Tolmount is a conventional gas development located in shallow water in the UK and is operated by Premier Oil E&P UK. Discovered in 2011, Tolmount lies in block 42/28d ALL, with water depth of around 180 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 2018. The development cost is expected to be $600 m. The Tolmount conventional gas development will involve the drilling of approximately four wells and includes fixed platform.

Field participation details

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

Production from Tolmount

Production from the Tolmount conventional gas development project is expected to begin in 2022 and is forecast to peak in 2022, to approximately 2,492 bpd of crude oil and condensate and 260 Mmcfd of natural gas. Based on economic assumptions, the production will continue until the field reaches its economic limit in 2044.

Remaining recoverable reserves

The field is expected to recover 97.85 Mmboe, comprised of 5.32 Mmbbl of crude oil & condensate and 555.14 bcf of natural gas reserves.

Contractors involved in the Tolmount conventional gas field

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

Design/FEED Engineering: John Wood Group

Main EPC: Rosetti Marino

EPC Contractors: Altrad Investment Authority

Other Contractors: Capstone Green Energy, DORIS Engineering, Fugro, Heerema Marine Contractors UK and Nag Konsalting


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.