US Gas Prices Drop Below $4 Following US-Iran Oil Agreement

By Patricia Miller

Jun 18, 2026

2 min read

US gas prices have dropped below $4 a gallon for the first time in over five months due to a US-Iran agreement to reopen the Strait of Hormuz.

Gas prices in the United States have fallen below $4 per gallon for the first time in more than five months, following a key agreement between the US and Iran to reopen the Strait of Hormuz. This strait is a vital oil shipping route, responsible for transporting around 20% of the world’s crude oil. The agreement, facilitated by Pakistan, calls for an immediate halt to military actions and the resumption of commercial shipping, which has led to a notable decline in global crude oil prices, decreasing by nearly 5% to 8% and approaching $80 per barrel. This is a sharp decline compared to the prices that surged above $110 per barrel earlier in February 2026.

This recent development has also influenced prediction markets concerning crude oil prices. The chance of crude oil prices peaking to an all-time high by September 30 has lessened, with current market estimates placing the odds at 8.5%, down from 17% just a week ago. The reopening of the Strait of Hormuz has reduced concerns surrounding supply risks, thereby altering market expectations regarding crude oil price trends in both the short and long term.

#What Should Investors Know About Reduced Oil Prices?

As an investor, you should be aware that market behaviors indicate diminished odds for crude oil to reach record highs by the end of September. The US-Iran agreement has significantly decreased perceived supply risks, contributing to the recent drop in global crude oil prices and, consequently, a fall in gasoline prices in the US below the $4 mark.

#How Should Investors Stay Informed?

It's essential to keep an eye on the stability of the US-Iran agreement and its resulting effects on the global oil market. Any resurgence of tensions or disruptions within the Strait of Hormuz could potentially change current market conditions. Additionally, future decisions from OPEC+ regarding production and economic indicators worldwide will likely play pivotal roles in forecasting crude oil prices moving forward. These factors will also impact the chances of crude oil reaching new price peaks before the end of the year.

Important Notice And Disclaimer

This article does not provide any financial advice and is not a recommendation to deal in any securities or product. Investments may fall in value and an investor may lose some or all of their investment. Past performance is not an indicator of future performance.