Iran war pushes diesel – the economy’s lifeblood – to record high prices, with no relief on the horizon

By: Morgan Bazilian, Colorado School of Mines and Jamie Webster, Colorado School of Mines, The Conversation

Outlets: The Conversation

Published: September 17, 2026

Words: 1,332

Last Updated: 20 hours, 57 minutes ago

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By Morgan Bazilian, Colorado School of Mines and Jamie Webster, Colorado School of Mines

Diesel fuel prices in the U.S. continue to break all-time records, hitting $6.28 a gallon as a national average on Sept. 14, 2026, and they aren’t likely to come down anytime soon. Because diesel is the fuel for freight transportation, farming and construction – and is related to a key heating fuel – the effects are set to spread across the …

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