7 ranked institutions
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1 (26)Aramco *MULCompany
2 (49)Schlumberger *MULCompany
3 (54)ExxonMobil *MULCompany
4 (58)TOTAL *MULCompany
5 (64)Shell *MULCompany
6 (95)Equinor ASA *MULCompany
7 (402)Petrobras *MULCompany