Top 50 Oil & Gas Companies in India
Top 50 Oil & Gas Companies in India

Top 50 Oil & Gas Companies in India

India’s oil and gas sector plays a critical role in powering the nation’s economy, supporting industries, transportation, and energy security. With a mix of government-owned giants and fast-growing private players, the industry spans the entire value chain—from exploration and production to refining, distribution, and energy services.

At the forefront are major companies like Reliance Industries Limited, Oil and Natural Gas Corporation, and Indian Oil Corporation, which dominate production, refining, and fuel retailing across the country. These industry leaders are supported by other key players such as Bharat Petroleum Corporation Limited and Hindustan Petroleum Corporation Limited, forming the backbone of India’s energy infrastructure.

In the natural gas and LNG segment, companies like GAIL India Limited and Petronet LNG Limited are driving the transition toward cleaner energy. Meanwhile, city gas distributors such as Indraprastha Gas Limited and Gujarat Gas Limited are expanding access to piped natural gas across urban areas.

India’s upstream and exploration activities are further strengthened by companies like Oil India Limited and private players such as Cairn Oil & Gas. Additionally, global service providers including Schlumberger and Halliburton contribute advanced technology and expertise to complex drilling and production operations.

The Indian oil and gas landscape is also evolving with increased private participation from companies like Adani Total Gas Limited and Nayara Energy, reflecting a shift toward diversification and global competitiveness.

🔵 Tier 1 – Largest & Most Influential

1. Reliance Industries Limited

India’s largest private sector company, Reliance operates one of the world’s biggest refining complexes at Jamnagar and has a strong presence in petrochemicals, oil refining, and fuel retail.


2. Oil and Natural Gas Corporation (ONGC)

India’s leading upstream company responsible for the majority of the country’s crude oil and natural gas production, with operations both onshore and offshore.


3. Indian Oil Corporation (IOCL)

The largest government-owned oil refining and marketing company in India, operating an extensive fuel distribution network across the country.

     


4. Bharat Petroleum Corporation Limited (BPCL)

A major public sector oil company engaged in refining, marketing, and distribution of petroleum products with a strong nationwide retail presence.

   

5. Hindustan Petroleum Corporation Limited (HPCL)

A key downstream player in India focused on refining crude oil and distributing petroleum products through its wide network of fuel stations.


                    


6. GAIL India Limited

India’s largest natural gas transmission company, playing a crucial role in gas pipeline infrastructure and LNG distribution.



7. Oil India Limited (OIL)

A government-owned company engaged in exploration and production of crude oil and natural gas, primarily in India’s northeastern regions.

   

8. Adani Total Gas Limited

A joint venture between Adani Group and TotalEnergies, focused on city gas distribution and expanding clean energy access across India.

      

9. Cairn Oil & Gas

One of India’s largest private oil and gas exploration and production companies, contributing significantly to domestic crude oil output.




10. Nayara Energy

A major private downstream company operating a large refinery in Gujarat and a rapidly growing fuel retail network across India.


                           


🟢 Tier 2 – Key Midstream, LNG & Refining Players

1. Petronet LNG Limited

India’s leading LNG importing company, operating major terminals like Dahej and Kochi to supply liquefied natural gas across the country.

2. Indraprastha Gas Limited (IGL)

A प्रमुख city gas distribution company supplying CNG for vehicles and PNG for homes and industries, mainly in Delhi NCR.

3. Gujarat Gas Limited

One of India’s largest city gas distributors, providing natural gas to industrial, commercial, and residential consumers across Gujarat and other regions.

4. Mahanagar Gas Limited (MGL)

A key player in Mumbai’s gas distribution network, delivering CNG and piped natural gas to households, vehicles, and industries.

5. Chennai Petroleum Corporation Limited (CPCL)

A subsidiary of Indian Oil, operating refineries in Tamil Nadu and contributing to fuel production in South India.

6. Mangalore Refinery and Petrochemicals Limited (MRPL)

A subsidiary of ONGC, running a major refinery in Karnataka and producing a wide range of petroleum and petrochemical products.

7. Numaligarh Refinery Limited (NRL)

A government-owned refinery in Assam focused on processing crude oil from the Northeast and supporting regional energy development.

8. HPCL-Mittal Energy Limited (HMEL)

A joint venture between HPCL and Mittal Energy, operating the Guru Gobind Singh Refinery in Punjab.

9. ONGC Videsh Limited (OVL)

The international arm of ONGC, engaged in oil and gas exploration and production projects across multiple countries.

10. Gujarat State Petroleum Corporation (GSPC)

A Gujarat government-owned company involved in oil and gas exploration, production, and energy infrastructure development.


🟡 Tier 3 – Exploration, Drilling & Services

  • 1. Larsen & Toubro Hydrocarbon Engineering

    A division of L&T specializing in EPC (engineering, procurement, and construction) services for offshore and onshore oil & gas projects.

    2. Schlumberger (Schlumberger India)

    A global leader in oilfield services, providing advanced technology solutions for drilling, reservoir evaluation, and production optimization.

    3. Halliburton (Halliburton India)

    One of the world’s largest oilfield service companies, offering services in drilling, completion, and reservoir management.

    4. Baker Hughes (Baker Hughes India)

    A global energy technology company delivering solutions in drilling, production, and digital oilfield services.

    5. Jindal Drilling & Industries Limited

    An Indian company providing offshore drilling services, operating rigs for oil and gas exploration activities.

    6. Aban Offshore Limited

    One of India’s largest offshore drilling contractors, offering drilling services with a fleet of rigs for global operations.

    7. Great Eastern Shipping Company

    India’s largest private shipping company, involved in transporting crude oil, petroleum products, and dry bulk cargo.

    8. Deep Industries Limited

    Provides integrated services including gas compression, drilling, and production support for oil and gas companies.

    9. Asian Energy Services Limited

    Offers seismic surveys, drilling services, and integrated solutions for upstream oil and gas operations.

    10. Oilmax Energy Private Limited

    An Indian exploration and production company focused on developing oil and gas fields both domestically and internationally.

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    🔴 Tier 4 – Private E&P, Gas & Emerging Players

  • 1. Essar Oil and Gas Exploration and Production Limited

    Focused on coal bed methane (CBM) exploration and production, supplying natural gas as a cleaner fuel for industrial and commercial use.

    2. Selan Exploration Technology Limited

    An Indian upstream company engaged in onshore oil exploration and production, primarily operating small oil fields.

    3. Hindustan Oil Exploration Company Limited (HOEC)

    A private oil and gas company involved in exploration, field development, and production of hydrocarbons in India.

    4. Reliance BP Mobility Limited

    A joint venture between Reliance and BP, operating a fast-growing network of fuel stations and mobility solutions across India.

    5. Adani Welspun Exploration Limited

    An exploration-focused joint venture working on oil and gas blocks, combining infrastructure and upstream expertise.

    6. Confidence Petroleum India Limited

    Engaged in LPG bottling, storage, and distribution, serving domestic, commercial, and industrial customers.

    7. Aegis Logistics Limited

    A key player in LPG import, storage terminals, and liquid logistics for petroleum and chemical products.

    8. Petrofac (Petrofac India)

    Provides engineering, procurement, and construction (EPC) services along with operations support for oil and gas projects.

    9. Technip Energies (Technip Energies India)

    Specializes in LNG, hydrogen, and sustainable energy solutions, supporting both traditional and energy transition projects.

    10. Fluor Corporation (Fluor Daniel India)

    A global EPC company delivering large-scale engineering, procurement, and construction services for oil, gas, and infrastructure projects.

  • 🟣 Tier 5 – Supporting & Niche Oil & Gas Companies

  • 1. Engineers India Limited (EIL)

    A leading public sector engineering consultancy and EPC company providing design, project management, and execution services for oil & gas and petrochemical projects.

    2. Bridge and Roof Company India Limited

    A government-owned engineering and construction company involved in infrastructure, industrial, and oil & gas project execution.

    3. PetroNet India Limited

    Focused on developing energy and communication infrastructure, including pipelines and fiber-optic networks along petroleum routes.

    4. Indian Strategic Petroleum Reserves Limited (ISPRL)

    Responsible for maintaining India’s strategic crude oil reserves to ensure energy security during supply disruptions.

    5. Assam Petrochemicals Limited

    Produces petrochemicals like methanol and formalin, supporting downstream industries in Northeast India.

    6. Brahmaputra Cracker and Polymer Limited (BCPL)

    Operates a major petrochemical complex in Assam, producing polymers and chemicals for industrial applications.

    7. Ratnagiri Refinery and Petrochemicals Limited (RRPCL)

    A large-scale refinery and petrochemical project aimed at boosting India’s refining capacity and exports.

    8. H-Energy Private Limited

    Develops LNG terminals, pipelines, and gas distribution networks to expand natural gas usage in India.

    9. AG&P LNG India

    Focuses on LNG import, distribution, and city gas infrastructure, promoting cleaner energy solutions.

    10. Shell India Markets Private Limited

    A subsidiary of Shell, engaged in fuel retail, lubricants, and energy solutions in the Indian market.

  • Conclusion

    With rising energy demand and a growing focus on natural gas and cleaner fuels, India’s oil and gas sector is undergoing significant transformation. The collaboration between public sector enterprises and private companies is creating new opportunities in exploration, LNG infrastructure, and energy innovation. As the country moves toward a more sustainable energy future, these top companies will continue to shape the direction of the industry.

  • India’s oil & gas sector is dominated by PSUs like ONGC & IOCL, but private players like Reliance are globally competitive.
  • The industry spans:
    • Upstream: ONGC, Oil India
    • Midstream: GAIL, Petronet LNG
    • Downstream: IOCL, BPCL, HPCL
  • Growing areas:
    • LNG & Gas Distribution
    • Offshore exploration
    • Energy transition (hydrogen, renewables)

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