• Work experience in several segments of the energy industry, including Chief Financial Officer and SVP-Corporate Development at Southern Union Company (now part of Energy Transfer), Chief Financial Officer of Frontier Oil Corporation (now part of HF Sinclair Corporation), and as an exploration geologist with Amerada Hess and with Ultramar, PLC.

• Past board experience includes Noble Corp., an offshore drilling contractor, NATCO Group, an oilfield service company and Link Energy (previously EOTT), a crude oil gatherer and marketer

• Worked for six years as an investment banker, specializing in the energy industry, with Smith Barney, Harris, Upham & Co., Inc. in New York and Houston after joining the company as an associate in 1985.

• Education includes an M.B.A. concentrated in Finance from the Wharton School and a B.S. in Geology & Geophysics from Yale.

• Served for six years on the Solid Waste Reduction and Recycling Board in her Houston community, focused on educating residents on the value of proper waste management and participated in many “green” community events.

CAREER HIGHLIGHTS:

• Board Chair of ONEOK, Inc.

• Retired in 2007 from Southern Union Company where she served as Senior Vice President Corporate Development from November 2006 to January 2007 and as Senior Vice President and Chief Financial Officer from July 2005 to November 2006.

• Served as an executive officer of Frontier Oil Corporation, having served as Chief Financial Officer from 1994 to 2005 and as Treasurer from 1991 to 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, when she graduated from the Wharton School of the University of Pennsylvania with an M.B.A.

• Served as an exploration geologist in the oil industry, having earned a Bachelor of Science in Geology and Geophysics from Yale University in 1980.

• Former member of the Board of Directors of Noble Corporation, plc a U.K.-based offshore drilling contractor, where she served on the Compensation and Finance Committees and was Chair of the Nominating and Governance Committee, and a former member of the Board of Directors of NATCO Group, Inc., a privately owned 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 the merger transaction with ONEOK in June 2017.

SKILLS AND QUALIFICATIONS:

• Broad experience and understanding of various segments within the energy industry (exploration and production, refining and marketing, natural gas transmission, processing and distribution, production technology and contract drilling), and significant senior accounting, finance, capital markets, corporate development and management experience and expertise.

• Demonstrated leadership and has been effective in her role as immediate past chair of our Audit Committee and Corporate Governance Committee and as past Lead Independent Director, and as current Board Chair.

Collin grew up in Texas and attended Texas Tech University where he graduated with honors earning his bachelor’s degree in business administration and economics in 2010. He later obtained a law degree from St. Mary’s University School of Law as a distinguished graduate with honors and remains in good standing with the Texas bar today. After three years of practicing law, Collin and his wife, Maxie, transitioned to Tulsa, Oklahoma, where he began working with Warren Clinic and Saint Francis Health System in 2015.

Saint Francis Health System is a $2.3B not-for-profit health system comprised of five hospitals, including a 1,000 bed tertiary care center, 168 bed heart hospital and children’s hospital with over 10,500 employees.

Over the last six years, Collin has held various leadership roles within the Warren Clinic and Saint Francis Health System. Collin currently serves as a senior vice president at Saint Francis Health System and as President of the Warren Clinic, Collin is responsible for the overall strategic direction and footprint of the physician enterprise, consisting of 700 providers across more than 100 locations throughout eastern Oklahoma.

In addition to leading the physician enterprise for Saint Francis Health system, Collin sits on the board of directors of Community Care, a jointly-owned provider-sponsored health plan. He is also a board member of Xavier Insurance Company, a captive insurance company for Saint Francis Health System.

Collin is a member of the American Health Law Association, American Academy of Provider Compensation Professionals and the American Academy of Healthcare Executives.

Michael Lissau, J.D., Senior Vice President and General Counsel for Saint Francis Health System joined the System in 2018. He received a Bachelor of Science in business administration from Westminster College in 1994 and Juris Doctorate from the University of Tulsa in 1998.