West Asia war: Impact of disruptions on global fuel supply, with potential for coal and n-power switch

The Strait of Hormuz, epicentre of the ongoing US-Iran standoff, is disrupting approximately 20 million barrels of oil per day — roughly 20% of global petrol...

What Happened

The Strait of Hormuz, epicentre of the ongoing US-Iran standoff, is disrupting approximately 20 million barrels of oil per day — roughly 20% of global petroleum supply — triggering what the IEA has described as the largest supply disruption in history.
Analysts and international institutions have drawn comparisons with the 1973 Arab oil embargo, but the scale and structure of the 2026 disruption are significantly larger and more asymmetric in their impact.
The 1973 embargo removed approximately 4.5 million barrels per day from global supply; the 2026 Hormuz closure threatens a supply shortfall of up to 15 million bpd even after accounting for pipeline rerouting.
Unlike the 1973 embargo — which targeted Western nations — the 2026 crisis disproportionately affects developing Asian economies (China, India, Japan, South Korea) through which approximately 80% of Hormuz oil flows.
Gulf exporters can reroute at most 3.5 million barrels/day through alternative pipelines, leaving a net shortfall of approximately 15 million bpd if the strait remains blocked for a sustained period.

Static Topic Bridges

The 1973 Arab Oil Embargo — Context and Consequences

The 1973 Arab oil embargo was initiated by the Organization of Arab Petroleum Exporting Countries (OAPEC) — a subset of OPEC — in October 1973, in response to US and Western support for Israel during the Yom Kippur War (Arab-Israeli War of October 1973). Arab oil producers cut production and imposed an embargo on the United States, the Netherlands, and other nations that had supported Israel.

Oil prices quadrupled from approximately $3/barrel to $12/barrel within months of the embargo.
The embargo was lifted in March 1974, but its economic consequences — including stagflation in Western economies — persisted for nearly a decade.
Volume removed: approximately 4.5 million barrels per day.
The embargo directly led to the creation of the International Energy Agency (IEA) in 1974 by the OECD, with a mandate to coordinate emergency stock releases and energy diversification.
Target: Western oil-importing nations (the US, Western Europe); Asian economies were less exposed in 1973 due to lower industrial development and oil dependence.

Connection to this news: The 2026 Hormuz disruption is structurally different: it is not a deliberate embargo by exporters but a physical chokepoint blockade, removing 3–5 times the volume of the 1973 embargo and primarily affecting Asian economies rather than Western ones.

OPEC and OAPEC — Institutional Distinctions

OPEC (Organization of the Petroleum Exporting Countries) was established in 1960 in Baghdad by Iran, Iraq, Kuwait, Saudi Arabia, and Venezuela. It is a cartel of oil-producing nations that coordinates petroleum production and pricing policies. OAPEC (Organization of Arab Petroleum Exporting Countries), established in 1968, is a sub-group comprising Arab OPEC members; it was the body that actually administered the 1973 embargo.

OPEC headquarters: Vienna, Austria; current membership: 13 countries (as of 2026).
OPEC+ (since 2016): OPEC members plus 10 non-OPEC producers including Russia, Mexico, Kazakhstan — now the effective forum for global oil supply coordination.
OAPEC headquarters: Kuwait City; separate from OPEC with overlapping membership.
The 2026 crisis is not driven by OPEC/OAPEC production decisions but by a military-geopolitical blockade of the primary transit route — a categorically different supply shock mechanism.
Saudi Arabia's East-West Pipeline (capacity: ~5 million bpd, actual available: ~2 million bpd) and UAE's Habshan-Fujairah pipeline (capacity: ~1.5 million bpd) are the primary overland bypass routes; combined rerouting capacity is approximately 3.5 million bpd.

Connection to this news: Unlike 1973 — when OAPEC could end the crisis by lifting the embargo — the 2026 disruption requires a military-diplomatic resolution between the US and Iran to reopen the strait; no OPEC decision can restore supply flow through the blocked waterway.

Global Oil Market Architecture — Spot Markets, Futures, and Price Benchmarks

Modern oil markets operate through a system of price benchmarks (Brent, WTI, Dubai/Oman) and financial instruments (futures, options, swaps) that allow producers and consumers to hedge price risk. A supply disruption of the magnitude seen in 2026 triggers cascading effects: physical shortfalls, speculative futures buying, drawdown of commercial stocks, and emergency strategic reserve releases.

Brent Crude: produced in the North Sea; benchmark for Atlantic basin and international contracts. Dubai/Oman crude: benchmark for Gulf-to-Asia trade (the most directly affected by Hormuz closure).
IEA Emergency Response: the IEA can authorise collective stock releases by member states (minimum 90-day reserve requirement). Three collective releases to date: 1991 (Gulf War), 2005 (Katrina), 2022 (Ukraine war — 60 million barrels).
India is not an IEA member (IEA membership requires OECD membership); India participates as an Association Country with observer status.
The US Strategic Petroleum Reserve (SPR) has a capacity of approximately 714 million barrels; the US has released SPR stocks multiple times since 2021.
Structural difference from 1973: global oil trade is now priced through transparent spot markets and futures exchanges; in 1973, most oil was priced through long-term bilateral contracts, making market adjustment slower.

Connection to this news: The 2026 supply shock tests the IEA emergency architecture in ways the 1973 crisis prompted it to be built: whether coordinated stock releases can bridge a 15 million bpd shortfall — approximately four times the scale of any previous IEA release — is the defining question for global energy security governance.

India's Energy Import Dependence and Exposure

India is the world's third-largest oil importer (after China and the US). Approximately 85% of India's crude oil requirement is met through imports, of which roughly 60% comes from West Asian producers — primarily Saudi Arabia, Iraq, UAE, and (before 2019 sanctions) Iran.

India's crude oil import: approximately 4.5–5 million barrels per day (pre-crisis level).
West Asia's share of India's oil imports: ~55–60%.
India's refining capacity: ~5.1 million barrels per day; among the top 5 globally.
India imports both crude (for domestic refining) and LPG/products; supply disruptions affect household cooking fuel (LPG) and transport fuel (petrol/diesel) pricing.
India's SPR capacity: 5.33 MMT at Visakhapatnam, Mangaluru, and Padur; covers approximately 9.5 days of crude supply at full capacity.
India's Hydrocarbon Vision 2030 and its National Energy Policy aim to reduce import dependence through renewables, ethanol blending (20% target by 2025), and domestic upstream development.

Connection to this news: India's disproportionate exposure to Hormuz — given that most of its West Asian oil imports transit through the strait — and its below-capacity SPR stockpile make the current crisis a direct test of India's energy security framework.

Key Facts & Data

1973 Arab oil embargo: initiated October 1973 by OAPEC; lifted March 1974; oil price quadrupled ($3 → $12/barrel)
Volume removed in 1973: ~4.5 million barrels/day
2026 Hormuz disruption: ~20 million barrels/day at risk; net shortfall ~15 million bpd after pipeline rerouting
Pipeline rerouting capacity from Gulf: ~3.5 million bpd (Saudi East-West + UAE Habshan-Fujairah)
~80% of Hormuz oil bound for Asian markets (China, India, Japan, South Korea)
IEA established: 1974; 31 member states (all OECD); 90-day reserve requirement
Previous IEA collective stock releases: 1991 (Gulf War), 2005 (Katrina), 2022 (Ukraine) — 60 million barrels in 2022
India's crude import dependence: ~85%; West Asia share: ~60%
India's SPR: 5.33 MMT capacity; 64% full as of March 2026 (~9.5 days strategic cover)
OPEC founded: 1960 (Baghdad); headquarters: Vienna; 13 members as of 2026
OPEC+ (since 2016): OPEC + 10 non-OPEC producers including Russia