Oil & Gas Development Company Ltd.

OMV Pakistan Exploration GmbH.

British Petroleum Pakistan Exploration and Production Inc.

ENI Pakistan Limited

MOL Pakistan Oil & Gas B.V

Pakistan Oilfields Ltd.

Pakistan Petroleum Ltd.

Pakistan State Oil Company Limited

Shell Gas LPG Pakistan Limited

Chevron Oil Pakistan Ltd.

SHV Energy Pakistan (Pvt) Ltd.

Mari Gas Company (Pvt) Ltd

Orient Petroleum Inc

PETRONAS Carigali (Pakistan) Ltd.

PKP Premier-KUFFPEC Pakistan B.V

Rally Energy Pakistan Ltd.

Water & Power Development Authority

Sui Northern Gas Pipelines Limited

Sui Southern Gas Company Limited