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Diesel Costs Climb as Spot Rates Fall, Widening Trucking Market Gap

FW Desk News

FreightWatch.News

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Monday, August 24, 2026

Diesel prices have surged since July while spot truckload rates declined in the opposite direction. This creates a fundamental market disconnection affecting both carriers and shippers.

The divergence reflects supply and demand dynamics rather than fuel costs, according to market observers. Spot rates are determined by what the market will bear at any given moment, independent of diesel prices at the pump. Shippers relying on fuel surcharges tied to retail diesel and carriers protecting margins in a softening spot environment face particular challenges.

Geopolitical factors underpin the diesel pressure. Ukrainian drone strikes targeting Russian energy infrastructure have contributed significantly to the surge, with crack spreads—the margin between crude and diesel—reaching record highs. Extended fuel lines reported at Russian stations underscore supply constraints.

Outbound tender volumes have retreated from mid-year peaks, currently tracking near 2023 levels but exceeding prior-year figures. The July slowdown reflects typical seasonal patterns, with Labor Day timing affecting freight demand cycles.

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