Rank;Global Rank;Institution;Country;Sector
1;5;China National Petroleum Corp *;CHN;Companies
2;6;PetroChina Co Ltd;CHN;Companies
3;13;China Petroleum and Chemical Corporation *;CHN;Companies
4;17;Science System and Applications, Inc;USA;Companies
5;49;State Grid Corporation of China *;CHN;Companies
6;61;Schlumberger *;MUL;Companies
7;82;Saudi Arabian Oil Co, USA;USA;Companies
8;92;Aramco *;MUL;Companies
9;96;TotalEnergies *;MUL;Companies
10;122;Saudi Arabian Oil Co, Saudi Arabia;SAU;Companies
11;126;Shell *;MUL;Companies
12;136;China National Offshore Oil Corp *;CHN;Companies
13;148;TotalEnergies, France;FRA;Companies
14;151;Chevron Corp;USA;Companies
15;158;Equinor ASA, Norway;NOR;Companies
16;165;Schlumberger, United States;USA;Companies
17;172;Equinor ASA *;MUL;Companies
18;199;Shell, Netherlands;NLD;Companies
19;285;Petrobras *;MUL;Companies
20;289;China Railway Engineering Corp *;CHN;Companies
21;295;Petrobras, Brazil;BRA;Companies
22;310;GNS Science;NZL;Companies
23;315;China Railway Group Ltd;CHN;Companies
24;360;ExxonMobil, USA;USA;Companies
24;360;ExxonMobil *;MUL;Companies
26;375;China Railway Eryuan Engineering Group Co Ltd;CHN;Companies
27;513;China Coal Research Institute;CHN;Companies
28;610;Ormat Technologies, United States;USA;Companies
28;610;Ormat Technologies Inc *;MUL;Companies
30;643;Exploration and Petroleum Engineering Advanced Research Center, SAU;SAU;Companies
31;995;Daqing Oilfield Co Ltd, CN;CHN;Companies
32;1098;Gazprom Group, Russian Federation;RUS;Companies
33;1124;Gazprom Group *;MUL;Companies