Seventeen operators have committed to share vessels and coordinate work programmes under a charter signed with the North Sea Transition Authority (NSTA), aimed at clearing the well decommissioning backlog on the UK Continental Shelf at lower cost, World Oil reported.
Roughly GBP 200 million could be saved on remaining subsea wellhead removal, a cut of about 30%, if operators deploy vessels rather than rigs for the final removal step, according to industry estimates cited by World Oil.
Pauline Innes, NSTA supply chain and decommissioning director, said the plan "has the potential to be a win-win-win for operators, suppliers and taxpayers".
The queue behind the charter is substantial. More than 1,000 wells are expected to require decommissioning over the coming five years, on top of some 500 inactive wells already waiting on final abandonment, World Oil reported.
Work touched 257 wells during 2025, and 114 of those reached final abandonment, according to the NSTA's latest UKCS Decommissioning Cost and Performance Update. Both counts were higher than the previous year, when operators worked 238 wells and completed 103 final abandonments.
Decommissioning spending across the UKCS set a record at GBP 2.6 billion in 2025, against GBP 2.4 billion the year before, per World Oil.
Higher spending has done little to the total bill. The NSTA now puts the cost of remaining UKCS decommissioning at GBP 43.4 billion, down marginally from GBP 43.6 billion.