I think there is a segment of NNPC that is responsible for price regulation of PMS and other products that involves crude, I think they are called DPR. However, one of the major issues is the fact that the federal government has removed fuel subsidy and there's a total deregulation of the market allowing independent marketers to sell at almost their will, although the federal government has put a caveat as to the amount petrol should be sold but it's not really effective because the market is deregulated totally.
Exactly. Petrol stations will sell based on the price they bought from marketers or refineries. Since the market is now controlled by the forces of supply and demand the prices cannot be stable. The price was stable before because the government was subsidizing petroleum products. But now, as crude prices fluctuate, the prices of fuel and other products also change.