I have no idea what work they are doing or how long it might take. Hydrocarbon systems are complex and because they lie miles below, making it is impossible to measure every variable that might contribute to the success or failure of a project. I do not know if they encountered wet reservoirs with gas. If they did, I just commented that that would add complexity and a little more uncertainty to the model unless some obvious reason for what they found was evident (like a fault, etc...). A successful hydrocarbon play requires organic source material, temperature (maturity), a migration pathway to a trap (structure with seal), and a reservoir. Failure of anyone component results in a dry hole.