Taxes, high oil prices push UK North Sea M&A to strongest year since 2022

LONDON — Tax advantages and elevated energy prices are set to drive further consolidation across Britain's North Sea oil and gas fields after a year of heavy deal activity, according to 11 industry analysts and bankers who spoke to Reuters.

Oil and gas mergers and acquisitions involving a UK target or buyer reached $19.6 billion year-to-date, surpassing the $16.5 billion recorded for all of 2025, per LSEG data. That makes 2026 the strongest year for activity since at least 2022, when Russia's full-scale invasion of Ukraine triggered a previous energy crisis.

The deal flow comes as prices for oil and gas hit multiyear highs, driven by disruption linked to the US-Israeli war with Iran. That has generated substantial cash for producers reporting results this week. But the same price rises have stoked inflation across the economy, sharpening the industry's appetite for scale to justify production in the mature North Sea Basin — a basin the British government views as a secure, domestic supply source.

A concentrated buyer pool

James McCormack of investment bank and research firm Cavendish said the pool of potential buyers was relatively small, but that did not preclude more deals. He described the UK North Sea as "an increasingly concentrated market when it comes to credible buyers with the balance sheet, tax capacity and decommissioning capability to execute material deals."

Cavendish, in a report published in September, said the pressure was on for mergers given the especially high relative costs in ageing fields. "Companies that can offer diversification, liquidity and development capital are attracting premium valuations, while sub-scale operators face growing pressure to merge, seek capital in deeper markets, or accept takeover approaches," the report said.

Alexander Franke, an energy consultant at Oliver Wyman, also predicted the need to contain costs would drive more activity, with the caveat that the pace would depend on the oil price outlook. Any unexpected fall in prices could deter buyers, while sustained rises could boost cash flow and funding for acquisitions.

Tax regime adds to the case for deals

British taxes are a further incentive to maximise efficiency, the analysts and bankers said. An Energy Profits Levy, introduced by the previous Conservative government and increased under the current Labour government, has pushed the headline tax rate on UK upstream oil and gas activities to 78%.

"There's been a lot of tax-driven consolidation in recent years," said Greig Aitken, director of corporate research at Wood Mackenzie.

Tony White of advisory firm MKI highlighted the scale advantage in a tax context: "There's still a rationale for two UK North Sea players to combine, so that the enlarged company can take advantage of the tax credits as well as operational synergies."

Policy uncertainty complicates decisions

Beyond price volatility, investment decisions are complicated by shifting government policy. The British government has reiterated its commitment to achieving net-zero greenhouse gas emissions by 2050, yet approved earlier this month the development of the Jackdaw North Sea gas field. The decision followed years of debate, with environmental campaigners arguing there was no justification for investment in fossil fuel production, while supporters cited jobs and a domestic source of natural gas at less environmental cost than imported supplies.

In its autumn budget statement on Wednesday, the government reaffirmed its long-term commitment to keeping oil and gas in the energy mix, though it announced no new measures for the industry.

BP's North Sea exit looms

The biggest oil companies have been withdrawing from the ageing North Sea for years to focus on larger prospects elsewhere. Shell has opted to manage its remaining exposure through partnerships and joint ventures, including the creation of Adura with Norway's Equinor.

BP, the last major with a significant North Sea focus, announced plans in July to sell its oil and gas fields in the basin as part of a portfolio overhaul to improve profitability. Analysts have estimated the sale could raise $2 billion and trigger another wave of consolidation.

"Most likely the buyer is another North Sea consolidator. Value will be driven by infrastructure and tax synergies rather than by reserves alone," Cavendish's McCormack said, naming UK companies EnQuest, NEO NEXT+ and Ithaca as possible buyers. The next round of bidding will be in December, one person with knowledge of the process said.

BP had no further comment. EnQuest CEO Amjad Bseisu has said he is interested in the assets; the company had no further comment. Ithaca declined to comment, while NEO NEXT+ did not respond to a Reuters request for comment.

A broader consolidation cycle

UK-listed companies have drawn rival bids, including from international buyers. London-listed Genel Energy in September raised its offer to $436 million for Britain's Capricorn Energy, outbidding Norway's DNO. Israel's Ratio Petroleum outbid Serica Energy with a sweetened $196 million offer for Pharos Energy in August. Serica said it continues to evaluate acquisition opportunities in both the UK North Sea and international markets.

This month, Gulf Keystone Petroleum and ShaMaran Petroleum announced a $601 million all-share merger, while Ithaca agreed to buy three offshore oil assets from Canada's Suncor for C$1.2 billion ($853.49 million).