1. The Shell Petroleum Development Company of Nigeria Limited. (SPDC Lagos, Warri and Port Harcourt)

2. Total Exploration & Production Nigeria Limited

3. Mobil Producing Nigeria Unlimited

4. Nigeria Agip Oil Company Limited (NAOC)

5. Agip Energy and Natural Resources Nigeria Limited (AENR)

6. International Petroleum Company (IPCO)

7. Aluminum Smelter Company of Nigeria Limited (ALSCON)

8. Michelin Nigeria Limited

9. Protrack Shipping Nigeria Limited

10. New Genesis Executive Security Limited

11. Nigeria Liquefied Natural Gas Limited, Bonny (NLNG)

12. Ponticelli Nigeria Limited

13. Solstad Offshore

14. Profield Nigeria Limited for Enterprise Philippe Lassarat S.A.

15. Craig Group

16. Pangasari Services Singapore/APAC Foods and Services

17. Nigeria LNG

18. CSoffshore