AIM: To further delineate the Stockdale lead, the Churinga Prospect, the Sugarloaf Prospect and several small fault bounded leads along the southern side of the central uplift zone of the onshore Robe Trough, with the expectation of then being able to identify one or two candidates for the licence Year 4 commitment well. Faulted structural leads, particularly those in the vicinity of Nunga Mia 1, are now being regarded as more prospective, given the recovery of oil from that recent well. METHODS: Survey dates: 9/4 - 5/5/97. Energy source: Vibroseis, and Dynamite on 6 lines crossing Lake Eliza (total explosive coverage: 29.66 line km). VP/SP coverage: 20 000% (Vibroseis); 2 000% and 4 000% (Dynamite). Recording mode: 402 channel digital - I/O System I recorder. VP interval: 20.0 metres; group interval: 20.0 metres. RESULTS: 14 lines (8 N-S orientated, 6 E-W) totalling 166.4 line km were acquired by Geco-Prakla and processed in Perth, WA by Robertson Research. Vibroseis data quality was fair to good, and Dynamite data quality was poor to fair. 44 downholes were acquired concurrently by Velocity Data to allow reduction of the processed data to mean sea level datum. Prior to undertaking the survey, the operator made numerous scouting trips to the area and did considerable research into the local climate, geomorphology, environmental concerns, drilling conditions and technical constraints, which revealed that non-conventional methods would be required for the conduct of the survey portion over Lake Eliza. However, changed field conditions, especially of the water level and extent in the hypersaline lake, which had resulted from delays in the seismic crew finishing a previous contract in WA, necessitated a complete rethinking during the survey operation of what was a suitable, safe and efficient methodology for working on the lake component of the programme. The station recording order was changed, and specialized equipment such as hovercraft were mobilized in order to be able to acquire the seismic data. However, the hostile working environment of Lake Eliza inflicted a considerable physical toll on machinery and electrical equipment, and mentally on the personnel involved. Interpretation of the Stockdale Seismic Survey data by the operator achieved the main objectives intended, by better delineating the Stockdale and Churinga structures. The Stockdale lead was reduced to a smaller, fault bounded prospect, while the Churinga Prospect evolved to a firm, drillable status and is recommended as the next well target in the licence. The timing of structural development is, however, a risk factor for this prospect, since it may have post-dated the main hydrocarbon charge phase of migration from source rocks in the basal trough.