The average U.S. price of regular-grade gasoline has jumped 15 cents over past two weeks to $4.38 per gallon.

Industry analyst Trilby Lundberg of the Lundberg Survey says as of May 9, 2022, the current price sits just a nickel below the highest average price in history — $4.43, set on March 11.

The average price at the pump is $1.36 higher than it was one year ago.

Nationwide, the highest average price for regular-grade gas is in the San Francisco Bay Area, at $5.85 per gallon.

Diesel soared 43 cents, to $5.58 a gallon.

To find the lowest prices near you, visit GasBuddy.com.

Business Insider offers three main reasons why prices are so high.

-Jeff Lemucchi