4/ Abqaiq transforms heavy/sour crude into light/sweet crude at the rate of 7 million barrels per day. That throws almost every major refinery in the world into panic...except American refineries which prefer heavy/sour.

5/ There is a question of range. You can't fly that far - over 300 miles - with a backpack drone. We r talking military grade. If Chinese, MBS is going to have a interesting convo w Xi. If Russian, this gets delightfully...messy.

Trump tells Saudi leader U.S. ready to help protect Saudi security: SPA https://t.co/MuDmNVZsfr

Ten small, unsophisticated drones controlled by houthi rebelsjust knocked out half - HALF!! - of Saudi Arabia’s oil production, or 5% of global supply. https://t.co/vUR5kgD69W

This is getting worse https://t.co/bl9cVtlCxd

The Saudi Embassy in Washington confirms that Trump called Saudi Crown Prince Mohammed bin Salman today and discussed the recent attacks on Aramco oil facilities @NBCNews

....between our two countries. I look forward to continuing those discussions after the Israeli Elections when we meet at the United Nations later this month!

#Pompeo directly implicates #Iran in Aramco Attacks in #Saudi. Just as Trump 📞 MBS, says US “supports for Saudi Arabia’s self-defense” https://t.co/dr63jTU0kF

Note also Pompeo reference that attacks on #Saudi may not have come from Yemen. Other suspect is Iraq . Either way this is a very dangerous situation involving multiple regional states, proxies. The Middle East, once again on the brink...

Top story: Drone Strikes Spark Fires at Saudi Oil Facilities - WSJ https://t.co/BvNG1fVIlh, see more https://t.co/XA7n9nONNC

Prelude to a regional war. https://t.co/1L2FpPR3uu

Over 91 million people in #Russia, the US, and #NATO-allied countries might be killed or injured within 3 hours following a single nuclear warning shot. https://t.co/02Np6KlCRc

"There is no evidence the attacks came from Yemen." https://t.co/Qv3O8mYTqd

What goes up... https://t.co/smUcmXX1CR

Interesting large tunnel and structure constructed off main road 39.093124° 126.320256°

Sweeper trucks are especially helpful for blocking cameras while a murder takes place outside red square. https://t.co/6tvxeuKm4O

Critical missing parts to confirm what specific cruise missile we're talking about : - Wings (fixed or deployable, Quds-1 or Soumar/Hoveizeh) - Engine (Soumar or Hoveizeh) https://t.co/TNApT3oQsf

Found in Saudi sand dunes: remains of Houthis "Quds" cruise missile.

Speculation scare or not. I'm gassing up. 5% of global production down? I hope that's an error. https://t.co/aiOFmMWAvN

IDF investigating after a bag containing 17 guns and other weapons was found by IDF forces next to the #Lebanon-#Israel border fence near the northern town of Metula. (Jpost)

"There is no evidence the attacks came from Yemen." https://t.co/Qv3O8mYTqd