Cobia Pipeline Repair Project

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Activity name
Cobia Pipeline Repair Project
Activity types
Significant modification of a petroleum pipeline
Submitted by
Esso Australia Resources Pty Ltd
Submission date
Submission type
Decision date
Related documents
EP Summary (pdf 7.2 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 17/07/2018 NOPSEMA decision 16/08/2018 Not applicable
Not reasonably satisfied – opportunity to modify EP 16/08/2018 Titleholder action 17/09/2018 Decision notification (pdf 9.5 MB)
Extension of timeframe 14/09/2018 Titleholder action 21/09/2018 Not applicable
Resubmission of EP 17/09/2018 NOPSEMA decision 17/10/2018 Not applicable
Unable to make a decision within 30 days – complex assessment 17/10/2018 NOPSEMA decision 24/10/2018 Not applicable
Request for further information 24/10/2018 Titleholder action 14/11/2018 Not applicable
Submission of further information 09/11/2018 NOPSEMA decision 09/12/2018 Not applicable
Acceptance of EP 29/11/2018 Titleholder action 09/12/2018 Decision notification (pdf 712 KB)
Submission of EP summary 10/12/2018 NOPSEMA decision 20/12/2018 Not applicable
Publication of EP summary 18/12/2018 Not applicable Not applicable
Activity started 10/12/2018 Not applicable Not applicable
Activity stopped 07/01/2019 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

The Cobia Pipeline Repair Project Environment Plan covers the repair of the existing 300mm pipeline between the Halibut and Cobia Platforms located in Production Area VIC/L05 in Bass Strait. The repair involves the Seven Eagle dive support vessel laying a 150mm flexible pipeline between the Halibut and Cobia risers and making the associated tie-ins. The campaign is expected to take place in December 2018 and last approximately 10 days and will involve divers and ROV activities. 

The Environment Plan also covers leaving the redundant CBA300 pipeline in-situ until future decommissioning plans are developed or the pipeline is incorporated into a new or revised operations Environment Plan. Until decommissioning is completed, maintenance activities on the pipeline will continue be undertaken. The Cobia Pipeline Repair Project Environment Plan will cease when the new or revised operations Environment Plan is accepted by NOPSEMA.

Commonwealth waters adjacent to
Titles (or other instruments)
VIC/PL15 Opens in new window

Carolyn Thomas

Risk, Environment and Regulatory Supervisor

Esso Australia Resources Pty Ltd

Level 9, 664 Collins Street


Telephone: +61 3 9261 0260



*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.