S&P BSE ENERGY Top Companies List by Market Cap as on Jan 1st, 2020

RELIANCE INDUSTRIES is a Multi-Sector company with spread of business in Retail, Telecom, PetroChemicals, Energy, Textiles, Natural Resources with head quarters is in Mumbai of India. Reliance Industries employee count is 195,618 as on 2020. Now Reliance Industries can also be considered as a Technology company, as it created wonders in Telecom sector of India and providing high speed mobile internet at cheap cost.

As on April 2020:

Oil and Gas company with headquarters in Mumbai of India. ONGC own about 51% of shares of HPCL. HPCL today owns and operates two coastal refineries at Mumbai and Visakhapatnam with designed capacity of 7.5 MMTPA and 8.3 MMTPA respectively. Add to this a joint venture refinery at Mangalore, two cross-country pipelines and an extensive network of terminals, depots, bottling plants and aviation servicing facilities.

Petronet LNG Limited, one of the fastest growing world-class companies in the Indian energy sector, has set up the country's first LNG receiving and regasification terminal at Dahej, Gujarat, and another terminal at Kochi, Kerala. While the Dahej terminal has a nominal capacity of 15 MMTPA, which is being expanded to 17.5 MMTPA, the Kochi terminal has a capacity of 5 MMTPA. The company is also exploring suitable opportunities within and outside India to expand its business presence. Headquarters in New Delhi, India.

Gujarat Gas is India's largest City Gas Distribution Player company with its presence spread across 23 Districts in the State of Gujarat, Union Territory of Dadra and Nagar Haveli and Thane Geographical Area which includes Palghar District of Maharashtra. The company has more than 25,000 kms. of gas pipeline network and more than 480 CNG stations and distributes close to 11.50 mmscmd (as on 31/12/2020) of natural gas to over 15,00,000 households and to more than 3900 industrial customers. The headquarters is in India.

Oil and gas company with headquarters in Assam, India. PSU company.