Petron and Flying V said they were adjusting their pump prices effective 12:01 this Monday morning, and Phoenix Petroleum was set to implement newly adjusted prices from 6 a.m., also today.
Petron announced a 75-centavo cut per liter on its gasoline, a 35-centavo hike per liter for diesel and a 25-centavo increase per liter for kerosene.
Flying V was set to roll back its gas prices by 90 centavos per liter and hike diesel prices by 40 centavos per liter.
Phoenix Petroleum, meanwhile, said it was cutting the price of gasoline by 75 centavos per liter, and hiking diesel prices by 35 centavos per liter.
Shell also will cut the gasoline by 75 centavos per liter, kerosene increase 25 centavos per liter and diesel 35 centavos per liter.
Other companies have yet to announce their price adjustments.