Iran-US Crisis — 2026-04-18
Brent slides below $91 then reverses as Hormuz reopening triggers oil-price whipsaw
Brent crude fell below $91 on Friday after Iran briefly declared the
Analysis
Friday's slide priced in a durable reopening; the Saturday reclosure has invalidated that premise without yet registering in futures curves. With strait gunfire persisting through the Monday London open, Brent very likely retests and breaches $100 within 72 hours; the mechanical link between tanker rerouting premiums and the 20 percent of seaborne crude transiting Hormuz leaves little slack, though confidence is moderate: freight rate proxies and options skew, the true leading indicators, were still catching up at Friday's close. The IEA's April report, already naming supply-side disruption the single largest 2026 balance risk, converts from scenario to base case. Joint OECD SPR coordination within 48 hours is the strongest cap mechanism and would hold Brent below $95, but its absence through Monday would itself confirm the bull move.
Friday's slide priced in a durable reopening; the Saturday reclosure has invalidated that premise without yet registering in futures curves. With strait gunfire persisting through the Monday London open, Brent very likely retests and breaches $100 within 72 hours; the mechanical link between tanker rerouting premiums and the 20 percent of seaborne crude transiting Hormuz leaves little slack, though confidence is moderate: freight rate proxies and options skew, the true leading indicators, were still catching up at Friday's close. The IEA's April report, already naming supply-side disruption the single largest 2026 balance risk, converts from scenario to base case. Joint OECD SPR coordination within 48 hours is the strongest cap mechanism and would hold Brent below $95, but its absence through Monday would itself confirm the bull move.