v3.25.2
Property, Plant and Equipment & Natural Gas Properties
12 Months Ended
Jun. 30, 2025
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment & Natural Gas Properties
Note 4 – Property, Plant and Equipment & Natural Gas Properties
Natural Gas Properties
The Group held the following unproved natural gas properties as of June 30, 2025 and 2024 amounting to $342,313,782 and $230,119,448, respectively. These amounts reflect the Group’s exploration and evaluation projects, which are pending the determination of proven and probable reserves and were not being depleted for the years ended June 30, 2025 and 2024, respectively. These assets will be reclassified to proven gas properties upon commencement of production and then subsequently depleted.
In October 2024, the Group lodged an amended income tax return for the year ended June 30, 2024 claiming eligible Research and Development expenditure for EP 136, which resulted in a cash refund of $6,168,698 in December 2024.
During the years ended June 30, 2025 and 2024, the Group recognized no impairment related to unproved natural gas properties.
Natural gas properties
EP 161EP 136EP 76, 98 & 117Total
Balance as of July 1, 2023$23,718,277 $50,799,090 $88,868,604 $163,385,971 
Reclassification of environment security bond to other assets— (563,112)— (563,112)
Capital expenditure
— 616,440 51,303,075 51,919,515 
Restoration assets— — 72,433 72,433 
Interest on finance lease liability and related depreciation of ROU assets capitalized— — 14,539,059 14,539,059 
Effect of changes in foreign exchange rates
25,944 182,908 556,730 765,582 
Balance as of June 30, 202423,744,221 51,035,326 155,339,901 230,119,448 
Capital expenditure
1,180,592 314,586 101,440,779 102,935,957 
Restoration assets— — 523,732 523,732 
Interest on finance lease liability and related depreciation of ROU assets capitalized
— — 12,633,143 12,633,143 
Research and development tax credit— (6,168,698)— (6,168,698)
Effect of changes in foreign exchange rates
166,402 301,637 1,802,161 2,270,200 
Balance as of June 30, 2025$25,091,215 $45,482,851 $271,739,716 $342,313,782 

Assets Under Construction

In April 2024, the Group executed agreements for long lead items required for the Sturt Plateau Compression Facility SPCF in the Beetaloo Basin. These items included essential plant components comprising of two compressors and dehydration unit that would convert future raw gas to meet sales gas quality, subject to the terms of definitive development agreements. During the year ended June 30, 2025, the Group completed detailed design of the SPCF and received approval of the Environmental Management Plan (EMP”), and the essential plant components were completed and are in process of being mobilized to site. The Group held total assets under construction related to the SPCF as of June 30, 2025 and 2024 of $24,441,262 and $7,542,064, respectively.

The 40 TJ/d (39 MMcf/d) SPCF is expected to be connected to the Amadeus Gas Pipeline (“AGP”) via the construction of the 35-kilometer Sturt Plateau Pipeline (“SPP”) subject to achieving project milestones.
Property, Plant and Equipment

The following table summarizes the carrying amounts of held property, plant and equipment, including leasehold improvements, as of June 30, 2025 and 2024:
June 30,
20252024
Leasehold improvements - at cost
$535,276 $567,296 
Sand Mining Permits292,918 — 
Total property, plant and equipment828,194 567,296 
Less: Accumulated depreciation
(520,455)(465,052)
Total plant and equipment - net
$307,739 $102,244 
Depreciation expense for property plant and equipment for the years ended June 30, 2025, and 2024 was $85,947 and $120,444, respectively.
Assets classified as held for sale
In October, 2024, the Group completed the disposal of rig 403 at a price of $8,500,000, on which the Group paid a sales commission of 6%. During the year ended June 30, 2025, the Group recognized a loss on assets held for sale of $376,000 to reduce the asset to the lower of its carrying amount and the fair value less costs to sell (determined based on the sales price above).
No other assets remain held for sale as of June 30, 2025.