Comprises details of the operations, field acquisition, results and interpretation of the seismic survey. The survey was designed to extend detailed grid coverage over existing leads and prospects in PELs 5 and 6 and, in areas where there was no existing cover, to provide reliable reconnaissance data. The survey has led to the recognition of a number of new leads and to the upgrading of previously recognised leads. A number of prospects were matured for drilling. Separate geophysical interpretation reports were produced for each block, given area or prospect and contain a detailed discussion of the geology of the area, the existing geophysical information, the mapping technique used, and the results of the survey. Herein are: Arckaringa Block (Arckaringa area, indexed separately); Arrowie Block (Moorowie, Yalkalpo Synclines, indexed separately); Dalhousie Block (Dalhousie area, indexed separately); Koonchera Block (Southern Regional Area); Merrimelia-Innamincka Block (Deparawie, Twelvetree Area); Murta Block (Arcoona Area); Murta Block (Bowood Area); Murta Block (Murteroo Area); Murta Block (Walpaya, Pando South Area; Patchawarra East Block (Lamdina, Kenny, Tooroo, Tallerangie, Northern Regional Area); Patchawarra Southwest Block (Mulanie, NW Regional Area); Patchawarra Southwest (Metakoo, Kuenpinie Area); Pedirka Block (Killumi, Mokari/Glen Joyce, Oolarinna, Pediban Areas, indexed separately); Tinga Tingana Block (Towanda/Tukinya, Cherri/Tatru Areas); and Toolachee Block (Toolachee South Area).