Gas prices nationally are up 11 cents over past few weeks. Lowest gas prices of cities surveyed? Tulsa, Okla., with $3.58 a gallon.
The average U.S. price of a gallon of gasoline has jumped 11 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 $3.93.
Midgrade costs an average of $4.07 a gallon, and premium is at $4.18.
Diesel was up a nickel, to $4.20.