Sean is a producing conventional gas field located in shallow water in the UK and is operated by One-Dyas UK. The field is located in block 49/25a ALL and 49/24e ALL, with water depth of 104 feet.

Field participation details

The field is owned by Viaro Energy and ONE-Dyas.

Production from Sean

The Sean conventional gas field recovered 99.71% of its total recoverable reserves, with peak production in 2012. The peak production was approximately 0.12 thousand bpd of crude oil and condensate and 277 Mmcfd of natural gas. Based on economic assumptions, production will continue until the field reaches its economic limit in 2025.

Remaining recoverable reserves

The field is expected to recover 0.36 Mmboe, comprised of 0.01 Mmbbl of crude oil & condensate and 2.14 bcf of natural gas reserves.

About One-Dyas UK

Oranje-Nassau Energie Resources Ltd (Oranje-Nassau Energie Resources), formerly Sterling Resources (UK) Plc., a subsidiary of Sterling Resources Ltd is an oil and gas company that carries out the exploration, production and development of crude oil and natural gas. The company’s offshore assets are located in Northern North Sea, Central North Sea and Southern North Sea. Its onshore assets are based in Cleveland Basin and holds interests in three onshore basins, and also in southern England and one in northeast England. The company focuses on the basins with recognized hydrocarbon potential. Sterling Resources UK is headquartered in Aberdeen, 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.