The United Kingdom is taking diplomatic steps to prevent a possible United States ban on diesel exports, amid growing concerns that restrictions on American fuel shipments could intensify supply pressures and push prices higher across Britain and Europe.
UK Chancellor John Healey said the government is in discussions with US authorities over the potential export restrictions and is also preparing contingency measures should Washington proceed with a ban. Healey said the UK is working with the United States to find ways of easing pressure on fuel markets while maintaining domestic supplies.
The issue has become increasingly urgent as diesel prices have climbed sharply in recent weeks. The RAC reported that the average UK diesel price reached a new record of 199.18 pence per litre on Monday, exceeding the previous record recorded in 2022 following Russia's full-scale invasion of Ukraine. Petrol prices have also risen, although diesel has experienced particularly severe pressure.
The proposed US restrictions are being considered as Washington faces pressure over high domestic fuel costs. President Donald Trump has backed the idea of restricting diesel exports, while officials in his administration have indicated that the details and feasibility of such a measure are still being examined. US Energy Secretary Chris Wright has also expressed opposition to an outright export ban, warning that a blanket restriction could create wider problems for the energy market.
For Britain, the prospect of losing American diesel supplies is particularly significant. The US has become an important source of diesel for the UK as European energy markets have adjusted to reduced supplies from Russia and disruptions affecting producers and transport routes in the Middle East. S&P Global estimates that US diesel shipments to Europe were on course to reach about 360,000 barrels per day during the third quarter of 2026, compared with roughly 250,000 barrels per day before the current Middle East conflict.
A prolonged export restriction could therefore force British and European buyers to compete more aggressively for alternative supplies from other producing countries. Analysts have warned that such competition could place additional upward pressure on wholesale fuel prices, although an immediate shortage at British filling stations is not considered inevitable. The UK government has said its fuel supply remains diverse and resilient.
The wider energy crisis has been compounded by disruption associated with the conflicts involving Iran and Ukraine. Reduced availability from some major oil-producing regions has tightened international fuel markets at a time when demand remains strong.
Healey said the government is also considering the potential impact on households and businesses as it prepares its upcoming Budget. Higher diesel costs could affect motorists directly, but the consequences extend much further, because diesel is heavily used by freight companies, farmers, construction businesses and other industries that depend on road transport.
For now, the situation remains uncertain. Washington has not finalized a comprehensive diesel export ban, while the UK continues discussions with American officials and prepares for possible disruption. The outcome of those talks could have significant implications for fuel prices, transport costs and energy security across Britain in the weeks ahead.