1. Anadarko Petroleum Corporation
2. BP Plc
3. Cheniere Energy Inc.
4. Chevron Corporation
5. China National Petroleum Corporation
6. ConocoPhillips Company
7. Eni S.p.A
8. Equinor ASA
9. Exxon Mobil Corporation
10. INPEX Corporation
11. Linde GmbH
12. National Iranian Oil Company
13. PetroChina Company Limited
14. Petronet LNG Limited
15. Royal Dutch Shell PLC
16. Snam S.p.A