War Room brief: Houthi missiles damage Aramco Tower in Riyadh as the U.S. widens its Iran blockade

Saudi Arabia and the Houthis

An Aramco administrative building in Riyadh was damaged by falling debris after an attempted attack on Sunday, with no injuries reported, Saudi Arabia's Energy Ministry said, according to CNBC. A Reuters witness saw blown-out windows across several floors of Aramco Tower in the King Abdullah Financial District. The Saudi-led coalition said it intercepted two cruise missiles fired by Yemen's Houthis toward Riyadh and the south. The Houthis had not commented at the time of CNBC's report. Saudi Civil Defense also issued and then lifted alerts in the Eastern Province, including Dhahran, where Aramco is headquartered.

It follows a Saturday strike near Sanaa. Houthi-linked media say Saudi air strikes killed at least 33 people, including women and children, in al-Shariyah, and Houthi leader Mahdi al-Mashat vowed revenge, according to the BBC. The coalition had not commented to the BBC, and Saudi authorities told CNBC they were investigating. We cannot verify the casualty count. The BBC also notes a Friday market strike in Taiz province reported to have killed 30, with the Houthis and Yemeni government forces blaming each other. The UN says more than 1,600 people have died since fighting resumed. Watch today: a Houthi claim of responsibility, any Saudi response, and further alerts around Aramco sites.

Iran and the United States

The U.S. military on Saturday announced Task Force Iron Gate, based in Tampa, to choke Iran's movement of weapons, dual-use technology and sanctioned goods over its land borders and the Caspian Sea, building on the months-long naval blockade, CNBC reported. U.S. Central Command estimates the blockade has kept more than $25 billion of Iranian crude from export. That is CENTCOM's own figure, which we have not checked independently.

Diplomacy and escalation are running side by side. Trump said Thursday he would decide "soon" whether to attack Iran again, and a third U.S. carrier strike group is heading to the region, according to CNBC, which also quotes Rapidan Energy putting the odds that fighting resumes at 80%. That is one consultancy's estimate. Separately, headlines carried by the Times of Israel and AP say Iran's Revolutionary Guard claims a self-imposed limit on its ballistic missile range, reported as 2,000 kilometers, "has been lifted"; we read those as headlines only and cannot assess what it changes. Iran also executed three men on Sunday over the January protests, state media reported, per CNBC. Watch today: any Trump decision, Iranian retaliation threats against Gulf infrastructure, and tanker incidents near Oman.

Russia and Ukraine

Zelensky said Russia hit 12 regions overnight Saturday with more than 30 ballistic missiles and over 170 drones, with Kyiv hit hardest, per the BBC. Nine people were reported hurt. He said substations linking the Rivne and Khmelnytsky nuclear plants to the grid were struck, and that Kyiv had power, water and heating disruptions; the mayor said about 60% of Kyiv's apartment buildings were back on heating. These are Ukrainian accounts. Ukrainian and Russian delegations are due at trilateral talks in Abu Dhabi next week. Watch today: official outage figures and confirmation of the talks' date.

Markets box

Figures are Friday's closes, read from Yahoo Finance this morning. Futures and ETFs are closed for the weekend, so these are not live prices.

Percentages are our arithmetic. Yahoo's front-month futures series may differ from other feeds, so we do not name a contract month here.

Oil. CNBC says crude fell more than 16% over the last five trading days on hopes the midterm results would end the war, while analysts warn of a renewed-fighting scenario that RBC's Helima Croft described as a divergence between Gulf escalation and market optimism. Rapidan's Bob McNally told CNBC crude would vault back above $100 on renewed fighting. The Aramco Tower incident and the Eastern Province alerts hit just as markets are closed, so Monday's open is the first test. Shipping and insurance. CNBC reports several tankers have been attacked near Oman since the election, killing one seafarer, according to maritime security agencies, which keeps war-risk costs elevated. Airlines and airspace. Gulf alerts and the carrier buildup are the airspace risks to watch; JETS rebounded 1.3% Friday. Defense. ITA also rose 1.3% Friday. Consumers. Pump prices lag crude by days to weeks, so a renewed strike cycle could stall this week's drop at the pump.

More: Saturday's brief, crude oil chart, gold chart, War Room, markets.

Sources: CNBC (Aramco), CNBC (Task Force Iron Gate), CNBC (escalation risk), CNBC (executions), BBC (Yemen), BBC (Ukraine), Times of Israel and AP headlines (not read in full), Yahoo Finance. Claims are attributed to the parties that made them. This is market information, not investment advice.