Rank;Global Rank;Institution;Country;Sector
1;73;State Grid Corporation of China *;CHN;Companies
2;267;Petrobras, Brazil;BRA;Companies
3;363;China National Offshore Oil Corp *;CHN;Companies
4;441;Marine Design and Research Institute of China;CHN;Companies
5;522;China National Petroleum Corp *;CHN;Companies
6;534;China Petroleum and Chemical Corporation *;CHN;Companies