TAQA Atrush B.V.
Heritage Oil Plc
Pakistan Exploration Limited
ENI Pakistan Limited
Mari Petroleum Company Limited
Taq Taq Operating Co.
PGNiG - Polish Oil & Gas Co. Pakistan
OMV Petroleum Exploration GmbH
Oil & Gas Development Company
Reliance Exploration & Production
KAR Group
BP Pakistan
Pakistan Oilfields Limited
Hunt Oil Company
ORYX Petroleum
Saif Energy (Pakistan) Limited
BHP Billiton
General Exploration Partners (KRG)
Petronas Carigali (Pakistan) Limited
HKN Energy Ltd
Pakistan Petroleum Limited
Spud Energy
MOL Kalegran (KRG) & MOL Pakistan
Dewan Petroleum Limited