The Association of Mega Filling Station Owners of Nigeria (AMFSON) has vowed to lock up their filling stations over pump price disparity, saying if the Minister of State for Petroleum Resources who also doubles as the Group Managing Director (GMD) of Nigerian National Petroleum Corporation (NNPC), Dr. Ibe Kachikwu, does not do anything about the situation, another round of fuel crisis looms. Addressing newsmen yesterday in Kaduna to express their grievances over the issue, National Secretary of AMFSON, Comrade Kenneth Nwachukwu, said the minister’s directive that some filling stations should sell for N130.00, N135.00, N140.00, and/or N145.00 per liter, was uncalled for. Nwachukwu said since all marketers buy the product from same source, it did not make economic sense to force one marketer to sell at a lower or higher price than the other.