List of Oil and Gas Companies in India: B2B Directory

India's list of oil and gas companies spans public sector giants, private conglomerates and specialist upstream explorers. Projects India currently tracks 1,285 upcoming petroleum oil and gas projects across the country, of which 561 are verified, carrying a combined recorded cost of approximately Rs 6.99 lakh crore. The promoters behind these projects range from ONGC and Indian Oil Corporation to Reliance Industries, Vedanta and a growing cohort of compressed biogas entrepreneurs.

Most Active Oil and Gas Companies in India by Project Count

The table below is drawn from our database and lists every promoter with a meaningful project pipeline in the petroleum oil and gas segment. Combined recorded cost figures are shown only where our records contain cost data against those projects.

The promoter landscape spans three distinct tiers. The upstream exploration segment is led by ONGC and Oil India Limited, both of which hold large recorded capex portfolios. The midstream pipeline and city gas distribution segment is shaped by PNGRB-authorised projects, GAIL India, GAIL Gas and Adani Gas. The downstream refining and marketing tier features Indian Oil, HPCL and BPCL. Private players — Vedanta, Reliance Industries, Adani Enterprises and Great Eastern Energy Corporation — add significant upstream and alternate-fuel volume. As the chart below shows, these promoters are spread across a large and active project universe.

Largest Individual Oil and Gas Projects in India

For EPC contractors and major equipment suppliers, individual project size matters as much as aggregate company activity. The table below lists the highest-value upcoming projects that Projects India tracks in the petroleum oil and gas segment, drawn directly from our database as of October 2026.

Several of these projects are already in construction, which means active procurement is underway. Projects at the Under Approvals or Planning stage represent near-term pipeline opportunities for vendors who begin engagement early. Suppliers interested in oil and gas EPC contractor networks will find these project entries useful for identifying who the lead engineering firms are likely to be.

Where Oil and Gas Demand Is Concentrated: States and Project Stages

Maharashtra leads all states in project count, followed by Uttar Pradesh, Gujarat, Madhya Pradesh and Andhra Pradesh. Assam and Rajasthan have significant upstream and refining weight despite lower total counts. The state breakdown reflects both legacy production infrastructure and new pipeline and city gas distribution buildout, as the chart below shows.

Breaking down all projects in our database by pipeline stage reveals that the majority — 550 projects — are Under Approvals, making this the single largest cohort. A further 323 have Construction Started, meaning active site work and ongoing procurement. The Planning stage holds 247 projects, representing the early-identification window that B2B sales teams value most. As the chart below shows, the pipeline has depth across every stage.

Of the 40 projects added to our database in the most recent 90-day window, several are compressed biogas and CBG plant projects spread across Andhra Pradesh, Tamil Nadu, Madhya Pradesh, Uttar Pradesh and Odisha. Indian Oil Corporation also added an LPG Bottling Plant project at Kolasib, Mizoram (Rs 225 crore, Under Approvals) during this period. This pace of new entries — 40 in the latest quarter against 60 in the quarter before — shows that new project announcements in the sector continue at a steady rate, with alternate-fuel projects forming a growing share of additions.

How to Approach Oil and Gas Companies in India

The stage of a project determines who is buying and what they are buying. Understanding this is more useful than a static list of oil and gas companies in India, because the same company plays a different procurement role depending on where each project sits.

Planning and Early / Announced stage

At this stage the promoter is typically finalising project scope, technology selection and land acquisition. The relevant contacts are within the project development, business development or corporate strategy function. Vendors who can provide feasibility inputs, technology assessments or pre-FEED services have an entry point. The 247 projects currently at Planning stage in our database represent this window.

Under Approvals stage

The 550 projects at this stage have defined scope but are awaiting statutory clearances — environmental, regulatory or financial. EPC contractors should be developing relationships with the project team during this period. Equipment vendors with long-lead items (compressors, heat exchangers, control systems) should be engaging now, because once approvals are received, procurement timelines compress. A project's procurement team is often formed before approvals are complete.

Approvals Received and Construction Started

The 74 projects with Approvals Received and 323 with Construction Started are in active procurement. For large EPC packages the lead contractor is often already selected at Construction Started; subcontractor and material supplier opportunities remain open throughout. Civil works, piping, electrical and instrumentation packages are frequently tendered separately. Live government tenders on Projects India surface many of these packages as they are issued.

Hold stage

The 43 projects on Hold should not be written off. Projects re-enter active status when financing is secured, regulatory issues are resolved or commodity prices shift. Monitoring them is worthwhile for suppliers who want advance notice when a project restarts.

For private sector promoters — Vedanta, Reliance, Adani Enterprises, Great Eastern Energy, Nexgen Green Fuels — the procurement chain typically runs through a corporate projects or capital procurement team, sometimes augmented by an appointed project management consultant. For public sector undertakings such as ONGC, IOCL, HPCL and BPCL, procurement follows defined tender processes and empanelment requirements. VendorConnect, our contractor and supplier directory, helps teams establish the right introductions before formal tenders are floated.

What This Means for Suppliers and EPC Contractors

A downloadable PDF list of oil and gas companies in India is a starting point, not a sales tool. By the time a static list is compiled and distributed, project stages have moved, contacts have changed and tenders have been issued. The 1,285 upcoming projects that Projects India tracks — covering upstream exploration, midstream pipelines and city gas networks, and downstream refining and alternate fuels — represent a live opportunity set that changes every week.

For EPC contractors, the most immediate opportunities are the 323 projects already in construction and the 74 with approvals received. Subcontractor packages, civil and structural works, and mechanical erection contracts are typically tendered during this phase. The Rs 34,012 crore ONGC KG Basin project and the Rs 28,026 crore Numaligarh Refinery expansion are both in construction and represent sustained multi-year procurement activity.

For equipment and material suppliers, the Under Approvals cohort (550 projects) is the most valuable prospecting list. Engaging promoters and their EPC partners before tenders are issued allows vendors to get onto approved vendor lists, influence specifications and avoid the compressed timelines of post-award procurement.

For consultants and project management firms, the Planning stage projects — including the Rs 27,200 crore Great Eastern Energy exploration project in West Bengal and the Rs 25,000 crore Adani Enterprises gas project in Chhattisgarh — are where mandates are awarded. Early engagement with promoter project development teams is the entry point.

The alternate-fuel segment — compressed biogas, CBG plants and green diesel — is adding new promoters to the market rapidly. Many of these are first-time project developers unfamiliar with procurement norms, which creates an early-mover advantage for vendors who can provide technical and commercial support alongside supply.

Teams looking to build a systematic pipeline from India's oil and gas project universe can explore the full petroleum oil and gas project database, review the projects intelligence platform for verified project details and decision-maker data, or request a free sample project report to assess data depth before subscribing. Related sector activity — including steel, pharma and industrial projects that share EPC contractor and material supplier pools — is covered in our Upcoming Industrial Projects in Tamil Nadu 2026 and Upcoming Projects in Odisha guides.