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Petroleum Acreage Release


To support the 2018 Victorian Offshore Petroleum Acreage Release in the Otway Basin, the Geological Survey of Victoria has created key datasets from its existing project information.

In addition, the Otway Basin airborne gravity survey is now processing the data acquired over the onshore and offshore basin components, with field images of Fourier Derived Vertical Gravity, Fourier Derived Vertical Gravity Gradient and Total Magnetic Intensity available. 

Seismic data with consistent header information suitable for bulk loading into interpretation packages is available in SEGY format or in Kingdom (2017) project format.

Well header information, including location, deviation, formation tops, and where available, time to depth relationships from checkshots, are included in the Kingdom project or a format suitable for bulk loading into an interpretation package.

This information can be requested from

Open file wireline log data, petroleum well reports and other published petroleum data packages are available from the earth resources online store.

2018 Victorian Offshore Petroleum Acreage Release Otway Basin

The Victorian Government is inviting applications for five petroleum acreage release areas 18-1(v), 18-2(v), 18-3(v), 18-4(v) and 18-5(v), within State Coastal Waters in the Otway Basin (Figure 1). These five offshore acreage release areas cover 1318 km2 and are located between Port Campbell and the South Australian border.

Location of the 2018 offshore petroleum acreage release Otway Basin

Map of Victoria showing the location of the 2018 offshore petroleum acreage release

The five petroleum release areas are all underexplored with limited seismic acquisition and no previous exploration drilling. 18-4(v) and 18-5(v) are adjacent to existing producing gas fields in the Shipwreck Trough. This acreage is within the proven Austral 2 petroleum system and could provide exploration opportunities similar to the Halladale and Speculant gas fields, brought into production in 2016.

Applications for the five blocks are via work program bidding.

Applications close 6pm 15 February 2019 AEST.

Airborne Gravity Survey

The Geological Survey of Victoria commenced an airborne gravity survey of approximately 16,000 square kilometres of the Otway Basin in August 2018. The survey includes both offshore and onshore components. The data will be available in the first half of 2019.

Learn more about the airborne gravity survey.

Tender details – Invitation to Tender


Potential tenderers should register on Tenders Vic

Answers to any tender questions will be published on Tenders Vic.

Application must be lodged electronically through Tenders Vic.


For further information, contact the Victorian Gas Program.

Past Acreage Releases

View information on past petroleum acreage releases.