Ranger Energy Services, Inc.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

For the fiscal year ended December 31, 2025

or

For the transition period from to

Commission file number 001-38183

(Exact name of registrant as specified in its charter)

10350 Richmond, Suite 550

Houston, Texas 77042

(713)935-8900

(Address, Including Zip Code, and Telephone Number, Including Area Code, of Registrant’s Principal Executive Offices)

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark if the Registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ☐No ☒

Indicate by check mark if the Registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes ☐No ☒

Indicate by check mark whether the Registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the Registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐

Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act:

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the Registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. Yes☒ No ☐

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements.☐

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b). ☐

Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No☒

As of June 30, 2025, the aggregate market value of the Class A Common Stock of Ranger Energy Services, Inc. held by non-affiliates of the Registrant was $244.2 million, based on the closing market price as reported on the New York Stock Exchange of $11.94. As of February 28, 2026, the Registrant had 23,550,288 shares of Class A Common Stock andzero shares of Class B Common Stock outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the registrant’s definitive proxy statement for the 2026 Annual Meeting of Stockholders, to be filed no later than 120 days after the end of the fiscal year to which this Annual Report on Form 10-K relates, are incorporated by reference into Part III of this Annual Report on Form 10-K.

TABLE OF CONTENTS

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS

The information in this Annual Report on Form 10-K (“Annual Report”) includes “forward‑looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”), and Section 21E of the Exchange Act of 1934, as amended (the “Exchange Act”). All statements, other than statements of historical fact included in this Annual Report, regarding our strategy, future operations, financial position, estimated revenue and losses, projected costs, prospects, plans and objectives of management are forward‑looking statements. When used in this Annual Report, the words “may,” “should,” “intend,” “could,” “believe,” “anticipate,” “estimate,” “expect,” “outlook,” “project” and similar expressions are intended to identify forward‑looking statements, although not all forward‑looking statements contain such identifying words. These forward‑looking statements are based on our current expectations and assumptions about future events and are based on currently available information as to the outcome and timing of future events.

We caution you that these forward‑looking statements are subject to risks and uncertainties, most of which are difficult to predict and many of which are beyond our control. These risks could materially and adversely affect our financial condition, results of operations and prospects, and include, but are not limited to, the following, together with the risks described under “Part I, Item 1A. Risk Factors” in this Annual Report:

•reductions in capital spending by participants in the oil and natural gas industry;

•volatility of oil and natural gas prices which impact the supply of and demand for oil and natural gas;

•capital expenditures for new equipment as we grow our operations and capital expenditures resulting from environmental initiatives, new regulatory requirements, and advancements in oilfield services technologies;

•reduced demand for our services due to fuel conservation measures and resulting reduction in demand for oil and natural gas;

•intense competition that may cause us to lose market share and could negatively affect our ability to market our services and expand our operations;

•difficulties we may have managing the growth of our business, including through potential future acquisitions and mergers;

•challenges associated with integrating acquired or merged entities, and risks that the expected benefits from acquisitions (including expected synergies) are not realized;

•customer concentrations and reliance upon a few large customers that may adversely affect our revenue and operating results;

•increasing competition for workers that could create labor shortages;

•unsatisfactory safety performance may negatively affect our current and future customer relationships and, to the extent we fail to retain existing customers or attract new customers, adversely impact our revenue;

•accidents, blowouts, explosions, craterings, fires, oil spills and releases of drilling, completion or fracturing fluids or hazardous materials or pollutants into the environment;

•claims, including personal injury and property damages;

•federal and state legislative and regulatory initiatives that could result in increased costs and additional operating restrictions or delays, as well as adversely affect demand for our support services;

•environmental and occupational health and safety laws and regulations that may expose us to significant costs and liabilities;

•risks arising from climate change, and increased attention and proposed and future requirements relating to sustainability matters and conservation measures may adversely impact our or our customers’ businesses;

•seasonal weather conditions, severe weather events and natural disasters that could severely disrupt normal operations and harm our business;

•cybersecurity and data privacy risks, including interruptions, failures or attacks in our information technology systems;

•interest rate risk as a result of our revolving credit facility and other financing arrangements to fund operations;

•certain restrictions under the terms of our Wells Fargo Revolving Credit Facility may limit our future ability to pay cash dividends;

•liquidity and access to capital that could result in challenges and vulnerabilities associated with our ability to secure the necessary financial resources to support our operations, growth, and strategic initiatives;

•potential challenges, uncertainties, and risks associated with the rapid development and adoption of new technologies that could displace our existing asset base or impact traditional oil and gas operations, including automation, artificial intelligence, and renewable energy solutions;

•sufficiency of our insurance program to adequately protect against potential risks and liabilities;

•commodity price risk due to fluctuations in the prices of oil and natural gas, and resulting impacts on the activity levels of our exploration and production (“E&P”) customers;

•the impact of geopolitical, economic and market conditions and developments, including changes in global trade policies and tariffs, on our industry and commodity prices;

•credit risk associated with our trade receivables;

•general economic conditions or a weakening of the broader energy industry, including as a result of inflation or recession; and

•risks related to our ownership and capital structure.

Our future results will depend upon various other risks and uncertainties, including, but not limited to, those detailed in our current and past filings with the SEC. These documents are available through our website or through the SEC’s Electronic Data Gathering and Analysis Retrieval (“EDGAR”) system at www.sec.gov. Should one or more of the risks or uncertainties described occur, or should underlying assumptions prove incorrect, our actual results and plans could differ materially from those expressed in any forward‑looking statements.

All forward‑looking statements, expressed or implied, included in this Annual Report are expressly qualified in their entirety by this cautionary statement. This cautionary statement should also be considered in connection with any subsequent written or oral forward‑looking statements that we or persons acting on our behalf may issue. Except as otherwise required by applicable law, we disclaim any duty to update any forward‑looking statements, all of which are expressly qualified by the statements in this section, to reflect events or circumstances after the date of this Annual Report.