(Bloomberg) -- The privatization agency in Africa’s largest economy plans to sell or allow private investors manage 36 state-owned assets to boost government revenues that has come under pressure from lower oil earnings.

Two free economic zones in the nothern city of Kano and Calabar in the oil region as well as power generation assets are among assets marked for sale, Alex Okoh, director-general of the Bureau of Public Enterprises said on Tuesday.

The power plants have the capacity to add 3,300 megawats to the nation’s electricity generation, while the economic zones will boost export earnings by about $2 billion over the next five to seven years, Okoh said.

Oil earnings in Africa’s top crude producer fell short of target by 49.5% in the first five months through May, the Ministry of Finance, Budget and Planning said in a report Tuesday. Non-oil revenue also fell below expectation by 24.9%, it said. The privatization will help attract capital to revamp the assets and raise cash to support the government amid declining budget income.

Moody’s Investors Service said in November that Africa’s most populous country requires at least $3 trillion investment over 30 years to close an existing infrastructure gap.

The agency is collaborating with the World Bank to develop about 100 projects to make them attractive to private investors, Amaechi Aloke, director of infrastructure and public private partnership at the BPE said.

Similarly, the Nigerian Sovereign Investment Authority plans to establish 20 health care centers to deepen medical infrastructure, through a partnership with co-investors, CEO Uche Orji said at the some conference.

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