Emperor Energy has secured NOPSEMA approval for the Judith-2 appraisal well, removing a major regulatory barrier ahead of targeted drilling in April 2027. The well will test a 166 Bcf contingent gas resource and investigate deeper prospective sands, although commercial conversion remains unproven.
- NOPSEMA approves Judith-2 drilling Environment Plan
- April 2027 drilling target aligned with VALARIS 107 availability
- Well to appraise 166 Bcf 2C contingent gas resource
- Deeper Longtom sands carry 142 Bcf P50 prospective resource
- Resources remain subject to appraisal and development risk
NOPSEMA approval removes Judith-2 drilling barrier
Emperor Energy Limited (ASX:EMP) has cleared the key regulatory hurdle for its Judith-2 appraisal well, with NOPSEMA approving the Environment Plan for drilling offshore in Victoria’s Gippsland Basin. The approval advances a project that has been working towards an April 2027 drilling campaign.
Emperor said the timing aligns with its recent term sheet agreement covering the VALARIS 107 jack-up rig. The rig is currently operating in the offshore Gippsland Basin and is expected to become available after completing its existing commitments in March 2027. The April target therefore depends on that availability and the subsequent drilling schedule.
Judith-2 will test known and deeper gas targets
The well is designed to appraise a 166 billion cubic feet 2C contingent recoverable gas resource in the Judith Structure. That resource was discovered by Shell in 1989 and sits within the Judith East Fault Block, where the Judith-1 well is located.
Judith-2 will also explore deeper Longtom gas sands that have not yet been penetrated in the Judith structure. Emperor cites a 142 Bcf P50 prospective recoverable resource for those sands, within a broader Judith structure estimate of 1.859 trillion cubic feet of P50 prospective recoverable gas resources independently assessed by GaffneyCline.
Resource scale does not yet establish commercial reserves
The numbers are substantial, but they sit at different stages of certainty. The 166 Bcf figure is a contingent resource, meaning it is potentially recoverable from a known accumulation but is not yet mature enough to be classified as a commercial development. The deeper 142 Bcf estimate is prospective, relating to an accumulation that remains to be discovered and carries both discovery and development risks.
That distinction leaves the drilling results as the next decisive test. Judith-2 will need to provide further geological and flow information before the company can assess whether the identified gas volumes can support a commercially viable project. The announcement contains no drilling cost, funding update or production timetable.
April 2027 campaign now faces execution tests
NOPSEMA’s approval is a meaningful step, but it is not the same as a successful well or a final development decision. The remaining practical questions include whether the VALARIS 107 arrangement progresses beyond its term sheet, whether the rig is released on schedule, and what Judith-2 ultimately encounters beneath the seabed.
Bottom Line?
The regulatory gate is open, but the investment case still turns on rig execution, funding and whether Judith-2 converts resource estimates into commercial evidence.
Questions in the middle?
- Will the VALARIS 107 term sheet become a binding drilling contract on the targeted timetable?
- How will Emperor fund the full Judith-2 campaign and associated appraisal work?
- Will Judith-2 confirm the existing contingent resource and discover the deeper Longtom gas sands?