NEW YORK / RankWire.AI / – On Wednesday, diesel prices continued their upward trend due to limited stocks and refinery outages impacting fuel availability in the United States and Europe. U.S. ultra-low sulfur diesel futures surged 7.4% on Monday, settling at $4.19 a gallon, marking the most significant daily jump since July 13. Early Wednesday, the contract traded near $4.28 a gallon, as the refined-product markets kept reflecting constrained supply conditions across key consuming regions.
Current diesel inventories in the U.S. remain significantly below recent seasonal averages. According to the U.S. Energy Information Administration, the week ending July 31 saw distillate stocks at 107.2 million barrels—a decrease of 3.5 million barrels from the previous week. These stock levels are also 5.1% below the same period last year and 16.1% beneath the comparable figures in 2024. Distillates encompass diesel and heating oil, both vital for transportation, industrial use, and seasonal energy needs.
Despite a modest weekly decline, retail diesel prices remain elevated. The U.S. national average reached $5.257 per gallon on August 10, slightly down from $5.348 a week earlier, yet still well above the $4.578 recorded on July 6. Similar market pressures have affected Europe, with low-sulfur gasoil margins rising sharply. The premium over crude oil hit a record $74.66 per barrel on July 30, as finished diesel fetched higher market values.
Refinery disruptions tighten global diesel supply
A series of refinery outages have further restricted the availability of diesel for international markets. An attack damaged a refinery in Russia’s Tatarstan region, exacerbating already reduced processing activity within the country. Meanwhile, Saudi Arabia’s Jazan refinery has remained offline since July 27 after an earlier attack, removing another source of refined products from global trade routes. During June, refinery runs in several producing areas had already fallen below last year’s levels, limiting the flow of fuel into international markets.
Export restrictions have compounded supply constraints. Russia extended restrictions on gasoline and diesel exports through January 31, 2027, while vessel traffic through the Strait of Hormuz from the Middle East has sharply decreased. Additionally, China has reduced supplies of refined fuels amid declining 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 contributing to increased retail fuel costs.
US refineries operate at high capacity despite low inventories
American refineries have processed record-high volumes of crude oil, yet diesel stocks remain far from typical seasonal levels. Crude inputs during the first seven months of 2026 reached their highest point since 2019 for that period. While refinery utilization remains robust due to higher processing margins, distillate inventories at the start of August are at their lowest in roughly thirty years for this time of year. This inventory scarcity coincides with diminished product flows from several overseas refining centers.
Crude oil prices also increased on Wednesday, with Brent approaching $89.81 per barrel and West Texas Intermediate near $84.08. The upward pressure on diesel costs is driven more by shortages of finished fuel rather than crude supply alone. Diesel remains a crucial fuel for trucking, agriculture, construction, manufacturing, and other commercial sectors across both regions. Limited U.S. inventories, elevated European refining margins, ongoing refinery outages, and export restrictions continue to create a tight global market for diesel and other middle-distillates.