)
Bharat Petroleum
Balmer and Lawrie
CPCL
Engineers India Ltd
GAIL (India) Ltd.
Hindustan Petroleum
Indraprastha Gas Limited
Indian Oil Corporation Limited
Maharashtra Natural Gas Limited
Mangalore Refinery and Petrochemicals Ltd.
Numaligarh Refinery Limited
Brahmaputra Cracker and Polymer Limited
ONGC
Oil India Ltd
Petronet LNG Ltd
