Obat Oil and Petroleum Plot 422, Euphrate/Negro Crescent, Off Aminu Kano Crescent +234 9 4136058, (0)803 7865003 Upstream Exploration & Production
Obekpa Petroleum Ltd 20B, Mainland Way, Dolphin Estate +234 1 2673706 Upstream Exploration & Production
Oriental Energy Resources Limited Plot 308 Younis Bashorun Street +234 1 2613789, 2624041 Upstream Exploration & Production
Pan Ocean Oil Coporation Nig Ltd Plot 17, Ligali Ayorinde Street +234 1 2610906, 2610494, 4616030-9 Upstream Exploration & Production
Peak Petroleum Industries 12, Adetokunbo Ademola Street +234 1 2623820-4 Upstream Exploration & Production
Petro Energy Resources Plot 39 Trans Amadi Industrial Layouts +234 84 461144, 461685, (0)803 3995386 Upstream Exploration & Production
Petro Energy Resources Suite 2F Princess Court, 37 Ahamed Onibudu Street +234 1 4613776, (0)803 3995386 Upstream Exploration & Production
Petroleo Brasileiro Nigeria Limited Plot 1679, Karimu Kotun Street +234 1 2626704 Upstream Exploration & Production
Petroleum Prospects International Limited 21B, Oju Olobun Close +234 1 2620960 Upstream Exploration & Production
Petroleum Prospects International Ltd 25 Sanusi Fafunwa Street +234 1 610221, 618494, 2620960 Upstream Exploration & Production