Did some checking back and it would appear that at 27/10/08 NWE held 10% of TP15 along with Roc Oil and Arc Energy. By June 2009 NWE had acquired 100% of TP15:
https://www.asx.com.au/asxpdf/20090731/pdf/31jwkff12c42cc.pdf
Come September 2009 they decided on an airborne Full Tensor gravity Gradiometry imaging (FTG) Survey over TP15 due to a lack of seismic due to a combination of shallow water and complex geology:
https://www.asx.com.au/asxpdf/20090907/pdf/31kldr07kjy28l.pdf
Then in January 2010 Xanadu and Redhill South were confirmed as the prime targets in TP15 with Redhill South considered to be considerably smaller than Xanadu, well defined, easier and less expensive to drill than Xanadu:
https://www.asx.com.au/asxpdf/20100118/pdf/31n6ms7pvq8rzt.pdf
By June 2010 NWE had selected Red Hill South as the most prospective drill target:
https://www.asx.com.au/asxpdf/20100728/pdf/31rjx9k3h4tdp0.pdf
It would appear there was no 3D (only the FTG ) and that NWE selected Redhill South first for drilling, possibly due to being "well defined, easier and less expensive to drill than Xanadu".
Interesting bit of history. Takes me back to the "King Baz" days.
