Why California gas prices are so high and vary so widely: 'Mystery surcharge' and more

West Hollywood, CA, Tuesday, March 8, 2022 - Jesse Espersen from Topanga fills his SUV with 16.536 gallons of Super+ gas at 7.559 per gallon for a total of 125 dollars at a Mobil station at the corner of La Cienega Blvd. and Beverly Blvd.(Robert Gauthier/Los Angeles Times)
Jesse Espersen of Topanga fills his SUV at 7.55 per gallon for a total of $124 at a Mobil station at the corner of La Cienega and Beverly boulevards in West Hollywood. (Robert Gauthier / Los Angeles Times)

You’re filling up your Toyota Camry at a gas station in Los Angeles County — home to six oil refineries that pump out more than a million barrels a day, nearly 60% of the refinery capacity in California. With so much oil so close to home, you might think gasoline would be pretty cheap.

You’d be wrong. With the average cost of gas in the county a wallet-busting $5.87 a gallon almost three weeks after Russia invaded Ukraine, a full tank would set you back $92.74.

That same tank of gas in tiny Yuba County — about 60 miles north of Sacramento, with no refineries and just 82,000 people — would cost on average nearly $6 less. Differences are more stark between California and other states and can even vary wildly from block to block.

No one factor drives these wide gasoline price gaps, but land prices are a big part of the equation in California. A combination of market forces, local differences and entrepreneurial prerogatives also helps determine prices from one filling station — or county — to the next.

Gas station proprietors, like other business owners, are free to charge whatever they want, as long as they don’t engage in illegal practices, such as price fixing or gouging. Branding and pricing strategies often come into play at this stage, said Patrick De Haan, head of petroleum analysis for GasBuddy.

In fact, lawmakers, consumer advocates and state investigators are looking into alleged price fixing in California and what impact that illegal practice may have on the amount consumers pay for gas at some name-brand stations.

Some of the many factors that help define prices at the pump are more mundane. Rapid shifts in the wholesale price stations pay for gas can have an impact, as their purchasing schedules fail to keep up, De Haan said.

“Stations generally fill their underground tanks every 3-5 days, and with wholesale prices varying daily, and energy markets moving constantly, there's a wide range in what stations themselves pay,” he said in an email.

And then there are land prices.

The Chevron station at 16801 Ventura Blvd. in Encino was charging $6.49 for a gallon of regular unleaded Wednesday afternoon. Less than two miles away, at the Savings gas station at 18076 Ventura Blvd., a gallon cost $5.49.

“Encino is difficult for business," said Mike Shahri, who works at the Chevron station. “The real estate here is more expensive than many other areas.”

A related issue is convenience. Many consumers will pay slightly more per gallon if it means avoiding a U-turn at a busy intersection or not going out of their way, said Leo Feler, senior economist at the UCLA Anderson Forecast. Offering a specialty service or being the only game in town can also help support elevated prices, while having many competing stations can drive down gas prices in a given area.