To better understand the process of fracturing tight gas sands, a comprehensive data set was gathered and analyzed for the Bossier formation in the Dowdy Ranch field.The bottomhole treating pressures were higher than expected on the basis of the measured stress profiles. Effective fracture lengths derived from pressure-buildup analysis and history matching of production data were significantly shorter than designed fracture lengths (or those predicted from uncalibrated fracture models). The data collected and analyzed provided valuable insight into the performance of water and hybrid fracturing treatments in tight gas formations.