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;49;State Grid Corporation of China *;CHN;Companies
5;136;China National Offshore Oil Corp *;CHN;Companies
6;289;China Railway Engineering Corp *;CHN;Companies
7;315;China Railway Group Ltd;CHN;Companies
8;375;China Railway Eryuan Engineering Group Co Ltd;CHN;Companies
9;513;China Coal Research Institute;CHN;Companies
10;995;Daqing Oilfield Co Ltd, CN;CHN;Companies