Is Major Supply-Chain Disruption Looming As US-Iran War Drags On? Expert Flags Risks
The two-week ceasefire between the United States and Iran, announced in early April 2026, has paused direct bombing but has not ended the broader conflict or its ripple effects on global trade. While fighting continues across the region—including Israel’s heavy strikes on Lebanon and Iranian attacks on oil infrastructure in Kuwait, the UAE, Bahrain, and Saudi Arabia—experts warn that Iran’s emerging toll system on the Strait of Hormuz may have permanently altered the economics of global shipping.
The Strait of Hormuz, a narrow waterway between Iran and Oman/UAE, carries roughly one-fifth of the world’s oil supply and a significant share of global fertilizer inputs. Despite the ceasefire extension welcomed by the UN Secretary-General as “an important step toward de-escalation,” persistent tensions continue to throttle supply chains worldwide. Reports of vessels being fired upon or seized by both Iranian and U.S. Forces underscore the fragility of the truce, with maritime insurance costs surging and vessel traffic dropping sharply since late February.
Nearly 20,000 seafarers remain stranded amid the uncertainty, intensifying pressure on humanitarian operations and vulnerable communities far beyond the Gulf. The disruption is triggering what UN agencies describe as a widening humanitarian and economic shock, affecting trade routes and increasing costs for global businesses.
Iran’s strike on the Saudi East-West Pipeline—the primary route for bypassing the Strait of Hormuz—has further complicated efforts to restore normal transit. Analysts suggest Iran may have stumbled into the most lucrative chokepoint tax in modern history. At conservative estimates, transit fees charged for traversing the Strait could generate $40 billion to $50 billion annually for Iran, or roughly 10% to 15% of its pre-war GDP, all at near-zero operating cost. This revenue stream inverts Tehran’s incentives, making the toll system potentially more valuable than restoring free transit.
Economic assessments indicate that if the disruption stays within one quarter, the economic damage is painful but reversible. The Dallas Fed projects WTI oil at roughly $98 per barrel with a modest GDP hit in a short-closure scenario. Though, a catastrophic scenario—WTI above $132 with sustained negative growth—would require the war’s closure to drag past Q2. Every week the ceasefire holds improves the odds of avoiding the worst outcome, but the toll system’s emergence complicates even optimistic timelines.
The economic impact of this war differs from pre-globalization-era oil shocks of the 1970s. It is a shock to the extensive global supply chains that have emerged since then, affecting not just energy prices but also lead times, supply availability, shipping routes, and company revenues worldwide. Early assessments noted that while Gulf economies account for only 2% of global GDP, the war’s impact is amplified through interconnected supply networks.
As diplomatic efforts continue under the extended ceasefire, the international community faces a critical juncture. The temporary pause offers an opening for diplomacy and confidence-building, but without a lasting settlement, the risk of renewed escalation remains high. For now, businesses planning around a return to normal should instead plan around the idea that the war has narrowed, not ended—and that Iran’s control over one of the world’s most vital maritime chokepoints may endure long after the bombs stop falling.