The price of diesel on UK forecourts has hit an all-time high average of 199.18p a litre, as the conflict in the Middle East continues to drive the cost of fuel to record levels. The price, which previously peaked at 199.09p in June 2022 after Russia’s invasion of Ukraine, could soon top the £2 mark after Donald Trump rejected Iran’s proposal for a seven-day peace deal to reopen the critical oil and gas shipping route through the strait of Hormuz. The RAC estimates that the cost of filling an average family car with diesel is now almost £110, £31 more than it was at the start of the Iran war, a rise of 40% since 28 February.
Undoubtedly, these increased costs will be passed on to consumers.” The cost of petrol is also continuing to rise, with the average price of a litre hitting 174.13p on average, 41p more than at the start of the war and an increase of 31% since 28 February. The cost of filling a full tank is nearly £96, according to the RAC. Trump has said he is “very seriously” considering a US diesel export ban to try to curb soaring prices, and has urged Ukraine’s president, Volodymyr Zelenskyy, to pause strikes on Russian oil refineries over concerns that they could further push up prices.
Output from Russia’s war-damaged refineries has fallen by almost a third over the past year to reach a 20-year low following sustained drone attacks by Ukraine, according to the International Energy Agency. It hit a peak of $126 a barrel in April, before dipping to $71 at the start of July on hopes of a peace deal. The price of oil climbed by more than 3% on Monday to $108.
In August, the Competition and Markets Authority published a report that found that many petrol stations were too slow to pass on falls in wholesale energy prices to their customers. The UK competition watchdog said that, while costs overall fell at fuel pumps in June, prices remained significantly higher than before the Middle East conflict, and retailer profit margins were either at or above the historically high levels of 2025. However, it did not find any evidence of profiteering by fuel retailers on the back of the Iran conflict.
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