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BP receives OGA approval to develop Alligin field in North Sea

BP has confirmed it has received approval from the Oil and Gas Authority (OGA) to proceed with the Alligin development west of Shetland, which will target 20 million BOE and is expected to produce 12,000 BOED at peak.

The Alligin development will consist of two wells, which will be tied back into the existing Schiehallion and Loyal subsea infrastructure, utilizing the processing and export facilities of the Glen Lyon floating, production storage, offload vessel.

Alligin is located 140 kilometres west of Shetland in a water depth of 475 metres. It forms part of the Greater Schiehallion Area.
Alligin is located 140 kilometers west of Shetland in a water depth of 475 meters. It forms part of the Greater Schiehallion Area.

It is expected to come on stream in 2020.

The development will include new subsea infrastructure, consisting of gas lift and water injection pipeline systems, and a new controls umbilical. The wells will be drilled by the Deepsea Aberdeen rig.

Alligin (BP 50% operator; Shell 50%) is part of a series of infrastructure-led subsea tie back developments in the North Sea, accessing new production from fields located near established producing infrastructure.

“We announced our intention to develop Alligin in April, and six months later we have achieved regulatory approval,” Ariel Flores, BP North Sea Regional President, said. “Always maintaining our focus on safety, we are modernizing and transforming how we work in the North Sea to fully realize the potential of our portfolio.”

“Alligin is part of our advantaged oil story, rescuing stranded reserves and tying them back into existing infrastructure,” Ms Flores said. “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.”

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