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William A. Zartler

Founder, Chairman and Chief Executive Officer

Bill Zartler is the Founder, Chairman and Chief Executive Officer of Solaris Oilfield Infrastructure, Inc (“Solaris”). Bill is also the Executive Chairman of Aris Water Solutions. Bill brings over 30 years of experience to Solaris, with an extensive background in both building and managing growth businesses and energy industry investing. Prior to founding Solaris in 2014, Bill was a Founder and Managing Partner of Denham Capital Management, a global energy and commodities private equity firm. He led Denham’s global investing activity in the midstream and oilfield services sectors and served on the investment and executive committees. While at Denham, Bill served on the boards of numerous portfolio companies, including NGL Energy Partners (NYSE:NGL), Gulf Atlantic Operations, Kitimat LNG, Freebird Gas Storage, Cadre Proppants, MS Energy Services and Greene’s Energy Group. Previously, Bill held the role of Senior Vice President and General Manager at Dynegy Inc., building and managing the natural gas liquids business. Prior to that he held the roles of Feedstock Trading Manager and Business Analyst at Dow Hydrocarbons and Resources. Bill received the Ernst and Young Entrepreneur of the year award for the Gulf Coast Region in 2018. He earned a Bachelor of Science in Mechanical Engineering from The University of Texas at Austin and a Master of Business Administration from Texas A&M University. He also completed the Stanford Business School Executive Program and serves on the advisory board of the Cockrell School of Engineering at The University of Texas at Austin and serves on the board of directors of the Texas Business Hall of Fame Foundation.

James R. Burke

Director

James R. Burke has served as a member of the Board since May 2017 and served as a manager of our predecessor from October 2014 to May 2017. From July 2013 until January 2018 Mr. Burke served on the board of Centurion, a private equity sponsored oilfield services company based in Aberdeen, Scotland. Mr. Burke served as the Chief Executive Officer and President of Forum Energy Technologies (“Forum”) from May 2005 to October 2007 and as Chairman of Forum from 2007 to 2010. Mr. Burke retired from his position as Chairman of Forum in 2010, subsequent to which he evaluated potential opportunities prior to becoming a director of Centurion. Prior to joining Forum, Mr. Burke served as Chief Executive Officer of Access Oil Tools Inc. (“Access”) from April 2000 to May 2005. Before joining Access, Mr. Burke held various positions with Weatherford International Ltd. (“Weatherford”) from January 1991 to August 1999, including Executive Vice President responsible for all manufacturing operations and engineering at its Compressor Division. Prior to joining Weatherford, Mr. Burke was employed by Cameron Iron Works (“Cameron”) from 1967 to 1989, where he held positions of increasing seniority, including Vice President of Cameron’s Ball Valve division. Mr. Burke holds a Bachelor of Science in Electrical Engineering from University College, Dublin, Ireland, and a Master of Business Administration from Harvard University.

Laurie H. Argo

Director

Ms. Argo became a member of the board of directors in March 2022. Since 2019, Ms. Argo has also served on the board of the general partner of Ratter Midstream, LP and is a member of the Audit Committee and the Conflicts Committee. From August 2018 through June 2021, Ms. Argo served as a director on the board of EVRAZ plc, a multinational, vertically integrated steel making and mining company and was a member of the Audit, Remuneration and Stakeholder Engagement Committees. Since October 2017, Ms. Argo has performed consulting services for clients within the energy industry. From January 2015 until September 2017, Ms. Argo served as Senior Vice President of Enterprise Products Holdings LLC, the general partner of Enterprise Products Partners L.P., a midstream natural gas and crude oil pipeline company. From October 2014 to February 2015, Ms. Argo was President and Chief Executive Officer of OTLP GP, LLC, the general partner of Oiltanking Partners, L.P. and an affiliate of Enterprise Products Partners L.P. From January 2014 to January 2015, Ms. Argo was Vice President, NGL Fractionation, Storage and Unregulated Pipelines of Enterprise Products Partners L.P. From 2005 to January 2014, Ms. Argo held various positions in the NGL and Natural Gas Processing businesses for Enterprise Products Partners L.P., where her responsibilities included the commercial and financial management of four joint venture companies. Ms. Argo earned an MBA from National University in La Jolla, California and graduated from St. Edward’s University in Austin, Texas with a degree in Accounting. Ms. Argo has over 25 years of experience in the energy industry and continues to maintain various memberships including the National Association of Corporate Directors (NACD).

Cynthia M. Durrett

Chief Administrative Officer and Director

Cindy Durrett serves as Chief Administrative Officer and Director for Solaris Oilfield Infrastructure, Inc. Cindy oversees the company’s information technology, human resources, risk management and administrative functions. Prior to being named Chief Administrative Officer, Cindy was Vice President of Business Operations and was one of the founding leaders of Solaris in 2014. She brings over 30 years of midstream and oilfield services experience to Solaris. Prior to Solaris, she was the Director of Business Planning and Capital Projects for Cadre Proppants and was responsible for developing and leading several growth projects. Prior to Cadre, she served as Managing Director of Dynegy Midstream Services, where she provided leadership to several sectors of the organization including IT, regulated energy delivery, natural gas liquids and midstream. Cindy received a Bachelor of Science in Business Administration from Park University in Kansas City, Missouri, where she graduated with distinction.

Edgar R. Giesinger

Director

Edgar R. Giesinger has served as a member of the Board since May 2017. Mr. Giesinger retired as a managing partner from KPMG LLP in 2015. Since November 2015, Mr. Giesinger has served on the board of directors of Geospace Technologies Corporation, a publicly traded company primarily involved in the design and manufacture of instruments and equipment utilized in oil and gas industries. Mr. Giesinger served on the board of directors of Newfield Exploration Company, a publicly traded crude oil and natural gas exploration and production company, from August 2017 until February 2019 when it was sole to Encana Corporation. He has 35 years of accounting and finance experience working mainly with publicly traded corporations. Over the years, he has advised a number of clients in accounting and financial matters, capital raising, international expansions and in dealings with the SEC. While working with companies in a variety of industries, his primary focus has been energy and manufacturing clients. Mr. Giesinger is a Certified Public Accountant in the State of Texas and member of the American Institute of Public Accountants. He has lectured and led seminars on various topics dealing with financial risks, controls and financial reporting.

W. Howard Keenan, Jr.

Director

W. Howard Keenan, Jr. has served as a member of the Board since May 2017 and served as a manager of our predecessor from November 2014 to May 2017. Mr. Keenan has over 40 years of experience in the financial and energy businesses. Since 1997, he has been a Member of Yorktown Partners LLC, a private investment manager focused on the energy industry. From 1975 to 1997, he was in the Corporate Finance Department of Dillon, Read & Co. Inc. and active in the private equity and energy areas, including the founding of the first Yorktown Partners fund in 1991. Mr. Keenan also serves on the boards of directors of the following public companies: Antero Resources Corporation, Antero Midstream Corporation and Brigham Minerals, Inc. In addition, he is serving or has served as a director of multiple Yorktown Partners portfolio companies. Mr. Keenan holds a Bachelor of Arts degree cum laude from Harvard College and a Master of Business Administration degree from Harvard University.

A. James Teague

Director

A. James Teague has served as a member of the Board since May 2017. Mr. Teague has served as the Chief Executive Officer of Enterprise Products Holdings LLC since January 2016 and has been a Director of Enterprise Products Holdings LLC since July 2008. Mr. Teague previously served as the Chief Operating Officer of Enterprise Products Holdings LLC from November 2010 to December 2015 and served as an Executive Vice President of Enterprise Products Holdings from November 2010 until February 2013. Mr. Teague joined Enterprise in connection with its purchase of certain midstream energy assets from affiliates of Shell Oil Company in 1999. From 1998 to 1999, Mr. Teague served as President of Tejas Natural Gas Liquids, LLC, then an affiliate of Shell. From 1997 to 1998, he was President of Marketing and Trading for MAPCO, Inc. Prior to 1997 he spent 22 years with Dow Chemical in various roles including Vice President, Hydrocarbon Feedstocks.

Ray N. Walker, Jr.

Director

Ray N. Walker, Jr. has served as a member of the Board since August 2018. Mr. Walker has served as the Chief Operating Officer of Encino Energy, a private oil and gas acquisition and development company, since September 2018. Mr. Walker retired as executive vice president and chief operating officer of Range Resources Corporation (“Range Resources”) in April 2018. Range Resources is a publicly traded, independent natural gas, natural gas liquids and oil company engaged in the exploration, development and acquisition of natural gas and crude oil properties. Mr. Walker joined Range Resources in 2006 and was elected to the role of executive vice president and chief operating officer in January 2014. Previously, Mr. Walker served as senior vice president – chief operating officer, senior vice president-environment, safety and regulatory and senior vice president-Marcellus Shale for Range Resources where he led the development of Range Resources’ Marcellus Shale division. Mr. Walker is a petroleum engineer with more than 42 years of oil and gas operations and management experience having previously been employed by Halliburton in various technical and management roles, Union Pacific Resources and several private companies in which Mr. Walker served as an officer. Mr. Walker has a Bachelor of Science degree in Agricultural Engineering with honors from Texas A&M University.

M. Max Yzaguirre

Director

Mr. Max Yzaguirre has served on the Boards of Directors of publicly-listed and privately-held companies, as well as non-profit organizations. Mr. Yzaguirre currently serves on the Board of Directors of WaFD Bank (NASDAQ: WAFD), Altria Group (NYSE: MO) and Aris Water Solutions (NYSE: ARIS).

Mr. Yzaguirre has over 35 years of leadership experience in domestic and international business, government and law, and expertise in a wide variety of industries and sectors, including electricity, oil and gas, banking, real estate, telecommunications and private equity investing. Mr. Yzaguirre led numerous teams that developed projects such as electric power plants, electric transmission lines and pipelines both in the US and internationally. Additionally, Mr. Yzaguirre served as Chairman of the Public Utility Commission (PUC) of Texas from 2001-2002, when the State’s retail electric market was restructured from a regulated model to a competitive model. During Mr. Yzaguirre’s tenure as Chairman of the Texas PUC, he also served on the Board of Directors of the Electric Reliability Council of Texas (ERCOT).