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Story summary
- California gas stations displayed diesel at $9.999 per gallon, the maximum pump reading, on September 10 2026.
- GasBuddy analyst Patrick De Haan said the $9.999 sign reflects diesel prices, with the national average above $6 and reaching $7.
- Analysts warned diesel’s daily cost increase of $700 million could climb to $1 billion, straining the harvest season.
