OIL marketers lifting the Premium Motor Spirit, PMS, also known as petrol from Dangote Petroleum Refinery, have slashed the price of the product by 11.8 per cent to N939.50 per litre, from N1,060 per litre.As of yesterday, the oil marketers were still selling petrol at N1,060 per litre, based on checks in Lagos and its environs.But the checks today indicated that MRS, a maj...