Styrelsen

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.

Innan han började på TETRA var Murphy verkställande direktör för Paradigm Group B.V., ett privat företag som fokuserar på strategisk teknik för energibranschen i tidigare led, från januari 2016 till februari 2018. Murphy var tidigare anställd på Halliburton i 26 år och innehade ett flertal internationella och nordamerikanska positioner, inklusive senior vice president - global affärsutveckling och marknadsföring, senior vice direktör - affärsutveckling östra halvklotet och senior vice direktör- region Europa/Subsahariska Afrika.

Murphy har en kandidatexamen i kemiteknik från Pennsylvania State University och har genomgått Harvard Business Schools Advanced Management Program.

John F. Glick

Styrelseordförande, ex-officio ledamot i samtliga styrelsekommittéer

John F. Glick har varit ledamot av vår styrelse sedan januari 2014 och styrelseordförande sedan maj 2022. Han har också varit ledamot av vår kommitté för nominering, bolagsstyrning och hållbarhet från maj 2014 till maj 2022, inklusive ordförande i kommittén från maj 2015 till maj 2022, samt ledamot av Human Capital Management and Compensation Committee från maj 2014 till maj 2022. Glick var verkställande direktör och styrelseledamot i Lufkin Industries, Inc, ett publikt bolag, från mars 2008 till sin pensionering i juli 2013 och var Lufkins VD och styrelseledamot sedan augusti 2007. Under sin tid som VD övervakade Glick Lufkins tillväxt och slutligen försäljningen av bolaget till General Electric i juli 2013. Från september 1994 till augusti 2007 var Glick Vice President och General Manager för Lufkins Power Transmission Division. Han var vice VD och chef för Lufkins Oilfield Division från augusti 2007 till augusti 2008. Innan Glick kom till Lufkin, 1974-1994, hade han flera ledande befattningar inom Cameron Iron Works, Inc. Glick är för närvarande ordförande i styrelsen för Baylor St. Luke's Medical Center och sitter i dess verkställande utskott. Från februari 2015 till april 2024 var han non-executive styrelseordförande, ordförande i nominerings- och bolagsstyrningskommittén samt ex-officio ledamot i revisions- och ersättningskommittéerna i Hunting PLC (HTG.L), ett publikt bolag som handlas på Londonbörsen. Glick har tidigare varit styrelseledamot i Weatherford International plc från december 2019 till juni 2020.

Glick fick en kandidatexamen i journalistik från University of Kansas och tog examen från Harvard Graduate School of Business Program for Management Development.

Thomas R. Bates, Jr, Ph.D.

Director

Thomas R. Bates, Jr. served as a member of our Board of Directors since November 2011, as Chairman 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. He also teaches Geopolitics and Energy in the Master of Supply Chain program and Corporate Finance and Valuation in the Master of Strategic Management Consulting program at SKEMA Business School in France. 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 chairman of the compensation and leadership development committee and member of the audit committee of SSR Mining, Inc. (SSRM), a Canadian publicly traded company, and as chairman of the board of directors and a member of the audit committee of Vantage Drilling International (VTI), a public company that trades on the EuroNext Growth Exchange in Oslo. 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.

Bates är utbildad vid University of Michigan och har en doktorsexamen i maskinteknik.

Christian A. Garcia

Director

Christian A. Garcia has served as a member of our Board of Directors and as a member of the Audit Committee and the Nominating, Governance and Sustainability Committee since 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 from October 2020 to May 2023. 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, and serves as a director and as a member of the audit committee of Mueller Water Products, Inc. Mr. Garcia previously served as a board director of Dana Inc. from January 2025 to June 2025 and Keane Group, Inc. from May 2017 to October 2019.

Garcia har en kandidatexamen i naturvetenskap från University of the Philippines och en masterexamen i företagsekonomi från 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.

John har en Master i företagsekonomi från Northwestern University's Kellogg School of Management och en kandidatexamen i naturvetenskap i kemiteknink från University of Houston. John har också erhållit en NACD Directorship Certification genom NACD Directorship Certification program och håller på att slutföra certifieringskraven för NACD CERT Certificate in Cyber-Risk Oversight.

Sharon Booth McGee

Director

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

McGee grundade SDBM Executive and Strategic Advisory, LLC ("SDBM") i maj 2021, en oberoende rådgivningsbyrå inom ny energi, kemikalier, material, gruvdrift samt olje- och gasindustrin. Dessförinnan arbetade McGee på Albemarle Corporation i 33 år och hade flera ledande befattningar, senast som vice president för investerarrelationer och företagsutveckling från 2016 till januari 2021, vice president, Asia Pacific region and global fire safety sales från 2014-2016, vice president, sales - Americas från 2013-2014, division vice president, performance chemicals från 2008-2013 och global business director, industrial bromides från 2005-2008. Albemarle är en av de största globala producenterna av litium och litiumderivat samt brom och bromderivat, där McGee deltog i många av de strategiska diskussionerna.

McGee har ett Executive MBA Certificate från Louisiana State University och MS- och BS-examen i kemiteknik från University of Arkansas. Hon har också en NACD Directorship Certification genom NACD Directorship Certification-programmet och ett NACD CERT Certificate in Cyber Security Risk Oversight.

Julie A. Sloat

Director

Julie Sloat has served as a member of our Board of Directors and as a member of its Audit Committee and Nominating, Governance and Sustainability Committee since June 2025. Ms. Sloat most recently served as chairman of the board, president, and chief executive officer of American Electric Power (NASDAQ: AEP), an electric energy company with the nation’s largest electric transmission network, from October 2023 until February 2024, subsequent to assuming the president’s role in September 2022 and serving as the president and chief executive officer from January 2023 through September 2024. She led the company’s energy transition, expanding its renewable energy generation portfolio and its development of new offerings. Ms. Sloat has been retired since February 2024 and brings over 23 years of experience at American Electric Power where she also served as chief financial officer and senior vice president -treasury and risk, from January 2019 to December 2020 and from January 2013 to April 2016, leading multiple finance teams including investor relations. Additionally, she served as president and chief operating officer of AEP Ohio, a subsidiary of American Electric Power serving 1.5 million customers. Ms. Sloat currently serves as a director and as a member of the ESG and risk committee of Jacobs Solutions, Inc. (NYSE: J), a company that provides end-to-end services in advanced manufacturing, cities and places, energy, environmental, life sciences, transportation and water. Ms. Sloat formerly served on the board of Evoqua Water Technologies Corporation (NYSE: AQUA) from May 2022 until May 2023 when it was acquired by Xylem Inc. and as a member of the board of directors of Park National Corporation (NYSE: PRK) from 2015 to 2021.

Sloat har en Bachelor of Science i finans och ekonomi och en Master of Business Administration från Ohio State University.

Shawn D. Williams

Director

Mr. Williams has served as a member of our Board of Directors since March 2021 and as a member of our 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 chairman 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 chairman of the board of managers from December 2020 to December 2021. He served as interim chief executive officer of Covia Holdings from June to December 2020. Mr. Williams has also served on the board of directors of Kirby Corporation (KEX), a Public Company, since July 2021 and as a member of its ESG and nominating committee since January 2022. He previously served on the board of directors and as a member of the audit and finance committee and the corporate governance and nominating committee of Marathon Oil Corporation (MRO), a Public Company, from February 2023 to November 2024 when it was acquired by ConocoPhillips.

Williams har en M.B.A. från Haas School of Business vid University of California, Berkeley, och en B.S. i elektroteknik från Purdue University. Williams har också erhållit ett NACD CERT-certifikat i Cyber Risk Oversight.