ISLAMABAD - Prime Minster Syed Yousaf Raza Gilani has taken a strict notice over the shortage of petrol in the Punjab province. While taking a strict notice over the shortage of petrol in various parts of the province on Tuesday, the Prime Minister directed to the Petroleum Ministry to ensure the smooth supply of petrol across the province. The spokesperson of Prime Ministers House informed that the PM had also instructed to the Petroleum Ministry to end the differences in demand and supply of petrol in the province while all Refineries make sure to provide petrol according to their efficiency.