ProPetro Holding Corp

To the Shareholders and the Board of Directors of

ProPetro Holding Corp. and Subsidiaries

Opinion on the Financial Statements

We have audited, before the effects of the retrospective adjustments to the disclosures for a change in the composition of reportable segments and the adoption of ASU No. 2023-07, Segment Reporting, discussed in Note 11 to the consolidated financial statements, the consolidated statements of operations, shareholders' equity, and cash flows of ProPetro Holding Corp. and Subsidiaries (the “Company”), for the year ended December 31, 2022, and the related notes (collectively, referred to as, the “financial statements”) (the 2022 financial statements before the effects of the retrospective adjustments discussed in Note 11 to the financial statements are not presented herein). In our opinion, the 2022 financial statements, before the effects of the retrospective adjustments to the disclosures for a change in the composition of reportable segments and the adoption of ASU No. 2023-07, Segment Reporting, discussed in Note 11 to the financial statements, present fairly, in all material respects, the results of the Company’s operations and cash flows for the year ended December 31, 2022, in conformity with accounting principles generally accepted in the United States of America.

We were not engaged to audit, review, or apply any procedures to the retrospective adjustments to the disclosures for a change in the composition of reportable segments and the adoption of ASU No. 2023-07, Segment Reporting discussed in Note 11 to the financial statements, and accordingly, we do not express an opinion or any other form of assurance about whether such retrospective adjustments are appropriate and have been properly applied. Those retrospective adjustments were audited by other auditors.

These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company's financial statements based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audit included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audit also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audit provided a reasonable basis for our opinion.

/s/DELOITTE & TOUCHE LLP

February 23, 2023

We began serving as the Company's auditor since 2013. In 2023, we became the predecessor auditor.