Gas prices drop to an average $3.47 a gallon nationally. Memphis, Tenn., has seen gas prices drop to $3.04 for a gallon of regular unleaded, the lowest of any city in the Lundberg Survey of the Lower 48 states.
The average U.S. price of a gallon of gasoline has dropped 7 cents over 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 $3.47.
Midgrade costs an average of $3.65 a gallon, and premium is $3.78.
Diesel dipped 4 cents to $4.04 a gallon.