The Smith School of Enterprise and the Environment at Oxford University has published an analysis that cuts directly to a question every UK homeowner should care about: will more North Sea oil and gas lower your bills, or raise them?
As reported by the Smith School study, a so-called “drill baby drill” approach to the North Sea would actually increase household energy costs compared to a fully renewable UK grid. The finding contradicts the political pitch that domestic fossil fuel extraction is a route to cheaper energy for families.
Why this matters to your annual energy bill
The average UK household spent roughly £1,800 on gas and electricity in 2023, according to Ofgem data. The Oxford modelling suggests that under a high-fossil scenario, new licences, maximum extraction, wholesale electricity prices would remain tied to volatile global gas markets. That means your tariff stays exposed to the same geopolitical shocks that drove bills up 80% in 2021–22.
A fully renewable system, by contrast, decouples power prices from gas. The study estimates that even accounting for grid upgrades and storage, a net-zero electricity system would deliver lower wholesale costs by the early 2030s. For a typical 3-bed semi using 12,000 kWh of gas and 2,900 kWh of electricity, the difference could be £150–£250 a year off the bill.
The catch is that those savings depend on policy staying the course. Every new North Sea licence delays the transition and locks in infrastructure costs that ratepayers ultimately fund through network charges.
Who pays for the drilling, and who benefits
The Treasury collects around £4 billion a year in petroleum revenue tax and corporation tax from North Sea operators. That money, in theory, could fund grants for heat pumps or home insulation. But the Oxford analysis points out that the net economic benefit of extraction shrinks once you factor in the climate damage and the cost of stranded assets, rigs and pipelines that become useless as the world moves away from oil.
Households, meanwhile, bear the cost through higher bills and through their council tax contributions to local grid upgrades needed to connect new offshore fields. The Energy Saving Trust has long noted that the cheapest unit of energy is the one you don’t use, and that insulation and efficient heat pumps offer far better returns than subsidising exploration.
What this means for your home upgrade plans
If you are weighing a heat pump installation, solar panels, or better loft insulation, the Oxford study provides a clear signal: the direction of travel is towards electrification and renewables. Every £1,000 you invest in your home’s energy efficiency today reduces your exposure to the very gas prices that the “drill baby drill” approach would keep elevated.
The government’s Boiler Upgrade Scheme offers £7,500 off a heat pump installation. Solar panel payback periods are already below 10 years for many homes. And with network charges set to be restructured in 2025 to favour off-peak electricity use, the economics of electrification will only improve.
The study’s bottom line for homeowners: don’t bet your budget on cheap North Sea gas. The data says it won’t arrive. Instead, use the current grants and falling technology costs to cut your fossil fuel dependence now.
Frequently Asked Questions
No, according to the Oxford Smith School analysis. Expanding North Sea oil and gas production would keep UK electricity prices tied to volatile global gas markets, likely leading to higher household bills compared to a fully renewable grid.
Invest in energy efficiency measures such as loft insulation, cavity wall insulation, and draught-proofing. Consider a heat pump through the Boiler Upgrade Scheme (£7,500 grant) or solar panels. These upgrades reduce your gas consumption and shield you from fossil fuel price spikes.
