AR · Antero Resources Corporation

This 8-K/A amendment completes disclosure requirements under Item 9.01 for Antero Resources Corporation's (AR) $2.8 billion acquisition of HG Energy II Production Holdings, LLC (HG Production), a natural gas producer in Southwest Pennsylvania and West Virginia. The transaction, effective January 1, 2026 and closed February 3, 2026, significantly expands Antero's asset base with HG's $2.05 billion net oil and gas properties and $159 million current assets as of December 31, 2025. HG delivered strong pre-acquisition performance with $801 million total revenues (primarily natural gas sales), $374 million operating income, and $374 million net income, supported by $471 million operating cash flow despite $417 million investing outflows. Pro forma combined statements illustrate integration impact, showing 2025 pro forma revenues rising to $6.12 billion and net income to $836 million (diluted EPS $2.68), with adjustments for acquisition accounting, financing costs, and reclassifications. Financing comprised $750 million 5.400% notes issued January 28, 2026, a $1.5 billion term loan, and credit facility draws, increasing pro forma long-term debt to nearly $4 billion. Auditor consents from BDO (dated April 3, 2026) and reserve engineers Cawley Gillespie validate statements for Antero's S-3 and S-8 registrations. Pro forma adjustments are preliminary pending final purchase price allocation, but highlight strategic scale in Appalachia production without assuming synergies. Investors gain full visibility into acquired assets' fundamentals and combined entity profile.