NPVs come to

$1.36, 15% Discount Rate (where we touched today)

$2.24, 10% Discount Rate (our old high)

$3.25, 7% DR

$4.31, 5% DR

My apologies. I had a share dilution factor in there that I'd forgotten about. (1%/year, so that total shares out would be ~366M in 35 years or so).

Without the dilution factor, sticking to 258M shares out, NPVs come to:

$1.83, 15% Discount Rate

$3.02, 10% Discount Rate

$4.38, 7% DR

$4.5.82, 5% DR

Actually, when you think about it, the share dilution should probably be taken into account when attempting this sort of thing.