My bus to the airport is now at 14:05 so I'm good.
Dat, at the end of the day, which ever way you calculate (guess, taking into account all taxes, or comparables) you can always refer to a worth in terms of $/barrels of oil. This Value is dependent on exactly what you said, possible/propable/proven etc
That is why on my spreadsheat I have a spread starting at $1/bl to $12/bl. The more you become confident about the price to more to the right you choose the value.
As well the second part of the spreadsheet take into account a different way that other posters said that one should calculate the value. In the end, the PPS are similar.
I think the bottom line is, one can easilly see that we are worth more than .40 .50 or .60 PPS!
Cheers
Brez