MP,
I'm very interested in the dynamics of the 'thrusting off the top' and how that all works given we are 500 metres above and some 28 km's away.
I think you'll find most of the drilling thats being twined was in the 90's, early 2000's from my reading. But I'll stand to be corrected...
Interested to hear more of your source info.
cheers
squiz