Ann: Quarterly Activities/Appendix 5B Cash Flow Report, page-19

The Company is pleased to announce that Western Gas and Valaris have formally
executed the drilling contract for the MS-1 semi-submersible rig to drill the multi TCF
Sasanof-1 exploration well.
The Sasanof-1 exploration well is in permit WA-519-P in Commonwealth waters about
207 km northwest of Onslow, Western Australia. Drilling is scheduled to commence in
March/April 2022 following the rig relocating from nearby activities on the North West
Shelf.
The contract marks another milestone towards the drilling of the Sasanof Prospect.
Securing the MS-1 rig following its current regional program provides significant
benefits for the delivery of a safe and efficient drilling campaign.
The Sasanof Prospect is on trend and updip of the liquids rich, low CO2 Mentorc G