The Port Neches CO, flood shown in Figure 1, is a joint operation between the Department of Energy (DOE) and the Texaco Exploration and Production Inc. (TEPI) that has been operating for nearly four years. The project performance during the past year has been adversely affected by several factors including: Water blockage, low residual oil saturation and wellbore mechanical problems. TEPI attempted to test a new procedure in an new fault block using CO, to accelerate primary production in order to improve the primary reserves net present value. the test was abandoned when the discovery well Polk B#39 for the Marg Area 3 was a dry hole. Also, during this period TEPI terminated all new CO, purchases from Cardox for economical reasons, while continuing to recycle produced CO,. A data base for FDD reservoirs for the Louisiana and Texas Gulf Coast Region was developed by LSU and SAIC. This data base includes reservoir parameters and performance data for reservoirs with significant production and OOIP volumes that are amenable to CO, injection. A paper discussing the Port Neches CO, project was presented at the 1996 SPE/DOE Symposium on Improved Oil Recovery.