TERRE HAUTE, Ind., June 05, 2026 (GLOBE NEWSWIRE) — Hallador Energy Company (Nasdaq: HNRG) (“Hallador” or the “Company”) today announced that its subsidiary, Hallador Power Company, LLC (“Hallador Power”), was selected by the U.S. Department of Energy’s (“DOE”) Hydrocarbons and Geothermal Energy Office to begin award negotiations for up to $27.2 million, in potential federal […] More