worth having a look at., page-110

"Csg wells flow at VERY very low rates due to the iimpermable nature of the coal seam cormation. pretty much its the tightest form of gas you can get and it requires "

TNPs last presentation showed an annual daily prodn of around 65MMscf a day from about 52 wells at its peak
So each well was making at least 1MMCF a day
1 MMCF = 1.05GJ = about $7,500 a day
using SEH lifting cost = US$mcf = 0.93 = $930.00

then $7500 - 930 = $6570

Say well cost $750,000

then payback is $750,000/6570 = 114 days

doesnt seem to long to me and is the ace of spades result Johno did not produce.