Tanker struck by projectiles in rare Gulf attack west of Strait of Hormuz

A tanker carrying oil and chemicals was struck by multiple projectiles in the Persian Gulf on Thursday, with crew members reported injured in what amounts to a rare attack far inside the waterway. The Acers, registered under the flag of Antigua and Barbuda, was hit 51 nautical miles north of Madinat al-Shamal, according to the United Kingdom Maritime Trade Operations agency. The strike marks the first reported assault on a vessel this far west of the Strait of Hormuz since early September, a shift in the geography of an escalating maritime conflict that has reshaped global shipping for months.

The attack is the latest chapter in a broader campaign against commercial shipping that began when the United States and Israel launched military operations against Iran in February. Since then, merchant vessels moving through the Gulf have faced relentless danger. The United Nations' International Maritime Organization has documented 93 confirmed incidents in which ships came under fire, resulting in at least 24 deaths among seafarers. The previous fatal attack occurred on September 9, when two sailors were killed aboard the Panama-flagged tanker El Gaia in the Strait of Hormuz, the narrow waterway that connects the Gulf to the Gulf of Oman and through which roughly one-fifth of the world's oil and gas normally flows.

The Strait of Hormuz itself has become nearly impassable. When Iran's campaign of missile and drone strikes began, combined with a US naval blockade of Iranian ports, the waterway was effectively closed to commercial traffic. A preliminary ceasefire agreement reached in June promised to reopen it, but the arrangement collapsed within weeks after Iranian attacks resumed and the United States reinstated its blockade. Iran has made clear it will not surrender its leverage over the strait, instead targeting vessels that attempt to use a southern route through Omani waters as an alternative to the Iranian-controlled passage.

The disruption has forced a fundamental reorganization of global energy markets. The US military has positioned itself as a protective force, escorting tankers carrying oil from Gulf Arab states through the contested waters. Over the past two weeks, crude exports through the Strait of Hormuz have averaged 12 million barrels per day, according to analysts at the shipping data company Kpler. That figure represents roughly 80 percent of the volume that moved through the strait before the conflict began—a significant reduction in what is one of the world's most critical energy chokepoints.

The attack on the Acers also came as maritime intelligence firms were sorting through conflicting reports of other incidents. On the same day, Vanguard, a firm that tracks vessel movements, initially reported a fire aboard another tanker, the Marshall Islands-flagged Dhalkut, in the Gulf of Oman about 40 kilometers east of Fujairah in the United Arab Emirates. The company later clarified that there were no indications a fire had actually occurred on that vessel. The confusion underscores the fog surrounding maritime operations in the region, where attacks are frequent enough to generate constant alerts but verification often lags behind initial reports.

What distinguishes Thursday's strike is its location. The Acers was hit well west of the Strait of Hormuz, suggesting that the zone of danger has expanded beyond the narrow passage itself into the broader Gulf. For shipping companies and their insurers, this represents a widening threat. The preliminary ceasefire that collapsed in June had offered a moment of hope that the waterway might stabilize, but the resumption of attacks and the failure of negotiations have left the situation in a state of suspended crisis—exports flowing at reduced levels, protected by military escort, with no clear path toward a lasting resolution.