The partners Alabama A&M University, Denbury Resources Inc., Geological Survey of Alabama, Southern Company, University of Alabama, University of Alabama at Birmingham, and University of North Carolina at Charlotte will conduct CO2 injection tests in Citronelle oilfield in Mobile County, AL. The project will introduce CO2 enhanced oil recovery (EOR) for tertiary recovery from Alabama's uniquely structured oil reservoirs, providing oilfield operators and CO2 producers with improved estimates of oil yields from EOR and the capacity of depleted reservoirs to sequester CO2. The research work will improve the reliability of computer simulations of oil yield from CO2-EOR and calculations of sequestration capacity and the rate at which CO2 can be introduced into underground formations. The simulations of Citronelle field will be integrated with computer visualizations of the migration of oil, water, and CO2, making the results accessible to reservoir engineers, geologists, utility planners, and climate-change modelers