Frosk is a petroleum deposit located in production licences 340 and 869, in the central part of the North Sea. 

Frosk, which is located about 25 kilometres southwest of the production vessel on the Alvheim field (Alvheim FPSO), will be tied back to the FPSO via existing subsurface structures on Bøyla and Alvheim. 

Frosk was discovered in 2018, located in a reservoir sandstone layer interpreted to be injectites. Test production started on Frosk in 2019 to gather data and reduce uncertainty. This test production has provided valuable reservoir data, which has been used to optimise the number of wells, drainage strategy and production equipment on the FPSO. This well will be continued as an ordinary production well. 

The concept consists of a subsea development tied back to existing subsea equipment for Bøyla. Two new production wells will be drilled to ensure effective drainage of the remaining areas in Frosk. The chosen development solution involves a fast-track development, and production is expected to start 18 months after the PDO is submitted. Aker BP’s use of alliances and strategic partnerships is a crucial premise for the expedited development. The Frosk project will engage the Semi Alliance (Aker BP, Odfjell Drilling, Halliburton) for drilling and completion of new wells, and the Subsea Alliance (Aker BP, Subsea 7, Aker Solutions) for the subsea development. 

Overall investments in the project are estimated at around 2 billion kroner. Production is scheduled to start in the first quarter of 2023. Recoverable reserves in Frosk are estimated at around 10 million bbls of oil equivalent.