The oil concentration on the 5m zone can be indicative of more oil in the play. The National Oil company JV partner can choose to further fund HyperDynamics and extend the lease if they wish. This is one of the perks of being a government entity.
Just cause they were drilling 75 m doesnt mean they need 75 m to be viable its like definition drilling for a mine once u hit something ypu expand the drillomg zone this will grant them an extension to delineate the deposit just watch