of Directors of Switchback II Corporation from its inception until its merger with Bird Global in November 2021.
Skills and Qualifications:
Deep expertise in business strategy, leadership development, and talent management gained through more than 16 years as the Chief Executive Officer of Mountaintop Consulting, advising multinational energy companies and other blue-chip firms on leadership effectiveness, business strategy, and organizational performance.
Broad experience in corporate finance, private equity, and M&A, grounded in her tenure as a Vice President at Goldman Sachs & Co., where she led investments in high-growth businesses and advised companies in the oil and gas, retail, and industrial sectors on complex strategic transactions.
Nationally recognized leadership and coaching credentials, including Gallup-Certified Strengths Coach status and membership in the Forbes Coaches Council, providing the Board with specialized insight into talent development and retention, executive performance, culture, and leadership succession.
Proven governance leadership through service on public, private, and nonprofit boards, with expertise in corporate governance, enterprise risk oversight, CEO succession planning, stakeholder engagement, and strategic transformation.
Independent Committees: Executive Compensation (Chair) and Corporate Governance
Career Highlights:
Serves as President of Strategic Communications Consulting Group, an advisory firm to the business, public, quasi-public, and non-profit organizations and utility industries, since 2005.
Served as Executive Vice President and a member of the board of directors of Hunt Building Corporation, a privately held company engaged in construction and real estate development, from 2001 until 2003.
Spent 20 years in the electric utility industry at El Paso Electric Company, when it was a publicly traded, investor-owned utility, where he served in various senior-level executive positions, including General Counsel, Senior Vice President for Customer and Corporate Services, Executive Vice President and Chief Operating Officer.
Holds a Bachelor of Arts degree in Political Science/American History from Texas Tech University and a Juris Doctor degree from St. Mary’s University School of Law.
Other Boards:
Serves as a director of ONE Gas, Inc., since 2014, where he serves on the Audit, Executive Compensation and Corporate Governance Committees and is the Lead Independent Director.
Skills and Qualifications:
Extensive senior management, operational, entrepreneurial and legal experience in a variety of industries.
Extensive legal and business, strategic planning, operational and regulatory compliance experience and expertise by virtue of his various roles at an electric utility company.
Strong public company audit, executive compensation and governance background as a member of various board committees.
Practiced law for more than 40 years.
Independent Committees: Audit, Corporate Governance
Career Highlights:
Served as Chairman and Chief Executive Officer of BASF Corporation, a chemical company, from May 2015 until May 2021, with responsibility for the Monomers, Performance Materials, Petrochemicals, Intermediates and North America divisions, and as a Member of the Board of Management Directors of its parent BASF SE, from 2012 until May 2021.
Served as Vice President and General Manager of Specialty Construction Chemicals of W.R. Grace and Company, from 2000 until 2004, where he led the strategy, development and growth of that unit worldwide.
Served as Vice President and General Manager of the Packaged Products business of the BOC Group from 1998 until 2000.
Holds a Bachelor of Science degree in Chemical Engineering from Syracuse University and a Master of Business Administration degree from the Wharton School of the University of Pennsylvania.
Served on the Dean’s Leadership Council for the College of Engineering and Computer Science at Syracuse University.
Other Boards:
Serves as a director of Air Products and Chemicals, Inc., a leading industrial gases company, since August 2021, where he maintains the role of Chairman of the Board and also serves as a member of the Executive and Management Development and Compensation Committees.
Served on the board of directors of Inter Pipeline, an energy infrastructure company, from 2020 until 2021.
Skills and Qualifications:
Valuable senior management skills with more than 35 years of experience in the chemical industry.
Extensive experience driving strategy and growth across broad value chains in the chemical industry, including petrochemicals, polymers and highly specialized chemicals.
Valuable public company audit, governance and executive compensation experience by virtue of his board committee roles.