The Trump administration's military blockade of the Strait of Hormuz caused a sharp spike in global oil markets. On April 13, the United States announced a naval blockade targeting all maritime traffic entering or leaving Iranian ports. In response, West Texas Intermediate (WTI) futures surged over 10% to exceed $104 per barrel, while Brent crude climbed above $102 per barrel, both surpassing the psychologically important $100 mark.
Blockade and Market Reaction
U.S. Central Command stated the blockade would take effect at 10:00 AM ET on April 13, covering all vessels moving to and from Iranian ports. President Trump had earlier telegraphed the move on social media, framing it as a measure to choke Iran's oil exports and force an end to the ongoing conflict in the Middle East. However, the Strait of Hormuz is a chokepoint for roughly one-third of the world's seaborne oil trade, making the blockade an immediate supply shock.
Market panic was instantaneous. WTI futures opened around $95 and surged to a high of $104.50, while Brent topped $102. Analysts warned that if the blockade persists, prices could climb above $120. U.S. gasoline prices, already elevated, rose further: according to Gasbuddy, the national average hit $4.08 per gallon, near all-time highs.
Inflation and Political Risks
The oil spike intensifies inflationary pressures in the U.S. The March Consumer Price Index (CPI) rose 0.9% month-over-month, bringing the annual rate to 3.3%, with energy costs as the main driver. President Trump admitted in a Fox News interview that high oil prices could persist into the upcoming midterm elections. When asked whether gasoline prices would be lower before the elections, he said: “I hope so. I think so, maybe, maybe, or the same or a little higher, but it should be about the same.” The remarks fuel concerns about political fallout.
Iranian Parliament Speaker Mohammad Bagher Kalibaf taunted Americans, saying: “Enjoy the current prices at the pump. With the so-called ‘blockade’, you will soon miss $4-5 gasoline.” He warned that Iran could further disrupt global supply, pushing gas prices past $5 per gallon.
Trump Threatens China with 50% Tariffs
Alongside the blockade, President Trump warned China on April 12 that if U.S. intelligence confirms Beijing is arming Iran—specifically with man-portable air-defense systems (MANPADS) allegedly delivered during a ceasefire—China will face 50% immediate tariffs. U.S. intelligence reports suggest possible MANPADS transfers. The threat adds fresh uncertainty to U.S.-China trade relations and could disrupt global supply chains. China has not yet responded officially.
The volatility in oil markets is reshaping geopolitical dynamics. All eyes are on the Strait of Hormuz and whether the U.S. will adjust its stance under economic pressure. The cryptocurrency market, meanwhile, saw a mild uptick in Bitcoin as some investors sought a hedge against inflation and geopolitical instability.