Board of Directors

William A. Zartler has served as the Founder and Executive Chairman of the Company since September 2021 and was the Chairman and Chief Executive Officer of our predecessor from 2015 to September 2021. Mr. Zartler also currently serves as Chairman and Chief Executive Officer of Solaris Oilfield Infrastructure, Inc. (NYSE:SOI), serving as its Chairman since 2014 and its Chief Executive Officer since July 2018 as well as from 2014 through its initial public offering in May 2017. Mr. Zartler brings over 30 years of experience to Aris, with an extensive background in both energy investing and managing growth businesses. Prior to founding Aris and Solaris Oilfield Infrastructure, Inc., Mr. Zartler was a Founder and Managing Partner of Denham Capital Management (“Denham”), 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, Mr. Zartler served on the boards of numerous portfolio companies. Prior to joining Denham, Mr. Zartler was Senior Vice President and General Manager at Dynegy (formerly known as NGC Corporation) and an Olefin Feedstock Manager at the Dow Chemical Company. Mr. Zartler received a Bachelor of Science in Mechanical Engineering from The University of Texas at Austin and is a member of the Walker School of Mechanical Engineering Academy of Distinguished Alumni at The University of Texas. Mr. Zartler also received a Master of Business Administration from Texas A&M University. He 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 the Board of Directors of the Texas Business Hall of Fame Foundation.

Amanda M. Brock has served as the President and Chief Executive Officer of the Company since September 2021. Ms. Brock joined our predecessor in 2017 as the Senior Commercial Advisor and assumed the President and Chief Operating Officer positions in September 2020 and July 2018, respectively. Ms. Brock also served as Chief Commercial Officer of our predecessor from February 2018 to September 2020. Ms. Brock has also served as a Director of our predecessor since December 2020. Ms. Brock has spent her career focused in the global water, power and energy sectors. Before joining our predecessor, Ms. Brock was Chief Executive Officer of Water Standard, a water treatment company focused on desalination and produced water treatment and recycling in both the upstream and downstream energy industry, from 2009 to 2017. Previously, Ms. Brock was President of the Americas for Azurix and was responsible for developing water infrastructure and services in the Americas. Ms. Brock has served on the board of Coterra Energy Inc. (NYSE:CTRA) (formerly Cabot Oil & Gas Corporation) since 2017.  Ms. Brock served on the board of Macquarie Infrastructure Holdings, LLC (NYSE:MIC) (formerly Macquarie Infrastructure Corporation) from August 2018 until June 2022. Ms. Brock is also the past chair of the Texas Business Hall of Fame. She previously served on the Board of Trustees of LSU Law School and the Texas Water Commission. She completed her undergraduate degree in South Africa and earned her law degree at Louisiana State University, where she was a member of the Law Review, and began her career as a lawyer at Vinson & Elkins LLP. Ms. Brock was previously named one of the Top 10 Women in Energy by the Houston Chronicle and in 2016, one of the Top 25 in water globally by Water and Wastewater International. In 2020, Ms. Brock was named one of the Top 25 Influential Women in Energy by Hart Magazine.

Joseph Colonnetta has served as a director of our predecessor since December 2016, has been our Lead Independent Director since October 2021 and is a partner with HBC Investments. Mr. Colonnetta has over 30 years of experience in the private equity industry as both an operator and investor. Since 2011, he has served as the Founding and General Partner of HBC Investments, which specializes in middle market private equity investments. Beginning in 2012, Mr. Colonnetta served for eight years as a Trustee on the Teachers’ Retirement System of Texas (Texas Teachers’ Board). Mr. Colonnetta also served as the Chairman of the prominent Investment Committee of the Texas Teachers’ Board. Mr. Colonnetta has served as a Director and Chairman on numerous private and public company boards. Currently, he serves on the boards of ROC Energy Acquisition Corp. (Nasdaq: ROC), Getka Energy and Storage, and Thunderbird LNG (a partner with Kinder Morgan in Gulf LNG). He also is a Trustee of St. Michael’s Episcopal Foundation. Mr. Colonnetta graduated from the University of Houston in 1985.

Debra G. Coy is a Principal of Svanda & Coy Consulting and an advisor to XPV Water Partners, a growth equity fund, where she served as Partner from February 2015 through February 2020. Ms. Coy currently serves as a director of Global Water Resources, Inc. (Nasdaq: GWRS), where she is a member of the Audit Committee and chairs the Corporate Governance, Nominating, Environmental, and Health and Safety Committee. She is also a director of Axius Water Holdings, a privately held company, and Water for People, a global non-profit. Ms. Coy was a director for Willdan Group, Inc. from March 2018 until June 2022 and AquaVenture Holdings from February 2019 until the company was acquired in March 2020. Previously, Ms. Coy worked on Wall Street as an equity research analyst for more than 20 years. She lead coverage of the water sector for Janney Montgomery Scott’s Capital Markets group as Managing Director, and also held senior equity research roles with the Stanford Washington Research Group, Schwab Capital Markets, HSBC Securities and National Westminster Bank. Ms. Coy obtained a Bachelor of Arts degree from the Southern Adventist University in 1979 and a Master of Arts degree from the University of Maryland in 1986.

Mr. Hernandez joined the Company’s Board of Directors after a lengthy career with Capital Group and its subsidiary, Capital World Investors. He joined the Capital Group companies in August 2000 and retired in June 2022 after having spent 22 years covering a variety of industries, including the oil and gas industry, helping lead the research portfolio for one of the largest growth mutual funds in the world and serving in key leadership roles. He is currently a member of the board of directors of Altria Group, Inc. Mr. Hernandez earned his Bachelor of Science in Economics from Stanford University, with a minor in Political Science.

Howard Keenan, Jr. has served as a director of our predecessor since September 2016. Mr. Keenan has over 40 years of experience in the financial and energy businesses and has been a Member of Yorktown Partners LLC, a private investment manager focused on the energy industry, since its inception in 1997. From 1975 to 1997, he was in the Corporate Finance Department of the investment bank 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 (NYSE: AR), Antero Midstream Corporation (NYSE: AM) and Solaris Oilfield Infrastructure, Inc. (NYSE: SOI). In addition, he is serving or has served as a director of multiple Yorktown Partners portfolio companies. Mr. Keenan obtained an AB from Harvard University in 1973 and an MBA from Harvard Business School in 1975.

Andrew O’Brien has served as a director of our predecessor since June 2021. He currently serves as Senior Vice President, Global Operations of ConocoPhillips. Mr. O’Brien has more than 25 years of experience in the oil and gas industry. He has served in a variety of finance, strategy and economist roles in the U.K., Canada, Alaska, Indonesia, and Houston. Mr. O’Brien’s prior leadership roles include Vice President and Treasurer; Vice President, Corporate Planning and Development; Manager, Lower 48 Finance; Manager, Investor Relations; Manager, Strategy and Portfolio Management; and Vice President, Finance and IT for ConocoPhillips Indonesia. He began his career with ConocoPhillips in 1997 as a financial analyst in Warwick, England. Mr. O’Brien was appointed to his current role in May 2021. Mr. O’Brien currently serves on the board of directors of Oil Casualty Investment Corporation. Mr. O’Brien is a chartered management accountant and graduated from the University of Plymouth in 1996 with a bachelor’s degree in business administration.

Donald C. Templin currently serves as Executive Vice President and Chief Financial Officer of Voya Financial, Inc. (NYSE: VOYA). Prior to Voya, Mr. Templin served as Executive Vice President and Chief Financial Officer of Marathon Petroleum Corporation (NYSE: MPC) (“Marathon”) from July 2019 to January 2021, and also served as President of Marathon from July 2017 to June 2019. Mr. Templin also served as the President of MPLX, LP, which is Marathon’s public midstream subsidiary, from January 2016 to June 2017. Mr. Templin joined Marathon in June 2011 and other positions he held at Marathon include Executive Vice President—Supply, Transportation and Marketing and Senior Vice President and Chief Financial Officer. Prior to joining Marathon, Mr. Templin served as a Partner at PricewaterhouseCoopers. Mr. Templin currently serves on the board of One Energy and is a member of One Energy’s audit committee. Mr. Templin previously served on the boards of MPLX, LP from 2012 to 2021 and Calgon Carbon Corporation (“Calgon Carbon”) from 2013 to 2018 and served as a member of Calgon Carbon’s audit committee. Mr. Templin graduated from Grove City College in 1984 with a Bachelor of Arts degree in accounting.

Max Yzaguirre currently serves on the board of Altria Group (NYSE:MO) and is a member of their Finance Committee and their Innovation Committee. He also serves on the board of directors of Luther Burbank Corporation (Nasdaq: LBC) and is a member of Luther Burbank’s Audit & Risk and Compensation Committees. Mr. Yzaguirre formerly served on the Boards of Directors of BBVA USA Bancshares and BBVA USA Bank from 2009 until June 2021. From May 2017 through February 2021, Mr. Yzaguirre also served first as Chairman and CEO of the Forbes Bros. U.S. operation and ultimately as the Executive Chairman of Forbes Bros. Holdings. Mr. Yzaguirre also served as the Chairman of the Public Utility Commission of Texas from 2001 to 2002 and was a member of the board of directors of Texas Regional Bancshares, Inc. (Nasdaq: TRBS) from 2000 until 2006. 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 obtained a Bachelor of Business Administration degree from University of Texas at Austin in 1983 and a Juris Doctor degree from the University of Texas School of Law in 1986.