Gas prices hit another record
National average price keeps climbing, with more than half the states paying $4 a gallon or more.
NEW YORK (CNNMoney.com) -- Gasoline prices as measured in the daily AAA survey hit yet another record Saturday.
The national average price for regular unleaded gasoline edged up slightly to $4.073 a gallon, according to the motorist group's Web site.
The average topped $4 for the first time last week after crude oil prices surged to a trading record above $139 per barrel. The price has swung back and forth in a $10 band since then.
Gas is most expensive in California, according to the survey, averaging $4.587, followed by Alaska at $4.416. The average price is $4 a gallon or more in more than half the states and the District of Columbia.
Missouri has the lowest average price at $3.839, followed by Oklahoma at $3.849.
Gasoline prices in the survey have risen 34 percent from a year ago when they averaged $3.029.
On its Web site, AAA says the information is gathered by Oil Price Information Service based on credit card swipes at 85,000 gasoline stations across the nation. 
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