Ok let's say taxes are 25%.

75% x 75,000t x $20,000/t = $1,125,000,000 after tax profit/yr. That.s $1.1 billion profits per year.

Net present value at 8% discount over 53 years gives uus $1.35 billion / 100,000,000 shares = $135/share right now today. 

As the years progress beyond that, we are looking at $500 to $1000/share even higher.