PORTLAND – A Maine government survey says the average price of heating oil in the state dropped 5 cents from the end of September to $3.27 per gallon. The Governor’s Energy Office said Thursday that the average statewide price for a gallon of heating oil ranged from $2.88 to $3.60. It also found the average price of kerosene was five cents less than the end of last month at $3.83 per gallon.