You haven't read the many previous posts which covered this. There will be NO liquidation distribution (other than what they have in petty cash). After termination on April 2015, the mineral rights revert back to Conoco. They are NOT sold with the proceeds distributed to unitholders. This is clearly stated in the prospectus and you can find the relevant except in recent posts on this board.
I don't know how he comes up with the $8 estimate, but bottom line is that you get the distributions for another 4 1/2 years and that is it. There is no significant liquidation distribution at termination.