Emergency Oil Stockpiles Could Cover Major Supply Gap for 180 Days, Analysis Shows

A prolonged geopolitical crisis could test the limits of global oil reserves, with government-controlled emergency stockpiles sufficient to cover the current supply gap for only 180 days, according to an analysis of International Energy Agency (IEA) data. The depletion of these buffers, particularly in the United States, leaves the global oil market increasingly vulnerable to price shocks.

The Scale of the Disruption

Analysts estimate the current daily supply shortfall to be 5 million barrels per day (bpd). This follows a cumulative loss that Saudi Aramco's head believes has reached 2.6 billion barrels, a figure that Reuters calculations suggest is the largest supply disruption on record apart from the 1979 Iranian revolution.

The supply gap may have widened further in July after Ukrainian drone activity reportedly shut down the Kazakh CPC pipeline, which transports 1.8 million bpd, according to the source report.

Dwindling Emergency Reserves

The IEA, the West's energy watchdog, oversees a total of 1.5 billion barrels in government and commercial stocks. While this appears sufficient to cover the 5 million bpd gap for 300 days, the agency can only mandate the release of government-held strategic reserves.

This accessible portion amounts to just 0.9 billion barrels, enough to last 180 days at the current rate of disruption. Key details on the state of these reserves include:

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• The IEA announced a 400 million barrel release from emergency reserves in March.
• The U.S. Strategic Petroleum Reserve (SPR), which holds one-third of the IEA's government stocks, has fallen to its lowest level since January 1983.
• The U.S. Government Accountability Office warned in May of the SPR's deteriorating infrastructure. Analysts from Rapidan Energy estimate that a quarter of the reserve, or over 100 million barrels, may no longer be accessible.
• This could leave the U.S. with only 200 million barrels of readily available stocks, enough to cover the global supply gap for just 40 days.

Given the limited stocks in many member countries, a new coordinated IEA release is unlikely, said Christian Egeland from the consultancy Energy Aspects. Hamad Hussain of Capital Economics noted that depleted inventories have reduced the buffer against supply shocks, leaving the market vulnerable to sharp price increases.

Broader Market Vulnerabilities

The strain extends beyond crude oil to refined products. Global inventories of diesel and jet fuel are at the bottom of their five-year range, according to Morgan Stanley. Survo Sarkar of DBS Bank stated that damage to Middle Eastern and Russian refineries has severely impacted the supply of these critical fuels.

In contrast, China appears better positioned to weather a crisis. While Beijing does not disclose its reserve levels, Energy Aspects estimates it held nearly 1.7 billion barrels of crude in July. This stockpile could cover its pre-war imports of about 5.5 million bpd from the Strait of Hormuz for almost a year, providing a significant buffer not available to most Western economies.