One Detail of Iran's Attack on US Base May Be Telling

The Pentagon says it has no reports of injuries or deaths at its military base in Qatar after Iran fired a barrage of missiles, reports the Washington Post. And the AP notes that Iran made a point to say that it used the same number of missiles as the US dropped on Iran, which the outlet sees as a "likely desire to de-escalate." Whether that's an accurate read remains to be seen, but a few other details suggest that Tehran kept things relatively contained:

• The New York Times, citing three Iranian officials, reports that Iran gave Qatar a head's up about the attack on the Al Udeid Air Base in order to limit casualties. Qatar says it was able to intercept all the missiles, and the nation also shut down its airspace as a precaution.

• Oil prices fell more than 5% after the strike, and the Dow rose about 300 points. The lack of casualties raised "hope among investors that there might be a path to de-escalate the conflict," per CNBC.
• Still, regional tensions remained high: Bahrain, Kuwait, and the United Arab Emirates also closed their airspaces on Monday, reports the Wall Street Journal.

(More Iran stories.)