AIM: To mature an intra-Pretty Hill Sandstone lead, which had been observed from the 1986 Lake Eliza Seismic Survey to exist as an unfaulted four-way dip closure within the downthrown fault block on the northern flank of the Lake Eliza High, and also to further detail a similar dip closure within the downthrown fault block on the northern flank of the Camelback High. METHODS: Sixteen lines totalling 141.9 line kms of 30-fold, good quality, mainly Vibroseis-sourced data plus some explosive-derived data were acquired during the period 20/2/88 to 23/3/88, and interpreted in conjunction with a re-interpretation of relevant lines from the 1985 Konetta Seismic Survey and the 1986 Lake Eliza Seismic Survey. Three prominent local reflective events were mapped: the top Pretty Hill unconformity, plus upper and lower intra-Pretty Hill markers. RESULTS: It is recommended that both prospects targetted by the 1988 infill seismic grid now be drilled: the Lake Hawdon prospect, to test a fault-independent structure with clear evidence of intra-Pretty Hill reservoir and seal; the downdip Camelback (later called Konetta) Prospect, to test both a top Pretty Hill fault-independent closure, where the Eumeralla Formation acts as a seal, and a separate intra-Pretty Hill closure located immediately beneath.