S&P BSE OIL and GAS Top Companies List by Market Cap as of August 2026

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. 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.

Reliance Jio and Reliance Retail are subsidiary companies of Reliance Industries.

As on April-2023, Reliance Jio had 433.27 million subscribers.

ONGC is Oil and Gas Exploration and Producing PSU Sector Company with headquarters is in Dehradun of India. As on March-2023, ONGC has 25,993 Employees.

Indian Oil Corporation is State-Owned Oil and Gas company with headquarters is in New Delhi of India. Exploring, Refining, Pipe Line Transportation and Marketing of Oil and Gas related products is core business of IOC. It had more than 10 oil refineries. Markets petrol and diesel through its petrol outlets which are present across India. Headquarters is in India.

Servo engine oil brand belongs to IOCL.

It is pursuing diverse business interests with the setting up of over 15 joint ventures with reputed business partners from India.

BHARAT PETROLEUM CORPORATION is Oil and gas sector company with headquarters is in Mumbai, India.

GAIL (INDIA) is Government owned natural gas processing and distribution company with headquarters is in New Delhi of India.

HPCL is Oil and Gas company with headquarters is 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.

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

ADANI TOTAL GAS LIMITED is Gas utilities company with headquarters is in India.

Adani Total Gas is developing City Gas Distribution (CGD) Networks to supply the Piped Natural Gas (PNG) to the Industrial, Commercial, Domestic (residential) and Compressed Natural Gas (CNG) to the transport sector.

Petronet LNG Limited is 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 is in New Delhi, India.

INDRAPRASTHA GAS is natural gas distribution company with headquarters is in New Delhi, India.