Iran claims sole control of Hormuz, threatening planned US talks after Gulf strikes

Executive Summary

Iran's insistence on maintaining unilateral control of the Strait of Hormuz contradicts the June 17 memorandum of understanding with the United States and creates an immediate threat to planned diplomatic talks. Tehran claims sovereignty over the Strait of Hormuz rests with Iran and Oman and that traffic through the strategic waterway is governed by arrangements specified by Iran. Weekend strikes from both sides, followed by a temporary stand-down, expose how fragile the ceasefire framework has become. The central dispute centers on Iran's toll demands, its insistence on vessel coordination through Iranian-controlled routes, and contradictory international agreements over maritime access that pit Iran against the U.S.-aligned Gulf states and global shipping interests. Without resolution of these competing Hormuz control claims, the 60-day negotiation window risks collapsing entirely.

The Toll Demand As A Negotiating Lever

Capability without confirmed intent: Iran has demonstrated the operational capacity to interdict shipping, coordinate vessel movements, and enforce tolling through IRGC Navy patrols and issued warnings. What remains contested is whether Iran's toll demand represents a permanent strategic position or a negotiating gambit that could be withdrawn in exchange for sanctions relief and recognition of Iranian maritime authority. Security analysts assess that Iran may be reluctant to give up this strategic leverage. However, if Iran cannot use its chokehold on the strait to reinforce its position or charge countries for supplies, it really weakens its position as it goes into negotiating the terms of this agreement.

The toll issue compresses multiple Iranian objectives into a single demand: formal recognition as the strait's de facto manager, revenue generation to offset sanctions losses, and a lever to deter U.S. military action. But the mechanism is also Tehran's most vulnerable pressure point, any imposed toll will trigger immediate U.S. strikes and force Global maritime insurers to blacklist Iranian waters, making the toll system economically unworkable.

Why Doha Talks Face A Structural Impasse

Iran's chief negotiator, Mohammad Baqer Ghalibaf, said Tehran will not enter any further negotiations with the U.S. until the terms of a memorandum of understanding (MOU) have been implemented. This demand creates a logical loop: the MOU cannot be fully implemented without agreement on Hormuz control, yet Iran refuses to negotiate the Hormuz terms until the MOU is implemented. The U.S. has rejected this framing and continues technical-level discussions in Doha.

Sticking points remain: nuclear terms, sanctions timing, and ceasefire violations. The interplay between military compliance and diplomatic momentum compounds the Hormuz dispute. Each IRGC harassment of vessels or U.S. retaliatory strike resets the ceasefire clock and deepens suspicion that neither side intends good-faith compliance with the MOU's core promise: immediate strait reopening.

The Oman Problem

Oman occupies a critical but contradictory position. During a trip to Muscat, the first meeting of the Joint Hormuz Committee was held, and while reviewing the current issues related to the strait, they exchanged views on the future management. Yet Oman has also coordinated with the IMO on alternative southern routes that deliberately bypass Iranian-controlled waters, a move Iran explicitly warned against. The U.S. has encouraged ships to use the Omani route, while Iran insists that all vessels must seek its permission before transiting the strait, and use the route closer to its coastline.

Oman's dual role, serving simultaneously as Iran's treaty partner for strait management and as a cooperating state in international shipping corridors, creates competing loyalties. If Oman formally agrees to Iran's management scheme, it may trigger U.S. sanctions and undermine the IMO initiative that Western states are building. If Oman supports the U.S.-IMO approach, Iran will view it as betrayal.

Counterarguments

1. Iran's toll demand may be strategic theater, not endgame policy. Critics of the threat-assessment above argue that Iran's toll demands serve a negotiating function and will be withdrawn in exchange for sanctions relief and international recognition of Iranian maritime authority. The 60-day waiver period, rather than an immediate toll collection system, suggests Iran is testing Western appetite for fees rather than committing to permanent tolling. Under this reading, Iran's public insistence on Hormuz control masks a willingness to accept joint management with Oman and international observers, provided Tehran receives economic concessions and security guarantees. This interpretation rests on the assumption that Iran's economic desperation (sanctions-driven GDP contraction, currency devaluation) will force pragmatism. However, evidence shows that Iran has maintained toll-like arrangements informally (selective vessel approval, negotiated transit fees) throughout the conflict, suggesting normalization of tolling rather than temporary posturing.

2. The U.S. lacks a credible military option to force strait opening. Retired Admiral Murrett told Newsweek that the quantity of vessels that transit the waterway meant "there's no real military solution to keeping the Strait open," adding "there's going to have to be some diplomatic agreement with the Iranians." This argument contends that U.S. threats to strike Iranian infrastructure ring hollow because sustained military action against an already-warring Iran would devastate global energy markets, harm the U.S. economy short-term, and alienate both Gulf allies (exhausted by four months of war) and European partners (focused on sanctions coordination). Under this reading, Iran has already defeated the military option; all that remains is negotiation. Yet Trump has explicitly threatened to "complete the job" if Iran does not relent on Hormuz control. The credibility question turns on whether Trump perceives political cost from another escalation phase.

3. A de facto tolling system may already be operating without formal announcement. Shipping and insurance data suggest that vessels are already paying informal protection fees, coordinating with IRGC, and accepting routing through Iranian-preferred channels. If de facto tolling is already normalized in practice, then the "60-day deadline" debate becomes academic, Iran may already have achieved the economic outcome of tolls without the political friction of formal announcement. This would explain why some shipping has resumed (vessels willing to accommodate Iranian preferences) while others remain blocked (those refusing to pay or coordinate). If this is true, then the public negotiations in Doha are posturing, and the actual control structure has already shifted to Iranian hands.

Indicators To Watch

Decision Relevance

Scenario A (55% likelihood): Negotiations continue on Hormuz management but tolling question deferred past 60-day window. Both sides claim progress, technical teams produce a framework memo on joint Iran-Oman-international management, and the 60-day deadline passes without formal toll system activation. Iran continues informal vessel coordination and selective passage; the U.S. maintains its counter-blockade on Iranian ports; shipping remains at 30-40% of pre-war levels. Recommendation: If you have supply-chain exposure to Persian Gulf energy or petrochemical imports, maintain dual-sourcing and hedged diversification through alternative transport routes (Saudi Arabia's Red Sea pipeline, Russia LNG, non-Gulf producers). Do not commit to long-term Gulf sourcing until clarity on tolling emerges post-August. If you lack direct Gulf exposure, monitor tanker insurance premiums as the bellwether indicator of market confidence in strait stability; premiums rising above 5% signal deal failure.

Scenario B (30% likelihood): Iran formally declares toll system; U.S. responds with strikes on IRGC facilities; ceasefire collapses into renewed war phase. Post-July 20, Iran announces a permanent "maritime service fee" framework (framed as consistent with UNCLOS EEZ authority, though legally contested); vessel interdictions increase; insurance markets freeze; shipping halts again. U.S. launches air campaign against IRGC Navy bases and radar/command nodes in the Gulf; Iran responds with drone swarms at U.S. bases in Bahrain, Kuwait, UAE; Gulf states issue neutrality statements but allow U.S. access. Recommendation: If you have operational facilities, supply contracts, or personnel in the Gulf Cooperation Council states, activate crisis protocols and accelerate evacuation of non-essential staff immediately upon public announcement of toll system. If you are a financial market participant, recognize this scenario as equivalent to a 15-30% energy price shock ($110-120/barrel Brent) and position hedges accordingly. Do not wait for U.S. strikes to adjust exposure.

Scenario C (15% likelihood): Breakthrough diplomatic agreement on joint Iranian-Omani-international management, with Iran accepting monitoring framework in exchange for sanctions relief and recognition. Both sides claim victory; Iran achieves formal recognition of maritime authority; international community establishes demining operation; shipping volumes rise to 50-60% of pre-war levels over 6-8 weeks. Sanctions relief begins; reconstruction discussions accelerate. Recommendation: If you have been deferring Gulf investment or long-term sourcing decisions, this scenario opens a 60-90 day re-entry window during which political risk premiums compress and long-term contract pricing improves. Begin pre-positioning diligence and supplier vetting now to move quickly once framework is announced. If you are evaluating energy-intensive operations in Asia, use this window to lock in multi-year Gulf LNG contracts before price normalization occurs.

• Satellite and signals intelligence on IRGC vessel movements is restricted. Public reporting relies on AIS (Automatic Identification System) data, which vessels can spoof, and on military communiqués that both sides weaponize. Actual patrol densities and toll-collection enforcement rates are inferred from sporadic incident reports, not continuous monitoring. A higher frequency of interdictions could indicate tolling is operational, or merely reflect increased reporting; the distinction is difficult without ISR confirmation.

• Iranian elite decision-making is opaque. Competing statements from IRGC, Foreign Ministry, negotiating teams, and Majlis (parliament) on Hormuz control reflect genuine institutional disagreement, not coordinated messaging. It is unclear whether Ghalibaf's insistence on MOU implementation represents Iran's final position or a negotiating anchor. Supreme Leader Khamenei's actual preference on toll toleration vs. diplomatic compromise remains undisclosed.

• Oman's private bilateral agreements with Iran and the U.S. are not publicly available. Oman's decision to host both the Joint Hormuz Committee and the IMO demining initiative creates a legal and political contradiction that must be resolved, but the terms of that resolution remain secret. Public statements from Omani officials are cautious and non-committal. If Oman has already privately agreed to endorse Iran's management scheme (or conversely, to support the U.S.-IMO route), the public Doha negotiations are theater masking a fait accompli.

• The Lebanon ceasefire is a parallel variable that could decouple from Hormuz progress at any moment. Israel's continued strikes and the Hezbollah leadership's rejection of disarmament create an autonomous escalation trigger. A major Israeli operation in southern Lebanon or Hezbollah rocket barrage in the next 7-10 days would force Iran to respond (and invoke Hormuz closure) regardless of Doha progress. The analysis above assumes Lebanon and Hormuz remain linked; decoupling would fundamentally alter the negotiating pressure.

• Private shipping industry decisions on risk tolerance are not indexed to official policy statements. Some shippers are already adapting to Iranian control by paying informal fees and coordinating with IRGC; others are avoiding the strait entirely. The aggregate data on "strait closure" masks this heterogeneity. Full normalization of private tolling could occur without formal government agreement, and the U.S. could lose leverage if the private sector treats Iranian control as an operational fact rather than a contested claim.