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December 7, 2021

Sillimanite (UK) Conventional Gas Field, UK

By Carmen

Sillimanite (UK) is a producing conventional gas field located in shallow water in the UK and is operated by Wintershall Noordzee. The field is located in block 44/19a ALL, with water depth of 95 feet.

Field participation details

The field is owned by Gazprom, BASF, ONE-Dyas, Neptune Energy Group and LetterOne Holdings.

Production from Sillimanite (UK)

The Sillimanite (UK) conventional gas field recovered 8.31% of its total recoverable reserves, with peak production expected in 2021. The peak production was approximately 9.47 thousand bpd of crude oil and condensate and 77 Mmcfd of natural gas. Based on economic assumptions, production will continue until the field reaches its economic limit in 2046. The field currently accounts for approximately 1% of the country’s daily output.

Remaining recoverable reserves

The field is expected to recover 52.98 Mmboe, comprised of 21.97 Mmbbl of crude oil & condensate and 186.05 bcf of natural gas reserves. Sillimanite (UK) conventional gas field reserves accounts 0.02% of total remaining reserves of producing conventional gas fields globally.

About Wintershall Noordzee

Wintershall Noordzee BV (Wintershall Noordzee) is an upstream oil and gas company that specializes in offshore exploration, development and production. It has production platforms and subsea wells across Dutch sector of the Southern North Sea. The company has a portfolio of assets covering the offshore areas of The Netherlands, Germany, the UK and Denmark. Wintershall Noordzee also has expertise in drilling, field development, production operations and business development. The company also operates WestGas Transport (WGT) gas transportation pipeline and a gas processing facility in Ijmuiden. It operates as a joint venture between Wintershall Nederland BV and Gazprom E&P International BV. Wintershall Noordzee is headquartered in Rijswijk, South Holland, the Netherlands.


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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