Saudi defense minister flies to Tehran as Trump says it is "decision time" on Iran; oil slips

Saudi Arabia's defense minister is in Tehran on Monday to try to head off a wider war, and oil is lower on the news. Prince Khalid bin Salman is due to meet Iranian President Masoud Pezeshkian and National Security Council chief Mohsen Rezaei, according to the Saudi Foreign Ministry as relayed by CNBC. Pakistan's army chief, Asim Munir, and Turkey's intelligence head, Ibrahim Kalin, are also in the talks.

Who is in the room, and why it matters

CNBC reports the three countries signed the Makkah Joint Defence Agreement in August, under which an armed attack on one member counts as an attack on all. This is the group's first meeting since Houthi missiles and drones hit sites across Saudi Arabia, including Riyadh's airport and an administrative building belonging to Saudi Aramco, per the same CNBC report. The Houthis are Iran-allied; Riyadh is meeting the patron of the group that has been shooting at it. We have seen no readout of the talks yet, so what is said in the room is unknown.

Saudi authorities said Sunday they intercepted more missiles and drones, and the kingdom partly reopened its main airport that day despite damage, CNBC reports. The Houthis threatened further strikes. Our earlier report has the casualty accounts, which differ between outlets.

Trump: "decision time"

In a Fox News interview on Sunday, President Trump said: "Do I finish it off, which would be very easy to do, or do I make a deal? It's getting to be decision time," per CNBC. He named Pickaxe Mountain, a deeply buried site linked to Iran's nuclear program, as a possible target and said three other nuclear sites are "obliterated." We cannot verify the state of any site from the sources we read.

CNBC notes the last confirmed U.S. strikes on Iran were on Sept. 1, that Trump previously said strikes would not resume until after the Nov. 3 midterms, and that Tehran says it is preparing a military response to any attack. Qatari mediators visited Tehran on Sunday, per Reuters as cited by CNBC. Trump also repeated that the U.S. controls the Strait of Hormuz and that crude flows have returned to pre-war levels. CNBC says both Washington and Tehran have claimed control of the route and that overall trade flows remain severely curtailed. Those claims conflict and we cannot settle them.

What it means for oil, shipping, airlines, defense and the pump

Oil. At 9:19 a.m. ET, CNBC had U.S. West Texas Intermediate futures down 1.2% at $102.05 and Brent down 0.7% at $115.86. Our own delayed quotes around 10 a.m. showed the same direction. Prices are being set by headlines, and the pullback follows a sharp rally Friday. Michael Alfaro of Gallo Partners told CNBC that geopolitics has added roughly $20 a barrel and that a strike on Saudi Arabia's East-West pipeline or refineries could send prices "sharply higher," while demand destruction would build above $120 Brent. His warning that refining capacity is the real constraint, possibly into 2027, is one analyst's view. Quotes differ by contract month, so compare moves, not levels, across sources.

Shipping and insurance. CNBC reports a Singapore-flagged container ship sank in the strait earlier this month after an unidentified projectile struck it. We found no published war-risk premium this run, so we put no number on insurance.

Airlines and airspace. Riyadh's airport is only partly back in operation. The airlines ETF JETS traded near $26.41 in delayed quotes around 10 a.m., against Friday's $26.10 close. We found no source tying that move to the Tehran talks.

Defense stocks. The defense ETF ITA traded near $204.25, against Friday's $202.23 close, a gain of about 1%. That is a small move for a day with a "decision time" headline.

Consumers. Crude is the link to the pump. The Energy Department authorized a release of up to 400,000 barrels from the Strategic Petroleum Reserve on Friday to cover a Louisiana refinery disruption, per CNBC, which is small against current prices.

Watch next: any joint statement from Tehran, a Houthi response, and Israel's election on Tuesday. Background in our Sunday Iran report, plus the crude oil chart.

Sources: CNBC oil markets, CNBC on the U.S.-Iran standoff, Yahoo Finance (delayed quotes). Claims are attributed to the parties that made them. This is market information, not investment advice.