Motorists can expect gasoline prices to drift slightly lower over the rest of the summer, but most of the declines are over, analysts said, as the average for a gallon of regular in California reached $3.794 and stood at $3.579 nationally.
The price averages are calculated by the Energy Department's Energy Information Administration, which uses a telephone survey of gas stations across the U.S.
California's average price fell 4.5 cents a gallon in the last week, according to the weekly survey. Prices have dropped an average of 46.3 cents a gallon since May 2, the department said.
Nationally, the price rose an average of 0.5 cent to $3.579 a gallon, largely because of continuing problems with refineries in the Midwest, where the average price jumped by 10.1 cents over the last week to $3.595 a gallon. The national average peaked at $3.965 a gallon on May 9.