Five weeks into the Iran war, the world is only now beginning to feel the full physical weight of the Strait of Hormuz closure. In March, cargo ships that had transited the strait before the conflict was declared continued arriving at ports across Asia, Europe, and the Americas, providing a buffer that masked the true scale of the disruption. That buffer is gone. IEA Executive Director Fatih Birol told the "In Good Company" podcast this week in plain terms: "In April, there is nothing." The implication for energy markets, and by extension for every balanced portfolio with exposure to equities, bonds, and currencies, is significant.
Birol's framing was unambiguous. The supply disruption caused by the Hormuz closure now exceeds 12 million barrels per day, more than twice the volumes lost in either the 1973 Arab oil embargo or the 1979 Iranian Revolution, each of which caused global recessions. The IEA has described the situation as the "greatest global energy security challenge in history." Strategic reserve releases, including the largest coordinated release on record, provide breathing room but, as Birol noted, "will not be a cure. The cure is opening up the Strait of Hormuz."
The Physical Pipeline Is Empty
The mechanism Birol described is straightforward but easy to underestimate. Oil and LNG cargoes that loaded in the Gulf before February 28 took weeks to reach their destinations. Those ships have now arrived. The next wave of cargoes never loaded, because the strait was effectively closed by March 4. Asian refineries, which typically receive 75% of Gulf oil and LNG exports, are now operating on inventories built before the war. Rystad Energy analyst Matt Bernstein told CBS News this week that even if the conflict wound down in the next few weeks, "there is no going back to pre-war normal," pointing to higher geopolitical and financial risks around Gulf trade that will persist regardless of when the strait reopens.
The demand destruction this will cause is already visible. Pakistan has told cricket fans to watch games from home to preserve fuel. Shortages have been reported across Thailand. Hundreds of Australian petrol stations have reported fuel shortfalls. South Korea has enacted a five-month restriction on naphtha exports. Consultant FGE NexantECA estimates Asian demand has already fallen by nearly 2 million barrels per day in March, a reduction that will deepen in April as inventories thin further.
THE MID-APRIL DEADLINE Geopolitical strategist Marko Papic of BCA Research has put a specific timeline on the deterioration. Total lost supply will roughly double by mid-April, from 4.5-5 million barrels per day to approximately 9-10 million, as the pipeline of pre-war cargo runs out globally. Oil executives at CERAWeek were equally direct. Chevron CEO Mike Wirth described "very real, physical manifestations of the closure of the Strait of Hormuz that are working their way around the world." Shell CEO Wael Sawan confirmed that disruptions that began in South Asia have "moved to Southeast Asia, Northeast Asia and then more so into Europe as we get into April."
The U.S. and IEA have responded with the largest coordinated strategic reserve release on record, some 400 million barrels, and the U.S. temporarily lifted sanctions on 30 Russia-connected petroleum tankers carrying 19 million barrels of oil to ease physical market pressure. These measures buy time but do not resolve the fundamental problem: the strait carries 20 million barrels of oil per day under normal conditions, and no combination of reserve releases and rerouted pipeline flows can offset that volume indefinitely.
Canadian Portfolio Implications
The IEA's warning lands differently in Canada than in most other G7 countries because Canada is a net energy exporter. Higher sustained oil prices improve the cash flows of Canadian energy producers operating in a jurisdiction entirely unaffected by the conflict. Canadian Natural Resources, Suncor, and Cenovus, all with oil sands assets that are long-life and low-decline, benefit directly from Brent prices above $100/barrel. The TSX energy sector is up approximately 42% over the past 12 months as a result.
The risk is the macro overlay. Nobel Prize-winning economist Paul Krugman told CBS News this week that "$150 oil is not hard to tell a story for, and $200 is not crazy." At those levels, global demand destruction becomes severe, Chinese industrial activity contracts sharply, and the recession risk in Canada's major trading partners rises materially. A portfolio that benefits from higher energy prices in the short term can still be hurt significantly by a global growth shock in the medium term. The stagflation scenario, rising prices combined with slowing growth, is the most difficult environment for balanced multi-asset portfolios and the one most investors are not positioned for.
SOURCES IEA (Fatih Birol, "In Good Company" podcast), CNBC, CBS News (Paul Krugman, Matt Bernstein/Rystad Energy), Bloomberg, S&P Global CERAWeek (Chevron CEO Mike Wirth, Shell CEO Wael Sawan), BCA Research (Marko Papic), FGE NexantECA, Wikipedia (Economic impact of 2026 Iran war), Lloyd's List Intelligence, Kpler, Congress.gov CRS Report