Limited tanker movements through the Strait of Hormuz have resumed, but mines, insurance costs and Iran’s proposed transit controls mean the crisis around the world’s most important energy chokepoint is far from over.
The Strait of Hormuz may be formally open again, but commercial shipping has not returned to normal. Tankers have begun moving through the waterway after the latest US-Iran agreement, yet maritime warnings, mine-clearance operations, insurance uncertainty and Iran’s proposed new transit rules continue to restrict confidence among shipowners and energy traders.
The reopening followed weeks of disruption to one of the world’s most important shipping routes. Around one fifth of globally traded oil and liquefied natural gas normally passes through the Strait of Hormuz, making any interruption a direct concern for energy markets, Gulf exporters, Asian importers and European consumers exposed to price volatility.
The immediate problem is physical security. Maritime traffic through the strait will not return to normal until mines are cleared and established shipping routes are restored, according to shipping industry assessments. Mine-clearance work is continuing, while vessels have been advised to expect congestion, naval presence and possible hailing by military forces supporting the movement of commercial shipping.
For shipowners, the political announcement of reopening is not the same as operational safety. Companies must decide whether to send vessels through a narrow waterway where mines, navigational interference and military activity remain active concerns. Insurers must make a similar judgement before war-risk premiums can return to levels that make routine transit economically viable.
This is why the first resumption of tanker movements should not be read as a full recovery. Oil shipments through Hormuz have increased, but traffic remains below pre-crisis levels and questions are growing over Iran’s transit terms. A few verified crossings can ease market pressure, but they do not automatically clear months of disruption, delayed cargoes, trapped vessels and uncertainty over loading schedules.
The shipping sector is also watching Iran’s position closely. Tehran has said it will waive fees for Hormuz during a 60-day negotiation period, but ships are still required to submit transit requests in advance and coordinate routes and passage times because of navigational risks. That arrangement, set out under the new passage procedures, raises legal and commercial questions because Hormuz is an international waterway.
If Iran tries to convert its position on the strait into a revenue or control mechanism, the result could be another source of confrontation even without renewed fighting. A temporary waiver may reduce immediate pressure on shipping, but it does not settle whether Tehran intends to impose fees, permits or insurance-related charges after the negotiation period ends.
The issue matters well beyond the Gulf. Europe does not rely on Hormuz to the same extent as some Asian economies, but it remains exposed to the price effects of disruption. Oil and LNG markets are global. Reduced confidence in Gulf transit can lift freight rates, increase insurance costs and affect energy prices even for buyers that receive supplies from elsewhere.
The crisis has also shown the limits of alternative routes. Saudi Arabia and the United Arab Emirates have pipeline and export infrastructure that can bypass Hormuz to some degree, but those routes cannot replace the full capacity of the strait. Kuwait, Qatar and other Gulf producers remain more directly dependent on safe passage through the waterway. For LNG, the strategic vulnerability is particularly acute because Qatar is one of the world’s largest exporters.
For governments, the reopening therefore presents a test of whether a diplomatic agreement can be translated into a functioning maritime regime. That requires mine clearance, transparent routing, credible security assurances, lower insurance costs and clear rules that are acceptable to the shipping industry. Without those conditions, Hormuz will remain open in legal and diplomatic terms but constrained in commercial reality.
The situation also has a military dimension. Naval forces will be expected to support clearance, escort, monitoring and deconfliction tasks while avoiding incidents that could trigger escalation. The risk is not only a deliberate attack. A mine strike, collision, mistaken hailing or misread military movement could be enough to unsettle markets and delay recovery.
For Iran, the strait remains a source of leverage. Control over the perception of risk can be almost as important as formal closure. If shipowners and insurers believe transit remains dangerous or legally uncertain, traffic can remain suppressed even when no official blockade is in place.
The reopening of Hormuz is therefore a partial relief, not the end of the crisis. It has reduced immediate pressure on oil markets and allowed some movement to resume, but the underlying vulnerabilities remain. The waterway is still narrow, militarised, politically contested and difficult to secure after months of tension.
The practical question now is not whether Hormuz is open. It is how many vessels are prepared to use it, at what cost, under whose rules, and with what level of protection. Until those questions are answered, the world’s most important energy chokepoint will remain a source of strategic and market risk.
