Oil jumps more than 2% after US attack on Iran's Larak island

• Brent crude futures climbed $2.22 (2.52%) to $90.32 per barrel, while WTI crude rose $2.01 (2.41%) to $85.41 per barrel
• The U.S. struck two Iranian launchers on Larak island located in the strategically vital Strait of Hormuz, a key global oil shipping chokepoint
• The attack represents an escalation in U.S.-Iran tensions, with potential implications for oil supply security in the Persian Gulf region

Market Summary: Oil Surges on U.S.-Iran Military Escalation

Key Price Movements

Oil prices jumped more than 2% on Monday, August 31, 2026, following U.S. military action against Iranian targets in the strategically critical Strait of Hormuz:

• Brent crude: Rose $2.22 (+2.52%) to $90.32 per barrel, breaking above the $90 threshold
• WTI crude: Increased $2.01 (+2.41%) to $85.41 per barrel

Geopolitical Catalyst

The price surge was triggered by U.S. forces striking two Iranian missile launchers on Iran's Larak Island on Sunday. This marked the first confirmed American military strikes on Iranian territory since late July, representing a significant escalation in regional tensions.

Market Implications

The Strait of Hormuz is one of the world's most vital oil transit chokepoints, with approximately one-fifth of global petroleum passing through the narrow waterway. Any military activity in this region raises immediate supply disruption concerns among traders and investors.

The swift price reaction underscores the market's sensitivity to Middle East geopolitical risks, particularly involving Iran. The return of Brent above $90 per barrel signals heightened risk premium pricing as investors assess potential supply chain vulnerabilities.

Sectors Affected: Energy producers, shipping companies, and downstream refiners will likely experience increased volatility. Defense and geopolitical risk hedging instruments may see elevated activity.

Outlook: Market participants should monitor for further escalation, potential Iranian retaliation, and any impact on tanker traffic through the strait. Continued tensions could push prices higher, while diplomatic de-escalation could reverse recent gains.