Global Oil Crisis Deepens as Iran Threatens Strait of Hormuz
The effective closure of the Strait of Hormuz by Iran is sending shockwaves through the global energy market, forcing nations to tap into strategic oil reserves and raising fears of a prolonged economic crisis. Since February 28th, Iran has blocked passage for vessels carrying approximately 20 percent of the world’s oil and liquified natural gas (LNG), creating a critical bottleneck for Gulf producers.
The Price Surge and Initial Responses
The disruption has already manifested in soaring oil prices. Last week, Brent crude exceeded $100 a barrel, a significant jump from the pre-war price of around $65. Initial attempts by the United States to reopen the strait – including calls for a Western naval escort – have been unsuccessful. President Trump issued a 48-hour ultimatum to Iran on Sunday, threatening attacks on its power plants if the waterway wasn’t reopened, but appeared to backtrack on Monday by pausing planned strikes and claiming talks were underway – a claim Iran has denied.
Escalating Threats and Regional Instability
Iran has responded with escalating threats, vowing to strike power plants in Israel and those supplying US military assets in the region if its energy infrastructure is targeted. Iran warned it would “completely close” the Strait of Hormuz if the US were to follow through on threats against its power plants. This has prompted Saudi Arabia, the UAE, Iraq, and Kuwait to curtail their own oil output, exacerbating supply concerns.
The IEA’s Emergency Response: Releasing Strategic Reserves
In a bid to mitigate the crisis, the 32 member countries of the International Energy Agency (IEA) agreed on March 11th to release 400 million barrels of oil from their strategic emergency reserves – the largest stock draw in the agency’s history, surpassing the 182 million barrel release following Russia’s invasion of Ukraine in 2022.
A Look Inside Strategic Oil Reserves
Strategic oil reserves, also known as strategic petroleum reserves (SPR), are emergency stockpiles of crude oil maintained by governments to address supply disruptions caused by events like wars and economic crises. Governments typically acquire oil through agreements with private companies to replenish their reserves.
China’s Massive Reserves
China holds the world’s largest strategic oil reserve, though the exact amount remains undisclosed. Estimates suggest reserves of around 1.13 billion barrels as of 2025. Located along China’s eastern and southern coasts, these reserves are designed to cover approximately 30 days of imports. Chinese companies, like Sinopec, are now seeking permission to utilize these reserves as the conflict in Iran intensifies, with Sinopec President Zhao Dong stating they anticipate government policies to support refinery production.
The United States’ Strategic Petroleum Reserve
The US maintains one of the largest IEA reserves, holding 415 million barrels. Established in 1975 following an Arab oil embargo, the SPR is designed to cover roughly 200 days of net crude imports. The Trump administration has already lent 45.2 million barrels from the SPR to oil companies. Presidents have historically tapped into the SPR to stabilize oil markets during times of crisis, including during hurricanes impacting Gulf Coast infrastructure and following Russia’s invasion of Ukraine.
Japan’s Extensive Stockpiles
Japan also possesses substantial strategic oil reserves, totaling approximately 470 million barrels at the end of 2025, enough to meet 254 days of domestic consumption. Established in 1978 after the 1973 oil crisis, Japan’s reserves are located at ten coastal bases and are crucial given the country’s heavy reliance on imported fossil fuels.
UK and EU Reserves
The UK holds around 38 million barrels of crude oil and 30 million barrels of refined products, sufficient for approximately 90 days of supply. EU member nations, including Germany, France, Spain, and Italy, also maintain strategic reserves. Germany holds 110 million barrels of crude and 67 million barrels of finished products, although France has around 120 million barrels. Spain and Italy hold approximately 150 million and 76 million barrels respectively.
FAQ
Q: What is the Strait of Hormuz and why is it important?
A: The Strait of Hormuz is a narrow waterway connecting the Persian Gulf to the Gulf of Oman and the Arabian Sea. It is the world’s most important oil transit choke point, carrying approximately 20% of global oil supply.
Q: What are strategic oil reserves used for?
A: Strategic oil reserves are emergency stockpiles used by governments to mitigate disruptions in oil supply caused by geopolitical events, natural disasters, or other crises.
Q: How much oil is being released from strategic reserves?
A: The IEA member countries have agreed to release a total of 400 million barrels of oil from their strategic reserves.
Q: Is this enough to offset the disruption?
A: While a significant release, whether it is sufficient to fully offset the disruption caused by the closure of the Strait of Hormuz remains to be seen and will depend on the duration of the crisis and the extent of further supply disruptions.
Did you know? The 1973 oil crisis, triggered by an Arab oil embargo, led many countries to establish strategic petroleum reserves to protect themselves from future supply shocks.
Stay informed about the evolving situation in the Middle East and its impact on global energy markets. Explore our other articles on geopolitics and energy security for further insights.
