Global Oil Crisis Deepens As Inventories Hit Historic Lows

U.S. Strategic Oil Reserve Falls To Lowest Level Since 1983

Since the outbreak of the Strait of Hormuz crisis, the United States has continuously released crude oil from its Strategic Petroleum Reserve (SPR). During the statistical period ending June 19, the U.S. strategic reserve dropped by 9.05 million barrels in a single day, leaving total inventories at 331.2 million barrels, the lowest level in 43 years since 1983.

The decline is particularly significant compared with historical levels. In 2009, the U.S. Strategic Petroleum Reserve reached a record peak of 726.6 million barrels. Today, remaining reserves are less than half of that historical high.

If the Trump administration's previously announced plan to release 172 million barrels of crude oil is fully implemented, U.S. strategic reserves could fall to around 243 million barrels, equivalent to only one-third of the legally required storage capacity.

The pressure extends beyond strategic reserves. When combined with gasoline, diesel, and other refined petroleum inventories, total U.S. oil stocks have fallen to their lowest level since records began in 1985, raising concerns over the country's energy security buffer.

Global Oil Inventories Enter A Historic Decline

The unprecedented inventory shortage did not develop overnight. Emergency reserve releases triggered by the U.S.-Iran conflict, combined with decades of strategic stock consumption, have gradually weakened America's energy reserve capacity.

As a key stabilizing force in global energy markets, the continued decline of U.S. strategic reserves has reduced the global oil market's ability to absorb unexpected supply disruptions.

Strategic petroleum reserves have long served as the final defense mechanism against energy crises, designed to offset sudden supply interruptions. However, the latest U.S.-Iran conflict has severely disrupted global energy supply chains. The near suspension of transportation through the Strait of Hormuz has affected around 20% of global crude oil and LNG trade, creating one of the most severe global oil supply disruptions in recent years.

To stabilize markets, 32 International Energy Agency member countries jointly released 400 million barrels of strategic petroleum reserves, marking the largest coordinated reserve release in history. The United States became the largest contributor, repeatedly using its strategic inventory resources and pushing reserves closer to critical levels.

Industry analysts have warned that the U.S. Strategic Petroleum Reserve needs to maintain at least 150 million to 200 million barrels to ensure basic operational security. Current inventory levels leave limited room for further adjustments.

A former International Energy Agency official also warned that maintaining approximately 250 million barrels after reserve releases would already approach an alarming threshold. More importantly, U.S. storage relies heavily on salt cavern facilities, which have strict operational safety requirements. Inventory levels cannot fall below 33% of total capacity, otherwise the structural stability of storage facilities could face irreversible damage.

This means U.S. energy policy tools for market intervention have become increasingly limited.

Global Energy Reserves Face Collective Pressure

The U.S. inventory crisis reflects a broader global decline in oil reserves. Since the outbreak of the U.S.-Iran conflict in February, global commercial crude oil inventories and strategic reserves have collectively consumed 440 million barrels of oil and gas resources.

Related institutions forecast that by the end of 2026, oil inventories among OECD member countries may only cover around 50 days of market demand, marking the lowest level since 2003.

The continuous decline in global inventories highlights the underlying vulnerability of the international energy supply chain.

Oil Market Faces A New Wave Of Inventory Rebuilding

With inventory buffers nearly exhausted, even minor supply disruptions could trigger significant oil price reactions.

Executives from major energy companies have issued warnings that once key global energy hubs reach critically low inventory levels, international crude oil prices could potentially surge toward $160 per barrel.

Although major institutions hold different forecasts for future oil prices, they share a common view: the low-price oil environment seen before the conflict is unlikely to return in the short term.

Goldman Sachs expects Brent crude prices to decline to around $80 per barrel in the fourth quarter of 2026. Guolian Minsheng Securities believes that strong summer fuel demand combined with low inventories will limit downside risks. Macquarie forecasts an annual average oil price of $82.93 per barrel, while even a potential decline in 2027 may not restore the market to its previous stable condition.

Cushing Oil Storage Crisis Raises Market Concerns

Another major concern is the inventory situation at Cushing, Oklahoma, the delivery hub for U.S. WTI crude oil futures.

Current inventories at Cushing have fallen to only 20 million barrels, the lowest level since 2014 and dangerously close to operational limits.

Storage facilities require a 10% to 15% safety capacity buffer to maintain normal operations. A further inventory decline could disrupt crude storage and transportation activities while directly affecting the pricing mechanism of WTI crude oil futures, creating additional risks for global oil trading.

Global Oil Market Prepares For Massive Stock Rebuilding

After global inventories reached historic lows, a large-scale replenishment cycle is emerging as a key trend for the next one to two years.

The United States has already announced plans to rebuild inventories by purchasing 200 million barrels of crude oil within one year, exceeding the amount previously released from its strategic reserves.

Meanwhile, countries including India, Pakistan, and Australia are also increasing their strategic stockpiling efforts. New strategic reserve demand from multiple countries is estimated at around 500 million barrels. Combined with broader inventory rebuilding requirements, global additional oil and gas purchases could approach 1 billion barrels.

This massive wave of demand is expected to provide continued support for oil prices over the next several years. Inventory movements will become one of the most important indicators for forecasting future oil market trends.

Oil Supply And Demand Imbalance May Continue Into 2027

The restructuring of global oil supply and demand will inevitably reshape the influence of major oil-producing countries.

As U.S. energy regulation capabilities weaken, OPEC+ is expected to gain greater market influence. Global dependence on OPEC+ spare production capacity continues to rise, and repeated production adjustments demonstrate the organization's ability to influence global oil markets.

Although global oil supply may experience a slight surplus in 2027, before that point, every production decision from OPEC+ will remain a critical factor affecting international oil markets.

Strait Of Hormuz Recovery Cannot Immediately Restore Market Balance

Following the implementation of a U.S.-Iran peace agreement, the Strait of Hormuz reopened, but floating oil inventories remain a major factor influencing short-term oil prices.

Currently, global non-Iranian crude oil stored at sea is estimated at around 90 million barrels, while Iranian crude awaiting release in the Persian Gulf reaches approximately 68 million barrels.

However, restarting oil production, reallocating shipping capacity, and restoring transportation routes require significant time. As a result, supply and demand imbalances are likely to continue until 2027.

The U.S. shale oil industry is also facing a difficult balance. Higher oil prices create profitability opportunities, while relatively lower crude prices restrict production expansion. With fewer domestic energy policy tools available, the United States may become increasingly dependent on domestic shale oil output.

Global Energy Security Faces A New Era Of Uncertainty

The current global oil inventory crisis represents a major challenge to the international energy security system.

After the 1973 oil embargo, the International Energy Agency established a requirement for member countries to maintain emergency oil reserves equivalent to 90 days of consumption. However, even the largest coordinated reserve release in history has only provided temporary market relief during today's extreme geopolitical disruptions.

A new era of structurally low inventories and persistent market volatility is emerging. The global energy competition and transformation of oil markets are expected to become increasingly intense as countries seek greater control over energy security and supply stability.