>Maybe there is a position left to be added to Phase II, or subject to payout in cash if XOM walks.
I don't see how that can be. Falcon first said they thought there was enough money to do 2 additional fracs on the F1, and then after doing 1, they said "This third fracture test completes Production Ventures East Hungary Kft (ExxonMobil), and Hungarian oil and gas firm, MOL's, US$50 million financial obligation under the Initial Work Program, and completes the Initial Work Program itself, under the Production and Development Agreement among Falcon, ExxonMobil, and MOL.
That leaves very little doubt that every last penny was spent. Of course we also know that $5 million went towards the Mako-6, therefore the Foldeak-1 cost at most $45 mm.