I wouldn't dig to deep into fluid recovery from GLL and STX as a peer comparison to Myall Creek. they are totally different beasts
STX & GLL both deep coal seam gas wells where as armour energys Myall 4A is a conventional gas well
COAL SEAM GAS Gas is held in coal seams by burial pressure and water so the formations naturally have water When water is pumped out of the coal seam, total pressure falls and the gas begins to be released
Armour is a conventional gas After a well is drilled, oil and gas is extraced by the natural pressure from the wells so the only fluid recovery is the frac stimulation fluid witch ultimately carries the propant into the zone.
GLL just reported 20mscf/d gas rate and only very early days