Not to worry
SA is running out of electricity anway so it won't matter that nothing works.
298 publicly visible posts • joined 9 Jul 2009
In a Japanese town I visit fairly regularly for its hot springs is a temple the name of which is enticingly translated as the "Happy God Temple". The central shrine of the temple is a rock formation portraying Mother Nature's representation of lady parts. http://www.mediafire.com/view/0za2jypjj5zjn/Japan#gl6q3bq9dnet946
The link is NSFW but OK for worship
And that is the major weakness of an aircraft carrier. It needs lots and lots of aviation fuel because whatever its storage capacity might be, in intensive flying operations, it needs topping up very frequently. And if it's non-nuclear engined, it needs a lot of fuel just to keep steaming round. A cunning enemy wouldn't both trying to penetrate a carrier air group's defences - simply disrupting the (very) vulnerable flow of supply ships would bring things to a grinding halt very quickly.
"It may prompt Oman to publicly cut ties and force the base to close?"
Unlikely, the ties go very deep particularly with the UK - and even the US (recall the abortion of the Teheran hostages rescue was mounted from Oman). BT has been well established since at least the mid-1980s to my knowledge. MI6 used to run the euphemistically-named Oman Research Department and probably still does.