Hallador Energy Company (HNRG) saw its stock price surge 27.43% in after-hours trading on Monday, following the release of its impressive third-quarter 2025 financial results. The coal producer and power generator significantly outperformed analysts' expectations, demonstrating robust growth across key financial metrics.

The company reported total revenue of $146.8 million for Q3, marking a 40% increase year-over-year and substantially beating the IBES estimate of $110 million. Hallador's net income soared to $23.9 million, or $0.55 per share, up from $1.6 million in the same period last year. Adjusted EBITDA also saw a remarkable 1.6-fold increase to $24.9 million, surpassing the analyst consensus of $13 million.

Hallador's strong performance was attributed to favorable market conditions, including increased energy demand and higher natural gas prices. The company's CEO, Brent Bilsland, highlighted efficient operations at both their power generation and coal mining segments. Additionally, Hallador filed an ERAS application for a 525MW gas generation expansion at its Merom site, signaling potential future growth. The company also reported strong forward sales, with total contracted revenue of $921.7 million through 2029, further boosting investor confidence in its long-term prospects.