Araghchi Ties Hormuz to Expired Ceasefire as Oman Mediation Stalls

Iran’s Foreign Minister Abbas Araghchi said on September 13 that Tehran will not allow the Strait of Hormuz to reopen to commercial shipping until the United States honors its obligations under the Islamabad Memorandum of Understanding — a ceasefire framework that both governments had publicly abandoned weeks earlier.

The statement came as Oman’s latest effort to broker a separate, narrower transit agreement between Iran and the Gulf Cooperation Council collapsed on the eve of the scheduled meeting, stripping the crisis of one of its last functioning diplomatic channels.

The Demand

Araghchi’s September 13 statement explicitly linked Hormuz transit to American compliance with a document the Trump administration has formally discarded. The Islamabad Memorandum, signed by both presidents on June 17, mandated a temporary ceasefire, the clearing of Hormuz mines, and the reopening of the Strait to commercial traffic. In exchange, the United States agreed to lift sanctions, end its naval blockade, issue waivers for Iranian oil exports, and begin work on a reconstruction package for Tehran.

The 60-day negotiating window expired on August 17. The deal had been considered defunct well before that date. On July 18, Iran’s Deputy Foreign Minister Kazem Gharibabadi announced the suspension of Iran’s commitments, citing alleged U.S. breaches. On August 18, President Trump ordered U.S. envoys to halt contacts. On September 2, Trump dismissed any prospect of a new deal, warning Iran would face significantly heavier strikes if it chose further retaliation.

Araghchi’s statement nonetheless demands that Washington return to those obligations as a precondition for transit discussions — invoking a framework the U.S. considers void.

Pezeshkian’s Unanswered Offer

Iran’s signaling has followed a consistent pattern since September 1, when President Masoud Pezeshkian spoke at the Shanghai Cooperation Organization summit in Kyrgyzstan. Hours after a fresh exchange of fire in the Strait, Pezeshkian said Iran would “immediately reciprocate” if the United States returned to its MoU commitments.

That offer has not received a substantive public response from Washington. The Trump administration’s posture has moved in the opposite direction since August.

The practical effect of the Araghchi-Pezeshkian framing is to position the MoU not as a dead letter but as a baseline whose alleged violation by the United States justifies Iran’s continued closure of the Strait — while simultaneously presenting a stated path back if Washington acts first. It forecloses third-party pressure: Tehran’s message is that the path to reopening runs through Washington rather than through multilateral mechanisms.

The Oman Track Collapses

Oman had convened a ministerial-level meeting in Salalah involving Iran and all six GCC states to discuss commercial shipping corridor arrangements for the Strait. The meeting was postponed on its eve with no new date announced, according to reporting by CBS News and the Washington Times.

Two specific objections drove the collapse. Saudi Arabia refused to accept proposed amendments to an Iran-Oman corridor arrangement that would have created a dedicated transit lane for GCC-flagged cargo. Bahrain declined to participate at all. With two of the six GCC member states unwilling to engage, Oman could not convene a credible multilateral session.

The Salalah format was not a ceasefire negotiation. It was a narrower technical track intended to establish agreed rules governing which vessels could transit and under what conditions — a limited workaround to the broader political deadlock. Its failure removes that workaround as well.

Three Dead Tracks

Three diplomatic frameworks are now either expired or inactive. The Islamabad MoU was disavowed by Iran in July and by the United States in August. The Oman-mediated GCC corridor channel was suspended indefinitely this week. The U.S.-Iran bilateral back-channel was shut down by Trump’s August 18 directive.

No new framework has been publicly proposed by either government. Pezeshkian’s September 1 conditional offer remains the last unrejected diplomatic opening, conditioned on U.S. compliance with an agreement Washington considers void.

Market and Strategic Context

Brent crude has held above $100 a barrel for consecutive sessions, with the Oman ministerial collapse adding to upward price pressure. Strait transit volumes remain near historic lows, running at roughly 6 vessels per day against a pre-war daily average of approximately 85.

The IAEA separately reported this week that it cannot verify the size or location of Iran’s enriched-uranium stockpile, having been denied access to nuclear facilities since the June 2025 strikes. That unresolved verification gap adds a second layer of pressure to any eventual diplomatic process, though Araghchi’s statement addressed Hormuz transit conditions rather than nuclear oversight.

Military activity near the Strait has continued in parallel. IRGC forces have claimed drone operations near Hormuz in the past 48 hours, and a supertanker remains stalled following a mine incident that CENTCOM attributed to Iranian forces. The combination of expired frameworks, collapsed multilateral tracks, and continued military incidents leaves no clear near-term path to resumed commercial shipping through the world’s most critical oil chokepoint.