33 ranked institutions
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1 (5)China National Petroleum Corp *CHNCompany
2 (6)PetroChina Co LtdCHNCompany
3 (13)China Petroleum and Chemical Corporation *CHNCompany
4 (17)Science System and Applications, IncUSACompany
5 (49)State Grid Corporation of China *CHNCompany
6 (61)Schlumberger *MULCompany
7 (82)Saudi Arabian Oil Co, USAUSACompany
8 (92)Aramco *MULCompany
9 (96)TotalEnergies *MULCompany
10 (122)Saudi Arabian Oil Co, Saudi ArabiaSAUCompany
11 (126)Shell *MULCompany
12 (136)China National Offshore Oil Corp *CHNCompany
13 (148)TotalEnergies, FranceFRACompany
14 (151)Chevron CorpUSACompany
15 (158)Equinor ASA, NorwayNORCompany
16 (165)Schlumberger, United StatesUSACompany
17 (172)Equinor ASA *MULCompany
18 (199)Shell, NetherlandsNLDCompany
19 (285)Petrobras *MULCompany
20 (289)China Railway Engineering Corp *CHNCompany
21 (295)Petrobras, BrazilBRACompany
22 (310)GNS ScienceNZLCompany
23 (315)China Railway Group LtdCHNCompany
24 (360)ExxonMobil, USAUSACompany
24 (360)ExxonMobil *MULCompany
26 (375)China Railway Eryuan Engineering Group Co LtdCHNCompany
27 (513)China Coal Research InstituteCHNCompany
28 (610)Ormat Technologies, United StatesUSACompany
28 (610)Ormat Technologies Inc *MULCompany
30 (643)Exploration and Petroleum Engineering Advanced Research Center, SAUSAUCompany
31 (995)Daqing Oilfield Co Ltd, CNCHNCompany
32 (1098)Gazprom Group, Russian FederationRUSCompany
33 (1124)Gazprom Group *MULCompany