ProPetro Holding Corp.

(4) Inclusive of cash and available capacity (availability) under revolving credit facility and Caterpillar Equipment Loan Agreement as of the period end.

SEC original ↗ProPetro Holding Corp. — Earnings release (8-K exhibit)EX-99Oct 28, 2026

During the third quarter, capital expenditures paid were $123 million and capital expenditures incurred were $171 million, including approximately $43 million supporting the completions business and approximately $128 million supporting PROPWR equipment orders.

SEC original ↗ProPetro Holding Corp. — Earnings release (8-K exhibit)EX-99Oct 28, 2026

Notably, the difference between incurred and paid capital expenditures is primarily comprised of PROPWR- related capital expenditures that have been financed and paid directly by the financing partner and unpaid capital expenditures included in accounts payable and accrued liabilities.

SEC original ↗ProPetro Holding Corp. — Earnings release (8-K exhibit)EX-99Oct 28, 2026

Net cash used in investing activities as shown on the statement of cash flows during the third quarter of 2026 was $122 million, which included capital expenditures paid of $123 million, offset by $1 million in proceeds from certain asset sales.

SEC original ↗ProPetro Holding Corp. — Earnings release (8-K exhibit)EX-99Oct 28, 2026

Conflicting figures recorded for this item — see “Conflicting figures” below.

Turning to our outlook, we anticipate full-year 2026 capital expenditures incurred to be between $525 million and $575 million.

SEC original ↗ProPetro Holding Corp. — Earnings release (8-K exhibit)EX-99Oct 28, 2026

Of this, the completions business is still expected to account for approximately $125 million to $145 million, largely dependent on delivery timelines of certain capex related items heading through year end and into 2027.

SEC original ↗ProPetro Holding Corp. — Earnings release (8-K exhibit)EX-99Oct 28, 2026

ProPetro is strategically located in and levered to the Permian, with 100% of its completions business revenue coming from this region.

SEC original ↗ProPetro Holding Corp. — Earnings release (8-K exhibit)EX-99Oct 28, 2026

~$20 source in 2Q26, partially offset by higher Adjusted EBITDA Includes net proceeds from $690 convertible notes issued May 2026 A Strategy Yielding Results (1) Earnings per share metrics are calculated using a fully diluted share count of 123M and 155M for 2Q26 and 3Q26, respectively.

SEC original ↗ProPetro Holding Corp. — Earnings release (8-K exhibit)EX-99Oct 28, 2026

7 SEP 2026 Targa ~230 MW contract announced; ~510 MW under contract PROPWR Roadmap: From Launch to ~2.6 GW C l e a r M i l e s t o n e s , S e c u r e d S u p p l y , C o n t r a c t e d G r o w t h T O D A Y T A R G E T E D M I L E S T O N E SA C C O M P L I S H E D 4Q 2024 PROPWR launched MAY 2025 First oilfield microgrid contract announced O CT 2025 First hyperscaler data center contract announced APR 2026 Caterpillar framework agreement announced, bringing secured supply to ~2.6 GW MAY 2026 $690M convertible offering; marking ~$1.5B raised in past 2 yrs.

SEC original ↗ProPetro Holding Corp. — Earnings release (8-K exhibit)EX-99Oct 28, 2026

11 Recent PROPWR Milestones Secured Strategic Framework Agreement with Caterpillar Inc.

SEC original ↗ProPetro Holding Corp. — Earnings release (8-K exhibit)EX-99Oct 28, 2026

We will continue to approach capital decisions opportunistically and as we execute against our strategy.

SEC original ↗ProPetro Holding Corp. — Earnings release (8-K exhibit)EX-99Oct 28, 2026

and global trade policy, including the imposition of tariffs and retaliatory measures, and other factors described in the Company's Annual Report on Form 10-K and Quarterly Reports on Form 10-Q, particularly the Risk Factors sections of such filings, and other filings with the Securities and Exchange Commission (the SEC ).

SEC original ↗ProPetro Holding Corp. — Earnings release (8-K exhibit)EX-99Oct 28, 2026

Although forward-looking statements reflect our good faith beliefs at the time they are made, forward-looking statements are subject to a number of risks and uncertainties that may cause actual events and results to differ materially from the forward-looking statements.

SEC original ↗ProPetro Holding Corp. — Earnings release (8-K exhibit)EX-99Oct 28, 2026

Such risks and uncertainties include the volatility of oil prices, changes in the supply of and demand for power generation, the risks associated with the establishment of a new service line, including delays, lack of customer acceptance and cost overruns, the global macroeconomic uncertainty related to conflict in the Middle East region, including the Iran War, the Russia-Ukraine war, and events in Venezuela, general economic conditions, including the impact of continued inflation, central bank policy actions, the risk of a global recession, U.

SEC original ↗ProPetro Holding Corp. — Earnings release (8-K exhibit)EX-99Oct 28, 2026

Readers are cautioned not to place undue reliance on such forward-looking statements and are urged to carefully review and consider the various disclosures made in the Company s Annual Report on Form 10-K, Quarterly Reports on Form 10-Q and other filings made with the SEC from time to time that disclose risks and uncertainties that may affect the Company s business.

SEC original ↗ProPetro Holding Corp. — Earnings release (8-K exhibit)EX-99Oct 28, 2026

Forward-looking statements are subject to several risks and uncertainties, many of which are beyond our control.

SEC original ↗ProPetro Holding Corp. — Earnings release (8-K exhibit)EX-99Oct 28, 2026

These risks and uncertainties can cause actual results to differ materially from our current expectations.

SEC original ↗ProPetro Holding Corp. — Earnings release (8-K exhibit)EX-99Oct 28, 2026

Revenue — prior quarter passage and this quarter's passage are both cited.

SEC original ↗ProPetro Holding Corp. — Earnings release (8-K exhibit)EX-99Oct 28, 2026

Total revenue — prior quarter passage and this quarter's passage are both cited.

SEC original ↗ProPetro Holding Corp. — Presentation / slide deck (8-K exhibit)EX-99Oct 28, 2026