The price of diesel in the United Kingdom has reached an unprecedented level, hitting 199.18 pence per litre, according to the RAC motoring organisation. This record high is primarily attributed to the ongoing conflict in the Middle East, which has significantly disrupted oil production and transportation.

This surge underscores the UK's vulnerability to global events, as fuel prices are increasingly influenced by geopolitical tensions far from its shores. The cost of diesel has climbed by approximately 40% since late February, when the conflict between the US and Israel and Iran escalated.

The previous record for diesel prices was set in June 2022, following Russia's full-scale invasion of Ukraine. The current price increase means that filling an average family car with diesel now costs £110, a rise of £31 since the conflict began. Petrol prices have also seen increases, costing 41p per litre more than at the start of the conflict, though they remain below their 2022 peak.

Experts warn that these higher fuel costs will inevitably impact consumers. Simon Williams, the RAC's head of policy, stated that the record diesel prices will cause financial strain not only for drivers but also for businesses and individuals who rely on goods and services transported by diesel-powered vehicles. He added that prices are unlikely to fall until there is a sustained period of lower oil prices.

The price of Brent crude, a global oil benchmark, has risen to around $108 per barrel, up from approximately $73 before the recent escalation of hostilities in the Middle East. The conflict has constrained international diesel supplies by limiting the flow of both crude oil and refined diesel to global markets. Further complicating supply, Russia has implemented an export ban on diesel following Ukrainian attacks on its refineries.

Diesel is a more complex fuel to refine than gasoline, and its demand is difficult to reduce due to its essential role in industries such as haulage and agriculture. The UK's reliance on imported diesel is a significant factor in its price volatility. While the UK's four refineries produce sufficient petrol to meet domestic demand, they do not generate enough diesel to cover the nation's needs.

Data from the Department for Transport shows that there were 15.1 million diesel vehicles on UK roads at the end of June, a slight decrease from the previous year. This figure includes 9.8 million diesel cars.

The RAC's data is compiled from average prices recorded at various supermarkets, motorway service stations, and independent retailers across the country.