• Orbost Gas Processing Plant currently at 60 TJ/d
• Orbost Gas Processing Plant Phase 2B works completed and since averaged 41 TJ/d for April
• Athena Gas Plant averaged 21.8 TJ/day for April impacted by a compressor trip
• Cooper Basin exploration oil discovery with Bangalee-1 in PEL92
Cooper Energy is pleased to provide the following operations update.
Orbost Gas Processing Plant and Sole gas field
At the Orbost Gas Processing Plant (OGPP) (owned and operated by APA Group (ASX: APA)), operations are returning to steady state following the shutdown which commenced on 26 March. The average processing rate for April (from the recommencement of processing) was 41 TJ/d. There was a dual sulphur absorber clean from 28 April to 2 May. The peak processing rate was 36.6 TJ/day during this clean. On 4 May, the OGPP processing rate was increased to 60 TJ/d.
The Phase 2B shutdown works experienced delays due to heavy rainfall leading to a flood event restricting access to the gas plant. Mitigation actions were taken to ensure the delay was minimised, with the OGPP returning to production on 9 April. The implementation of the sulphur removal package is ongoing and will be tied-in at a future time. The H2S polishing unit is online and performing to expectations.
In April, Cooper Energy was granted 100% equity in a new exploration permit VIC/P801. VIC/P80 is located in the Gippsland Basin, adjacent to several gas and oil fields, including Sole to the east, Manta to the south, and Kipper to the west.
Wobbegong is the key prospect in VIC/P80. Cooper Energy's estimate of its unrisked Prospective Resource potential is 79 Bcf (P90), 192 Bcf (P50), 236 Bcf (Mean) and 264 Bcf (P10). In combination with the Manta and Chimaera Deep prospects, the combined mean unrisked Prospective Resource potential is approximately 1 Tcf. In the remainder of CY2022 geologic and geophysical studies in this permit will concentrate on remapping the Manta Hub area with new 3D seismic data.
Athena Gas Plant and Casino Henry Netherby (CHN) gas fields
The average processing rate at the Athena Gas Plant was 21.8 TJ/d in April, 19% lower than the March rate of 26.8 TJ/d. The rate was impacted by a two-day plant shutdown on 20 April due to a mechanical failure on one sales gas compressor dry gas seal. The seals were replaced, and the equipment returned to service. The Athena Gas Plant was processing at lower rates until the repair was completed. Work to optimise combined plant and field performance is ongoing.
Ownership interests of the Athena Gas Plant and CHN fields are Cooper Energy (50% and Operator), Mitsui E&P Australia Pty Ltd (25%) and Peedamullah Petroleum Pty Ltd (25%).
Gas sales volumes
In April, the average gas price in the Victoria and Sydney spot markets was $14.53/GJ and $15.99/GJ respectively. Cooper Energy sold 90 TJ of production that was surplus to Gas Sales Agreement nominations into the spot market during this period, at prices aligned with these averages (less transport costs). All daily nominations for Sole customers continue to be met, averaging 47.3 TJ/d since completion of the OGPP April shutdown. During that shutdown, permitted interruption relief under the Gas Sales Agreements applied, and Cooper Energy supplied volumes to customers for approximately half of the outage period.
In ex-PEL-92 (PRLs 85-104), onshore South Australia, Cooper Energy is participating in drilling two oil exploration wells (Cooper Energy 25%, Beach Energy 75% and Operator).
Bangalee-1 spudded on 16 April 2022 and is located approximately 2km east of the Windmill oil field. It intersected approximately four metres of net oil pay in the target Namur reservoir, with minor pay in the Birkhead reservoir. The well will be cased and suspended as a future oil producer. It is expected to be brought online in FY23.
Hummocky-1 spudded on 2 May 2022 and is located approximately 2km southwest of the Christies oil field. It is an oil exploration well targeting the Namur Sandstone, with Mid-Namur and Birkhead/Hutton Formations as secondary targets.