To add to my earlier post re NSW CSM potential...From MPO's site...

To add to my earlier post re NSW CSM potential...
From MPO's site re PEL285 AJL/MPO:
...the coal bearing sequence in the Gloucester Basin is approximately 210km2. It contains around 11 coal seams thicker than 2.5m, with an average net coal thickness of around 40m at depths of 200m to 700m. Measured average gas contents range from 12 m3/t to 20 m3/t (daf), with methane contents of 95-99%. Measured coal seam permeability is also high, ranging from around 1mD to greater than 300mD at depths of 100m to 500m, with an average permeability at around 10mD to 20mD.

From NSW Dept.Prim Industries...Mins & Petroleum site re Sydney Basin Potential. SGL tenements cover 80+% of the Basin.

Coal Seam Methane
The Sydney Basin has favourable geological attributes for the development of a coal seam methane industry:

There are enormous reservoirs of coal seam gas at economically acceptable depths throughout the basin.
The majority of the coal seams are sufficiently thermally mature to place them well within the gas generation window.
The cumulative reservoir thickness is similar to, and in many cases exceeds, the minimum requirements established by successful overseas projects. There are many areas where cumulative coal thickness is well in excess of 20 metres, and numerous individual seams with reservoir thickness greater than 2 metres.
The interburden distances between reservoirs are small, with the majority of production horizons in the coal measures sequence occurring within a 100 to 200 metre interval.
Many seams have competent lithologies bounding the production interval. This will assist in ensuring that stimulation treating pressures are contained and the risk of breakout minimised.
Gas contents are, in many areas, in excess of the minimum requirements for commercial production. Some seams have contents of 18 cubic metres per tonne.
Gas compositions are attractive. The average methane content ranges between 90 and 95 percent and in some areas, the gas contains up to 5 percent ethane.
The majority of isotherm determinations conducted to date, in combination with the desorption data, indicate that the seams are gas saturated. This, together with the fact that many seams do not contain large quantities of water, indicates that gas production would initiate shortly after water production commenced.
These relatively low volumes of groundwater would assist in maintaining low production costs and the relatively good quality of the water would minimise the cost of its disposal.
Cleat systems are well developed in most seams and many of these systems have not been affected by infilling of mineral matter.
Permeabilities are similar to those in other parts of the world where commercial production is undertaken. A number of seams have permeabilities which range from 5 to 10 millidarcies and some have permeabilities up to 30 millidarcies.
The deep underground collieries in the Sydney Basin are currently experiencing problems controlling the inflow of gas into mine workings. In the Hunter Coalfield the control of gas is likely to be a significant factor in the profitability of future underground operations. The current underground methods of reducing gas inflow are reaching technological limits. The recovery of gas using surface based stimulation technology may well be a viable alternative.

Sydney Gas Ltd has recently been granted a petroleum assessment lease over its Johndillo coal seam methane pilot project near Camden in the south of the basin. The granting of this type of lease will allow gas produced from the project to be sold rather than flared.

Coal Liquefaction
Coals in the Denman-Scone area of the upper Hunter Valley have been investigated for conversion to liquid fuels. All coals tested proved suitable as feedstock for liquifaction regardless of the process used. The conversion yields were satisfactory, the H/C ratio was satisfactory and the nitrogen, sulphur and oxygen levels compared more than favourably with northern hemisphere coals which have been tested for liquifaction uses.