cost-of-living

Diesel Sets a New Record at $6.53 While Crude Slides. Your Groceries Don't Care About Crude.

Published September 24, 20264 min read

Line chart of Ultra-Low-Sulfur Diesel futures (HO=F), last 90 days (USD/gal) on a dark background — Diesel just outran crude, and the invoice is arriving through everything that moves by truck. Illustration: MarketIntelLabs

The diesel number that matters landed on Monday and it broke the record the desk flagged four days earlier. The Energy Information Administration's weekly survey put the U.S. retail price of on-highway diesel at 6.529 dollars a gallon for the week of September 21, up from 6.285 the week before and 5.599 in the week of August 24. A year ago, in the week of September 22, 2025, the same survey read 3.749. That is a 74 percent increase in twelve months, and it is now the highest weekly average in the history of the series (a nominal record).

Key takeaways: EIA put U.S. retail diesel at a record $6.529 a gallon for the week of September 21, 74 percent above last year. Regular gasoline averaged $4.…

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