By Maria Mavroudi, Founding Partner, Searock Marine Insurance Brokers
The latest escalation in the Middle East following US and Israeli strikes on Iran has once again demonstrated how rapidly geopolitical tension can transform into an operational and insurance crisis.
Iranian naval warnings prohibiting commercial passage through the Strait of Hormuz have not been accompanied by a formally recognized international closure. Yet in practical terms, commercial shipping activity has slowed to a near standstill. In today’s interconnected maritime economy, perception of risk — particularly when reinforced by direct attacks — can be as powerful as formal blockade.
A Market That Reacted Before Governments Did
The speed of the commercial response has been striking. Leading container operators, including Maersk, Hapag-Lloyd and CMA CGM, have suspended Hormuz transits until further notice, rerouting vessels and directing ships to safe anchorages. MSC has instructed vessels to designated shelters and paused cargo bookings to the Middle East.
Japanese operators, including NYK Line, Mitsui O.S.K. Lines and Kawasaki Kisen Kaisha have similarly halted Hormuz operations.
Traffic Collapse: Hard Data
Independent ship-tracking data indicates:
- Approximately 70% drop in overall vessel traffic through the Strait as of late Saturday
- 40–50% reduction in activity within main shipping lanes by Sunday
- At least 150 crude and LNG tankers anchored in open Gulf waters beyond the strait
Clusters of anchored vessels have formed off the UAE, Saudi Arabia, Qatar and other regional ports. Although not subject to a universally recognized blockade, commercial operations have effectively paused due to the combined impact of security threats and insurance market withdrawal. The interruption is not symbolic; it is systemic.
Insurance Market Reaction
Parallel to operational suspensions, the war risk market has moved decisively:
- The Joint War Committee has updated Listed Areas (JWLA-033).
- Clubs have issued 72-hour Notices of Cancellation for certain non-mutual war risks covers within the Persian/Arabian Gulf and Gulf of Oman.
- Reinsurer action has directly triggered these cancellations.
While mutual P&I entries remain unaffected at present, non-mutual covers, including Charterers’ Liability, Fixed Premium P&I and non-poolable extensions, face automatic termination for exposures arising within the defined areas upon expiry of the 72-hour notice.
Additional Premiums have spiked sharply, with rates fluctuating daily.
Where war risk cover is cancelled or materially restricted:
- Charterparty allocations become immediately relevant
- Financing covenants may be tested
- Deviation and delay exposures multiply
- Energy supply chains feel secondary pricing effects
In other words, the event migrates from geopolitical to contractual and financial.
Should tensions persist, we may see sustained freight volatility, prolonged Cape rerouting, increased bunker demand and secondary insurance market hardening.
Commercial Pause Without Formal Closure
It is important to underline: the Strait is not subject to a universally recognized blockade.
However, commercial shipping does not operate solely on legal definitions. It operates on risk tolerance, crew safety considerations, insurance capacity and asset protection. When these pillars are destabilized simultaneously, operations pause, even absent formal prohibition.
The combination of direct attacks, Iranian warnings and insurer retrenchment has effectively created a de facto suspension environment.
What Owners and Charterers Must Do Now
In this environment, operators should:
- Confirm the precise status of their war risks coverage (mutual vs non-mutual exposure).
- Review charterparty war risk clauses and Additional Premium allocation.
- Obtain written underwriter confirmation before entering any listed or potentially listed waters.
- Closely monitor voyage deviation implications and sanctions compliance considerations.
Early engagement with underwriters is proving decisive in securing clarity and, where possible, reinstatement solutions.
Periods such as this reinforce the importance of proactive advisory dialogue between owners, charterers, financiers and insurers. In volatile environments, certainty of cover becomes as strategically important as cargo itself.
The Strait of Hormuz may reopen to regular traffic quickly or it may not. What is clear is that geopolitical escalation now translates into insurance consequence within hours, not weeks. If the current trajectory continues, the industry must be prepared for a widening of affected trading areas as insurers and reinsurers reassess regional exposure beyond the immediate flashpoint.
What we are witnessing is not merely a temporary disruption in a single chokepoint, but a structural shift in how maritime risk is priced, transferred and ultimately tolerated. Strategic risk management, clarity of cover and proactive engagement with underwriters are no longer procedural matters — they are central to commercial resilience.
In the end, ships do not sail on headlines; they sail on insurance certainty.
