Islamabad, Nov 22 (INP) – The petrol and diesel prices are expected to decrease by 2 to 3 rupees per liter on Thursday after a decline in crude oil rate in international market. Earlier, on November 14, the oil markets fell sharply, extending losses from a 7-8 percent plunge the previous session as surging supply and the specter of faltering demand scared off investors. According to experts, following the drop in the oil prices in international market, petroleum prices are likely to decrease to lower level of current year. Inp/khan