The UK’s gas reserves have reportedly dwindled to as little as two days’ worth of supply. New data attributed to transmission operator, National Gas, shows Britain’s gas stocks have shrunk from 18,000 GWh in 2025 to 6,700 GWh. That is said to be enough for one and a half days’ worth of supply.

A similar amount of liquefied natural gas is said to be in storage. In comparison, Europe has reserves expected to last several weeks, according to the Telegraph. Its report on UK gas supply comes as experts continue to sound the alarm over energy price rises amid the US-Israeli war against Iran.

A National Gas spokesperson said Britain obtains most of its gas from the North Sea and Norway, adding the country benefits from a wide range of gas supply sources. They said this provides the flexibility needed to balance supply and demand.

However, a report sent to the Government reportedly includes warnings about the need for more gas storage.

National Gas Chief Executive, Jon Butterworth, is reported to have told ministers Britain needs three new gas storage facilities or six barges to process LNG and transfer that gas into the system.

He warned declining production in the North Sea and changes in global energy markets increase the UK’s reliance on imports.

Extreme weather and a “more turbulent” geopolitical landscape also introduce “new risks” to energy security, he is reported as noting in the report.

A spokesperson for the Department for Energy Security and Net Zero said the Government is confident in the UK’s security of gas supply.

They added: “We are working with industry to ensure the gas system is fit for the future, including maintaining security of supply.”

The war in the Middle East led QatarEnergy to pause LNG production at its sites in the Gulf. Oil prices have also soared since the US and Israel attacked Iran on February 28, reaching its highest levels since 2023.

A barrel of Brent crude jumped 8.5% to $92.69 on Friday — up from nearly $70 a barrel late last week. Meanwhile, benchmark US crude climbed 12.2%, to $90.90 a barrel on Friday.

Iran has also warned ships not to use the Strait of Hormuz, a vital shipping route for about 20% of global oil and gas, adding further pressure to global energy markets.

Analysts at Cornwall Insight said forecasts for Ofgem’s price cap for July to September had surged to £1,801 a year for a typical dual fuel household – an increase of £160 or 10% on April’s cap announced last week.

Natasha Fielding, Head of Gas Pricing at Argus Media, which publishes commodity data, said the price of gas in the UK has increased by more than almost anywhere in Europe.

She added: “The UK gas hub price is now above the Dutch TTF [the main European gas hub] all the way from now until the end of May. Before this week, the UK was priced below the EU.”

Ms Fielding said this was partly due to the UK having “little” gas storage and being more exposed to price spikes.

The expert added: “We can’t rely on withdrawing more from storage so we have to get that gas from abroad.”

She said shortages were unlikely until next winter when the UK will compete with European countries to purchase the fossil fuel