Montara Operations

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Activity name
Montara Operations
Activity types
Operation of a facility
Submitted by
PTTEP Australasia (Ashmore Cartier) Pty Ltd
Submission date
Submission type
Revision (5 Year)
Titleholder to provide more information
Decision date
Related documents

Location map (click to enlarge)
Progress bar
Assessment with titleholder
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 22/11/2018 NOPSEMA decision 24/12/2018 Not applicable
Unable to make a decision within 30 days – request for further information 11/12/2018 Titleholder action 31/12/2018 Not applicable
Submission of further information 13/12/2018 NOPSEMA decision 30/01/2019 Not applicable
Not reasonably satisfied – opportunity to modify EP 29/01/2019 Titleholder action 28/02/2019 Decision notification (pdf 176 KB)
Resubmission of EP 28/02/2019 NOPSEMA decision 01/04/2019 Not applicable
Request for further information 01/04/2019 Titleholder action 22/04/2019 Not applicable
Submission of further information 05/04/2019 NOPSEMA decision 26/04/2019 Not applicable
Unable to make a decision within 30 days – request for further information 18/04/2019 Titleholder action 18/05/2019 Not applicable
Unable to make a decision within 30 days – request for further information 17/05/2019 Titleholder action 16/06/2019 Not applicable
Unable to make a decision within 30 days – request for further information 13/06/2019 Titleholder action 15/07/2019 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

Jadestone Energy Inc. and Jadestone Energy Eagle entered into an agreement with PTTEP Australasia (Ashmore Cartier) Pty Ltd (PTTEP AA), under which Jadestone Energy Eagle acquired the Montara Operations from PTTEP AA. Completion of the acquisition will be achieved with the acceptance of this EP by the National Offshore Petroleum Safety and Environment Authority (NOPSEMA).  At the time of the submission of this EP, PTTEP AA is the sole titleholder and have operational control of the Montara Operations. As per NOPSEMA’s Guidance Note for Change to the Titleholder with operational control of activities (GN1746; Rev 1 October 2017), this EP was prepared by Jadestone Energy Eagle and submitted by PTTEP AA on behalf of Jadestone Energy Eagle. Coinciding with the acceptance of this Environment Plan, Jadestone Energy Eagle will become the sole Titleholder, having operational control of the Montara Operations.

The Montara Venture Floating Production Storage Offtake (FPSO), unmanned wellhead platform and subsea infrastructure, are located in the Timor Sea, in the Ashmore Cartier territory within Commonwealth waters, approximately 690 km north-west of Darwin within 34 km of Vulcan Shoal. The facilities lie in water depths of approximately 80 m.

The Montara operations currently produce crude oil from the Montara, Skua, Swift and Swallow fields which is transported via flowline for processing at the well head platform and FPSO. The well head platform currently has five production wells, and there are five subsea production wells located approximately 17 to 18 km from the FPSO.

The Montara infrastructure is marked on nautical maps surrounded by a 500 m petroleum safety exclusion zone within which vessels are prohibited from entering.

The revised EP provides for operation of the FPSO and well head platform, and associated subsea infrastructure, situated in licenses AC/L7 and AC/L8. In addition, the revised EP provides for inspection, maintenance and repair of infrastructure, support services, and unplanned activities including oil spill response.

Ashmore Cartier
Commonwealth waters adjacent to
Ashmore Cartier Islands
Titles (or other instruments)
AC/L7 Opens in new window , AC/L8 Opens in new window

Mr Paul McCormick

Level 1

162 Colin Street


Telephone: +61 8 9320 9564



*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.