India strategic petroleum reserve oil storage

Economy May 18, 2026 8 min read

India's Strategic Petroleum Reserve – How India Secures Oil Supply

India imports the bulk of its crude oil, which makes it vulnerable to global supply shocks — wars, sanctions, shipping-route blockages or sudden price spikes. To cushion such shocks, India maintains a Strategic Petroleum Reserve (SPR) — an emergency stockpile of crude oil. This evergreen explainer covers what the SPR is, where it is, why it matters, and how it protects ordinary Indians.

What Is a Strategic Petroleum Reserve?

An SPR is a large emergency stockpile of crude oil stored by a country to be used during supply disruptions. Think of it as a national "fuel savings account" — drawn upon only in emergencies to keep refineries running and prices stable when imports are threatened.

Why India Needs an SPR

India imports over 85% of its crude — high import dependence
A war, sanction or chokepoint blockage could abruptly cut supply
Reserves buy time to find alternate suppliers without panic
It stabilises domestic fuel prices and protects the economy during shocks

Where Are India's SPR Facilities?

India's strategic crude reserves are stored in underground rock caverns built by Indian Strategic Petroleum Reserves Limited (ISPRL) at locations on the eastern and western coasts:

Location	Region
Visakhapatnam	Andhra Pradesh (East coast)
Mangaluru	Karnataka (West coast)
Padur	Karnataka (West coast)

Phase II reserves (at additional locations such as Chandikhol and Padur expansion) have been planned to further increase storage. Underground caverns are used because they are safe, weather-proof and cost-efficient for very large volumes.

How Long Can the SPR Last?

India's SPR provides several days of the country's crude requirement on its own. Combined with crude and product stocks held by Oil Marketing Companies, India targets a buffer of a couple of weeks or more. India is also moving towards the standard maintained by major energy-importing economies of holding roughly 90 days of import cover over time.

How the SPR Protects Ordinary Indians

Price stability: Reserves can be released to calm panic-driven price spikes.
Supply continuity: Refineries keep running even if imports are temporarily disrupted.
Negotiating power: Not being desperate for immediate oil improves India's bargaining position.
Economic shock absorber: Limits the inflation and growth damage from oil crises.

A Smart Strategy: Buying Cheap, Storing for Costly Times

India has historically used periods of very low global crude prices to fill its strategic reserves cheaply. Buying oil when it is cheap and holding it for use during expensive, disrupted periods is a prudent national strategy — similar to how an individual builds an emergency fund when times are good.

Frequently Asked Questions

Does the SPR mean petrol won't get costlier during a war?▼

Not exactly. The SPR protects against supply disruption — ensuring oil keeps flowing to refineries if imports are blocked. It cushions but does not fully prevent price increases, because global crude prices can still rise sharply during a conflict, and India's reserves are limited in duration. The SPR mainly prevents a worst-case scenario of physical shortage and panic, and gives the government room to manage prices and find alternate suppliers calmly rather than under pressure.

Who manages India's Strategic Petroleum Reserve?▼

The SPR is managed by Indian Strategic Petroleum Reserves Limited (ISPRL), a special purpose vehicle under the Ministry of Petroleum & Natural Gas. ISPRL builds and maintains the underground storage caverns and oversees filling and drawdown. The reserves are separate from the commercial stocks that Oil Marketing Companies (Indian Oil, BPCL, HPCL) keep for day-to-day operations. Together, strategic plus commercial stocks form India's total emergency oil cover.

Why store oil underground in caverns?▼

Underground rock caverns are the most cost-effective and secure way to store very large quantities of crude oil. They are protected from weather, fire and external threats, lose far less to evaporation than surface tanks, and require less land. Many major oil-storing nations use the same method. The caverns are engineered so crude can be pumped in during cheap/normal periods and drawn out quickly during emergencies, making them ideal for a strategic reserve meant to last for years.

Can private companies use space in the SPR?▼

In some arrangements, foreign or private oil companies have been allowed to lease part of the strategic storage to keep their own crude, with the condition that India gets first right to use that oil in an emergency. This model helps offset the cost of building and maintaining the reserves while still ensuring national energy security. It is a win-win: companies get strategically located storage near Indian refineries, and India strengthens its emergency buffer at lower cost.

Is India's SPR enough compared to other countries?▼

India's current strategic reserves provide a useful but relatively modest buffer compared to major developed economies that target around 90 days of import cover. India has been steadily expanding capacity through additional phases and locations and combining it with commercial stocks to improve resilience. Given India's very high import dependence, growing the SPR is a long-term energy-security priority — but building large reserves is expensive and takes years, so it is being scaled up gradually.