Published: Jul 11, 2011 12:35 AM EDT
Updated: Jul 10, 2011 11:36 PM EDT

 CAMARILLON, Calif. (AP) - The average U.S. price of a gallon of gasoline has dropped about a penny in the past two weeks.
 
That's according to the Lundberg Survey of fuel prices, released Sunday, which puts the price of a gallon of regular at $3.62.
 
Midgrade costs an average of $3.76 a gallon and premium was at $3.98.
 
Diesel was up about a nickel, to $3.95 a gallon.
 
Of the cities surveyed, Phoenix had the nation's lowest average price for gas at $3.30. Chicago had the highest at $4.03.