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November 23, 2021updated 28 Apr 2022 5:44am

Southwark Conventional Gas Field, UK

By Carmen

Southwark is a conventional gas development located in shallow water in the UK and is operated by IOG Southern North Sea. Discovered in 2001, Southwark lies in block 49/21c ALL, with water depth of around 95 feet.

The project is currently in commissioning stage and is expected to start commercial production in 2022. 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 Independent Oil and Gas and Berkshire Hathaway Energy.

Production from Southwark

Production from the Southwark conventional gas development project is expected to begin in 2022 and is forecast to peak in 2023, to approximately 35 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 2041.

Remaining recoverable reserves

The field is expected to recover 15.76 Mmboe, comprised of 0.08 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: Heerema International Group Services and John Wood Group

Main EPC: HSM Offshore and Subsea 7

EPC Contractors: Heerema International Group Services and Proserv

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

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.


Information on the field is sourced from GlobalData’s fields database that provides detailed information on all producing, announced and planned oil and gas fields globally. Not all companies mentioned in the article may be currently existing due to their merger or acquisition or business closure.

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