You assume that the aviation dept knows the advance plans of bp. The 40s people only found out that they had been "sold" the day it happened. The Clare platform and the rest of their west of Shetland operations will only support a max of 2-3 Pumas a day not 6. Remember that the perfect oil platform is one that is run from the beach and that is the oil companies goal so you can expect a rundown of offshore helicopter support as we get further into the 21st century.
HF