Antero Resources — Feb 11, 2026 release

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).   Proved reserves, December 31, 2024     17.9   Extensions, discoveries and other additions     0.7   Revisions of previous estimates     0.5   Revisions to five-year development plan     0.7   Price revisions     0.1   Acquisition of reserves     0.5   Production     (1.3 ) Proved reserves, December 31, 2025     19.1     4     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) usin