President Muhammadu Buhari on Wednesday met behind close-doors with the Group Managing Director of the Nigeria National Petroleum Corporation (NNPC) Mr Mela Kyari at the Presidential Villa in Abuja.
Kyari declined to comment on the agenda of the meeting.
The meeting was held amidst escalating tension between Iran and the United States of Americans over the killing of an Iranian commander by the latter and the subsequent retaliatory attacks on military bases housing American troops in Iraq.
The president is the Minister of Petroleum Resources.
Brent crude, the global benchmark, gained 2.4% to reach $70.24 per barrel on Monday, the first time prices have hit that amount in more than seven months.