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Jun 18, 20261
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US Lifts Blockade of Iran's Seaports Following Memorandum of Understanding
US Vice President JD Vance announced that the United States has lifted its blockade of Iran's seaports following the signing of a memorandum of understanding between Washington and Tehran aimed at ending their conflict. The agreement allows merchant ships to pass through the Strait of Hormuz, with 12.5 million barrels of oil already transported since its signing.
Quick Facts
Who
JD Vance
What
US lifts blockade of Iran's seaports
When
Thursday
Where
Strait of Hormuz
- US lifts blockade of Iran's seaports
- Memorandum of understanding signed
- Merchant ships permitted to transit Strait of Hormuz
- Iran refrains from attacking ships
- Oil transported through Strait
The United States has effectively lifted its blockade of Iran's seaports as part of a memorandum of understanding signed on Thursday aimed at ending the conflict between the two nations, US Vice President JD Vance announced. The agreement allows merchant ships to transit the Strait of Hormuz without interference, with the US Central Command (CENTCOM) permitting a dozen vessels to pass through the naval blockade.
Vance highlighted Iran's commitment to the accord, noting that Iranian forces refrained from attacking ships for the second consecutive night. He emphasized that the United States is honoring its obligations under the early provisions of the agreement. According to Vance, 12.5 million barrels of oil have already been transported through the Strait of Hormuz since the memorandum was signed, demonstrating the practical impact of the arrangement.
The move represents a significant de-escalation of tensions in the Middle East and signals a shift in US-Iran relations. The agreement addresses longstanding concerns over maritime security in one of the world's most critical shipping routes, through which much of global oil trade transits. The successful initial implementation of the memorandum, with both sides adhering to their commitments, suggests a potential pathway toward broader resolution of the conflict.
Why This Matters
This agreement marks a major de-escalation in US-Iran tensions and has immediate practical consequences for global oil markets and maritime commerce. The lifting of the blockade restores critical shipping routes through the Strait of Hormuz, which handles roughly 30% of world seaborne oil trade. For businesses, investors, and energy consumers, this signals reduced geopolitical risk, lower potential oil price volatility, and improved predictability in Middle Eastern operations—with tangible proof already demonstrated through the 12.5 million barrels transported since the agreement's signing.
Timeline & Sources
Jun 18, 2026
WireMemorandum of understanding between US and Iran signed
Jun 18, 2026
WireCENTCOM allows a dozen merchant ships through the naval blockade
Jun 18, 2026
WireIran refrains from attacking ships for the second consecutive night
Jun 18, 2026
WireJD Vance announces lifting of US blockade of Iran's seaports