Iranian Ship Attacks in Hormuz Push War-Risk Insurance Back Toward Crisis Levels
Iran struck three commercial vessels in the Strait of Hormuz on Tuesday as the collapse of peace talks with the United States forces underwriters to reassess cover for Gulf shipping.
Iran struck three commercial vessels in the Strait of Hormuz on Tuesday (2026-07-07), the most direct attacks on international shipping since peace negotiations with the United States began unraveling, shipping sources told Montel on Wednesday (2026-07-09). War-risk insurance premiums, already elevated since the conflict began in late February, could climb further as underwriters reassess the threat environment for the world's most consequential energy chokepoint.5
The attacks came after U.S. President Donald Trump declared on Wednesday (2026-07-08) that the ceasefire deal with Iran was finished and vowed renewed military strikes, ending a tentative peace arrangement barely a month after it was signed. Oil prices spiked on the news. ICE Brent crude front-month traded at $75.90 as of Thursday (2026-07-09), with WTI at $71.86.6
The Strait of Hormuz carried roughly 20 percent of global LNG supply before the conflict erupted on 28 February. Laden LNG transits have since come to an effective halt, forcing cargoes bound for Asia onto far longer alternative passages that add voyage days and freight costs directly feeding into delivered prices.2
Shipping sources speaking to Montel said the renewed attacks risked reducing transshipments further and prompting carriers to reassess whether the chokepoint remains navigable at any premium. The concern runs beyond hull damage: war-risk cover must remain available at a rate that keeps voyages economical, and some underwriters moved to restrict or price out Gulf exposure even during the brief ceasefire window. In April (2026-04-22), analysts had described the market as fragile even while a ceasefire extension was being discussed, with reports of vessels being seized by Iranian military forces.4
Supertankers capable of carrying 2 million barrels each had periodically tested the passage during the ceasefire. Three vessels cleared the strait in late May (2026-05-20), and Malaysia sought Iranian clearance for seven ships, including the Serifos chartered by Thai state energy firm PTT, according to data from LSEG and analytics firm Kpler.3
Those transits now look like outliers. Analysts told Montel in May (2026-05-21) that further laden LNG crossings were unlikely absent an effective regional ceasefire, a judgment that now looks well-founded given the collapse of negotiations. LNG vessels were already avoiding Hormuz out of fear of being caught in the crossfire, while obtaining insurance had become, in the words of analysts at the time, trickier.1,2
The disruption is feeding secondary anxiety at the Strait of Malacca. With Hormuz curtailed, cargoes rerouted eastward through Malacca have added pressure to a waterway that already handles up to 30 percent of globally traded goods and close to half the world's seaborne oil. China depends on Malacca for around 80 percent of its oil imports, and analysts are now watching whether sustained Hormuz disruption generates explicit transit restrictions or fee demands at Malacca — a copycat risk flagged by OilPrice.com on Thursday (2026-07-09).6
For Asian LNG buyers, the renewed escalation arrives with JKM, the benchmark for spot LNG delivered to northeast Asia, at $16.57 per million BTU as of Thursday (2026-07-09). Supply diversion and freight cost inflation have been a persistent upward force on the Asian spot market since February.5
The immediate test for underwriters is how rapidly they revise war-risk schedules following confirmed attacks on commercial shipping. The Tuesday (2026-07-07) incidents provide exactly that trigger. Shipping brokers will be watching what premium levels carriers demand before loading the next Gulf cargo, and whether buyers in Japan, South Korea and China are prepared to absorb the additional cost or pivot further toward Atlantic Basin supply.5