“”Californians pay an additional 72.4 cents per gallon at the pump attributable to state and local taxes and fees, which is the highest in the nation,” according to the California Tax Foundation.”
…
“”the state’s cap-and-trade program affects gasoline prices because it requires fuel suppliers to purchase permits that cover the greenhouse gases emitted when the fuel is burned. We estimate that this currently adds 23 cents per gallon to the price of gasoline.””
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“California has effectively walled its market off from fuel produced elsewhere. They write that, despite bordering other states from which fuel could theoretically flow to satisfy demand and lower prices, California policies have made the state an “island” because of “capacity constraints on California’s pipelines and the state’s stringent environmental fuel standards, which effectively require fuel to be refined in-state and limit the ability to import fuel from other regions.””
https://reason.com/2025/07/11/blame-california-politicians-for-the-states-sky-high-gasoline-prices