How the Strait of Hormuz shutdown is disrupting dry bulk, LNG freight and trade compliance

The US-Iran conflict has put the Strait of Hormuz at a standstill. While crude oil dominates the headlines, the disruption runs far deeper. We break down what dry bulk, LNG freight, and risk and compliance professionals need to know right now. At Kpler, we are tracking vessel and cargo flows in real time to quantify these disruptions.

Key takeaways

• Dry bulk transits through the Strait are down 91%, with roughly 280 bulkers trapped in the region
• The Middle East Gulf accounts for 16-18% of global seaborne fertiliser exports
• Qatar's Ras Laffan is offline, and Spark 30 Atlantic Basin rates jumped $100,000/day in a single session
• The Mideast Gulf supplies approximately 20% of global seaborne LNG
• Over 10 confirmed GNSS interference incidents have occurred since February 27
• The Strait closure functions as commercial deterrence rather than outright military blockade
• New sanctions packages are unlikely during active operations but expect rollout following any ceasefire

Overview: the Strait of Hormuz is not just an oil problem

Every time the Strait of Hormuz enters the headlines, the conversation defaults to crude. Tanker rates, VLCC positioning, oil supply disruption - that framing is understandable. Roughly 16 to 18 million barrels per day of crude flow through that corridor.

But if you sit in dry bulk, LNG freight, or risk and compliance, resist the temptation to treat this as someone else's problem. It isn't.

The closure of the Strait - or more precisely, the commercial deterrence of it - creates cascading disruptions that will take weeks, possibly months, to work through. In some commodity segments, the damage is already done.

Impact on dry bulk: the headline numbers don't tell the full picture

Transit collapse and vessel entrapment

Transits for dry bulk carriers are down 91%. Around 280 bulkers are currently trapped within the Mideast Gulf, predominantly smaller vessel classes:

• Panamaxes
• Supramaxes
• Handysizes

The cape-sized segment does not trade heavily through this region.

Why benchmark indices lag reality

The benchmark dry bulk earnings indices - covering Capes, Panamaxes, Supramaxes, and Handysizes - have not shown a dramatic spike. This is partly a function of how those indexes are constructed. There is no significant Mideast Gulf component built into them.

That is not a signal the market is unaffected. It is a signal the pain has not been fully priced in yet.

Fertilisers and food: the real exposure

Fertilisers: The Middle East Gulf accounts for 16-18% of global seaborne fertiliser exports, primarily sulphur and urea. Saudi Arabia ships close to 14 million tonnes from its eastern ports alone. The UAE and Qatar add further volumes.

Much of this output links directly to refinery and gas plant production - and those plants are shutting down. Qatar and Kuwait have already seen curtailments.

Sulphur is not just a farming input. It is a base product used in sulphuric acid manufacturing and wider industrial chemical processes.

Short-term, the world has stocks. Northern Hemisphere farmers have already sourced their inputs for this planting season. Weeks of disruption, not days, changes that calculus entirely.

Grains: the region imports 25 to 30 million tonnes of grains and oilseeds per year by sea. Iran alone was taking in approximately 14 million tonnes of corn annually, much of it from South America. That trade has stopped.

For bulk carriers operating these routes, vessel supply is compressing quietly. Ships are tied up or rerouting. Voyages are longer. When inefficiencies accumulate in a tight market, earnings move - not in a single spike, but in a sustained grind upward.

Containers and fresh produce: an underreported risk

Jebel Ali handles approximately 15,500 TEU per year, roughly double the next largest port in the region. It serves as the supply lifeline for around 50 million people.

There is no overland or air freight alternative that absorbs that volume. Unlike grain, which can be stored in silos for months, fresh produce cannot wait. If container vessel transits remain suspended, this escalates quickly.

The Black Sea parallel

The Black Sea offers the closest comparison. When vessels got stuck in Ukrainian ports:

• Crews left
• Restarting operations proved far more complex than anticipated
• Recrewing, engine recommissioning, and cargo condition assessments compounded delays
• Certain commodities were prioritised
• Operators switched to older and smaller vessels
• Inspected export corridors proved deeply inefficient

The longer the disruption runs, the more expensive and difficult the restart becomes. There is no clean exit from this kind of situation - and the Black Sea has still not returned to normal trade.

LNG freight dynamics: a structural disruption, not a seasonal spike

Record-breaking rate movements

Spark 30, the Atlantic Basin LNG freight benchmark, jumped $100,000 per day in a single session. That is the single largest one-day increase on record.

To understand why that matters, you need to understand the structural position of the LNG carrier market.

Supply shock fundamentals

The JKM-TTF spread effect

JKM (Japan Korea Marker) represents Asian LNG spot prices. TTF (Title Transfer Facility) represents the European benchmark gas price. The spread between them determines where global LNG cargoes flow.

Middle East LNG flows predominantly serve Asia. With Asian buyers now acutely short of supply, they are pulling aggressively from the Atlantic and from US export terminals - directly competing with European buyers for the same pool of carriers.

The LNG carrier market is structurally imbalanced at the best of times. When the JKM-TTF spread flips to favour Asia - as it is doing now, and sharply - the market moves to fundamental undersupply. Rates have much further to run if those Qatari cargoes remain inaccessible.

This is not seasonal

This is not a winter spike driven by seasonal heating demand. It is a supply disruption hitting a market where Asia is drawing hard.

Secondary effects on bunker supply

Approximately 35% of Singapore HSFO comes from the Mideast Gulf. With those flows disrupted, bunker prices at major Asian hubs are rising sharply. This compounds voyage economics across all vessel types.

Risk and compliance: reading the signal through the noise

Separating fact from speculation

There is a lot of noise in the market right now:

• Claims about coordinated deceptive vessel behaviour
• Speculation around dark fleet activity
• Concerns about AIS manipulation

Most of it requires significant qualification.

Understanding GNSS and AIS disruption

GNSS (Global Navigation Satellite System) is the umbrella term for satellite positioning systems. GPS is the most widely known. It tells a vessel exactly where it is. AIS (Automatic Identification System) is a broadcast system that takes that position data and transmits it so everyone else can see the vessel.

Since February 27, more than 10 confirmed GNSS interference incidents have been logged across both the Persian Gulf and the Gulf of Oman. The disruption is sustained and geographically dispersed, concentrated particularly around the Strait of Hormuz.

When GNSS is disrupted through jamming or spoofing, AIS data appears distorted as a direct consequence. What looks like evasive behaviour is, in the majority of cases for commercial vessels, simply data loss.

Kpler's integrated vessel and satellite intelligence helps distinguish GNSS-induced data loss from deliberate evasive behaviour, improving situational awareness for compliance teams.

The parking lot reality

Most vessels are stopped. The Strait has been accurately described as a parking lot, and the data supports that.

At its narrowest point, the Strait is just 21 nautical miles wide. When operating in a corridor that tight, even short-term signal disruptions increase collision risk, grounding risk, and overall navigational uncertainty.

Threat environment assessment

Iran's Revolutionary Guard has publicly broadcast warnings against transits and has carried out multiple strikes. Nine confirmed attacks on vessels have occurred since the start of the conflict.

Unlike the Houthi campaign in the Red Sea - which showed a degree of selective targeting based on flag, operator, or affiliation - the current threat environment shows no clear pattern linking affected vessels by flag, ownership, or operator. All merchant vessels, regardless of profile, are exposed. The exceptions appear to be vessels operating under Iranian flags or carrying Iranian cargo destined for China or India.

Commercial deterrence, not blockade

The more accurate framing is commercial deterrence. Elevated insurance costs, operational unpredictability, and rising risk premiums are doing the work that physical closure cannot. Iran is making transit economically unattractive rather than physically impossible.

There are no confirmed sea mine deployments in the Strait at this stage, though standoff drones and missile threats remain active across the wider Gulf of Oman. A full blockade remains strategically difficult to enforce given the size of the waterway and the international nature of the traffic.

Sanctions outlook

Do not expect an immediate new package while active military operations continue. Our base case at Kpler is roughly four weeks or more for the continuation of current operations. New measures typically follow after cessation of hostilities - a pattern consistent with how the Trump administration approached Venezuela sanctions earlier this year.

When flows do eventually resume, expect a probable uptick in evasive behaviour:

• Dark ship-to-ship transfers
• Increased spoofing around the shadow fleet
• Operators prioritising economic incentives over traditional routing‍

What to watch: critical questions for traders and risk managers

The situation is developing by the hour. For those trading dry bulk or LNG freight, or managing trade risk exposure in the region, these are the questions that matter most right now:

Frequently asked questions

How does the Strait of Hormuz closure affect dry bulk shipping specifically?

Dry bulk transits are down 91%, with approximately 280 vessels trapped in the region. The Middle East Gulf accounts for 16-18% of global seaborne fertiliser exports and imports 25-30 million tonnes of grains annually. These flows have effectively stopped, compressing vessel supply and extending voyage times across the broader market.

Why are LNG freight rates spiking so dramatically?

Qatar's Ras Laffan facility - a major LNG export hub - is offline. The Mideast Gulf supplies approximately 20% of global seaborne LNG. Asian buyers are now competing with European buyers for Atlantic Basin and US cargoes, creating fundamental undersupply in an already tight carrier market.

Is the Strait of Hormuz physically blocked?

No. The disruption functions as commercial deterrence rather than a physical blockade. Elevated insurance costs, operational unpredictability, and active military threats make transit economically unattractive. There are no confirmed sea mine deployments at this stage.

What should compliance teams monitor?

Watch for GNSS interference affecting AIS data quality - this often appears as evasive behaviour but typically reflects signal disruption, not deception. After operations cease, expect increased dark ship-to-ship transfers and spoofing activity as flows resume under new sanctions pressure.

This analysis is based on Kpler market intelligence and expert commentary. For real-time data on Strait of Hormuz flows, vessel movements, and commodity trade, request access to Kpler here.