AB SKF
Axel Christiernsson International AB
Bharat Petroleum Corporation Limited (BPCL)
BP plc (Castrol Limited)
Calumet Specialty Products Partners L.P. (Bel-Ray)
Chevron Corporation
China Petroleum & Chemical Corporation (Sinopec)
ENEOS Corporation
Eni S.p.A. ExxonMobil Corporation
Freudenberg Chemical Specialities SE & Co. KG (Kluber Lubrication)
Fuchs Petrolub SE
Gazpromneft Lubricants Ltd. Gulf Oil Lubricants India Ltd. HF Sinclair Corporation (Petro?Canada Lubricants Inc.)
Hindustan Petroleum Corporation Limited (HPCL)
Idemitsu Kosan Company Ltd. ORLEN OIL Sp. z o.o. Penrite Oil Co. Pty. Ltd. Petroliam Nasional Berhad
Petromin Corporation
PT Pertamina Lubricants
RN-Lubricants LLC
Shell plc
The Phillips 66 Company
The PJSC Lukoil Oil Company
TotalEnergies SE
Valvoline Inc.