Oil marketers have explained that the future of Nigeria’s price of Premium Motor Spirit (Petrol) is unknown and difficult to predict. The President of the Petroleum Products Retail Outlet Owners Association, PETROAN, Bill Gillis-Harry, disclosed this in an interview with DAILY POST on Sunday. Speaking on the speculation that petrol prices may hit N1500 per litre by December, Gillis-Harry said, “Nothing is static”. According to him, it is difficult to predict the price of petrol due to the deregulation of the oil and gas sector. He noted that what the Nigerian government and the citizens should…