Key Highlights
- Brent crude surged beyond $100 per barrel on Thursday, reaching this milestone for the first time since May 26
- Yemen-based Houthi forces launched assaults on Saudi oil vessels navigating the Red Sea
- American forces conducted their 12th consecutive evening of military operations against Iran
- Iranian authorities announced a complete shutdown of the Strait of Hormuz to vessels lacking authorization
- Energy giants ExxonMobil and Chevron saw stock gains, while S&P 500 futures declined more than 1%
Global oil markets experienced a dramatic surge on Thursday, with prices climbing above the $100 threshold as Middle Eastern tensions intensified and critical maritime passages faced mounting threats.
Brent crude futures climbed to $100.06 per barrel, marking the first breach of this psychological barrier since late May. Meanwhile, West Texas Intermediate experienced an impressive rally of nearly 5%, reaching approximately $91 per barrel.

The dramatic price movement followed declarations by Houthi rebel forces operating in Yemen that they had targeted two Saudi Arabian oil tankers transiting the Red Sea. According to the militant group, these vessels had breached a naval embargo they had imposed days earlier.
Saudi Arabian officials have yet to verify whether any actual damage occurred to the vessels, though the reported incidents intensified concerns regarding potential supply interruptions through one of the planet’s most critical oil transportation corridors.
In recent days, the Houthi movement issued warnings that they would prevent Saudi-affiliated ships from navigating through the Bab el-Mandeb Strait, a narrow waterway linking the Red Sea with the Gulf of Aden. Multiple Saudi oil tankers destined for Indian and Chinese ports had already altered their routes in response to these threats.
Iranian Actions Escalate at Hormuz Chokepoint
United States armed forces executed their twelfth straight overnight military strike campaign against Iranian targets. Iran’s Islamic Revolutionary Guard Corps reported that one vessel among three tankers caught fire in proximity to a mined corridor south of the Strait of Hormuz.
In response, Iranian officials announced a complete shutdown of the Strait of Hormuz, issuing directives that petroleum tankers must secure advance clearance from Iranian authorities before attempting passage through the strategic waterway.
Combined, the Strait of Hormuz and Bab el-Mandeb passages facilitate the movement of a substantial portion of worldwide seaborne petroleum exports. Any prolonged interruption would compel tankers to navigate alternative routes around the southern tip of Africa, significantly increasing transit duration and transportation expenses.
President Trump issued a statement via social media platforms, cautioning both Iran and Houthi forces that continued assaults on commercial shipping would result in “major military punishment.”
Washington had criticized Iran for failing to engage constructively in diplomatic negotiations just one day prior.
Energy Sector Gains While General Markets Tumble
Higher crude prices provided a boost to American petroleum company valuations. ExxonMobil shares increased approximately 1.5% during pre-opening hours, while Chevron experienced gains of roughly 1.9%.
However, the wider equity markets moved in the opposite direction. S&P 500 index futures tumbled over 1% before regular trading commenced.
Federal energy statistics introduced an unexpected element to the supply narrative. The Energy Information Administration disclosed an unanticipated increase in petroleum reserves totaling 2 million barrels during the week concluded July 17, elevating aggregate commercial crude stockpiles to 411.7 million barrels.
Gasoline and distillate reserves also experienced increases. Nevertheless, despite the inventory accumulation, market participants remained primarily concerned with the potential for supply chain disruptions stemming from the escalating conflict rather than immediate inventory figures.
Market observers cautioned that the situation could persist in creating volatility across financial markets should the regional conflict continue without diplomatic resolution.


