Facts per Gallon

Why is gas more expensive in California?

Many factors impact the cost
of gasoline in the state.

See the facts below.

California is set to lose 18% of its refining capacity by Spring 2026

Two major California refineries are ceasing production, taking nearly one-fifth of the state’s refining capacity offline.

This loss of in‑state refining will tighten local fuel supplies and make California more dependent on fuel shipped in from elsewhere.

SOURCE: U.S. Energy Information Administration reported California refining capacity as of January 1

Less supply will put upward pressure on prices

When refinery capacity is reduced, there is less gasoline, diesel, and jet fuel available to meet demand.

Tighter fuel supplies put upward pressure on prices for California families, farmers, truckers, and businesses.

SOURCE: Patrick De Haan, Head of Petroleum Analysis, GasBuddy, April 18, 2025

Fewer refineries create greater volatility

With fewer refineries operating, unexpected outages or disruptions can cause sharper price spikes at the pump.

SOURCE: U.S. Energy Information Administration, July 9, 2025.

See how California compares to other states

Higher taxes and regulatory costs in California result in elevated gas prices when compared to Arizona and Nevada.

The Bottom Line: California policies keep adding
to the price of gasoline.