any thoughts guys?, page-3

This is from the Carbon Energy Webpage:

Table1. Energy (PJ) potentially recoverable from 12km2 section of the Surat Basin

Total Area 12km2 Total
In situ Energy (PJ) Recoverable Energy (PJ)
Mining 120 M Tonnes 2400 800
(UCG) 120 M Tonnes 2400+22.8* 1257+22.8*
CSG CH4m3 2.175x106 82.6 59.5


* CH4 contained within the coal resource.

Why can't UCG have a tenement large enough to meet the project needs, perhaps even pay the CSG the profit they would make from the 60PJ of gas.