Johnston is a producing conventional gas field located in shallow water in the UK and is operated by Premier Oil E&P UK EU. The field is located in block 43/27a ALL and 43/26a RESIDUAL AREA EXCLUDING RAVENSPURN NORTH, with water depth of 156 feet.

Field participation details

The field is owned by Harbour Energy and Perenco Holdings.

Production from Johnston

The Johnston conventional gas field recovered 89.94% of its total recoverable reserves, with peak production in 2000. The peak production was approximately 64 Mmcfd of natural gas. Based on economic assumptions, production will continue until the field reaches its economic limit in 2042.

Remaining recoverable reserves

The field is expected to recover 4.63 Mmboe, comprised of 27.77 bcf of natural gas reserves.


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.