Oil Major Companies

• Aramco

• National Iranian Oil Company

• Qatar Petroleum

• Abu Dhabi National Oil Company ADNOC

• Nigerian National Petroleum Corporation

• Bharat Petroleum Corporation Limited

• British Petroleum

• Chevron Corporation

• ConocoPhillips Company

• Cosmo Oil Company, Limited

• Marathon Oil Corp

• Indian Oil Corporation Limited

• Nippon Oil Corporation

• CNOOC

• PetroChina Company Limited

• Petroliam Nasional Berhad (PETRONAS)