Motorists queue to buy petrol at a fuel station in Ahaoda in Nigeria’s oil state in the Delta region, December 6, 2012. The growing fleet of tankers stuck off Nigeria unable to unload their cargoes of diesel and petrol is an even-present reminder for President Muhammadu Buhari that another fuel crisis is looming on the horizon. At least 75 ships with two and a half million tonnes of fuel are waiting for importers in Africa’s biggest economy to find the dollars they need to pay for the cargoes, according to ship tracking data and fuel traders. Some of the vessels arrived a month ago and their frustrated owners have almost given up hope and started to offer their fuel to buyers outside Nigeria, several traders told Reuters. A slump in world oil prices has hammered Nigeria’s state income and because crude sales are the government’s main source of revenue […]