EXHIBIT 99.1 Hallador Energy Company Reports First Quarter 2024 Financial and Operating Results TERRE HAUTE, Ind., May 6, 2024 -- Hallador Energy Company (NASDAQ – HNRG) reported a net loss of $1.7 million, $(0.05) basic earnings per share, operating cash flow of $16.4 million, and adjusted EBITDA of $6.8 million for the quarter ended March 31, 2024. Brent Bilsland, President and Chief Executive Officer, stated, "Throughout the first quarter, we continued our progress on transitioning the focus of Hallador ...