•Bharat Petroleum Corporation Limited
•Hindustan Petroleum Corporation Limited
•Indian Oil Corporation Limited
•Mangalore Refinery and Petrochemicals Limited
•Reliance Industries Limited
•Brahmaputra Cracker and Polymer Limited
•Haldia Petrochemicals Limited
•HPCL-Mittal Energy Limited
•Nayara Energy Limited
•ONGC Petro additions Limited