In June 1981, the Department of Energy (DOE) elected to conduct a seismic evaluation of NOSR 2 in Utah. This survey was carried out by TRW for DOE as part of the resource assessment of the Naval Oil Shale Reserves. The objective of the seismic survey was to determine if there are any structures on the Reserve which may have trapped hydrocarbons. An evaluation of the results indicated the elongated anticlinal structure in the southeast corner (Tabyago Dome) does have dip reversal and that there is a closed structure. Centered in Section 21, T13S, R19E, that structure has a high probability of having trapped hydrocarbons. Any well drilled on that structure should test all the potential producing formations down to the Pre-Cambrian (15,000 feet). It is also possible that several stratigraphic traps exist on a north-trending anticline in R19E. The seismic survey was carried out during August-September 1981 when the Seismograph Service Corporation (SSC) shot an additional eight seismic lines over the entire Reserve. With the three existing commercial seismic lines, a total of 66.25 miles of seismic profiles were available for the evaluation. Additional geologic information from existing reports and data from producing areas which surround the Reserve also were used in making the final assessment. 9 references, 7 figures, 3 tables.