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
Petróleos 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