Qatar Petroleum

Occidental Petroleum of Qatar Ltd. (OPQL)

Maersk Oil Qatar

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