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The Petroleum Systems of the Bonaparte Basin

Created 17/10/2025

Updated 10/01/2026

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The Cambrian to Recent Bonaparte Basin is located on the North-west shelf of Australia and extends 329,000 sq. km offshore and onshore. The region is an established hydrocarbon province with a number of commercial discoveries. New infrastructure is being constructed within the region, such as the Bayu-Undan LNG plant, with a number of giant gas accumulations yet to be developed. The area has remaining oil and gas potential, particularly in the Vulcan Sub-basin, Laminaria-Flamingo High and northern Sahul Platform areas, with additional discoveries likely within the next decade. The main exploration risk in the region is fault seal breach.

The Bonaparte Basin has seven petroleum systems based on geological and geochemical information. The systems are concentrated in the Jurassic, Permian and Carboniferous: Jurassic Elang-Elang (!): Sahul Syncline, Flamingo High Plover-Plover (.): Malita Graben Sahul Platform Vulcan-Plover (!): Vulcan Sub-basin Permian Hyland Bay-Hyland Bay (?): Kelp High Hyland Bay-Keyling-Hyland Bay (.): Central Petrel Sub-basin Permian-Hyland Bay (?): Londonderry High Permo-Carboniferous Milligans-Kuriyippi/Milligans (!): Southern Petrel Sub-basin (!) : Known hydrocarbon-source correlation (.) : Geochemical evidence for a hypothetical system (?) : Lack of direct evidence for a speculative system

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Additional Info

Field Value
Title The Petroleum Systems of the Bonaparte Basin
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/a61dac48-28a1-4e69-8f7a-d433fa28c818
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/11/2025
Geospatial Coverage
Map data © OpenStreetMap contributors
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      [
        131.0,
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      ],
      [
        125.5,
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      ],
      [
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      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "The Petroleum Systems of the Bonaparte Basin". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/the-petroleum-systems-of-the-bonaparte-basin