This report briefly summarizes the results of a four-year study which consisted of four tasks: shale characterization; in-situ fracturing and assessment; in situ extraction trails; and environmental, public policy and legal assessment. Forty one topical reports issued during the project are listed. A wealth of data has been published on the chemical, physical, geological, mineralogical and lithological properties of Antrim shale. Large numbers of stratigraphic cross sections and maps have been prepared. Much was learned in the fracturing experiments and extraction trials. Antrim shale was successfully ignited in situ in an explosively fractured site and low BTU gas was produced. However, as the formation was heated up the permeability decreased, and significant self sustained combustion was not achieved before work had to be discontinued. No significant impacts on the environment other than surface disturbance were observed.