Fuel oil (Malaysia) increase again?

Just now I receive a friend sms me that petrol oil price in Malaysia will be increase again since last year increase. In the sms say petrol oil will be increase RM0.20 per liter and effective on 01/01/2008.
This news will be announce after 10pm, 31/12/2007.
Since on today newspaper have report on petrol price may be increase RM0.30 to RM0.40. At this moment still not sure which one is exact amount, but definitely petrol oil price will be increase again.
Example:
before 31/12/2007 RM1.92 per liter RM50 = 26.04 liter
after 01/01/2008 RM2.12 per liter RM50 = 23.58 liter

or

before 31/12/2007 RM1.92 per liter 26.04 liter = RM50.00
after 01/01/2008 RM2.12 per liter 26.04 liter = RM55.20

10% increase for petrol oil and hope this increasing will be once a year...