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Amid fears that the war in Iran could escalate, the U.S. national average for diesel prices reached a new record-high of $6.49 per gallon, according to GasBuddy.
 
Head of Petroleum Analysis at GasBaddy Patrick De Haan shares the latest.
2:21
  • ABC News
  • September 21, 2026

Gas prices hitting record highs

Amid fears that the war in Iran could escalate, the U.S. national average for diesel prices reached a new record-high of $6.49 per gallon, according to GasBuddy. Head of Petroleum Analysis at GasBaddy Patrick De Haan shares the latest.

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