Oil Tops $100 as Middle East Attacks and Iranian Shipping Restrictions Hit Supply Routes
Oil prices climbed past $100 a barrel for the first time in almost six weeks after attacks on oil facilities and ships in the Middle East, together with new Iranian restrictions on key sea lanes, raised the risk of wider supply disruption.
Oil markets are again having to price in war risk. Crude has pushed back above $100 a barrel after attacks on energy infrastructure and ships, combined with new Iranian limits on shipping, revived fears that tension around the Strait of Hormuz and nearby waters could trigger a broader supply shock.
On 9 September, benchmark prices rose past $100 for the first time in nearly six weeks. Traders were reacting to a cluster of threats: recent attacks on oil facilities and ships in the Middle East and a series of Iranian moves aimed at the seaborne routes that carry much of the world’s crude.
Iran has expanded a maritime restricted zone outward from the port of Chabahar into the Gulf of Oman and the northern Arabian Sea, threatening broader disruption to oil shipping. Tehran has also announced sanctions on ships passing through a restricted zone around the Strait of Hormuz, the narrow chokepoint through which a large share of global traded oil typically flows. It’s not yet clear how these sanctions will be enforced, but the signal is that vessels crossing Iranian-claimed areas could face legal pressure or physical interference.
Physical risks are rising alongside legal ones. Port officials say a Panama-flagged tanker carrying about 2 million barrels of Iraqi fuel oil was struck by a drone in Iraqi waters near the port of Basra in the Persian Gulf. Iraqi channels report that an Iranian unmanned aerial vehicle attacked a tanker called New Andrews in the same area, which they describe as American. Details on damage and casualties are still emerging.
For tanker crews and the companies that own and insure their ships, these developments have immediate consequences. Routes once treated as routine now look like potential target zones. Insurance costs tend to rise when ships are hit by drones in coastal waters, and charterers may start seeking alternative paths that are longer and more expensive but perceived as safer.
Iran’s approach — pushing out restricted zones from its coastline and testing the environment inside the Gulf — gives it leverage without a formal blockade. It can raise costs and inject uncertainty into shipping plans while stopping short of a sustained, declared interruption that might trigger a unified military response.
The United States is trying to push back by attacking Iran’s economic base. U.S. Central Command says American forces have destroyed 10 Iranian oil tankers over the past week, describing them as part of a multibillion-dollar shadow network that funds Iran’s Revolutionary Guard Corps. Washington also says Iranian attempts to hit U.S. Navy warships have failed, undercutting Tehran’s narrative of parity at sea.
The result is mounting strain on the global oil system. Exporters and importers must weigh whether to keep sending cargoes through contested corridors, while some Asian buyers, including South Korea, have already sent teams to the UAE to assess security near Hormuz as they debate potential naval deployments to protect their energy supply.
The risk around Hormuz and nearby waters doesn’t need to reach the level of a full blockade to matter. A mix of drone strikes on tankers, declared restricted zones and contested legal claims is enough to make shipowners, insurers and governments hesitate.
Key signals to watch now are whether more tankers are hit or detained in or near Iranian-declared zones, whether major shippers begin rerouting or suspending sailings, and whether important importers such as South Korea move beyond inspection missions and commit warships and aircraft to keeping oil moving.
Sources
- OSINT