OPEC

13 countries are there in opec and 10 oil producing allies including Russia.

1. IRAN 

2. IRAQ.

3 KUWAIT

4. Saudi Arabia 

5. Venezuela 

These above are founding members. 

    Full members

6.Algeria

7. Angola

8.Congo.

9 Equatorial  guinea.

10. Gabon

11.libya

12 Nigeria.

13.UAE