THE Department of Energy (DOE) said prices of diesel and kerosene may go down next week while the cost of gasoline may either increase or remain as it is.DOE-Oil Industry Management Bureau (DOE-OIMB) Director Rino Abad said there is a high possibility that prices of diesel and kerosene will decrease by P2.50 to P3 per liter and P3 per liter, respectively.He said for gasoline, adjustment is still “not yet sure” but the only possibility is that its price will go up or will be unchanged.Oil firms usually announce price adjustment during Mondays, a day prior to its effectiveness.On September 13, petroleum companies implemented a pump price rollback of P.45 per liter on gasoline, P1.45 per liter on diesel and P1.70 on kerosene. (SunStar Philippines)