1. Air Liquide
2. Bharat Petroleum
3. Blazer Products Inc.
4. British Petroleum
5. Chevron Corp.
6. ConocoPhillips Inc.
7. Egypt Oil & Gas
8. Exxon Mobil Corp.
9. Hindustan Petroleum Corporation Limited
10. Indian Oil Corporation Ltd.
11. Linde PLC
12. Royal Dutch Shell PLC
13. Sinopec Group
14. TotalEnergies SE
15. Valero Energy Corporation