The Long Shadow of the Iran Shock: Hormuz and the New Geography of Energy Power

Foreign Affairs | Jason Bordoff and Meghan L. O’Sullivan

Iranian closure of the Strait of Hormuz in 2026 interrupted Gulf crude and Qatari liquefied natural gas exports, yet global energy markets experienced surprisingly muted price spikes due to flush inventories, bypass pipelines, coordinated International Energy Agency emergency stock releases, and reduced Chinese demand. While Brent crude benchmark prices peaked at $126 per barrel, delayed supply chain disruptions severely impacted refined fuel markets, placing acute fiscal strain on import-dependent European and Asian economies.

The United States leveraged record domestic production to operate as a net crude exporter, shielding its domestic market while maintaining structural strategic freedom. Conversely, Beijing asserted unprecedented leverage over global energy balances by drawing down its 1.4-billion-barrel inventory and curtailing domestic refinery exports. As emergency stockpiles deplete and Gulf bypass infrastructure reaches operational thresholds, a renewed maritime blockade threatens a substantially more destructive second phase defined by European natural gas deficits and global diesel shortfalls.

Comment

Overland bypass infrastructure such as Saudi Arabia's East-West Crude Oil Pipeline and the UAE's Habshan–Fujairah pipeline provides immediate strategic relief during maritime chokepoint blockades, but operational constraints cap its long-term substitution capacity. While these terrestrial conduits successfully diverted over five million barrels per day away from the Strait of Hormuz, their static terminal capacities create localised logistics bottlenecks at Red Sea and Gulf of Oman ports. High-viscosity heavy crudes require specialized pumping booster stations that restrict dynamic surge throughput beyond rated design limits.

Sustaining maximum flow rates across the Petroline network accelerates mechanical wear on turbine compressor stations, introducing structural vulnerabilities during prolonged maritime interdictions. Continuous operation at peak hydraulic limits leaves secondary distribution feeder lines vulnerable to operational disruptions and scheduled maintenance delays. Consequently, reliance on alternative overland routes transforms a maritime chokepoint vulnerability into a land-based sustainment friction along the Yanbu terminal corridor.

Strategic Question for Discussion

If a sustained Strait of Hormuz blockade forces the Petroline network to operate indefinitely at emergency hydraulic capacity, which logistical constraint breaks first — terminal loading throughput at Yanbu or compressor turbine maintenance cycles?

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