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Mr. William A. Zartler is our Chairman and has served as a member of the Board since February 2017 and a manager of our predecessor since October 2014. Mr. Zartler was appointed Chief Executive Officer by the Board in July 2018 and has served as our Co-Chief Executive Officer since October 2025. Mr. Zartler founded Loadcraft Site Services, LLC and served as its Executive Chairman from February 2014 to September 2014. Mr. Zartler served as our predecessor's Chief Executive Officer and Chairman from October 2014 through our initial public offering in May 2017 (the IPO). Mr. Zartler also served as Executive Chairman of Aris Water Solutions, Inc. (formerly NYSE: ARIS) (Aris) from the company's initial public offering in October 2021 until its acquisition by Western Midstream Partners, LP (NYSE: WES) in October 2025. Mr. Zartler previously served as Chairman and Chief Executive Officer of the predecessor to Aris from its inception in 2014 through its initial public offering in October 2021. Mr. Zartler has extensive experience in both energy industry investing and managing growth businesses. Prior to founding our predecessor, in January 2013, Mr. Zartler founded Solaris Energy Capital, LLC, a private investment firm focused on investing in and managing emerging, high growth potential businesses primarily in midstream energy and oilfield services, including Solaris LLC, and Mr. Zartler continues to serve as the sole member and a manager of Solaris Energy Capital, LLC, a related party of the Company. Prior to founding Solaris Energy Capital, LLC, Mr. Zartler was a founder and Managing Partner of Denham Capital Management (Denham), a $7 billion global energy and commodities private equity firm, from its inception in 2004 to January 2013. Mr. Zartler led Denham's global investing activity in the midstream and oilfield services sectors and served on the firm's Investment and Executive Committees. Previously, Mr. Zartler held the role of Senior Vice President and General Manager at Dynegy Inc., building and managing the natural gas liquids business. Mr. Zartler also served as a director of the general partner of NGL Partners LP (NYSE: NGL) from its inception in September 2012 to August 2013. Mr. Zartler began his career at Dow Hydrocarbons and Resources. Mr. Zartler received 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. Mr. Zartler serves on the Engineering Advisory Board of the Cockrell School of Engineering at the University of Texas at Austin.

Ms. Amanda M. Brock has served as our Co-Chief Executive Officer and a member of the Board since October 2025. Prior to joining the Company, Ms. Brock served as President and Chief Executive Officer of Aris from September 2021 until October 2025. Ms. Brock joined Aris's 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 Aris's predecessor from February 2018 to September 2020. Ms. Brock served as a Director of Aris from December 2020 until October 2025. Ms. Brock has spent her career focused on the global water, power and energy sectors. Before joining Aris's 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 (formerly Macquarie Infrastructure Corporation) (formerly NYSE: MIC) from August 2018 until June 2022. Ms. Brock is also on the Executive Committee and is the 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, and in February 2026, Ms. Brock was named a founding member of the NYSE Texas Advisory Board.

Ms. Cynthia M Durrett has served as a member of the Board since March 2019 and as our Chief Administrative Officer since March 2017. Ms. Durrett was previously our Vice President of Business Operations from October 2014 to February 2017 and the Vice President of Business Operations of Solaris Energy Capital, LLC, a related party of the Company, from October 2013 to September 2014. From July 2013 to September 2013, Ms. Durrett served as an independent consultant in the proppant industry. From 2007 to June 2013, Ms. Durrett was the Director of Business Planning and Capital Projects for Cadre Proppants. Ms. Durrett previously served as Managing Director of Dynegy Midstream Services, where she provided leadership to several sectors of the organization including information technology, regulated energy delivery, natural gas liquids and midstream. Ms. Durrett began her career at Ferrell North America, where she managed operations for the energy commodities trading business, including natural gas liquids and refined products. Ms. Durrett received a Bachelor of Science in Business Administration from Park University in Kansas City, Missouri, where she graduated with distinction.

Mr. Christopher M. Powell was named our Chief Legal Officer and Corporate Secretary in August 2017. From 2009 to August 2017, Mr. Powell served in various roles of responsibility, including Vice President, General Counsel, Corporate Secretary and Chief Compliance Officer for CARBO Ceramics Inc., a leading technology and services company providing products and services to the global oil and gas and industrial markets. Prior thereto, Mr. Powell served in various legal roles at Baker Hughes Incorporated. Mr. Powell began his career with the international law firm of Norton Rose Fulbright (formerly Fulbright & Jaworski L.L.P.). Mr. Powell obtained his Doctor of Jurisprudence from the University of Houston Law Center, where he graduated magna cum laude. Mr. Powell received a Bachelor of Business Administration in Accounting from Texas A&M University, where he graduated cum laude and was selected as a member of the Mays Business School Fellows Program. Mr. Powell was also a licensed Certified Public Accountant and worked as an auditor with Arthur Andersen LLP prior to obtaining his law degree.

Mr. Christopher P. Wirtz was named our Chief Accounting Officer in June 2023. Prior to joining Solaris, Mr. Wirtz served as the Controller, Proppant Segment for ProFrac Holding Corp. (NASDAQ: ACDC) (ProFrac) from December 2022 to May 2023, which in that time, the Proppant Segment grew from two sand mines to eight, largely through acquisitions. Mr. Wirtz joined ProFrac following ProFrac's acquisition of U.S. Well Services, Inc. (U.S. Wells Services), a provider of high-pressure, hydraulic fracturing services in U.S. unconventional oil and natural gas basins, in November 2022. Mr. Wirtz served as U.S. Well Services' VP Internal Audit and Process Control from September 2021 to November 2022, in addition to serving as the Corporate Controller from December 2018 to October 2020, Principal Accounting Officer from March 2019 to November 2020 and prior to U.S. Well Services' business combination, as Controller of U.S. Well Services, LLC from April 2017 to November 2018. Additionally, Mr. Wirtz served as the Chief Financial Officer for ADS Services, LLC (ADS Services), a privately held managed pressure drilling company, from November 2020 until September 2021. Prior to joining U.S. Well Services, LLC, Mr. Wirtz held management and senior level positions at Superior Energy Services, Inc., BJ Services Company, Ernst & Young LLP and Broussard, Poche, Lewis and Breaux. Mr. Wirtz's over 20 years of accounting experience spans both public and private companies within the energy industry. Mr. Wirtz obtained his Bachelor of Business Administration degree in Accounting from the University of Louisiana at Lafayette and is a Certified Public Accountant.

Mr. M. Max Yzaguirre has served as a member of our Board since January 2025 and currently serves as a member of our Audit Committee. Mr. Yzaguirre has over 40 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 previously served as an Executive Chairman of Forbes Bros. Holdings, Ltd. (Forbes) from June 2019 to February 2021 and as Chairman of Forbes and Chief Executive Officer of Forbes Bros. USA, Inc. from May 2017 to June 2019. Prior to joining Forbes, Mr. Yzaguirre served as the Chief Executive Officer of the Yzaguirre Group, LLC from June 2006 to June 2017. Mr. Yzaguirre currently serves as a member of the board and as a member of the Finance, Innovation, Audit and Compensation & Talent Development Committees of Altria Group, Inc. (NYSE: MO) since May 2022 and as a member of the board and as a member of the Risk and Compensation Committees of WaFd, Inc. (NASDAQ: WAFD) and WaFd Bank since February 2024. Mr. Yzaguirre has also previously served on the boards of Aris Water Solutions, Inc. (formerly NYSE: ARIS) from October 2021 until its acquisition by Western Midstream Partners, LP (NYSE: WES) in October 2025, Luther Burbank Corporation and Luther Burbank Savings (an FDIC insured, California-chartered bank) from October 2021 to February 2024 and BBVA USA Bancshares, Inc. and BBVA USA Bank from June 2009 until June 2021, where he served in various roles including, as a board member, Chairman of the Risk Committee, Audit & Compliance Committee and Compensation Committee and member of the Executive Committee. Mr. Yzaguirre has also previously served as Chairman of the Public Utility Commission of Texas, on the Board of Directors of ERCOT, on the Board of Directors of the Texas Business Hall of Fame Foundation (including serving as its Chairman), and on the Board of Directors of the Texas Wildlife Association. He obtained a Bachelor of Business Administration degree from the University of Texas at Austin in 1983 and a Juris Doctorate degree with Honors from the University of Texas School of Law in 1986.

Ms. Laurie H. Argo has served as a member of the Board since March 2022 and currently serves as a member of our Audit and Compensation Committees and as Chairperson of our Nominating and Governance Committee. Since March 2023, Ms. Argo has served on the board of directors of Viper Energy, Inc. (Nasdaq: VNOM) (Viper) (prior to Viper's conversion from a limited partnership to a corporation, Ms. Argo served on the board of the general partner). Previously, Ms. Argo served on the board of the general partner, where she is currently a member of the Compensation Committee and Chair of the Nominating and Corporate Governance Committee of Rattler Midstream LP (formerly Nasdaq: RTLR) (Rattler) where she served as a member on both the Audit and Conflicts Committees, from May 2019 until August 2023, at which time Rattler was acquired by Diamondback Energy, Inc. (Nasdaq: FANG). 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 both its Audit and Remuneration 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. (NYSE: EPD) (Enterprise LP), a midstream natural gas and crude oil pipeline company. From October 2014 to February 2015, Ms. Argo served as President and Chief Executive Officer of OTLP GP, LLC, the general partner of Oiltanking Partners, L.P., an affiliate of Enterprise LP. From January 2014 to January 2015, Ms. Argo was Vice President, NGL Fractionation, Storage and Unregulated Pipelines of Enterprise LP. From 2005 to January 2014, Ms. Argo held various positions in the NGL and Natural Gas Processing businesses for Enterprise LP, where her responsibilities included the commercial and financial management of four joint venture companies. From 2001 to 2004, Ms. Argo worked for San Diego Gas and Electric Company in San Diego, California. From 1997 to 2000, Ms. Argo worked for PG&E Gas Transmission, a subsidiary of PG&E Corporation (NYSE: PCG), in Houston, Texas. Ms. Argo earned a Master of Business Administration 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 maintains multiple organizational memberships, including the National Association of Corporate Directors.

Mr. Ray N. Walker,Jr has served as a member of the Board since August 2018 and currently serves as Chairman of our Compensation Committee . Mr. Walker served as the Chief Operating Officer of Encino Energy, a private oil and gas acquisition and development company, from September 2018 until its acquisition by EOG Resources Inc. (NYSE: EOG) in August 2025. Mr. Walker retired as Executive Vice President and Chief Operating Officer of Range Resources Corporation (NYSE: RRC) (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 currently serves on the board of directors of MPLX LP (NYSE: MPLX), a publicly traded, diversified, large-cap master limited partnership that owns and operates midstream energy infrastructure and logistics assets and provides fuels distribution services. Since March 2026, Mr. Walker has served on the board of directors of Presidio Production Company (NYSE: FTW), the combined company formed by Presidio Petroleum and EQV Ventures Acquisition Corp. focused on the acquisition and optimization of producing oil and gas assets without drilling. Mr. Walker is a petroleum engineer with more than 45 years of oil and gas operations and management experience having previously been employed by Halliburton Company (NYSE: HAL) 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.

Mr. James R. Burke has served as a member of the Board since May 2017 and currently serves as a member of our Nominating and Governance Committee. Mr. Burke also served as a manager of our predecessor from October 2014 to May 2017. From July 2013 to 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.

Mr. A. James Teague has served as a member of the Board since May 2017 and currently serves as a member of our Compensation Committee. Mr. Teague has served as the Co-Chief Executive Officer of Enterprise Products Holdings LLC (Enterprise) since January 2020, has been a Director of Enterprise since July 2008 and has served as Co-Chairman of the Capital Projects Committee of Enterprise since November 2016. Mr. Teague previously served as the Chief Executive Officer of Enterprise from January 2016 to January 2020, as the Chief Operating Officer of Enterprise from November 2010 to December 2015 and as an Executive Vice President of Enterprise 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 Inc. (NYSE: DOW) in various roles including Vice President, Hydrocarbon Feedstocks.

Mr. 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 45 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 (NYSE: AR) and Antero Midstream Corporation (NYSE: AM). Mr. Keenan also served on the board of directors of Aris from October 2021 until October 2025. In addition, he is currently serving, and has previously 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.

On February 12, 2026 the Board of Directors of the Company appointed Stephan E. Tompsett as Chief Financial Officer of the Company. Prior to joining the Company, Mr. Tompsett served as the Chief Financial Officer of Aris Water Solutions, Inc. (formerly NYSE: ARIS) from September 2022 until October 2025. From May 2021 until May 2022, Mr. Tompsett served as Chief Financial Officer of Limetree Bay Energy, a large-scale refinery, terminal and logistics hub located in the U.S. Virgin Islands. During his tenure at Limetree Bay Energy, Mr. Tompsett was a member of the turnaround management team responsible for leading the financial restructuring and eventual Chapter 11 bankruptcy filing and sale of Limetree Bay Refining, and the separation and recapitalization of Limetree Bay Terminals. Prior to this, Mr. Tompsett served as the Chief Financial Officer and Treasurer of EagleClaw Midstream Ventures, LLC, a Blackstone portfolio company engaged in natural gas gathering, transportation, and processing in the Delaware Basin from March 2019 to April 2021. Mr. Tompsett served as Vice President and Treasurer of Andeavor (formerly Tesoro Corporation), a Fortune 500 independent refining, marketing and logistics company from September 2016 to October 2018. He began his career at JPMorgan as an investment banker. Mr. Tompsett holds a Master of Business Administration degree from the Red McCombs School of Business at the University of Texas at Austin, and a Bachelor of Science degree in Biology and Mathematics from the University of Texas at Austin.