[REVISION HISTORY]

US-Iran Hormuz conflict: Blockade and energy crisis

Updated 45 times since CLSTR started tracking revisions of this situation.

What changed

2026-09-23 06:44 UTC → 2026-10-21 16:14 UTC · added ~~removed~~

The US–Iran maritime standoff in the Strait of Hormuz has intensified, causing significant global economic volatility. While President Trump previously claimed the strait was navigable, a diplomatic impasse has stalled reopening efforts. Defense Secretary Pete Hegseth stated the US Navy could maintain a naval blockade “indefinitely” through ship rotation, with Trump characterizing the blockade as a “steel wall.” CENTCOM reports that the blockade has expanded. As of September 12, 2026, American forces have diverted 100 commercial vessels over the last 60 days. This current phase, ordered by President Trump on July 14, aims to control vessels entering or exiting Iranian coastal zones. CENTCOM stated that “zero boats have crossed the blockade without the authorization of U.S. forces.” This follows the termination of a June 17 ceasefire framework triggered by persistent attacks in the Strait of Hormuz. Maritime traffic remains severely disrupted. Kpler data indicated ship traffic plummeted from a pre-conflict average of 95 vessels per day to approximately 15 vessels per day as of August 2026. ~~On September 21, 2026, the UK Maritime Trade Operations (UKMTO)~~ By late August, CENTCOM reported ~~two separate attacks within 24 hours: an inbound tanker~~ the blockade was ~~struck by an unknown projectile, causing minor injuries to two crew members,~~ “effective and ~~an outbound LPG tanker was struck by debris~~ strong,” successfully preventing Iran from ~~unknown projectiles. These incidents follow a drone strike~~ exporting oil by sea, though at least 40 vessels were permitted passage on humanitarian grounds. Disputes have emerged regarding transit volumes; while the ~~Al Maryah on September 20 and a hull breach on~~ Trump administration claimed volumes returned to near-normal, Iranian officials dismissed this as a ~~Marshall Islands-flagged~~ ‘big lie,’ and Kpler reported movement of less than 5 million barrels per day for the week ending August 30. On September 17, the IRGC claimed to have struck the Togo-flagged tanker ~~earlier in~~ Trend, causing a fire and immobilizing the ~~month.~~ vessel. Economic instability persists. Very Large Crude Carrier (VLCC) values have rallied up to 61% in two months, with Baltic VLCC daily charter rates rising from approximately $198,000 in July to nearly $722,946 by September 18. ~~On September 23, Kpler reported a further decline in Hormuz traffic, with only three commodity vessels passing through, well below the ten-day average of 15.~~

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