The main objective of this study is to determine the technical and economic feasibility of supplying carbon dioxide for use in enhanced oil recovery, from other than naturally occurring sources, to all suitable oil fields. For the most part, prior studies have not adequately addressed availability, processing, and economics of CO/sub 2/ supply from by-product sources. Where appropriate, results of previous studies have been utilized; care has been taken to minimize any duplication. This study provides exhaustive data on CO/sub 2/ supply from by-product sources and the preliminary costs associated with these sources. Section 2 provides information on target reservoirs from CO/sub 2/ flooding, and the ultimate CO/sub 2/ requirements for CO/sub 2/ flooding in these reservoirs. Section 3 provides detailed information on by-product CO/sub 2/ supply sources. The CO/sub 2/ availability from power, cement, ammonia, ethanol, and ethylene oxide plants, and refineries, the quality of gas from such plants, and their locations are identified. Section 4 provides an analysis of the regional supply/demand balance. Section 5 provides a detailed discussion on the techno-economic analysis of CO/sub 2/ recovery systems. Section 6 provides information on CO/sub 2/ transportation, storage, and injection costs. Section 7 provides information on the feasibility and economics of CO/sub 2/ generation at EOR sites. Section 8 provides the methodology to determine total CO/sub 2/ costs.