Southwark is a conventional gas development located in shallow water in the UK and is operated by IOG Southern North Sea. According to GlobalData, who tracks more than 34,000 active and developing oil and gas fields worldwide, Southwark was discovered in 2001, lies in block 49/21c ALL, with water depth of around 100 feet. Buy the profile here.

The project is currently in commissioning stage and is expected to start commercial production in 2023. Final investment decision (FID) of the project was approved in 2019. The Southwark conventional gas development will involve the drilling of approximately three wells and includes wellhead platform.

Field participation details

The field is owned by Berkshire Hathaway Energy and Independent Oil and Gas.

Production from Southwark

Production from the Southwark conventional gas development project is expected to begin in 2023 and is forecast to peak in 2024, to approximately 24 bpd of crude oil and condensate and 43 Mmcfd of natural gas. Based on economic assumptions, the production will continue until the field reaches its economic limit in 2042.

Remaining recoverable reserves

The field is expected to recover 15.74 Mmboe, comprised of 0.07 Mmbbl of crude oil & condensate and 94.03 bcf of natural gas reserves.

Contractors involved in the Southwark conventional gas field

Some of the key contractors involved in the Southwark project as follows.

Design/FEED Engineering: John Wood Group and Heerema International Group Services

Main EPC: Subsea 7 and HSM Offshore

EPC Contractors: Heerema International Group Services and Proserv

Other Contractors: Noble, Petrofac, DORIS Engineering, London Offshore Consultants Group of Companies and Matre Maskin

About IOG Southern North Sea

IOG Southern North Sea Ltd (IOG Southern) is engaged in the exploration and production of oil and gas properties. IOG Southern is headquartered in London, Greater London, the UK.

For more details on the Southwark Conventional Gas Field, buy the profile here.


GlobalData, the leading provider of industry intelligence, provided the underlying research used to produce this article.

This information is drawn from GlobalData’s Oil & Gas Intelligence Center, which provides detailed profiles of 34,000+ oil and gas fields, 400,000+ exploration blocks, 1,100+ LNG terminals, 3,400+ gas processing plants, 5,000+ storage terminals, and 8,000+ pipelines, 1,400+ refineries and 13,000+ petrochemical plants worldwide.