The average price of regular gasoline now stands at $4.28 in Los Angeles County, steadily rising since the beginning of 2013.
Prices increased 53.8 cents in the past 25 days in Los Angeles County and are now the highest in the state. Gas is still below its highest recorded average of $4.70 registered on Oct. 9, 2012, according to AAA.
In Brentwood, the lowest price for regular gasoline is $4.38 at Conserv Fuel at 11699 San Vicente Blvd., according to Mapquest.
The average county price is 12.6 cents more than one week ago, 55.2 cents higher than one month ago and 25.2 cents greater than one year ago.
The increasing prices are the result of reduced supplies caused by low levels of production in Southern California stemming from refinery maintenance, according to Jeffrey Spring of the Automobile Club of Southern California.
City News Service contributed to this report.