ProPetro Appoints Alex Volkov to Board of Directors

ProPetro Holding Corp. (“ProPetro” or the “Company”) (NYSE: PUMP) today announced that, effective May 8, 2024, Alex Volkov has been appointed to its Board of Directors (the “Board”) as ExxonMobil's designee pursuant to the Investor Rights Agreement (the “Investor Rights Agreement”), dated as of December 31, 2018, by and between the Company and Pioneer Natural Resources Pumping Services LLC, a Delaware limited liability company (“Pioneer”), and a wholly owned subsidiary of Exxon Mobil Corporation (“ExxonMobil”).

Mr. Volkov is currently the Transition Executive responsible for planning the integration of Pioneer Natural Resources Company with ExxonMobil's Unconventional business. Additionally, Mark Berg, who has served as a director on the Board since February 2019 and was previously appointed as Pioneer's designee, will remain on the Board as an independent director.

ProPetro’s Chief Executive Officer, Sam Sledge, commented, “We extend a warm welcome to Alex who is bringing with him a wealth of experience from ExxonMobil. His proven leadership and industry acumen will be invaluable as we continue to execute on our strategy and deliver value to all our stakeholders. We are also delighted to retain Mark Berg as an independent director given his unique experience and qualifications. We have benefitted greatly from Mark's deep experience over the past five years and look forward to his continued contributions.”

Phillip Gobe, Chairman of the ProPetro Board, said, “It is with great pleasure that we welcome Alex to our Board. His understanding of global energy dynamics will enrich our discussions and help inform our decisions. We look forward to leveraging Alex's strategic insights and leadership as we work for ProPetro's continued success. We are also excited that Mark Berg will remain on the Board as an independent director. Mark is a valuable member of our Board, and I want to thank him for his continued service to ProPetro.”

About Alex Volkov

Alex Volkov is a seasoned executive with almost three decades of experience in various roles within ExxonMobil. Beginning his journey with the company in 1997, Mr. Volkov has navigated through diverse assignments spanning marketing, business development, supply chain logistics, and strategy development. His international experience includes serving as Vice President of Exxon Neftegas Limited in Moscow, overseeing commercial activities in Russia, and later moving to the United Kingdom to lead international natural gas marketing and trading efforts. In 2019, Mr. Volkov transitioned to Houston as Vice President, Global LNG Marketing, overseeing ExxonMobil’s LNG portfolio globally, a position he held until 2021. Between 2021 and 2023, he held positions as Vice President, Commercial & Power and then as Vice President, Strategy and Business Development, culminating in his current role as Transition Executive – Pioneer. Mr. Volkov is a graduate of The University of Nizhni Novgorod, Russia, and holds an MBA from The University of Alabama.