For what it is worth, here is my IGV for Walyering
NOTE - this does not include the value of Condensate.
I agree with
@Lethal70, with production licence granted, a valuation on revenue is the most appropriate method.
And
@Goldfinger99, you can value Walyering on that discounted cashflow basis, but you need to consider future cashflows from Gurvantes, Condor, to get a complete picture of TPD. Alternatively, add IGV's for Gurvantes and Condor based on 2C & 2U to your Walyering cashflow valuation, and you will get a more accurate position of today's value. MST report is useful in that regard.
JMO. DYOR.