The Geological Survey of South Australia, in partnership with Geoscience Australia, is undertaking a regional pre-competitive geoscience research drilling program in the far west of South Australia called the Coompana Drilling Project. The Coompana Province, located between the western Gawler Craton to the east, the Musgrave Province to the north and the Madura Province to the west, is one of the least understood and explored geological provinces remaining on the Australian continent. Bedrock in the region is completely covered by Neoproterozoic to Cenozoic sediments, and there are no known basement exposures. Up to 18 new drillholes were planned as part of this project to intersect as many of the different geophysical domains as possible, as delineated from the recently acquired Coompana airborne magnetic/radiometric survey and the Coompana regional gravity survey. The primary objective of the Coompana Drilling Project is to obtain high quality drill core samples from the untested basement units beneath the Nullarbor Plain. The outcome of the Coompana Drilling Project will be to provide our stakeholders with new pre-competitive data and a geological framework that more clearly defines the geology and prospectivity in this region. This report provides the first release of the preliminary data collected on-site during the drilling of drillhole CDP002. This compilation includes well completion information, location and site access data, results of pre-drilling cover geophysics and depth estimates as well as the field geological logs and acquired down-hole geophysical data. Hole CDP002 targeted a circular magnetic feature, about 11 km in diameter, which appears to intrude into the south-eastern quadrant of the large Coompana Magnetic Anomaly. This circular feature has a concentrically zoned rim about 2 km wide, and its core displays variable magnetisation. The chosen drill site was located right in the centre of the feature, corresponding to a strongly remanently magnetised zone. The targeted feature is thought to be magnetically similar to several other remanent magnetic bodies in the region. An historic exploratory hole drilled near the south-eastern margin of the Coompana Magnetic Anomaly (KN1) by Carpentaria Exploration in 1981 had encountered gabbro at a depth of 340 m, and so it was prognosed that the basement in CDP002 would comprise mafic intrusive rocks, which proved to be the case.