Some slight increases overnight in gas, diesel and furnace oil prices. The Island Regulatory and Appeals Commission approved increases 1.5 cents per litre in gasoline prices, and 1.0 cent per litre in diesel and furnace oil prices. Including taxes, pump prices for regular self-serve gasoline now range from 186.2 to 187.3 cents per litre, and diesel costs between 204.0 and 205.2 cents per litre. The maximum price for furnace oil is 158.4 cents per litre.