The well will appraise the mammoth discovery at Lockyer Deep-1 made in September 2021.
The Ensign 970 rig will take around a month to reach total depth of 4451 metres.
MINERAL Resources and joint venture partner Norwest Energy have begun drilling the Lockyer Deep-2 appraisal well in the onshore Perth Basin.
The well will appraise the mammoth discovery at Lockyer Deep-1 made in September 2021.
The Ensign 970 rig will take around a month to reach total depth of 4451 metres.