British diesel prices reached an all-time record of £2 per litre on 2 October 2026, driven by supply disruptions linked to the US-Israel conflict with Iran affecting crude oil and refined product flows from the Gulf region. The sharp increase has developed since late February 2026 and is bearing on motorists and small businesses across the UK economy.
The record price level emerged alongside broader crude oil market pressure, with WTI and Brent crude — the international benchmark contracts underpinning diesel refining costs — having surged above $100 per barrel in September, according to reporting on the wider supply environment. Ultra-low sulphur diesel and gasoil contracts, which directly price road and heating diesel in European markets, reflected the tightening supply conditions.
The UK Energy Secretary Miatta Fahnbulleh held emergency talks with US Energy Secretary Chris Wright on 1 October 2026 regarding potential Trump administration restrictions on diesel exports to Europe, which have been threatened as a lever to reduce US domestic fuel costs — themselves reported up 70% year-on-year. The UK is simultaneously in discussions with EU partners about releasing strategic fuel reserves, with the European Commission confirming multiple high-level meetings are underway.
Sources: Guardian Business, Cnbc TOP, Oilprice, Marketwatch TOP, SKY Business, OilPrice, BBC Business, FT Home, FT Companies, Bloomberg Markets