DauphinDude:
I wouldn't expect Stavanger as basing, they barely have any flying from that base anymore, as Bristow has won all the contracts at Sola.
They fly ad-hook and Shuttle/SAR at Ekofisk at the moment, but Bristow has won that too, starting in 2014...
More likely bases would be Kristiansund, Brønnøysund or Florø.