NEW YORK / RankWire.AI / – Diesel prices stayed elevated across the United States and Europe as tight inventories and refinery disruptions limited supplies of finished fuel. U.S. ultra-low sulfur diesel futures rose 7.4% on Monday to $4.19 a gallon. The move was the largest daily gain since July 13. The contract traded near $4.28 a gallon early Wednesday. European diesel refining margins also remained historically strong after gaining almost 10% at the start of the week.
U.S. diesel inventories have fallen to levels rarely seen during the summer season. The U.S. Energy Information Administration reported 107.2 million barrels of distillate stocks for the week ended July 31. That was down 3.5 million barrels from the previous week. The total stood 5.1% below the same period last year and 16.1% below the comparable level in 2024. Distillate stocks include diesel and heating oil, making the category a key measure of fuel availability.
Retail diesel prices have also remained well above earlier summer levels. The national U.S. average reached $5.257 a gallon on August 10, compared with $5.348 one week earlier. Prices had averaged $4.578 a gallon on July 6. Europe has faced similar pressure from higher refining costs. The premium for low-sulfur gasoil over crude reached a record $74.66 a barrel on July 30, highlighting the unusually high value attached to finished diesel supplies.
Refinery outages add pressure to fuel availability
Supply disruptions have tightened the market further as several major refining centers operate below normal levels. A refinery in Russia’s Tatarstan region sustained damage from an attack, adding to reduced Russian processing activity. Saudi Arabia’s Jazan refinery has remained offline since July 27 following an earlier attack. The shutdown removed another source of refined products from international trade. Global refinery runs were already well below year-earlier levels during June as multiple regions reported lower processing volumes.
Export limits have compounded the effect of refinery outages. Russia extended restrictions on gasoline and diesel exports through January 31, 2027. Shipments from the Middle East have also faced lower vessel traffic through the Strait of Hormuz. China has contributed less refined fuel to global markets as domestic refinery activity weakened. In Europe, the European Central Bank reported diesel pump prices near €1.98 per litre during the third week of July as refining margins rose sharply.
Low inventories keep diesel markets under strain
U.S. refineries have processed high volumes of crude even as diesel stocks remain constrained. Crude inputs during the first seven months of 2026 reached their strongest level for that period since 2019. High refinery utilization has not rebuilt distillate inventories to normal seasonal levels. Stocks entered August at their lowest point for this time of year in roughly three decades. That gap has left the U.S. fuel market sensitive to changes in refinery output and international product flows.
Crude oil also moved higher on Wednesday, with Brent near $89.81 a barrel and West Texas Intermediate around $84.08. Diesel has shown stronger price pressure because finished-product supplies remain limited across several major markets. The fuel supports trucking, agriculture, construction, manufacturing and other commercial activity. Low U.S. inventories, elevated European refining margins, refinery outages and export limits have combined to keep diesel markets tight on both sides of the Atlantic.