Debt instrument, prepayment premium, stated percentage Debt Instrument, Prepayment Premium, Stated Percentage Debt Instrument, Prepayment Premium, Stated Percentage Effect of changes in foreign exchange rates Asset Retirement Obligation, Foreign Currency Translation Gain (Loss) Statistical Measurement [Domain] Statistical Measurement [Domain] Schedule of Carrying Amounts of Assets and Liabilities Condensed Balance Sheet [Table Text Block] Schedule of Assets and Liabilities Assets And Liabilities, Lessee [Table Text Block] Assets And Liabilities, Lessee Proceeds from sale of assets held for sale Proceeds from Sale, Property, Held-for-Sale Less: Forfeitures Restricted Stock Award, Forfeitures Award Timing Predetermined Award Timing Predetermined [Flag] Related Party Transaction [Axis] Related Party Transaction [Axis] Fiscal year ending June 30, 2026 (excluding nine months period from July 1, 2025 to March 31, 2026) Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Tranche 4 Four tranche Four Tranche [Member] Four Tranche Tranche 1B Tranche 1B [Member] Tranche 1B Entity File Number Entity File Number Additional paid-in capital Additional Paid-in Capital [Member] Tamboran Resources Corporation Tamboran Resources Corporation [Member] Tamboran Resources Corporation Capitalized borrowing costs Payments of Financing Costs Proceeds from issue of common stock, awaiting issuance Proceeds from Issuance of Common Stock, Awaiting Issuance Proceeds from Issuance of Common Stock, Awaiting Issuance Tabular List, Table Tabular List [Table Text Block] Leases [Abstract] Number of shares transferred (in shares) Business Combination, Consideration Transferred, Equity Interest, Share Issued, Number of Shares Recently Issued Accounting Standards New Accounting Pronouncements, Policy [Policy Text Block] Interest income (expense), net Interest Income (Expense), Nonoperating Share-based payment arrangement Share-Based Payment Arrangement [Member] Schedule of Capital Commitments Unrecorded Unconditional Purchase Obligations Disclosure [Table Text Block] Number of wells Oil and Gas, Gross Productive Well, Multiple Completions, Number Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Net loss per common stock, basic (in USD per share) Net loss per share, basic (in USD per share) Earnings Per Share, Basic Adjustment to Compensation: Adjustment to Compensation [Axis] Related Party Transactions Related Party Transactions Disclosure [Text Block] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Accrued stamp duty Accrued Stamp Duty, Current Accrued Stamp Duty, Current Accounts payable and accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities Payment of interest on borrowings Interest Payment On Borrowings, Investing Activities Interest Payment On Borrowings, Investing Activities Adjustment to Compensation, Amount Adjustment to Compensation Amount Less: Unamortized debt issuance costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Stock-based compensation Share-Based Payment Arrangement, Noncash Expense Employee stock option Share-Based Payment Arrangement, Option [Member] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Grantee Status [Domain] Grantee Status [Domain] Variable interest entity, primary beneficiary Variable Interest Entity, Primary Beneficiary [Member] Retention Awards - Granted FY26 2026 Plan, Retention Awards [Member] 2026 Plan, Retention Awards Total Tamboran Resources Corporation stockholders’ equity Equity, Attributable to Parent Insider Trading Policies and Procedures [Line Items] Share-based payment expense Total Stock Compensation Costs Expensed Share-Based Payment Arrangement, Expense Exercise price (in USD per share) Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Issued In Connection With Acquisitions, Exercise Price Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Issued In Connection With Acquisitions, Exercise Price Common stock, shares authorized (in shares) Common Stock, Shares Authorized Issuance of common stock as termination payment (in shares) Capital raise (in shares) Stock Issued During Period, Shares, New Issues Current assets Assets, Current [Abstract] Options, forfeitures in period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities and Equity Modular Buildings and Related Equipment (“Stage 1 and 2 Hire Goods”) Modular Buildings And Related Equipment (“Stage 1 And 2 Hire Goods”) [Member] Modular Buildings And Related Equipment (“Stage 1 And 2 Hire Goods”) Foreign Currency Translation and Transactions Foreign Currency Transactions and Translations Policy [Policy Text Block] LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities and Equity [Abstract] Cover [Abstract] Finance lease, discount rate Lessee, Finance Lease, Discount Rate Maximum Maximum [Member] Less: Net loss attributable to noncontrolling interest Net Income (Loss) Attributable to Noncontrolling Interest Schedule of Assumptions of Grant Date Fair Value Schedule Of Share-Based Payment Award, Equity Instruments Other than Options, Valuation Assumptions [Table Text Block] Schedule Of Share-Based Payment Award, Equity Instruments Other than Options, Valuation Assumptions Schedule of Operating Lease Liabilities Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] IPO Awards 2024 Plan, IPO Awards [Member] 2024 Plan, IPO Awards Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Debt Instrument [Line Items] Debt Instrument [Line Items] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Line of credit, drawdown fee percentage Line Of Credit Facility, Drawdown Fee Percentage Line Of Credit, Drawdown Fee Per Annum, Percentage Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Pay vs Performance Disclosure [Line Items] Present value of operating lease liabilities Operating Lease, Liability Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Line of Credit Facility, Lender [Domain] Line of Credit Facility, Lender [Domain] LIABILITIES Lease liabilities: Liabilities [Abstract] Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Depreciation on right-of-use assets Finance Lease, Right-of-Use Asset, Amortization Entity Shell Company Entity Shell Company Accounts payable and other accrued liabilities Accounts Payable and Other Accrued Liabilities Other non-current liabilities Other Liabilities, Noncurrent Schedule of Long-Term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Statement of Stockholders' Equity [Abstract] Total Stock Compensation Costs Capitalized Share-Based Payment Arrangement, Amount Capitalized Variable Interest Entity [Table] Variable Interest Entity [Table] 2024 Director RSUs 2024 Director RSUs [Member] 2024 Director RSUs Statement of Cash Flows [Abstract] Company Selected Measure Amount Company Selected Measure Amount Less: Total comprehensive income (loss) attributable to noncontrolling interest Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Other non-current liabilities Increase (Decrease) in Other Noncurrent Liabilities Interest expense Interest Expense, Operating Debt issuance costs, gross Debt Issuance Costs, Gross Total comprehensive income (loss) attributable to Tamboran Resources Corporation stockholders Comprehensive Income (Loss), Net of Tax, Attributable to Parent Australia Retention awards 2024 Plan, Australia Retention Awards [Member] 2024 Plan, Australia Retention Awards Name Measure Name Letter of credit Letter of Credit [Member] EP 136 EP 136 [Member] EP 136 Current portion of operating lease obligations Operating Lease, Liability, Current Macquarie Bank Limited (“Macquarie”) Macquarie Bank Limited (“Macquarie”) [Member] Macquarie Bank Limited (“Macquarie”) Accrued interest income Accrued Interest Income Accrued Interest Income Issuance of common stock as prepayment of facility fee (in shares) Stock Issued During Period, Facility Fee, Shares, New Issues Stock Issued During Period, Facility Fee, Shares, New Issues Interest on lease liabilities Finance Lease, Interest Expense EP 98 EP 98 [Member] EP 98 Document Fiscal Period Focus Document Fiscal Period Focus Phase 2 Development Area (P2DA) Phase 2 Development Area ("P2DA"), Previously "Dev A++" [Member] Phase 2 Development Area ("P2DA"), Previously "Dev A++" Award Timing Method Award Timing Method [Text Block] Number of CDI exchanged for one common stock (in shares) Number of Chess Depository Interest ("CDI") Exchanged for One Common Stock Number of Chess Depository Interest ("CDI") Exchanged for One Common Stock Award Type Award Type [Axis] Long-term debt, net Long-term debt, net Long-Term Debt Legal Entity [Axis] Legal Entity [Axis] TOTAL ASSETS Assets Trading Symbol Trading Symbol Vested (in USD per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Lease, gap period Finance Lease, Gap Period Finance Lease, Gap Period Cash and Cash Equivalents and Restricted Cash Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Within eighteen to twenty four months Within Eighteen To Twenty Four Months [Member] Within Eighteen To Twenty Four Months Geographical [Domain] Geographical [Domain] Issuance of common stock as prepayment of Facility Fee (in USD per share) Issuance of common stock as prepayment of facility fee (in USD per share) Sale Of Stock, Facility Fee, Price Per Share Sale Of Stock, Facility Fee, Price Per Share Right-of-use assets Operating And Finance Lease, Right-Of-Use Asset Operating And Finance Lease, Right-Of-Use Asset Accelerated Non-renounceable Institutional Entitlement Offer Accelerated Non-renounceable Institutional Entitlement Offer [Member] Accelerated Non-renounceable Institutional Entitlement Offer Interest expense Interest Expense, Long-Term Debt Accrued debt issuance costs Debt Issuance Costs Incurred During Noncash or Partial Noncash Transaction Term of contract, rig Lessee, Finance Lease, Term of Contract Entity Address, City or Town Entity Address, City or Town Cash flows from operating activities: Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Weighted-average incremental borrowing rate Finance Lease, Weighted Average Discount Rate, Percent Line of credit facility, establishment fee Line Of Credit Facility, Establishment Fee Line Of Credit Facility, Establishment Fee Effects of exchange rate changes on cash and cash equivalents Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Asset Retirement Obligation, Roll Forward Analysis [Roll Forward] Asset Retirement Obligation, Roll Forward Analysis [Roll Forward] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Restricted Stock Units (RSUs) Restricted Stock Units (RSUs) [Member] Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Variable Interest Entity [Line Items] Variable Interest Entity [Line Items] Entity Emerging Growth Company Entity Emerging Growth Company Fiscal year ending June 30, 2027 Finance Lease, Liability, to be Paid, Year One Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Weighted-average remaining lease term Finance Lease, Weighted Average Remaining Lease Term Advance against joint interest billings Oil And Gas, Joint Interest Billing, Payable, Current Oil And Gas, Joint Interest Billing, Payable, Current Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Restricted cash Restricted Cash and Cash Equivalent Finance lease cost charged to profit and loss Finance Lease, Cost Finance Lease, Cost Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Business Combination [Domain] Business Combination [Domain] Operating leases Lessee, Operating Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] Line of credit facility, conditions to issue stock, value, new issues Line Of Credit Facility, Conditions To Issue Stock, Value, New Issues Line Of Credit Facility, Conditions To Issue Stock, Value, New Issues Related Party Related Party [Member] Less: Imputed interest Finance Lease, Liability, Undiscounted Excess Amount Common stock, shares, outstanding (in shares) Common Stock, Shares, Outstanding Chief Executive Officer Chief Executive Officer [Member] Plan Name [Axis] Plan Name [Axis] PEO PEO [Member] Compensated absences Accrued Vacation, Current Schedule of Movement in Common Stock Schedule of Common Stock Outstanding Roll Forward [Table Text Block] Unpaid cash calls receivable Joint Venture, Unpaid Cash Calls Receivable Joint Venture, Unpaid Cash Calls Receivable Deferred Debt Issuance Costs Deferred Debt Issuance Cost [Policy Text Block] Deferred Debt Issuance Cost Operating lease, increase in annual expense, percentage Operating Lease, Increase In Annual Expense After Year One, Percentage Operating Lease, Increase In Annual Expense After Year One, Percentage Shares issued (in shares) Issuance of common stock under share purchase plan/against vested equity awards (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period Changes in operating assets and liabilities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Guarantor obligations, current carrying value Guarantor Obligations, Current Carrying Value Nature of Operation, Product Information, Concentration of Risk [Table] Nature of Operation, Product Information, Concentration of Risk [Table] Contribution receivable from noncontrolling interest holders Contribution Receivable From Non-Controlling Interest Contribution Receivable From Non-Controlling Interest Expected volatility Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate Accumulated deficit Retained Earnings [Member] Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Income Tax Jurisdiction [Axis] Income Tax Jurisdiction [Axis] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Restatement Determination Date Restatement Determination Date Share-Based Payment Arrangement [Abstract] Cash and cash equivalents and restricted cash at the beginning of period Cash and cash equivalents and restricted cash at the end of period Total cash, cash equivalents and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Income Statement [Abstract] Debt instrument, basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Sale of Stock [Domain] Sale of Stock [Domain] Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Maturity [Domain] Maturity [Domain] Maturity [Domain] Asset Retirement Obligation Disclosure [Abstract] Original lenders Original Lenders [Member] Original Lenders Total Tamboran Resources stockholders’ equity Parent [Member] Net loss Net loss Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Natural gas properties, successful efforts method: Natural gas properties, successful efforts method: Balance at July 1, 2025 Balance at March 31, 2026 Oil and Gas, Successful Efforts Method, Property and Equipment, after Accumulated Depreciation, Depletion, Amortization, and Impairment Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Liabilities incurred Asset Retirement Obligation, Liabilities Incurred Organization, Consolidation and Presentation of Financial Statements [Abstract] Maturity [Axis] Maturity [Axis] Maturity Interest and fee payable Interest And Fee Payable Interest And Fee Payable Tranche [Domain] Tranche [Domain] Tranche [Domain] Operating lease ROU reduction Operating Lease, Right-of-Use Asset, Periodic Reduction Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Retention Awards - Granted FY25 2025 Plan, Retention Awards [Member] 2025 Plan, Retention Awards City Area Code City Area Code Government grants Oil And Gas, Successful Efforts Method, Property And Equipment, Increase (Decrease) Through Government Grants Oil And Gas, Successful Efforts Method, Property And Equipment, Increase (Decrease) Through Government Grants Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Reduction in lease term Lessee, Operating Lease, Reduction In Lease Term Lessee, Operating Lease, Reduction In Lease Term All Trading Arrangements All Trading Arrangements [Member] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Expenditures for which contributions are due Joint Venture, Expenditures For Which Contributions Are Due Joint Venture, Expenditures For Which Contributions Are Due 2024 Plan 2024 Plan [Member] 2024 Plan Previously recorded expense Share-Based Payment Arrangement, Expense Reversal Share-Based Payment Arrangement, Expense Reversal Beginning Balance (in shares) Ending Balance (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Commitments and Contingencies Disclosure [Abstract] Legal Entity of Counterparty, Type [Axis] Legal Entity of Counterparty, Type [Axis] Cash flows from investing activities: Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] General and administrative General and Administrative Expense Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Thereafter Finance Lease, Liability, To Be Paid, After Year Two Finance Lease, Liability, To Be Paid, After Year Two Net cash used in operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Unrecorded Unconditional Purchase Obligation by Category of Item Purchased [Axis] Unrecorded Unconditional Purchase Obligation by Category of Item Purchased [Axis] Debt instrument, term Debt Instrument, Term Disposal Oil And Gas, Successful Efforts Method, Property And Equipment, Decrease Through Disposals Oil And Gas, Successful Efforts Method, Property And Equipment, Decrease Through Disposals Related Party Transactions [Abstract] Effective Income Tax Rate Reconciliation [Table] Effective Income Tax Rate Reconciliation [Table] Interest and commitment fee payable on Syndicated Facility Interest And Commitment Fee Payable Interest And Commitment Fee Payable Subsequent event Subsequent Event [Member] Effective Income Tax Rate Reconciliation [Line Items] Effective Income Tax Rate Reconciliation [Line Items] Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Schedule of Lease Costs Lease, Cost [Table Text Block] PEO Total Compensation Amount PEO Total Compensation Amount Common stock, value, net proceeds at beginning of period Common stock, value, net proceeds at end of period Common Stock, Value, Net Proceeds Accumulated Common Stock, Value, Net Proceeds Accumulated Long-Term Debt, Type [Axis] Long-Term Debt, Type [Axis] Australia IPO awards 2024 Plan, Australia IPO Awards [Member] 2024 Plan, Australia IPO Awards Equity Components [Axis] Equity Components [Axis] Entity Ex Transition Period Entity Ex Transition Period Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Sturt plateau pipeline (SPP), distance Sturt Plateau Pipeline (SPP), Distance Sturt Plateau Pipeline (SPP), Distance Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Equipment Equipment [Member] Cash paid for amounts included in the measurement of lease liabilities: Leases, Payments Leases, Payments Midstream Midstream [Member] Midstream Business and Basis of Preparation Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] Supplemental cash flow information: Supplemental Cash Flow Information [Abstract] Variable Interest Entities Variable Interest Entity Disclosure [Text Block] Non-cash finance lease costs capitalized to unproved properties Non-Cash Finance Lease Costs Capitalized To Unproved Properties Non-Cash Finance Lease Costs Capitalized To Unproved Properties Entity Address, Country Entity Address, Country Other Performance Measure, Amount Other Performance Measure, Amount Schedule of Restrictions on Cash and Cash Equivalents Restrictions on Cash and Cash Equivalents [Table Text Block] Payment of debt issuance costs Payments of Debt Issuance Costs Interest accrued on finance lease liabilities Finance Lease Interest Obligation Incurred Finance Lease Interest Obligation Incurred Repayment of lease liabilities Financing cash flows for finance leases Finance Lease, Principal Payments Related and Nonrelated Parties [Domain] Related and Nonrelated Parties [Domain] Total current liabilities Liabilities, Current Net (decrease) increase in cash and cash equivalents and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Excluding Exchange Rate Effect, Including Discontinued Operation Loan to Tamboran Loans Receivable, Current Loans Receivable, Current Individual: Individual [Axis] Vesting [Axis] Vesting [Axis] Income Tax Jurisdiction [Domain] Income Tax Jurisdiction [Domain] Leases Lessee, Finance Leases [Text Block] Finance lease right-of-use assets and lease liabilities Right-of-Use Asset Obtained in Exchange for Finance Lease Liability Entity [Domain] Entity [Domain] Net cash used in investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Construction facility, percentage complete Oil And Gas, Successful Efforts Method, Property And Equipment, After Accumulated Depreciation, Depletion, Amortization, And Impairment, Construction Completion, Threshold Percentage Oil And Gas, Successful Efforts Method, Property And Equipment, After Accumulated Depreciation, Depletion, Amortization, And Impairment, Construction Completion, Threshold Percentage Asset retirement obligations Settlement of Asset Retirement Obligations Through Noncash Payments, Amount Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Contributions received from noncontrolling interest holders Proceeds from Noncontrolling Interests Document Fiscal Year Focus Document Fiscal Year Focus Basis of Presentation of Condensed Consolidated Financial Statements Basis of Accounting, Policy [Policy Text Block] Lender Name [Axis] Lender Name [Axis] Project [Domain] Project [Domain] Operating lease right-of-use assets Operating Lease, Right-of-Use Asset Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Effective tax rate reconciliation, percent Effective Income Tax Rate Reconciliation, Percent Entity Interactive Data Current Entity Interactive Data Current Extension of permit period Extension Of Permit Period Extension Of Permit Period Operating lease cost charged to profit and loss Operating Lease, Cost Within twelve to eighteen months Within Twelve To Eighteen Months [Member] Within Twelve To Eighteen Months Majority shareholder Majority Shareholder [Member] Tranche 4 Share-Based Payment Arrangement, Tranche Four [Member] Share-Based Payment Arrangement, Tranche Four Plan Name [Domain] Plan Name [Domain] Guarantor obligation, construction costs covered by bank guarantees, percentage Guarantor Obligation, Construction Costs Covered By Bank Guarantees, Percentage Guarantor Obligation, Construction Costs Covered By Bank Guarantees, Percentage 2025 Director RSUs 2025 Director RSUs [Member] 2025 Director RSUs Weighted average remaining contractual term (in years) Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Equity [Abstract] Public stock offering Public Stock Offering [Member] Public Stock Offering Building Building [Member] Daly Waters Infrastructure, LP (“DWI”) Daly Waters Infrastructure, LP (“DWI”) [Member] Daly Waters Infrastructure, LP (“DWI”) Schedule of Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award [Table Text Block] Area of Land Area of Land Long-Lived Tangible Asset [Axis] Long-Lived Tangible Asset [Axis] Other Commitments [Line Items] Other Commitments [Line Items] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Underwritten Offering And Institutional Entitlement Offering Underwritten Offering And Institutional Entitlement Offering [Member] Underwritten Offering And Institutional Entitlement Offering Ownership [Domain] Ownership [Domain] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Defined contribution superannuation payable Liability, Pension and Other Postretirement and Postemployment Benefits, Current Fiscal year ending June 30, 2028 Finance Lease, Liability, to be Paid, Year Two Leases as a Lessee Lessee, Leases [Policy Text Block] Joint interest billings Oil and Gas, Joint Interest Billing, Receivable, Current Depreciation and amortization Depreciation and amortization Depreciation, Depletion and Amortization SPCF Sub Trust SPCF Sub Trust [Member] SPCF Sub Trust CIK Entity Central Index Key PEO Name PEO Name 2026 Director RSUs 2026 Director RSUs [Member] 2026 Director RSUs Beginning balance Ending balance Asset Retirement Obligation Revenue and other operating income Revenues Total gross proceeds from issuance Less: Transaction costs Sale of Stock, Consideration Received on Transaction Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Camp (expense) recoveries, net Camp (Expense) Recoveries, Net Camp (Expense) Recoveries, Net Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Present value of finance lease liabilities Finance Lease, Liability Arrangement Duration Trading Arrangement Duration IPO Awards (Tranche 1) Share-Based Payment Arrangement, Tranche One [Member] Prepaid expenses and other assets Increase (Decrease) in Prepaid Expense and Other Assets Exercise Price Award Exercise Price Entity Filer Category Entity Filer Category Local Phone Number Local Phone Number Share price of CDI issued (in USD per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Per Share Price of Chess Depository Interests (CDI) Issued Share-Based Compensation Arrangement by Share-Based Payment Award, Per Share Price of Chess Depository Interests (CDI) Issued Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Remaining costs to recognize, if all vesting conditions are met Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount Subsequent Event Type [Axis] Subsequent Event Type [Axis] Stock-Based Compensation Share-Based Payment Arrangement [Text Block] Payments for exploration and evaluation Payments to Explore and Develop Oil and Gas Properties Lease liabilities Operating And Finance Lease, Liability Operating And Finance Lease, Liability ASSETS Right-of-use assets: Assets [Abstract] Long-term debt, net Long-Term Debt, Excluding Current Maturities Credit Facility [Axis] Credit Facility [Axis] Nonrelated Party Nonrelated Party [Member] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Entity Address, Address Line Three Entity Address, Address Line Three Vesting [Domain] Vesting [Domain] Debt Instrument [Axis] Debt Instrument [Axis] Forfeitures (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Line of credit facility, covenants, minimum current ratio Line of Credit Facility, Covenants, Minimum Current Ratio Line of Credit Facility, Covenants, Minimum Current Ratio Credit Facility [Domain] Credit Facility [Domain] Weighted average number of common stock outstanding Weighted Average Number of Shares Outstanding, Basic and Diluted [Abstract] Weighted Average Number of Shares Outstanding, Basic and Diluted Stockholders’ equity Equity, Attributable to Parent [Abstract] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Legal Entity Type of Counterparty [Domain] Legal Entity Type of Counterparty [Domain] Details Detail [Abstract] Detail Entity Address, Address Line One Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Two LNG feasibility study expense Research and Development Expense Accumulated other comprehensive income (loss) AOCI Attributable to Parent [Member] Operating lease, increase in annual expense Operating Lease, Increase In Annual Expense Operating Lease, Increase In Annual Expense Interest rate, stated percentage Debt Instrument, Interest Rate, Stated Percentage Issuance of common stock pursuant to Subscription Agreement (in USD per share) Issuance of common stock pursuant to subscription agreement (in USD per share) Sale Of Stock, Subscription Agreement, Price Per Share Sale Of Stock, Subscription Agreement, Price Per Share Operating lease obligations Non-current portion of operating lease obligations Operating Lease, Liability, Noncurrent Institutional Entitlement Offer Institutional Entitlement Offer [Member] Institutional Entitlement Offer EP 161 EP 161 [Member] EP 161 Issuance of common stock under share purchase plan/against vested equity awards (in USD per share) Share-Based Compensation Arrangement By Share-Based Payment Award, Per Share Price Of Shares Issued Share-Based Compensation Arrangement By Share-Based Payment Award, Per Share Price Of Shares Issued Issuance of common stock Sale of Stock, Consideration Received Per Transaction Tranche 2 Second Tranche [Member] Second Tranche Ownership [Axis] Ownership [Axis] Unconditional Purchase Obligation, Category of Goods or Services Acquired [Domain] Unconditional Purchase Obligation, Category of Goods or Services Acquired [Domain] Performance bonds facility fee Performance Bonds, Facility Fee, Noncash Expense Performance Bonds, Facility Fee, Noncash Expense Name of Property [Domain] Name of Property [Domain] Fair Value as of Grant Date Award Grant Date Fair Value Property, Plant and Equipment [Abstract] Registrant Name Entity Registrant Name Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Operating loss carryforwards Operating Loss Carryforwards Agent and security trustee Agent And Security Trustee [Member] Agent And Security Trustee Schedule of Long-Term Debt Instruments Schedule of Long-Term Debt Instruments [Table Text Block] Compensation and benefits, including stock-based compensation Labor and Related Expense Line of credit facility, covenants, minimum liquidity Line Of Credit Facility, Covenants, Minimum Liquidity Line Of Credit Facility, Covenants, Minimum Liquidity Share-based compensation grants in period (in shares) Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Payments of third party costs for proposed Falcon Acquisition Payments to Acquire Investments Title and Position [Domain] Title and Position [Domain] Tranche [Axis] Tranche [Axis] Tranche Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Related Party Transaction [Line Items] Related Party Transaction [Line Items] Document Quarterly Report Document Quarterly Report Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Counterparty Name [Domain] Counterparty Name [Domain] Beetaloo Joint Venture Beetaloo Joint Venture [Member] Beetaloo Joint Venture Fiscal year ending June 30, 2028 Lessee, Operating Lease, Liability, to be Paid, Year Two Total finance lease cost Finance Lease, Cost Gross Finance Lease, Cost Gross Operating leases: Leases, Operating [Abstract] Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Term loan Term Loan [Member] Term Loan Schedule of Accounts Payable and Accrued Expenses Schedule of Accounts Payable and Accrued Liabilities [Table Text Block] EP 76 EP 76 [Member] EP 76 Fair value at grant date (in USD per share) Granted (in USD per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Related and Nonrelated Parties [Axis] Related and Nonrelated Parties [Axis] Title Trading Arrangement, Individual Title Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Effect of changes in foreign exchange rates Oil And Gas, Successful Efforts Method, Property And Equipment, Increase (Decrease) In Foreign Exchange Rates Oil And Gas, Successful Efforts Method, Property And Equipment, Increase (Decrease) In Foreign Exchange Rates Natural Gas Properties Oil and Gas Properties Policy [Policy Text Block] Restatement Determination Date: Restatement Determination Date [Axis] Total consideration transferred Payments to Acquire Businesses, Gross Loss on remeasurement of assets classified as held for sale Impairment of Long-Lived Assets to be Disposed of Non-PEO NEO Non-PEO NEO [Member] Letters of credit outstanding, amount Letters of Credit Outstanding, Amount Operating leases: Operating Lease, Assets And Liabilities, Lessee [Abstract] Operating Lease, Assets And Liabilities, Lessee Contributions from noncontrolling interest holders Noncontrolling Interest, Increase from Subsidiary Equity Issuance Number of potential additional performance bond facilities Number Of Potential Additional Performance Bond Facilities Number Of Potential Additional Performance Bond Facilities APA Group (APA) APA Group (APA) [Member] APA Group (APA) Sale of Stock [Axis] Sale of Stock [Axis] Issuance of common stock pursuant to Subscription Agreement Sale Of Stock, Subscription Agreement, Consideration Received Per Transaction Sale Of Stock, Subscription Agreement, Consideration Received Per Transaction Name Trading Arrangement, Individual Name Shenandoah south pilot project, vesting trigger conditions, volume Shenandoah South Pilot Project, Vesting Trigger Conditions, Volume Shenandoah South Pilot Project, Vesting Trigger Conditions, Volume All Award Types Award Type [Domain] Fiscal year ending June 30, 2027 Lessee, Operating Lease, Liability, to be Paid, Year One Noncontrolling interest Equity, Attributable to Noncontrolling Interest Equity Awards Adjustments Equity Awards Adjustments [Member] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Minimum liquidity threshold Line Of Credit Facility, Covenant, Minimum Liquidity Threshold Line Of Credit Facility, Covenant, Minimum Liquidity Threshold Trade and other receivables Increase (Decrease) in Accounts and Other Receivables Compensation Amount Outstanding Recovery Compensation Amount Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Exploration expense Exploration Expense (Credit), Net Exploration Expense (Credit), Net Letter of credit, facility B and C Letter Of Credit, Facility B and C [Member] Letter Of Credit, Facility B and C Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Cumulative net proceeds Proceeds [Abstract] Proceeds Beetaloo Basin Beetaloo Basin [Member] Beetaloo Basin MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Name Awards Close in Time to MNPI Disclosures, Individual Name Beginning balance (in USD per share) Ending balance (in USD per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Sturt plateau compression facility (“SPCF”), volume Sturt Plateau Compression Facility (“SPCF”), Volume Sturt Plateau Compression Facility (“SPCF”), Volume Denominator: Weighted Average Number of Shares Outstanding Reconciliation [Abstract] Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Employee Stock [Member] Employee Stock [Member] Fiscal year ending June 30, 2026 (excluding nine months period from July 1, 2025 to March 31, 2026) Finance Lease, Liability, to be Paid, Remainder of Fiscal Year Stock-based compensation APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Schedule of Finance Lease Liabilities Finance Lease, Liability, to be Paid, Maturity [Table Text Block] Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income (Loss), Net of Tax Thereafter Lessee, Operating Lease, Liability, To Be Paid, After Year Two Lessee, Operating Lease, Liability, To Be Paid, After Year Two Tamboran SPCF Pty Ltd (“TR SPCF") Tamboran SPCF Pty Ltd (“TR SPCF”) [Member] Tamboran SPCF Pty Ltd (“TR SPCF”) Foreign Tax Jurisdiction Foreign Tax Jurisdiction [Member] Proceeds from issue of shares under greenshoe option Proceeds From Issue Of Shares Under Greenshoe Option Proceeds From Issue Of Shares Under Greenshoe Option Total non-current assets Assets, Noncurrent Line of credit facility, remaining borrowing capacity Line of Credit Facility, Remaining Borrowing Capacity ATO receivable Value Added Tax Receivable, Current Lessee, extension term Lessee, Operating Lease, Extension Term Lessee, Operating Lease, Extension Term Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Minimum Minimum [Member] Payments for assets under construction Payments for Construction in Process Accretion of asset retirement obligations Accretion of asset retirement obligations Accretion expense Asset Retirement Obligation, Accretion Expense Company Selected Measure Name Company Selected Measure Name Bunkhouses And Accommodation Verandahs ("Stage 3 Hire of goods") Bunkhouses And Accommodation Verandahs ("Stage 3 Hire of Goods") [Member] Bunkhouses And Accommodation Verandahs ("Stage 3 Hire of Goods") Sweetpea Sweetpea Petroleum Pty Ltd [Member] Sweetpea Petroleum Pty Ltd Proceeds from government grants for exploration Proceeds From Government Grants For Exploration Proceeds From Government Grants For Exploration Letter of credit facility A, B and C Letter Of Credit, Facility A, B And C [Member] Letter Of Credit, Facility A, B And C Asset Retirement Obligations Asset Retirement Obligation Disclosure [Text Block] Tranche 1A Tranche 1A [Member] Tranche 1A Long-term debt Debt Disclosure [Text Block] Operating costs and expenses Operating Income (Loss) [Abstract] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Accounts payable Accounts Payable, Current Tranche 2 Tranche 2 [Member] Tranche 2 Operating cash flows for operating leases Operating Lease, Payments Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Falcon Acquisition Falcon Acquisition [Member] Falcon Acquisition U.S. Retention awards 2024 Plan, U.S. Retention Awards [Member] 2024 Plan, U.S. Retention Awards All Executive Categories All Executive Categories [Member] Total Cost Incurred Share-Based Payment Arrangement, Expensed and Capitalized, Amount Common stock, $0.001 par value, 10,000,000,000 authorized; 22,667,289 and 16,717,289 issued and outstanding at March 31, 2026 and June 30, 2025, respectively Common Stock, Value, Issued Finance lease right-of-use assets Finance Lease, Right-of-Use Asset, after Accumulated Amortization Share-Based Payment Arrangement, Employee Share-Based Payment Arrangement, Employee [Member] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Equity investment Equity Investment [Member] Equity Investment Development Agreement ("DA") Development Agreement ("DA") [Member] Development Agreement ("DA") IPO Awards (Tranche 2) Share-Based Payment Arrangement, Tranche Two [Member] Title and Position [Axis] Title and Position [Axis] Weighted average number of common stock outstanding, diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Commitments and contingencies (Note 12) Commitments and Contingencies Tranche 3 Third Tranche [Member] Third Tranche Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Business Combination [Axis] Business Combination [Axis] Total comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Entity Small Business Entity Small Business Percentage of ownership interest Business Combination, Voting Equity Interest Acquired, Percentage Common stock issue transaction costs Common stock issue transaction costs Payments of Stock Issuance Costs Income Tax Disclosure [Abstract] Noncancelable term of contract Lessee, Operating Lease, Term Of Contract, Noncancelable Lessee, Operating Lease, Term Of Contract, Noncancelable Noncontrolling interest Noncontrolling Interest [Member] Document Transition Report Document Transition Report Total lease payments Finance Lease, Liability, to be Paid Underlying Securities Award Underlying Securities Amount Equity Component [Domain] Equity Component [Domain] Document Period End Date Document Period End Date Project [Axis] Project [Axis] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Income Taxes Income Tax Disclosure [Text Block] Tranche 1 First Tranche [Member] First Tranche Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Checkerboard fee Checkerboard fee Checkerboard Fee Checkerboard Fee Syndicated Facility Agreement Syndicated Facility Agreement [Member] Syndicated Facility Agreement Schedule of Natural Gas Properties Oil and Gas, Capitalized Exploratory Well Cost, Roll Forward [Table Text Block] Increase (decrease) in operating lease liability Increase (Decrease) in Operating Lease Liability Total stockholders’ equity Beginning balance Ending balance Equity, Including Portion Attributable to Noncontrolling Interest Payment of interest on finance lease liabilities Finance Lease, Interest Payment On Liability, Investing Activities Finance Lease, Interest Payment On Liability, Investing Activities Document Type Document Type Loss Per Share Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Additional paid-in capital Additional Paid in Capital Intercompany receivable Accounts and Other Receivables, Net, Current Proceeds from issue of common stock Proceeds from Issuance of Common Stock Australia Sub Australia Sub [Member] Australia Sub All Individuals All Individuals [Member] Long-Term Debt, Type [Domain] Long-Term Debt, Type [Domain] Common stock, shares, issued (in shares) Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Grants In Period, Common Stock To Be Issued Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Number of Common Stock to be Issued Tranche 5 Fifth tranche Five Tranche [Member] Five Tranche Name Forgone Recovery, Individual Name Total current assets Assets, Current Statistical Measurement [Axis] Statistical Measurement [Axis] Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Payments for property, plant and equipment Payments to Acquire Other Property, Plant, and Equipment Other receivables Other receivable Other Receivables, Net, Current Prepaid expenses and other non-current assets Prepaid Expense and Other Assets, Noncurrent EP 143 EP 143 [Member] EP 143 Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Number of licenses Number Of Licenses Number Of Licenses Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Oil and Gas, Capitalized Exploratory Well Cost [Roll Forward] Oil and Gas, Capitalized Exploratory Well Cost [Roll Forward] Current liabilities Liabilities, Current [Abstract] Geographical [Axis] Geographical [Axis] Lessee, Lease, Description [Line Items] Lessee, Lease, Description [Line Items] Transaction Type [Axis] Transaction Type [Axis] Guarantor Obligations, Nature [Domain] Guarantor Obligations, Nature [Domain] Total operating costs and expenses Operating Expenses Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Number of gas wells Gas, Productive Well, Number of Wells, Net Foreign exchange gain (loss), net Foreign exchange (gain) loss, net Gain (Loss), Foreign Currency Transaction, before Tax Leases Lessor, Operating Leases [Text Block] Related Party Transaction [Table] Related Party Transaction [Table] Net loss per common stock, diluted (in USD per share) Net loss per share, diluted (in USD per share) Earnings Per Share, Diluted Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Less: Lease cost capitalized to unproved properties Lease Cost Capitalized To Unproved Properties Lease Cost Capitalized To Unproved Properties Accrued capital expenditure Accrued Capital Expenditure, Current Accrued Capital Expenditure, Current Title of 12(b) Security Title of 12(b) Security Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] Non-cash investing and financing activities: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Issuance of common stock under public offering (in shares) Sale of Stock, Number of Shares Issued in Transaction Debt instrument, interest selection period Debt Instrument, Interest Selection Period Debt Instrument, Interest Selection Period Net loss per common stock Earnings Per Share [Abstract] Earnings Per Share [Abstract] EP 76, 98 and
117 EP 76, 98 and
117 [Member] EP 76, 98 and
117 Total other income (expense) Nonoperating Income (Expense) Payment of performance bond facility establishment fee Payment Of Performance Bond Establishment Fee Payment Of Performance Bond Establishment Fee U.S. IPO awards 2024 Plan, U.S. IPO Awards [Member] 2024 Plan, U.S. IPO Awards Issuance of common stock as prepayment of Facility Fee Sale Of Stock, Facility Fee, Consideration Received Per Transaction Sale Of Stock, Facility Fee, Consideration Received Per Transaction Assets under construction - natural gas equipment Asset under Construction [Member] Accounts Payable and Accrued Expenses Accounts Payable and Accrued Liabilities Disclosure [Text Block] Intercompany payable Accounts Payable, Other, Current Less: Transaction costs Accrued transaction costs Accrued Transaction Costs Accrued Transaction Costs Less: Imputed interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Retail Entitlement Offer Retail Entitlement Offer [Member] Retail Entitlement Offer Award Timing Disclosures [Line Items] Schedule of Change in Asset Retirement Obligation Schedule of Change in Asset Retirement Obligation [Table Text Block] Total principal balance Long-Term Debt, Gross Accrued payroll Employee-related Liabilities, Current Property, Plant and Equipment & Natural Gas Properties Property, Plant and Equipment Disclosure [Text Block] Total lease payments Lessee, Operating Lease, Liability, to be Paid Stockholders’ Equity Equity [Text Block] Line of credit facility, current borrowing capacity Line of Credit Facility, Current Borrowing Capacity EP 117 EP 117 [Member] EP 117 Non-cash equity issuance transactions Non-Cash Equity Issuance Transactions Non-Cash Equity Issuance Transactions Net loss attributable to Tamboran Resources Corporation stockholders Net loss after income tax attributable to Tamboran Resources Corporation stockholders Net Income (Loss) Attributable to Parent Subsequent Event [Table] Subsequent Event [Table] Expiration Date Trading Arrangement Expiration Date Joint venture, ownership percentage Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage Accrued expenses Other Accrued Liabilities, Current Product Information [Line Items] Product Information [Line Items] Share-based payment award, award vesting period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Property, plant and equipment, net Property, Plant and Equipment, Net Numerator: Net Income (Loss) Attributable to Parent [Abstract] Asset sale agreement, consideration transferred per acre (in USD per acre) Asset Sale Agreement, Consideration Transferred Per Acre Asset Sale Agreement, Consideration Transferred Per Acre Adoption Date Trading Arrangement Adoption Date Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Entity Current Reporting Status Entity Current Reporting Status After twenty four months After Twenty Four Months [Member] After Twenty Four Months Term of contract, office building Lessee, Operating Lease, Term of Contract Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] TR West, Daly Waters Energy, LP (“DWE”), Elliot Energy I Pty Ltd Tamboran (West) Pty Ltd (“TR West”), Daly Waters Energy, LP (“DWE”), Elliot Energy I Pty Ltd [Member] Tamboran (West) Pty Ltd (“TR West”), Daly Waters Energy, LP (“DWE”), Elliot Energy I Pty Ltd Loss from operations Operating Income (Loss) Capital Unit [Line Items] Capital Unit [Line Items] Line of credit Line of Credit [Member] Consolidated Entities [Domain] Consolidated Entities [Domain] Co-venturer Co-venturer [Member] Accumulated deficit Accumulated deficit Retained Earnings (Accumulated Deficit) Name of Property [Axis] Name of Property [Axis] Schedule of Stock-Based Compensation Costs Recognized Share-Based Payment Arrangement, Cost by Plan [Table Text Block] Transaction [Domain] Transaction [Domain] Issuance of common stock pursuant to Subscription Agreement (in shares) Issuance of common stock pursuant to subscription agreement (in shares) Stock Issued During Period, Subscription Agreement, Shares, New Issues Stock Issued During Period, Subscription Agreement, Shares, New Issues Daly Waters Energy, LP (“DWE”) Daly Waters Energy, LP (“DWE”) [Member] Daly Waters Energy, LP (“DWE”) Statement of Financial Position [Abstract] Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Executive Category: Executive Category [Axis] Working capital surplus (deficit) Substantial Doubt About Going Concern, Working Capital Surplus (Deficit) Substantial Doubt About Going Concern, Working Capital Surplus (Deficit) Asset retirement obligations Asset Retirement Obligations, Noncurrent Current portion of finance lease obligations Finance Lease, Liability, Current Fair market value at time of issuance Fair Market Value [Abstract] Fair Market Value Stock-based compensation Non-Cash Transaction, Stock-Based Compensation Non-Cash Transaction, Stock-Based Compensation Proceeds from borrowings Proceeds from Issuance of Long-Term Debt Current Fiscal year end date Current Fiscal Year End Date Tamboran
common stock  Stock [Abstract] Stock Expected term for performance period (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term Subsequent Event Type [Domain] Subsequent Event Type [Domain] CDI issued in the period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Chess Depository Interest (CDI) Issued in Period Share-Based Compensation Arrangement by Share-Based Payment Award, Chess Depository Interest (CDI) Issued in Period Tamboran (B1) Pty Ltd ("TB1") Tamboran (B1) Pty Ltd ("TB1") [Member] Tamboran (B1) Pty Ltd ("TB1") Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Payables and Accruals [Abstract] Weighted average grant date fair value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Other income (expense), net Other Nonoperating Income (Expense) Consultancy, legal and professional fees Professional Fees Statement [Table] Statement [Table] Adjustments to reconcile net loss to net cash provided by operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Cash flows from financing activities: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Restoration assets Oil And Gas, Successful Efforts Method, Property And Equipment, Restoration Assets Oil And Gas, Successful Efforts Method, Property And Equipment, Restoration Assets Loan from Group Loans Payable, Noncurrent Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Leases as a Lessor Lessor, Leases [Policy Text Block] Finance lease obligations Non-current portion of finance lease obligations Finance Lease, Liability, Noncurrent Committed at the reporting date but not recognized as liabilities, payable: Unrecorded unconditional purchase obligation, including lease not yet commenced Unrecorded Unconditional Purchase Obligation All Adjustments to Compensation All Adjustments to Compensation [Member] Accounts payable and accrued expenses Total accounts payable and accrued expenses Accounts Payable and Accrued Liabilities, Current Amendment Flag Amendment Flag Issuance of common stock (in USD per share) Issue price (in USD per share) Sale of Stock, Price Per Share Number of shares authorized (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized Government guarantee amount Line Of Credit Facility, Maximum Government Guarantee Line Of Credit Facility, Maximum Government Guarantee Increase in maximum borrowing capacity Line Of Credit Facility, Increase (Decrease) In Maximum Borrowing Capacity Line Of Credit Facility, Increase (Decrease) In Maximum Borrowing Capacity Financial Guarantee Financial Guarantee [Member] Other Commitments [Table] Other Commitments [Table] Leases Lessee, Operating Leases [Text Block] Termination Date Trading Arrangement Termination Date Net cash from financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Letter of credit, facility C Letter Of Credit, Facility C [Member] Letter Of Credit, Facility C Tamboran (Beetaloo) Pty Tamboran (Beetaloo) Pty [Member] Tamboran (Beetaloo) Pty Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Measure: Measure [Axis] Brisbane, Australia Brisbane, Australia [Member] Brisbane, Australia Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] IPO Awards (Tranche 3) Share-Based Payment Arrangement, Tranche Three [Member] Guarantee fee percentage Line Of Credit Facility, Government Guarantee Fee, Stated Percentage Line Of Credit Facility, Government Guarantee Fee, Stated Percentage Weighted-average incremental borrowing rate Operating Lease, Weighted Average Discount Rate, Percent Number of CDIs issued in transaction (in shares) Sale of Stock, Number Of CDIs Issued In Transaction Sale of Stock, Number Of CDIs Issued In Transaction Weighted average number of common stock outstanding, basic (in shares) Weighted Average Number of Shares Outstanding, Basic Long-Lived Tangible Asset [Domain] Long-Lived Tangible Asset [Domain] Proceeds from issuance of long-term debt and finance costs Proceeds From Issuance Of Long-Term Debt Including Associated Finance Costs Proceeds From Issuance Of Long-Term Debt Including Associated Finance Costs Schedule of Computations of Basic and Diluted Loss Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Related Party Transaction [Domain] Related Party Transaction [Domain] Subsequent Events [Abstract] Within twelve months Within Twelve Months [Member] Within Twelve Months Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Falcon Oil & Gas (Australia) Limited ("Falcon Australia") Falcon Oil & Gas (Australia) Limited ("Falcon Australia") [Member] Falcon Oil & Gas (Australia) Limited ("Falcon Australia") Debt Disclosure [Abstract] Loss on remeasurement of assets classified as held for sale Impairment, Oil and Gas, Property with Unproved Reserve Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Amortization of debt issuance costs Amortization of Debt Issuance Costs Risk-free interest rate Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Other income (expense) Nonoperating Income (Expense) [Abstract] Entity Tax Identification Number Entity Tax Identification Number Share-Based Payment Arrangement, Nonemployee Share-Based Payment Arrangement, Nonemployee [Member] Grantee Status [Axis] Grantee Status [Axis] Interest on finance lease liability and related depreciation of ROU assets capitalized Oil And Gas, Successful Efforts Method, Property And Equipment, Interest On Finance Lease Liability And Related Depreciation Of ROU Assets Capitalized Oil And Gas, Successful Efforts Method, Property And Equipment, Interest On Finance Lease Liability And Related Depreciation Of ROU Assets Capitalized Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Consolidated Entities [Axis] Consolidated Entities [Axis] Common stock, par value per share (in USD per share) Common Stock, Par or Stated Value Per Share Common stock, shares, issued (in shares) Common stock, at the beginning of the period (in shares) Common stock, at the end of the period (in shares) Common Stock, Shares, Issued Weighted-average remaining lease term Operating Lease, Weighted Average Remaining Lease Term Options, grant in period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross Finance leases: Leases, Finance [Abstract] Leases, Finance Significant Judgments and Accounting Estimates Use of Estimates, Policy [Policy Text Block] Guarantor Obligations, Nature [Axis] Guarantor Obligations, Nature [Axis] Letter of credit, facility A Letter Of Credit, Facility A [Member] Letter Of Credit, Facility A Trading Arrangement: Trading Arrangement [Axis] Total Shareholder Return Amount Total Shareholder Return Amount Retention Awards Retention Awards [Member] Retention Awards Asset sale agreement, consideration transferred Asset Sale Agreement, Consideration Transferred Asset Sale Agreement, Consideration Transferred Subsequent Events Subsequent Events [Text Block] Foreign exchange translation Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Insider Trading Arrangements [Line Items] Operating lease right-of-use assets and lease liabilities Right-Of-Use Asset Obtained (Removed) In Exchange For Operating Lease Liability Right-Of-Use Asset Obtained (Removed) In Exchange For Operating Lease Liability Security Exchange Name Security Exchange Name Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] Total non-current liabilities Liabilities, Noncurrent Total liabilities Liabilities Line of credit facility, commitment fee percentage Line of Credit Facility, Commitment Fee Percentage Finance leases: Finance Lease, Assets And Liabilities, Lessee [Abstract] Finance Lease, Assets And Liabilities, Lessee Accrued capital expenditure Capital Expenditures Incurred but Not yet Paid Line of credit facility, maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Trade and other receivables: Other Receivables, Net, Current [Abstract] Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Capital expenditure Oil and Gas, Capitalized Exploratory Well Cost, Charged to Expense Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Issuance of common stock, net of issuance cost Stock Issued During Period, Value, New Issues Issuance of common stock under share purchase plan/against vested equity awards Share-Based Compensation Arrangement By Share-Based Payment Award, Consideration Received Per Transaction Share-Based Compensation Arrangement By Share-Based Payment Award, Consideration Received Per Transaction Statement [Line Items] Statement [Line Items] Equity, Capital Unit or Share [Table] Equity, Capital Unit or Share [Table] Unamortized debt issuance expense Unamortized Debt Issuance Expense Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Cash and cash equivalents Cash and Cash Equivalent Unproved properties Unproved Properties [Member] Unproved Properties Letter of credit, facility B Letter Of Credit, Facility B [Member] Letter Of Credit, Facility B Counterparty Name [Axis] Counterparty Name [Axis] Subsequent Event [Line Items] Subsequent Event [Line Items] Common stock Common Stock [Member] Vested (in shares) Vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Subscription agreements Subscription Agreements [Member] Subscription Agreements Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Non-NEOs Non-NEOs [Member] Finance leases Finance Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] Australian Bank Bill Swap Rate [Member] Australian Bank Bill Swap Rate