What is Energy Security and Strategic Reserves?

Energy security, as defined by the International Energy Agency (IEA), is the "uninterrupted availability of energy sources at an affordable price." Analysts commonly assess it through the "four As" framework: availability (physical supply), accessibility (geopolitical ability to source it), affordability (price), and acceptability (environmental and social sustainability).

Strategic reserves are the operational backbone of short-term energy security — emergency stockpiles of crude oil held by the state to ride out disruptions such as wars, sanctions, natural disasters or sudden price spikes. India's vulnerability is structural: crude oil import dependence rose to 87.7% in 2023-24, up from 87.4% (PPAC), making the buffer strategically vital.

India's Strategic Petroleum Reserve (SPR) Programme

The programme is executed by Indian Strategic Petroleum Reserves Limited (ISPRL), incorporated on 16 June 2004, now a subsidiary under the Oil Industry Development Board (Ministry of Petroleum & Natural Gas). Reserves are stored in underground rock caverns on the east and west coasts, near refineries.

PhaseLocationCapacity (MMT)Status
Phase IVisakhapatnam (Andhra Pradesh)1.33Operational
Phase IMangalore (Karnataka)1.50Operational
Phase IPadur (Karnataka)2.50Operational
Phase IIChandikhol (Odisha)4.00Approved Jul 2021 (PPP)
Phase IIPadur (additional)2.50Approved Jul 2021 (PPP)

Phase I provides 5.33 MMT — about 9.5 days of consumption. Combined with crude held by refiners (~64.5 days), India's overall oil reserve cover is roughly 74 days. Phase II, approved in July 2021, adds 6.5 MMT of commercial-cum-strategic capacity at Chandikhol (4 MMT) and Padur (2.5 MMT) on a public-private-partnership model.

Significance and the IEA Benchmark

India became an Associate Member of the IEA in 2017. IEA full members are obliged to hold oil stocks equal to at least 90 days of net imports, a benchmark India works toward but has not yet met through dedicated strategic reserves alone. Strategic reserves serve three functions: insulating the economy from price shocks, providing supply continuity during crises, and giving negotiating leverage on import contracts.

UPSC Angle

This is a foundational GS3 topic spanning energy, infrastructure and economic resilience. Prelims tends to test discrete facts — ISPRL's storage sites, the 90-day IEA stock norm, and India's IEA associate (not full) membership. Mains demands integration: linking reserves to import-source diversification (West Asia, Russia, the US), to the renewable-energy transition, and to macro-stability, since oil prices feed directly into inflation, the current-account deficit and the rupee. Aspirants should also connect strategic reserves to the broader push for aatmanirbharta in energy through domestic exploration, biofuels and green hydrogen.

Foundation concept — no direct PYQ on the exact term; underpins recurring questions on energy security, oil import dependence and infrastructure.