Cooper Energy Limited (Cooper Energy) holds a 100% interest and is the operator of the Gippsland Offshore Operations assets off Victoria’s south-west coast within the following Licence areas:
• Patricia Baleen gas field and associated infrastructure in VIC/L21, 25 km south of Marlo, and associated pipeline and umbilical (VIC/PL31 and VIC/PL31(V)) to the Orbost Gas Plant; and
• Sole gas field and associated infrastructure in VIC/L32, 40 km south of Bemm River, and associated pipeline and umbilical (VIC/PL43 and VIC/PL006401(V) to the Orbost Gas Plant.

The Gippsland Offshore Operations fields and associated infrastructure are in Commonwealth waters and the Patricia Baleen and Sole pipeline and umbilicals are within Commonwealth and State waters. Water depths across the Gippsland Offshore Operations assets range from 9 m to 125 m.

This Environment Plan (EP) is submitted as a 5-year revision of the Gippsland Offshore Operations EP.
The scope of the activities related to the Gippsland Offshore Operations and covered by this EP are:

Operation of the Sole gas field consisting of the following infrastructure (24/7, 365-days a year):
- The Sole-3 and Sole-4 production wells;
- A 65 km subsea pipeline and umbilical connecting the Sole-3 and Sole-4 wells to the Orbost Gas Plant; and
- Sole-2 wellhead
Non-productive phase of the Patricia Baleen fields and associated shut-in infrastructure consisting of:
- The Patricia-2 and Baleen-4 wells;
- A 24 km subsea pipeline and umbilical cable connecting the Patricia-2 and Baleen-4 wells to the Patricia Baleen Gas Plant; and
- Patricia-1 suspended well.

Inspection, maintenance and repair activities on the Patricia Baleen and Sole infrastructure from Dive support or Construction support vessels with ROV. Indicatively, vessel-based IMR activities are expected to occur every 1-2 years, and may have a duration of between 2-4 weeks, up to ~8 weeks in the unlikely case that a major repair is required.