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Strait of Hormuz & Persian Gulf — Maritime Status

Critical

Aggregated from gCaptain, Splash247, SAFETY4SEA, Maritime Executive, Marine Insight, Hellenic Shipping News, Offshore Energy, OilPrice, Rigzone, Al Jazeera, Middle East Eye & BBC · synced Jun 27, 2026, 8:27 PM · auto-refresh every 15 min

Last updated: Jun 27, 2026, 8:27 PM

Tensions in the region are critical, with recent reports indicating multiple tanker attacks. A tanker was struck by a drone off Oman [1], and another was struck in the Strait of Hormuz marking the second such incident in the day, exacerbating a deepening U.S.-Iran shipping crisis [5]. Navies have subsequently raised the threat level to ships in the area [7]. These events follow earlier U.S. counterstrikes on Iranian missile and drone storage facilities, retaliating for previous attacks on cargo ships [16][17][20].

Tankers & shipping lanes
A tanker was struck by a drone off Oman [1]. This incident follows another tanker being struck in the Strait of Hormuz, indicating a deepening U.S.-Iran shipping crisis [5]. Navies have increased the threat level for ships in the region [7]. Oman suggests the Strait of Hormuz may not return to its previous status and might impose transit fees for ships [14]. Previously, Saudi Arabia was ramping up oil exports as Gulf ports restarted [9], and Vitol sailed stranded aluminum cargo out of the Strait of Hormuz [11]. The IMO Chief has stated that shipping should not be used as collateral in the U.S-Iran conflict [10].
Seafarer safety & detentions
There are no new updates on seafarer safety or detentions directly related to the recent tanker strikes. However, 22 U.S.-interdicted Iranian tanker crew members previously arrived in Pakistan for repatriation [15].
Oil, gas & energy prices
The recent attacks on tankers and heightened tensions are likely to impact oil and LNG prices, though specific price changes are not detailed in the provided headlines. Previous reporting indicated crude falling on surging Hormuz shipments [24] and noted risks and opportunities in TTF gas and Brent crude markets as the Hormuz Strait reopens [22].
Geopolitics & military activity
Multiple drone attacks have occurred, including one on Bahrain [3] and another on a tanker off Oman [1]. The U.S. conducted counterstrikes on Iranian missile and drone storage facilities following previous attacks on cargo ships [16][17][20]. Gulf countries have strongly condemned Iran's drone attack on Bahrain [3]. The IRGC appears to be rebuffing a U.S. Strait of Hormuz 'hotline' [8]. Iran has reasserted control over Hormuz and warned Gulf States against supporting the U.S. [18]. There is discussion about the U.S. potentially relocating Gulf military bases westward, possibly to Israel [12]. Trump had previously blamed Iran for a 'foolish violation' of a ceasefire agreement over a ship attack in the Strait of Hormuz [13]. Hezbollah has rejected an Israel-Lebanon agreement, with Israeli attacks hitting the south [4], despite a proposed deal tying a ceasefire to Hezbollah disarmament [6]. Iran has also urged FIFA to take action regarding its World Cup treatment by the U.S. [2].

Sources used in this brief — citations [n] above map to the numbers below

  1. 1Maritime ExecutiveTanker Struck by Drone off Oman as Tensions Rise with Iran· Jun 27
  2. 2Al JazeeraIran urge FIFA to stand up to ‘really terrible’ World Cup treatment by US· Jun 27
  3. 3Fox WorldGulf countries strongly condemn Iran's drone attack on Bahrain as rising tensions threaten MOU· Jun 27
  4. 4Al JazeeraHezbollah rejects Israel-Lebanon agreement as Israeli attacks hit south· Jun 27
  5. 5gCaptainSecond Tanker Struck in Strait of Hormuz as U.S.-Iran Shipping Crisis Deepens· Jun 27
  6. 6Al JazeeraIsrael-Lebanon deal ties ceasefire to Hezbollah disarmament: Will it work?· Jun 27
  7. 7gCaptainTanker Struck In Hormuz As Navies Raise Threat Level To Ships· Jun 27
  8. 8Al Jazeera‘Pick up the phone’: IRGC appears to rebuff US Strait of Hormuz ‘hotline’· Jun 27
  9. 9gCaptainSaudi Arabia Is Ramping Up Oil Exports As Gulf Ports Restart· Jun 27
  10. 10Marine InsightShipping Must Not Be Used As Collateral In U.S-Iran War, Says IMO Chief· Jun 27
  11. 11gCaptainVitol Sails Stranded Aluminum Cargo Out Of Strait Of Hormuz· Jun 27
  12. 12Marine InsightU.S May Move Gulf Military Bases Hit By Iran Westward, Possibly To Israel· Jun 27
  13. 13Marine InsightTrump Blames Iran For ‘Foolish Violation’ Of Ceasefire Agreement Over Ship Attack In Strait Of Hormuz· Jun 27
  14. 14Marine InsightOman Says Strait Of Hormuz Unlikely To Return To Pre-War Status, Signals Possible Transit Fees For Ships· Jun 27
  15. 15Marine Insight22 US-Interdicted Iranian Tanker Crew Members Arrive In Pakistan For Repatriation· Jun 27
  16. 16BBC MEUS strikes Iran after attack on cargo ship· Jun 27

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Top flag administrations — fleet & certification snapshot

Approximate global ranking by gross tonnage with each flag's seafarer certification route. Figures are indicative — see each registry for the latest official statistics.

Refreshed daily 10:00 GMT
#FlagShipsGross tonnageCertification requirementsOfficial link
1Panama 🇵🇦~8,500~240 M GTPanama CoC or Certificate of Endorsement (CoE) issued by AMP after STCW course verification, sea-service evidence, medical fitness (PMA-approved) and yellow-fever / ENG1-equivalent. Recognises CoCs from 80+ STCW White-List flags.Open
2Liberia 🇱🇷~5,500~280 M GTLiberian CoC / CoE through LISCR — STCW-2010 compliant training, sea-service letters, medical (LISCR-approved doctor), oral assessment for Master/Chief Engineer. Recognises CoCs from STCW-compliant administrations.Open
3Marshall Islands 🇲🇭~5,200~270 M GTRMI CoC or CoE issued by IRI — STCW certificates, sea service, RMI-approved medical, oral exam for senior officers. Wide recognition of CoCs from White-List flag administrations.Open
4Hong Kong 🇭🇰~2,500~130 M GTHK CoC / CoP issued by Marine Department — IMO model-course aligned MET, structured sea-service, oral exam, HK-approved medical (MD/Form 53). Foreign CoC endorsement also available.Open
5Singapore 🇸🇬~4,500~100 M GTSingapore CoC / CoP via MPA — STCW courses at MPA-approved MET institutes, sea service, oral exam, MPA-approved medical. CoC endorsement for foreign CoCs from recognised STCW parties.Open
6Malta 🇲🇹~2,100~115 M GTMalta CoC / Certificate of Recognition (CoR) under Transport Malta — STCW evidence, sea service, ENG1-equivalent medical. Largest EU register; recognises EU and most White-List CoCs.Open
7Bahamas 🇧🇸~1,400~75 M GTBahamas CoC / CoE via BMA — STCW certificates, sea-service testimonials, BMA-approved medical (ML5), oral assessment for senior officers. Recognises CoCs from STCW White-List flags.Open
8United Kingdom 🇬🇧~1,300~20 M GTMCA CoC — Officer of the Watch / Chief Mate / Master via UK approved training providers, structured Training Record Book, sea service, ENG1 medical and MCA oral exam. CEC available for non-UK CoC holders.Open

Sources: Panama Ship Registry, LISCR, IRI (Marshall Islands), Hong Kong Marine Department, MPA Singapore, Transport Malta, Bahamas Maritime Authority, UK MCA, UNCTAD Review of Maritime Transport, and Clarksons World Fleet Register.

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