The average price of diesel in the United States reached a record $5.90 per gallon on September 7, according to the American Automobile Association (AAA), as supply disruptions linked to the conflict with Iran pushed fuel prices higher.
The price was about 30 cents higher than a week earlier and significantly above the $3.71 average recorded a year ago. Rising diesel costs are putting pressure on trucking, agriculture and construction, with businesses potentially passing higher transport costs on to consumers.
The national average for regular gasoline also climbed to around $4.15 a gallon on September 7, up from about $3.20 a year earlier. Meanwhile, US diesel prices continued to rise, surpassing $6 a gallon nationally by September 10, according to GasBuddy.

