Leveraging proven reserves within the Amadeus Basin, NT
| Central – producing fields | Units | Reserves | Contingent Resources | |
| Proved | Proved & Probable | Best estimate | ||
| 1P | 2P | 2C | ||
| Mereenie oil | mmbbl | 0.30 | 0.36 | 0.05 |
| Mereenie gas | PJ | 28.1 | 36.6 | 45.6 |
| Palm Valley | PJ | 10.9 | 11.7 | 6.5 |
| Dingo | PJ | 18.7 | 22.8 | — |
| Total Amadeus producing fields (oil converted at 5.816 PJ/mmbbl) | PJe | 59.4 | 73.3 | 52.4 |
The reserves and contingent resources for the Mereenie, Palm Valley and Dingo fields (where applicable) above are as at 30 June 2024 and were first reported to ASX on 18 September 2024.
The Mereenie contingent gas resources include 27 PJ attributable to the Mereenie Stairway formation.
The total aggregated reported 1P reserves may be a very conservative estimate and the aggregate 3P may be a very optimistic estimate due to the portfolio effects of arithmetic summation.
Central Petroleum Limited is not aware of any new information or data that materially affects this information and confirms all the material assumptions and technical parameters underpinning the estimates in the relevant market announcement continue to apply and have not materially change
Exploration & Appraisal
Prospective Resources
Lead / Prospect | Permit | Permit Interest | Resource | Units | Low Estimate | Best Estimate | High Estimate | Mean |
Dukas | EP112 | 45% | Helium | Bcf | 7.7 | 51.3 | 212.4 | 89.6 |
Hydrogen | Bcf | 9.5 | 65.3 | 271.8 | 113.9 | |||
Natural Gas | Bcf | 58.1 | 333.9 | 1,268.6 | 551.3 | |||
Mahler | EP82 | 60% | Helium | Bcf | 0.2 | 1.3 | 6.6 | 2.7 |
Hydrogen | Bcf | 0.1 | 1.1 | 6.6 | 2.7 | |||
Natural Gas | Bcf | 0.7 | 6.0 | 32.4 | 13.2 | |||
Mamlambo | L6 | 100% | Oil | mmbbls | 3.0 | 13.0 | 39.0 | 18.0 |
Dingo Deep | L7 | 50% | Natural Gas | PJ | 7.5 | 24.5 | 71.5 | 34.5 |
Orange-3 | EP82DSA | 100% | Natural Gas | PJ | 78.0 | 284 | 837.0 | 401.0 |
Palm Valley Deep | OL3 | 50% | Natural Gas | PJ | 13.0 | 37.5 | 140.0 | 61.5 |
The volumes of Prospective Resources represent the unrisked recoverable volumes derived from Monte Carlo probabilistic volumetric analysis.
The Prospective Resources for the Dukas and Mahler prospects are as at 17 April 2023, as first reported to ASX on 18 April 2023 and adjusted for Central’s increased beneficial interests (Dukas was 35%, now 45%) (Mahler was 29%, now 60%). The helium and hydrogen estimates are volumes which are estimated to be recoverable and are not a prospective resource as defined in the SPE PRMS.
The Mamlambo Prospective Resources are as at 9 February 2022, as first reported to ASX on 10 February 2022.
The Prospective Resources for Dingo Deep, Orange-3 and Palm Valley Deep are as first reported to ASX on 7 August 2020, adjusted for Central’s reduced interests as a result of the asset sale, which completed 1 October 2021.
Inputs required for these analyses have been derived from offset wells and fields relevant to each play and field. Recovery factors used have been derived from analogous field production data.
Cautionary statement: the estimated quantities of petroleum that may potentially be recovered by the application of a future development project(s) relate to undiscovered accumulations. These estimates have both a risk of discovery and a risk of development. Further exploration appraisal and evaluation is required to determine the existence of a significant quantity of potentially recoverable hydrocarbons.
Contingent Resources
Lead / Prospect | Permit | Permit Interest | Resource | Units | 1C | 2C | 3C |
Jacko Bore | EP125 | 30% | Helium | Bcf | 1.2 | 5.4 | 20.7 |
Hydrogen | Bcf | 1.5 | 6.6 | 25.8 | |||
Natural Gas | Bcf | 2.8 | 11.7 | 43.8 |
The volumes of Contingent Resources of Jacko Bore were first reported to ASX on 18 April 2023, and adjusted for Central’s increased beneficial interest (from 24% to 30%).
Cautionary statement: Central confirms that it is not aware of new information or data that materially affects the information, and all material assumption and technical parameters underpinning the estimate continue to apply and have not materially changed.
