Good to remember that the value of GDN will not be only revalued on the flow rates, but the entire worth or value of PB#3 well over it's entire life span.
If PB#3 is worth $50,000,000 over its life. GDN and as such its share capital will be valued up by $50,000,000.
Didn't someone say a well nearby has been flowing now for 40 years....