A man carries empty petrol containers outside the NNPC mega petrol station in Abuja, Nigeria May 25, 2015. (Photo by Afolabi Sotunde/Reuters)

Motorists gather at the NNPC mega petrol station in Abuja, Nigeria May 25, 2015. (Photo by Afolabi Sotunde/Reuters)

A motorist reacts outside the NNPC mega petrol station Abuja, Nigeria May 25, 2015. (Photo by Afolabi Sotunde/Reuters)

A man sits behind containers containing petroleum near the Area 10 shopping centre in Abuja, Nigeria May 25, 2015. Nigerian fuel marketers agreed to resume distribution on Monday after weeks of disruption led to chronic fuel shortages, bringing phone companies, banks and airlines to a standstill days before the inauguration of the country's new president. (Photo by Afolabi Sotunde/Reuters)

Security peronnel speak with a motorist as they face fuel scarcity outside the NNPC mega petrol station in Abuja, Nigeria May 25, 2015. (Photo by Afolabi Sotunde/Reuters)

A man pours petrol into a car tank outside the NNPC mega petrol station in Abuja, Nigeria May 25, 2015. (Photo by Afolabi Sotunde/Reuters)

Diesel is poured into a container at theArea 10 shopping centre in Abuja, Nigeria May 25, 2015. (Photo by Afolabi Sotunde/Reuters)

A woman holding her baby argues with a man outside the NNPC mega petrol station in Abuja, Nigeria May 25, 2015. (Photo by Afolabi Sotunde/Reuters)

A woman holding her baby argues with a man outside the NNPC mega petrol station in Abuja, Nigeria May 25, 2015. (Photo by Afolabi Sotunde/Reuters)

A man pours petrol into a car tank outside the NNPC mega petrol station in Abuja, Nigeria May 25, 2015. (Photo by Afolabi Sotunde/Reuters)

A man hawks petrol in a container outside the NNPC mega petrol station in Abuja, Nigeria May 25, 2015. (Photo by Afolabi Sotunde/Reuters)

A man seen pouring diesel into a container next to power generators at the Area 10 shopping centre in Abuja, Nigeria May 25, 2015. (Photo by Afolabi Sotunde/Reuters)

A man is seen working on power generators at the Area 10 shopping centre in Abuja, Nigeria May 25, 2015. (Photo by Afolabi Sotunde/Reuters)

People sit at tables at a business shopping centre located in Area 10 in Abuja, Nigeria May 25, 2015. (Photo by Afolabi Sotunde/Reuters)

A man works on the engine of his car, as motorists gather at a petrol station of state-owned energy company Nigerian National Petroleum Corporation (NNPC) in Abuja, Nigeria May 25, 2015. Chronic fuel shortages in Nigeria brought phone firms, banks and flights to a standstill on Monday, just four days before Muhammadu Buhari's inauguration as president of Africa's biggest economy and top oil exporter. (Photo by Afolabi Sotunde/Reuters)

A woman with a baby on her back talks to others about her need for petrol to run her power generator, at the Area 10 shopping centre in Abuja, Nigeria May 25, 2015. (Photo by Afolabi Sotunde/Reuters)

Men who work as tyre vulcanizers carry a piece of equipment across a road packed with vehicles waiting outside a petrol station of state-owned energy company Nigerian National Petroleum Corporation (NNPC) in Abuja, Nigeria May 25, 2015. (Photo by Afolabi Sotunde/Reuters)

A woman carrying a baby argues with a man outside a petrol station of state-owned energy company Nigerian National Petroleum Corporation (NNPC) in Abuja, Nigeria May 25, 2015. (Photo by Afolabi Sotunde/Reuters)

A man walks toward a Guaranty Trust (GT) Bank building in the central business district in Abuja, Nigeria May 25, 2015. (Photo by Afolabi Sotunde/Reuters)

A man siphons petrol from a container at Area 10 shopping centre in Abuja, Nigeria May 25, 2015. (Photo by Afolabi Sotunde/Reuters)