Australia's Bonaparte basin has attracted little of the country's exploration investment over the last decade, well behind the more prolific North Carnarvon and Browse basins. In the Bonaparte, just 54 mmboe of mostly gas resource was discovered over the period. Operators face significant obstacles to monetising discoveries, and none of this resource is considered commercial at current prices. The basin includes petroleum systems of Mesozoic and Palaeozoic age, which can be divided into several sub-basins including the Sahul Platform, Vulcan Graben Sub-basin and Petrel Sub-basin. The majority of resources discovered lie within the north-eastern Sahul Platform, but given the challenges of monetising gas, we expect operators to focus on the more valuable, oil-prone Vulcan Graben Sub-basin going forward. Future discoveries are expected to be small, but the liquids-rich nature of the play supports high unit development values. Full details are available for download in pdf and xls format.