UKOilWatch — UK Fuel Reserve & Price Intelligence

The latest DESNZ stock data for March 2026 shows UK fuel reserves at critically low levels across all tracked product categories. Diesel (DERV and Gas Oil) is the most acute concern at just 18.8 days of supply — representing only around one-fifth of the UK's 90-day IEA obligation. Petrol stands at 28.3 days, jet fuel at 33.1 days, and heating oil at 22.8 days, yielding a blended average of 25.8 days. In practical terms, these figures indicate that if import and refinery flows were to stop entirely, the UK would exhaust diesel stocks in under three weeks based on March consumption rates of approximately 2,010 kt per month. For logistics operators and procurement teams, the diesel figure warrants particular attention. The UK sources roughly 40% of its diesel from Netherlands and Belgium refineries, meaning any disruption to ARA (Amsterdam-Rotterdam-Antwerp) refinery output or cross-Channel supply routes would have a disproportionate impact on road freight, public transport, and agricultural operations. At current stock levels, the buffer against such a disruption is narrow. It is important to note a material data limitation: these figures reflect a three-month reporting lag, meaning they describe conditions as of March 2026, not today (June 2026). Stocks may have been replenished, drawn down further, or stabilised in the intervening period. The concurrent fall in pump prices — diesel down 5.08p week-on-week to 176.71p/L, with Brent crude at $79.23/barrel — could indicate easing upstream supply pressure or softening demand, but pump prices alone are not a reliable proxy for physical stock levels. Journalists and policymakers should treat the 'critical' classification with appropriate context: it reflects a structural reporting snapshot, not necessarily an active supply emergency. The gap between reported stocks and the IEA 90-day threshold is nonetheless substantial and consistent across all four product categories, which warrants monitoring as updated data becomes available. The total UK stock figure in the raw dataset was recorded as zero thousand tonnes, which appears to be a data aggregation anomaly and should not be interpreted at face value.