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Inland Empire gas price rises to highest amount since September 28th

Published On: Mar 04 2014 10:52:06 AM CST
Gas prices

Ferre Dollar/CNN

RIVERSIDE, Calif. -

The average price of a gallon of self-serve regular gasoline in the Inland Empire rose to its highest amount since September 28th Tuesday, increasing a half-cent to $3.918.

   The average price in Riverside and San Bernardino counties has risen 15 consecutive days and 28 of the past 29 and is 6.8 cents more than one week ago and 31.6 cents higher than one month ago, but 35.2 cents less than one year ago, according to figures from the AAA and Oil Price Information Service.

   The average price has risen 31.9 cents over the past 29 days, including three-tenths of a cent on Monday.

   The rising prices are the result of the annual refinery maintenance season when supplies of winter blend gasoline drop as refineries start production of the more expensive summer blend, according to Marie Montgomery of the Automobile Club of Southern California.