Otway Basin Exploration Drilling

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Activity name
Otway Basin Exploration Drilling
Activity types
Submitted by
Cooper Energy (CH) Pty. Ltd.
Submission date
Submission type
Decision date
Related documents
EP Summary (pdf 2.3 MB)

Location map (click to enlarge)
Progress bar
Final decision
EP summary published
Activity started
Activity stopped
End of operation of EP
Activity events
Event Event date Next event* Next event due* Related documents
Submission of new EP 10/12/2018 NOPSEMA decision 09/01/2019 Not applicable
Not reasonably satisfied – opportunity to modify EP 09/01/2019 Titleholder action 08/02/2019 Decision notification (pdf 177 KB)
Resubmission of EP 04/02/2019 NOPSEMA decision 06/03/2019 Not applicable
Acceptance of EP 26/02/2019 Titleholder action 08/03/2019 Decision Notification (pdf 9.5 MB)
Submission of EP summary 08/03/2019 NOPSEMA decision 18/03/2019 Not applicable
Publication of EP summary 20/03/2019 Not applicable
Activity started 15/04/2019 Not applicable Not applicable
Activity stopped 24/04/2019 Not applicable Not applicable

* The next event is based on NOPSEMA’s understanding and expectation of what may occur next in the assessment process. There are a number of other events that may occur, and events may happen sooner or later than expected. All events will be published in this table as and when they take place.

Activity description

Cooper Energy propose to undertake exploration drilling activities in two separate titles located within Australian Commonwealth waters. The Cooper Energy: Otway Basin Exploration Drilling EP (this EP) provides for drilling activities for up to two (2) exploration wells (Annie-1 and Elanora-1) in the Otway Basin off Victoria’s south-west coast, in an area where hydrocarbon exploration and production is well established. The proposed well sites are located within waters ranging in depth from approximately 62m to 75m.

The proposed drilling activities are to be completed by a semi-submersible mobile offshore drilling unit (MODU). The MODU will be anchored to the seabed and will be supported by two (2) to three (3) offshore vessels for the duration of the activities. The operational area covered by this EP is defined as a 2km radius from each well inclusive of MODU moorings and the MODU 500 m exclusion zone. 

Drilling activities are planned to commence in Q2 or Q3 of 2019, although depending on MODU availability, may commence later in the year.  Preparations for the MODU arrival to the first well location may include drill site survey activities undertaken from a vessel 8 -12 weeks prior to drilling. Drilling activities are expected to take approximately 30-50 days at each well location. Drilling and support activities will typically be conducted on a 24-hour basis.

Commonwealth waters adjacent to
Titles (or other instruments)
VIC/L24 Opens in new window , VIC/P44 Opens in new window

Mr Duncan Clegg

General Manager Developments

Cooper Energy (CH) Pty. Ltd.

Level 8/70 Franklin Street


Telephone: +61 8 8100 4900

Email: stakeholder@cooperenergy.com.au


*Where an environment plan was submitted or accepted prior to 28 February 2014 certain information is not published, in accordance with the Environment Regulations in place at that time. For accepted EPs, refer to the attached EP Summary for additional information.