The environmental statistics were derived from data provided by the following companies:
2019 |
ADNOC
|
AkerBP
|
Assala Energy
|
BHP
|
BP
|
BW Energy
|
Cairn Energy
|
CEPSA EP
|
Chevron
|
CNOOC
|
ConocoPhillips
|
Dolphin Energy
|
ENI
|
Equinor ASA
|
ExxonMobil
|
GENEL
|
Gulf Keystone
|
Hess Corporation
|
Husky Energy
|
INPEX Corporation
|
KMG
|
Kosmos Energy
|
Kuwait Oil Company
|
MOL
|
Neptune Energy
|
North Oil Company
|
Oil Search
|
OMV
|
Pan American Energy
|
Petrobras
|
PGNiG
|
Pluspetrol
|
Premier Oil
|
PTTEP
|
Shell Companies
|
SOCAR
|
Sonangol
|
Suncor
|
Total
|
Tullow Oil
|
Wintershall Dea
|
Woodside
|
|
2018 |
ADNOC
|
AkerBP
|
Assala Energy
|
BP
|
Cairn Energy
|
CEPSA EP
|
Chevron
|
CNOOC
|
ConocoPhillips
|
DEA
|
Dolphin Energy
|
ENI
|
Equinor ASA
|
ExxonMobil
|
GeoPark
|
Gulf Keystone
|
Hess Corporation
|
Husky Energy
|
INPEX Corporation
|
KMG
|
Kosmos Energy
|
Kuwait Oil Company
|
MOL
|
Neptune Energy
|
Nexen Inc
|
North Oil Company
|
Oil Search
|
OMV
|
Pan American Energy
|
Petrobras
|
PGNiG
|
Pluspetrol
|
Premier Oil
|
PTTEP
|
Repsol
|
Shell Companies
|
SOCAR
|
Sonangol
|
Suncor
|
Total
|
Tullow Oil
|
Wintershall
|
Woodside
|
|
2017 |
ADNOC
|
Anadarko Petroleum Corporation
|
Assala Energy
|
BP
|
Cairn Energy
|
CEPSA EP
|
Chevron
|
CNOOC
|
ConocoPhillips
|
DEA
|
Dolphin Energy
|
Dragon Oil
|
ENI
|
Equinor ASA
|
ExxonMobil
|
Galp Energia
|
GeoPark
|
Gulf Keystone
|
Hess Corporation
|
Husky Energy
|
INEOS Oil & Gas
|
INPEX Corporation
|
KMG
|
Kosmos Energy
|
Kuwait Oil Company
|
MOL
|
Neptune Energy
|
North Oil Company
|
Oil Search
|
OMV
|
Pan American Energy
|
Petrobras
|
PGNiG
|
Pluspetrol
|
Premier Oil
|
PTTEP
|
Repsol
|
Sasol
|
Shell Companies
|
Suncor
|
Total
|
Tullow Oil
|
Wintershall
|
Woodside
|
|