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California clears sales of higher-ethanol fuel to lower gasoline costs

By Thomson Reuters Sep 21, 2026 | 10:40 AM

By Siddharth Cavale

NEW YORK, Sept 21 (Reuters) – California Governor Gavin Newsom signed legislation allowing the immediate sale of a higher-ethanol fuel blend in the state, as it seeks to rein in skyrocketing ​costs at the pump in the country’s largest auto market.

The ‌signing of Senate Bill 795 on Saturday removed the final regulatory hurdle for the sale of E15, a gasoline blend containing 15% ethanol, more than a year after state Senators unanimously voted to allow the move. California had been the only US state where ‌the ​fuel could not be sold.

“This common-sense bill cuts ⁠unnecessary red tape while ⁠maintaining our environmental and safety standards. We’re helping make E15 a real option for California drivers,” Newsom said in a statement.

The measure is expected to benefit ethanol producers and corn growers by opening the ​nation’s most populous state to the higher blend.

Eric McAfee, chief executive of Cupertino, California-based renewable fuels producer Aemetis, estimated the change could add ⁠about 650 million gallons of annual ethanol ⁠demand in the state.

“Currently ethanol sells wholesale for about $2.30 a ​gallon, so it will result in significant cost savings compared with gasoline ​in California,” McAfee said.

Average gasoline prices in California were hovering near ‌record levels of about $6.14 per gallon on Sunday, compared with a national average of $4.44 per gallon, according to GasBuddy data.

California’s approval of E15 comes as Congress weighs separate legislation to permit year-round sales of E15 ⁠nationwide.

The issue has gained urgency after the US war with Iran rattled global oil markets, pushing up fuel prices and raising concerns about crude supply ⁠disruptions. The impact has ‌been particularly acute in California, which already records ⁠some of the highest gasoline prices in the United States ​because of ‌stringent fuel standards, relatively high taxes and its ​reliance on imported ⁠petroleum products.

The Renewable Fuels Association said E15 could lower retail gasoline prices by roughly 20 cents per gallon and save California drivers at least $2.7 billion annually, citing a 2024 study by economists at the University of California, Berkeley, and the US Naval Academy.

(Reporting by Siddharth Cavale in New York; Editing ​by Bill Berkrot)