Exhibit 99.1

Antero Resources Announces Fourth Quarter 2025 Results and 2026 Guidance

Denver, Colorado, February 11, 2026—Antero Resources Corporation (NYSE: AR) (“Antero Resources,” “Antero,” or the “Company”) today announced its fourth quarter 2025 financial and operating results, year end 2025 estimated proved reserves and 2026 guidance. The relevant consolidated financial statements are included in Antero Resources’ Annual Report on Form 10-K for the year ended December 31, 2025.

Fourth Quarter 2025 Highlights:

2026 Guidance Highlights:

Michael Kennedy, CEO and President of Antero Resources commented, “2025 was a pivotal year for Antero as we took significant steps in increasing our production and drilling inventory. During the year we completed a transaction to acquire higher working interest in our wells, followed by the largest acquisition in our company’s history, acquiring our West Virginia peer, HG Energy. The recent closing of the HG Energy acquisition was ahead of schedule and will increase our scale and dry gas exposure. This larger production base and inventory positions Antero to capture the significant demand opportunities that are expected from LNG exports, data centers and natural gas fired power plants.”

Mr. Kennedy continued, “Our 2026 budget highlights these transformational changes as our production base increases from 3.4 Bcfe/d in 2025 to more than 4.2 Bcfe/d by year end 2026. We intend to run 3 drilling rigs and 2 completion crews, which provides us with the optionality to grow our production base further if supported by the commodity price backdrop and in basin demand opportunities.”

Brendan Krueger, CFO of Antero Resources added, “The closing of the HG Energy acquisition immediately improves our competitive positioning by significantly reducing our cost structure and increases our local dry gas exposure. These higher margins are hedged and are expected to drive a substantial increase in Adjusted Free Cash Flow and reduce leverage to under 1.0x during the year. We intend to remain focused on debt reduction and continuing to opportunistically repurchase shares.”

For a discussion of the non-GAAP financial measures including Adjusted Net Income, Adjusted EBITDAX, Adjusted Free Cash Flow and Net Debt, please see “Non-GAAP Financial Measures.”

Transaction Updates

The HG Energy acquisition closed in February 2026. The Ohio Utica Shale divestiture is expected to close by the end of February 2026. The timing of these transactions are reflected in the below 2026 guidance.

2026 Guidance

Antero’s 2026 drilling and completion capital budget is $1 billion and includes $900 million for maintenance capital and $100 million of capital related to not electing to enter into a drilling joint venture during the year. Discretionary growth capital up to $200 million will be based on the commodity price outlook and in basin demand needs throughout the year. This growth capital reflects completing an additional two to three pads in 2026, which could increase production to approximately 4.5 Bcfe/d in 2027. First quarter 2026 production is expected to average approximately 3.8 Bcfe/d, with the second quarter increasing to 4.1 Bcfe/d driven by a full quarter of HG contribution. The second half of 2026 is expected to average approximately 4.2 Bcfe/d. This results in a full year average of approximately 4.1 Bcfe/d. The Company’s land capital guidance is $100 million.

The following is a summary of Antero Resources’ 2026 capital budget.  

The following is a summary of Antero Resources’ 2026 production, pricing and cash expense guidance:

Adjusted Free Cash Flow

During the fourth quarter of 2025, Adjusted Free Cash Flow before Changes in Working Capital was $204 million.

Fourth Quarter 2025 Financial Results

Net daily natural gas equivalent production in the fourth quarter averaged 3.5 Bcfe/d, including 208 MBbl/d of liquids. Antero’s average realized natural gas price before hedges was $3.71 per Mcf, a $0.16 per Mcf premium to the benchmark index price. Antero’s average realized C3+ NGL price before hedges was $35.41 per barrel, representing a $1.52 per barrel premium to the benchmark index price.

The following table details average net production and average realized prices for the three months ended December 31, 2025:

All-in cash expense, which includes lease operating, gathering, compression, processing and transportation and production and ad valorem taxes was $2.56 per Mcfe in the fourth quarter, as compared to $2.45 per Mcfe during the fourth quarter of 2024. Net marketing expense was $0.04 per Mcfe during the fourth quarter of 2025, compared to $0.06 during the fourth of 2024.

Fourth Quarter 2025 Operating Results

Antero placed 18 Marcellus wells to sales during the fourth quarter with an average lateral length of 12,500 feet. Twelve of these wells have been on line for approximately 60 days with an average rate per well of 25 MMcfe/d, including 1,410 Bbl/d of liquids per well assuming 25% ethane recovery. In addition, Antero set a number of company operational records, including:

Fourth Quarter 2025 Capital Investment

Antero’s drilling and completion capital expenditures for the three months ended December 31, 2025 were $159 million. In addition to capital invested in drilling and completion activities, the Company invested $33 million in land during the fourth quarter. Through this investment, Antero added approximately 7,000 net acres, representing 26 incremental drilling locations at an average cost of approximately $900,000 per location. During 2025, Antero’s organic leasing program has added 102 incremental drilling locations at an average cost of approximately $925,000 per location, more than offsetting the 78 gross locations drilled during the year.

Natural Gas Hedge Program

Antero added natural gas swaps and basis hedges for the full years 2026 and 2027, including positions acquired from HG Energy, in order to support its acquisition and development program. For more information on our hedge portfolio, please see the presentation titled “Hedges and Guidance Presentation” on Antero’s website. The hedges below include positions executed through February 6, 2026 and reflect Antero stand-alone for the month of January 2026 and inclusive of HG hedges from February to December 2026.

Year End Proved Reserves

At December 31, 2025, Antero’s estimated proved reserves were 19.1 Tcfe, a 7% increase from the prior year. Estimated proved reserves were comprised of 61% natural gas, 38% NGLs and 1% oil.

Estimated proved developed reserves were 14.4 Tcfe. At year end 2025, Antero’s five year development plan included 296 gross PUD locations. Antero's proved undeveloped locations have an average estimated BTU of 1215, with an average lateral length of 14,650 feet.

Antero's 4.7 Tcfe of estimated proved undeveloped reserves will require an estimated $2.3 billion of future development capital over the next five years, resulting in an estimated average future development cost for proved undeveloped reserves of $0.49 per Mcfe.

The following table presents a summary of changes in estimated proved reserves (in Tcfe).

Conference Call

A conference call is scheduled on Thursday, February 12, 2026 at 9:00 am MT to discuss the financial and operational results. A brief Q&A session for security analysts will immediately follow the discussion of the results. To participate in the call, dial in at 877-407-9079 (U.S.), or 201-493-6746 (International) and reference “Antero Resources.” A telephone replay of the call will be available until Thursday, February 19, 2026 at 9:00 am MT at 877-660-6853 (U.S.) or 201-612-7415 (International) using the conference ID: 13758128. To access the live webcast and view the related earnings conference call presentation, visit Antero's website at www.anteroresources.com. The webcast will be archived for replay until Thursday, February 19, 2026 at 9:00 am MT.

Presentation

An updated presentation will be posted to the Company's website before the conference call. The presentation can be found at www.anteroresources.com on the homepage. Information on the Company's website does not constitute a portion of, and is not incorporated by reference into this press release.

Non-GAAP Financial Measures

Adjusted Net Income

Adjusted Net Income as set forth in this release represents net income, adjusted for certain items. Antero believes that Adjusted Net Income is useful to investors in evaluating operational trends of the Company and its performance relative to other oil and gas producing companies. Adjusted Net Income is not a measure of financial performance under GAAP and should not be considered in isolation or as a substitute for net income as an indicator of financial performance. The GAAP measure most directly comparable to Adjusted Net Income is net income. The following table reconciles net income to Adjusted Net Income (in thousands):

Net Debt

Net Debt is calculated as total long-term debt less cash and cash equivalents. Management uses Net Debt to evaluate the Company’s financial position, including its ability to service its debt obligations.

The following table reconciles consolidated total long-term debt to Net Debt as used in this release (in thousands):

Adjusted Free Cash Flow

Adjusted Free Cash Flow is a measure of financial performance not calculated under GAAP and should not be considered in isolation or as a substitute for cash flow from operating, investing, or financing activities, as an indicator of cash flow or as a measure of liquidity. The Company defines Adjusted Free Cash Flow as net cash provided by operating activities, less capital expenditures, which includes additions to unproved properties, drilling and completion costs and additions to other property and equipment, less distributions to non-controlling interests in Martica, plus transaction expenses.

The Company has not provided projected net cash provided by operating activities or a reconciliation of Adjusted Free Cash Flow to projected net cash provided by operating activities, the most comparable financial measure calculated in accordance with GAAP. The Company is unable to project net cash provided by operating activities for any future period because this metric includes the impact of changes in operating assets and liabilities related to the timing of cash receipts and disbursements that may not relate to the period in which the operating activities occurred. The Company is unable to project these timing differences with any reasonable degree of accuracy without unreasonable efforts.

Adjusted Free Cash Flow is a useful indicator of the Company’s ability to internally fund its activities, service or incur additional debt and estimate our ability to return capital to shareholders. There are significant limitations to using Adjusted Free Cash Flow as a measure of performance, including the inability to analyze the effect of certain recurring and non-recurring items that materially affect the Company’s net income, the lack of comparability of results of operations of different companies and the different methods of calculating Adjusted Free Cash Flow reported by different companies. Adjusted Free Cash Flow does not represent funds available for discretionary use because those funds may be required for debt service, land acquisitions and lease renewals, other capital expenditures, working capital, income taxes, exploration expenses, and other commitments and obligations.

Adjusted EBITDAX

Adjusted EBITDAX is a non-GAAP financial measure that we define as net income, adjusted for certain items detailed below.

Adjusted EBITDAX as used and defined by us, may not be comparable to similarly titled measures employed by other companies and is not a measure of performance calculated in accordance with GAAP. Adjusted EBITDAX should not be considered in isolation or as a substitute for operating income or loss, net income or loss, cash flows provided by operating, investing, and financing activities, or other income or cash flow statement data prepared in accordance with GAAP. Adjusted EBITDAX provides no information regarding our capital structure, borrowings, interest costs, capital expenditures, working capital movement, or tax position. Adjusted EBITDAX does not represent funds available for discretionary use because those funds may be required for debt service, capital expenditures, working capital, income taxes, exploration expenses, and other commitments and obligations. However, our management team believes Adjusted EBITDAX is useful to an investor in evaluating our financial performance because this measure:

There are significant limitations to using Adjusted EBITDAX as a measure of performance, including the inability to analyze the effects of certain recurring and non-recurring items that materially affect our net income or loss, the lack of comparability of results of operations of different companies, and the different methods of calculating Adjusted EBITDAX reported by different companies.

The GAAP measures most directly comparable to Adjusted EBITDAX are net income and net cash provided by operating activities. The following table represents a reconciliation of Antero’s net income, including noncontrolling interest, to Adjusted EBITDAX and a reconciliation of Antero’s Adjusted EBITDAX to net cash provided by operating activities per our condensed consolidated statements of cash flows, in each case, for the three months ended December 31, 2024 and 2025 (in thousands). Adjusted EBITDAX also excludes the noncontrolling interests in Martica, and these adjustments are disclosed in the table below as Martica related adjustments.

Drilling and Completion Capital Expenditures

For a reconciliation between cash paid for drilling and completion capital expenditures and drilling and completion accrued capital expenditures during the period, please see the capital expenditures section below (in thousands):

Notwithstanding their use for comparative purposes, the Company’s non-GAAP financial measures may not be comparable to similarly titled measures employed by other companies.

This release includes "forward-looking statements." Words such as “may,” “assume,” “forecast,” “position,” “predict,” “strategy,” “expect,” “intend,” “plan,” “estimate,” “anticipate,” “believe,” “project,” “budget,” “potential,” or “continue,” “goal,” “target,” and similar expressions are used to identify forward-looking statements, although not all forward-looking statements contain such identifying words. Such forward-looking statements are subject to a number of risks and uncertainties, many of which are not under Antero Resources’ control. All statements, except for statements of historical fact, made in this release regarding activities, events or developments Antero Resources expects, believes or anticipates will or may occur in the future, such as those regarding our financial strategy, future operating results, financial position, estimated revenues and losses, potential acquisitions, dispositions or other strategic transactions, including the pending Ohio Utica Shale divestiture, the timing thereof, and our ability to integrate acquired assets and achieve the intended operational, financial and strategic benefits from any such transactions, projected costs, estimated realized natural gas, NGL and oil prices, prospects, plans and objectives of management, return of capital program, expected results, impacts of geopolitical, including the conflicts in Ukraine and in the Middle East, and world health events, future commodity prices, future production targets, including those related to certain levels of production, future earnings, leverage targets and debt repayment, future capital spending plans, improved and/or increasing capital efficiency, expected drilling and development plans, projected well costs and cost savings initiatives, operations of Antero Midstream, future financial position, the participation level of our drilling partner and the financial and production results to be achieved as a result of that drilling partnership, the other key assumptions underlying our projections, the impact of recently enacted legislation, and future marketing opportunities, are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. These forward-looking statements are based on management’s current beliefs, based on currently available information, as to the outcome and timing of future events. All forward-looking statements speak only as of the date of this release. Although Antero Resources believes that the plans, intentions and expectations reflected in or suggested by the forward-looking statements are reasonable, there is no assurance that these plans, intentions or expectations will be achieved. Therefore, actual outcomes and results could materially differ from what is expressed, implied or forecast in such statements. Except as required by law, Antero Resources expressly disclaims any obligation to and does not intend to publicly update or revise any forward-looking statements.

Antero Resources cautions you that these forward-looking statements are subject to all of the risks and uncertainties, incidental to our business, most of which are difficult to predict and many of which are beyond the Antero Resources’ control. These risks include, but are not limited to, commodity price volatility, inflation, supply chain or other disruption, availability and cost of drilling, completion and production equipment and services, environmental risks, drilling and completion and other operating risks, marketing and transportation risks, regulatory changes or changes in law, changes in emission calculation methods, the uncertainty inherent in estimating natural gas, NGLs and oil reserves and in projecting future rates of production, cash flows and access to capital, the timing of development expenditures, conflicts of interest among our stockholders, impacts of geopolitical, including the conflicts in Ukraine and the Middle East, and world health events, cybersecurity risks, the state of markets for, and availability of, verified quality carbon offsets and the other risks described under the heading " Risk Factors" in Antero Resources’ Annual Report on Form 10-K for the year ended December 31, 2025.

For more information, contact Daniel Katzenberg, Director - Finance and Investor Relations of Antero Resources at (303) 357-7219 or dkatzenberg@anteroresources.com.

ANTERO RESOURCES CORPORATION

Consolidated Balance Sheets

(In thousands, except per share amounts)

ANTERO RESOURCES CORPORATION

Consolidated Statements of Operations and Comprehensive Income

(In thousands, except per share amounts)

ANTERO RESOURCES CORPORATION

Consolidated Statements of Cash Flows

(In thousands)

The following table sets forth selected financial data for the three months ended December 31, 2024 and 2025 (in thousands):

* Not meaningful

The following table sets forth selected financial data for the three months ended December 31, 2024 and 2025:

* Not meaningful