Rank;Global Rank;Institution;Country;Sector
1;19;China National Petroleum Corp *;CHN;Companies;
2;24;PetroChina Co Ltd;CHN;Companies;
3;32;China Petroleum and Chemical Corporation *;CHN;Companies;
4;140;China National Offshore Oil Corp *;CHN;Companies;
5;267;SINTEF Group *;NOR;Companies;
6;320;PowerChina Huadong Engineering Corp Ltd, China;CHN;Companies;
7;455;Petrobras *;MUL;Companies;
8;586;ExxonMobil *;MUL;Companies;
9;600;Petrobras, Brazil;BRA;Companies;
10;681;GNS Science;NZL;Companies;
11;696;Shell *;MUL;Companies;