1. Avinoil S.A.
2. Bharat Petroleum Corporation Limited
3. BP PLC
4. CEPSA COMERCIAL PETR?LEO
S.A.U.
5. Chevron Corporation
6. China National Petroleum Corporation
7. Croda International PLC
8. ENEOS Corporation
9. Exxonmobil Corporation
10. Freudenberg Group
11. FUCHS Group
12. Gazprom Neft
13. Gulf Oil International Ltd
14. Hindustan Petroleum Corporation Limited
15. Idemitsu Kosan Co. Ltd.
16. Indian Oil Corporation Ltd.
17. Kl?ber Lubrication
18. Kuwait Dana Lubes Company
19. Mercuria Energy Group Limited
20. Motul S.A.
21. PJSC Lukoil Oil Company
22. PT Pertamina Lubricants
23. Ravensberger Schmierstoffvertrieb GmbH
24. Repsol S.A.
25. Shell PLC
26. TotalEnergies SE
27. Warren Oil Company
LLC
28. W?rth Group