Al Qaeda has and is making war on the Saudi's and this is the result. It's oil, nothing more, protecting its flow from one despot to another worse ( if possible, ) despot. The drone base reinforces the Saudi's strength and sense of protection, as you know, the Saudis can't fight their way out of the bathroom.
In Qatar, Kerry seeks to convince Gulf Arabs on Iran deal (Reuters)
from the article: Secret American drone airbase in Saudi Arabia exposed