The average U.S. price of a gallon of gasoline has dropped 7 cents over the past two weeks.
That's according to the latest Lundberg Survey of fuel prices, which puts the price of a gallon of regular at $3.47.
Midgrade costs an average of $3.65 a gallon, and premium is $3.78.
Diesel dipped 4 cents to $4.04 a gallon.
Of the cities surveyed in the lower 48 states, Memphis, Tenn., has the nation's lowest average price for gas at $3.04. Long Island, N.Y., has the highest at $4.18.
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