Here’s a number that stings if you’re British: £1 trillion. That’s roughly what Treasury modelling says the UK could have today. The catch? It would have needed to invest its North Sea oil and gas taxes the way Norway did. Instead, successive governments spent that money.
So on 21 October, Britain tried a different approach. Chancellor John Healey announced the UK Energy Wealth Fund. It takes tax revenue from North Sea oil and gas and puts it into clean energy at home, starting with £2 billion. And yes, it landed on the same day ministers cleared a new gas field. We’ll get to that part.
So what actually happened?
According to the official GOV.UK announcement, the new fund sits inside the existing National Wealth Fund. The government calls the first £2 billion a “downpayment” on the fund. After that, future North Sea revenues flow in over time.
The money goes into renewable and low-carbon energy infrastructure across the UK. Ministers want it to create skilled jobs across Scotland and the rest of the country. Healey put it simply. “I want Britain’s energy wealth to spark a new wave of clean power to work for the British people.”
But it came bundled with something else. That same day, the Energy Secretary cleared the way for gas production at the Jackdaw field. The government says Jackdaw could lift domestic gas output by about 6% at its peak. It also expects the field to add around £2.9 billion to the economy. Gas could start flowing as early as the end of October.
In other words, Britain said yes to more gas and yes to a clean energy fund in one breath. That’s not an accident, and we’ll come back to it.
The trillion-pound “what if”

To see why this matters, look across the North Sea to Norway. Its Government Pension Fund Global is worth roughly $2.4 trillion. It began in earnest in 1996 and invests overseas. Each year, Norway takes out around 3% of its value to help pay for public spending.
Britain had North Sea oil too. Yet it never built anything like that. As OilPrice reported, Treasury modelling shared with the BBC runs the numbers. About £200 billion in past North Sea tax receipts could have grown into a fund of roughly £1 trillion. That assumes Norway-like returns and no withdrawals at all. That’s the price of spending a windfall instead of saving it.
Healey admitted as much. North Sea wealth, in the Chancellor’s words, has “not been turned into the long-term investment our country needs.”
Honestly, that’s a rare thing for a finance minister to say out loud. It’s also a decent summary of the whole problem.
Okay, but is the UK Energy Wealth Fund new money?
Here’s where it gets less exciting. The BBC reported that the first £2 billion comes from moving money out of the existing National Wealth Fund. So it’s a new label on money the state had already set aside, at least to start with.
There are other gaps too. The announcement doesn’t say how much North Sea revenue will go into the fund each year. We also don’t know how it’ll pick projects.
Then there’s timing. OilPrice calls the North Sea a mature, declining basin. The BBC makes the same point, since energy tax revenue is forecast to fall as output drops.
Unlike Norway’s fund, this one invests at home rather than across global markets. That could help local jobs. Still, it limits how big the pot can realistically grow. OilPrice writer Charles Kennedy was blunt: “the opportunity to turn decades of North Sea production into a trillion-pound national fortune has largely passed.”
The gas field in the room
Now back to Jackdaw. As ESG Today noted, the government’s argument is simple. Even on the path to net zero, it says, the UK will still need oil and gas “for decades to come.” It also says Jackdaw won’t stop the UK from meeting its carbon limits or reaching net zero by 2050.
Britain has committed to no new exploration licences. Ministers argue Jackdaw fits that promise because it’s about managing existing fields for their lifespan. Meanwhile, industry group Offshore Energies UK welcomed the decision and asked for more approvals. It argues that “more than £50 billion in potential North Sea investment remains available.”
Our honest read? The fund makes the gas decision easier to defend. You could call it a sweetener, and you wouldn’t be totally wrong. That doesn’t make it a bad idea, though. Using fossil fuel money to pay for the next energy system is a pretty sensible trade. But only if the money actually shows up.
Why this matters if you’re not in Britain
For our readers in Armenia and other emerging markets, the lesson is mostly about timing. Norway started saving while its oil money was flowing. Britain is starting while its basin is running down. The difference is roughly a trillion pounds.
If your country earns money from mining, gas or any other natural resource, that’s worth sitting with. A fund doesn’t have to start big. In fact, Norway put in just 2 billion kroner about 30 years ago. The BBC notes that stake is now worth more than 1,000 times that amount.
Saving a slice of every good year sounds boring. But boring is exactly what compounding likes.
A domestic clean energy fund can also act as patient, public money that goes first. That’s the logic behind blended finance, where public capital takes early risk so private investors can follow. It’s a close cousin of green bonds, which raise debt for climate and social projects.
So, will the UK Energy Wealth Fund work?
It depends on two things nobody has spelled out yet. First, how much North Sea money keeps flowing in. Second, how quickly the fund spends it on real projects. If those answers turn out small and slow, £2 billion is a press release. If they’re big and fast, it could be the start of something useful. Two billion pounds is a start, not a strategy.
We’d also want clear reporting on what the fund backs and what it earns. Since this is public money, people deserve to see the scorecard.
Private money is already moving into this space, by the way. Just look at the Blackstone Energy Transition Fund. So the UK Energy Wealth Fund probably won’t be short of co-investors if it picks good projects.
Here’s the question we’d ask any resource-rich government today. What will you wish you’d saved, 30 years from now? Britain just answered that question about 50 years late.

