Thanks for the info...
Why do you think Oman is exempt?
I never even though about that, so am clueless in that respect.
Oman hasn’t suffered any serious infiltration by Al-Qaeda recently. The government there is reasonably popular from what I’ve read, and the sultan also lacks the stigma of close ties to the Saudis, unlike the king of Jordan and others. Oman is an ally of the other monarchies without doubt, but you won’t see them huddling with Qatar and Kuwait etc.
They stay out of the news, which is a good sign.