ProPetro Holding Corp. (“ProPetro” or the “Company”) (NYSE: PUMP) today announced that it has appointed Mary P. Ricciardello to its Board of Directors (the “Board”), effective January 20, 2023. Ms. Ricciardello is a seasoned financial executive with over thirty years of experience serving on boards, and as an executive in finance and accounting roles, in the energy industry.

Phillip Gobe, Chairman of the ProPetro Board, said, “We are pleased to welcome Mary to the ProPetro Board and look forward to benefitting from her deep industry knowledge as we create a stronger, more resilient, and diversified company. Mary’s appointment demonstrates our ongoing commitment to maintaining a highly diverse and qualified Board. We are confident her significant public company board experience and track record of overseeing disciplined, accretive growth will be a valuable addition to our Board and are excited to work with her to advance our strategic goals to create value for shareholders.”

“I am honored to join ProPetro’s Board at such an exciting time for the Company,” said Ms. Ricciardello. “I have followed ProPetro’s evolution and admire the Company’s commitment to its people, the community and environment in which they work, and its shareholders. I look forward to working with my fellow Board members to help drive the Company’s continued success.”

Sam Sledge, CEO, said, “We are delighted to welcome Mary to ProPetro and look forward to benefiting from her deep experience in the energy sector and public company boards. Given her experience and qualifications, Mary will also serve on our Nominating and Corporate Governance and Audit Committees. Her diverse experience will be a great addition to an already impressive collection of board members.”