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Nelson platform in the North Sea

Upstream oil and gas

In the UK sector of the North Sea, Shell operates the SEGAL (Shell & Exxon Gas & Associated Liquids) system, which includes Shell St Fergus Gas Terminal, Shell Fife Natural Gas Liquids (NGLs) Plant and Braefoot Bay Marine Terminal. We operate Shell Bacton Gas Terminal and production from eleven offshore fields including via the Clipper and Leman Alpha installations. We also have a portfolio of decommissioning activities including our Brent Decommissioning Programme.

Shell and Equinor combined their UK offshore oil and gas business to form Adura in December 2025 www.adura.com

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In this section

Shearwater platform North Sea

North Sea operated assets

Discover more about Shell’s oil and gas operated assets in the North Sea including capacity and facilities information.

St Fergus Gas Terminal

SEGAL system

The SEGAL system is made up of two wet gas transportation pipelines, the St. Fergus gas terminal, Fife NGL terminal and Braefoot Baytanker loading facility.

Shearwater platform in the North Sea

Published key terms

Data published in accordance with the Code of Practice on Access to Upstream Oil and Gas Infrastructure on the UK Continental Shelf (ICOP) and the Gas Act (1995).

Employee walking along gas infrastructure

Contracting and procurement

Documents provided by the Contracting and Procurement Management group for information and guidance on how to do business with us.

Featured content

Our operations focus on the North Sea – men on a North Sea platform

Meeting today’s demand

Shell is a major energy producer in the UK and produces oil and gas from more than 50 interests in the North Sea. We produce around 10% of the country’s oil and gas.

Decommissioning

Decommissioning

When oil and gas fields end production, their facilities need to be dismantled and disposed of - or "decommissioned". Learn about decommissioning at Shell.