North Sea Gas Fields Reopen: What You Need to Know

This year, Norway’s Energy Ministry approved the reopening of three old gas fields in the North Sea. Not new fields. Old ones — fields that had already been drilled, drained, and left behind for nearly three decades. That decision tells you everything about where Europe’s energy crisis has arrived.

But the politics and the panic are only the surface story. Underneath is something far older and stranger: a body of water that has powered empires, shaped coastlines, and quietly become one of the most contested stretches of ocean on Earth.

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What the North Sea Actually Is

Geologically, the North Sea is barely a sea at all. It sits on the continental shelf — relatively shallow, storm-battered, and wedged between Britain, Norway, Denmark, Germany, the Netherlands, Belgium, and France. For most of human history, it was a highway for trade, a hunting ground for fishing fleets, and a graveyard for ships caught in its notoriously violent weather.

Then, in the second half of the twentieth century, everything changed. Drillers found oil and gas beneath the seabed in quantities that rewrote the economic futures of both Britain and Norway. The UK Continental Shelf — the UKCS — became one of the most productive energy zones in the world. For decades, a handful of enormous fields did most of the heavy lifting, pumping out volumes that kept the lights on across northern Europe.

That era is over. Production now comes from a far greater number of smaller fields, spread across a wider area. The giants are gone. What’s left is a patchwork — and a growing question about how long even that patchwork can last.

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The Three Norwegian Fields Coming Back

The three fields Norway has approved for reopening are Albuskjell, Vest Ekofisk, and Tommeliten Gamma — all located in the southern North Sea, off the coast of southern Norway, near the giant Ekofisk reserve. Each of them was shut down around 1998, judged to be no longer worth the cost of running. They are coming back because the calculation has changed.

Norway’s Labour-run government, led by Prime Minister Jonas Gahr Støre, approved the development plans in 2026 — a decision made against the explicit advice of the country’s own environment agency, and one that has infuriated left-leaning parties across the political spectrum. Støre himself acknowledged the weight of the moment, stating simply: “We live in troubled times.” That detail matters. This is not a government that ignored the question of environmental cost. It heard the advice, weighed it, and went the other way.

The numbers behind the decision are significant. Norway plans to spend 19 billion kroner — roughly £1.5 billion — on restarting the three fields, with the goal of having them operational by the end of 2028, nearly three decades after they last pumped gas. Once running, production is expected to continue until 2048.

Alongside the reopening of the three dormant fields, Norway’s 2026 approvals went considerably further. The government also greenlit oil and gas companies to explore in 70 new locations spanning the North Sea, the Barents Sea, and the Norwegian Sea. That is not a cautious, incremental step. It is a broad expansion of Norway’s fossil fuel ambitions at a moment when the rest of Europe is still debating the pace of its energy transition.

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Britain Is Moving in the Same Direction

Norway is not acting alone. Across the median line, the UK government has been making its own set of decisions that point in a strikingly similar direction.

BP is reviving the Murlach field, located roughly 120 miles east of Aberdeen — a field that was declared uneconomic and taken out of use back in 2004. The numbers BP has put forward are specific: the field contains an estimated 20 million barrels of recoverable oil and 600 million cubic metres of gas, enough to sustain production for approximately 11 years. At peak output, Murlach is expected to produce around 20,000 barrels of oil and 17 million cubic feet of gas per day. Like the Norwegian fields, it was written off once. Like them, it is being written back in.

The UK government has also approved drilling at the Jackdaw gas field in the North Sea, off the coast of Aberdeen. Jackdaw had its own complicated regulatory history before finally receiving the green light. Its approval, alongside Murlach, signals that Britain’s position on North Sea development has hardened considerably in favour of extraction.

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What This Moment Actually Means

Taken together, these decisions — Norway’s three reopened fields, its 70 new exploration licences, BP’s Murlach revival, and the Jackdaw approval — form a pattern. Governments and energy companies that spent years talking about managed decline in the North Sea are now moving in the opposite direction. Fields that were shut because they were uneconomic have become economic again. Exploration that was winding down is expanding.

The reasons are not difficult to find. Europe’s energy security anxieties, sharpened dramatically in recent years, have shifted the political calculus in ways that environmental advice alone cannot override. Støre’s phrase — “we live in troubled times” — is doing a lot of work. It is the justification that makes the uncomfortable decision speakable.

What it does not resolve is the longer question: whether reopening old fields and drilling new ones is a bridge to something else, or simply a return to the path that was never really abandoned. The North Sea has answered that question before, in its own slow, geological way. It is answering it again now.