IEA Holds 80% of Its Emergency Reserves in Reserve as Hormuz Supply Race Begins
Markets have priced a rapid return of Hormuz volumes, but physical restart timelines and cumulative supply losses remain the test.
Even as ICE Brent crude front-month fell to $71.13 on Wednesday (2026-07-01) — less than half the peak hit during the Strait of Hormuz closure — analysts were warning that the speed of the oil market's repricing had outrun the physical evidence. An Italian bank told clients on Tuesday (2026-05-19) that European energy and financial markets were significantly underpricing the timeline for restarting Persian Gulf infrastructure damaged during the conflict, citing damage to production facilities and unresolved logistics across the supply chain.1
Since the February 2026 attack on Iran and the subsequent closure of the strait, the global oil market has accumulated an estimated shortfall of nearly one billion barrels of crude, according to industry estimates cited by India Seatrade News. Roughly one-fifth of global oil consumption — around 20 million barrels per day — normally flows through that narrow passage, along with 30% of global fertiliser trade and significant volumes of LNG and petroleum products.4,3
Saudi Aramco moved quickly to limit the damage. The company shifted more than five million barrels per day to Red Sea terminals as an alternative routing, the same infrastructure limit that constrains any further expansion through that corridor. The existing pipeline capacity to Red Sea export terminals was already running at full utilisation by the time Saudi officials flagged the strategy, according to India Seatrade News.3
The IEA responded to the crisis by co-ordinating a release of 400 million barrels from members' strategic stockpiles — a move the agency's head said represented just 20% of available reserves. "We have still 80% in our pocket," Fatih Birol said, signalling that the agency retained significant capacity for further action if the strait did not reopen quickly. Asian equity markets rose on the announcement, with Japan's Nikkei 225 closing up 2.4% and South Korea's Kospi gaining 2.7%.2
The pace at which those borrowed barrels will need to be replaced is one of the constraints the market appeared to be discounting as prices fell. OilPrice.com reported on Sunday (2026-06-28) that even as tankers began exiting the Persian Gulf in growing numbers following the US-Iran ceasefire, analysts were "somewhat baffled by the speed" of the drop in crude futures. Iran struck a commercial vessel near the strait in the same week, a reminder that the 60-day ceasefire creates a political framework without yet resolving the physical security of transit.5
The downstream effects extend well beyond crude. Around 90% of India's LPG imports — a fuel relied upon by millions of households for cooking — transit the Strait of Hormuz, along with over 40% of India's fertiliser imports, the majority of which originate in the Middle East.4 Wood Mackenzie's Alan Gelder has said restoring the full supply chain, from repositioning ships to restarting refineries, would take weeks rather than days.
The asymmetry between what markets had priced by Wednesday (2026-07-01) and what the physical restart timeline suggests remains the central risk. NYMEX WTI front-month at $68.06 reflects a market treating the ceasefire as functionally equivalent to normalised supply — but the IEA's strategic reserve release has masked some of the cumulative shortfall, and that buffer will eventually need replenishing.2
Any setback to Hormuz traffic — a further vessel strike, a breakdown in ceasefire talks, or a slower-than-expected return of Iranian production — would force a rapid reassessment. The Italian bank's warning on timeline, made when the conflict was still acute, has not been formally revised. Whether physical cargo flows through the strait confirm or deny the market's optimism over the next two to three weeks is what will settle the spread between forward curve pricing and the current spot reality.1,5