The average national price of gasoline increased 7.6 cents in the past two weeks, according to a national survey released Sunday.
Oil industry analyst Trilby Lundberg says the average price of regular gasoline Friday was $1.85 a gallon. The price of mid-grade was $1.99 a gallon and the price of premium was $2.09 a gallon.
Of cities surveyed, the nation's lowest price was $1.44 in Billings, Mont. The highest price was $2.37 in Anchorage, Alaska.