OSA has 4 contracts, Truscott with 3 x S-92, Darwin with 3 x H175, Barrow Island with 2-3 AW139 and Karratha with 2-3 AW139, OSA operated more offshore aircraft on more contracts than CHC did before they bought them, just means in the future when the new contracts take effect all CHC's offshore work will be thru OSA.