The national average price for a gallon of gas slips to $3.826. Only 10 states are above $4 a gallon.  

Retail gasoline prices fell, on average, a penny overnight, extending declines for the 23nd straight day, a survey of gas station credit card swipes showed Saturday.

The national average price for a gallon of regular gas fell to $3.826 from $3.836 the previous day. That's down 7% from the record high of $4.114 that gas prices hit on July 16.