1. AMSOIL Inc.
2. Bharat Petroleum Corporation Limited
3. BP PLC
4. Chevron Corporation
5. China National Petroleum Corporation
6. China Petroleum & Chemical Corporation
7. ENEOS Corporation
8. Exxon Mobil Corporation
9. Fuchs Petrolub SE
10. Gazprom Neft PJSC
11. Gulf Oil Lubricants India Limited
12. Hindustan Petroleum Corporation Limited
13. Illinois Tool Works Inc.
14. Indian Oil Corporation Ltd.
15. Lukoil Oil Company
16. Motul S.A.
17. Oscar Lubricants LLC
18. PETRONAS Lubricants International Sdn. Bhd.
19. Petr?leo Brasileiro S.A.
20. Phillips 66 Company
21. PT Pertamina Lubricants
22. Repsol S.A.
23. Royal Dutch Shell PLC
24. Saudi Arabian Oil Company
25. Savsol Lubricants
26. SK Lubricants Co. Ltd
27. TotalEnergies SE
28. Valvoline Inc.
29. Veedol International Limited
30. ???Freudenberg SE