Tryoty,
If one is to assume 2B per block (2,3,4), at an estimation of $8/barrel profit. My spreadsheet gives $11.20 PPS. Which is pretty close to just doing the math of ERHE share, ball park of 1Bbl / 710M OS (even though it is closer to 714 now I believe) x $8/bl = $11.28.
If any one wants it, I have posted a spreadsheet before (simplistic) which you put in the amount of oil found per block and it calculates automatically the PPS for many different situations.
Brez