How a Blocked Strait of Hormuz Is Rewiring Global Oil Flows

The numbers that sound like recovery

Thirteen million barrels a day are leaving the Persian Gulf right now. That is about 72 per cent of what flowed before the US and Israel declared war on Iran in February. On its face, that is a rebound. But the detail that matters is where the oil is actually moving.

Crude flowing through the Strait of Hormuz — the narrow passage that for decades carried roughly 21 million barrels daily, a quarter of global oil trade — is averaging just 7.3 million. Slightly under half its pre-war pace. The rest is finding another way out.

This is not a temporary disruption. The infrastructure is being built in real time, and it will outlast whatever deal emerges between Washington and Tehran.

The blockade that is doing double duty

US officials told The New York Post that Iran is “exhausted” — running out of supplies, water, feedstock, food. The rial has cratered to 2.45 million against the dollar, up from 42,000 a year ago. That is not inflation. That is economic disintegration.

Treasury Secretary Scott Bessent called it “Operation Economic Outcast” on X. The strategy, as one official put it, is almost anaconda-like: squeeze every time Iran breathes.

But the blockade is also achieving something unexpected for the global market. US officials say oil flow out of the Gulf is increasing precisely because American naval protection has restored confidence in the waterway. Ships are sailing under US escorts. Ship-to-ship transfers are happening along the Gulf of Oman. The Persian Gulf is exporting more oil in September than any other month of the war.

Energy Secretary Chris Wright claimed one day last week saw over 20 million barrels flow through the Strait — above pre-conflict levels. Whether that held is less important than the signal: Washington is positioning itself as the guarantor of Gulf energy flows, not just the enforcer of a blockade.

That is a geopolitical shift. The US went from being a marginal player in Middle Eastern energy to becoming the indispensable security provider for the world’s most critical oil chokepoint. The negotiating leverage that comes with that role is what Trump officials are now cashing in — reportedly offering sanctions relief and frozen asset releases in exchange for a concrete nuclear agreement.

The corridors that are replacing Hormuz

The Strait of Hormuz handled 17 ship transits daily on average during the war. That is barely enough. So alternatives are accelerating.

The UAE’s Fujairah pipeline is the clearest example. It runs from the Emirati side of the Persian Gulf, across the Hajar Mountains, to the Gulf of Oman port of Fujairah — completely bypassing the Strait. During peacetime, it moved roughly 1.5 million barrels daily. Now it is running harder, and other Gulf states are looking at similar bypass projects.

Ship-to-ship transfers in the Gulf of Oman have become routine. Tankers load from smaller vessels that slip through the strait under US protection, then transfer cargo offshore to larger tankers heading for global markets. It is slower. It is riskier. But it is working — and it creates a new kind of maritime logistics layer that did not exist before the war.

Saudi Arabia has talked for years about its East-West pipeline from the Ghawar field to the Red Sea port of Yanbu. That project has stalled repeatedly on economics and security. The current war may finally make it viable — or at least revive the conversation with real urgency.

Qatar’s LNG exports, mostly destined for Asia, are also finding alternate routing. The country has been expanding its LNG capacity for years. War or no war, those molecules need to get somewhere. The Strait was always the bottleneck. Now it is a confirmed bottleneck, and buyers in Japan, South Korea, and China are recalculating supply risk in real time.

Who wins and who loses

The winners are the infrastructures that can move oil without touching the Strait. The UAE already has Fujairah. Saudi has Yanbu on the drawing board. Oman has Duqm, a deepwater port that could serve as another alternative — though it is farther south and requires more transit time.

The losers are clear. Iran is the obvious one. But so are the countries that assumed Hormuz would remain the permanent artery of global energy trade. Every major oil company with exposure to Gulf supplies has had to rebuild its risk models. The insurance premiums for ships transiting the Strait are still elevated. The market is pricing in the possibility that this disruption is structural, not cyclical.

The US is the strategic winner — at least in the short term. It controls the blockade. It provides the naval protection. It sits at the negotiating table with leverage that comes from knowing Iran has nowhere to turn. But controlling a chokepoint is different from controlling the outcome. If Iran’s hardliners decide that national survival requires exiting the Nuclear Non-Proliferation Treaty — as some are now calling for — the leverage evaporates. A nuclear Iran changes everything about the equation.

What happens next

Iran’s Islamic Revolutionary Guard Corps continues to threaten escalation. Iranian media claimed last weekend that its military struck 19 ships in the Strait. No attack has been independently confirmed since Wednesday. The IRGC’s armed forces spokesman, Abolfazl Shekarchi, warned that the US would be “hit” if it continues to intervene.

Eight US Marines were injured when a cruise missile hit their ship in the waterway. Twenty-two seafarers have been killed in 79 confirmed attacks since the war began, according to the International Maritime Organization. The human cost is real even as the oil keeps flowing.

The most likely scenario is not a sudden de-escalation but a grinding adaptation. The Strait will remain dangerous. The bypass corridors will keep growing. Gulf producers will find ways around Iranian threats. And the US will keep using energy flow as both shield and sword — protecting the tankers that serve its allies while starving the regime that threatens them.

What is less certain is how long Iran can sustain the pressure. The US official’s description of an anaconda seems accurate: squeeze every time the regime breathes. But constrictors can also lose their grip. If Iran decides the cost of submission is higher than the cost of escalation — and the hardliners are moving in that direction — the entire calculation changes.

For now, 13 million barrels are leaving the Gulf each day. Most of the rest is finding another route. The map of global energy trade is being redrawn — not by geopolitics alone, but by pipelines, transfers, and ports that exist because a single strait proved too vulnerable.