March 22, 2026

Will the Strait of Hormuz reopen to all LNG traffic before May 2026?

Map of the Strait of Hormuz. Source: https://commons.wikimedia.org/wiki/File:Hormuz_map.png

Map of the Strait of Hormuz. Source: https://commons.wikimedia.org/wiki/File:Hormuz_map.png

Phillip Godzin’s pgodzinai forecasts 5%

This is Phillip Godzin’s full report from his pgodzinai bot. Condensed version here.

Perplexity response:

## Response to Forecasting Query

I have identified a significant data limitation: only 4 search results were provided, whereas a comprehensive assessment typically requires 10+ sources covering current situation status, official statements, conflict developments, expert timelines, and market indicators. Below I present available information with this constraint noted.

Available Source Summaries

1. Hellenic Shipping News – “Traffic is trickling through Strait of Hormuz”

  • Status: Recent reporting (specific date not provided in excerpt)
  • Summary: About 22 vessels carrying crude, LPG, and LNG remain anchored in the strait awaiting confirmation for safe passage. The headline suggests some traffic movement (“trickling”) is occurring, indicating partial reopening rather than complete closure. The waiting status of these vessels indicates passage protocols are uncertain or restrictive.

2. Safety4Sea – “Windward: Hormuz traffic remains critically constrained”

  • Status: Recent (date not provided)
  • Summary: According to Windward vessel tracking data, maritime activity shows “near-zero transit” through the Strait of Hormuz. This suggests traffic remains at extreme constraint levels despite any minor movements. The use of “remains” indicates ongoing restrictions rather than recent changes.

3. Riviera Maritime Media – “Hormuz closure week two: tanker markets highly volatile”

  • Status: Early phase of crisis (indicated by “week two” reference)
  • Summary: Multiple data sources (Clarksons, Kpler, Bloomberg) confirm vessel transits are “~95% below normal levels” with “sharply reduced” activity. The reference to “week two” suggests this reporting came approximately 7-14 days after conflict onset, indicating these data may be 1-2+ weeks old at current date (March 19, 2026).

4. Arab Reform Institute – “Hormuz Under Fire: LNG Disruption”

  • Status: Analytical assessment (date not provided)
  • Summary: Daily tanker movements collapsed from a baseline of 37 movements, showing the severity of disruption. The article frames this as an ongoing disruption phase rather than resolution phase.

Current Assessment Status

Critical Information Gaps Requiring Additional Search Results:

  • No recent updates from March 2026 on conflict status or resolution trajectory
  • No official statements from Iran, U.S., international maritime authorities, or UN regarding passage conditions
  • No expert timelines on expected reopening timeframe
  • No LNG market pricing or inventory data reflecting current supply expectations
  • No shipping industry guidance on route alternatives or expected return to normalcy
  • No statements from major LNG exporters (Qatar, Australia, etc.) regarding operations

What the Available Data Shows (as of unknown recent date):

  • Traffic remains severely restricted (~95% reduction)[3]
  • Significant vessel backlog exists (22+ stranded vessels)[1]
  • The crisis appears to still be in early phases based on “week two” language[3]
  • Some limited vessel movement is occurring, suggesting the strait hasn’t achieved complete, permanent closure[1]

Required for Effective Forecasting:
To assess whether reopening occurs by May 31, 2026 (approximately 10 weeks from current date), you would need: current status of hostilities, any peace negotiations or diplomatic developments, statements from passage authorities, current shipping industry assessments of timeline, and LNG market futures pricing reflecting expected supply resumption.

Grok response:

  1. Title: How Iran Has Effectively Closed the Strait of Hormuz
    Description: Bloomberg article on Iran’s blockade and naval escorts.
    Published: March 19, 2026 (1 hour ago)
    Summary: Iran has effectively closed the Strait through attacks on shipping, halting about a fifth of global LNG supply mostly from Qatar. Major news outlets report no regular international LNG traffic, with only sporadic sanctioned vessels passing. Reopening requires a ceasefire, as current risks prevent insurance and escorts for LNG carriers.[1][2]
  2. Title: Trump Seeks End to Attacks on Energy Sites as Gas Fields Burn
    Description: Bloomberg on US efforts amid ongoing disruptions.
    Published: March 19, 2026 (3 hours ago)
    Summary: Efforts to reopen the Strait, a chokepoint for 20% of global oil and LNG, face Iranian resistance with continued attacks. No LNG carriers reported transiting recently, exacerbating global shortages. Major outlets confirm severe restrictions persist.[3]
  3. Title: European Gas Jumps 35% After World’s Top LNG Plant Hit By Iran
    Description: Bloomberg on market impacts from Qatar facility attack.
    Published: March 19, 2026 (6 hours ago)
    Summary: Qatar’s LNG facilities attacked, halting exports; Strait remains closed to most traffic. Crisis won’t end with war alone due to damage; no reopening for LNG noted. Energy prices surge as 20% of supply blocked.[4]
  4. Title: Iran War: Hormuz Reopening Looks Unlikely Without a Ceasefire
    Description: Bloomberg analysis on prospects amid war.
    Published: March 18, 2026 (1 day ago)
    Summary: US push to reopen fails without ceasefire; LNG traffic zero for weeks. Iran vows sustained closure; experts see no near-term normalization. Global crisis deepens with trapped carriers.[5]
  5. Title: Unblocking Strait of Hormuz Is in China’s Interest, Greer Says
    Description: Bloomberg on diplomatic pressures.
    Published: March 18, 2026 (1 day ago)
    Summary: China urged to help reopen amid halted flows; only select Chinese vessels pass. No broad LNG resumption; restrictions target US allies. War escalation blocks progress.[6]
  6. Title: Traffic is trickling through Strait of Hormuz
    Description: CNBC tracker on vessel movements.
    Published: March 18, 2026 (1 day ago)
    Summary: Traffic down to trickle post-Feb 28 war start; 21 tankers total since, none LNG recently. 400+ vessels backlog; insurance voided, no escorts. LNG carriers trapped inside Gulf.[7]
  7. Title: Strait of Hormuz: Which countries’ ships has Iran allowed safe passage to
    Description: Al Jazeera on selective access.
    Published: March 16, 2026 (3 days ago)
    Summary: Iran allows non-US/allied ships; LNG halted for most international traffic. Qatar exports stopped after attacks; strait open only selectively. No full reopening reported.[8]
  8. Title: Hormuz traffic increases, at least two sanctioned ships cross strait
    Description: S&P Global on daily tracking.
    Published: March 11, 2026
    Summary: Traffic rose slightly to 8 ships on Mar 10 from 3, but LNG zero for 10 days straight. Normal: 35 LNG/LPG daily; now restricted severely. Sanctioned vessels only.[2][9]
  9. Title: See tanker traffic in the Strait of Hormuz come to a standstill
    Description: Reuters graphic on traffic halt.
    Published: March 5, 2026
    Summary: Tanker traffic standstill since war; LNG similarly halted. Data as of Mar 10 shows persistence. Major outlets confirm no recovery.[10]
  10. Title: With the Strait of Hormuz choked by war, the Panama Canal reaps…
    Description: CNN on rerouting effects.
    Published: March 12, 2026 (7 days ago)
    Summary: Strait severely restricted; LNG from Qatar/US East Coast rerouted. No normalization; war spirals. Panama traffic up as alternative.[11]

Current Status and Recent Developments

As of March 19, 2026, major news outlets including Bloomberg, Reuters, and Al Jazeera uniformly report that the Strait of Hormuz remains effectively closed or severely restricted to international maritime LNG traffic due to the ongoing US-Israeli-Iran war that began around February 28, 2026.[1][7] Iranian forces have conducted attacks on commercial vessels, Qatar’s Ras Laffan LNG complex (world’s largest, ~20% global supply), and other Gulf energy sites, leading to zero LNG carrier transits for at least 10-19 consecutive days (normal pre-war: ~35 LNG/LPG daily).[2][9] Approximately 20-280 LNG and tankers are trapped in the Persian Gulf, with backlogs of 400+ vessels outside; insurance providers have canceled coverage, and no US naval escorts are provided, paralyzing operations.[7][12]

Only sporadic transits occur: 21 tankers total since war start (mostly oil, some sanctioned/Iranian-linked or Chinese), rising slightly to 8 ships on March 10 but still no LNG; Iran allows selective passage for non-US/ally flagged vessels (e.g., some Chinese, Indian LPG).[2][8] QatarEnergy declared force majeure on LNG shipments March 4; South Pars gas field and other hubs damaged.[13]

Escalation and No Reopening Signals

No major outlet reports reopening to unrestricted international LNG traffic. Instead, updates show escalation: Iranian Expediency Council member stated March 14 the strait “will remain closed”; fresh attacks March 19 on Ras Laffan, Saudi/UAE sites.[14] Bloomberg experts note reopening “unlikely without ceasefire,” as Trump seeks diplomatic pressure (e.g., via China) but faces resistance.[5][6] X posts from March 19 confirm paralysis: “Strait closed,” “LNG ships trapped,” energy crisis accelerating.[15][16]

Economic Data and Impacts (Recent Stats)

  • LNG traffic: 0 carriers March 1-19 (tracking data March 10-18).[9]
  • Global share affected: 20-21% LNG/oil pre-war (EIA/IEA 2024-25 baselines hold).[17]
  • Market reaction (March 19): European TTF gas +35% to €54-70/MWh; oil Oman $150+/bbl, Brent-US discount $20+.[4]
    Rerouting via Panama/Suez up, but insufficient for LNG volumes; South Asia demand cut 2-3Mt Q2-Q3 per Wood Mackenzie (March 11 data).[18]

No authoritative tracker (e.g., EIA chokepoint update post-2025) shows resumption; all sources indicate sustained halt through at least mid-March, with war dynamics pointing to prolonged restriction absent de-escalation.[19]

Extracted resolution criteria links:
[]

Extracted resolution criteria links:
[]


Anthropic Binary response:

Reasoning and Analysis

Current Situation Assessment (March 19, 2026)

The evidence is overwhelming and consistent across all sources:

  • The Strait of Hormuz has been effectively closed to LNG traffic since the war began ~February 28, 2026
  • Zero LNG carriers have transited for at least 19 consecutive days (normal baseline: ~35 LNG/LPG daily)
  • Fresh attacks occurred today (March 19) on Qatar’s Ras Laffan LNG complex
  • Iran has explicitly stated the strait “will remain closed”
  • Insurance has been voided, 400+ vessel backlog, no naval escorts operating
  • War is escalating, not de-escalating

What Would Need to Happen for Yes Resolution

The resolution requires LNG traffic to be “not halted or severely restricted through May 31, 2026.” This is an extremely high bar requiring:

  1. Ceasefire or decisive military outcome — No talks reported; war only 3 weeks old and escalating
  2. Safe passage protocols established — Weeks after any ceasefire
  3. Insurance restoration — Weeks after security established
  4. LNG infrastructure repair — Qatar’s Ras Laffan (world’s largest LNG facility) has been attacked; repairs take months
  5. Full resumption to ALL international traffic — Even selective reopening wouldn’t suffice

Critical Assumptions and Their Failure Probabilities

AssumptionFailure ProbabilityImpact if Wrong
War continues through May without ceasefire~20% chance of ceasefire by May 31High, but ceasefire alone insufficient
Even with ceasefire, full LNG reopening takes months~15% chance of rapid restorationMedium-high
Infrastructure damage prevents quick resumption regardless~10% chance damage is minimal/repairableMedium

Timeline Analysis

  • By April 15 (~4 weeks): Ceasefire probability ~8%, full reopening ~1%
  • By May 15 (~8 weeks): Ceasefire probability ~18%, full reopening ~3%
  • By May 31 (~10 weeks): Ceasefire probability ~22%, full reopening ~4%
  • By December 2026 (~9 months): More plausible but still uncertain, ~25-35%

Compound Probability

Even optimistically: P(ceasefire by May) × P(full LNG reopening given ceasefire) × P(sustained through May 31) ≈ 0.22 × 0.15 × 0.8 ≈ 2.6%

Adding a small probability for unexpected scenarios (regime change, sudden capitulation, forced reopening through military action) adds perhaps 1-2%.

Historical Base Rate

Major strait closures during active warfare have never resolved in under 10 weeks historically. The Iran-Iraq Tanker War disruptions lasted years. The 2024-25 Houthi Red Sea crisis (a far less intense conflict) lasted well over a year.

Probability: 4%
The extracted probability is: 4%


Anthropic Binary response:

Reasoning

Current Situation Assessment (March 19, 2026):

  • The US-Israel-Iran war began ~February 28, 2026 (~3 weeks ago)
  • LNG carrier transits through Hormuz: zero for 19+ consecutive days
  • Iran attacked Qatar’s Ras Laffan LNG complex (world’s largest) today
  • 400+ vessels backlogged; insurance canceled; no naval escorts provided
  • Iran explicitly states the strait “will remain closed”
  • Bloomberg analysis: reopening “unlikely without ceasefire”
  • Only sporadic oil tanker transits (sanctioned/Iranian-linked vessels)
  • War is escalating, not de-escalating

Requirements for YES resolution:
The question requires ALL international maritime LNG traffic to be unrestricted through May 31, 2026. This demands:

  1. A ceasefire or decisive military outcome
  2. Mine clearance and safety certification
  3. Insurance market restoration for the region
  4. Repair of damaged Qatar LNG facilities
  5. Vessel repositioning and resumption of normal operations
  6. Sustained unrestricted traffic through end of May

Timeline Analysis:

  • ~10 weeks remain until May 31
  • Even if a ceasefire occurred tomorrow, practical reopening to all LNG traffic would take 3-6 weeks minimum (mine sweeping, insurance, repairs, testing)
  • Qatar facility damage means even strait reopening ≠ LNG traffic resumption
  • Historical parallels (Iran-Iraq tanker war: years; 2019 tanker attacks: months to de-escalate) suggest rapid resolution is rare

Key Assumptions & Failure Probabilities:

AssumptionP(incorrect)Impact
War continues without ceasefire through mid-April~85% it continues; ~15% ceasefire by mid-AprilHigh
Even with ceasefire, full LNG restoration takes 3+ weeks~75% true; ~25% fasterHigh
Qatar facility damage prevents normal LNG volumes even if strait reopens~70% trueModerate

Probability Tree:

  • P(ceasefire by ~May 7, allowing 3+ weeks for reopening) ≈ 12-18%
  • P(full unrestricted LNG traffic within 3 weeks of ceasefire) ≈ 15-25%
  • P(no re-escalation through May 31) ≈ 70%
  • Combined optimistic path: ~1.5-3%

Adding alternative scenarios (regime collapse, decisive military action, China-brokered deal): +2-3%

The conflict is actively escalating with fresh attacks on energy infrastructure today. The resolution bar (“all international maritime LNG traffic…not halted or severely restricted”) is extremely high. Even partial reopening wouldn’t suffice.

Probability: 4%
The extracted probability is: 4%


Anthropic Binary response:

Reasoning: Strait of Hormuz LNG Traffic Reopening by May 2026

Current Situation Assessment

As of March 19, 2026:

  • Active war between US/Israel and Iran began ~February 28, 2026 (three weeks ago)
  • Zero LNG carriers have transited the strait since war start (normal: ~35 LNG/LPG daily)
  • Active escalation: fresh attacks on Qatar’s Ras Laffan LNG complex (world’s largest) today
  • 400+ vessel backlog; insurance canceled; no naval escorts
  • Iran explicitly vows continued closure
  • Only selective passage for non-US ally vessels (some Chinese/Indian oil tankers)
  • QatarEnergy declared force majeure on LNG shipments March 4

Resolution Requirements

The question requires that LNG traffic is not halted or severely restricted through May 31, 2026 — meaning full, unrestricted access for all international LNG carriers. This is an extremely high bar.

Key Assumptions and Failure Probabilities

Assumption 1: No ceasefire within ~10 weeks

  • War is 3 weeks old and actively escalating
  • No peace negotiations reported; Iran vows sustained closure
  • Historical precedent: wars of this scale rarely end in weeks (Iran-Iraq Tanker War lasted 8 years; Red Sea Houthi disruption lasted 1+ year)
  • P(ceasefire by early-mid May): ~10-12%

Assumption 2: Even with ceasefire, full reopening takes significant additional time

  • Mine clearance, insurance reinstatement, infrastructure repair (Ras Laffan damaged)
  • Trust-building and verification period needed
  • P(full unrestricted LNG reopening within weeks of ceasefire): ~25-30%

Assumption 3: No forced reopening without ceasefire

  • US naval escorts discussed but not implemented; Iran actively hostile
  • P(forced full reopening via military escorts): ~3%, and P(it results in unrestricted all-country LNG traffic): ~20%

Probability Calculation

  • Path 1 (ceasefire → reopening): 0.11 × 0.27 × 0.70 (stays open) ≈ 2.1%
  • Path 2 (forced reopening without ceasefire): 0.03 × 0.20 ≈ 0.6%
  • Path 3 (dramatic regime change/capitulation): ~0.5%
  • Path 4 (unexpected diplomatic breakthrough, e.g., China-brokered): ~1%

Combined: ~4.2%

Additional Considerations

  • The question’s background explicitly states war has halted LNG traffic — this is the baseline
  • Active escalation today (attacks on Ras Laffan) suggests worsening, not improving
  • Even if strait technically reopens, damaged Qatar infrastructure limits LNG supply
  • Historical base rate: only ~35% of forecast questions resolve positively
  • I tend toward overconfidence, so I should not go lower than warranted by actual analysis

Probability: 5%
The extracted probability is: 5%

Gemini Binary response:

This is a forecast of the likelihood that the Strait of Hormuz will reopen to all international maritime LNG traffic before May 31, 2026. The current date is March 19, 2026. The window for resolution is approximately 10 weeks.

Reasoning Rationale

  1. Current Status is an Effective Blockade: As of mid-March 2026, there is a consensus among all provided, recent intelligence sources (including Bloomberg, Reuters, S&P Global, and Al Jazeera) that the Strait of Hormuz is effectively closed to international LNG traffic. This closure is a direct result of an ongoing war involving Iran that began in late February 2026. LNG transits have been at or near zero for weeks, a stark contrast to the pre-war normal of approximately 35 LNG/LPG carriers per day.
  2. Prerequisites for Reopening are Not Being Met: A “Yes” resolution requires the resumption of LNG traffic to a level that is “not severely restricted.” This is contingent on a chain of events, each with a low probability of occurring within the short 10-week timeframe:
    • Ceasefire/De-escalation: The conflict is reportedly escalating, not de-escalating, with fresh attacks occurring as recently as March 19. Iran has explicitly stated its intent to keep the strait closed. Analysts cited by Bloomberg believe a reopening is “unlikely without a ceasefire.” The probability of a durable peace agreement being brokered and implemented in the next 8-10 weeks is extremely low.
    • Security & Insurance: Even if a ceasefire were declared, it would take time to restore confidence. Insurers have voided coverage, and they would likely require a sustained period of proven stability before re-entering the market for LNG carriers, which are high-value assets.
    • Infrastructure Damage: Critically, the world’s largest LNG export facility in Qatar has reportedly been damaged in an attack. One source explicitly notes that the crisis “won’t end with war alone due to damage.” Significant repairs to such a facility would likely take many months, if not longer. Even if the strait were declared safe, there would be little to no LNG to ship from the primary regional supplier, making the resumption of “international maritime LNG traffic” a moot point.
  3. Timeline is a Major Constraint: Major international conflicts rarely resolve within a few months. The combination of achieving a ceasefire, restoring maritime security, and repairing critical industrial infrastructure makes the timeline to May 31, 2026, exceptionally challenging. Each necessary step requires time, and failure in any one step prevents a “Yes” resolution.
  4. Analysis of Key Assumptions:
    • Assumption 1: The war will not end suddenly before the resolution date. The momentum of the current conflict suggests it will be prolonged. A sudden, unexpected peace is a “black swan” event. Probability of this assumption being incorrect is estimated at ~5%.
    • Assumption 2: Reported damage to Qatari LNG facilities is significant and will impede exports for longer than 10 weeks. An attack on such a critical global energy node is unlikely to be superficial. The market reaction (gas prices +35%) confirms the perceived severity. The probability of this assumption being incorrect is estimated at ~10%.

Conclusion

The path to a “Yes” resolution is blocked by two major, independent factors: an active and escalating war preventing safe passage, and significant damage to the primary LNG export facility in the region. Both of these issues would need to be fully resolved within the next 10 weeks. Given the complexities of diplomatic negotiations, military de-escalation, and industrial repair, this is a highly improbable scenario. The overwhelming weight of evidence points to the strait remaining closed or, at best, seeing only a trickle of traffic that would still be classified as “severely restricted” by major news outlets. The chance of a full reopening is not zero, as sudden geopolitical shifts can occur, but it is exceptionally remote.

Probability: 1%

The extracted probability is: 1%

GPT Binary response:

Looking at this forecasting question, I need to assess whether the Strait of Hormuz will reopen to “all international maritime LNG traffic” without severe restrictions by May 31, 2026 – approximately 10 weeks from today (March 19, 2026).

Current Situation Assessment:

The research shows an extremely challenging baseline situation:

  • An active US-Israeli-Iran war began around February 28, 2026
  • Zero LNG carrier transits for 10-19 consecutive days (normal: ~35 daily)
  • Iranian forces conducting ongoing attacks, including fresh strikes on March 19, 2026
  • Qatar’s Ras Laffan LNG complex (20% of global supply) attacked and offline
  • 20-280 LNG tankers trapped in the Persian Gulf with 400+ vessel backlog
  • Insurance coverage canceled, no naval escorts provided
  • Iranian officials explicitly stated March 14 that the strait “will remain closed”

Requirements for Positive Resolution:

For the strait to reopen to “all international maritime LNG traffic” without severe restrictions, several conditions must align:

  1. End of hostilities or stable ceasefire
  2. Iranian policy reversal from current closure stance
  3. Restoration of insurance coverage and security guarantees
  4. Repair of damaged LNG infrastructure
  5. Return of commercial confidence for full international operations

Timeline Analysis (10 weeks remaining):

Scenario 1 – Rapid War Resolution (15% probability)
Even if conflict ended within 4 weeks, achieving full normalization would require:

  • Iranian policy shift (70% likely if war ends)
  • Infrastructure restoration (80% feasible)
  • Complete operational normalization (90% achievable)
    Combined path probability: 15% × 70% × 80% × 90% = 7.6%

Scenario 2 – Partial De-escalation (20% probability)
Limited détente allowing broader but not universal access:

  • Selective expansion beyond current Chinese/sanctioned vessels (30% likely)
  • Meeting “all international” criteria under partial conditions (40% likely)
    Combined path probability: 20% × 30% × 40% = 2.4%

Scenario 3 – Continued Conflict (65% probability)
Given fresh March 19 attacks, explicit closure statements, and escalating war dynamics:

  • Reopening during active hostilities: ~1% likely
    Combined path probability: 65% × 1% = 0.7%

Critical Assumptions Analysis:

  1. War duration assumption: 75% confidence war continues through May 2026
  • If wrong: Would dramatically increase reopening probability
  • Recent escalation patterns and stated Iranian positions support continuation
  1. Iranian policy rigidity: 80% confidence Iran maintains closure even with de-escalation
  • If wrong: Could enable broader access
  • Current strategic messaging suggests sustained closure commitment
  1. Resolution criteria interpretation: 90% confidence requires full normalization
  • Current selective passage (some Chinese vessels) doesn’t meet “all international” standard
  • High bar set by complete absence of “severe restrictions”

Base Rate Considerations:
Historic strait closures during active warfare typically persist for months to years (1980s Tanker War precedent). The combination of ongoing conflict, explicit closure policy, infrastructure damage, and insurance/security void creates multiple compounding barriers.

Risk-Adjusted Calculation:
Primary calculated probability: 7.6% + 2.4% + 0.7% = 10.7%

However, accounting for:

  • Overconfidence bias warnings
  • Severity of current military escalation
  • Multiple simultaneous failure points required
  • 35% historical positive resolution base rate suggesting caution

The confluence of active warfare, explicit Iranian closure commitment, damaged infrastructure, and only 10 weeks for complete reversal makes positive resolution highly unlikely.

Probability: 8%

The extracted probability is: 8%

GPT Binary response

Looking at this question, I need to assess whether the Strait of Hormuz will reopen to all international maritime LNG traffic before May 31, 2026, given that today is March 19, 2026 – leaving approximately 2.5 months.

Current Situation Analysis:

The most recent reporting from March 19, 2026 shows a dire situation:

  • The US-Israeli-Iran war that began around February 28 has effectively closed the Strait
  • Zero LNG carrier transits reported for 10-19 consecutive days (normal pre-war: ~35 LNG/LPG vessels daily)
  • Iran conducted fresh attacks on March 19 on Qatar’s Ras Laffan LNG complex (handling ~20% of global supply)
  • Iranian Expediency Council explicitly stated March 14 that the strait “will remain closed”
  • Qatar declared force majeure on LNG shipments, indicating major infrastructure damage
  • 20-280 LNG carriers are trapped in the Persian Gulf with 400+ vessel backlog outside
  • Insurance coverage has been cancelled for commercial shipping

Resolution Requirements:

The resolution criteria requires that traffic be “not halted or severely restricted” – meaning we need substantial restoration of normal LNG flows, not just token reopening. Given normal traffic of ~35 LNG vessels daily, “not severely restricted” likely means at least 50-70% of normal capacity.

Pathways to Reopening:

For a “Yes” resolution, several sequential developments must occur within ~2.5 months:

  1. War cessation or major de-escalation – Currently the conflict appears to be escalating rather than winding down
  2. Iranian agreement to fully reopen – Iran has explicitly stated intentions to keep it closed and views this as strategic leverage
  3. Infrastructure repair – Qatar’s LNG facilities and other damaged infrastructure need restoration
  4. Commercial viability restoration – Insurance coverage, safety protocols, and normal shipping operations must resume

Timeline Probability Assessment:

  • 1 month scenario: Would require immediate ceasefire and rapid infrastructure restoration – extremely unlikely (~5% chance)
  • 2.5 months (our timeframe): More time but still requires multiple rapid positive developments sequentially
  • 6+ months: More realistic timeframe for war resolution and infrastructure repair

Key Risk Factors:

The most critical assumptions that could dramatically alter this forecast:

  1. Assumption: War continues through May (70% confidence) – If this fails and war ends quickly, reopening probability could increase to 40-50%
  2. Assumption: Infrastructure damage is substantial (80% confidence) – If damage is less severe than reported, post-ceasefire reopening could be faster
  3. Assumption: Iran maintains strategic closure position (90% confidence) – Iran could theoretically reverse course if economic/diplomatic costs become too high

Base Rate Considerations:

Historical precedents for major maritime chokepoint closures during active warfare show they typically remain closed for the duration of conflicts. Middle East conflicts involving major powers rarely resolve within months.

Mathematical Assessment:

Accounting for different scenarios:

  • Continued war (70% probability): ~0% reopening chance
  • Early war resolution (25% probability): ~45% reopening chance
  • Iranian strategic reversal (5% probability): ~75% reopening chance

Expected probability ≈ 0.70 × 0% + 0.25 × 45% + 0.05 × 75% = 15% (Carolyn‘s note: This equation boils down to simply 45% times 75%, which is is 0.45 times 0.75 = 0.3375, or 33.75% probability.)

However, given the need for sequential positive developments in a compressed timeframe, the active escalation as of today, explicit Iranian closure statements, and the requirement for substantial (not partial) reopening, I should be more conservative.

The convergence of evidence points to a very challenging scenario for reopening within the timeframe, though some meaningful possibility exists for rapid geopolitical developments.

Probability: 12%

The extracted probability is: 12%

GPT Binary response:

Looking at this forecasting question, I need to assess whether the Strait of Hormuz will reopen to “all international maritime LNG traffic” without being “halted or severely restricted” by May 31, 2026 – giving me about 2.3 months from today (March 19, 2026).

Current Situation Analysis

The research shows an extremely dire situation as of today:

Current Status: Zero LNG carriers have transited the strait since early March. Bloomberg reports from 1 hour ago (March 19) confirm Iran has “effectively closed the Strait through attacks on shipping, halting about a fifth of global LNG supply.” S&P Global tracking data shows “LNG zero for 10 days straight” compared to normal traffic of “35 LNG/LPG daily.”

Key Constraints:

  • Active US-Israeli-Iran war ongoing since ~February 28
  • Iran officially stated March 14 the strait “will remain closed”
  • Qatar’s Ras Laffan LNG complex (20% of global supply) attacked and damaged
  • Insurance coverage canceled for all LNG carriers
  • 400+ vessel backlog outside the strait
  • 20-280 LNG carriers trapped inside the Persian Gulf
  • No US naval escorts being provided

What Must Happen for Reopening

For a “Yes” resolution, the strait must allow “all international maritime LNG traffic” without being “severely restricted.” This requires:

  1. Ceasefire/End of hostilities – Bloomberg experts note reopening “unlikely without ceasefire”
  2. Infrastructure repairs – Qatar’s damaged LNG facilities must be restored
  3. Insurance restoration – Commercial coverage must resume
  4. Security guarantees – Safe passage protocols established
  5. Traffic normalization – Return to essentially normal LNG flow levels

Timeline Analysis (73 days remaining)

Phase 1 (Next 30 days): Would need ceasefire and initial diplomatic agreements
Phase 2 (Days 30-60): Infrastructure repairs and insurance restoration
Phase 3 (Days 60-73): Full traffic resumption and sustained normal operations

Even in an optimistic scenario where fighting stops within 2-4 weeks, the subsequent phases face significant challenges given the scale of infrastructure damage and commercial confidence restoration needed.

Scenario Probabilistic Analysis

Rapid ceasefire within 4 weeks (15% probability): Even then, infrastructure repairs, insurance restoration, and traffic normalization in remaining ~6 weeks faces major challenges. Success probability: ~40%. Contribution: 6%

Gradual de-escalation over 6-8 weeks (20% probability): Leaves insufficient time for full restoration. Success probability: ~15%. Contribution: 3%

Continued conflict through April (60% probability): Virtually no chance of meeting resolution criteria. Success probability: ~2%. Contribution: 1.2%

Partial reopening under pressure (5% probability): But selective passage would still qualify as “severely restricted.” Success probability: ~10%. Contribution: 0.5%

Key Assumptions and Risk Assessment

Assumption 1: War continues at current intensity (75% confidence)
If this fails and rapid ceasefire occurs, reopening becomes more viable, but infrastructure/commercial restoration still challenging.

Assumption 2: Infrastructure damage requires weeks/months to repair (80% confidence)
Qatar’s facilities are critical; even minor repairs to LNG plants take substantial time.

Assumption 3: Commercial confidence restoration is gradual process (85% confidence)
Insurance industry historically cautious about war-zone coverage restoration.

Base Rate and Historical Context

Similar chokepoint closures historically:

  • Suez Canal (Ever Given, 2021): 6 days but no active warfare
  • Persian Gulf Tanker War (1980s): Years of intermittent restrictions
  • Major strait closures during active warfare: Typically measured in months/years, not weeks

The current situation involves active warfare with explicit adversary commitment to closure, extensive infrastructure damage, and complete commercial confidence collapse.

Total probability from scenario analysis: ~10.7%

However, given my historical overconfidence bias and the extremely high bar set by requiring “all international maritime LNG traffic” to not be “severely restricted,” I should be more conservative. The resolution criteria demands essentially normal operations, not just token passage.

The confluence of active warfare, infrastructure damage, commercial paralysis, explicit adversary statements, and tight timeline creates an extremely challenging environment for restoration within 73 days.

Probability: 8%

The extracted probability is: 8%

All predictions: [1, 4, 4, 5, 8, 8, 12]
Filtered predictions: [4, 5, 8]

Median reasoning:

Reasoning: Strait of Hormuz LNG Traffic Reopening by May 2026

Current Situation Assessment

As of March 19, 2026:

  • Active war between US/Israel and Iran began ~February 28, 2026 (three weeks ago)
  • Zero LNG carriers have transited the strait since war start (normal: ~35 LNG/LPG daily)
  • Active escalation: fresh attacks on Qatar’s Ras Laffan LNG complex (world’s largest) today
  • 400+ vessel backlog; insurance canceled; no naval escorts
  • Iran explicitly vows continued closure
  • Only selective passage for non-US ally vessels (some Chinese/Indian oil tankers)
  • QatarEnergy declared force majeure on LNG shipments March 4

Resolution Requirements

The question requires that LNG traffic is not halted or severely restricted through May 31, 2026 — meaning full, unrestricted access for all international LNG carriers. This is an extremely high bar.

Key Assumptions and Failure Probabilities

Assumption 1: No ceasefire within ~10 weeks

  • War is 3 weeks old and actively escalating
  • No peace negotiations reported; Iran vows sustained closure
  • Historical precedent: wars of this scale rarely end in weeks (Iran-Iraq Tanker War lasted 8 years; Red Sea Houthi disruption lasted 1+ year)
  • P(ceasefire by early-mid May): ~10-12%

Assumption 2: Even with ceasefire, full reopening takes significant additional time

  • Mine clearance, insurance reinstatement, infrastructure repair (Ras Laffan damaged)
  • Trust-building and verification period needed
  • P(full unrestricted LNG reopening within weeks of ceasefire): ~25-30%

Assumption 3: No forced reopening without ceasefire

  • US naval escorts discussed but not implemented; Iran actively hostile
  • P(forced full reopening via military escorts): ~3%, and P(it results in unrestricted all-country LNG traffic): ~20%

Probability Calculation

  • Path 1 (ceasefire → reopening): 0.11 × 0.27 × 0.70 (stays open) ≈ 2.1%
  • Path 2 (forced reopening without ceasefire): 0.03 × 0.20 ≈ 0.6%
  • Path 3 (dramatic regime change/capitulation): ~0.5%
  • Path 4 (unexpected diplomatic breakthrough, e.g., China-brokered): ~1%

Combined: ~4.2%

Additional Considerations

  • The question’s background explicitly states war has halted LNG traffic — this is the baseline
  • Active escalation today (attacks on Ras Laffan) suggests worsening, not improving
  • Even if strait technically reopens, damaged Qatar infrastructure limits LNG supply
  • Historical base rate: only ~35% of forecast questions resolve positively
  • I tend toward overconfidence, so I should not go lower than warranted by actual analysis

Probability: 5%

=== Forecast Result ===


{
“probability_yes”: 0.05666666666666667,
“probability_yes_per_category”: null,
“continuous_cdf”: null
}

=== Reasoning ===

Reasoning: Strait of Hormuz LNG Traffic Reopening by May 2026

Current Situation Assessment

As of March 19, 2026:

  • Active war between US/Israel and Iran began ~February 28, 2026 (three weeks ago)
  • Zero LNG carriers have transited the strait since war start (normal: ~35 LNG/LPG daily)
  • Active escalation: fresh attacks on Qatar’s Ras Laffan LNG complex (world’s largest) today
  • 400+ vessel backlog; insurance canceled; no naval escorts
  • Iran explicitly vows continued closure
  • Only selective passage for non-US ally vessels (some Chinese/Indian oil tankers)
  • QatarEnergy declared force majeure on LNG shipments March 4

Resolution Requirements

The question requires that LNG traffic is not halted or severely restricted through May 31, 2026 — meaning full, unrestricted access for all international LNG carriers. This is an extremely high bar.

Key Assumptions and Failure Probabilities

Assumption 1: No ceasefire within ~10 weeks

  • War is 3 weeks old and actively escalating
  • No peace negotiations reported; Iran vows sustained closure
  • Historical precedent: wars of this scale rarely end in weeks (Iran-Iraq Tanker War lasted 8 years; Red Sea Houthi disruption lasted 1+ year)
  • P(ceasefire by early-mid May): ~10-12%

Assumption 2: Even with ceasefire, full reopening takes significant additional time

  • Mine clearance, insurance reinstatement, infrastructure repair (Ras Laffan damaged)
  • Trust-building and verification period needed
  • P(full unrestricted LNG reopening within weeks of ceasefire): ~25-30%

Assumption 3: No forced reopening without ceasefire

  • US naval escorts discussed but not implemented; Iran actively hostile
  • P(forced full reopening via military escorts): ~3%, and P(it results in unrestricted all-country LNG traffic): ~20%

Probability Calculation

  • Path 1 (ceasefire → reopening): 0.11 × 0.27 × 0.70 (stays open) ≈ 2.1%
  • Path 2 (forced reopening without ceasefire): 0.03 × 0.20 ≈ 0.6%
  • Path 3 (dramatic regime change/capitulation): ~0.5%
  • Path 4 (unexpected diplomatic breakthrough, e.g., China-brokered): ~1%

Combined: ~4.2%

Additional Considerations

  • The question’s background explicitly states war has halted LNG traffic — this is the baseline
  • Active escalation today (attacks on Ras Laffan) suggests worsening, not improving
  • Even if strait technically reopens, damaged Qatar infrastructure limits LNG supply
  • Historical base rate: only ~35% of forecast questions resolve positively
  • I tend toward overconfidence, so I should not go lower than warranted by actual analysis

Probability: 5%

End