Hallador Energy (HNRG) stock is surging 19.54% in pre-market trading on Tuesday, following the release of its impressive third-quarter 2025 financial results and announcement of ambitious expansion plans. The coal producer and power generator significantly outperformed analysts' expectations, demonstrating robust growth across key financial metrics.

Hallador reported a net income of $0.55 per diluted share for Q3, a substantial increase from $0.04 a year earlier and far exceeding the FactSet analyst consensus estimate of a $0.08 loss. The company's revenue for the quarter reached $147.8 million, up from $105.2 million in the same period last year and surpassing the $110.0 million expected by analysts. This strong performance was attributed to favorable market conditions, including increased energy demand and higher natural gas prices.

Adding to investor enthusiasm, Hallador announced it had filed an ERAS (Expedited Resource Addition Study) application for a 525MW gas generation expansion at its Merom site, targeting completion in the fourth quarter of 2028. The company cited accelerating demand for accredited capacity as a key driver for this expansion. With a solid forward sales position of $921.7 million through 2029 and improving market conditions, investors appear optimistic about Hallador's growth prospects and financial stability, contributing to the significant pre-market stock price increase.