why sell 15% stake for next to 0, page-2

they haven't really sold it.. just vended their share of the lease into a public company, presumably so they can raise funds much more easily (much more difficult if kept private) for their other commitments. raising $21mil shouldn't be much of a prob now, particularly if the share price keeps on going like it's expected to

ownership of the main asset (the 15% stake) will change a little, but for the most part it will remain pretty much the same