Oil Prices Breach $111 as Trump’s Deadline for Iran to Reopen Strait of Hormuz Nears

The United States military may target Iran’s power plants and bridges this week if Tehran does not open up the Strait of Hormuz, the U.S. president has warned.

Pumpjacks operate while others stand idle in the Belridge oil field near McKittrick, Calif., on March 10, 2026. Mario Tama/Getty Images

Brent crude oil futures opened higher on late Sunday from Thursday’s closing, breaking through the $111 per barrel level amid concerns that the Iran war could potentially worsen over the coming week.

On March 31, oil prices hit its weekly high of over $119 per barrel. Prices then collapsed to as low as around $98 on Wednesday, before subsequently jumping to more than $109 on Thursday. The markets were closed on Easter Friday. On late Sunday, oil hit a high of $111.89 and was trading at $110.73 as of 9:50 p.m. ET.

The renewed surge in oil prices comes as an ultimatum issued by President Donald Trump to Iran ends on Monday.

Trump had earlier said that if Iran did not open the Strait of Hormuz—a shipping passageway located south of Iran through which a fifth of the world’s oil and gas is transported—by April 6, U.S. forces might attack Iran’s infrastructure.

In an April 5 post on Truth Social, Trump warned, “Tuesday will be Power Plant Day, and Bridge Day, all wrapped up in one, in Iran. There will be nothing like it!!!”

In another post, Trump wrote, “Tuesday, 8:00 P.M. Eastern Time,” suggesting that this was the deadline set for the Iranian regime.

Iran has pushed back against Trump’s threats. “If attacks on civilian facilities are repeated, the next phase of the operation will be more intense and broader in scope,” Iran’s Islamic Revolutionary Guards Corps warned via an article in state-run PressTV on April 5.

On Sunday, Trump also said he was not ruling out sending U.S. ground troops into Iran if the regime fails to reopen the Strait by the deadline.

One bridge in Iran has already been destroyed by the United States. The recently-finished B1 bridge, connecting Tehran to the city of Karaj, was severed by a U.S. strike on April 2. A U.S. official previously told The Epoch Times that the strike was to eliminate “a planned military supply route for sustaining Iran’s ballistic missile and attack drone force.” Iran condemned the strike as an attack on civilian infrastructure.

The rising hostility has spooked oil markets, pushing prices higher as investors wait to see how the conflict evolves this week.

However, opening up the Strait of Hormuz may not be enough to calm the oil markets anytime soon, ING Bank said in an April 2 post.

“Even if shipping through the Strait of Hormuz resumes, a return to pre‑war market conditions is likely to be slow, as upstream production restarts, logistics normalisation and inventory rebuilding will take time,” ING said.

Patrick De Haan, head of petroleum analysis at GasBuddy, warned of higher gasoline prices at the pump for Americans in an April 4 post on X.

“Attacks on refining capacity are likely to take longer to restore than the Strait and risk higher fuel prices globally for longer. Coupled with Ukraine attacks on Russian refineries, this summer could see very elevated prices compared to early year expectations,” DeHaan said, referring to U.S. gasoline prices.

On March 31, the national average retail price for regular gas exceeded $4 per gallon for the first time since August 2022.

As of April 5, the U.S. average price for regular gas was $4.11 per gallon, up from $3.25 a month ago, according to data from the American Automobile Association. In four states, prices were higher than $5 per gallon—Nevada, Washington, Hawaii, and California.

Meanwhile, the international oil consortium OPEC+ agreed on Sunday to boost its oil output quotas by 206,000 barrels per day from next month.

According to an April 5 statement from the group, the production quota increase was agreed upon by OPEC+ members Saudi Arabia, Russia, Iraq, the UAE, Kuwait, Kazakhstan, Algeria, and Oman.

“The countries will continue to closely monitor and assess market conditions,” the statement said.

Another OPEC+ committee panel, which met on Sunday, expressed worries about Iran’s strikes against key energy assets, with the committee pointing out that infrastructure is expensive and repairs are time-consuming, which affects oil supply.

“Accordingly, [the committee] stressed that any actions undermining energy supply security, whether through attacks on infrastructure or disruption of international maritime routes, increase market volatility and weaken the collective efforts under the [Declaration of Cooperation] to support market stability for the benefit of producers, consumers, and the global economy,” the committee said in a statement.