The ongoing conflict involving Iran has significantly disrupted global oil markets, driving volatility in prices and prompting policy responses from the U.S. and G7 nations. The closure of the Strait of Hormuz, a critical chokepoint for oil shipments, has tightened global supply, contributing to rising fuel costs and economic instability. Gas prices in the U.S. are expected to spike further ahead of Memorial Day, with experts warning of continued volatility due to geopolitical tensions between the U.S. and Iran .
In response to supply shortages, the U.S. Treasury has repeatedly extended a sanctions waiver for Russian oil, allowing third countries to purchase Russian crude already loaded on tankers. The latest 30-day extension, announced on May 18, 2026, follows earlier renewals despite opposition from some U.S. lawmakers, who argue the waiver benefits Russia without lowering fuel costs for American consumers. The waiver was initially introduced to mitigate supply disruptions caused by Iranâs closure of the Strait of Hormuz, but its repeated extensions suggest persistent market pressures .
G7 finance ministers have prioritized discussions on containing the economic fallout from the Iran conflict, particularly its impact on energy prices and sanctions policy. The U.S. has also faced lobbying from allies like India, which has sought exemptions to maintain access to alternative oil supplies amid the crisis. Meanwhile, U.S. Treasury Secretary Scott Bessent has signaled a potential shift toward tougher sanctions on Iran, though the administration continues to balance energy market stability with geopolitical pressures .
The conflict has reshaped global energy trade dynamics, with Russia emerging as a key supplier to China and other markets as traditional routes face disruptions. The prolonged closure of the Strait of Hormuzânow entering its 78th dayâremains a central factor in oil market instability, with no immediate resolution in sight .