The economics can be spun any which way but I’m pretty sure that hitching your future to oil prices isn’t very clever.
As for Defence
If Scotland were independent it would present the English with a problem: where are they going to get their infantry from?
An independent Scotland under the SNP would basically be a pacifist country, much like Germany. Anyone think they are going to need a bunch of expensive fighter aircraft on the North Sea coast? Goodbye RAF Lossiemouth.
Faslane? They are going to want those jobs in Portsmouth, Plymouth or maybe Belfast right? Goodbye to the Gairloch, it was special…..and wet.
I’m not going to go as far as to say “Don’t let the door hit you….etc etc”, I mean who am I to judge, I left the place and never looked back. Me, I like England and the English. Especially in London.