Four pressure drawdown/buildup tests were analyzed and interpreted to characterize the Travis Peak C-1 sand in the east Texas No. 5 Howell well, a special field test conducted for the Gas Research Institute. The four tests were performed before a minifracture, after the minifracture, and after the main fracture (two tests). The test data set was made available to several research organizations including the Morgantown Energy Technology Center. The results of these tests were studied by two groups at the Morgantown Energy Technology Center that used two different methods to provide a thorough and comparative analysis of the data. The body of this report summarizes the results of both analyses. The appendices contain detailed calculations that support the results of the two analyses. The pre-fracture buildup test was executed and the data were analyzed in order to establish base line reservoir properties, such as reservoir permeability. The pressure transient tests that were conducted after the main stimulation were analyzed to (1) describe the induced hydraulic fracture through derivation of fracture conductivity and effective fracture half-length, and (2) assess the induced fracture's efficiency with respect to the type and volume of fracture fluid and the resulting gas deliverability of the zone. These objectives were met despite data anomalies, which were characterized by abnormal increases of pressure at later times that generally corresponded to the beginning of the infinite-acting, radial flow period. The primary analysis method for determining formation permeability was type-curve matching of pressure-time data. 10 refs., 10 figs., 5 tabs.