Gas prices rise above $4 in Chicago and Long Island.

Average national gas prices have hit another record high on May 16, climbing to $3.7929 a gallon for regular gasoline. At the same time, average gas prices rose above $4 a gallon in Chicago and New York’s Long Island for the first time. Trilby Lundberg, the editor of the nationwide Lundberg survey of about 7,000 gas stations, says that gas prices “could rise to $4 a gallon on a national average basis.”