Mele Kyari, group chief executive officer (GCEO), Nigerian National Petroleum Company (NNPC) Limited, has said distribution problems, and greedy people at petrol depots and filling stations were the cause of petroleum scarcity in Nigeria. The NNPC Director stated this while appearing on NTA’s ‘Good Morning Nigeria‘ programme. SaharaReporters earlier reported that the price of premium motor spirit (PMS), otherwise called petrol, had gone up, with some fuel stations selling for as high as N400 per litre.