coal bed methane exist

        Where does coal bed methane exist?

      According to the CBM Association of Alabama, 13% of the land in the lower

      48 United States has some coal under it, and some of this coal contains

      methane - either in the form we know as traditional natural gas or as CBM.

      According to the United States Geological Survey, the Rocky Mountain

      Region has extensive coal deposits bearing an estimated 30-58 trillion

      cubic feet (TCF) of recoverable CBM. While impressive, this represents

      only one third of the total 184 TCF of natural gas in the Rocky Mountain

      region (Decker, 2001).