Oil Company - Port Harcourt
Selsteel Construction Company Nigeria Limited - Port Harcourt
28 Ogbunnike Street. Port Harcourt.Rivers.
Saipem Contracting Nig Ltd - Port Harcourt
New Operational Base. Port Harcourt.Rivers.
Rich -Tex Drilling Oil Co. Nig Ltd - Port Harcourt
18, Akaniwo Lane Orazi .. Port Harcourt.Rivers.
Wokemson Nigeria Limited - Port Harcourt
30, Abonema Wharf Road. Port Harcourt.Rivers.
Oil Resources Development Co Nig Limited - Port Harcourt
Izzi Shopping Plaza, Ph/Aba Exp.Way. Port Harcourt.Rivers.
Petro Dynamics - Port Harcourt
104, Trans Amadi Industrial Layout. Port Harcourt.Rivers.
Solang Investment Ltd - Port Harcourt
19, Old Aba Road, Catepillar House. Port Harcourt.Rivers.
Moni Pulo Limited - Port Harcourt
5, Odoni Street, Amadi Flats. Port Harcourt.Rivers.
Nrb Drillings Services Limited - Port Harcourt
Plot 97, Rumogba Estate, P. O. Box 8233. Port Harcourt.Rivers.
Mekab Berachah - Port Harcourt
152/184. Port Harcourt.Rivers.
Pgi Oil & Gas - Port Harcourt
27, Njamanze Street, Mile 1. Port Harcourt.Rivers.
Solicom Limited - Port Harcourt
40, Aba Road. Port Harcourt.Rivers.
Petro Stuff Nigeria Ltd - Port Harcourt
Plot 477, Trans Amadi Industrial Layout. Port Harcourt.Rivers.
Empromex Limited - Port Harcourt
Plot 182, Estate, P.O. Box 13799,, Rivers State. Port Harcourt.Rivers.
Japaul Oil & Marine Services PLC - Port Harcourt
Plot 39, Eastern By-Pass, Marine Base, P. O. Box 12932. Port Harcourt.Rivers.
Dupre International Nigeria Limited - Port Harcourt
47,, Rivers State. Port Harcourt.Rivers.
Central Oil Engineering Co. Ltd - Port Harcourt
Elimgbu Plot 10. Port Harcourt.Rivers.
Coricks Nigeria Ltd - Port Harcourt
Plot 130, Housing Estate, Rumubiakani, Rumuogba, Rivers. Port Harcourt.Rivers.
Ge Oil & Gas - Port Harcourt
Plot 13. Port Harcourt.Rivers.
Klazix Oil & Gas Ltd. - Port Harcourt
30A Danjuma Drive. Port Harcourt.Rivers.
Worldwide Petroleum Services (Wa) Limited - Port Harcourt
Plot 175. Port Harcourt.Rivers.
Gevixx Marine & Oil Services Ltd - Port Harcourt
Plot 71, Stadium Road. Port Harcourt.Rivers.
Fode Genesis Limited - Port Harcourt
14, Street, Gra Phase Ii,, Rivers State. Port Harcourt.Rivers.
Techint Cimi Montubi Nig. Ltd - Port Harcourt
Plot 6, Elelenwo Street Gra Phase1. Port Harcourt.Rivers.
Waterwell Services Ltd. - Port Harcourt
Lansar House, 219, Port-Harcourt-Aba Road. Port Harcourt.Rivers.