NEW YORK / RankWire.AI / – Wednesday saw persistent pressure in diesel markets driven by the U.S. Energy Information Administration, as dwindling inventories and refinery outages tightened fuel availability across the US and Europe. On Monday, U.S. ultra-low sulfur diesel futures jumped 7.4% to reach $4.19 a gallon, marking their strongest daily gain since July 13. Early Wednesday, prices traded close to $4.28. Meanwhile, European diesel refining margins remained elevated after nearly 10% gains at the beginning of the week.
Recent official weekly figures from the U.S. Energy Information Administration showed a significant drop in distillate stocks. For the week ending July 31, stockpiles amounted to 107.2 million barrels, a decrease of 3.5 million barrels from the prior week. These levels are 5.1% lower than last year and 16.1% below the same period in 2024. This category encompasses diesel and heating oil, serving as a key indicator of domestic middle-distillate supply.
Despite a slight easing from the previous week, retail diesel prices remained elevated. As of August 10, the U.S. national average was $5.257 a gallon, down from $5.348 a week earlier, but still significantly above the $4.578 average recorded on July 6. Similar pressures are evident in European markets. The premium for low-sulfur gasoil over crude surged to a record $74.66 a barrel on July 30, reflecting a sharp increase in finished diesel values compared with crude oil.
Refinery outages restrict global product flows
Refinery shutdowns have curtailed the supply of diesel and other fuels for international markets. An attack damaged a refinery in Russia’s Tatarstan region, reducing Russian processing activity further. Saudi Arabia’s Jazan refinery has remained offline since July 27 following an earlier attack, taking additional refining capacity out of circulation. Globally, refinery utilization has been below last year’s levels since June, as diminished processing affected key fuel-producing regions.
Export restrictions further limit available supplies. Russia extended restrictions on gasoline and diesel exports through January 31, 2027. Shipments from the Middle East have decreased due to lower vessel traffic through the Strait of Hormuz, a critical route for oil trade. China’s domestic refinery activity has also waned, leading to reduced exports of refined products. The European Central Bank indicated diesel pump prices near €1.98 per litre during the third week of July, with refining margins playing a larger role in retail costs.
High refinery throughput fails to boost US inventories
U.S. refiners processed record amounts of crude during the first seven months of 2026, reaching levels unseen since 2019. Despite high utilization rates, diesel stockpiles have not returned to typical seasonal levels and remain unusually low. As August began, inventories were at their lowest point for this time of year in about thirty years. The persistent tightness coincides with reduced international product flows and ongoing refinery disruptions.
Oil prices edged higher on Wednesday, with Brent nearing $89.81 a barrel and West Texas Intermediate around $84.08. Diesel markets remain strained, given the limited supplies of finished fuel in several major regions. Diesel is essential for trucking, agriculture, construction, and manufacturing sectors. The combination of low U.S. inventories, high European refining margins, refinery outages, and export restrictions continues to keep diesel supplies tight across both regions as market participants compete for limited refined products.