SLO County's gas prices are most expensive in California

San Luis Obispo County once again has the most expensive gasoline in California, according to an AAA report based on data from Oil Price Information Service.

The survey Thursday found the average price for regular unleaded in the San Luis Obispo-Atascadero-Paso Robles area was $4.250 per gallon, compared with a statewide average of $4.163.

In September 2011, the price was $4.009, and for the same month in 2010, it was $3.065. The highest recorded average price for unleaded gas in the county was $4.681 in June 2008, according to AAA.

This week’s local gas price is fractionally more expensive than San Franciscos $4.244.

The cheapest gas reported in the 25 California markets surveyed was $4.069 in Yuba City, north of Sacramento.

In a different report, done by the Lundberg Survey, the average U.S. price for a gallon of gasoline was up nearly 7.85 cents in the past two weeks to $3.838 a gallon.

The national average increased during the past two weeks as Hurricane Isaac shut refineries along the Gulf Coast.

The U.S. average is up 17 cents from a year earlier. Gasoline is 13 cents below the year-to-date high of $3.9671 on April 6.

The Lundberg Survey covered the two weeks ending Sept. 7.

The highest price in the Lower 48 states among the markets surveyed was in Chicago, where the average was $4.30 a gallon. The lowest price was in El Paso, Texas, where the average was $3.44 a gallon.