NEW YORK / RankWire.AI / – On Wednesday, diesel markets continued to face tight conditions as refinery disruptions and low inventories tightened fuel availability across both the United States and Europe. U.S. ultra-low sulfur diesel futures surged 7.4% on Monday to reach $4.19 a gallon, marking the strongest single-day rise since July 13. Early Wednesday, prices hovered near $4.28. Meanwhile, European diesel refining margins stayed elevated after nearly a 10% increase at the beginning of the week.
Recent official weekly data from the U.S. Energy Information Administration shows a significant drop in U.S. distillate stocks. The agency reported inventories of 107.2 million barrels for the week ending July 31, a decrease of 3.5 million barrels from the prior week. These stocks are 5.1% below the levels of the same period last year and 16.1% under the comparable period in 2024. As this category includes diesel and heating oil, it serves as a key indicator of domestic middle-distillate supply.
Despite a slight easing from the previous week, retail diesel prices remained high. On August 10, the national average was $5.257 per gallon, down from $5.348 a week earlier, but still well above the $4.578 recorded on July 6. European markets face similar pressures, with the premium for low-sulfur gasoil over crude reaching a record $74.66 a barrel on July 30, reflecting a sharp increase in the value of finished diesel compared to crude oil.
Global supply disruptions from refineries increase product scarcity
Refinery outages have contributed to the reduced availability of diesel and other fuels for international markets. An attack damaged a refinery in Russia’s Tatarstan region, compounding the decline in Russian processing capacity. Since July 27, Saudi Arabia’s Jazan refinery has remained offline following an earlier attack, further diminishing refined-product supply. In June, refinery runs globally were already below last year’s levels due to reduced processing activity in key fuel-producing regions.
Export restrictions also constrain supply. Russia extended restrictions on gasoline and diesel exports through January 31, 2027. Vessel traffic through the Strait of Hormuz, a key route for oil transportation, has decreased, impacting Middle East shipments. Additionally, China has reduced its supplies of refined products amid weakening domestic refinery operations. The European Central Bank reported diesel pump prices near €1.98 per litre during the third week of July, with refining margins playing a larger role in retail costs.
Despite high refinery throughput, US diesel inventories remain critically low
Although U.S. refiners have processed record levels of crude in the first seven months of 2026—highest since 2019—distillate stocks have not returned to typical seasonal levels. Inventory levels at the start of August are the lowest for this time of year in about thirty years. The persistent tightness stems from ongoing refinery disruptions and decreased international product flows. Despite high refinery utilization, diesel stockpiles have not kept pace.
Oil prices rose again on Wednesday, with Brent crude near $89.81 a barrel and West Texas Intermediate around $84.08. The market continues to face pressure as supplies of finished diesel remain tight in major regions. Diesel is extensively used in trucking, agriculture, construction, and manufacturing. The combination of low U.S. inventories, high European refining margins, refinery outages, and export restrictions has kept the diesel markets tight across both continents, with buyers competing for limited refined supplies.