One of the technologies being advanced on an experimental basis for recovering heavy oil reserves is oil mining. So far, little has been done in this field, particularly in the United States. Because of this situation the US Department of Energy commissioned this study to determine the technical and economic feasibility of recovering heavy oil by mining or mining-assisted methods. The project consisted of the following three tasks: (1) evaluate the heavy oil resource amenable to mine production; (2) evaluate mine technology; and (3) develop preliminary mining concepts for heavy oil resources. Volume II contains Task II and Task III. Task II presents a historical review of heavy oil projects through current and planned projects. It also details various mining methods applicable to heavy oil mining. Task III describes the development of two site-specific heavy oil mining operations. 27 figures, 49 tables.