Gas prices at a Shell gas station above $6 a gallon for regular gasoline and $8 a gallon for diesel are displayed across from a US flag outside of the Marathon Petroleum Corp. Los Angeles Refinery in Carson, California on September 22, 2026. According to the company's website, the refinery is the largest on the West Coast with a crude oil capacity of 365,000 barrels per calendar day, producing California Air Resources Board (CARB) gasoline and CARB diesel fuel among other products. (Photo by Patrick T. Fallon / AFP via Getty Images)