Maps and geospatial information

The State of Western Australia, together with State waters and the Western Australian Offshore Area (Commonwealth waters), are divided into graticular sections. Each section is five minutes of latitude by five minutes of longitude. These graticules constitute the building blocks for all exploration and production titles.

Graticular sections

The entire State of Western Australia, together with adjacent areas, is divided up into a series of 1:1 000 000 map sheets. Each of these map sheets is four degrees of latitude by six degrees of longitude. Each map sheet has a common name such as Hamersley Range and also an index name SF 50 this is the horizontal code: SF and the zone in which the sheet is in: 50.

These Map Sheets are comprised of 3456 graticular sections which, as mentioned before are five minutes of latitude by five minutes of longitude. The sections are defined on the Australian Geodetic Datum 1966, (AGD66).

Each section has an average area of about 78 square kilometres. Sections to the north of Western Australia have an area of about 84 square kilometres, while sections to the south have an area of about 70 square kilometres. The difference is brought about by the convergence of meridians of longitude between the Equator and the South Pole.                                                                                                                                                           

Within a map sheet, each section is individually numbered starting at the top left and working across and down (just as you would read a book).

The million series map sheets are split into three separate series:

1. Offshore series

To depict Petroleum Titles within the jurisdiction of the Commonwealth Offshore Petroleum and Greenhouse Gas Storage Act 2006. The section numbers for this series are numbered from 1 to 3456.

2. State onshore series

To depict Petroleum Titles within the jurisdiction of the Petroleum Geothermal and Energy Resources Act 1967. The section numbers for this series are numbered from 5001 to 8456.

3. State territorial sea series

To depict Petroleum Titles within the jurisdiction of the Petroleum (Submerged Lands) Act 1982. The section numbers for this series are also numbered from 5001 to 8456. To denote the difference between this series and the State Onshore series these sections are suffixed with a ‘t’.

Please note: The Department of Mines and Petroleum ceased to be a Designated Authority under the Offshore Petroleum and Greenhouse Gas Storage Act 2006 on 1 January 2012. For all queries regarding administration of Commonwealth Titles refer to the National Offshore Petroleum Titles Administrator website.

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Maps and downloads

Perth Basin Proposed Acreage Release 5 Year Schedule - 712 Kb

Map showing the proposed 5 year schedule for acreage releases in the Perth Basin

Canning Basin Proposed Acreage Release 5 Year Schedule - 967 Kb

Map showing the proposed 5 year schedule for acreage releases in the Canning Basin

Significant Hydrocarbon Discoveries in Western Australia - August 2012 - 2061 Kb

Map showing significant Hydrocarbon Discoveries

Petroleum Exploration Titles by Expiry Year – August 2017 - 1454 Kb

Petroleum Exploration Titles by Expiry Year

Petroleum Titles by Nominees and Applicants – August 2017 - 1910 Kb

A map of Petroleum Titles by operators and applicants

Petroleum Map Grids PSLA67 for WA - Offshore - 898 Kb

Petroleum Map Grids- Offshore

Timor Sea Oil and Gas - August 2015 - 1081 Kb

A map showing Timor Sea Oil and Gas

Petroleum Titles Map – September 2017 - 3190 Kb

Petroleum Titles Map

Geothermal Tenure - August 2015 - 850 Kb

A map showing Geothermal Historical Tenure in Western Australia

Petroleum Graticular Maps Index PGERA67 / PSLA82 / OPGGSA06 - 3528 Kb

Petroleum Graticular Maps Index

Petroleum Map Grids GDA for WA - ARCVIEW Format - 11015 Kb

Petroleum Map Grids

Onshore Basins - August 2015 - 2190 Kb

A map of Onshore Basins in Western Australia

Example Area of Where Commonwealth and State Petroleum Acts Apply - 117 Kb

Example Area of Where Acts Apply

North West Shelf Oil and Gas - August 2015 - 1398 Kb

A map showing North West Shelf Oil and Gas

Areas of Graticular Blocks by Latitude - 70 Kb

Graticular Blocks by Latitude

Tenure Labels Utilised Within PGR, EPR, GIS & Mapping Databases - 160 Kb

A list of Tenure Labels Utilised Within PGR, EPR, GIS and Mapping Databases

Petroleum Pipeline Licences In Western Australia – April 2017 - 3131 Kb

Map showing Petroleum Pipeline Licences in WA

Petroleum Graticular Section Index Map - 2376 Kb

Graticular Section Index Map

Petroleum Map Grids PGERA67 and PSLA82 for WA - 867 Kb

Map Grids for WA

Petroleum Map Grids GDA for WA - Microstation format - 1626 Kb

Map Grids for WA

Petroleum Map Grids - Mapinfo - 9461 Kb

Petroleum Map Grids

Graticular Sections (for Petroleum Titles) Explained - 32 Kb

Graticular Sections Explained