US Gas Prices Drop Amid US-Iran Diplomatic Optimism

National gasoline prices in the United States fell for two consecutive weeks in early June 2026, reaching an average of $4.26 per gallon. GasBuddy reported price declines across all 50 states, with 15 states seeing averages drop below $4 per gallon. This trend was driven by falling oil prices and growing optimism that the United States and Iran would reach a diplomatic agreement to stabilize global supplies.

To further stabilize the market, the US government released 172 million barrels of oil from the Strategic Petroleum Reserve, while the EPA issued waivers for nationwide sales of E15 ethanol-blended gasoline. Despite these drops, prices remain roughly $1.18 per gallon higher than they were in June 2025. Diesel prices also trended downward, falling to a national average of approximately $5.44 per gallon.

Analysts warn that this relief may be short-term. Geopolitical volatility persists as the Cabinet of Israel launched joint strikes with the US to halt Iranian nuclear development, and Iran has threatened to close the Strait of Hormuz. Industry experts describe the situation as a global game of chicken between the US, Iran, Russia, and Israel. While crude oil has dipped below $100 per barrel, uncertainty over the Strait of Hormuz and rising summer demand may prevent further dramatic price decreases.