Board of Directors

Brady M. Murphy

President and Chief Executive Officer
Brady M. Murphy has served as our President and Chief Executive Officer since May 2019 and as director since December 2018. From February 2018 to May 2019, he served as our President and Chief Operating Officer.

Prior to joining TETRA, Mr. Murphy served as chief executive officer of Paradigm Group B.V., a private company focused on strategic technologies for the upstream energy industry, from January 2016 until February 2018. Mr. Murphy previously served at Halliburton for 26 years and held numerous international and North America positions, including senior vice president – global business development and marketing, senior vice president – business development Eastern Hemisphere, and senior vice president – Europe/Sub –Saharan Africa region.

Mr. Murphy received his B.S. degree in Chemical Engineering from Pennsylvania State University and is an alumnus of Harvard Business School’s Advanced Management Program.

John F. Glick

Chair of the Board, Member of the Nominating, Governance and Sustainability Committee, ex-officio Member of all other board committees

Mr. Glick has served as a member of our Board since January 2014, as Chair of our Nominating, Governance and Sustainability Committee since May 2015 and has been a member of that committee and our Human Capital Management and Compensation Committee since May 2014. Mr. Glick served as the chief executive officer and a director of Lufkin Industries, Inc., a Public Company, from March 2008 until his retirement in July 2013 and served as Lufkin’s president and a director since August 2007. During his tenure, Mr. Glick oversaw the growth of Lufkin and, ultimately, the sale of the company to General Electric in July 2013. From September 1994 through August 2007, Mr. Glick served as the vice president and general manager of Lufkin’s Power Transmission Division. He served as vice president and general manager of Lufkin’s Oilfield Division from August 2007 through August 2008. Prior to joining Lufkin, from 1974 through 1994, Mr. Glick held several senior management level positions with Cameron Iron Works, Inc. Mr. Glick served as the non-executive chair of the board of directors, chair of the nominating and governance committee, and an ex-officio member of the audit and remuneration committees of Hunting PLC, a public company traded on the London Stock Exchange, from February 2015 to April 2024 when he retired from the board. He also serves as chair of Baylor St. Luke’s Hospital board of trustees and sits on its executive committee. Mr. Glick previously served on the board of Weatherford International plc from December 2019 until June 2020.

Mr. Glick received a B.S. in Journalism from the University of Kansas and graduated from the Harvard Graduate School of Business Program for Management Development.

Mark E. Baldwin

Director
Mr. Baldwin has served as a member of our Board of Directors since January 2014 and as Chair of our Audit Committee since May 2014. Mr. Baldwin served as the executive vice president and chief financial officer of Dresser-Rand Group, Inc., a public company, from August 2007 until his retirement in May 2013. Prior to joining Dresser-Rand, he served as the executive vice president, chief financial officer, and treasurer of Veritas DGC Inc., a public company, from August 2004 through February 2007, and operating partner at First Reserve Corporation from April 2003 through July 2004. Mr. Baldwin served as executive vice president and chief financial officer for NextiraOne from October 2001 through August 2002, and as chair of the board and chief executive officer for Pentacon Inc. from 1997 through 2001. From 1980 through 1997, Mr. Baldwin served in a variety of finance and operations positions with Keystone International Inc., including treasurer, chief financial officer, and president of the Industrial Valves and Controls Group. Mr. Baldwin currently serves as a director and as a member of the audit committee of KBR, Inc. and as a director and as a member of the audit committee of Nine Energy Service, Inc., both of which are public companies. He previously served as a director of Seahawk Drilling Inc. from August 2009 until February 2011.

Mr. Baldwin has a B.S. in Mechanical Engineering from Duke University and an MBA from Tulane University.

Thomas R. Bates, Jr., Ph.D.

Director
Dr. Bates served as a member of our Board of Directors since November 2011, as Chair of our Human Capital Management and Compensation Committee since May 2014, and as a member of that committee since May 2012. Dr. Bates is a private investor and currently an adjunct professor in the Finance Department at Texas Christian University where he teaches in the MBA program at the Neeley School of Business and serves on the board of the Ralph Lowe Energy Institute. Dr. Bates joined Lime Rock Management LP, an energy-focused private equity firm, as a managing director in 2001 and became a senior advisor of the firm in 2010 before retiring in 2013. Dr. Bates had 25 years of experience in oil service management and operations before joining Lime Rock. He served from 1998 through 2000 as president of the Discovery Group of Baker Hughes and was responsible for the integration of Western Atlas into Baker Hughes. Earlier, he served as president and chief executive officer of Weatherford Enterra. Previously, Dr. Bates spent 15 years with Schlumberger in both domestic and international locations and was responsible for the Anadrill business unit when early MWD and LWD tools were commercialized. Dr. Bates began his career with Shell Oil Company, where he conducted drilling research. Dr. Bates has been a personal investor and/or a corporate investor in more than a dozen oil service technology startups. Dr. Bates also serves on the board of directors and as chair of the compensation and leadership development committee and member of the audit committee of SSR Mining, Inc., a Canadian publicly traded company, and as chair of the board of directors and a member of the audit committee of Vantage Drilling International, a public company that trades on the OTC. Dr. Bates previously served on the boards of Independence Contract Drilling, Inc. from August, 2014 through June, 2020, Weatherford International, plc from December 2019 until June 2020, and Tidewater Inc. from July 2017 to October 2019.

Dr. Bates is a graduate of the University of Michigan with a Ph.D. in Mechanical Engineering.

Christian A. Garcia

Director
Mr. Garcia has served as a member of our Board and as a member of its Audit Committee and its Nominating, Governance and Sustainability Committee since May 2023. From October 2020 to May 2023, Mr. Garcia served as executive vice president and chief financial officer at BrandSafway, a provider of industrial services solutions to commercial, industrial, and infrastructure markets. Prior to joining BrandSafway, from January 2020 to August 2020, Mr. Garcia served as the executive vice president and chief financial officer of Weatherford International, a publicly-listed oil services company. Prior to joining Weatherford, from October 2016 to October 2019, he served as executive vice president and chief financial officer of Visteon Corporation, a publicly-listed provider of automotive cockpit electronics. Previously, Mr. Garcia served as acting chief financial officer of Halliburton Company, a publicly-listed energy company, where he progressed through a variety of leadership positions including chief accounting officer, treasurer and senior vice president of investor relations. For the periods August 2020 to October 2020 and October 2019 to January 2020, Mr. Garcia was self-employed. Mr. Garcia currently serves as a director and as chair of the audit committee of Bausch Health Companies, a publicly-listed global pharmaceutical products company. From May 2017 to October 2019, he served as a board director and chair of the audit committee of Keane Group, Inc., a publicly-listed provider of integrated well completions.

Mr. Garcia received his Bachelor of Science from the University of the Philippines and his master’s degree in business from Purdue University Krannert School of Management.

Angela D. John

Director
Ms. John has served as a member of our Board of Directors and as a member of our Audit Committee and our Nominating, Governance and Sustainability Committee since March 2024. Since October 2020, Ms. John has been providing advisory services in the energy industry, primarily focused on clean energy business development and commercialization strategies. Ms. John was the director of innovation and strategy for New Energy Ventures with The Williams Companies, Inc. (NYSE: WMB), a public company, from January 2021 to September 2022. Prior to that Ms. John held a number of leadership roles within BP p.l.c. (LSE: BP) (NYSE: BP), a public company, over a 27-year period, including vice president, marketing and supply, NGLs, from 2009 to 2011, senior vice president marketing and origination, from 2011 to 2017, and most recently, from 2017 to September 2020, as director of structured products where she focused on renewable fuels development. Ms. John has served on the board of Parkland Corporation (TSX: PKI) since August 2021 and serves on its environmental, safety, and sustainability committee and its human resources and compensation committee.

Ms. John earned a Master of Business Administration from Northwestern University’s Kellogg School of Management, and a Bachelor of Science in Chemical Engineering from the University of Houston. Ms. John has also earned an NACD Directorship Certification through the NACD Directorship Certification program and is in the process of completing certification requirements for the NACD CERT Certificate in Cyber-Risk Oversight.

Sharon Booth McGee

Director
Ms. McGee has served as a member of our Board of Directors and as a member of our Human Capital Management and Compensation Committee and our Nominating, Governance and Sustainability Committee since February 2022. She has served as Chair of our Nominating, Governance and Sustainability Committee since May 2024.

Ms. McGee founded SDBM Executive and Strategic Advisory, LLC in May, 2021, an independent advisory service to the new energy, chemicals, materials, mining, and oil and gas industries. Prior to that, Ms. McGee served at Albemarle Corporation for 33 years, holding several senior management level positions, most recently as Vice President, Investor Relations & Corporate Development from 2016 through January, 2021, Vice President, Asia Pacific Region and Global Fire Safety Sales from 2014-2016, Vice President, Sales – Americas from 2013-2014, Division Vice President, Performance Chemicals from 2008-2013, and Global Business Director, Industrial Bromides from 2005-2008. Albemarle is one of the largest global producers of lithium and lithium derivatives, and bromine and bromine derivatives, of which Ms. McGee participated in many of those strategic discussions.

Ms. McGee earned an Executive MBA Certificate from Louisiana State University and MS and BS degrees in Chemical Engineering from the University of Arkansas and earned an NACD Directorship Certification through the NACD Directorship Certification program. NACD Directorship Certified directors establish themselves as committed to continuing education on emerging issues and to helping to elevate the profession of directorship.

Shawn D. Williams

Director
Mr. Williams has served as a member of our Board since March 2021 and as a member of its Audit Committee and Human Capital Management and Compensation Committee since April 2021. Most recently, Mr. Williams served as the Chief Executive Officer of Nexeo Plastics Holdings, Inc., a global plastics distributor, from April 2019 until June of 2020 and from September 2012 to March of 2019 as Executive Vice President of Nexeo Solutions, Inc. Mr. Williams has been retired since June 2020. Prior to joining Nexeo Solutions, from 2007 to 2012 Mr. Williams served as President of Momentive Global Sealants, a global specialty sealants business, and President of Momentive Performance Materials, a silicone specialty materials business. Earlier in his career, Mr. Williams spent 22 years serving in industrial and material business leadership roles at General Electric Company and led businesses globally in the Americas, Europe, and Asia across a broad sector of markets. Since January 1, 2022, Mr. Williams has served as the executive chair of the board of managers of Covia Holdings, LLC, a provider of minerals-based solutions serving the industrial and energy markets, has served as a member of its audit committee and compensation committee since December 2020, and served as chair of the board of managers from December 2020 to December 2021. He served as interim chief executive officer at Covia Holdings from June to December 2020. Mr. Williams has also served on the board of directors of Kirby Corporation, a Public Company, since July 2021 and as a member of its ESG and nominating committee since January 2022 and on the board of directors of Marathon Oil Corporation, a Public Company, since February 2023 and as a member of its audit and finance committee and its corporate governance and nominating committee.

Mr. Williams earned his M.B.A. from the Haas School of Business at the University of California, Berkeley, and a B.S. in electrical engineering from Purdue University.