The objective of this program was to compare the effectiveness of massive stimulation techniques with other novel candidate hydraulic treatments on gas wells drilled in the Appalachian area. Water and foam treatments were tested in the sandstones and cryogenic treatments were tested in the Devonian Shales. the program consisted of stimulating 13 wells with 18 treatments. Two wells were retreatments and one well was a dual completion. Sixteen of the 18 treatments developed gas production. One treatment developed no gas. One treatment fractured out of the target formation into a water bearing formation and drowned the well. Several extra tests other than those for normal operation were made for the program. These included special reservoir tests. Cores were obtained from one well in each area except the Clinton Sand. Core data were obtained from all area. The cores were distributed among Columbia, DOE and several other test laboratories. These cores were analyzed for gas content, total organic content, rock mechanic and physical properties, and chemical and mineralogical composition. The final report of these special tests which were subcontracted by Columbia and any others which add to the discussions in this report are included as appendices. The reports, with the minor exceptions mentioned above, from the organizations subcontracted by DOE are not included with this report since they have been submitted directly to DOE.