NEW YORK / RankWire.AI / – On Wednesday, diesel prices stayed high due to limited inventories and refinery disruptions impacting supplies in both the United States and Europe. U.S. ultra-low sulfur diesel futures surged 7.4% on Monday, closing at $4.19 a gallon—the biggest daily rise since July 13. Early Wednesday, the contract hovered near $4.28 a gallon as refined-product markets continued to indicate constrained supply across key consuming areas.
U.S. diesel stockpiles are notably below recent seasonal averages. According to the U.S. Energy Information Administration, distillate reserves for the week ending July 31 totaled 107.2 million barrels, a decline of 3.5 million barrels from the previous week. These inventories are also 5.1% below the same period last year and 16.1% under the levels in 2024. Distillates include diesel and heating oil, both vital for transportation, industrial use, and seasonal energy needs.
Meanwhile, retail diesel prices have remained elevated despite a slight weekly decrease. The national average was $5.257 per gallon on August 10, down from $5.348 the week prior, yet still well above the $4.578 recorded on July 6. Similar pressures are felt in European fuel markets, where low-sulfur gasoil margins have increased sharply. The premium over crude reached a record $74.66 per barrel on July 30, reflecting higher values for finished diesel products.
Refinery outages diminish diesel supplies globally
Multiple refinery shutdowns have further tightened global diesel availability. An attack damaged a refinery in Russia’s Tatarstan region, compounding the impact of reduced processing activity within the country. Saudi Arabia’s Jazan refinery has been offline since July 27 after an earlier attack, removing another source of refined fuels from international trade. During June, several producing regions already experienced lower refinery runs compared to the previous year, limiting fuel supply to global markets.
Export restrictions have added to the supply constraints. Russia extended limits on gasoline and diesel exports through January 31, 2027. Additionally, vessel traffic through the Strait of Hormuz has sharply declined for Middle Eastern shipments. China has also supplied fewer refined fuels amid weakening domestic refinery activity. The European Central Bank reported diesel pump prices near €1.98 per litre in the third week of July, with higher refining margins accounting for a larger share of retail fuel costs.
US refining capacity remains robust despite low inventories
US refiners have processed substantial crude volumes, yet diesel stocks have not rebounded to typical seasonal levels. Crude inputs in the first seven months of 2026 hit their highest point since 2019 for that period. Refinery utilization remains strong, supported by increased processing margins. Nonetheless, distillate inventories at the start of August are the lowest for this time of year in nearly thirty years. This shortage coincides with reduced product flows from several overseas refining centers.
Crude oil prices also increased Wednesday, with Brent near $89.81 a barrel and West Texas Intermediate around $84.08. The rally in diesel prices is driven more by shortages in finished fuel rather than crude supply alone. Diesel supports sectors like trucking, agriculture, construction, manufacturing, and other commercial activities across both regions. Persistent low US inventories, elevated European refining margins, refinery outages, and export restrictions continue to sustain a tight global diesel market.