Ships crossing Hormuz use Oman passage despite Iran warnings Traffic levels in the Strait of Hormuz fell back from Wednesday's high, but vessels continued to use a non-Iranian-approved passage, despite a ship being struck by a projectile, tracking platforms showed on Friday. At least 42 commodity vessels - including tankers carrying oil, gas, and dry bulk such as fertilisers - crossed on Thursday, Kpler's tracking platform showed, down from a high of 57 on Wednesday. Ten of those vessels entered the Gulf, while 32 exited.