ABUJA- Nigeria's President Muhammadu Buhari said on Sunday he has appointed a board for state-oil firm NNPC and directed that it should be incorporated.

The new oil law requires NNPC to be incorporated within six months, Buhari, who doubles as minister of petroleum, said in a statement.

(Reporting by Felix Onuah; Writing Chijioke Ohuocha; Editing by Alexander Smith) ((chijioke.ohuocha@thomsonreuters.com; +234 703 4180 621; Reuters Messaging: chijioke.ohuocha.thomsonreuters@reuters.net))