CAMARILLO, Calif. (April 21, 2013)--The average U.S. price of a gallon of gasoline has dropped 11 cents over the past two weeks, according to the Lundberg Survey of fuel prices released Sunday.
The survey shows the price of a gallon of regular is $3.54.
Midgrade costs an average of $3.72 a gallon, and premium is $3.86.
Diesel was down seven cents to $3.98 gallon.
Of the cities surveyed in the lower 48 states, Tulsa, Okla. had the nation's lowest average price for gas at $3.21 while Chicago had the highest at $3.97.