Gasoline prices nationwide dropped an average of nearly one cent per gallon during the past two weeks, and more price drops can be expected, an industry analyst said Sunday.

Results of the latest twice-monthly survey of 12,000 gas stations for the period from Sept. 23 to Oct. 7 shows an average price for all grades, including taxes, of $1.0077 cents a gallon, Trilby Lundberg, editor of the Lundberg Survey, said.The average was down about one penny from the previous survey, Lundberg said.