It confirmed on Monday it had received approval to develop the Alligin field with the target of producing 12,000 barrels of oil equivalent at peak.
Alligin is part of the Greater Schiehallion area and is located in a water depth of almost 500 metres.
Alligin will consist of two wells, which will be tied-back into the existing Schiehallion and Loyal subsea infrastructure, using the processing and export facilities of the Glen Lyon floating production, storage and offload (FPSO) vessel.
BP North Sea regional president Ariel Flores said: “Alligin is part of our advantaged oil story, rescuing stranded reserves and tying them back into existing infrastructure.
“Developments like this have shorter project cycles, allowing us to bring on new production quicker. These subsea tiebacks complement our major start-ups and underpin BP’s commitment to the North Sea.”
As operator BP owns half of Alligin, the other half belongs to Shell. In January this year BP announced the discovery of Achmelvich, which is located near to the large Clair Ridge development.