Iranian tankers recently sailed through Strait of Hormuz despite US blockade

What Happened

At least three Iranian tankers—Hero II, Diona, and Sonia I—carrying a combined 5 million barrels of oil sailed through the US naval blockade in the Strait of Hormuz this week, according to ship-tracking data from Kpler, Vortexa, and LSEG. The movement occurred despite the US military stating its operations against Iran-linked shipping would remain in place until Friday, June 19. Iranian-flagged dry bulk and container ships that had been anchored off Malaysia's coast are also returning toward Iran, per analysis by United Against Nuclear Iran (UANI). US President Donald Trump announced on his Truth Social platform on June 14 that a deal with the Islamic Republic of Iran was complete, with a memorandum of understanding set to be signed on Friday that would allow Iran to immediately resume oil and fuel sales, a senior US official confirmed. Iran's deputy foreign minister said a more expansive agreement would be negotiated during a 60-day ceasefire period.

Key Actors

Why It Matters

The tanker movements and the pending deal signal a possible de-escalation in US-Iran economic warfare, directly impacting global oil markets—Brent crude dropped below $80 per barrel on the news. The Strait of Hormuz, a critical chokepoint, remains volatile; a formal reopening could restore Iran's exports and ease energy prices, but safe passage must still be proven. The episode highlights the fragility of unilateral US enforcement and Iranian defiance, with implications for the nuclear standoff and regional proxy dynamics.

Watch For

The signing of the US-Iran deal on Friday, June 19, and concrete steps to lift the naval blockade. Expect announcements on verification of safe passage and the timeline for Iranian oil re-entering markets. Monitor China's crude purchasing response and any IAEA reports related to nuclear negotiations during the stated 60-day ceasefire period.