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European Oil Markets
18JUN

Hormuz down 80%; four ships in five gone

3 min read
12:45UTC

Vessel traffic through the world's most important oil chokepoint fell 80%, worsening from 70% in 24 hours. OPEC+'s emergency output increase replaces 1.3% of the lost throughput.

EconomicDeveloping
Key takeaway

Pipeline bypass capacity — Saudi Arabia's East-West Petroline and the UAE's Habshan–Fujairah pipeline combined — can offset at most 30–40% of normal Hormuz flow, meaning 60–70% of the current reduction is structurally unrecoverable until the strait reopens regardless of what alternative routes are activated.

Vessel traffic through the strait of Hormuz has fallen 80% below normal levels, a further deterioration from the 70% decline recorded on 1 March . The acceleration — ten percentage points in 24 hours — reflects the cumulative effect of shipping line withdrawals, P&I insurance cancellations, and Iran's demonstrated willingness to strike commercial vessels.

Roughly 20 million barrels of oil per day transited Hormuz before the conflict — approximately one-fifth of global consumption. At 80% reduction, roughly 16 million barrels per day of transit capacity has been removed from the market. OPEC+'s emergency 220,000-barrel-per-day production increase replaces 1.3% of the lost throughput. CMA CGM's emergency surcharges of $2,000–$4,000 per container and the all-time record VLCC freight rates are consequences of this contraction, not its cause — the chokepoint itself is closing.

Three tankers were attacked near the strait on 28 February — the MV Skylight, MKD Vyom, and Sea La Donna . An Indian mariner was killed on 1 March when a surface drone detonated against the MKD Vyom's hull 52 nautical miles northwest of Muscat — the first Indian national to die in the conflict. The remaining 20% of traffic likely consists of vessels already in transit when conditions deteriorated, ships flagged to non-belligerent states, or tankers operating under government rather than commercial insurance. Iran has now degraded all three pillars of The Gulf's energy export architecture — production at Ras Laffan, refining at Ras Tanura, transit through Hormuz . The trajectory is toward near-total closure.

Deep Analysis

In plain English

Normally about 20% of the world's traded oil passes through the Strait of Hormuz — a narrow channel between Iran and Oman with no practical alternative route at comparable volume. Four-fifths of that traffic has now stopped. Unlike a road with a detour, pipelines that could reroute exist but can carry at most a quarter of normal flow. The world's oil supply has effectively lost access to one of its most critical arteries, and the gap cannot be filled by alternative routes even if they operate at maximum capacity.

Deep Analysis
Synthesis

The pipeline bypass capacity figures are the critical missing element in assessing how much of the supply reduction can be mitigated independently of Hormuz reopening. Saudi Arabia's East-West Petroline (~5 million b/d to Yanbu) and the UAE's Habshan–Fujairah pipeline (~1.5 million b/d) together provide approximately 6.5 million b/d of bypass capacity against normal Hormuz flow of 17–21 million b/d. Even at full utilisation, these bypass at most 30–40% of normal volume. The IEA's emergency stockholding mechanism provides approximately 90 days of buffer at current disruption rates — a hard deadline after which physical supply tightness becomes unavoidable without Hormuz reopening.

Root Causes

Charter party contracts contain force majeure and war risk clauses that give operators legal cover — and sometimes obligation — to suspend voyages when an area is formally designated a war zone. Once a critical mass of operators invokes these clauses, remaining operators face asymmetric exposure: full risk with no commercial advantage from being among the few still transiting. This game-theoretic dynamic produces rapid, cascading market exits rather than gradual linear responses.

Escalation

The 10-percentage-point single-day deterioration from 70% to 80% follows an accelerating, not linear, pattern consistent with a market cascade: each operator that exits reduces the information available to remaining operators about safe transit, making further exits more likely. Absent a military escort programme or insurance market intervention, continued deterioration toward 90%+ within 48–72 hours is more probable than stabilisation.

What could happen next?
  • Consequence

    Pipeline bypass capacity covers at most 30–40% of normal Hormuz flow; the remaining reduction is structurally irreplaceable until the strait reopens, regardless of bypass utilisation rates.

    Immediate · Assessed
  • Risk

    The market cascade trajectory makes a near-total cessation of commercial Hormuz traffic probable within 48–72 hours absent a military escort programme or insurance market intervention.

    Immediate · Suggested
  • Risk

    IEA strategic reserves provide approximately 90 days of buffer at current disruption rates, after which physical supply tightness becomes unavoidable without Hormuz reopening.

    Short term · Assessed
  • Precedent

    An 80% disruption of Hormuz traffic likely exceeds any previous recorded figure for this strait, establishing a new benchmark for what a confined maritime conflict can achieve against global energy infrastructure.

    Long term · Suggested
First Reported In

Update #14 · Natanz unverified; Hormuz sealed

Al Jazeera· 3 Mar 2026
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Causes and effects
This Event
Hormuz down 80%; four ships in five gone
The 80% traffic decline removes roughly 16 million barrels per day of oil transit capacity from the market — a loss that OPEC+'s 220,000-barrel-per-day production increase cannot meaningfully offset, with the trajectory pointing toward near-total closure.
Different Perspectives
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Gulf oil producer
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Money manager positioned in WTI
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Indian refiner buying Urals
Indian refiner buying Urals
Bought Russian crude at a discount that narrowed to $1-2 a barrel in the week to 29 July from over $10, as Hormuz risk pushed it toward Urals. If that risk eases with the strike now called off, the discount it is currently enjoying could re-widen just as fast.
Russian diesel exporter
Russian diesel exporter
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War-risk underwriter
War-risk underwriter
Withdrew war-risk cover for Saudi-linked hulls on 24 July and has not reinstated it, holding Bab el-Mandeb tanker transits near 7.5 a day. A cancelled strike does not by itself trigger the committee review needed to re-accept the class.
Northwest European refiner
Northwest European refiner
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