It seems everybody is of the opinion that JV talks have been underway for sometime. Like MF said a JVP will have to have deep pockets, but if Exxon, Tullow, Repsol or other majors in that category are at the table, the cost of a JVP with CGX is pocket change for those players.
Since CGX is sitting on PPL's that go border to border across Guyana's offshore, becoming a JVP with CGX may have a future benefit to any JVP or may possibly be part of current negotiations.
I recall Energulf (ENG) a few years back having a 10% interest in a block offshore Africa and just prior to drilling the SP went from 1.00 to over 4.00 just on the anticipation of drilling.
If CGX retains a 30% to 50% interest after a JVP agreement is done who knows what the SP of OYL may be.