Iranian Revolutionary Guard Attacks Hormuz Tankers, Threatening Gulf Oil Exports

Iran Strikes Hormuz Tankers Daily as Gulf Oil Exports Reached Pre-War Levels

Iran‘s Revolutionary Guard has attacked at least seven commercial vessels near the Strait of Hormuz in the past week alone, targeting the very tankers that form the improvised engineering workaround quietly keeping Gulf oil flows near pre-war levels — and the workaround is running low on ships.

On October 5, Iran‘s Islamic Revolutionary Guard Corps (IRGC) hailed a commercial tanker transiting the strait approximately 11 nautical miles north of Khasab, Oman, and ordered it to turn back or face attack. The tanker complied. The following day, a projectile struck MT On Peace, injuring 12 crew members — 11 of them Indian nationals — prompting India’s Ministry of External Affairs to formally condemn the attack. On October 7, the UK Maritime Trade Operations Centre (UKMTO) reported yet another projectile strike in the strait, causing a fire in a vessel’s engine room.

The escalation is not random. According to maritime intelligence firm Marisks, commercial tankers have been systematically converted into instruments of diplomatic pressure — and Iran has deliberately intensified its campaign at the precise moment Gulf oil exports had clawed their way back to nearly pre-war levels. Marisks counted at least seven tanker incidents in the past week alone.

How Oil Is Still Moving — And Why That Is Getting Harder

Before the US-Israel air campaign against Iran began on February 28, 2026, the Strait of Hormuz — a narrow choke point measuring roughly 34 kilometers (21 miles) at its narrowest, between Iran to the north and Oman to the south — handled approximately 20 million barrels daily, accounting for about 20 percent of global petroleum consumption.

Iran closed the strait to unauthorized shipping within days of the war’s outbreak. By the second quarter of 2026, flows plummeted to 4.9 million b/d — a drop of roughly three-quarters.

But something remarkable happened over the following months: oil found new paths. Saudi Arabia’s East-West pipeline carries crude overland from the kingdom’s eastern fields to the Red Sea port of Yanbu, with a capacity of approximately 7 million b/d, and was pushed toward maximum utilization. The UAE’s Habshan-Fujairah pipeline, which can handle up to 1.8 million b/d, was similarly pressed into service. And a fleet of smaller tankers — Aframax and Suezmax-class vessels — began operating with AIS transponders switched off, physically shuttling crude through the southern shipping lane under US naval escort, then offloading to Very Large Crude Carriers (VLCCs) waiting in the Gulf of Oman beyond Iran‘s reach.

By September 30, the seven-day moving average for Middle East crude exports had reached 18.3 million barrels per day, according to maritime data firm Kpler — nearly matching the roughly 18 million b/d averaged in the 12 months before the war. A separate estimate from Vortexa put the 14-day moving average at 18.6 million b/d.

There is, however, a critical engineering constraint buried in those statistics: approximately 40 percent of exports bypass Hormuz entirely, via the Saudi and UAE pipelines. The remaining volume transiting Hormuz depends on a fleet of AIS-dark shuttle tankers — and that fleet is finite. Unlike oil production, which can be ramped at will, tankers cannot be built overnight. Chris Beauchamp, chief market analyst at IG Group, told Al Jazeera: “Ships don’t get built overnight.”

Iran Knows Where the Seam Is

The timing of the current attack surge is not coincidental. Iran‘s forces have access to AIS tracking data — the same commercial satellite and vessel-monitoring infrastructure that Kpler, Windward AI, and Marisks use — and can identify when and where shuttle tankers are transiting. Each successful strike removes a vessel from the available shuttle pool: through damage, through insurance cancellation, or through crew refusal to return.

At least one attack daily has been recorded by UKMTO in or near the Strait of Hormuz or the Gulf of Aden since October 2. In total, nearly 20 commercial vessels have been targeted during this period.

Original Article: Iran Strikes Hormuz Tankers Daily as Gulf Oil Exports Reached Pre-War Levels — Techtimes