LOS ANGELES, Calif. — The average price of a gallon of self-serve regular gasoline in Los Angeles County rose today for the 12th time in 13 days, increasing four-tenths of a cent to $3.67.

The average price is 5 cents more than one week ago but 3.2 cents less than one month ago and 5.8 cents lower than one year ago, according to figures from the AAA and Oil Price Information Service.

The average price has increased 8.5 cents over the past 13 days, including three-tenths of a cent on both Monday and Tuesday.

The Orange County average price rose a half-cent today to $3.651, one day after increasing two-tenths of a cent.

The Orange County average price is 5.3 cents more than one week ago, but 1.8 cents less than one month ago and 6.7 cents lower than one year ago.

The Orange County average price has risen 16 times in the past 18 days, increasing 11.6 cents over that span.