This report provides an assessment of a large-scale foam fracturing test performed by the Peoples Gas Company in cooperation with the Energy Research and Development Administration (now the Department of Energy) in Mercer County, PA. The test was designed to evaluate gas productivity of the Devonian Shale in a currently non-producing area, and was to utilize 270,000 gallons of nitrogen/water foam as the fracturing fluid and 324,000 pounds of sand proppant in a massive stimulation attempt. Unexpectedly high treating pressures encountered during the frac job as well as a mechanical packer problem caused a catastrophic downhole casing failure and the stimulation test could not be completed. The report describes the aborted foam fracturing operation and its aftermath. After extensive remedial efforts, the well was plugged and abandoned, but the Devonian Shale, despite the stimulation failure, produced some evidence of free gas in place.