Before Isaac makes landfall, the storm is impacting Tulsa area gasoline prices. With oil rigs closing in the Gulf of Mexico ahead of the storm, gasoline prices in Tulsa took a huge jump again in Tulsa. The price of regular unleaded increased to $3.69 per gallon.
Despite the increase Tulsa is still below the national average. The average U.S. price of a gallon of gasoline has jumped 7 cents over the past two weeks. That's according to the Lundberg Survey of fuel prices, which puts the price of a gallon of regular at $3.76.
Midgrade costs an average of $3.91 a gallon, and premium is at $4.04. Diesel rose 13 cents to $4.05 a gallon.
Of the cities surveyed in the lower 48 states, El Paso, Texas, has the nation's lowest average price for gas at $3.32. Chicago has the highest at $4.22.