NEW YORK / RankWire.AI / – The U.S. Energy Information Administration reports that diesel prices remain elevated across the United States and Europe, driven by limited inventories and refinery outages that restrict the availability of finished fuel. On Monday, U.S. ultra-low sulfur diesel futures increased by 7.4%, reaching $4.19 a gallon, marking their largest one-day rise since July 13. As of early Wednesday, the contract traded close to $4.28 a gallon. Meanwhile, European diesel refining margins held near record highs after experiencing nearly a 10% gain at the beginning of the week.
Diesel stockpiles in the U.S. have fallen to levels rarely observed during summer months. The U.S. Energy Information Administration indicated that for the week ending July 31, distillate inventories totaled 107.2 million barrels, a decline of 3.5 million barrels from the previous week. This figure is 5.1% below the same period last year and 16.1% lower than the corresponding level in 2024. Since distillate stocks include diesel and heating oil, they serve as a crucial indicator of fuel supply.
Retail diesel prices remain significantly above the levels seen earlier in the summer. The national average hit $5.257 a gallon on August 10, compared to $5.348 the week prior. Back on July 6, prices averaged $4.578 a gallon. Europe faces similar challenges, with higher refining costs pushing prices up. The premium for low-sulfur gasoil over crude oil surged to a record $74.66 a barrel on July 30, underscoring the exceptional value placed on available diesel supplies.
Refinery outages intensify fuel supply concerns
Market tightness has worsened due to ongoing refinery disruptions in key global regions. An attack caused damage to a refinery in Russia’s Tatarstan, further reducing Russian processing capacity. Additionally, Saudi Arabia’s Jazan refinery has remained offline since July 27 following an earlier attack. These shutdowns have eliminated another source of refined products from international markets. During June, global refinery throughput was already significantly below last year’s levels, with multiple regions reporting decreased processing volumes.
Export restrictions have exacerbated supply issues. Russia extended its limitations on gasoline and diesel exports through January 31, 2027. Meanwhile, vessel traffic through the Strait of Hormuz from Middle Eastern countries has decreased. China’s domestic refinery activity has slowed, resulting in less refined fuel reaching global markets. In Europe, the European Central Bank reported that diesel pump prices hovered near €1.98 per litre during the third week of July, as refining margins surged sharply.
Limited inventories sustain pressure on diesel markets
Despite high crude processing volumes, U.S. refineries have not rebuilt distillate inventories to typical seasonal levels. Crude intake in the first seven months of 2026 was at its strongest since 2019. However, high refinery utilization has not translated into normal inventory levels, with stocks at their lowest for this time of year in nearly three decades as August began. This vulnerability makes the U.S. fuel market highly responsive to fluctuations in refinery output and international product flows.
Crude oil prices rose again on Wednesday, with Brent approaching $89.81 a barrel and West Texas Intermediate around $84.08. The upward pressure on diesel prices persists because supplies of finished products remain limited across key markets. Diesel fuels crucial sectors such as trucking, agriculture, construction, and manufacturing. The combination of low U.S. inventories, elevated European refining margins, refinery outages, and export restrictions has kept diesel markets tight across both sides of the Atlantic.