Perenco is an oil company so the bottom line will be very, if not the most, important for them.
If Bristow wants to retain this contract they will have to be competitive on price, something they probably will be seeing what the effect of losing this contract would be on their Norwich base.
Heard down the grapevine that Weststar & Gulf Helicopters are both bidding for this work as well which will sadly only accelerate the race to the bottom.