Adinath Chemicals
Apar Industries Limited
Bharat Petroleum Corporation Limited (BPCL)
Calumet Specialty Products Partners L.P. Chevron Corporation (Chevron Al Khalij)
China Petrochemical & Chemical Corporation (Sinopec)
ENEOS Corporation (JXTG Nippon Oil & Energy Corporation)
ExxonMobil Corporation
Fuchs Petrolub SE
H&R GROUP
Hainan Handi Sunshine Petrochemical Co. Ltd. (HDS)
HF Sinclair Corporation (Sonneborn LLC)
Nandan Petrochem Ltd. (NPL)
Nynas AB
Oxiteno S.A. Panama Petrochem Limited
Raj Petro Specialities Pvt. Ltd. Renkert Oil LLC
Sasol Limited
Savita Oil Technologies Limited
Seojin Chemical Co. Ltd. Shell plc
TotalEnergies SE