The survey and comparison of forward combustion gasification models aha been extended to incorporate analyses with each of the six computer programs included in the study based on data representing two oxygen/steam injection f field experiments. Those experiments are the Hoe Creek III and Rawlins II field tests. This report presents the simulate results obtained with each model for those two field tests and provides an indication of the applicability of each model to such tests. Modifications made to the computer codes to enable them to accommodate a variety of injection gas compositions ate discussed. Further comparisons of the computational features of the six computer codes are given. Some revised results from the previously reported model comparisons for Hanna III, Hoe Creek II, Pricetown I and Rawlins I field experiments are included, abased on data for those tests in the revised LLNL UCG Data Base which differ in some respects from those published in the original edition. More details are provided concerning the capabilities and limitations of each model.