Global oil reserves drop to their lowest since 2003, highlighting the growing strain on global energy markets as the prolonged closure of the Strait of Hormuz disrupts one of the world’s most critical oil supply routes. According to data released by the U.S. Energy Information Administration (EIA), oil inventories across the 38 member nations of the Organization for Economic Co-operation and Development (OECD) have fallen to their lowest level in 23 years. The decline comes as millions of barrels of Middle Eastern crude remain unable to reach global markets, forcing countries to draw heavily from emergency reserves while increasingly relying on U.S. exports to meet demand.

The Strait of Hormuz has historically served as a vital artery for global energy trade. In 2025, it carried approximately 20 million barrels per day (bpd) of oil and petroleum products, accounting for around 25% of global seaborne oil trade and nearly 20% of worldwide oil consumption. However, disruptions linked to regional conflict have sharply reduced throughput, creating one of the most significant supply shocks in recent years.

Hormuz Disruptions Trigger Global Supply Crunch

The closure of the Strait of Hormuz has dramatically reduced oil flows from the Middle East.

According to EIA data:

Before the disruption, nearly three-quarters of the crude oil passing through Hormuz was destined for Asia. China and India alone accounted for approximately 44% of total exports through the strait, making them particularly vulnerable to supply shortages.

While alternative export routes exist, they are insufficient to fully compensate for lost capacity. Saudi Arabia’s East-West Pipeline can transport up to 7 million bpd, while the UAE’s Habshan-Fujairah pipeline has a capacity of 1.8 million bpd. Even with these routes operating, the International Energy Agency (IEA) estimates available alternative capacity at only 3.5 to 5.5 million bpd, leaving a substantial supply gap.

Also Read: Earth’s Rotation Slowing At Record Pace In 3.6 Million Years: Could Days Exceed 24 Hours?

Emergency Stockpiles Come Under Pressure

To stabilize markets, the International Energy Agency announced a coordinated release of 400 million barrels from member countries’ emergency reserves in March 2026, the largest emergency release in the agency’s history.

At the time, IEA member nations collectively held:

• More than 1.2 billion barrels in public emergency reserves
• Approximately 600 million barrels in mandatory industry stocks
• Additional commercial inventories held by private operators

Despite these releases, stockpiles continue to decline as global demand remains strong and supply disruptions persist.

Also Read: 3 Flesh-Eating Screwworm Cases Found In US, Officials Warn Of Serious Agricultural Threat

United States Becomes the Market’s Emergency Supplier

The United States has emerged as the primary alternative supplier for global markets as global oil reserves drop to their lowest since 2003.

Before the conflict, U.S. crude oil and petroleum product exports averaged approximately 3 million barrels per day. Since then, exports have surged to 13.6 million barrels per day, the second-highest level on record.

This increase has come at a cost to domestic inventories.

Recent EIA figures show:

• Total U.S. crude and petroleum product inventories fell by 10.6 million barrels in one week
• National stockpiles now stand at 1.57 billion barrels, the lowest level since 2004
• Commercial and government crude stocks dropped 15.9 million barrels, marking the second-largest weekly decline on record

The rapid drawdown reflects growing demand from Europe and Asia as buyers seek alternatives to Middle Eastern crude.

Also Read: China’s Underwater Data Centre Powered By Wind Energy Begins Operations

Strategic Petroleum Reserves Continue to Shrink

The U.S. Strategic Petroleum Reserve (SPR), often viewed as a last line of defense during supply emergencies, is also declining rapidly. The reserve lost another 7.9 million barrels last week, bringing total losses since the start of the Iran conflict to 58 million barrels.

Current SPR holdings stand at:

• 357 million barrels
• Lowest level since January 2024

The continued depletion of strategic reserves has raised concerns about the ability of major economies to respond to future supply disruptions.

Also Read: May 2026 Was Second Warmest May On Record Globally, Says Copernicus Climate Report

India Faces Heightened Energy Risks

India remains among the countries most exposed to the ongoing crisis. According to a recent EY Economy Watch report, India’s strategic oil reserves are sufficient for only four to five days of domestic consumption.

The consultancy warned that the West Asia conflict has highlighted India’s dependence on imported energy, with average crude prices reaching $103.9 per barrel in April 2026, the highest level since July 2022.

Also Read: ‘Godzilla’ El Niño On The Way? Scientists Say 90% Chance Of Extreme Event