The average price of a gallon of self-serve regular gasoline in Los Angeles County rose for the fourth consecutive day Saturday, increasing 1 cent to $4.128.
The streak follows a run of 21 decreases in 22 days.
The average price is 3.5 cents more than one week ago, 8.2 cents lower than one month ago, and 31.8 cents more than one year ago, according to figures from the AAA and Oil Price Information Service.
The Orange County average price also rose for the fourth day in a row, likewise increasing 1 cent to $4.087. It is 3.6 cents more than a week ago, 9.7 cents lower than a month ago, and 33.4 cents more than one year ago.
The increases follow rising wholesale prices "related to unexpected breakdowns" at the Chevron refinery in El Segundo, the Phillips 66 refinery in Wilmington and the Shell refinery in Martinez, according to Marie Montgomery, a public relations specialist with the Automobile Club of Southern California.