They run it like a mini international airport - without the commercial traffic - bar the Islander doing the Island run.
Oban is a council owned airport = jobsworths, work to rule etc.
As I understand the historical situation, they saw a previous manager / leaseholder making a good profit and turfed him out, so they could make a profit for themselves. Unfortunately, most councils don't know how to run airfields for a profit and the employees don't really give a toss either. No-one even came out from the building when I went there last time. Mind you, it was raining.