Oselvar is a subsea oil field, abandoned since April 2018, located 250 km southwest of Stavanger in the southern Norwegian section of the North Sea, close to the British border.[1] Oselvar was discovered in 1991.[2] The field is located at 23 km distance from the Ula field to which it was tied back.[3] The original estimated reserves at Oselvar were 38 million barrels of oil[4] and 4 e9m3 of natural gas.[5] The water depth at location is 72 m. In January 2022, DNO ASA reportedly had approval from Norway’s Petroleum Safety Authority (PSA) to remove subsea facilities from the Oselvar field. The Oselvar field installations were to be decommissioned by the end of 2022.[6]