Middle East — 2026-06-19

US Ends Naval Blockade of Iran as 60-Day MoU Takes Effect

BLUFTehran's early signaling on post-window "service fees" indicates the 60-day toll-free transit arrangement will likely lapse without a successor framework by mid-August, handing Iran a monetizable chokepoint.

CENTCOM announced Thursday that all naval blockade enforcement has ceased, the fourth of 14 conditions in the memorandum of understanding Trump and Iranian President Pezeshkian signed Wednesday 123. The Combined Maritime Force's JMIC simultaneously downgraded the Hormuz threat level from critical to moderate, identified one confirmed mine and published safe-passageway coordinates, and directed mariners to the southern route through Omani waters while 30-day clearance operations continue 1. Vance told reporters Iran has not fired on ships for two consecutive nights, while Kpler confirmed approximately 6 million barrels aboard three Saudi tankers transited the strait 2. The MOU restricts toll-free Strait transit to 60 days, after which NPR reported Iranian officials have floated "service fees" that industry analysts called legally questionable on an international waterway 4.

Analysis
The toll-free transit window likely closes without a successor framework by mid-August. High confidence in that judgment reflects the breadth of what remains open on the same 60-day clock: sanctions disposition, enrichment accounting, and the $300 billion reconstruction fund. The PGSA retains information-collection authority on transiting vessels throughout the period, preserving Iranian leverage over strait administration independent of the MOU's diplomatic outcome. Tehran's service-fee signaling, flagged by legal analysts as inconsistent with international maritime law, positions Iran to monetize access if terms fail. If nuclear and sanctions resolution closes within 60 days, the fee threat collapses before it takes effect. Energy trading desks and tanker operators should price post-mid-August Hormuz passage as structurally unresolved and begin contracting alternative routing capacity before the window closes.

4 sources