Kosmos Energy (KOS) reported a Q4 adjusted net loss Monday of $0.03 per diluted share, swinging from a profit of $ 0.31 a year earlier.
Analysts polled by FactSet expected a breakeven.
Revenue for the quarter ended Dec. 31 was $397.7 million compared with $507.8 million a year earlier.
Analysts surveyed by FactSet expected $396.6 million.