Kosmos Energy Limited (NYSE: KOS ) stock price declined 10.68% between December 10 and December 17, 2025, including Energy stocks that lost the most this week.
Kosmos Energy Limited (NYSE: KOS ) is a leading deepwater exploration and production company focused on meeting the world’s growing energy demand.
On December 12, Mizuho analyst William Janella lowered the firm’s price target on Kosmos Energy Ltd. (NYSE: KOS ) from $2 to $1.50, but maintained a ‘neutral’ rating on the stock. The adjustment came as the analyst firm updated its rankings and targets in the exploration and production sector as part of its 2026 outlook. While the US oil and gas sector is currently witnessing a downside on the back of more deals and higher gas storage, the analyst sees ‘undervalued’, particularly in the exploration and production group.
Earlier on December 5, BofA analyst Matthew Smith double-downgraded Kosmos Energy Ltd. (NYSE: KOS ) from ‘buy’ to ‘underperform’, while also significantly lowering his price target from $3.4 to $1. The decline comes after the analyst firm trimmed its Brent oil price forecasts for 2026 and 2027 to $60 and $62 a barrel, respectively.
Cosmos Energy Ltd. (NYSE: KOS ) reported on December 10 that the Senegalese government is planning to nationalize the Yakar Terenga project, one of the world’s largest gas discoveries in recent years. Kosmos operates the project, and the energy operator also owns a 90% stake. However, the company later confirmed that the Senegalese Ministry of Energy has no intention of nationalizing the gas field. Kosmos also added that it would surrender its license for the project by July 2026 if it fails to find a new partner.
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