A critical global shipping lane remains paralysed — not by enemy fire, but by Iran’s own miscalculation. Weeks after mining the Strait of Hormuz, Tehran now cannot fully reopen it, having lost track of the explosives it scattered in haste.

The result is a dangerous stalemate at one of the world’s most vital shipping corridors, with ceasefire diplomacy now colliding with maritime reality.

Mines Laid in Panic, Now Impossible to Track

The mines were deployed using small boats following joint US-Israeli strikes on Iranian targets. But officials say the operation was rushed — and poorly documented.

Some devices were designed to drift. Others were reportedly placed “haphazardly”, leaving Iranian forces unable to map or safely remove them. The warning is blunt: vessels risk striking live mines in a waterway carrying roughly a fifth of global oil.

Ceasefire Meets Hard Reality at Sea

Tehran has pledged to reopen Hormuz under pressure from Donald Trump, who demanded swift action as part of a fragile ceasefire. But the physics of the problem is unforgiving.

Instead of full access, Iran is now directing ships onto alternative routes through the strait — a tacit admission it cannot secure the main channel. The bottleneck remains, and so does the risk.

Global Markets Hold Their Breath

The implications stretch far beyond the Strait. Energy markets are on edge as tankers slow, reroute, or halt altogether.

Major importers face immediate exposure. For countries heavily reliant on Gulf oil flows, disruption here is not theoretical — it is an economic shock already rippling through supply chains.

Pressure Builds in Islamabad Talks

The crisis lands at the worst possible moment. US-Iran negotiations in Islamabad hinge on de-escalation and stability — both undermined by a mined shipping lane that Tehran cannot control.

For Washington, it reinforces doubts over Iranian credibility. For Iran, it is a self-inflicted constraint weakening its hand at the table.

A Strategic Misstep With Lasting Consequences

What was intended as leverage has become liability. By weaponising Hormuz, Iran has trapped itself between military posture and economic necessity.

Until the mines are cleared — literally — the world’s most critical chokepoint remains hostage to a miscalculation that neither side can quickly fix.

Iran Has A Hormuz Problem: It Cannot Locate Mines Planted To Block Route, Iran War, Strait of Hormuz

I wonder if the best option might be to close the straight which the USA can easily do. Already 12 million of the 20 million barrels are being diverted. In a years time, other countries will increase production and the gap could be almost a non-issue. The world at this time is not short on oil reserves.

Iran with zero oil shipments wouldn't make it a year before waving the white flag. Not sure about that but seems very likely.

Probably a crazy idea but maybe not?

16 minutes ago, atpeace said:

Already 12 million of the 20 million barrels are being diverted.

Where to and how?

Please provide a source!

23 minutes ago, atpeace said:

Probably a crazy idea

Correct!

There is a hell of a lot more products than just crude oil that are required to be shipped through the Straights!

16 minutes ago, scottiejohn said:

Where to and how?

Please provide a source!

You go find those sources :)

Here is what AI states:

Global Oil Supply Comparison

• Pre-War Supply (Early 2026): Approximately 106.6 mb/d.

• Current Supply (April 2026): Approximately 98.6

Not great but hardly something that can't be overcome. Of the 20 million barrels lost the world has found a way to ship 12,000 million of those barrels. In a years time that gap will be tiny. Saudi alone has diverted an extra 5 million through pipelines.

21 minutes ago, scottiejohn said:

Correct!

There is a hell of a lot more products than just crude oil that are required to be shipped through the Straights!

Yep - now you are moving on from doubting my original post regarding oil because you used AI and it told you what I stated was correct.

6 minutes ago, atpeace said:

Yep - now you are moving on from doubting my original post regarding oil because you used AI and it told you what I stated was correct.

Ships that pass through the straits takes and are too big to go through the Suez take about a month to get to Europe. So, only now are those ships cut off by the war not showing up.

30 minutes ago, bunnydrops said:

Ships that pass through the straits takes and are too big to go through the Suez take about a month to get to Europe. So, only now are those ships cut off by the war not showing up.

Pipelines and other suppliers. Saudi is just one country and it redirected 5 million barrels through pipelines. What I've learned over the last 50 years is that it rarely as bad as the media makes it sound. Fox news does it all the time and so does CNN. Can't blame them - it is their job to create fear and a larger audience.

Every Navy has "Mine Sweeper Vessels".

The mine sweepers clear a safe "corridor", followed by a convoy of oil tankers. Technically possible, the Brits did it during WW2. Granted that the Iranians don't shoot at the mine sweepers.

1 hour ago, atpeace said:

Yep - now you are moving on from doubting my original post regarding oil because you used AI and it told you what I stated was correct.

What a load of codswallop!

1 hour ago, atpeace said:

You go find those sources :)

Here is what AI states:

Global Oil Supply Comparison

• Pre-War Supply (Early 2026): Approximately 106.6 mb/d.

• Current Supply (April 2026): Approximately 98.6

Not great but hardly something that can't be overcome. Of the 20 million barrels lost the world has found a way to ship 12,000 million of those barrels. In a years time that gap will be tiny. Saudi alone has diverted an extra 5 million through pipelines.

Those figures(!) do not back up your original post!

5 minutes ago, swissie said:

Every Navy has "Mine Sweeper Vessels".

Absolute B.S!

Only 26 countries out of the 51 countries in the world who have minesweepers have 5 or more minesweepers. Very few of them are even actually active/effective!

Mine Warfare Fleet Strength by Country (2026)

13 minutes ago, swissie said:

Every Navy has "Mine Sweeper Vessels".

The mine sweepers clear a safe "corridor", followed by a convoy of oil tankers. Technically possible, the Brits did it during WW2. Granted that the Iranians don't shoot at the mine sweepers.

Do you have any concept of the difference between a "Minesweeper" and a "Minehunter"?

The original story is not quite correct. The Iranians know where they didn't lay mines. Iran’s National Security Commission issued a map showing the danger area, so safe to assume thats where they were sending small boats to lay mines. I imagine Navy hydrography teams are using this information, plus dates of likely mine laying to risk rate different parts. The Royal Navy has patroled these waters for 43 years, and likely have a good understand of the currents and tides, and can model movements of mines.

From Iran's own map, its easy to see that waters closer to Iran are likely more heavily mined than waters closer to Iran. That stands to reason if they were using small boats to lay mines, simply because of their fuel range and the need to avoid discovery.. So the shipping channel for inward shipping (the channel closer to Iran) is higher risk than the channel for outward shipping (the channel closest to Oman).

Minesweepers need a permissive environment; they are not navy ships that can really defend themselves. Because they are minehunters, then they are not armoured, using composite, non-magnetic mines. Autonomous vessals reduce crew risk, but even so, they will need mother ships to support them, outside the area of contention. In Royal Navy parlance, these RFAs are lightly armed.

They are less likely to go into these areas unless there is air cover. Other Naval vessals cannot enter the area for obvious reasons. So maritime aerial recce assets are needed to provide continuous eyes in the sky, support from armed aircraft if so needed.

The talks to reopen the Straits should contain three elements.

1. Agreement to restore the normal shipping channels, rather than the current Larek Island routing.

2. Agree timelines to clear the mined area, likely through agreed neutral assets. The contentious thing will be, outside of the US Navy, which now has no effective minehunting capability, only the RN and Pakistani Navy have experience of these waters for minesweeping. Iran will need to provide information about the numbers and types of mines that were deployed.

3. Agree interim arangements for the current Larek Island routing. There may need to be an acceptance of the Iranian charges. Current regulations allow coastal states to collect fees from shipping to cover regulatory and environment costs. The Iranians can dress these fees up as a charge, but cannot call them a toll.

I hope Vance has appreciation that there are a lot of moving parts. Its not as simle as "open the straits"/

7 minutes ago, scottiejohn said:

Absolute B.S!

Only 26 countries out of the 51 countries in the world who have minesweepers have 5 or more minesweepers. Very few of them are even actually active/effective!

Mine Warfare Fleet Strength by Country (2026)

Of course, most countries are "landlocked". Why should they have a Navy in the first place?

How many mine sweepers does the US have, for example? If they don't have them, I am confident that the "defense industry" will fill the gap quickly. (A new "niche" product for the defense industry).

11 minutes ago, scottiejohn said:

Do you have any concept of the difference between a "Minesweeper" and a "Minehunter"?

I don't know. But I assume they serve the same purpose.

17 minutes ago, swissie said:

Every Navy has "Mine Sweeper Vessels".

The mine sweepers clear a safe "corridor", followed by a convoy of oil tankers. Technically possible, the Brits did it during WW2. Granted that the Iranians don't shoot at the mine sweepers.

The US Navy scrapped theirs back in September. The last Avengers left the Gulf in September, and have arrived in Philadelphia for scrapping.

What the Americans have replaced these with is modified Littoral Combat Ships, nicknamed the Little Crappy Ships by their crews. These ships cannot operate in a mined area, because they have magnetic hulls. These are given a mine hunting capability through a modular package that includes the Knifefish autonomous underwater vehicle for detection, the A/AQS-20C sonar array, and the Unmanned Influence Sweep System.

These LCS vessals have had a lot of problems, the biggest being that their hulls have a habit of developing cracks, which get worse if there are waves or the ships go more than 5 knots. The MCM package was only deployed in 2025. The sensors in the MCM set up don't work in turbid or shallw waters (aka the Persian Gulf), need line of sight (ie, if there is a chop, they will lose comms), pre-mission setup takes 6 hours.

Over the last 40-50 years, the US has gradually degraded its minehunting capabiity, and within NATO, that capability is more taken on by other NAvys, such as the British and French navies, because European waters are still riddled with mines from 2 world wars.

Currently, the UK has one minehunter protecting Faslane. The others are in for extensive refits or are being used for spares. The Admiralty has judged them not seaworthy after 40+ years continuous service in the Gulf.

Despite the many years depending on American and British minesweepers to essentially support their billionaire life styles, not a single navy in the Persian Gulf has invested in minesweepers.

The UK has been running sea trials in the Gulf of the Harrier autonomous minesweepers; there are about 7-8 of these in the fleet.

Minehunting in the Gulf is complicated by the currents and tides that were never seen in the North Sea. Essentially, a minesweep can clear a path, but the cleared area can become recontaminated with other mines. Basically the area has be surveyed again and again, until enough mines are accounted for of the inventory deployed by Iran so that the risk becomes acceptable (ie. they won't find every mine).

19 minutes ago, Roadsternut said:

The original story is not quite correct. The Iranians know where they didn't lay mines. Iran’s National Security Commission issued a map showing the danger area, so safe to assume thats where they were sending small boats to lay mines. I imagine Navy hydrography teams are using this information, plus dates of likely mine laying to risk rate different parts. The Royal Navy has patroled these waters for 43 years, and likely have a good understand of the currents and tides, and can model movements of mines.

From Iran's own map, its easy to see that waters closer to Iran are likely more heavily mined than waters closer to Iran. That stands to reason if they were using small boats to lay mines, simply because of their fuel range and the need to avoid discovery.. So the shipping channel for inward shipping (the channel closer to Iran) is higher risk than the channel for outward shipping (the channel closest to Iran.

Minesweepers need a permissive environment; they are not navy ships that can really defend themselves. Because they are minehunters, then they are not armoured, using composite, non-magnetic mines. Autonomous vessals reduce crew risk, but even so, they will need mother ships to support them, outside the area of contention. In Royal Navy parlance, these RFAs are lightly armed.

They are less likely to go into these areas unless there is air cover. Other Naval vessals cannot enter the area for obvious reasons. So maritime aerial recce assets are needed to provide continuous eyes in the sky, support from armed aircraft if so needed.

The talks to reopen the Straits should contain three elements.

1. Agreement to restore the normal shipping channels, rather than the current Larek Island routing.

2. Agree timelines to clear the mined area, likely through agreed neutral assets. The contentious thing will be, outside of the US Navy, which now has no effective minehunting capability, only the RN and Pakistani Navy have experience of these waters for minesweeping. Iran will need to provide information about the numbers and types of mines that were deployed.

3. Agree interim arangements for the current Larek Island routing. There may need to be an acceptance of the Iranian charges. Current regulations allow coastal states to collect fees from shipping to cover regulatory and environment costs. The Iranians can dress these fees up as a charge, but cannot call them a toll.

I hope Vance has appreciation that there are a lot of moving parts. Its not as simle as "open the straits"/

Roadsternut, I think in your second paragraph you meant to say the waters closer to Oman in your second and fourth lines when comparing to Iran waters.

13 minutes ago, swissie said:

Of course, most countries are "landlocked". Why should they have a Navy in the first place?

How many mine sweepers does the US have, for example? If they don't have them, I am confident that the "defense industry" will fill the gap quickly. (A new "niche" product for the defense industry).

The US Navy currently has zero minesweepers. What they have are bodged LCSs which have magnetic hulls and a towed minehunting package that was was first used in 2025, only to be found to be completely useless in the Persian Gulf.

https://www.fpri.org/article/2026/03/the-mine-gap-america-forgot-how-to-sweep-the-sea/

And of the two LCSs they had in the Gulf, they have hurridly redeployed one to Malaysia.

18 minutes ago, Roadsternut said:

The original story is not quite correct. The Iranians know where they didn't lay mines. Iran’s National Security Commission issued a map showing the danger area, so safe to assume thats where they were sending small boats to lay mines. I imagine Navy hydrography teams are using this information, plus dates of likely mine laying to risk rate different parts. The Royal Navy has patroled these waters for 43 years, and likely have a good understand of the currents and tides, and can model movements of mines.

From Iran's own map, its easy to see that waters closer to Iran are likely more heavily mined than waters closer to Iran. That stands to reason if they were using small boats to lay mines, simply because of their fuel range and the need to avoid discovery.. So the shipping channel for inward shipping (the channel closer to Iran) is higher risk than the channel for outward shipping (the channel closest to Iran.

Minesweepers need a permissive environment; they are not navy ships that can really defend themselves. Because they are minehunters, then they are not armoured, using composite, non-magnetic mines. Autonomous vessals reduce crew risk, but even so, they will need mother ships to support them, outside the area of contention. In Royal Navy parlance, these RFAs are lightly armed.

They are less likely to go into these areas unless there is air cover. Other Naval vessals cannot enter the area for obvious reasons. So maritime aerial recce assets are needed to provide continuous eyes in the sky, support from armed aircraft if so needed.

The talks to reopen the Straits should contain three elements.

1. Agreement to restore the normal shipping channels, rather than the current Larek Island routing.

2. Agree timelines to clear the mined area, likely through agreed neutral assets. The contentious thing will be, outside of the US Navy, which now has no effective minehunting capability, only the RN and Pakistani Navy have experience of these waters for minesweeping. Iran will need to provide information about the numbers and types of mines that were deployed.

3. Agree interim arangements for the current Larek Island routing. There may need to be an acceptance of the Iranian charges. Current regulations allow coastal states to collect fees from shipping to cover regulatory and environment costs. The Iranians can dress these fees up as a charge, but cannot call them a toll.

I hope Vance has appreciation that there are a lot of moving parts. Its not as simle as "open the straits"/

Very instructive and sobering at the same time.

Appearantly the most powerful military nation of this earth has no remedy to "clean-up" mine infested waters. Terrorist organisations may claim to have "mined" the Hudson River. Bringing NYC to a standstill.

34 minutes ago, scottiejohn said:

Those figures(!) do not back up your original post!

I said that 12 million of the barrels have been recovered which match my post OP perfectly. Do the math :) The world is producing 8 million barrels less today then pre war. This is exactly what I stated.

Calm down dude. This is a discussion and you don't have to get bent - chill. It is weird how people get so angry when questioned...

5 minutes ago, bannork said:

Roadsternut, I think in your second paragraph you meant to say the waters closer to Oman in your second and fourth lines when comparing to Iran waters.

You should have reported the post to the mods for inaccuracy, asking it to be deleted. I would have. Or not said anything because who <deleted> cares what I post.

2 minutes ago, swissie said:

Very instructive and sobering at the same time.

Appearantly the most powerful military nation of this earth has no remedy to "clean-up" mine infested waters. Terrorist organisations may claim to have "mined" the Hudson River. Bringing NYC to a standstill.

The remedy is to work with your NATO allies, and not bitch and whine all the time.

The various Navies, irrespective of their buffoon political masters, will be talking to each other, brushing off contingency plans. Thats what they have been doing for over 80 years.

3 minutes ago, Roadsternut said:

You should have reported the post to the mods for inaccuracy, asking it to be deleted. I would have. Or not said anything because who <deleted> cares what I post.

Some of us DO care what you post.

The U.S. can’t get Iran to open the straights of Hormuz while Israel continues its attacks on Lebanon.

Blaming the problem on ‘lost mines’ might not be what it purports to be.

40 minutes ago, swissie said:

I don't know. But I assume they serve the same purpose.

Look up the words "hunting" and "sweeping" and you might just get a clue regarding the difference!

Since you admit you do not know the difference I suggest you stop making ill-informed comments on "Mine Clearing" operations!

45 minutes ago, swissie said:

Of course, most countries are "landlocked". Why should they have a Navy in the first place?

How many mine sweepers does the US have, for example? If they don't have them, I am confident that the "defense industry" will fill the gap quickly. (A new "niche" product for the defense industry).

I suggest that you read the many posts below the first one you quoted and follow the links embedded!

You obviously have no clue as to how mine warfare works!

12 minutes ago, scottiejohn said:

Look up the words "hunting" and "sweeping" and you might just get a clue regarding the difference!

Since you admit you do not know the difference I suggest you stop making ill-informed comments on "Mine Clearing" operations!

AFAIK there are a few ways to detect "water mines".

a) visually

b) metal tetektorism (magnetism in the broader sense).

c) accustic underwater detection (ping ping ping).

d) a fishing vessel, draging the net 1 mile behind, reaching the shore, blowing up the "perpetraitor". Paying the fisherman a premium of 1000 Dollars per explosion. The fishermen getting rich.

e) consulting a 90 year old Romainian gypsy-lady.

2 minutes ago, swissie said:

AFAIK there are a few ways to detect "water mines".

a) visually

b) metal tetektorism (magnetism in the broader sense).

c) accustic underwater detection (ping ping ping).

d) a fishing vessel, draging the net 1 mile behind, reaching the shore, blowing up the "perpetraitor". Paying the fisherman a premium of 1000 Dollars per explosion. The fishermen getting rich.

e) consulting a 90 year old Romainian gypsy-lady.

I repeat what I posted earlier;

"Since you admit you do not know the difference I suggest you stop making ill-informed comments on "Mine Clearing" operations!"

As you have just proved again you have a total lack of knowledge on this highly technical subject!

Probably best that you drop out of this topic!

I don't know if Iran has them, but some mines are quite sophisticated. They lie on the bottom and can measure the ship's length and weight above them to target specific ships. They explode with a powerful shockwave, breaking the ship's keel. I would imagine that they would have to be hunted.

The US Navy ship that entered turned on its transponder after it had already entered, so no one knows what route it took. It could have just hugged the Oman coast.