Kosmos and its partner Occidental have been assessing potential improvements to their planned Tiberius development in Keathley Canyon Block 964 in the US Gulf of Mexico.
These have led to a lower-cost concept, Kosmos said in a results update, which will be supported by results from a new ocean-bottom node survey over the field this year. Tiberius, discovered in October 2023, is in 7,500 ft (2,300 m) of water, 6 miles southeast of Occidental’s Lucius spar platform.
At the Beacon-operated Winterfell Field in the Green Canyon area, remediation of the Winterfell-3 well has not been successful. The partners are now evaluating a future sidetrack to produce the reserves.
In the meantime, drilling has started of the Winterfell-4 well, with first production expected this summer.
Offshore Mauritania and Senegal, Kosmos is a partner to bp in the Greater Tortue Ahmeyim (GTA) project, where all four of the FLNG trains are now operational and are being tested at ~10% above the nameplate capacity.
The subsurface is performing ahead of expectations, Kosmos added, with higher connected volumes that could potentially reduce the number of future wells required. Work continues to bring down GTA Phase 1 operating costs.
Studies are also underway on Phase 1+, involving a relatively low-cost brownfield expansion of the development that could double gas sales via increased LNG production and gas exports locally to Mauritania and Senegal. It would involve low-cost upgrades to existing facilities.
Offshore Ghana, Kosmos is a co-venturer in the Jubilee Field, where the drillship Noble Venturer should arrive later this month to drill two wells.
In 2026, the same rig should drill four more wells on the field, which should benefit from newly processed 4D seismic data.
