Reservoir modelers at the Morgantown Energy Technology Center (METC) are analyzing well test data measured at the Department of Energy's Multiwell Experiment (MWX). The ongoing data analysis is designed to characterize lenticular reservoir flow mechanisms and the effects of wellbore stimulation while testing and validating METC's reservoir models for low-permeability (tight) gas sands. Preliminary results included in this report pertain to the analysis of test data from Zones 3 and 4 of the Paludal Sandstone Formation. The report summarizes the procedures used in setting up the work, the results to date of reservoir characterization, and ongoing/near-future efforts. Work to date has shown that, with the availability of good input data, the METC reservoir models used are satisfactory for simulating the MWX well tests. Prestimulation well tests were easily simulated using the available laboratory measured reservoir parameters. However, post-stimulation well tests are currently being further studied and simulated, as stimulation induced formation damage and uncertain initial reservoir test conditions complicate the simulations. Ongoing efforts are also addressing pre-stimulation well tests of the Coastal Sandstone Formations. 10 refs., 20 figs., 2 tabs.