Gas field · UK

Southwark

Southwark is a gas field in the southern North Sea, operated by IOG PLC. It was discovered in 2001 and produced. Production has ceased.

Open on the map All UK fields

Production

North Sea Transition Authority has no production reported for Southwark up to July 2026.

Field details

Status	Production ceased
Type	Gas field
Operator	IOG PLC
Partners	CalEnergy Resources (UK) Limited 50% CalEnergy SNS Limited 50%
Discovered	January 2001 (well 49/21-8a)
Water depth	37 m
Region	Southern North Sea
Wells inside the outline	4

Platforms and installations

Southwark JacketPlatform · Active · CalEnergy Gas (Holdings)

Licences

The field lies in this current licence:

P1915CalEnergy Gas (Holdings)

Nearby

Fields within 10 km: Leman (0.5 km), Vulcan (3.1 km), Europa (8.6 km).
Protected areas overlapping the field: North Norfolk Sandbanks and Saturn Reef SAC, Southern North Sea SAC.

Sources

Production: NSTA, UKCS field production reports (PPRS), monthly to July 2026. Field details, platforms, licences and wells: NSTA open data, as on the atlas map. Contains information provided by the North Sea Transition Authority and/or other third parties. Used under the NSTA Open User Licence.

Offshore Data Atlas converts the reported volumes to barrels and cubic metres a day (one cubic metre is 6.29 barrels). UK gas figures are all the gas produced, including gas used offshore as fuel, flared or put back into the reservoir.