Well, that's a pretty shitty outcome for the US, so the KSA has a ton of leverage here and they know it.
> The United States was 61% energy independent in 2013, with net energy imports falling...
Yes, and this might be one of the reasons that Saudi oil prices were pushed down. Shale oil and fracking was becoming a problem and they moved to correct that. This also took care of the Canada problem as well, setting back development by another decade.
Don't forget the oil market is world-wide. The US could be self-sufficient but if oil is crazy expensive because Saudi Arabia is on fire that will wreck the economy.