NEW YORK / RankWire.AI / – Fuel inventories in the United States and Europe remain constrained as refinery disruptions and reduced stock levels limit the availability of finished diesel. On Monday, U.S. ultra-low sulfur diesel futures surged 7.4% to $4.19 a gallon, marking the largest daily increase since July 13, and early Wednesday saw the contract trading close to $4.28 a gallon. Meanwhile, European diesel refining margins stayed near record levels after gaining nearly 10% at the start of the week.
Distillate stocks, which include diesel and heating oil, have fallen to summer-low levels not often seen, with the U.S. Energy Information Administration reporting 107.2 million barrels of distillate stocks for the week ending July 31—a decline of 3.5 million barrels from the previous week. This total is 5.1% below the same period last year and 16.1% beneath the same timeframe in 2024, highlighting the tight fuel supply situation.
Retail diesel prices across the U.S. have also stayed significantly above early summer levels, with the national average reaching $5.257 per gallon on August 10, compared to $5.348 a week earlier. In contrast, prices averaged $4.578 per gallon on July 6. Europe faces similar pressures from higher refining costs, with the premium for low-sulfur gasoil over crude hitting a record $74.66 a barrel on July 30, underscoring the high value placed on finished diesel supplies.
Refinery outages intensify fuel supply concerns
The market’s strain has intensified due to several major refineries operating below normal capacity, with recent disruptions including an attack on a refinery in Russia’s Tatarstan region, which added to the decline in Russian processing activity. Since July 27, Saudi Arabia’s Jazan refinery has been offline following an earlier attack, removing another source of refined products from global trade. During June, refinery runs worldwide were already significantly below last year’s levels, with many regions reporting lower processing volumes.
Additional export restrictions have further worsened supply issues. Russia extended bans on gasoline and diesel exports until January 31, 2027, while vessel traffic through the Strait of Hormuz from the Middle East has decreased. China has contributed less refined fuel to global markets due to weaker domestic refinery activity. In Europe, the European Central Bank noted diesel pump prices near €1.98 per litre during the third week of July as refining margins surged.
Low stock levels sustain market pressure
Despite high crude throughput at U.S. refineries during the first seven months of 2026, diesel inventories remain tight. Crude inputs during this period were at their highest since 2019, yet high refinery utilization has not restored distillate stocks to typical seasonal levels. As a result, stocks at the start of August were at their lowest for this time of year in nearly three decades, making the U.S. fuel market particularly sensitive to shifts in refinery output and international product flows.
Crude oil prices also increased on Wednesday, with Brent near $89.81 a barrel and West Texas Intermediate around $84.08. Diesel prices have experienced stronger upward pressure, as supply remains limited across key markets. The tightness supports sectors such as trucking, agriculture, construction, manufacturing, and other commercial activities. The combination of low U.S. inventories, high European refining margins, refinery outages, and export restrictions continues to keep diesel markets tight across both the Atlantic and beyond.