A true in situ processing technique will be employed at the Talley-Frac site to effect recovery of shale oil. This process involves fracturing of oil shale using chemical explosives and in-place combustion retorting. Under controlled conditions, a minimum amount of residue kerogen is used in the combustion process. The majority of the recoverable oil is transported to the production well region located ahead of the flame front. Air is continuously injected into the retort zone to sustain and control the combustion process. Since the technique employs no conventional mining and minimal surface perturbation, the degree of environmental impacts is less than with other oil shale processing methods. Figure 1-1 displays the proposed process for the recovery of in situ oil shale at the Talley Frac site.