Hallador Energy Company

Hallador Energy Company (Nasdaq: HNRG) is a vertically integrated Independent Power Producer (IPP) based in Terre Haute, Indiana. The Company has two core businesses: Hallador Power Company, LLC, which produces electricity and provides accredited capacity at its one-Gigawatt (GW) Merom Generating Station, and Sunrise Coal, LLC, which produces and supplies fuel to the Merom Generating Station and other companies. To learn more about Hallador, visit the Company’s website at http://www.halladorenergy.com.

Current securities

1. Entry into a Material Definitive Agreement · Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement · Regulation FD DisclosureSep 17, 2026
2. Entry into a Material Definitive Agreement · Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet ArrangementAug 14, 2026
3. 10-Q filingAug 10, 2026
4. Results of Operations and Financial ConditionAug 10, 2026
5. SCHEDULE 13G filingJul 28, 2026