Threats to oil shipping in the Middle East have reached their most severe point since the Iran war began, driven by a coordinated wave of attacks across the Strait of Hormuz, the Red Sea, and the Mediterranean. Ship-tracking firm Kpler reports that the number of vessels transiting the Strait of Hormuz fell to eight on a recent Sunday and eleven the preceding Saturday — a collapse from more than 100 per day before the conflict erupted. Before the war, roughly 20% of the world's oil and gas passed through that strait. Matthew Wright, an analyst at Kpler, assessed the threat to crude oil trade as being at its worst period since the Iran crisis began BBC.

The shipping crisis has tracked diplomatic fluctuations closely. A temporary peace deal between Iran and the United States in early June briefly revived traffic through Hormuz. When strikes between the two countries resumed roughly a month later, transit numbers fell again. Many ships crossing Hormuz have turned off their transponders — the onboard tracking devices that broadcast a vessel's location — to avoid detection, a practice known in the industry as "going dark." During much of the war, some Saudi oil shipments rerouted through an alternative lane in the Red Sea between the kingdom and West Africa. Recent attacks by Yemen's Houthi fighters on Saudi tankers using that alternative waterway have further raised the risk.

Tehran has denied US President Donald Trump's claim that Iran is in talks with Washington over reopening the Strait of Hormuz. Iran stated it is instead speaking with Oman about securing the shipping lane BBC. In May 2026, Iran warned that any attack on Iranian tankers and commercial vessels would trigger a heavy attack on an American centre in the region and on enemy ships The Guardian. The United States revoked a license allowing Iran to sell oil after three tankers were hit by projectiles Reuters.

Military activity has accelerated across multiple chokepoints — narrow stretches of water where ships are funneled through a limited passage. The UK Maritime Trade Operations (UKMTO) office reported a tanker struck by a projectile on its port side while moving southbound about 8 nautical miles into the Strait of Hormuz Al Jazeera. A drone also struck an LNG (liquefied natural gas) tanker in Hormuz. Iranian cruise missiles hit two Emirati oil tankers, the Mombasa and Al Bahiyah, while they transited the southern lane in Omani waters Reuters. As of July 14, 2026, Iran had attacked three or more commercial vessels in the Strait of Hormuz within a 24-hour window, confirming its sustained capability to disrupt commercial shipping ISW.

UKMTO advisories detail a persistent rhythm of incidents. WARNING 086-26, dated July 14, 2026, reported a tanker hit by a missile while transiting outbound on the southern route. WARNING 101-26, published August 1, reported an attack on a tanker 11 nautical miles northeast of Lima, Oman, with the chief security officer confirming a projectile strike. WARNING 102-26, also published August 1, reported an attack with an incident date of July 31. Update 079 to the JMIC Advisory Note, dated August 2, 2026, reported an LNG tanker struck by a projectile with no environmental impact.

The geographic scope of the threat has expanded beyond the Persian Gulf. Attacks on ships in the Strait of Hormuz and the Bab al-Mandab Strait are disrupting the passage of oil tankers in both the Persian Gulf and the Red Sea NYT. Two tankers laden with Saudi oil crossed the Bab el-Mandeb strait over the weekend of August 1-2, even as traffic in Hormuz slowed Reuters. Egypt confirmed a drone caused a fire on two gas vessels at the Mediterranean port of Damietta Reuters. That strike raised a new threat to shipping through the Suez Canal Reuters.

The broader context here is that the compounding attacks across three critical maritime corridors — Hormuz, Bab al-Mandeb, and the approaches to the Suez Canal — suggest a deliberate strategy to deny safe passage across multiple rerouting options. When the Red Sea alternative came under Houthi fire, the Mediterranean port at Damietta was also hit. The operational effect is a near-total compression of viable tanker routes, forcing vessel operators to choose between transponders-off dark transits through hostile waters or prolonged rerouting that removes capacity from the global market. Iran's parallel diplomatic track with Muscat, while rejecting Washington's reopening claims, suggests Tehran may be calibrating pressure to extract concessions rather than seeking total closure of the waterway. The revocation of Iran's oil sales license by the US, however, narrows the diplomatic runway for a ceasefire-style arrangement akin to the June deal. With Hormuz traffic at single digits and three chokepoints simultaneously active, the margin for error in crude supply logistics has effectively vanished.