At the narrow throat of the Persian Gulf, where a fifth of the world's oil has long flowed in uneasy peace, the Strait of Hormuz has crossed into open conflict. Following Israeli and American airstrikes that killed Iran's supreme leader, Iranian military commanders have threatened to set transiting ships ablaze, and attacks on commercial vessels have already claimed one life and driven the world's largest shipping companies from the route entirely. What was once a geopolitical pressure point has become, in the span of days, a live battlefield — one whose closure would send economic tremors fro
Iran threatens to 'set ships on fire' as Hormuz traffic plummets amid regional conflict
One crew member killed in attack on Marshall Islands-flagged tanker MKD VYOM; four injured in separate tanker attack off Musandam; multiple crew evacuations reported.
We will not allow a single drop of oil to leave the region.
Mark
So the Strait of Hormuz is basically closed right now, even though Iran hasn't officially shut it down?
Mimi
Not officially closed, but functionally it's become too dangerous to use. The shipping companies have made the decision for themselves—they're not sending vessels through.
Luke
But we should be precise about what we know. We know 72 ships passed Sunday versus 116 on Saturday. That's a sharp drop, but it's not zero. And we know there have been attacks, but how many? The source lists maybe five or six incidents over a few days.
Mark
Is that a lot?
Mimi
In normal times, yes. Attacks on commercial shipping in the strait are rare. But in the context of an active war, with Iran's supreme leader just killed and Iran firing missiles back, the shipping companies are reading the situation as: this is going to get worse.
Luke
Right, but that's their judgment call, not a fact about what will happen. The threat from Jabbari is real—he said it. The attacks are real. But whether this becomes a sustained blockade or a temporary spike, we don't know yet.
Mark
What about the economic side? Is that locked in?
Mimi
The price spike is real—Brent hit $80 a barrel, up 8 percent in one day. But that's a market reaction to fear, not to actual scarcity yet. If the strait stays passable even at reduced capacity, prices might stabilize.
Luke
And we should note: India and China are the most exposed because of where they source their oil. But Europe gets its Middle Eastern oil too. The impact won't be uniform.
Mark
So we're in a waiting period.
Mimi
Yes. The military threat is explicit. The attacks have started. The shipping companies have voted with their vessels. Now it's a question of whether Iran escalates further, whether the U.S. and Israel respond, and whether this becomes a prolonged closure or a temporary disruption.
Luke
And we won't know that for days or weeks. The story right now is the threat and the immediate response. Everything else is projection.
Le Pouls
- An IRGC general's vow to 'set those ships on fire' is no longer rhetoric — tanker traffic through Hormuz has collapsed from 116 to 72 daily passages, with major crude carriers going dark entirely after Saturday night.
- Real attacks have already drawn blood: one crew member killed aboard the MKD VYOM off Muscat, four injured in a separate strike near Musandam, and fires reported on multiple vessels off the UAE and Bahrain coasts.
- The world's shipping giants — Maersk, MSC, NYK Line, CMA CGM, Cosco — have ordered their fleets to shelter, suspend bookings, or anchor in place, effectively abandoning the only sea corridor connecting Gulf oil to global markets.
- Brent crude surged more than 8 percent to a 52-week high of $80 a barrel on Monday, signaling that markets are already pricing in the possibility of a prolonged closure.
- India, which sources 85 percent of its crude through the strait, and China, which draws 40 to 50 percent of its oil from Gulf producers, face acute exposure — with analysts warning of currency pressure and supply disruption if the standoff holds.
- The strait remains technically open, but the combination of explicit military threats, active attacks, and mass commercial withdrawal marks a threshold unlike any previous episode of Iranian brinkmanship.
At the narrow throat of the Persian Gulf, where a fifth of the world's oil has long flowed in uneasy peace, the Strait of Hormuz has crossed into open conflict. Following Israeli and American airstrikes that killed Iran's supreme leader, Iranian military commanders have threatened to set transiting ships ablaze, and attacks on commercial vessels have already claimed one life and driven the world's largest shipping companies from the route entirely. What was once a geopolitical pressure point has become, in the span of days, a live battlefield — one whose closure would send economic tremors from Mumbai to Beijing and beyond.
The Strait of Hormuz — the narrow passage between Oman and Iran through which roughly one-fifth of the world's oil travels — has become a war zone. After Israeli and American airstrikes killed Ayatollah Ali Khamenei over the weekend, Iran responded with missile barrages targeting Israel, Gulf states, and American military installations. Into that escalation stepped Brigadier General Sardar Ebrahim Jabbari of the IRGC, who told Iranian media that any ship attempting passage would be set on fire, and that not a single drop of oil would be permitted to leave the region.
The threat arrived alongside real violence. A suspected projectile struck the Marshall Islands-flagged tanker MKD VYOM off the coast of Muscat, killing one crew member and triggering an explosion and fire. A second vessel north of Muscat was also hit and caught fire. All 20 crew members of a tanker struck off Musandam were evacuated, though four were injured. By Monday, attacks had spread to waters off Sharjah in the UAE and the Port of Bahrain, where a vessel was struck by two projectiles before its fire was extinguished and crew safely evacuated.
The commercial response was swift and sweeping. Daily tanker passages through the strait fell from 116 to 72 in a single day, with Lloyd's List reporting no traceable major crude tanker movements after Saturday night. Maersk suspended all new bookings to Upper Gulf markets. MSC ordered vessels to shelter in designated safe areas. Japan's NYK Line and Mitsui O.S.K. Lines halted all transits. CMA CGM and Cosco issued similar instructions to their fleets. The world's largest shipping companies, in effect, abandoned the only sea route connecting Gulf oil to global markets.
The economic stakes are without parallel at this chokepoint. India sources nearly 85 percent of its crude through the strait; analysts warn a prolonged closure would strain its balance of payments and weaken the rupee. China, the world's largest crude importer, draws 40 to 50 percent of its oil from Gulf producers, with no alternative sea route to East Asia — existing pipelines run westward, toward Europe. On Monday, Brent crude climbed more than 8 percent to a 52-week high of $80 a barrel.
Iran has threatened to close the strait before and never followed through. But this moment is different in kind: explicit military threats against commercial shipping, active attacks already underway, and the voluntary withdrawal of the world's major carriers. The strait remains technically open — but for now, it is empty.
The Strait of Hormuz, the narrow waterway between Oman and Iran through which roughly one-fifth of the world's oil flows, has become a war zone. On Monday, a senior Iranian military commander issued an explicit threat: any ship attempting passage would be targeted. "Anyone who wants to pass, our self-sacrificing heroes in the IRGC Navy and the Army will set those ships on fire," Brigadier General Sardar Ebrahim Jabbari told Iranian media. He added a broader warning: "Don't come to this region. We will not allow a single drop of oil to leave the region."
The threat came as the strait descended into active conflict. Over the weekend, Israel and the United States launched air strikes on Iran that killed the country's supreme leader, Ayatollah Ali Khamenei. Iran responded with barrages of missiles targeting Israel, Gulf countries, and American military bases across the region. The Joint Maritime Information Center, which monitors shipping security, raised the threat level in the waterway to critical following multiple attacks on commercial vessels.
The impact on global shipping has been immediate and severe. On Sunday, only 72 major tankers passed through the strait—down from 116 the day before. Lloyd's List, a maritime intelligence firm, reported that no traceable passages by major crude tankers occurred after Saturday night. The world's largest shipping companies have begun abandoning the route entirely. Maersk, the Danish container giant, suspended all new bookings between the Indian subcontinent and the Upper Gulf markets, including the UAE, Bahrain, Qatar, Iraq, Kuwait, and Saudi Arabia. MSC, the world's biggest container shipping company, instructed its vessels to shelter in designated safe areas rather than transit the strait. Japan's NYK Line and Mitsui O.S.K. Lines, among the world's largest ship operators, halted all transits. CMA CGM, the French shipping group, ordered its vessels to take shelter. Cosco, the Chinese liner giant, advised crews to complete operations only where safe and to anchor as soon as possible.
The decision to withdraw reflects real attacks already underway. On Sunday, an oil tanker was struck off the coast of Musandam, Oman. All 20 crew members were evacuated, though four were injured. The Marshall Islands-flagged product tanker MKD VYOM was hit by a suspected projectile off the coast of Muscat, killing one crew member. The vessel suffered an explosion and fire. A second ship north of Muscat was struck by an unknown projectile, also catching fire. On Monday, two more attacks were reported—one off the coast of Sharjah in the UAE, where an unknown projectile exploded near a vessel with no casualties reported, and another off the Port of Bahrain, where a vessel was struck by two projectiles, causing a fire that was later extinguished. All crew members were safely evacuated.
The economic consequences ripple outward from this single chokepoint. The Strait of Hormuz has no alternative. In 2024, approximately 20% of the world's petroleum liquid shipments passed through it. India imports nearly 85 percent of its crude oil, much of it through the strait. A senior analyst at Rystad Energy told CNBC that rising oil prices from a prolonged closure would pressure India's balance of payments and weigh on the rupee. China, the world's largest crude importer, sources 40 to 50 percent of its oil from major Middle Eastern producers—Iran, Saudi Arabia, Iraq, the UAE, and Kuwait. Nearly all of that crude flows through the Strait of Hormuz, as no alternative sea route connects the Gulf to East Asia. Existing Gulf pipelines run westward toward Europe, not eastward toward Asian markets. On Monday, Brent crude reached a 52-week high, at one point climbing more than 8 percent to $80 a barrel.
Iran has never officially closed the waterway, though its officials have repeatedly threatened to do so. The current escalation represents a new threshold: explicit military threats against commercial shipping, coupled with active attacks, coupled with the withdrawal of the world's major shipping companies. What happens next depends on whether the military threats materialize into sustained attacks, whether Iran follows through on closure, and whether the conflict between Iran, Israel, and the United States continues to escalate. For now, the strait remains technically open—but empty.
Citations marquantes
Anyone who wants to pass, our self-sacrificing heroes in the IRGC Navy and the Army will set those ships on fire. Don't come to this region. We will not allow a single drop of oil to leave the region.— Brigadier General Sardar Ebrahim Jabbari, Iranian Islamic Revolutionary Guards official
The safety of our crews, vessels and customers' cargo remains our key priority.— Maersk, in statement announcing suspension of routes through the Strait of Hormuz
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