Of oourse it is only my idea that companies are undertaking "due diligence" on Tallaganda and Zola.
If you have a little time on your hands you might like to read about the "due diligence" procedure.
http://www.digitaldataroom.com/What-is-a-Data-Room.html
My guess data in the Data Room in this case would include seismic data, drill logs, consultants reports etc