Qatar Petroleum
Occidental Petroleum of Qatar Ltd. (OPQL)
Raslaffan Liquified Natural Gas Co. (Rasgas)
Dolphin Energy
Total E&P Qatar
Oryx GTL Limited
Qatar Fertiliser Company (QAFCO)
Qatargas Operating Company Limited (Qatargas)
Qatar Fuel Additives Company Limited (QAFAC)
Qatar Petrochemical Company Q.S.C (QAPCO)
Qatar Chemical Company Ltd (Q-Chem)
CB&I