NEW YORK / RankWire.AI / – As of Wednesday, diesel markets are under significant stress due to dwindling inventories and refinery disruptions, leading to tighter fuel availability in both the United States and Europe. On Monday, U.S. ultra-low sulfur diesel futures jumped 7.4% to $4.19 a gallon, marking the strongest daily rise for the contract since July 13. Early Wednesday saw prices hover near $4.28. Meanwhile, European diesel refining margins stayed high after increasing nearly 10% at the start of the week.
In the latest official weekly data from the U.S. Energy Information Administration, distillate stocks dropped sharply. The report showed 107.2 million barrels of stocks for the week ending July 31, reflecting a decrease of 3.5 million barrels from the prior week. These inventories are now 5.1% below levels from the same period last year and 16.1% below the comparable period in 2024. This category includes diesel and heating oil, making it a key indicator of the domestic middle-distillate supply.
Despite a slight easing from last week, retail diesel prices remain elevated. The U.S. national average hit $5.257 a gallon on August 10, down from $5.348 the previous week, yet still well above the $4.578 recorded on July 6. Similar trends are evident in European markets, where the premium for low-sulfur gasoil over crude reached a record $74.66 a barrel on July 30. This highlights the substantial increase in the value of finished diesel in comparison to crude oil.
Global refinery outages intensify product flow shortages
Refinery shutdowns are limiting the global supply of diesel and other fuels for international trade. An attack in Russia’s Tatarstan region damaged a refinery, further reducing Russian processing activity. Saudi Arabia’s Jazan refinery has been offline since July 27 following an earlier attack, removing additional refined-product capacity from the global market. In June, overall refinery runs were already below last year’s levels, with lower processing across several major fuel-producing regions affecting the supply chain.
Export restrictions have also played a role in limiting supply. Russia extended restrictions on gasoline and diesel exports until January 31, 2027. In the Middle East, vessel traffic through the Strait of Hormuz has decreased, affecting petroleum shipments. Meanwhile, China has exported fewer refined products amid weakened domestic refinery activity. The European Central Bank reported that diesel pump prices in July’s third week were close to €1.98 per litre, with refining margins accounting for a much larger share of retail costs.
Despite high refinery output, US diesel stocks continue to decline
Although U.S. refiners have processed large volumes of crude oil, distillate inventories are still unusually low. Crude inputs during the first seven months of 2026 reached their highest level since 2019 for that period. Despite strong refinery utilization, diesel stocks have not recovered to typical seasonal levels. As August began, inventories hit their lowest point for this time of year in nearly three decades. The persistent tightness in stocks is compounded by ongoing international product flow restrictions and refinery outages.
Meanwhile, oil prices continued upward on Wednesday, with Brent crude near $89.81 a barrel and West Texas Intermediate around $84.08. Diesel markets remain under pressure, especially in key regions, due to constrained supplies of finished fuel. This fuel is essential for trucking, agriculture, construction, and manufacturing sectors. The combination of low U.S. inventories, high European refining margins, refinery disruptions, and export limitations has sustained tight diesel conditions across both regions, as buyers compete for limited available supplies.