http://www.energyglobal.com/news/exploration/articles/Feeding-the-dragon-part-one-Chinas-energy-hunger.aspx "China’s massive coal reserves have also supported a sizeable coalbed methane (CBM) or coal seam gas (CSG) sector, with production in the North, Northeast, Southwest and Western regions. Production is slowly increasing, but there are growing challenges from technical/geological issues, regulatory issues, a lack of infrastructure, high development costs, and some mineral/land rights issues. Coal has also spurred some modest interest in coal-to-gas (CTG) projects, but high capital costs, infrastructure and water scarcity, along with emissions concerns, has slowed development."