US Blockade of Gulf of Oman Sends Oil Prices to Record Highs

Crude oil prices surged above $100 per barrel on April 13, 2026, as the United States military began implementing a blockade of Iranian ports. The move follows the failure of peace talks between the U.S. And Iran held over the weekend in Pakistan.

U.S. Central Command announced that the blockade of all maritime traffic entering and exiting Iranian ports was scheduled to begin at 10 a.m. ET on April 13, 2026. The operation includes all Iranian ports on the Arabian Gulf and the Gulf of Oman.

Market Impact and Oil Pricing

The announcement triggered an immediate spike in energy markets. U.S. Crude oil futures for May delivery rose nearly 8% to $104.04 per barrel by 8:18 a.m. ET on April 13, 2026. The international benchmark Brent for June delivery advanced more than 7% to $102.25.

Other reports indicated that European oil prices reached a record high of nearly $150 a barrel. This follows a period of volatility where prices had spiked to nearly $120 a barrel during the war before falling below $100 last week after a temporary agreement between the U.S. And Iran.

The financial markets showed mixed reactions. While Asian stocks tumbled ahead of the blockade, the S&P 500 remained flat as some investors bet on an eventual resolution to the conflict. However, the Dow Jones Industrial Average was dragged down by movements in Goldman Sachs.

Diplomatic Failure and Military Strategy

The blockade was initiated after a 21-hour meeting in Pakistan failed to produce an agreement to end the war. According to the U.S., the primary cause of the failure was Iran’s refusal to abandon its nuclear ambitions or commit verbally to never again seek tools to build a nuclear weapon.

Iran has countered these claims, asserting they were close to a deal but faced shifting goalposts and the subsequent blockade.

President Donald Trump stated that he ordered the Navy to interdict any ship in international waters that had paid Iran a toll to transit the Strait of Hormuz. He expressed his position on Fox News on April 12, 2026, stating that he does not want Iran to make money by selling oil.

U.S. Central Command clarified that the blockade would be enforced impartially against vessels of all nations entering or departing Iranian ports and coastal areas. The military stated it would not impede vessels transiting to and from non-Iranian ports.

Escalation and Economic Risks

The geopolitical tension has increased the risk of further military action. Reports from The Wall Street Journal indicate that President Trump is considering limited strikes on Iran to break the stalemate in peace talks.

Iran has threatened retaliation, with the speaker of Iran’s parliament stating, If you fight, we will fight, and threatening ports in the Middle East.

The economic ripple effects are already being felt in the corporate sector. Goldman Sachs CEO David Solomon noted that elevated uncertainty caused by the Iran war, along with AI disruption and private credit fears, led to a surge in trading and demand for the bank’s investment banking services in the first quarter of 2026.

An intelligence firm reported that ships stopped moving through the Strait of Hormuz after the blockade plan was announced at the White House. While the blockade is expected to impact a small number of vessels, the resulting market volatility has pushed oil prices back above the $100 threshold.