OIL companies rolled back fuel prices on Tuesday.The cost of gasoline was lowered by 75 centavos per liter and diesel prices by 90 centavos per liter.Kerosene had the biggest cut of P1.05 per liter.Last week, oil companies also cut the price of gasoline by 25 centavos, diesel by 45 centavos and kerosene by 90 centavos.So far this year, the price of gasoline has risen by P10, diesel by P5.60 and kerosene by 25 centavos.