Stock hold steady, oil stays above $100 after partial blockade begins

Aimee Picchi Mon, April 13, 2026 at 11:55 AM CDT 3 min read

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Global oil prices remained above $100 a barrel on Monday while U.S. stocks held steady after President Trump's plan to blockade Iran's ports in the Strait of Hormuz took effect.

The price of Brent crude, the international benchmark, was up 6%, or $5.71, to $100.91 a barrel by midday Monday, while West Texas Intermediate, the U.S. benchmark, was up 4.6%, or $4.43, to $101 a barrel, according to Oilprice.com.

Gas prices over time (Line chart)

The Dow Jones Industrial Average slipped 37 points, or 0.1%. The S&P 500 rose 23 points, or 0.3%, while the tech-heavy Nasdaq Composite gained 0.5%.

While weekend negotiations failed to yield an agreement to end the war in the Middle East, Mark Luschini, the chief investment strategist at Janney Montgomery Scott, told CBS News that there's growing investor sentiment that the conflict has passed its peak escalation and could ease further.

"I think investors realize that this is probably a little bit more brinkmanship than necessarily the start of a significant re-escalation of the war, given the fact that we're still theoretically in the midst of this two-week ceasefire, in which negotiations still have a chance of coming back together," he said.

Gas prices over time (Line chart) Gas prices over time (Line chart)

Blockade begins

Mr. Trump said the U.S. blockade of Iran's ports will begin at 10 a.m. ET Monday, an announcement that came after the failure of negotiations in Islamabad over the weekend to reach a peace agreement in the U.S.-Iran war.

Because Iran exports much of its oil to China, the move to block its ships from leaving the strait could be designed to put increased pressure on Tehran as well as convince Beijing to play "a more active role in mediating a ceasefire," Capital Economics group chief economist Neil Shearing said in a research note.

"In practice, however, [the blockade] risks creating new potential flashpoints," Shearing said. "Would the U.S. Navy seize allied ships that have paid tolls to Tehran? Would it target Chinese vessels in the Strait? Either outcome would represent a significant escalation."

Oil prices have been rising as shipping through the strait has essentially stalled since late February. Brent crude has climbed from roughly $70 per barrel before the war in late February to more than $119 at times. That, in turn, has pushed U.S. gas prices above $4 a gallon, pinching household budgets.

The declines in equity markets Monday morning weren't as steep as some had projected following the failed negotiations over the weekend, said Adam Crisafulli, an analyst with Vital Knowledge, in a research note before the opening bell.

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"The Hormuz blockade in reality isn't as draconian as it initially appeared — the U.S. Navy is focused on interdicting ships traveling to/from Iranian ports, not all vessels moving through the waterway," Crisafulli said.

Number of ships crossing the Strait of Hormuz each day (Column Chart)

U.S. Central Command said the U.S. Navy won't stop vessels heading through the strait to and from non-Iranian ports.

Traffic in the Strait of Hormuz, through which about 20% of the world's energy supplies are shipped, has been significantly curtailed since the war began in late February. In April, an average of about 10 ships passed through the Strait each day, far below the roughly 129 ships that traveled through the waterway in the month before the war, marine transit data shows.

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Source: “AOL Money”