LAGOS, June 6 (Reuters) - Nigeria's Department of Petroleum
Resources has revoked six oil block licenses due to "legacy
debts", it said in a public notice on Thursday.
The notice, carried in some Nigerian newspapers, said the
move was "in furtherance of the presidential directive".
The oil mining leases (OML) and oil prospecting licences
(OPL) affected are OML 98, 120, 121, 108 and 110, as well OPL
206.
A spokesman for the president declined to comment.