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While Saudi Arabia can increase oil flows through its east-west pipeline to bypass the Strait of Hormuz, the ultimate constraint isn't the pipeline itself. The real bottleneck is the Port of Yanbu on the Red Sea, which has a fixed daily export capacity, limiting the effectiveness of the entire bypass strategy.
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Every 10 days the Strait of Hormuz is closed, a 200-million-barrel physical gap is created in the global oil flow. This is not a temporary kink but a massive hole in the supply chain that will take months to resolve and normalize, even long after transit resumes.
Even a best-case combination of all available workarounds—rerouting pipelines, sanctions relief, and the fastest-ever strategic reserve release—would only mitigate 7 million of the 20 million barrels per day lost from a Hormuz closure. This leaves a practically unsolvable 13 million barrel per day shortfall.
The 20 million barrels of oil flowing daily through the Strait of Hormuz represent 20% of global supply. A blockade constitutes a disruption four times larger than the Iranian Revolution or Yom Kippur War embargoes, with no simple replacement.
Despite government actions like tapping strategic reserves and using alternate pipelines, these measures can only offset about 9 million barrels per day of the 20 million lost from the Strait of Hormuz. This leaves a massive 11 million barrel per day shortfall, dwarfing previous supply shocks.
Major historical oil price movements were triggered by supply-demand imbalances of just 2-3 million barrels per day. A disruption at the Strait of Hormuz would impact 20 million barrels daily, a scale that dwarfs previous crises and renders standard analytical models inadequate.
While many fear production shutdowns, a more significant and probable risk is a logistical shock from shipping disruptions. Even modest delays in tanker transit times could effectively remove millions of barrels per day from the market, causing a significant price spike without a single well being shut down.
While options like releasing strategic reserves and tapping Saudi spare capacity exist, they are temporary stopgaps. These measures fall short of replacing the 20 million barrels per day—over 20% of global production—that flow through the Strait of Hormuz, making its security the paramount issue.
Even if global Strategic Petroleum Reserves (SPRs) were unlimited, their collective maximum release rate is far less than the 20 million barrels per day that flow through the Strait of Hormuz. This physical constraint means SPRs can only soften the blow, not solve the supply crisis, making early release critical.
The full impact of the Hormuz closure hasn't hit yet. An "air pocket" in global tanker supply is developing. When tankers that departed pre-conflict finally arrive at their destinations, Asian inventories will begin drawing down at an unprecedented 10-15 million barrels per day, triggering a severe, delayed price shock.
While global spare oil capacity exists as a buffer, it is heavily concentrated in Saudi Arabia, the UAE, and Kuwait. During a conflict, if the Strait of Hormuz is effectively closed, this capacity becomes physically trapped and cannot be deployed to global markets, nullifying its role as a price stabilizer.
