The national average price for diesel reached $6.51 per gallon on Monday. A commodity strategist stated the supply disruption has moved into a diesel market that “no handshake can refill.”
Record Prices Hit Harvest and Freight
The U.S. average diesel price hit an all-time high of $6.5107 per gallon on Sept. 21, 2026, according to AAA data. According to economist Steve Hanke, the surge is increasing costs for the domestic agricultural and logistics sectors.
Hanke notes that farm fuel costs have risen by $11 per acre for corn and $7 per acre for soybeans compared to last year. The price spike is also placing independent trucking firms under the threat of diesel-driven bankruptcies.
Red Sea Diplomacy and Pipeline Closures
The fuel rally follows weekend meetings in Muscat, Oman, between U.S. officials and Houthi representatives. According to a recent note by commodity strategist Giacomo Prandelli, the Houthis offered safe passage to U.S. and commercial vessels, but Saudi Arabian shipping remains an exception.
Prandelli stated that Saudi Arabia’s crude oil export routes are currently compromised. He stated that traffic through the Strait of Hormuz dropped to four vessels on Monday, down from a pre-war average of roughly 125.
Additionally, the East-West Pipeline to Yanbu remains offline following a Sept. 10 drone attack. While U.S. Energy Secretary Chris Wright expects the pipeline back in “days,” Prandelli wrote that trading estimates range up to 8 weeks.
Refinery Shortages Override Markets
Prandelli highlighted that a deal protecting American ships but targeting Saudi vessels protects the “wrong ships for the oil market.” Consequently, European refiners like Poland’s ORLEN are tendering for alternative grades including Grane, Johan Sverdrup, and WTI Midland, according to his newsletter.
Asian diesel margins have crossed $87 a barrel, and New York diesel futures settled at an all-time high. “The screen says the risk premium is negotiable,” Prandelli wrote. “The refinery gate says the shortage is not”.
Sustained Price Pressures
Constrained global supplies have pushed Brent crude futures to $101.60 per barrel, at the last check. Meanwhile, its tracker, United States Brent Oil Fund LP (NYSE:BNO), was down 1.39% in premarket on Monday.
Similarly, the West Texas Intermediate (WTI) crude was 3.16% lower at $93.04 per barrel, with United States Oil Fund LP (NYSE:USO) down 1.57% in Monday’s premarket trading.
The S&P 500 index has advanced 11.76% year-to-date. Similarly, the Nasdaq Composite index was up 14.11%, and the Dow Jones gained 7.53% YTD.
On Friday, the SPDR S&P 500 ETF Trust (NYSE:SPY) and Invesco QQQ Trust ETF (NASDAQ:QQQ), which track the S&P 500 and Nasdaq-100, respectively, closed higher. SPY rose 0.13% to $761.69, while QQQ rose 0.63% to $721.45. Meanwhile, the Dow tracker, State Street SPDR Dow Jones Industrial Average ETF Trust (NYSE:DIA), ended 0.25% lower at $515.88.
In premarket on Monday, SPY was up 0.62%, QQQ advanced 0.94%, and DIA gained 0.61%.
Disclaimer: This content was partially produced with the help of AI tools and was reviewed and published by Benzinga editors.
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