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Wednesday’s headline was supposed to calm oil markets: 400 million barrels of emergency reserves, unanimously approved by all 32 IEA members, the largest coordinated stock release in the agency’s 52-year history. Brent still closed above $91. WTI settled up over 4%. And overnight, Bloomberg has Brent back near $99. The market is telling you something about what reserves can and can’t fix.
What the IEA Actually Announced
IEA Executive Director Fatih Birol announced from Paris Wednesday that member countries have agreed to release 400 million barrels of emergency oil stocks in response to the supply disruption caused by the near-closure of the Strait of Hormuz. The release more than doubles the previous record of 182.7 million barrels, set in 2022 after Russia’s invasion of Ukraine. All 32 member governments voted unanimously. Germany releases 2.64 million tons. The UK contributes 13.5 million barrels. Japan starts releasing from next week. The reserves will hit the market over a timeframe the IEA described as appropriate to each country’s circumstances, which is not the same as immediately. Separately, Energy Secretary Chris Wright confirmed Wednesday that Trump has authorized the release of an additional 172 million barrels from the U.S. Strategic Petroleum Reserve, starting next week, over approximately 120 days.
Birol’s own statement undercut the headline: “The most important thing for a return to stable flows of oil and gas is the resumption of transit through the Strait of Hormuz.” Reserves can buy time. They can’t reopen a strait that Iran is mining.
Why It Didn’t Work
Three tankers were struck in or near the Strait on Wednesday. A Thailand-flagged cargo ship caught fire 11 nautical miles north of Oman, forcing a crew evacuation. Two further incidents were reported, one 50 nautical miles northwest of Dubai, another off the UAE coast. Iran has been planting mines in the Strait. U.S. Central Command said it had destroyed 16 Iranian minelayers near the strait. UAV strikes on IRGC control points are ongoing. Hezbollah launched another wave of rockets against Israel overnight. This is not a situation a reserve release resolves.
Macquarie put numbers on the mismatch. The 400 million barrels equates to roughly four days of global production and approximately 16 days of the volume that normally transits Hormuz. Per Macquarie’s note, cited by Reuters: “If that doesn’t sound like much, it isn’t.” Oil flows through the strait are currently at less than 10% of pre-war levels, according to the IEA’s own data. You can’t release your way out of a 90% supply disruption.
Iran is aware of the math. Tehran threatened on Wednesday that it would push oil to $200 a barrel, with its officials stating that not a single liter of oil would pass the Strait for the benefit of the U.S., Israel, or their partners. Whether that’s achievable is a separate question. That the threat is credible enough to move markets is the point.
The Gold Divergence
The story that didn’t get enough coverage Wednesday is gold. While oil surged more than 4%, gold fell nearly 1% to around $5,185 an ounce. Standard war-risk logic says both go up together. The divergence suggests something more specific is happening: the market is pricing this as an oil supply shock, not a broad flight-to-safety event. Money is rotating into energy, not defensives. That’s a read on duration. If traders expected a prolonged, unresolvable conflict, gold would be bid. The fact that it’s selling off while crude rallies implies the market still assigns meaningful probability to a resolution in the near term, or at least to the shock remaining contained to energy rather than spreading into a global recession narrative.
That thesis gets tested every time another tanker burns.
Iran’s Workaround and What It Means for the Supply Picture
Commodity tracking firm Kpler reported that Iran quietly restarted crude exports through its Jask oil terminal on the Gulf of Oman last week, with a tanker loading roughly 2 million barrels on March 7. Jask sits outside the Strait, which means Tehran can route some production around the bottleneck it’s simultaneously trying to close. It’s not enough to materially shift supply, but it’s a signal that Iran is managing its own economic exposure while keeping pressure on everyone else’s.
Gulf producers don’t have the same option. The Strait doesn’t just move crude: LNG, fertilisers, and refined products all flow through it. The IEA confirmed that global LNG supply has been cut by 20%, forcing higher-income Asian economies into direct competition with Europe for available cargoes. That’s a winter storage problem in the making for next year.
The Price Levels That Matter Now
Brent settled Wednesday at $91.98, up 4.8% on the day. WTI settled at $87.25, up around 4%. Bloomberg’s overnight reporting has Brent back near $99 in early Thursday trading as tanker attack news continued to flow. Monday’s intraday spike to $120 and crash to $86 set the range traders are working with. The $90 level is currently the line between “managed disruption” and “uncontrolled spike” in market psychology. Every tanker attack pushes the upper end of that range. Every credible ceasefire signal collapses it.
Trump said Wednesday evening that the U.S. has “got to finish the job” in Iran, which rules out any imminent diplomatic pivot on the American side. The oil market heard that. Brent near $99 overnight is the response.
The IEA reserve release bought a few hours of relative calm. The mines in the Strait took it back by afternoon. Watch $100 on Brent. That’s the level where the inflation calculus at central banks changes, and where the Fed’s “wait and see” posture on rate cuts starts to come under real pressure.
