Oil Prices Surge After U.S.-Iran Talks Fail and Trump Orders Strait of Hormuz Blockade

Apr 13, 2026

Oil prices jumped after weekend peace talks between the United States and Iran failed to produce a deal. President Donald Trump then said the U.S. would block the Strait of Hormuz, a major shipping route for oil and gas.
Trump said the U.S. Navy would begin the blockade on Monday morning Eastern time and block vessels passing through the strait. The move pushed oil higher, with some reports saying prices climbed above $100 a barrel, and natural gas prices also rose sharply.
The news also put pressure on U.S. stocks at the open, with the S&P 500 falling in early trading. Even so, some market coverage noted that broader financial markets were not reacting as strongly as oil prices, suggesting investors were still waiting to see how far the situation would go.

Why did oil prices rise so quickly?

Oil rose after U.S.-Iran peace talks failed and President Trump announced a blockade of the Strait of Hormuz.

Why is the Strait of Hormuz important?

It is a key route for shipping oil and gas, so any disruption there can affect energy prices.

Did only oil prices move?

No. Natural gas prices also climbed, and the S&P 500 fell in early trading.

Has the blockade started?

According to the reports, the U.S. Navy was set to begin the blockade on Monday morning Eastern time.

Sources
Oil prices spike after failed US-Iran peace talks and Trump's blockade of the St...
Business Insider
Oil prices surged after the US and Iran failed to reach a deal during peace talks on Sunday. President Donald Trump said the US will enact a blockade of the Strait of Hormuz.
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President Donald Trump said the United States Navy would blockade the Strait of Hormuz from 10 a.m. Eastern time Monday.
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Trump vowed to block all vessels passing through the Strait after weekend talks with Iran broke down, causing oil and natural gas prices to climb sharply.
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Crude oil prices jumped on Monday as the U.S. Navy imposed a blockade on Iran's ports after peace talks failed over the weekend. CNBC's Pippa Stevens has the latest.
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US refiners have already gained over 30% YTD on energy uncertainty and disruptions around the conflict in Iran. Refining margins or crack spreads often increase as the cost of finished fuels follow or even outpace crude oil prices. The conflict in Iran remains unresolved with restricted traffic thro...
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This oil tanker is rising along with the price of crude on Monday as the U.S. blocks ships in the Strait of Hormuz.
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Oil prices moved away from recent highs as traders focused on the potential second round of negotiations between U.S. and Iran.
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U.S. crude futures fell ​more than $1 in ‌early Asian trade on Tuesday as ​traders balanced heightened ​supply risks linked to ⁠a U.S. blockade ​of Iranian shipping ​in the Strait of Hormuz with reports that Washington ​and Tehran ​were still open to talks ‌after ⁠a tense meeting in Islamabad.
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Investors are weighing a U.S. blockade of Iranian shipping against signs that Washington and Tehran may still continue talks. U.S. Vice President JD Vance said Monday that the next steps in U.S.-Iran peace efforts now depend on Tehran.
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Oil fell in early Asian trade. President Trump said that the “right people” in Iran still want a U.S.-Iran deal after talks in Pakistan over the weekend ended without an agreement.
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While traffic through the strait remains limited, markets appear to be more optimistic over the chances of a long-term peace agreement between the U.S. and Iran.
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A U.S. blockade of Iranian ports begins as Washington and Tehran reportedly eye further peace talks. CNBC's Dan Murphy has the latest from Abu Dhabi.
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Hopes for further talks spurred appetite for risky assets and eased concerns over crude supply disruptions in the Middle East.
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Since the start of Operation Epic Fury at the end of February, Brent crude oil prices have risen as high as $150 a barrel as the Strait of Hormuz has been effectively closed by Iran.  Panic over supply is driving energy prices higher, and consumers are experiencing it at the pump with soaring gasoli...
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The U.S. imposed a blockade of vessels from Iranian ports through the Strait of Hormuz. Yet CENTCOM said it had also let some ships from non-Iranian ports through the U.S. blockade.
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