Oil prices in the country will decline for the fourth straight week starting tomorrow amid easing global prices and regional demand.

In separate advisories on Monday, oil companies announced that gasoline prices have the largest reduction of P1.65 per liter, starting Tuesday morning, 27 September.

Diesel prices will also go down by P1.25 per liter and gasoline by P1.35 per liter.

Last week, diesel prices dropped by much as P4.15 per liter and kerosene by P4.45 per liter. Gasoline prices did not move.

The DoE data showed that as of 20 September, the cumulative increase in gasoline price remained at P16.50 per liter, diesel at P30.65 per liter, and kerosene at P25.45 per liter.

As of last week, the DoE monitoring showed that the price per liter of gasoline range from P63.10 to P73.10 per liter in Quezon City, Metro Manila's largest city.

Diesel prices, meanwhile, range from P75.80 to P80.10 in Makati City, the country's top financial hub.

In Manila, kerosene prices sell from P80.41 to P89.00 per liter

Oil companies announce price adjustments every Monday to be implemented on the following day's morning.

They adjust their prices weekly based on the movement of the Mean of Platts Singapore — the regional pricing benchmark adopted by the deregulated downstream oil sector.