https://www.asx.com.au/asxpdf/20100118/pdf/31n6ms7pvq8rzt.pdf
The explanation to fig 4 indicates that they had seismic over Red Hill but the dialogue for Xanadu indicates that they had no Seismic as I read the announcements.
Thankyou Zepplin999 for your research.
It made me realize just how long I have been invested in NWE.