In separate advisories, Pilipinas Shell, Petron and Unioil said they will increase their gasoline prices by P1.90 per liter, diesel by P1.50 per liter and kerosene by P2.
50 per liter.The price adjustments will take effect at 6 a.m.Industry players had said that the increase in prices is due to the continued cut in the production of oil by Saudi Arabia.