India occupies two very different positions in the global oil industry. It is a major consumer and refiner of petroleum, but a relatively small crude oil producer. Domestic fields supply only a limited share of national requirements, leaving the country dependent on seaborne imports for about 88% of its crude oil needs.
This dependence has not prevented India from developing a large and internationally competitive downstream industry. Its refineries process imported crude into petrol, diesel, aviation fuel, petrochemicals, liquefied petroleum gas, and other products for both domestic use and export. The result is an oil sector defined less by resource wealth than by scale, logistics, purchasing power, and refining capability.
Domestic Oil Production Cannot Match India’s Expanding Market
India produces crude oil from offshore fields in the Arabian Sea and from onshore basins in Rajasthan, Assam, Gujarat, Andhra Pradesh, and Tamil Nadu. The western offshore region, including the Mumbai High area, has historically formed the centre of national production. Assam is the birthplace of the Indian petroleum industry, while Rajasthan became a major producing region following the development of fields in the Barmer Basin.
The principal domestic producers are state-controlled Oil and Natural Gas Corporation and Oil India. Cairn Oil & Gas, part of Vedanta, is the largest private producer and operates important assets in Rajasthan, Gujarat, Andhra Pradesh, and Assam.
India’s production challenge is closely connected to the age of its leading fields. Mumbai High, the Rajasthan Mangala-Bhagyam-Aishwariya complex, and several northeastern assets are mature developments. Operators must use infill drilling, water injection, polymer flooding, well interventions, and enhanced oil recovery to slow natural decline.
Cairn’s operated oil and gas production fell during the 2024–25 financial year, largely because of reservoir decline in its main Rajasthan fields. Additional wells and intervention work partly offset the reduction, but the performance shows how difficult it is to maintain output from established assets.
New discoveries could improve the position, particularly in deepwater and frontier areas. However, even a successful exploration programme would be unlikely to eliminate India’s import dependence. National oil consumption is measured in millions of barrels per day, while domestic crude production covers only about one-eighth of the market.
Refineries Turn Imported Crude into a Strategic Industry
Refining is the strongest part of India’s petroleum system. The country had approximately 258.1 million tonnes per year of installed refining capacity in April 2025, distributed across public-sector, joint-venture, and private facilities.
The largest concentration is in Gujarat. Reliance Industries operates two major refineries at Jamnagar with combined capacity of more than 68 million tonnes per year. Nearby, Nayara Energy operates the Vadinar refinery. Their access to deepwater ports allows large crude tankers to unload imported feedstock and refined products to be shipped to international customers.
Indian Oil Corporation maintains the largest public-sector refining network, with plants at locations including Panipat, Paradip, Koyali, Mathura, Barauni, Haldia, Bongaigaon, Guwahati, and Digboi. Bharat Petroleum operates major facilities in Mumbai, Kochi, and Bina, while Hindustan Petroleum has refineries in Mumbai and Visakhapatnam. Other important sites include Mangalore, Chennai, and Numaligarh.
This network gives India more refining capacity than it needs solely for domestic consumption. Although the country is a large crude importer, it is also an important exporter of petroleum products. Indian refineries supplied customers in more than 50 countries and generated petroleum-product exports worth more than US$45 billion during the 2024–25 financial year.
Refinery investment is expected to continue as domestic demand rises. Government plans have indicated an increase toward approximately 310 million tonnes per year by 2030. Expansion projects are also adding petrochemical capacity, improving fuel quality, and increasing the ability of plants to process different grades of crude.
India’s refining role therefore changes the meaning of its import dependence. Imported oil is not used only to cover a domestic shortage. It is also the raw material for a major processing and export industry.
Crude Supply Diversification Has Become an Energy-Security Priority
India’s oil system depends on long maritime supply chains. Crude arrives from the Middle East, Russia, Africa, the Americas, and other producing regions. The composition of the import basket changes according to price, sanctions, freight rates, refinery requirements, and diplomatic conditions.
Indian refiners have generally pursued a flexible purchasing strategy. Some facilities can process a wide range of heavy, light, sweet, and sour crude grades, allowing buyers to respond to discounted supplies or disruptions in established markets. Private refiners may have different commercial priorities from public oil companies, but both depend on secure access to international cargoes.
The Middle East remains geographically important because of its proximity and established tanker routes. However, dependence on shipments passing through the Strait of Hormuz creates exposure to regional conflict and maritime disruption. India has responded by widening its supplier base, with crude purchased from around 40 countries in recent years.
Strategic petroleum storage provides an additional layer of protection. Underground facilities at Visakhapatnam, Mangalore, and Padur have a combined capacity of 5.33 million tonnes. Further storage has been proposed at Padur and Chandikhol. These reserves can support emergency supply, although their capacity remains limited when compared with the size of Indian consumption.
Ports, coastal pipelines, crude terminals, and tanker availability are therefore central to India’s oil security. Import dependence is not only a question of finding sellers. It requires ships, insurance, financing, suitable port capacity, refinery access, and sufficient storage throughout the supply chain.
Transport and Industry Keep Oil Demand Growing
India consumes approximately 5.5 to 5.6 million barrels of oil per day, with further growth expected as transport, manufacturing, construction, aviation, and household consumption expand. Diesel is particularly important because it supports freight transport, agricultural machinery, construction equipment, backup generation, and industrial activity.
Petrol demand is rising with private vehicle ownership and urban mobility. Aviation fuel consumption is supported by the expansion of domestic air travel, while liquefied petroleum gas remains important for household cooking. Naphtha, petroleum coke, bitumen, lubricants, and petrochemical feedstocks connect oil demand to industries beyond road transport.
Electric vehicles may eventually reduce petrol and diesel growth, but India’s vehicle fleet, freight requirements, and industrial development mean that petroleum will remain important for years. The government is also using ethanol blending, compressed biogas, electric mobility, and other substitution programmes to moderate import growth.
The national ethanol programme has moved toward a 20% blending target for petrol. This does not remove the need for crude oil, but it can displace part of the petrol pool while supporting domestic agricultural feedstock and biofuel production.
Exploration Reform Is Aimed at Slowing Import Growth
India has opened more acreage to exploration through the Hydrocarbon Exploration and Licensing Policy and the Open Acreage Licensing Policy. Nine OALP rounds awarded 172 exploration blocks covering more than 378,000 square kilometres, while a larger tenth round offered additional onshore, shallow-water, deepwater, and ultra-deepwater areas.
The Andaman offshore region has attracted attention because it remains relatively underexplored. Seismic surveys and licensing activity are intended to identify whether its geological potential can support commercial discoveries. Deepwater areas along India’s eastern coast are another long-term focus.
Regulatory reforms introduced in 2025 were designed to provide greater certainty, simplify licensing, and allow a single framework to cover different hydrocarbon resources. The commercial test will be whether these changes lead to more drilling and faster development rather than acreage acquisition alone.
Exploration can reduce the rate at which import dependence grows, but India’s market is expanding too rapidly for domestic production to become the sole answer. The more realistic strategy combines new exploration with diversified imports, strategic storage, refinery expansion, biofuel use, and stronger maritime infrastructure.
India’s Oil Future Will Be Shaped Downstream
India is unlikely to become self-sufficient in crude oil under current production and demand trends. Its domestic fields remain valuable, particularly because every additional barrel reduces exposure to imports, but upstream output is not keeping pace with consumption.
The country’s greater advantage lies in refining, fuel distribution, petrochemicals, and its ability to purchase crude from multiple markets. India can remain import-dependent while strengthening its position as a major petroleum processor and exporter.
Future performance will depend on maintaining access to affordable crude, protecting maritime supply routes, completing refinery projects, and managing growing fuel demand. The central issue for oil in India is therefore not whether imports can be eliminated, but whether one of the world’s largest petroleum markets can make those imports secure, commercially productive, and economically manageable.
