Oil and Natural Gas Corporation Limited

Overview

Oil and Natural Gas Corporation Limited, usually called ONGC, explores for, develops and produces crude oil and natural gas. Its parent-company identity is primarily upstream: the work begins with understanding rocks and reservoirs and continues through drilling, field development and production. The wider group also participates in overseas hydrocarbons, refining, fuel marketing, petrochemicals and renewable energy through separate entities. [1][12]

The company grew from a government directorate and then the Oil and Natural Gas Commission. The modern limited company was incorporated in 1993. A 1956 origin date describes the commission-era institution, while 1993 identifies the legal corporation. Both belong in its history, but they should not be presented as the same incorporation event. [2][3]

ONGC and Oil India Limited are separate companies. Likewise, ONGC’s own domestic production, overseas production through ONGC Videsh and refined-product sales by downstream subsidiaries are different operating boundaries. A group profile is most useful when it explains those relationships before presenting large combined figures. [13][12]

Company identity & key facts

History & milestones

1. 1956The government raises the Oil and Natural Gas Directorate to commission status in August.
2. 1959The commission becomes a statutory body under an Act of Parliament.
3. 1993ONGC Limited is incorporated to receive the undertaking of the statutory commission.
4. 1999Cross-holdings with IndianOil and GAIL form part of a period of strategic alliances.
5. 2002–2003The acquisition of MRPL extends the group into downstream refining.
6. 2024ONGC Green Limited is incorporated as a dedicated green-energy subsidiary.
7. 2026The company reports a Mahanadi deepwater gas strike, subject to appraisal and commercial evaluation.

These milestones describe selected changes in the business. The original records provide the fuller chronology. [3][2][14][15]

How the business makes money

Upstream operations seek commercially recoverable oil and gas, develop wells and facilities, and sell the resulting hydrocarbons under applicable arrangements. Exploration is inherently uncertain: surveys and drilling can create information without producing a commercial discovery. Development then requires additional investment before a field produces saleable output. [10][11]

Analytical context: revenue depends on production sold and realised prices, while profit also reflects operating costs, levies, exploration expenditure, depletion, depreciation and financing. Reserves are an estimate of future recoverable volumes under defined assumptions; they are not the same as current output, sales or cash. Price movements can materially change revenue even when production changes little. [8]

The group’s downstream businesses have a different economic pattern. A refinery buys crude and sells a mix of products, while a marketer manages distribution and customer channels. These activities can respond differently to the same oil-price change. Consolidated earnings therefore cannot be explained solely by the parent’s upstream realisation. [12][6]

Major businesses & technical capabilities

Exploration and appraisal

Exploration combines geological interpretation, seismic surveys, processing and drilling. The official capability description identifies land and marine surveys and a network of basin work centres supported by research institutes. An exploratory well tests a geological proposition; appraisal then helps determine the size, characteristics and commercial prospects of a discovery. [10]

Development and production

Field development brings together wells, processing facilities, transport connections and operating systems. Production management aims to recover hydrocarbons while maintaining safe and reliable facilities. Mature fields may require interventions and investment to sustain output as reservoir conditions change. Offshore development adds marine logistics, weather exposure and specialised engineering to the operating task. [11]

Overseas, downstream and green energy

ONGC Videsh is the wholly owned overseas arm focused on exploration, development and production outside India. HPCL and MRPL supply downstream exposure, while ONGC Green provides a dedicated structure for renewable and related opportunities. These entities have their own assets and reporting, so their activity should be identified before interpreting a group total. [13][12][14]

Products, corporate names & familiar identities

Subsidiaries & reporting boundaries

The official subsidiary-account page directs readers to separate financial statements for ONGC Videsh, MRPL and HPCL. Consolidation reflects control and accounting rules, rather than simply adding every company mentioned in a corporate directory. Listed subsidiaries retain shareholders other than the parent and their own investor obligations. [12]

ONGC Green was incorporated on 27 February 2024 and began business operations in April that year. Its official page describes the 50:50 ONGC NTPC Green joint venture with NGEL, incorporated in November 2024, as well as acquisitions and greenfield development. The page combines operating and under-construction renewable capacity in some totals; those figures should not be relabelled fully commissioned generation. [14]

Analytical context: a participating interest in an oil or gas project describes contractual ownership of that project, and may differ from operatorship. A company can have economic exposure without operating every facility. Overseas asset counts should consequently be read alongside ownership, operator status and project stage. [13]

Leadership & governance

The reviewed board page identifies Arun Kumar Singh as Chairman and CEO. It describes functional director responsibilities covering technology and field services, finance, production, exploration, human resources, and strategy and corporate affairs. This division reflects a business that must connect geological opportunity, engineering execution and commercial discipline. [5]

Analytical context: governance questions include investment approval, procurement, related-party transactions, reserve and asset estimates, and the treatment of contingent liabilities. Annual reports and exchange filings provide the relevant detail; a favourable production or profit headline cannot establish that every project or control issue has been resolved. [6]

Corporate base, basins & technical centres

A basin is a geological region, not a company incorporation address. ONGC can organise work from a city while operating wells and offshore facilities elsewhere. Dehradun remains important in its institutional and technical history, while the current registered-office address is in New Delhi. [4][18]

KDMIPE traces its origins to a research and training institute established in 1962. Its role illustrates the technical infrastructure behind field operations: geoscience support and research contribute to exploration decisions but are not themselves oil-production volumes. [18]

Financial context & dated performance

The first two figures convert the NSE filing’s ₹ lakh amounts to ₹ crore. The company release provides rounded profit figures. This is a standalone parent-company table, not the consolidated result of the downstream and overseas group. The official results archive reviewed for this profile lists Q1 as the available FY2026–27 quarter; a September result is not inferred or invented. [8][7][9]

Analytical context: an upstream company’s current profit reflects commodity prices as well as output and costs. Exploration investment, asset impairment, depletion and future abandonment obligations require the accounting notes. A profitable quarter does not mean that every discovery has been commercially developed or that all capital expenditure has already generated cash. [6]

Public ownership & investor information

ONGC is a Government of India-controlled listed company under the Ministry of Petroleum & Natural Gas. Its parent equity identifiers are ONGC on NSE and 500312 on BSE. A precise ownership percentage should come from a shareholding return for a stated date; the historical RTI page contains older percentages and should not be treated as a current ownership table. [2][8]

The group’s separately listed downstream companies also have their own securities and reporting obligations. An ONGC share, an HPCL share and an MRPL share are interests in different legal issuers. Parent-company consolidated profit and profit attributable to parent owners can also differ where minority shareholders participate in subsidiary earnings. [12][6]

Strategy & recent developments

A central upstream objective is to replace and develop resources while supporting production from the existing portfolio. The August 2026 results release describes a substantial western-offshore investment programme and deepwater exploration under Samudra Manthan. These are investment and exploration developments, not a guarantee of a particular future output or return. [7]

On 21 September 2026 ONGC announced a gas strike made on 18 September at a deepwater well in the Mahanadi offshore basin. The announcement explicitly makes possible monetisation subject to further appraisal and commercial evaluation. The correct description is therefore a discovery-stage development, not an already commissioned gas-producing project with assured sales. [15]

Green-energy expansion follows a different path through OGL and partnerships. Acquiring an operating portfolio can add near-term assets, while greenfield projects require development and construction. A combined figure that includes both operating and under-construction projects needs that qualification to remain visible. [14]

People, technical skills & communities

ONGC’s work requires geoscientists, drilling and reservoir specialists, production engineers, marine and construction expertise, finance, procurement, environmental professionals and supporting roles. Its research and training institutions connect technical learning with field requirements. Recruitment notices and official career pages identify the actual employing company and route of entry. [19][18]

The health-and-safety framework recognises that risk management is an everyday operating responsibility. Well control, high-pressure systems, offshore transport and process equipment require competence and procedures suited to the work. Employee and contractor coverage should be distinguished when interpreting training or incident statistics. [17]

CSR programmes provide one channel for relationships with communities, but they are separate from the obligation to manage operational effects. The official CSR application process describes proposal documentation and submission routes. A programme’s approved funding, expenditure, participation and measured outcomes are different indicators of its result. [20]

Emissions, safety & energy transition

ONGC’s decarbonisation roadmap sets a target of net-zero operational Scope 1 and Scope 2 emissions by 2038. The boundary is crucial: this is an operational-emissions target, not a statement that all emissions from the later use of oil and gas products are already neutralised. The roadmap records approval for release of the strategy in June 2024. [16]

The safety and environment material covers methane identification and reduction, sustainable water management and broader operating controls. Methane can escape from production infrastructure, so detection and repair address a different emissions source from purchased electricity. Water withdrawal, recycling and discharge also need local operating context rather than a single company-wide slogan. [17]

Overseas operations add host-country environments and partner arrangements. ONGC Videsh describes an integrated HSE and enterprise-risk approach. A group sustainability summary should preserve the distinction between parent operations, subsidiaries and non-operated interests, together with the reporting year and assurance coverage. [21]

Risks & matters to monitor

Analytical context: exploration may fail to establish a commercial resource, and a discovery can require further appraisal before development. Producing reservoirs can decline, while offshore construction and maintenance face weather, logistics and specialist-equipment dependencies. The technical success of a well is therefore only one step in a longer commercial chain. [10][11]

Commodity prices, exchange rates, government levies and gas-pricing arrangements affect financial outcomes. Asset values and future abandonment obligations depend on estimates. Readers should examine reserve definitions, impairment assumptions and contingent liabilities in the annual statements rather than infer long-term value from a single quarter’s profit. [6]

Overseas participation brings political, security, partner and payment risks in addition to geology and engineering. Downstream subsidiaries have their own refining, inventory and marketing exposures. Renewable investments add further execution and counterparty questions. A consolidated group risk assessment must consider these different businesses rather than assume that diversification eliminates risk. [13][21][14]

Reports & research documents

Use financial statements for accounting figures, annual reports for the wider business and governance picture, and dated announcements for subsequent developments. Figures with different reporting boundaries or periods should be compared only after checking their definitions.

Frequently asked questions

A plain-language business glossary

Upstream

Exploration, development and production of oil and gas.

Downstream

Refining, distribution and marketing of petroleum products and related activities.

Seismic survey

A method of acquiring subsurface information to support geological interpretation.

Appraisal

Further work to establish the characteristics and commercial prospects of a discovery.

Reserve

An estimate of recoverable hydrocarbons under the stated classification and assumptions.

Participating interest

A contractual economic share in an oil or gas project; it does not necessarily imply operatorship.

Depletion

Accounting allocation associated with extraction of a finite resource.

Scope 1 / Scope 2

Direct operational emissions and emissions from purchased energy under the reporting definitions.

Sources, review date & editorial scope

Reviewed: 3 November 2026. This profile combines original explanations with the linked official company publications and regulatory filings. Financial tables retain their currency, period and reporting basis. Company targets, forecasts and product claims are attributed to their issuer.

Products, entities, locations and developments are selected for orientation. The linked disclosures contain fuller subsidiary registers, accounting notes, governance reports and risk information. A later filing may change a fact recorded here. Historical announcements are dated so they are not mistaken for current appointments or completed transactions.

1. ONGC corporate profile ↗Oil and Natural Gas Corporation Limited · reviewed 3 Nov 2026
2. Official RTI particulars: incorporation on 23 June 1993 ↗Oil and Natural Gas Corporation Limited · reviewed 3 Nov 2026
3. History of the directorate, commission and corporation ↗Oil and Natural Gas Corporation Limited · reviewed 3 Nov 2026
4. Offices and registered corporate identity ↗Oil and Natural Gas Corporation Limited · reviewed 3 Nov 2026
5. Current board of directors ↗Oil and Natural Gas Corporation Limited · reviewed 3 Nov 2026
6. Annual reports, including FY2025–26 ↗Oil and Natural Gas Corporation Limited · reviewed 3 Nov 2026
7. Q1 FY2026–27 financial and operational results, 4 August 2026 ↗Oil and Natural Gas Corporation Limited · reviewed 3 Nov 2026
8. NSE standalone integrated filing, 4 August 2026 ↗Oil and Natural Gas Corporation Limited · reviewed 3 Nov 2026
9. Official financial-results archive ↗Oil and Natural Gas Corporation Limited · reviewed 3 Nov 2026
10. Exploration capabilities and basin work centres ↗Oil and Natural Gas Corporation Limited · reviewed 3 Nov 2026
11. Production and operating expertise ↗Oil and Natural Gas Corporation Limited · reviewed 3 Nov 2026
12. Audited subsidiary accounts and reporting links ↗Oil and Natural Gas Corporation Limited · reviewed 3 Nov 2026
13. ONGC Videsh: overseas exploration, development and production ↗Oil and Natural Gas Corporation Limited · reviewed 3 Nov 2026
14. ONGC Green Limited: formation, acquisitions and plans ↗Oil and Natural Gas Corporation Limited · reviewed 3 Nov 2026
15. Mahanadi deepwater gas strike, 21 September 2026 ↗Oil and Natural Gas Corporation Limited · reviewed 3 Nov 2026
16. Decarbonization roadmap and Scope 1–2 target ↗Oil and Natural Gas Corporation Limited · reviewed 3 Nov 2026
17. Health, safety, methane and water management ↗Oil and Natural Gas Corporation Limited · reviewed 3 Nov 2026
18. KDMIPE: geoscience research and technical support ↗Oil and Natural Gas Corporation Limited · reviewed 3 Nov 2026
19. Official career and recruitment portal ↗Oil and Natural Gas Corporation Limited · reviewed 3 Nov 2026
20. ONGC CSR application process and programme documents ↗Oil and Natural Gas Corporation Limited · reviewed 3 Nov 2026
21. ONGC Videsh: HSE and enterprise-risk framework ↗Oil and Natural Gas Corporation Limited · reviewed 3 Nov 2026