The Dana-operated Western Isles produced 36 million boe from two oil fields. Harris and Barra are located in the Northern North Sea, 160km east of Shetland and 12km west of Tern field.
The original project involved a subsea development of production and water injection wells tied back to a floating production, storage, and offloading vessel (FPSO) with oil export using shuttle tankers.
Western Isles cessated production (COP) on 6 May 2024.