- Oil Exploration Company
- Iraqi Drilling Company
- North Oil Company
- Basra Oil Company
- Dhi Qar Oil Company
- Middle Oil Company
- Maysan Oil Company
- Oil Projects Company
- North Refineries Company
- South Refineries Company
- Middle Refineries Company
- Oil Pipelines Company
- Gas filling company
- North Gas Company
- South Gas Company
- Oil Products Distribution Company
- Iraqi Oil Tanker Company
- Oil Marketing Company (SOMO)
- Oil Research and Development Center
- Oil Training Institute – Baghdad
- Petroleum Training Institute – Baiji
- Oil Training Institute – Kirkuk
- Petroleum Training Institute – Basra
English 
العربية