Strike Energy

West Erregulla Gas

:  Level 1, 40 Kings Park Road, West Perth WA 6005

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West Erregulla was discovered by Strike in 2019 with the West Erregulla-2 exploration well, targeting the previously untested Kingia and High Cliff Sandstones, analogous to the nearby Waitsia field. The well intersected ~78m of Net Pay across the Permian aged Wagina, Kingia and High Cliff sandstones, with the Kingia Sandstone flowing up to 69 MMscf/d on production test. West Erregulla-3, 4 and 5 were drilled between 2020 and 2022. West Erregulla 3 encountered over pressure in the Carynginia and was suspended before being successfully re-entered in mid-2022 and intersecting 38m of Net Pay and producing one of the best flow rates in the basin at a peak of 90 MMscf/d.

The EP469 joint venture has drilled the successful Erregulla Deep-1 exploration well within EP469. Strike has estimated a Prospective Resource (2U) of gross 278 PJ for Erregulla Deep (139 PJ net to Strike) with updated resource estimates expected upon the completion of new 3D seismic acquisition over the area.

The success at Erregulla Deep demonstrates the prospectivity of the Greater Erregulla region and the broader prospectivity resultant from the drilling within the West and South Erregulla gas fields.

Strike has begun preparation and procurement for the workover of West Erregulla-4 and 5, with the primary objective of deepening the gas-water contact used by NSAI to determine 2P Reserves and preparing the wells as future producers. 

As announced on the 28th of October 2024, the L25/EP469 Joint Venture has been advised that the federal Department of Climate Change, Energy, the Environment and Water (DCCEEW) has determined to approve the development of the upstream infrastructure for the West Erregulla gas field under the Commonwealth’s Environment Protection and Biodiversity Act 1999 (Cth) (EPBC). Strike is engaged with its JV partner, Warrego Energy (under new Hancock Prospecting management), on the best field development plan.

In May 2019 Strike announced that it has executed a Gas Sales Option Agreement with CSBP Limited, a significant Western Australian industrial gas user and leading fertiliser manufacturer. Under the agreement Strike has granted CSBP the option to take up to 100 PJ of gas (Strike share) produced from West Erregulla. The key terms of the Gas Sales Option Agreement are:

CSBP granted an option for the supply of 80 to 100PJ of gas (Strike share), to be delivered at a maximum of 25 TJ/d from commencement of production from West Erregulla.

For more information about this agreement, please 

, the firm gas supply agreement has reverted to the original option for gas supply under the Gas Sales Option Agreement announced on 29 May 2019. As a result, the fixed gas price that had been agreed under the firm gas supply agreement will revert to the option price as calculated under the Gas Sales Option Agreement, and on that calculation, will increase to a price that on Strike’s assessment is more closely aligned to current WA market prices for long term gas supply. As disclosed on 29 May 2019, the key terms of the Gas Sales Option Agreement with CSBP are:

1. CSBP granted an option for the supply of 100PJ of gas (Strike share), to be delivered at a maximum of 25 TJ/d from commencement of production from West Erregulla.

2. The option is conditional on Strike taking FID on a commercial project.

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