2026-03-18 05:21 • jwsmythe
Iran’s de facto blockade of the Strait of Hormuz has stoked fears of the gravest disruption to global oil supply in history, as the Middle East conflict stretches into its third week.
The blockade has squeezed shipping traffic to a trickle, with just 21 tankers transiting the route since the war began on Feb. 28, according to S&P Global Market Intelligence, compared to more than 100 ships daily before the conflict.
Most vessels appear to be holding positions outside Hormuz, with thousands of seafarers stranded aboard vessels in the Gulf. Some have explored a pivot to disperse to alternative ports.
Roughly 400 vessels were spotted operating in the Gulf of Oman, as a massive backlog of ships waited near the chokepoint, according to a report from maritime intelligence firm Windward on Sunday.
While Iran has kept a tight grip on the strait, a small number of other ships have made the crossing under varying circumstances, signaling that Tehran is selectively letting through some non-Iranian oil cargo in negotiated safe voyages, according to maritime analysts.