I've been a very long term holder but have sold 80% of my...

I've been a very long term holder but have sold 80% of my shares, at a very tidy profit, due to the ambiguity re the performance of the Surat basin wells. They may be profitable, and I hope they are, but the failure of ID and Co to delineate the performance of said wells has been flashing a bright red light in my mind for a while and ... after many years in the market my first course of action when uncertain is ... sell. As I still hold $20k worth I hope I'm jumping at shadows?