1. Aegis Logistics Ltd.
2. Air Liquide Australia
3. Auto Gas SA
4. BP PLC
5. China Petroleum & Chemical Corporation.
6. ConocoPhillips Company
7. EnviTec Biogas AG
8. Evonik
9. Exxon Mobil Corporation.
10. Indian Oil Corporation Ltd
11. INDIANOIL PETRONAS PRIVATE LIMITED
12. Indraprastha Gas Limited - IGL
13. National Gas Company
14. Origin Energy Limited
15. PETRONAS Dagangan Berhad
16. QatarEnergy
17. Reliance Gas
18. Royal Dutch shell PLC
19. SHV Energy
20. Suburban Propane
21. TotalEnergies SE
22. UGI Corporation
23. WP Energy Public Company Limited
24. W?rtsil? Corporation