The new prices in the cost of fuel in Panama that will take effect on Friday, December 3, According to the National Energy Secretariat, 95 octane gasoline shows a drop of four cents to 93 cents per liter for the cities of Panama and Colón and 91 octane gasoline of will drop three cents to 90 cents a liter. Low sulfur will drop four cents, to 81 cents a liter.