California Has a Gas-Price Mystery: Too High, but Why?
Drivers in the most populous U.S. state are paying more at the pump than anyone else. California’s gas taxes and its strict clean-air policies don’t explain away all of the $1.23-a-gallon difference.
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### Instruction: California Has a Gas-Price Mystery: Too High, but Why?

### Response: Drivers in the most populous U.S. state are paying more at the pump than anyone else. California’s gas taxes and its strict clean-air policies don’t explain away all of the $1.23-a-gallon difference.