First, this writer would like to thank Thompson for the research he (or she) has done. Please read Gas Muse 4/18/2008 (below) for the latest (and most disturbing to date) comments and supporting links.
If you haven’t been keeping up, you should know this: there are way more questions that any of the “experts” either have answers for or are willing to share. Unless you have ALL the information, you should NOT sign a lease. Of course what you do with your property is your business. Friends, below are a couple of links to provide even more information for you. The first is from the NRDC. It suggests that a certain huge company, Halliburton, is doing their part to destroy the Rockies in their quest for natural gas.
http://www.nrdc.org/OnEarth/06sum/rockies1.asp#
The second one really takes the cake. How about injecting liquid waste into the ground as a method of “storage”. Review your lease to see if they can “store” material on your property.