Infinity Natural Resources (INR) reported a Q1 net loss Monday of $2.27 per diluted share.
Analysts polled by FactSet expected earnings of $0.65.
The company went public in early 2025, and comparable per-share figures for the prior-year quarter were not reported.
Revenue for the quarter ended March 31 was $85.2 million, up from $50.2 million a year earlier.
Analysts expected $79.8 million.
Shares of Infinity Natural Resources were up 5% in after-hours trading.