Top Oil and Gas Companies in India
Oil and Natural Gas Corporation (ONGC)
Indian Oil Corporation Ltd. (IOCL)
Reliance Industries Ltd.
Bharat Petroleum Corporation Ltd.
GAIL (India) Ltd.
*Disclaimer: Top companies sorted in no particular order

India Oil and Gas - Competitive Concentration

List of Oil and Gas Companies in India
Oil and Natural Gas Corporation (ONGC)
Oil India Limited
Reliance Industries Ltd.
Indian Oil Corporation Ltd.
Bharat Petroleum Corporation Ltd.
Hindustan Petroleum Corporation Ltd.
GAIL (India) Ltd.
Cairn Oil & Gas (Vedanta)
Petronet LNG Ltd.
Adani Total Gas Ltd.
Nayara Energy Ltd.
ONGC Videsh Ltd.
Oil and Natural Gas Services (OVL)
Larsen & Toubro – Hydrocarbon
Schlumberger India
Halliburton India
Baker Hughes India
Jindal Drilling & Industries Ltd.
Essar Oil & Gas Exploration & Production
HPCL-Mittal Energy Ltd.
Gujarat State Petroleum Corporation (GSPC)
Numaligarh Refinery Ltd.
Chennai Petroleum Corporation Ltd.
Mangalore Refinery & Petrochemicals Ltd.



