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Bass Basin GIS project : an output of the Western Tasmanian Regional Minerals Program - political

Note: This metadata describes the dataset in accordance with the ANZLIC (Australia New Zealand Land Information Council) Core Metadata Guidelines Version 2.

Dataset citation

ANZLIC unique identifier: ANZCW0703004701

Title: Bass Basin GIS project : an output of the Western Tasmanian Regional Minerals Program - political


Custodian: Geoscience Australia

Jurisdiction: Australia



The following datasets have been cropped to the Geographic Extent Polygon.


This dataset (ANZLIC metadata 3559) represents the distribution of Petroleum titles (Pre 2002) for onshore and offshore Australia (clipped to polygon coordinate string). This attributed dataset is used in production of the "Petroleum Exploration and Development Titles" map published annually in April. Attributes and an additional lookup table contain information on the operator, dates of award and expiry, the number of 5' X 5' graticular blocks making up the title, the State which has jurisdiction, and the companies and their equity for each title.


Oil and Gas pipeline infrastructure and resources fields.

ANZLIC search words:

  • ENERGY Petroleum Exploration
  • MARINE Mapping

Spatial domain:

locality map

Geographic extent name: BASS STRAIT - BASS STRAIT - Ocean and Sea Regions - Australia

Geographic extent polygon: 143 -37, 149 -37, 149 -43, 143 -43, 143 -37,

Note: The format for each Geographic extent name is: Name - Identifier - Category - Jurisdiction (as appropriate) See GEN Register

Geographic bounding box:
North bounding latitude: -37 °
South bounding latitude: -43 °
East bounding longitude: 149 °
West bounding longitude: 143 °

Data currency

Beginning date: 2002-02-10

Ending date: 2002-06-10

Dataset status

Progress: In Progress

Maintenance and update frequency: Not Known


Stored data format:
DIGITAL - shp ArcView shape file ArcView Geographic WGS84
Available format type:
DIGITAL - shp ArcView shape file ArcView Geographic WGS84

Access constraints:

Contact the Senior Project Scientist to discuss user requirements and costs

Free Data Download

Data quality



This dataset is generated from converted Microstation files used in production of the "Petroleum Exploration and Development Titles" map. Attributes are derived from Geoscience Australia's corporate Oracle PTAG (Petroleum Technical Advice Group) database currently under construction. The files are converted to an Arcinfo dataset and reprojected from the captured AGD66 datum to WGS84 datum. The data is checked and corrected if need be to maintain topology and regions are utilised to store multiple entities representing a single title. Attributes are extracted from the PTAG database and joined, on the title name, to the spatial dataset.


These datasets are converted from Microstation format files used in a map "Petroleum Exploration and Development Titles" published annually in April. Attributes have been added to comply with data standards and minor coding of line work has been achieved using annotation from the map. Further data has been added, specifically for the Bass Basin region.

Positional accuracy:


Nominal Scale 1:5,000,000

Positional accuracy can vary as the spatial titles information is derived from a variety of sources. Data are supplied from the State and Territory mines departments as spatial datasets except Victoria who supply data as an ungeoreferenced CGM image (which is georeferenced in Microstation). These datasets are incorporated as-is so the positional accuracy is as supplied. The supplied accuracy of these datasets is not provided with the data.


Nominal Scale1:5 000 000

The positioning of data is highly subjective and should not be used as an accurate depiction of location.

Attribute accuracy:


Highly variable due to the varied source of the original information.

The attribute information is derived from data supplied by the Commonwealth department of Industry, Science and Resources (ISR) for permits beyond the 3nm (nautical mile) boundary of State/Territory coastal waters, and State/Territory mines departments for all permits within that limit, including onshore permits. This is collated and entered into a continually updated Petroleum Titles database maintained by Geoscience Australia.


Highly variable due to the varied source of the original information.

Logical Consistency:


The GIS package (Arcinfo) was used to detect errors in the spatial data structure and make sure topology is maintained. This check ensures that all titles polygons are closed and that each polygon is uniquely identified. A visual check of the titles attributes is done prior to release and attributes are also checked within the database they are derived from.


A geoscientist visually inspected the finished dataset to make sure the attributes were accurate and the data were consistent spatially with current scientific information. Tests are also carried out on these data for data completeness, correct spatial representation, attribute accuracy, logical consistency and correctness, and where appropriate for compliance with Geoscience Australia's GIS data dictionary.



The dataset coverage is complete for marine areas of the Australian Jurisdictional Area.


Data coverage is complete for Australia's jurisdictional area.

Contact information

Contact organisation: Commonwealth of Australia (Geoscience Australia) (GA)
Contact position: Manager Client Services
Mail address: Cnr Jerrabomberra Ave and Hindmarsh Dr
Mail address: GPO Box 378
Locality: Canberra
State: ACT
Country: Australia
Postcode: 2601
Telephone: 02 6249 9966
Facsimile: 02 6249 9960
Electronic mail address:

Metadata information

Metadata date: 2013-03-08

Additional metadata

Metadata reference XHTML:

Metadata reference XML:


Fields are compliant with Geoscience Australia's region items:

shape feature type

ufi unique number identifier

name title name


Fields are compliant with Geoscience Australia's line items (pipeline):

shape Feature type

ufi Unique number identifier

type Resource transported by the pipeline (OIL or GAS)

status Status in terms of provision of service (Operational, Construction, Planned, Abandoned)

Authors:Kilgour, B. Blevin, J.E. Trigg, K. Mitchell, C. Quinn, C.