Oil at $91 as US-Iran Conflict and Strait of Hormuz Disruptions Intensify

Brent crude closed around $91 on July 21, 2026, as the United States completed its eleventh consecutive night of air strikes against Iran and Houthi threats forced oil tankers to U-turn in the Strait of Hormuz. Bloomberg
The escalation has moved fast. Iran attacked US targets in Bahrain, Jordan, Qatar, and Oman on July 16 and 17, according to the Institute for the Study of War (ISW), part of what the think tank described as an effort to impose costs on US allies. ISW Iran then launched a ballistic missile at a US base in Saudi Arabia, the first Iranian attack on Saudi territory in nearly three months. ISW On July 17 and 18, Iran conducted three ballistic missile strikes against Muwaffaq al Salti Air Base in Jordan. ISW
United States Central Command (CENTCOM) stated it had completed its eleventh consecutive evening of strikes against Iran, reported late July 21 into early July 22. Al Jazeera US forces had expanded strikes to possible missile launch sites in northwestern and central Iran as of July 19–20. ISW Iran also attacked at least two vessels during the same period, per ISW's July 20 update. ISW
The Houthis declared on July 13 that they had ended a period of de-escalation, calling attacks on them "blatant aggression." Reuters By July 22, Bloomberg reported that Houthi threats were forcing tanker U-turns as Iran choked the Strait of Hormuz, with key Middle Eastern oil chokepoints facing disruption as threats mounted. Bloomberg
Oil's path through this conflict has been steep but not a straight line. On March 1, Reuters reported oil jumped 10% on the initial Iran conflict, with analysts flagging a potential spike to $100 a barrel. Reuters By June 2, prices had settled back to roughly a 1% gain in volatile trade amid uncertainty over US-Iran talks. Reuters The June 22 Bloomberg report that Iran shipped 30 million barrels in the week before a US waiver showed how supply briefly flowed before the current military escalation. Bloomberg
The interim deal between the US and Iran is over, as Trump stated on July 7, when the truce buckled under fresh hostilities. Reuters Oil climbed over 4% to near a six-week high by July 10 as conflict threatened key oil transit routes. Reuters On July 21, Bloomberg reported oil edged higher as Trump cooled prospects for talks with Iran. Bloomberg
Pakistan's foreign minister spoke by phone with Iran's top diplomat and urged de-escalation on both sides, per AP News. AP News Iran claimed it targeted US assets in Kuwait, Bahrain, and Jordan during the July hostilities. CBS News
The broader context here is a supply market where the demand side has already absorbed a structural shock. Bloomberg reported on April 14 that the Iran war wiped out global oil demand growth for that year. Bloomberg Demand destruction at that scale, combined with active chokepoint disruption at Hormuz, creates a pricing environment where the risk premium is not speculative but grounded in observable physical-flow interruption. A risk premium is the extra cushion investors build into the price of oil to account for the chance that something goes wrong with supply. The $91 Brent print reflects a market where tankers are physically turning around, not merely a geopolitical sentiment bid.
The analyst $100 call from March has not yet been reached, but the gap has narrowed considerably. What separates the current situation from the March spike is duration: eleven consecutive nights of strikes, a declared end to the interim deal, Houthi re-engagement, and now confirmed vessel attacks. Each of those elements individually would carry a risk premium. Their convergence is what keeps Brent elevated despite the earlier demand-side destruction that should, in a calmer geopolitical environment, cap prices.


