Data from a maritime intelligence company indicates a significant increase in ship passage through the Strait of Hormuz. Recent reports highlight that Iran is permitting a growing number of commercial vessels to navigate this critical waterway. The automatic identification systems used by vessels revealed eight ships transiting the strait that do not carry the Iranian flag, as reported on March 18, 2026.
Increase in Transit Numbers
The number of vessel transits has nearly doubled in recent days, according to Windward. Michelle Wiese Bockmann, an analyst from the company, noted that many ships are rerouting through Iranian waters. This suggests that Tehran is implementing “permission-based transits” for what it considers friendly countries.
While Western-affiliated vessels may be hesitant to enter Iranian waters, ships from countries like China and India seem to be more willing to do so. MarineTraffic, another ship tracking service, recorded nine vessel transits on both Sunday and Monday, a rise from just five in the earlier days.
Impact of Military Tensions
The Strait of Hormuz is a crucial passage for approximately 20% of the world’s oil supply. However, traffic has plunged over 95% since the escalation of hostilities involving the United States and Israel against Iran. Non-Iranian vessels, primarily those flagged from China, India, and Pakistan, have diminished to single-digit transits, prompted by Iranian threats against shipping in the region.
As a result, oil prices have surged above $100 per barrel, marking a more than 40% increase since the conflict began.
Iran’s Stance on Shipping
Tehran’s messages regarding the strait’s accessibility have been mixed. Iranian Foreign Minister Abbas Araghchi stated that the waterway remains “open, but closed to our enemies.” A spokesperson for the Islamic Revolutionary Guard Corps had previously warned that any unauthorized vessels attempting to navigate the strait could face severe consequences.
International Responses
The geopolitical climate surrounding the Strait of Hormuz continues to evolve. U.S. President Donald Trump commented that the United States is capable of ensuring the security of shipping traffic without requiring support from other nations. He expressed frustration with NATO allies for rejecting proposals to deploy an international coalition to patrol the strait.
In a direct response to the threats posed by Iran, U.S. Central Command reported that it had conducted airstrikes on Iranian missile sites close to the strait. These sites were deemed a threat to international shipping, particularly due to the anti-ship cruise missiles they housed.
- Number of vessels in transit: 8 (excluding Iranian-flagged ships)
- Recent vessel transits recorded: 9 on Sunday and Monday
- Oil price surge: Over $100 per barrel, a rise of 40%
The situation in the Strait of Hormuz remains precarious as Tehran seeks to balance its maritime strategy amid increasing international scrutiny.
