v3.26.3
Variable Interest Entities - Balance sheet (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Current assets      
Cash and cash equivalents $ 219,135 $ 39,439  
Restricted cash 11,960 5,722  
Trade and other receivables:      
Joint interest billings 1,472 8,191  
ATO receivable 3,735 1,219  
Other receivables 430 222  
Prepaid expenses and other current assets 6,461 1,903  
Total current assets 243,193 56,696  
Operating lease right-of-use assets 2,705 1,549  
Finance lease right-of-use asset 14,345 16,544  
Prepaid expenses and other non-current assets 13,672 4,610  
Total non-current assets 910,789 389,766  
TOTAL ASSETS 1,153,982 446,462  
Current liabilities      
Accounts payable and accrued expenses 73,742 20,457  
Current portion of operating lease obligations 1,897 391  
Current portion of finance lease obligation 14,410 15,307  
Advance against joint interest billings 0 450  
Total current liabilities 93,057 36,605  
Finance lease obligation 8,354 9,523  
Asset retirement obligations 22,138 9,649  
Long-term debt, net 59,043 0  
Other non-current liabilities 811 57  
Total non-current liabilities 91,364 20,404  
Total liabilities 184,421 57,009  
Unproved properties      
Trade and other receivables:      
Natural gas properties, successful efforts method: 807,036 342,314 $ 230,119
Assets under construction - natural gas equipment      
Trade and other receivables:      
Natural gas properties, successful efforts method: 72,287 24,441  
Variable interest entity, primary beneficiary | Tamboran (B1) Pty Ltd ("TB1")      
Current assets      
Cash and cash equivalents 10,885 3,729  
Trade and other receivables:      
Joint interest billings 890 8,191  
Intercompany receivable 0 1,934  
ATO receivable 2,956 722  
Other receivables 38 113  
Prepaid expenses and other current assets 5,056 0  
Total current assets 19,825 14,690  
Operating lease right-of-use assets 1,283 0  
Finance lease right-of-use asset 14,345 16,544  
Prepaid expenses and other non-current assets 4,604 2,026  
Total non-current assets 484,292 304,201  
TOTAL ASSETS 504,117 318,891  
Current liabilities      
Accounts payable and accrued expenses 44,788 12,507  
Current portion of operating lease obligations 1,451 0  
Current portion of finance lease obligation 14,410 15,307  
Total current liabilities 60,649 27,814  
Finance lease obligation 8,354 9,523  
Asset retirement obligations 6,181 5,127  
Loan from Group 247,762 163,016  
Total non-current liabilities 262,297 177,666  
Total liabilities 322,946 205,480  
Variable interest entity, primary beneficiary | Tamboran SPCF Pty Ltd (“TR SPCF")      
Current assets      
Cash and cash equivalents 3,872 1,935  
Restricted cash 11,960 0  
Trade and other receivables:      
ATO receivable 396 123  
Other receivables 45 0  
Loan to Group 0 1,124  
Total current assets 16,273 3,182  
Prepaid expenses and other non-current assets 2,608 0  
Total non-current assets 74,895 24,441  
TOTAL ASSETS 91,168 27,623  
Current liabilities      
Accounts payable and accrued expenses 7,380 4,364  
Advance against joint interest billings 0 450  
Intercompany payable 3,102 1,338  
Total current liabilities 10,482 6,152  
Asset retirement obligations 204 95  
Long-term debt, net 59,043 0  
Other non-current liabilities 746 0  
Total non-current liabilities 59,993 95  
Total liabilities 70,475 6,247  
Variable interest entity, primary beneficiary | Unproved properties | Tamboran (B1) Pty Ltd ("TB1")      
Trade and other receivables:      
Natural gas properties, successful efforts method: 464,060 285,631  
Variable interest entity, primary beneficiary | Assets under construction - natural gas equipment | Tamboran (B1) Pty Ltd ("TB1")      
Trade and other receivables:      
Natural gas properties, successful efforts method: 0  
Variable interest entity, primary beneficiary | Assets under construction - natural gas equipment | Tamboran SPCF Pty Ltd (“TR SPCF")      
Trade and other receivables:      
Natural gas properties, successful efforts method: $ 72,287 $ 24,441