Tolmount East is a conventional gas development located in shallow water in the UK and is operated by Premier Oil E&P UK. According to GlobalData, who tracks more than 34,000 active and developing oil and gas fields worldwide, Tolmount East was discovered in 1973, lies in block 42/28d ALL, with water depth of around 175 feet. Buy the profile here.

The project is currently in approval stage and is expected to start commercial production in 2024. Final investment decision (FID) of the project was approved in 2021. The Tolmount East conventional gas development will involve the drilling of approximately one wells and includes subsea manifold and subsea trees.

Field participation details

The field is owned by Harbour Energy and Korea National Oil.

Production from Tolmount East

Production from the Tolmount East conventional gas development project is expected to begin in 2023 and is forecast to peak in 2025, to approximately 2,135 bpd of crude oil and condensate and 115 Mmcfd of natural gas. Based on economic assumptions, the production will continue until the field reaches its economic limit in 2048.

Remaining recoverable reserves

The field is expected to recover 53.50 Mmboe, comprised of 5.35 Mmbbl of crude oil & condensate and 288.90 bcf of natural gas reserves.

For more details on the Tolmount East 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.