The top 20 companies have contributed to 480bn tonnes of carbon dioxide equivalent since 1965
Billion tonnes of carbon dioxide equivalent
State
Investor-owned
0
10
20
30
40
50
Saudi Aramco 59.26
Chevron 43.35
Gazprom 43.23
ExxonMobil 41.90
National Iranian Oil Co 35.66
BP 34.02
Royal Dutch Shell 31.95
Coal India 23.12
Pemex 22.65
PetrĂ³leos de Venezuela 15.75
PetroChina 15.63
Peabody Energy 15.39
ConocoPhillips 15.23
Abu Dhabi National Oil Co 13.84
Kuwait Petroleum Corp 13.48
Iraq National Oil Co 12.60
Total SA 12.35
Sonatrach 12.30
BHP Billiton 9.80
Petrobras 8.68