NEW YORK, June 16, 2025 (GLOBE NEWSWIRE) -- Bragar Eagel & Squire, P.C., a nationally recognized stockholder rights law firm, is investigating potential claims against Hallador Energy Company (“Hallador” or the “Company”) (NASDAQ:HNRG)on behalf of Hallador stockholders. Our investigation concerns whether Hallador has violated the federal securities laws and/or engaged in other unlawful business practices. Click here to participate in the action. On May 23, 2025, Hallador disclosed that its agreement with a ...