Exhibit 99.1 Hallador Energy Company Reports Record Net Income and Adjusted EBITDA for 2023; Signs MOU to attract data centers to Merom Power Plant. TERRE HAUTE, Ind., March 13, 2024 -- Hallador Energy Company (NASDAQ – HNRG) reports full year 2023 net income of $44.8 million, $1.35 basic earnings per share, operating cash flow of $59.4 million, and adjusted EBITDA of $107 million, all respectively. Brent Bilsland, President and Chief Executive Officer, stated, “Hallador had a solid year as a company. Our c ...