Iranian forces (primarily the IRGC Navy) have intensified attacks on commercial vessels, claiming responsibility for targeting ships linked to the US, Israel, or allies. Key incidents include:
- Two oil tankers struck in Iraqi territorial waters near Basra late on March 11: the Marshall Islands-flagged Safesea Vishnu (US-owned crude oil tanker) and the Malta-flagged Zefyros (Greek-owned, carrying condensate/naphtha). Attacks involved explosive-laden boats or underwater drones, causing fires, one confirmed death (an Indian crew member on Safesea Vishnu), dozens injured/rescued (at least 37-38 reported), and evacuations. Iraq's major oil export terminals (e.g., near Basra, Khor Al-Zubair) have fully suspended operations due to the risks.
- At least 3-6 additional vessels hit in the Strait of Hormuz and nearby Gulf waters on March 11, including the Thai-flagged Mayuree Naree (cargo ship engulfed in flames, crew evacuated after projectile strike), Express Room (Liberian-flagged container ship), and others struck by projectiles, drones, or unmanned surface vessels. Iran’s IRGC stated some ships ignored warnings.
- Broader tally: Over a dozen ships attacked since the war began (late February/early March 2026), with reports of Iranian sea mines (about a dozen deployed) and explosive drone boats making the strait highly unsafe. Traffic has plummeted to near-zero, effectively sealing the chokepoint (which normally carries ~20% of global oil).

- The International Energy Agency (IEA) announced on March 11 a historic coordinated release of 400 million barrels from emergency reserves across its 32 member countries (largest ever, surpassing prior actions like 2022). This aims to offset supply fears and stabilize markets, though full delivery will take weeks/months.
- The US leads with 172 million barrels from its Strategic Petroleum Reserve (SPR), starting next week over ~120 days (per US Department of Energy).
- Gulf producers (Saudi Arabia, UAE, Kuwait, Iraq) have sharply cut output (millions of barrels/day in some cases) due to export blockages and overflowing storage. Limited rerouting via Red Sea pipelines helps minimally.
- Brent crude hovered around $96-100+ per barrel today (spiking above $100 briefly, up ~5-8% in recent sessions amid fresh attacks).
- WTI near $90-93.
- Traders cite ongoing war risks outweighing reserve releases; Iran has warned of potential $200+ if disruptions persist.
All details are based on reports from credible sources including Reuters, Bloomberg, Al Jazeera, CNN, New York Times, BBC, IEA official statements, US Department of Energy, UKMTO, and maritime tracking authorities.
