The Petroleum Products Retail Outlets Owners Association of Nigeria, PETROAN, has urged the Nigerian National Petroleum Company Limited, NNPCL, to slash its ex-depot price of Premium Motor Spirit, PMS, commonly known as petrol. The spokesperson for PETROAN, Joseph Obele, made this call in a statement on Thursday. This comes after Dangote Refinery reduced its ex-depot petrol price to N899.50 per …