Reserves24 Nov 2019 09:21
Estimated reserves are classed as P10,P50,P90 where P50 is the mean at Saffron it is 11m barrels.
To move an estimated reserve to a commercial reserve the company has to have the technical and commercial means to extract it. It can then move from a P50 reserve to proven,probable,possible.
proven reserve 90% chance being recovered
probable with 50%
possible with 10%
Since 2013 these have been classed as 1P,2P and 3P
Where 3P is proven+probable +possible
It is fairly expensive to obtain this information, so most junior companies only issue 3P for certain fields or prized assets
Why issue it, well the investment community uses these figures as their investment tools and without them they won't invest
Canada have made a law that companies issue 1P and 2P figures
On Aim 3P is the norm
Big companies use these figures to buy in or farm in, so smaller companies may not issue them unless they have reason to do so