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The North Sea Transition Authority is the competent authority for all onshore and offshore well activity including well decommissioning.

The North Sea Transition Authority is committed to ensuring the economic recovery of UK oil and gas and to enabling the achievement of the UK Government’s commitment to reach net zero emissions by 2050.

Decom Workgroups & Networks table 2024

Decommissioning North Sea oil and gas infrastructure remains a multibillion-pound opportunity for the UK economy and supply chain

Decommissioning Section Guidance - This section will appear for all Fields that do not yet have an approved Close Out Report from OPRED and once at organisational level.

updated December 2024

The cost of oil and gas decommissioning for the UK Continental Shelf (UKCS) has reduced from the 2017 baseline of £59.7bn

The total cost of decommissioning remaining UK offshore oil and gas production, transportation and processing infrastructure has reduced by 17%, on a like-for-like basis, to £49bn compared with a 2017 base-line estimate of £59.7bn

The total estimated cost of decommissioning UKCS upstream oil and gas infrastructure has fallen by a further £1.5bn to £44.5bn, representing an overall decrease of about £15bn (25%) since the baseline forecast and cost reduction target were introduced in 2017