grieve upper sands

What does everyone think the Grieve Upper Sands is worth if ELK finds oil when drilling the Grieve injection well?

History
Grieve OOIP 51 mbo
Grieve has eight sandstone formations above the muddy reservoir.produced from 4/8 sands

At least one of the remaining sands must be productive as they have had oil flows out of existing wells

Upper Sands OIP could be as high as 50 mbo as which 1/3 may be recoverable.

If one Sands are productive this may mean 4mbo recoverable
If two Sands are productive this may mean 10mbo recoverable

ELK plan to test the Upper Sands when they drill the injection well 2Q, if sucessful the UpperSands would underpin the funding for all of the EOR.

What do others think?