35/12-2 S (Grosbeak) is a discovery in the northern part of the North Sea, 23 kilometres south of the Gjøa field. The water depth is 360 metres. Grosbeak was proven in 2009, and delineated by appraisal wells 35/11-21 A and 35/11-21 S in 2018. The reservoirs contain gas and condensate in sandstone of Late Jurassic age in the Sognefjord Formation, and oil in sandstone of Late and Middle Jurassic age in the Fensfjord Formation and Brent Group. Various options are being evaluated for a development. Grosbeak will either be developed as a subsea tie-back to an existing installation or with a stand-alone production, storage and offloading vessel (FPSO). The plan for development and operation (PDO) is expected to be submitted by the end of 2022.
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