Oil jumps as U.S. strikes on Iran after Tehran targeted commercial ships risk fragile Mideast truce

• WTI crude rose 2.87% to $72.46 per barrel and Brent crude jumped 2.75% to $76.18 per barrel following the U.S. military strikes
• The U.S. Treasury Department revoked sanctions waivers that had permitted Iran to sell oil, with officials warning Iran will face 'heavy costs' for targeting commercial shipping
• The Joint Maritime Information Center raised its threat assessment for ships transiting the Strait of Hormuz to 'severe', warning that further hostile action by Iran was likely

Oil Prices Surge on U.S.-Iran Tensions in Strait of Hormuz

Oil prices jumped Wednesday following U.S. military strikes on Iran in retaliation for attacks on commercial vessels in the Strait of Hormuz. West Texas Intermediate (WTI) futures for August delivery rose 2.87% to $72.46 per barrel, while Brent crude futures for September climbed 2.75% to $76.18 per barrel.

Key Developments:

The U.S. military launched a "series of powerful strikes" against Iran after three commercial vessels came under attack Tuesday while transiting the Strait of Hormuz. U.S. Central Command (Centcom) warned Tehran would face "heavy costs" for targeting commercial shipping, calling Iran's actions "unwarranted, dangerous, and a clear violation of the ceasefire."

The escalation threatens a fragile ceasefire agreement reached last month that had reopened the strategically vital Strait of Hormuz—a critical shipping route for regional oil and gas—after months of disruption. The waterway had been effectively blockaded since late February during a U.S.-Iran conflict.

Policy Response:

The U.S. Treasury Department canceled waivers on Tuesday that had previously allowed Iran to sell its oil, signaling a significant policy shift. A U.S. official stated, "Iran will only reap benefits if they exhibit good behavior," emphasizing that consequences would follow Iran's "wholly unacceptable" actions.

Market Implications:

The U.S.-led Joint Maritime Information Center raised its threat assessment for vessels transiting the Strait of Hormuz to "severe," warning of likely further hostile action by Iran. Given the strait's critical role in global energy transportation, continued tensions could disrupt supply chains and maintain upward pressure on oil prices, creating uncertainty for energy markets and global trade.