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// DOSSIER — strait-hormuz-tanker-attacks-record-high
Strait of Hormuz Tanker Attacks Reach Record High Since Start of US-Iran War
REL_TIME: 10 Oct 2026 10:12Z · LANG: EN
During the week of September 28 to October 5, 2026, attacks on oil, LNG, and LPG tankers in the Strait of Hormuz surged to a wartime record high of at least 12 incidents, according to maritime security sources. The escalation, driven by Iranian Revolutionary Guard Corps harassment and missile/projectile strikes, coincides with increased Gulf energy exports and pushed global oil prices above $100 per barrel. Concurrently, regional maritime disruption spread as Yemen's Houthis launched missile strikes near Aden International Airport, further threatening critical Middle East shipping chokepoints.
// Background
The conflict between the United States and Iran began on February 28, 2026, severely disrupting maritime traffic in the Strait of Hormuz—a chokepoint historically carrying roughly 20 percent of global oil and fuel supplies. Despite security risks and US Navy-led coalition monitoring, Gulf energy exporters pushed crude shipments above pre-war levels in late September 2026, resulting in a higher concentration of commercial vessels transiting the strait.
// Key Developments
- At least 12 tanker attacks were recorded between September 28 and October 5, 2026, the highest weekly total since the US-Iran war began on February 28.
- Twelve crew members were injured when the Panama-flagged oil tanker On Peace was struck by an unknown projectile in the Strait of Hormuz.
- Global oil prices surpassed $100 a barrel following the surge in Persian Gulf shipping attacks and IRGC threats to close transit routes.
- Parallel Houthi missile strikes targeted Aden International Airport in Yemen, escalating threats around the Bab el-Mandeb Strait.
// Timeline
-
US war with Iran begins, kicking off persistent military tension and maritime threats in the Persian Gulf.
-
IMO records previous peak of eight commercial shipping incidents in a single week.
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Outbound oil tanker hit in the southern Strait of Hormuz, prompting UKMTO Warning 143-26.
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Multiple inbound and outbound tankers hit by unknown projectiles, recorded under UKMTO Warnings 144-26, 145-26, and 146-26.
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Tanker struck at 1750 UTC causing an onboard fire; UKMTO issues Warning 147-26.
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India's Foreign Ministry reports 12 crew injured aboard Panama-flagged tanker On Peace.
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Maritime security data confirms a record 12 weekly attacks as crude oil prices rise above $100 per barrel.
// Perspectives
[Joint Maritime Information Center (JMIC)]
Maintains a SEVERE regional threat level, warning that Iranian forces are actively harassing and targeting commercial traffic along key maritime transit corridors.
[Islamic Revolutionary Guard Corps (IRGC)]
Asserts control over transit lanes and prohibited zones in the Strait of Hormuz, with advisers threatening to close illegal transit routes.
[International Maritime Organization (IMO)]
Monitors and officially records vessel security incidents, logging nine verified incidents during the peak week due to strict verification protocols.
// Quotes
“These actions continue to demonstrate Iran’s intent to assert presence along key transit lanes and maintain pressure on transiting vessels.”
