North Sea oilfield shutdowns to rise on Brexit uncertainty

The pace of North Sea oilfield shutdowns is picking up as the impact of the market slump is compounded by the uncertain investment environment created by Brexit.

Projected spending on decommissioning in the British sector in the decade to 2024 has risen to £16.9 billion, according to Oil & Gas UK, an industry group. That’s 16 per cent higher than a 10-year forecast in 2014 as more sites are targeted for closing, it said.

The rout in crude to less than US$50 a barrel has left about 30 per cent of fields in the UK North Sea, one of the world’s highest-cost regions, operating at a loss, according to consulting firm Wood Mackenzie. The collapse was pushing more producers to hasten plugging wells on the sea floor even before the UK decision to leave the European Union.


“This has increased the number of fields we expect to cease in the near term, which has increased decommissioning costs,” said Fiona Legate, an analyst with Wood Mackenzie in Edinburgh. “There is a lot of political uncertainty in the UK following Brexit and this adds another complexity in investment decisions.”

About a third of operating platforms in the UK are more than 30 years old, which is beyond their original design life, Ms Legate said. While $100 oil justified technological upgrades to keep them running, that’s changing. Oil production in the region averaged 965,000 barrels a day last year, down from a peak of 2.9 million in 1999, according to BP data.

Wood Mackenzie expects spending on decommissioning, including removing steel structures offshore, to top £23bn in the decade to 2025. Budgets will triple to £2.8bn in 2018 from £899 million this year, it said. The estimate is so much higher than that of Oil & Gas UK because the costs are uncertain at this point, given how little decommissioning has taken place, the firm said.

Royal Dutch Shell, one of the biggest North Sea operators, is shutting down the Brent field, which since the 1970s has produced crude that helps set the global benchmark. Decommissioning has been going on for a decade and is likely to continue for another 10 years, according to Duncan Manning, who heads the programme for the Anglo-Dutch company.

Shell is now producing from just one of the four Brent platforms. Even after a full shutdown removes about 100,000 tonnes of metal, it would still potentially leave concrete columns half the size of the Eiffel Tower jutting from the water.

Fairfield Energy said last year it was starting to shut down its Dunlin field, given the asset’s life cycle, depressed oil prices and challenging conditions in the North Sea. Maersk Oil said 11 months ago it was seeking approval from UK Oil & Gas Authority to stop production from its Janice installation.

While oil prices have rebounded, the UK’s June 23 vote to leave the EU has further clouded the investment climate as the potential for a second independence vote looms in Scotland, which holds the bulk of Britain’s oilfields. A poll on Scottish independence from the UK was defeated in 2014, but after voters there overwhelmingly backed the losing side in the referendum on EU membership, a new vote is “very much on the table,” Scotland’s first minister Nicola Sturgeon said on June 26.

“Uncertainty may impact investment levels and lower investment can in turn potentially bring decommissioning forward for some fields,” said Kimberley Wood, a partner at law firm Norton Rose Fulbright LLP in London.

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