1. AMSOIL Inc.
2. Bharat Petroleum Corporation Limited
3. BP PLC
4. Chevron Corporation
5. China National Petroleum Corporation
6. ENEOS Corporation
7. Exxon Mobil Corporation
8. Freudenberg Group
9. FUCHS Lubricants Co.
10. FUCHS PETROLUB SE
11. Gazprom Neft PJSC
12. Gulf Oil Lubricants India Ltd.
13. Hindustan Petroleum Corporation Limited
14. Idemitsu Kosan Co.Ltd.
15. Indian Oil Corporation Ltd.
16. Lukoil Oil Company
17. Motul S.A.
18. PETRONAS Lubricants International
19. Phillips 66 Company
20. PT Pertamina Lubricants
21. Ravensberger Schmierstoffvertrieb GmbH
22. Repsol S.A.
23. Royal Dutch Shell PLC
24. Sinopec Corporation
25. Tide Water Oil Co. (India) Ltd.
26. TotalEnergies SE
27. VALVOLINE CUMMINS PRIVATE LIMITED
28. Warren Oil Company
LLC
29. W?rth Group