The US-Iran War: The potential economic impact and how businesses can react

Key takeaways:

• • • The Strait of Hormuz crisis threatens a global recession — The effective closure of the Strait, which is being driven more by insurance withdrawal and risk perception than a physical blockade, has effectively halted roughly 20% of global petroleum flow. If this disruptions persist beyond 30 days, economic modeling points to overwhelming recession risk for major importing economies, with oil potentially reaching $100 to $200 per barrel depending on severity.

    • The world is facing an unprecedented dual-chokepoint shipping crisis — With the Strait of Hormuz effectively shut and the Houthis resuming attacks on the Suez/Bab el-Mandeb corridor, roughly one-third of global seaborne crude trade is compromised simultaneously. All five major container lines have suspended Hormuz transits, and the cascading delays will hit supply chains far beyond the Middle East, including those companies with no direct Gulf exposure.

    • Companies that act now will fare far better than those that wait — Supply chain disruptions propagate on a lag of two to four weeks, meaning that the pain from today’s anchored tankers hasn’t arrived yet. Businesses should immediately audit their Gulf supply chain exposure, secure alternative freight capacity before it disappears, and prepare for a significant escalation in cyber threats from Iran and its allies.

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Just days into the largest military operation undertaken by the United States since the 2003 Iraq invasion, the potential closure of the Strait of Hormuz has triggered the most severe energy supply disruption since Russia’s invasion of Ukraine. The conflict with Iran has removed roughly 20 million barrels per day of crude from global markets and sent oil prices to above $80 as of press time. The conflict’s trajectory over the coming weeks will determine whether the world faces a manageable price shock or a full-blown recession.

How we got here

The February 28 strikes order by President Donald J. Trump followed weeks of negotiations around Iran’s nuclear program that ended without a deal just two days before the strikes began. Administration officials have since acknowledged that the timing was driven in part by Israel’s plans to strike Iran independently.

Iran’s Supreme Leader Ayatollah Ali Khamenei, age 86, along with his defense minister Brigadier General Aziz Nasirzadeh, the commander of the Islamic Revolutionary Guard Corps (IRGC), and approximately 5 to 10 senior Iranian officials, died in the opening salvo of the operation.

Even after the destruction of a large segment of Iran’s senior leadership, the war continues on. Hezbollah launched a rocket strike on March 3 with Israel initiating a ground invasion of Lebanon in response. Iran’s retaliation has extended across the region as drone and missile strikes have hit targets across Qatar, the United Arab Emirates (UAE), Kuwait, and Bahrain, while the US Embassy compounds in both Kuwait and Riyadh have been struck directly. Six American service members have been killed thus far.

Indeed, the regional escalation has given Iran the context to play one of the most feared cards in its arsenal — and one with the potential to throw an already fragile global economy into recession.

On March 2, Iran closed the Strait of Hormuz, vowing to attack any ship trying to pass through the strait. An European Union official said that vessels crossing the strait began receiving VHF radio transmissions from the IRGC stating that no ships would be permitted to pass.

Ship-tracking data based on the MarineTraffic platform showed at least 150 tankers — crude oil and LNG vessels (those specifically built to transport liquefied natural gas — anchored in open Gulf waters. At least five tankers have been struck near the Strait, including one off Oman that was set ablaze, while the US-flagged tanker Stena Imperative was hit by two projectiles near Bahrain. On March 2, Marine insurers Gard, Skuld, and NorthStandard stated publicly they would cancel war-risk coverage effective March 5. One day later, four more of the 12 global insurance groups joined them, with London P&I Club, American Club, Steamship Mutual, and Swedish Club announcing similar moves.

Energy markets absorb the most severe supply shock in years

In light of 20 million barrels per day of crude being frozen out of the global markets, brent crude surged as much as 13% before settling at $83 per barrel, while WTI crude jumped to $76 at press time — both at their highest levels since the June 2025 conflict. Further, Reuters reported that several major oil companies and trading houses suspended shipments through the Strait as soon as strikes began.

“Unless de-escalation signals emerge swiftly, we expect a significant upward repricing of oil,” said Rystad Energy’s Jorge León, head of the company’s geopolitical analysis, citing the immediate impact of halting of traffic through Hormuz. UBS analysts warned clients that a material disruption scenario could send brent crude above $120 per barrel, while Barclays projected $100 per barrel as increasingly plausible. Just twenty-four hours later, that range has widened considerably. Goldman Sachs now models $120 to $150 per barrel in a prolonged war, JPMorgan sees $120 if the war lasts beyond three weeks, and Deutsche Bank’s worst-case approaches $200 if Iran mines the Strait.

OPEC+ announced a modest 206,000 barrel per day output increase for April, but as León told Reuters, markets are now more concerned with whether barrels can physically move than with spare capacity on paper. If Gulf export routes remain constrained, additional production provides limited immediate relief.

Global shipping faces an unprecedented dual-chokepoint crisis

While the energy supply shock is severe, it is only one dimension of a broader shipping disruption that has no modern precedent. For the first time in history, two of the world’s most critical maritime chokepoints are simultaneously compromised — the Strait of Hormuz and the Suez Canal/Bab el-Mandeb corridor, the latter under renewed threat after the Houthis announced they would resume attacks. Together, these two passages that connect Asia to Europe handle roughly one-third of the global seaborne crude oil trade and a significant share of containerized cargo. All five major container lines — Maersk, MSC, CMA CGM, Hapag-Lloyd, and COSCO — have suspended or halted transits through Hormuz and are rerouting via the Cape of Good Hope, adding weeks to voyage times.

The practical consequences for businesses extend well beyond higher shipping costs. The rerouting absorbs vessel capacity that was already stretched thin, meaning delays will cascade across trade lanes that have no direct connection to the Middle East. Companies that source components from Asia, ship finished goods to Europe, or depend on just-in-time inventory models should expect weeks — not days — of compounding delays.

Dubai, Doha, and Abu Dhabi — three of the world’s busiest air cargo hubs — are also facing disruptions, meaning the usual fallback of shifting urgent shipments to air freight is itself constrained. For affected companies, the window to secure alternative routing and lock in freight capacity is closing fast; those companies that wait for the March 5 insurance deadline to pass before acting will find themselves competing for scarce logistics options in a market where scarcity is already the defining feature.

3 scenarios and their divergent economic consequences

There are three most likely scenarios as this conflict unfolds, each with their own challenges and potential outcomes:

Scenario 1: Rapid regime collapse and quick normalization

Credible but unlikely in the near term, this scenario banks on the fact that Iran’s opposition is real — the protest movement of the last year or so has been the largest since 1979, and the regime’s legitimacy has been severely eroded by economic collapse and violent crackdowns. If internal collapse occurs, energy markets would normalize rapidly.

Brent crude would likely retreat to the $70 to $75 range within weeks as the primary disruption drivers — fear and insurance withdrawal, not physical blockade — dissipates. Tanker traffic would resume once insurers restore war-risk coverage.

Scenario 2: Prolonged conflict, Strait mostly reopened

This is the most likely outcome based on available analysis. Energy Aspects founder Amrita Sen said she expects oil prices to hold around $80 for some time, noting it is unlikely Iran could maintain a complete closure. She assessed that the US and Israel possess the military capability to neutralize Iran’s ability to fully shut down the Strait but acknowledged that sporadic attacks on individual vessels are far harder to prevent.

This is the critical distinction: A full blockade is unsustainable against US naval superiority, but one-off tanker strikes create an insurance and risk environment that chills commercial traffic almost as effectively. In this scenario, oil prices remain very high before gradually declining as the U.S. Navy establishes escort operations and mine clearance, with an open question revolving around insurance companies’ willingness to insure floating barrels of flammable liquid sailing into an open warzone, even under escort. Asian refiners face weeks of constrained supply access.

Scenario 3: Sustained Strait closure for weeks or months

This is the catastrophic tail risk. Roughly 20% of global petroleum consumption and significant LNG volumes moves through the Strait daily, representing an estimated $500 billion in annual energy trade. Saudi Arabia’s East-West Pipeline and the UAE’s Fujairah pipeline offer bypass capacity, but these routes can absorb only a fraction of the 15 million barrels per day now stranded.

Capital Economics estimated that a sustained $100 crude price could add 0.6 to 0.7 percentage points to global inflation. And UBS warned that if disruptions extend beyond three weeks, Gulf producers could exhaust storage capacity and be forced to shut in output, pushing brent crude into the $100 to $120 range if not substantially higher if a significant blockade is held for a long duration.

The economic modeling is unambiguous, however, showing that disruption beyond 30 days carries overwhelming recession risk for major importing economies.

What companies should be doing right now

Of course, the economic impact of this conflict will not arrive all at once. Supply chain disruptions propagate on a lag — the tankers anchored outside Hormuz today represent goods and energy that won’t arrive at their destinations in two to four weeks. Companies that wait until these shortages materialize before they develop contingency plans will find themselves competing for scarce alternatives alongside everyone else. The window to act is now, not when the pain becomes visible.

Audit your supply chain exposure immediately

Any inputs, components, or raw materials that originate from or move through the Persian Gulf are at risk — and that extends well beyond oil. For example, one-third of global fertilizer trade passes through the Strait of Hormuz, meaning agricultural and chemical supply chains face disruption as well.

Business leaders should identify their companies’ Tier 1 and Tier 2 suppliers that have Gulf exposure, assess existing inventory buffers, and begin conversations with alternative suppliers before demand for those alternatives spikes. And companies with operations dependent on Middle Eastern air hubs — such as Dubai, Doha, Abu Dhabi — should assume they’ll face weeks of disruption to business travel and cargo routing and therefore plan accordingly.

Prepare for a serious escalation in cyber threats

Iran and its allies — including Russia, which has condemned the strikes and has well-documented cyberwarfare capabilities — have historically used cyber operations as an asymmetric response to kinetic military action. Indeed, there are signs already emerging that such actions are already taking place.

US critical infrastructure, financial services, and professional services firms are all plausible targets. The steps to prevent this are straightforward but urgent: Companies need to ensure that multi-factor authentication is enforced across all systems, verify that endpoint detection and backup protocols are current, brief employees on heightened phishing and social engineering risks, and confirm that incident response plans are not just documented but actually ready to be exercised.

The cost of preparation is negligible; the cost of a ransomware attack or data breach during a period of global economic stress is not.

Peering through the fog of war

As the conflict’s economic aftershocks move from risk to reality, the companies that act decisively now by diversifying supply chains, securing logistics, and hardening defenses will not just weather the disruption, but emerge more resilient whatever the outcome.

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You can find out more about the geopolitical and economic outlook for 2026 here