Iran steps up tanker attacks in Hormuz as Brent holds above $100

Iran has increased the pace of attacks on tankers in the Strait of Hormuz in recent days, just as oil and gas shipments through the waterway were climbing^10,13. A Panamanian-flagged crude oil tanker was struck by an unknown projectile while transiting the strait on 5 October, injuring 12 of the crew¹². The UK Maritime Trade Operations has recorded nine incidents so far this month¹⁵.

A senior adviser to the commander-in-chief of Iran’s Revolutionary Guards said on Wednesday that the Strait of Hormuz remains closed and will stay closed until Iran’s demands are met³. US Secretary of State Marco Rubio said Iran has “lost complete control” of the strait and that Tehran’s economy is in freefall^4,5,7.

Why it matters to investors

Brent crude climbed back above $101 a barrel as the attacks increased and a storm threatened the Gulf⁶, rising 0.8 percent to over $101 in early Asian trading¹³. CNBC reported oil rising as concern over Houthi attacks on Saudi Arabia eclipsed the recovery in supply¹⁴. Semafor reported analysts pointing to both the rise in vessel attacks in Hormuz and the continuing Houthi threat in the Bab el-Mandeb waterway¹. The US Energy Information Administration lifted its Brent forecast to $98 as the Iran war tightened global supplies².

The cost of moving the oil is rising faster than the oil price. Tanker captains willing to brave Iranian attacks stand to bank a $50,000 bonus for every crossing of the strait⁹, on salaries reported at $100,000, with record freight rates and insurance premiums alongside¹¹. Vitol’s Russell Hardy told a conference that tanker shuttles through the strait are what is preventing a $200-per-barrel scenario, and that an oil crisis is now a matter of cost rather than availability⁸.

What to watch

Equity markets are reading the chokepoint directly: City AM reported London stocks set to fall as the strait came under threat¹⁵. Numerous merchant ships belonging to Iran and other countries remain at anchor in the strait at Bandar Abbas¹⁴.

Three things decide whether the premium holds. Whether the shuttle system keeps working, since Vitol’s own framing makes it the barrier to a far higher price⁸. Whether crew pay and insurance keep climbing, which lifts the delivered cost of Gulf crude regardless of the headline barrel price^9,11. And whether Rubio’s claim that Iran has lost control of the strait is borne out, against the Revolutionary Guards’ insistence that it remains closed^3,5.