European natural gas prices have surged to their highest levels in over three years amid renewed tensions in the Middle East and concerns about dwindling reserves ahead of the winter season. On Tuesday, benchmark gas prices in the Netherlands exceeded €75 (£64) per megawatt hour, levels not seen since early 2023 when energy markets were still adjusting to disruptions caused by Russia's invasion of Ukraine.
The price increase follows an escalation of hostilities between the United States and Iran, which threatens to prolong disruptions to liquefied natural gas (LNG) supplies passing through the Strait of Hormuz. This development has intensified anxiety across Europe, where gas storage volumes are significantly below average for this time of year.
Data indicates that European Union gas storage facilities were around 63-65% full at the end of August and early September, well below the five-year average of approximately 80-82%. Analysts warn these depleted reserves leave Europe exposed to potential supply shortfalls and price spikes should a cold winter or unexpected disruptions occur.
The United Kingdom's situation is particularly acute. Its gas storage capacity is notably lower than most European countries, currently about 31% full, containing roughly three gigawatt hours of gas in storage. By contrast, Germany holds nearly 131 gigawatt hours, approximately 44 times the UK’s volume. This limited capacity, coupled with the UK's increased dependence on LNG imports amid phased reductions in domestic North Sea production, heightens vulnerability to global market volatility.
The Rough gas storage facility in the North Sea, owned by Centrica and representing nearly half of the UK's storage capacity, remains nearly empty. Although partially reopened in 2022 following the surge in gas prices triggered by the Ukraine conflict, it has not been restocked this year due to sustained high wholesale prices and market uncertainty. Centrica’s chief executive, Chris O’Shea, stated that current market conditions do not make it financially viable to inject gas into the site. Without government support or a new agreement, the facility is expected to close by April next year, removing a crucial buffer against supply shocks.
Energy market experts highlight the risk of severe price volatility if gas demand rises sharply or supply is further constrained. Analysts caution that only a mild winter would prevent further increases, while colder conditions could drive prices even higher. The UK energy regulator Ofgem announced a £60 average increase in annual household energy bills from October, with the potential for additional rises early next year, largely attributed to elevated gas prices.
Some commentators note that European countries' hesitation to refill gas stores fully over the summer was partly due to expectations that the Middle East tensions would ease, allowing prices to fall before stockpiling. This optimism has since been challenged, increasing the likelihood that consumers will face higher costs this winter.
Meanwhile, Brent crude oil prices also rose modestly amid these developments, highlighting broader energy market tensions amidst ongoing inflationary concerns and economic uncertainties.