Kosmos Energy Provides Operational Update

Kosmos Energy (NYSE/LSE: KOS) (“Kosmos” or the “Company”) is pleased to provide the following update on activities across its portfolio: In Ghana, the third well of the 2026 campaign, J76, was completed and came online in mid-June, two weeks later than initially planned. Initial production rates have been very strong with the new well, which benefits from the latest seismic and Kosmos’ reservoir modelling, contributing approximately 20,000 barrels of oil per day (bopd) to gross production. Jubilee production in the second quarter 2026 was approximately 72,000 bopd with an exit rate above 85,000 bopd. The next well in the program, J77, has been completed and production is expected imminently. This well is expected to take gross Jubilee production to approximately 90,000 bopd. The final producer well (J50) is a completion of a previously drilled well and is expected online around the end of July. To complete this year’s drilling program, a water injector well is expected online around the end of the third quarter, which will prepare the northeastern area of Jubilee for the 2027/2028 drilling program. Two full Jubilee cargo liftings and one TEN lifting took place in the second quarter, in line with guidance. A third Jubilee cargo began lifting on the last day of the quarter and was completed on July 2. In Mauritania and Senegal, the Greater Tortue Ahmeyim (GTA) LNG project continues to perform strongly with nine LNG cargos lifted in the second quarter, at the upper end of guidance. A condensate cargo was also lifted during the second quarter. In the Gulf of America, post the sanction of Tiberius in March, the farm down continues to make good progress, with completion expected in the...