Oil: Houthi Drone Strike A Game-Changer In Saudi - Yemen War

I don't know if I would go so far as to say it will end the war but in certainly gives Saudi Arabia something to think about.
From Moon of Alabama:

Long Range Attack On Saudi Oil Field Ends War On Yemen

Today Saudi Arabia finally lost the war on Yemen. It has no defenses against new weapons the Houthis in Yemen acquired. These weapons threaten the Saudis economic lifelines. This today was the decisive attack:

Drones launched by Yemen’s Houthi rebels attacked a massive oil and gas field deep inside Saudi Arabia’s sprawling desert on Saturday, causing what the kingdom described as a “limited fire” in the second such recent attack on its crucial energy industry.
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The Saudi acknowledgement of the attack came hours after Yahia Sarie, a military spokesman for the Houthis, issued a video statement claiming the rebels launched 10 bomb-laden drones targeting the field in their “biggest-ever” operation. He threatened more attacks would be coming.

New drones and missiles displayed in July 2019 by Yemen’s Houthi-allied armed forces

bigger Today's attack is a check mate move against the Saudis. Shaybah is some 1,200 kilometers (750 miles) from Houthi-controlled territory. There are many more important economic targets within that range:

The field’s distance from rebel-held territory in Yemen demonstrates the range of the Houthis’ drones. U.N. investigators say the Houthis’ new UAV-X drone, found in recent months during the Saudi-led coalition’s war in Yemen, likely has a range of up to 1,500 kilometers (930 miles). That puts Saudi oil fields, an under-construction Emirati nuclear power plant and Dubai’s busy international airport within their range. Unlike sophisticated drones that use satellites to allow pilots to remotely fly them, analysts believe Houthi drones are likely programmed to strike a specific latitude and longitude and cannot be controlled once out of radio range. The Houthis have used drones, which can be difficult to track by radar, to attack Saudi Patriot missile batteries, as well as enemy troops.

The attack conclusively demonstrates that the most important assets of the Saudis are now under threat. This economic threat comes on top of a seven percent budget deficit the IMF predicts for Saudi Arabia. Further Saudi bombing against the Houthi will now have very significant additional cost that might even endanger the viability of the Saudi state. The Houthi have clown prince Mohammad bin Salman by the balls and can squeeze those at will.

The drones and missiles the Houthi use are copies of Iranian designs assembled in Yemen with the help of Hizbullah experts from Lebanon. Four days ago a Houthi delegation visited Iran. During the visit Supreme Leader Ayatollah Ali Khamenei for the first time publicly admitted that the Houthi have Iran's support:....

....MUCH MORE

See also yesterday's Thompson Reuters Foundation's: Houthi drone attack on Saudi oilfield causes gas fire, output unaffected