What specific military actions did the US and Iran take against each other’s oil tankers on 5–6 September, and what were the reported consequences?

On 5 September, US forces struck three Iranian oil tankers — the Suezmax tanker Kylo (which sank in the Gulf of Oman), the Suezmax tanker Stark I (disabled), and the very large crude carrier (VLCC) Downy (hit near Kharg Island, Iran’s main crude export hub) — following an IRGC ballistic missile attack on two US Navy warships; CENTCOM confirmed these strikes on 6 September. Iran claimed it had targeted three tankers, but its claims remain unverified by independent maritime bodies or US authorities.

What new maritime restrictions is Iran planning near the Strait of Hormuz, and how might they affect international shipping?

Iran’s Supreme National Security Council secretary Mohsen Rezaei announced on 6 September that Tehran plans to establish a new restricted zone near the Strait of Hormuz, beginning at the US Navy’s blockade line and extending into parts of the Persian Gulf, where any vessel entering would be placed on Iran’s sanctions list; additionally, Iran and Oman plan to sign an agreement for a new shipping corridor through Hormuz with entry and exit points under Iranian control, increasing Tehran’s oversight of vessel traffic.

Oil Prices Rise on Concerns Over Escalation of US-Iran Hostilities

Sep 7, 2026

Oil prices edged higher after US strikes on Iranian tankers and Tehran's plan to tighten control over the Strait of Hormuz raised fears of prolonged trade disruptions, while OPEC+ deferred further output decisions.

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