Wednesday, 10 June 2026
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North Sea Oil Windfall Tax Extended as Energy Giants Face Higher Levies

James Gallagher
James Gallagher
Oil rig platform in the North Sea at sunset with industrial structures

The windfall tax on North Sea oil and gas producers has been extended until 2029. Photo: Reliable News

The government has confirmed an extension of the windfall tax on North Sea oil and gas producers, raising the levy rate from 35% to 38% and pushing the sunset clause back from 2028 to 2029.

The announcement, made during the Autumn Statement, is expected to raise an additional £2.3 billion for the Treasury over the next three years. The funds have been earmarked for renewable energy investment and household energy bill support.

Industry Reaction

The oil and gas industry has responded with strong criticism, arguing that the extended tax will deter investment in North Sea production and accelerate the decline of the UK's domestic energy sector.

David Whitehouse, chief executive of Offshore Energies UK, said: This is a tax on investment. Every pound taken in additional tax is a pound that will not be invested in UK energy production. At a time when energy security is paramount, this policy is counterproductive.

Government Position

The Treasury has defended the extension, pointing to record profits made by oil and gas companies in recent years. A Treasury spokesperson said: The energy sector has benefited from exceptional profits driven by global market conditions. It is right that these companies contribute more to support the transition to clean energy and help households with their energy bills.

Impact on Investment

Industry analysts have warned that the extended tax could lead to a reduction in North Sea investment of up to £4 billion over the next five years. Several major operators have already signalled that they are reviewing their investment plans in light of the tax changes.

However, the government has included an investment allowance in the tax, meaning companies can reduce their tax liability by investing in UK energy production. The effectiveness of this allowance in maintaining investment levels remains to be seen.

Energy Transition Context

The extended windfall tax forms part of the government's broader strategy to fund the transition to net-zero emissions. Revenue from the tax will contribute to the government's flagship clean energy investment programme.

James Gallagher
James Gallagher

Managing Editor

James Gallagher is Managing Editor at Reliable News, overseeing daily news operations. He has reported from Westminster for over a decade and specialises in political and investigative journalism.

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