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Annual Report & Accounts for Year End 30 June 2025

In brief · summary, not quotable

FY25 loss of AUD $10.3m reflects strategic shift to helium; revenue from continuing operations up to AUD $504k.

  • Revenue from continuing operations AUD $504k (prior AUD $186k)
  • Net loss AUD $10.3m (prior AUD $1.5m)
  • Cash at year-end AUD $3.9m (prior AUD $0.9m)
  • Loss per share (0.055) cents (prior (0.022) cents)
  • Sagebrush working interest acquired 82.5%
  • Impairment expense AUD $4.7m
Full announcement

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Mosman Oil and Gas Limited (AIM: MSMN), the helium, hydrogen and hydrocarbon company, announces that its Annual Report and Accounts for the financial year ended 30 June 2025 have today been released and are available on the Company's website at: www.mosmanoilandgas.com/investors

The Annual Report will also be sent to shareholders who have elected to receive hard copies.

Key Highlights

  • Revenue from continued operations increased to AUD $504k (FY24: $186k). Revenue from continuing operations increased during the year, primarily reflecting the acquired production at Sagebrush. On a consolidated basis, revenue decreased materially compared with the prior year due to the absence of revenue from discontinued operations following the divestment of oil assets.
  • Net loss of AUD $10.3m (FY24: $1.5m),
  • Cash at year-end of AUD $3.9m. Cash balance 25 September 2025 $2.6m.
  • Strategic repositioning to helium exploration and development, with Sagebrush in Colorado established as the cornerstone asset.
  • Progressing completion of exit from legacy oil interests, aligning operations fully with helium growth strategy.
  • Strengthened Board and management team with new appointments and governance enhancements.

Carl Dumbrell, Executive Chairman of Mosman, commented: "FY25 marked a transformational year for Mosman as we repositioned the business squarely towards helium - a critical and high-value global resource. With Sagebrush validated by independent resource auditing and on track for seismic acquisition and flow testing in FY26, we are entering a period of significant value-driving activity. The divestment of non-core oil interests has sharpened our focus and positioned us to move decisively in this new phase. I am confident that Mosman now has the assets, team and strategy in place to unlock substantial shareholder value. On behalf of the Board, I thank shareholders for their continued support as we deliver on the exciting opportunities ahead."

Additional Information

Copies of the Annual Report will be submitted to the National Storage Mechanism and will shortly be available for inspection at:

Strategic Overview

FY25 has been a year of transition, with Mosman continuing its strategic shift from hydrocarbons to helium exploration and development. This reflects the Board's recognition of helium as a high-value, growth market essential to technology, healthcare and clean energy.

While exploration carries inherent risks, our growing helium portfolio and strengthened balance sheet position Mosman well for future progress.

Financial Performance

  • Revenue: $504K (2024: $186K), Revenue from continuing operations increased during the year, primarily reflecting the acquired production at Sagebrush. On a consolidated basis, revenue decreased materially compared with the prior year due to the absence of revenue from discontinued operations following the divestment of oil assets.
  • Net Loss: $10.317m (2024: $1.545m), due to exploration and project development costs and impairment of assets.
  • Cash at Year-End: $3.939m, supported by disciplined cost control and selective fundraising. Cash balance 25 September 2025 $2.6m.

The Company remains in an early-stage development phase, with losses consistent with its investment in exploration and project advancement.

Operations Report

Helium Portfolio (USA)

Sagebrush Project, Colorado

o Mosman acquired an 82.5% working interest in the Sagebrush Helium Project during the year.

o Independent technical assessment confirmed prospective resources.

o Work programs and permitting are advancing, with drilling planned in FY26. This remains the primary focus of our helium strategy.

Vecta Helium Project, Arizona

o Mosman acquired a 20% working interest in the Vecta Helium Project.

o Drilling undertaken in FY25 was unsuccessful,and no commercial helium was encountered.

o Mosman has impaired the balance of this project in full.

o While disappointing, this outcome is part of the inherent risk of exploration. The Company has gained valuable geological knowledge that will be applied to other projects.

Collectively, our helium portfolio offers exposure to multiple prospects, with Sagebrush now the cornerstone asset.

  • Oil & Gas Portfolio
  • Mosman completed its exit from the Stanley oil interests in Texas, aligning operations more directly with its helium focus.
  • Minor residual production from legacy assets continued but is no longer a material component of the Group.
  • Corporate Developments
  • Appointment of Graham Duncan and Andrew Scott as Non-Executive Directors and Tina Loh as Chief Financial Officer and Company Secretary,strengthening marketing, financial management and governance.
  • Corporate structure simplified with the establishment of Mosman Helium LLC to reflect the helium-focused strategy.
  • Incentive options issued to management, aligning leadership with shareholder value creation.
  • Since year end the company has appointed Howard McLaughlin as interim CEO.

Outlook

The year ahead will focus on:

  • Drilling and testing at Sagebrush to establish the project's commercial potential.
  • Applying exploration insights to refine future helium targeting.
  • Maintaining financial discipline while advancing projects toward production.

While exploration results can be mixed, Mosman is now positioned with a focused helium strategy, a cornerstone project in Sagebrush, and a disciplined approach to growth.

Acknowledgements

On behalf of the Board, I thank our management team, employees, and advisers for their commitment during a challenging but pivotal year. I also wish to thank our shareholders for their continued support as Mosman advances its helium strategy.

We look forward to updating you on further progress at Sagebrush & Coyote Wash and across our portfolio in FY26.

A summary of the current oil and gas projects as at 25 September 2025:

US PROJECTS

Asset/ ProjectMosman InterestLocationStatus
Sagebrush82.5%ColoradoDrilled
Coyote Wash100%ColoradoUndrilled
Cinnabar75.0%TexasProducing
Cinnabar Extended78.0%TexasUndrilled
Arkoma27%OklahomaProducing
Vecta Helium Project20%ColoradoDrilled
AUSTRALIAN EXPLORATION PROJECTS
Asset/ProjectMosman InterestLocationStatusPermit NumberLicence Renewal DateComments
Australia, Amadeus Basin100% (subject to farm- in dilution)NTExplorationEPA 155Application stageNegotiating land access with CLC
ROYALTIES
Asset/ ProjectMosman Royalt InterestLocationStatus
Vecta Helium - Billy Goat5%Colorado, USADrilled
EP 1455%NT, AusUndrilled

Consolidated Statement of Profit or Loss and Other Comprehensive Income Year Ended 30 June 2025

All amounts are in Australian Dollars

NotesConsolidatedConsolidated
20252024
$(restated)
$
Revenue from continuing operations22503,573186,232
Cost of sales2(222,089)(109,870)
Gross profit281,48476,362
Interest income58698
Other income60,000-
Administrative expenses(246,816)(299,696)
Corporate expenses3(1,600,179)(902,768)
Directors' fees18(196,333)(125,380)
Exploration expenses incurred, not capitalised(598,921)(7,525)
Employee benefits expense-(48,268)
Finance costs(5,066)(5,642)
Amortisation expense12(225,260)(216,685)
Depreciation expense-(6,220)
Share based payment expense27(169,662)-
Impairment expense11, 12(4,718,502)-
Gains / (loss) on foreign exchange133,672(10,707)
Loss before income tax expense from
continuing operations(7,285,524)(1,545,831)
Income tax expense5--
Loss after income tax expense from
continuing operations(7,285,524)(1,545,831)
Loss after income tax expense from discontinued
operations10(3,032,184)(594,241)
Net loss after income tax expense for the
year(10,317,708)(2,140,072)
Other comprehensive income
Items that may be reclassified to profit or loss:
- Foreign currency gains4170,25913,956
Total comprehensive income /(loss)
attributable to members of the entity(10,147,449)(2,126,116)

Total comprehensive income (loss) for the

year attributable to:

(7,285,524) (1,531,875) (3,032,183) (594,241) (10,147,449) (2,126,116)

Continuing operations Discontinued operations

The accompanying notes form part of these financial statements.

Consolidated Statement of Profit or Loss and Other Comprehensive Income Year Ended 30 June 2025

All amounts are in Australian Dollars

ConsolidatedConsolidated
20252024
Notes$$
Basic and diluted loss per share from continuing
operations (cents per share)21(0.039) cents(0.016) cents
Basic and diluted loss per share from
discontinued operations (cents per share)21(0.016) cents(0.006) cents
Basic and diluted loss per share (cents per share)21(0.055) cents(0.022) cents

The accompanying notes form part of these financial statements.

Consolidated Statement of Financial Position As at 30 June 2025 All amounts are in Australian Dollars

NotesConsolidated 30 June 2025Consolidated 30 June 2024
$$
Current Assets Cash and cash equivalents73,939,471873,665
Trade and other receivables8153,768140,241
Other assets933,08220,186
4,126,3211,033,792
Assets classified as held for sale10-3,227,483
Total Current Assets4,126,3214,261,275
Non-Current Assets Oil and gas assets11961,8323,685,367
Capitalised oil and gas exploration12150,0001,503,925
Total Non-Current Assets1,111,8325,189,292
Total Assets5,238,1539,450,576
Current Liabilities Trade and other payables13876,6071,438,420
Provisions143,630-
880,2371,438,420
Liabilities classified as held for sale10-887,507
Total Current Liabilities880,2372,325,927
Non-Current Liabilities
Provisions1440,94187,966
Total Non-Current Liabilities40,94187,966
Total Liabilities921,1782,413,893
Net Assets4,316,9757,036,674
Shareholders' Equity Contributed equity1549,704,97842,404,962
Other contributed equity-145,029
Reserves161,347,754904,732
Accumulated losses17(46,735,757)(36,418,049)
Total Shareholders' Equity4,316,9757,036,674

The accompanying notes form part of these financial statements.

Consolidated Statement of Changes in Equity Year Ended 30 June 2025. All amounts are in Australian Dollars

Accumulated Losses Contributed Equity Other Contributed Equity Reserves Total $ $ $ $ $ Balance at 1 July 2024 (36,418,049) 42,404,962 145,029 904,732 7,036,674 Comprehensive income Loss for the period (10,317,708) - - - (10,317,708) Other comprehensive income for the period - - - 170,259 170,259 Total comprehensive loss (10,317,708) - 170,259 (10,147,449)

for the period -

Transactions with owners, in their capacity as owners, and other transfers:

  • 7,635,010 - - 7,635,010 - (480,023) - (480,023) - - - 272,763 272,763 - 145,029 (145,029) - - - 7,300,016 (145,029) 272,763 7,427,750 (46,735,757) 49,704,978 - 1,347,754 4,316,975 Accumulated Contributed Other Reserves Total Losses Equity Contributed Equity $ $ $ $ $ (34,295,295) 40,675,340 - 908,094 7,288,139 (2,140,072) - - - (2,140,072) - - - 13,956 13,956 (2,140,072) - 13,956 (2,126,116)

New shares issued Cost of raising equity Warrants issued

Transfer from other contributed equity

Total transactions with owners and other transfers Balance at 30 June 2025

Balance at 1 July 2023

Comprehensive income Loss for the period Other comprehensive income for the period

Total comprehensive loss

for the period -

Transactions with owners, in their capacity as owners, and other transfers:

New shares issued-1,827,348--1,827,348
Cost of raising equity-(113,303)-(113,303)
Share applications--145,029-145,029
Warrants issued---15,57715,577
Warrants expired17,318--(17,318)-
Transfer from warrants reserve upon exercise of warrants-15,577-(15,577)-
Total transactions with owners and other transfers17,3181,729,622145,029(17,318)1,874,651
Balance at 30 June 2024(36,418,049)42,404,962145,029904,7327,036,674

These accompanying notes form part of these financial statements

Consolidated Statement of Cash Flows Year Ended 30 June 2025 All amounts are in Australian Dollars

NotesConsolidated 2025Consolidated 2024
$$
Cash flows from operating activities
Receipts from customers479,5211,368,885
Payments to suppliers and employees(1,999,261)(1,892,011)
Interest paid(5,065)(5,642)
Net cash outflow from operating activities22(1,524,805)(528,768)
Cash flows from investing activities
Payments for oil and gas assets(2,790,024)(785,767)
Payments for exploration and evaluation-(83,394)
Payments for company acquisition-(152,527)
Acquisition of oil and gas production projects-(76,264)
Proceeds from farm-in of exploration assets160,000
Proceeds from sale of investments755,386
Cash allocated to held for sale assets-(24,201)
Net cash outflow from investing activities(2,034,638)(962,153)
Cash flows from financing activities
Proceeds from shares issued6,971,9201,827,348
Proceeds from other contributed equity-145,029
Payments for costs of capital(480,023)(113,303)
Net cash inflow from financial activities6,491,8791,859,074
Net increase in cash and cash equivalents2,932,436368,153
Effects of exchange rate changes on cash and
cash equivalents133,670(15,403)
Cash and cash equivalents at the beginning of
the financial year873,365520,615
Cash and cash equivalents at the end of the
financial year73,939,471873,365

The accompanying notes from part of these financial statements

Notes to the Financial Statements Year Ended 30 June 2025

All amounts are Australian Dollars

1 Statement of Accounting Policies

The principal accounting policies adopted in preparing the financial statements of Mosman Oil and Gas Limited (or "the Company'') and Controlled Entities ("Consolidated entity" or "Group"), are stated to assist in a general understanding of the financial report. These policies have been consistently applied to all the years presented, unless otherwise indicated.

Mosman Oil and Gas Limited is a Company limited by shares incorporated and domiciled in Australia.

Basis of Preparation

These financial statements have been prepared in accordance with Australian Accounting Standards (including Australian Interpretations) adopted by the Australian Accounting Standards Board and the Corporations Act 2001. Compliance with Australian Accounting Standards ensures that the financial statements also comply with International Financial Reporting Standards.

The financial statements have been prepared on the basis of historical costs and does not take into account changing money values or, except where stated, current valuations of non-current assets.

Going Concern

The financial statements have been prepared on the going concern basis. As at 30 June 2025, the consolidated entity incurred a net loss of $10,317,708 during the year ended 30 June 2025 and, as of that date, the group had a cash balance of $3,937,471.

The financial statements have been prepared on the going concern basis, which contemplates the continuity of normal business activity and the realization of assets and settlement of liabilities in the normal course of business.

In forming this view the directors have taken into consideration the following:

Should the Company or the Group not be able to achieve the matters set out above, there is a significant uncertainty related to events or conditions that may cast significant doubt on the Company and the Group's ability to continue as a going concern, and, therefore, that it may be unable to realise its assets and discharge its liabilities in the normal course of business.

The financial statements were authorised for issue by the Directors on 25 September 2025.

Principles of Consolidation and Equity Accounting

The consolidated financial statements incorporate the assets, liabilities and results of entities controlled by Mosman Oil and Gas Limited at the end of the reporting period. A controlled entity is any entity over which Mosman Oil and Gas Limited has the ability and right to govern the financial and operating policies so as to obtain benefits from the entity's activities.

Under AASB 11 Joint Arrangements, investments in joint arrangements are classified as either joint operations or joint ventures. The classification depends on the contractual rights and obligations of each investor, rather than the legal structure of the joint arrangement. Mosman Oil and Gas Limited has a working interest in various joint operations.

Joint ventures

Equity method

The carrying amount of equity-accounted investments is tested for impairment in accordance with the policy described in note 1(s).

Use of Estimates and Judgements

Critical Accounting Estimates and Judgements

Impairment of Exploration and Evaluation Assets

The key areas of judgement and estimation include:

  • Recent exploration and evaluation results and resource estimates;
  • Environmental issues that may impact on the underlying tenements;

Taxation

Exploration and Evaluation Assets

Income Tax

Deferred income tax liabilities are recognised for all taxable temporary differences.

Discontinued operations

A discontinued operation is a component of the consolidated entity that has been disposed of or is classified as held for sale and that represents a separate major line of business or geographical area of operations, is part of a single coordinated plan to dispose of such a line of business or area of operations, or is a subsidiary acquired exclusively with a view to resale. The results of discontinued operations are presented separately on the face of the statement of profit or loss and other comprehensive income.

Goods and Services Tax

Revenues, expenses and assets are recognised net of the amount of GST except:

  • Receivables and payables are stated with the amount of GST included;
  • Exploration and Evaluation Assets

Where a resource has been identified and where it is expected that future expenditures will be recovered by future exploitation or sale, the impairment of the exploration and evaluation is written back and transferred to development costs. Once production commences, the accumulated costs for the relevant area of interest are amortised over the life of the area according to the rate of depletion of the economically recoverable reserves.

  • Non-current assets or disposal groups classified as held for sale

An impairment loss is recognised for any initial or subsequent write down of the non-current assets and assets of disposal groups to fair value less costs of disposal. A gain is recognised for any subsequent increases in fair value less costs of disposal of a non-current assets and assets of disposal groups, but not in excess of any cumulative impairment loss previously recognised.

Non-current assets are not depreciated or amortised while they are classified as held for sale. Interest and other expenses attributable to the liabilities of assets held for sale continue to be recognised.

  • Accounts Payable
  • Contributed Equity

Issued Capital

Incremental costs directly attributable to the issue of ordinary shares and share options and warrants are recognised as a deduction from equity, net of any related income tax benefit.

Earnings Per Share

Basic earnings per share ("EPS") are calculated based upon the net loss divided by the weighted average number of shares in issue. Diluted EPS are calculated as the net loss divided by the weighted average number of shares and dilutive potential shares.

  • Share-Based Payment Transactions
  • Comparative Figures
  • Financial Risk Management
  • Financial Instruments

Recognition, initial measurement and derecognition

Classification and subsequent measurement of financial assets

Hybrid contracts

Subsequent measurement of financial assets

  • financial assets at amortised cost
  • financial assets at fair value through profit or loss (FVPL)
  • debt instruments at fair value through other comprehensive income (FVOCI)
  • equity instruments at fair value through other comprehensive income (FVOCI)

Classifications are determined by both:

  • the entity's business model for managing the financial asset
  • the contractual cash flow characteristics of the financial assets

Financial assets at amortised cost

After initial recognition, these are measured at amortised cost using the effective interest method. Discounting is omitted where the effect of discounting is immaterial. The Company's cash and cash equivalents, trade and most other receivables fall into this category of financial.

Financial assets at fair value through profit or loss (FVPL)

Debt instruments at fair value through other comprehensive income (Debt FVOCI)

Equity instruments at fair value through other comprehensive income (Equity FVOCI) Investments in equity instruments that are not held for trading are eligible for an irrevocable election at inception to be measured at FVOCI. Under this category, subsequent movements in fair value are recognised in other comprehensive income and are never reclassified to profit or loss. Dividend income is taken to profit or loss unless the dividend clearly represents return of capital.

Impairment of financial assets

  • Oil and gas assets
  • Impairment of Assets

At each reporting date, the Group reviews the carrying values of its tangible and intangible assets to determine whether there is any indication that those assets have been impaired. If such an indication exists, the recoverable amount of the asset, being the higher of the asset's fair value less costs to sell and value in use, is compared to the asset's carrying value. Any excess of the asset's carrying value over its recoverable amount is expensed to the income statement. Impairment testing is performed annually for goodwill and intangible assets with indefinite lives.

Where it is not possible to estimate the recoverable amount of an individual asset, the Group estimates the recoverable amount of the cash-generating until to which the asset belongs.

  • Employee Entitlements
  • Provisions
  • Cash and Cash Equivalents

Cash and cash equivalents include cash on hand, deposits held at call with banks, other short-term

highly liquid investments with original maturities of 3 months or less, and bank overdrafts. Bank overdrafts are shown within short-term borrowings in current liabilities on the balance sheet.

Revenue and Other Income

Revenue and other income is measured at the fair value of the consideration received or receivable. Amounts disclosed as revenue are net of returns, trade allowances, rebates and amounts collected on behalf of third parties.

Revenue from Joint Operations is recognised based on its share of the sale by joint operation.

Business combinations

Business combinations are initially accounted for on a provisional basis. The acquirer retrospectively adjusts the provisional amounts recognised and also recognises additional assets or liabilities during the measurement period, based on new information obtained about the facts and circumstances that existed at the acquisition-date. The measurement period ends on either the earlier of (i) 12 months from the date of the acquisition or (ii) when the acquirer receives all the information possible to determine fair value.

Acquisition of Subsidiary Not Deemed a Business Combination

When an acquisition of assets does not constitute a business combination, the assets and liabilities are assigned a carrying amount based on their relative fair values in an asset purchase transaction and no deferred tax will arise in relation to the acquired assets and assumed liabilities as the initial exemption for deferred tax under AASB 12 applies. No goodwill will arise on the acquisition and transaction costs

of the acquisition will be included in the capitalised cost of the asset.

Foreign Currency Translation

Functional currency

Presentation currency

The financial statements are presented in Australian dollars, which is the Group's presentation currency. Functional currency balances are translated into the presentation currency using the exchange rates at the balance sheet date. Value differences arising from movements in the exchange rate is recognised in the statement of comprehensive income.

  • Joint operations
  • New standards and interpretations Account Standard and Interpretation

Consolidated

2025

Consolidated

2024

$ $

2 Cost of sales Cost of sales4,8638,950
Lease operating expenses217,226100,920
222,089109,870
3 Corporate Costs Accounting, Company Secretary and Audit fees238,309192,405
Consulting fees - board361,200349,000
Consulting fees - other479,40993,077
NOMAD and broker expenses155,349157,449
Legal and compliance fees305,911110,837
1,540,179902,768
4 Other comprehensive profit
Foreign currency gains170,25913,956
170,25913,956

5 Income Tax

  • Numerical reconciliation of income tax expense to prima facie tax payable
ConsolidatedConsolidated
2025 $2024 $
Loss before tax(10,317,708)(2,140,071)
Income tax calculated at 25% (2023: 25%)(2,564,427)(535,018)
Tax effect of amounts which are deductible/non-
deductible In calculating taxable income:
Impairment expense1,123,721123,526
Upfront exploration expenditure claimed(64,266)(20,849)
Other107,72513,177
Effects of unused tax losses and tax offsets not
recognised as deferred tax assets1,412,247419,164
Income tax expense attributable to operating profitNILNIL

Tax Losses

As at 30 June 2025 the Company had tax losses of $38,413,978 (2024: $34,345,264). The benefit of deferred tax assets not brought to account will only be realised if:

  • Future assessable income is derived of a nature and of an amount sufficient to enable the benefit to be realised; and
  • The conditions for deductibility imposed by tax legislation continue to be complied with and no changes in tax legislation adversely affect the Company in realising the benefit.
  • Unbooked Deferred Tax Assets and Liabilities

Deferred tax assets are estimated but not recognised at $9,603,494 at 30 June 2025 (2024:$8,586,316) so as to enable the Board to determine more reliably the probability of utilising these tax assets in the foreseeable future.

ConsolidatedConsolidated
20252024
$$
6 Auditors Remuneration
Audit - Elderton Audit Pty Ltd
Audit of the financial statements35,60032,300
35,60032,300
7 Cash and Cash Equivalents
Cash at Bank3,939,471873,365
3,939,471873,365
8Trade and Other Receivables
Joint interest billing receivables*27,8449,023
Deposits56,05656,056
GST receivable-(13,161)
Accrued revenue65,23183,794
Other receivables4,5804,529
153,768140,241

* When appropriate, unpaid joint interest billing receivables are recovered from the interest holders share of production income.

ConsolidatedConsolidated
20252024
$$
9Other Assets
Prepayments30,54317,647
Incorporation costs2,5392,539
33,08220,186

10 Assets and Liabilities Classified as Held For Sale

On 10 June 2024, the Company announced the sale of its interest in Nadsoilco LLC. On 2 October 2024, the Company further announced that it had completed the sale for consideration of up to US$1.75 million.

The Company received the $500K initial payment, impaired $500K in the half year accounts to 31 December 2024. The Directors have performed a weighted probability of each tranche of the production milestones. As production targets have not been achieved, the directors have assessed that the expected receivable at period end is nil and impaired the remaining balance.

ConsolidatedConsolidated
2025 $2024 $
Assets
Cash and cash equivalents-24,202
Trade and other receivables-532,126
Other Assets-48,243
Oil and Gas Assets-2,622,912
Total Assets Held for Sale-3,227,483
Liabilities
Trade and other payables-746,027
Provisions-92,784
Total Liabilities Held for Sale-838,811
Net Assets Held for Sale-2,339,976
Discontinued operations
(a) Financial performanceConsolidatedConsolidated
2025 $2024 $
Revenue-1,065,319
Cost of sales-(716,479)
Gross profit-348,840
Administrative expenses-(131,636)
Amortisation expense-(223,228)
Impairment expense-(588,217)
Loss on sale of Nadsoilco, LLC(1,816,196)-
Impairment of interest in EP145(1,215,988)-
Loss before income tax expense-(594,241)
Income tax expense--
Loss after income tax expense from
discontinued operations (3,032,184) (594,241)
(b) Cash flow information
Consolidated 2025Consolidated 2024
$$
Net cash from operating activities-122,493
Net cash from investing activities771,367-
Net cash used in investing activities(322,169)
Net increase/(decrease) in cash and cash equivalents771,367(209,676)

11 Oil and Gas Assets

Consolidated

2025

$

Consolidated

2024

$

Cost brought forward3,685,3675,780,587
Acquisition of oil and gas assets during the year2,175,287754,831
Capitalised equipment workovers during the year785,767
Amortisation for the year(225,260)(439,912)
Transfer to assets held for sale(2,622,912)
Impairment of oil and gas assets 1(4,767,026)(588,217)
Impact of Foreign Exchange on amortisation/impairment51,828
Impact of Foreign Exchange on opening balances41,63615,223
Carrying value at end of year961,8323,685,367
  • Impairment of $4,767,026 was recognized in relation to capitalized oil and gas assets held in Mosman Texas and Mosman Helium, being the carrying value of Cinnabar, Arkoma and Vecta (US Oil and Gas Assets). The Board has carried out an impairment assessment of the Oil and Gas Assets and have concluded that these assets have nil carrying value.

12 Capitalised Oil and Gas Expenditure

Cost brought forward1,503,9251,420,531
Exploration costs incurred during the year-83,394
Impairment of oil and gas expenditure 1(1,353,925)-
Carrying value at end of year150,0001,503,925
  • Impairment of $1,353,925 was recognized in relation to exploration permit EP 145, bringing down the carrying value of the asset to $150,000, which represent value of the long lead items. Mosman will retain 5% of helium and hydrogen royalty over the project (based on sales price, no deduction of costs), however this does not form part of the carrying value of the asset, despite the potential future upside.

13 Trade and Other Payables

CURRENT

Trade creditors 1156,611457,389
Amounts owing for Vecta Helium project-679,348
Deposits received-160,000
Other creditors and accruals-141,683
876,6071,438,420
14 Provisions
CURRENT Provision3,630-
NON- CURRENT Provision for abandonment40,94187,966
44,57187,966

Consolidated

2025

Consolidated

2024

$ $

15 Contributed Equity

Ordinary Shares:

Value of Ordinary Shares fully paid

Movement in Contributed Equity Number of shares

Contributed

Equity $

Balance as at 1 July 2024: 12,821,362,930 42,404,962

1/07/2024Shares issued (ii)$0.00048224,000,000106,834
2/07/2024Shares issued (ii)$0.0004880,000,00038,195
5/07/2024Shares issued (ii)$0.00048220,000,000104,550
5/07/2024Shares issued (ii)$0.00048600,000,000285,136
16/07/2024Shares issued (ii)$0.0004880,000,00038,000
22/07/2024Shares issued (ii)$0.00048340,000,000163,673
26/07/2024Shares issued (ii)$0.00049120,000,00058,294
29/07/2024Shares issued (iii)$0.0006650,000,000766,208

1/08/2024

16/09/2024

5/12/2024 Shares issued (iv) $0.00035 42,857,144 29,400 22/05/2025 Shares issued (i) $0.00045 2,777,777,778 2,616,130 27/05/2025 Shares issued (i) $0.00045 666,666,666 629,148 Capital raising costs (480,023)

19/09/2024

Shares issued (ii) Shares issued (ii) Shares issued (ii) Shares issued (i)

$0.00025 16,000,000 7,881 $0.00025 100,000,000 49,171 $0.00035 4,242,857,144 2,887,420

Balance at end of year 22,981,521,662 49,704,979

  • Placements via capital raising as announced
  • Shares issued upon conversion of warrants
  • Shares issued to suppliers
  • Shares issued to Directors as part of placement
  • Shares issued to

16 Reserves

Consolidated

2025

$

Consolidated

2024

$

Foreign currency translation reserve 1,074,991 904,732

Warrants reserve 272,763 -

1,347,754 904,732

Warrant Reserve

Nature and purpose of the Warrant Reserve

The warrant reserve represents the fair value of equity instruments issued to employees as compensation and issued to external parties for the receipt of goods and services. This reserve will be reversed against issued capital when the underlying shares are converted and reversed against retained earnings when they are allowed to lapse.

Movement in Warrants Reserve

Warrants reserve at the beginning of the year - 17,318

Warrants issued 272,763 15,577

Transfer from warrants reserve upon exercise of warrants

(15,577)

Warrants expired - (17,318)

Warrants reserve at the end of the year 272,763 -

Warrants

As of the date of signing this report, unissued ordinary shares of the Company under option were:

Grant DateNumber of Warrants on IssueExercise PriceExpiry Date
20 July 2023428,571,4280.07 Great British Pence20 July 2025
5 December 202380,000,0000.025 Great British Pence5 December 2025
8 February 2024120,000,0000.025 Great British Pence8 February 2026
13 February 202463,157,8950.025 Great British Pence13 February 2026
19 September 2024254,571,4280.035 Great British Pence19 September 2026
10 December 2024194,942,2000.077 Great British Pence10 December 2027
30 June 2025229,815,2170.077 Great British Pence4 July 2028
Total Unlisted Warrants1,371,058,168

During the period 254,571,428 warrants were issued to brokers as part of their fee for facilitating a placement of shares in the period. The warrants were fair valued at AU$0.0004 per warrant, and an amount of $103,101 was recognised as a capital raising cost. The warrants are valued using the Binomial Method with the following inputs:

Share price at issue date 0.0348 British Pence

Exercise price 0.0350 British Pence

Risk-Free Interest Rate 3.68%

Volatility 117%

Subsequent to shareholder approval at the Group's 2024 AGM held on 29 November 2024, Mr Andrew

Carroll were granted the following options:

  • 194,942,200 options. The options were fair valued at AU$0.0004 per option, and an amount of $81,486 was recognised as a share based payment expense. The options are valued using the Binomial Method with the following inputs:

Share price at issue date 0.0358 British Pence

Exercise price 0.0770 British Pence

Risk-Free Interest Rate 4.04%

Volatility 117%

  • 229,815,217 options. The options were fair valued at AU$0.0003 per option, and an amount of $88,176 was recognised as a share based payment expense as at 30 June 2025. The options are valued using the Black-Scholes option pricing model with the following inputs:

Share price at issue date 0.04 British Pence

Exercise price 0.0770 British Pence

Risk-Free Interest Rate 3.75%

Volatility 100%

The above warrants represent unissued ordinary shares of the Company under option as at the date of this report.

No person entitled to exercise any option has or had, by virtue of the option, a right to participate in any share issue of any other body corporate.

Foreign Currency Translation Reserve

Nature and purpose of the Foreign Currency Translation Reserve

Movement in Foreign Currency Translation Reserve

Foreign Currency Translation Reserve at the beginning of the year904,732890,776
Current year movement443,02213,956
Foreign Currency Translation Reserve at the end of the
year 1,347,754 904,732
17 Accumulated Losses
Accumulated losses at the beginning of the year36,418,04934,168,097
Net loss attributable to members10,317,7082,140,072
Warrants expired-(17,318)
Accumulated losses at the end of the year46,735,75736,418,049

Consolidated

2025

$

Consolidated

2024

$

18 Related Party Transactions

Key Management Personnel Remuneration

Cash Payments to Directors and Management (i)695,033540,380
Non-cash payment to Directors (ii)169,662
Total864,695540,380
  • During the year to 30 June 2025:
  • Director fees of $60,000 were paid or are payable to Mr Nigel Harvey;
  • Director fees of $60,000 were paid or are payable to Mr Andrew Carroll, and consulting fees of $481,200 were paid or are payable to Australasian Energy Pty Ltd, entity controlled by Mr Andrew Carroll;
  • Director fees of $60,000 were paid or are payable to Mr Carl Dumbrell;
  • Director fees of $11,333 were paid or are payable to Mr Graham Duncan;

accounting firm, CDTL.

  • Former CFO, Company Secretary and Consulting Fees totaling $55,000 were paid or are

payable to Mr J T White's accounting firm, Traverse Accountants Pty Ltd.

  • During the year to 30 June 2025, Mr Andrew Carroll (former CEO) received 424,757,417 warrants, comprising:
  • 194,942,200 warrants issued on 10 December 2024 at no cost, have a strike price of 0.00077 GBP and expire on 10 December 2027. The fair value of these warrants were $81,486 AUD;
  • 229,815,217 warrants issued on 4 July 2025 at no cost, have a strike price of 0.00077 GBP and expire on 4 July 2028. The fair value of these warrants were $88,176 AUD.

Movement in Shares and Warrants

The aggregate numbers of shares and warrants of the Company held directly, indirectly or beneficially by Key Management Personnel of the Company or their personally-related entities are fully detailed in the Directors' Report.

Amounts owing to the Company from subsidiaries:

Trident Energy Pty Ltd

At 30 June 2025 the Company's 100% owned subsidiary, Trident Energy Pty Ltd, owed Mosman Oil and Gas Limited $4,053,771 (2024: $4,017,276).

OilCo Pty Ltd

At 30 June 2025 the Company's 100% owned subsidiary, OilCo Pty Ltd (OilCo), owed Mosman Oil and Gas Limited $714,358 (2024: $764,358).

Mosman Oil USA, Inc

At 30 June 2025 the Company's 100% owned subsidiary, Mosman Oil USA, Inc, owed Mosman Oil and

Gas Limited $10,774,542 (2023: $9,679,815).

Adagio Resources Limited

At 30 June 2025 the Company's 100% owned subsidiary, Adagio Resources Limited, owed Mosman Oil and Gas Limited $nil (2024: $4,984).

19 Expenditure Commitments

Consolidated 2024

Consolidated

2024

$ $

Exploration

EntityTenement2025 $2024 $
Trident Energy Pty LtdEP145 1--
Oilco Pty LtdEPA155--
--
  • EP145 is currently under extension until 21 February 2025. End date is 21st February 2027
  • Capital Commitments

The Company had no other capital commitments at 30 June 2025 (2024: $NIL).

20 Segment Information

Operating segments are identified by the board based on the Oil and Gas projects in Australia and the USA. Discrete financial information about each project is reported to the board on a regular basis.

Segment performance

United States $Australia $Total $
Year ended 30 June 2024
Revenue
Revenue186,232-186,232
Interest income-698698
Segment revenue186,232698186,930
Segment Result
Allocated
- Corporate costs-(902,768)(902,768)
- Administrative costs(155,539)(144,157)(299,696)
- Lease operating expenses(100,920)-(100,920)
- Cost of sales(8,950)-(8,950)
Segment net profit (loss) before tax(79,177)(1,046,227)(1,125,404)
Reconciliation of segment result to loss before taxnet

Amounts not included in segment result but reviewed by the Board

- Exploration expenses incurred not capitalised(7,525)
- Amortisation(216,685)
Unallocated items
- Employee benefits expense(277,819)
- Loss on foreign exchange(10,707)
- Depreciation(6,220)
- Finance costs(5,066)
Net Loss before tax from continuing operations(1,545,831)

Segment performance

$ Australia $ Total $ Year ended 30 June 2025 Revenue Revenue 503,573 - 503,573 Other income - 60,000 60,000 Interest income - 58 58 Loss on sale of assets - - - Segment revenue 503,573 60,058 563,631 Segment Result Allocated - Corporate costs (524,335) (1,075,844) (1,600,179) - Administrative costs (67,071) (179,744) (246,816) - Lease operating expenses (217,226) - (217,226) - Cost of sales (4,863) - (4,863)

United States

Segment net profit (loss) before tax (309,922) (1,195,531) (1,505,453)

Reconciliation of segment result to net loss before tax

Amounts not included in segment result but reviewed by the Board

Exploration expenses incurred not

capitalised (598,921)

  • Amortisation (225,260)
  • Impairment (5,934,490)

Unallocated items

  • Employee benefits expense (365,995)
  • Gain on foreign exchange 133,672
  • Finance costs (5,066)

Net Loss before tax from continuing

operations (7,285,524)

Segment assets

United States

$

Australia

$

Total

$

Total assets as at 1 July 20246,231,4292,331,6318,563,060
Segment asset balances at end of year
- Exploration and evaluation-2,503,9432,503,943
- Capitalised Oil and Gas Assets8,382,043-8,382,043
- Less: Amortisation(832,869)-(832,869)
- Less: Impairment(6,587,341)(2,353,943)(8,941,284)
961,832150,0001,111,832
Reconciliation of segment assets to total assets:
Other assets 291,5183,834,8014,126,320
Total assets from continuing operations As at 30 June 2025 1,253,3513,984,8015,238,152
United StatesAustraliaTotal
$$$
Total assets as at 1 July 2023 7,017,4071,652,2698,669,676
Segment asset balances at end of year
- Assets held for sale2,339,976-2,339,976
- Exploration and evaluation-8,684,8438,684,843
- Capitalised Oil and Gas Assets8,685,937-8,685,937
- Less: Amortisation(603,134)-(603,134)
- Less: Impairment(4,397,436)(7,180,918)(11,578,354)
6,025,3431,503,9257,529,268
Reconciliation of segment assets to total assets:
Other assets206,086827,7061,033,792
Total assets from continuing operations
As at 30 June 20246,231,4292,331,6318,563,060
(iii) Segment liabilities
United States $Australia $Total $
Segment liabilities as at 1 July 20241,091,441434,9451,526,386
Segment liability increases (decreases) for the year(386,158)(219,051)(605,208)
705,283215,894921,178
Reconciliation of segment liabilities to total
liabilities:
Other liabilities---
Total liabilities from continuing operations As at 30 June 2025705,283215,894921,178
Segment liabilities as at 1 July 20231,152,168183,4051,381,537
Segment liability increases (decreases) for the year(60,727)45,964144,849
1,091,441434,9451,526,386
Reconciliation of segment liabilities to total
liabilities:
Other liabilities---
Total liabilities from continuing operations As at 30 June 20241,091,441434,9451,526,386
21 Loss per share
ConsolidatedConsolidated
2025 $2024 $

The following reflects the loss and share data used in

the calculations of basic and diluted loss per share:

Loss used in calculating basic and diluted earnings/ loss

per share from continuing operations(7,285,524)(1,545,831)
Loss used in calculating basic and diluted earnings/ loss
per share from discontinued operations(3,032,183)(594,241)
Number ofNumber of
sharesshares
20252024
Weighted average number of ordinary shares used in
calculating basic loss per share:18,816,614,5959,907,661,135
Basic and diluted loss per share from continuing0.0550.016
operations (cents per share)
Basic and diluted loss per share from discontinued operations (cents per share)0.0160.006
Basic and diluted loss per share (cents per share)0.0390.022
22 Notes to the statement of cash flows
Reconciliation of loss from ordinary activities afterConsolidatedConsolidated
income tax to net cash outflow from operating activities:20252024
$$
Loss from ordinary activities after related income tax(10,317,708)(2,140,072)
Depreciation and amortisation225,260446,132
Impairment expense5,934,490588,217
Decrease in trade and other receivables3,372,033781,298
Increase / (decrease) in trade and other payables(605,208)252,970

Transfer of trade and other payables to oil and gas

assets-(472,715)
Unrealised FX(133,672)15,402
Net cash outflow from operating activities(1,524,805)(528,768)
23 Financial Instruments
(i) Interest Rate Risk
Consolidated 2025NoteFunds AvailableFixedAssets/Total
Weightedat aInterest(Liabilities)
AverageFloatingRateNon
EffectiveInterestInterest
InterestRateBearing
%$$$$
Financial Assets
Cash and Cash
Equivalents73.80%3,939,470--3,939,470
Trade and other
Receivables8--153,768153,768
Other assets9--33,08233,082
Total Financial
Assets3,939,470-186,8504,126,320
Financial Liabilities
Trade and other
Payables14--876,607876,607
Provisions15--44,57144,571
Total Financial
Liabilities--921,178921,178
Net Financial
Assets/(Liabilities)3,939,470-(734,328)3,205,142
Consolidated 2024NoteFunds AvailableFixedAssets/Total
Weightedat aInterest(Liabilities)
AverageFloatingRateNon
EffectiveInterestInterest
InterestRateBearing
%$$$$
Financial Assets
Cash and Cash
Equivalents73.80%873,365--873,365
Trade and other
Receivables8--863,639140,241
Other assets9--78,08620,186
Total Financial
Assets873,365-160,4271,033,792
Financial Liabilities
Trade and other
Payables14--1,438,4201,438,420
Provisions15--87,96687,966
Total Financial
Liabilities--1,526,3861,526,386
Net Financial
Assets/(Liabilities)520,613-(1,365,959)(492,594)
  • Credit Risk
  • Commodity Price Risk and Liquidity Risk
  • Net Fair Values

23 Contingent Liabilities

24 Mosman Oil and Gas Limited - Parent Entity Disclosures

2025 $2024 $
Financial position Assets Current assets3,764,101789,677
Non-current assets15,759,88712,937,481
Total assets19,523,98913,727,158
Liabilities
Current liabilities206,627274,945
Total liabilities146,627274,945
Net assets19,317,36113,452,213
Equity Contributed equity49,704,30942,404,293
Other contributed equity272,763145,029
Accumulated losses(30,659,711)(29,097,109)
Total Equity19,317,36113,452,213
Financial Performance Loss for the year(1,502,603)(1,245,812)
Other comprehensive income--
Total comprehensive loss(1,502,603)(1,245,812)
25 Controlled Entities
Investments in group entities comprise:
Name Principal activities Incorporation
Beneficial percentage held by economic entity
2025 %2024 %
Mosman Oil and Gas LimitedParent entityAustralia
Wholly owned and controlled
entities:
OilCo Pty LimitedOil & Gas explorationAustralia100100
Trident Energy Pty LtdOil & Gas explorationAustralia100100
Adagio Resources LimitedOil & Gas explorationAustralia100100
Mosman Oil USA, INC.Oil & Gas operationsU.S.A.100100
Mosman Texas, LLCOil & Gas operationsU.S.A.100100
Mosman Operating, LLCOil & Gas operationsU.S.A.100100
Mosman Helium, LLCOil & Gas operationsU.S.A.100100
Nadsoilco, LLCOil & Gas operationsU.S.A.-100

Mosman Oil and Gas Limited is the Parent Company of the Group, which includes all of the controlled entities.

26 Share Based Payments

Consolidated

2025

Consolidated

2024

Cents Cents

Basic loss per share (cents per share) 0.055 0.0222

A summary of the movements of all company warrant issues to 30 June 2025 is as follows:

Company Warrants2025 Number of Warrants2024 Number of Warrants2025 Weighted Average Exercise Price2024 Weighted Average Exercise Price
Outstanding at the beginning of the year3,043,157,8941,288,928,571$0.0010$0.0027
Expired(571,427,571)(717,500,000)$0.0027$0.0027
Exercised(1,780,000,000)(484,000,000)$0.0002$0.0002
Granted679,328,8452,955,729,323$0.0006$0.0006
Outstanding at the end of the year1,371,048,1683,043,157,894$0.0010$0.0010
Exercisable at the end of the year1,371,048,1683,043,157,894$0.0015$0.0010

27 Events Subsequent to the End of the Financial Year

Subsequent to the end of the reporting period the Company announced the following material matters:

  • On 4 July 2025 Andrew Carroll resigned as a director.

There were no other material matters that occurred subsequent to 30 June 2025.

Entity nameEntity typePlace formed / Country of incorporationOwnership interest %Tax residency
Mosman Oil and Gas LimitedBody corporateAustraliaAustralia
OilCo Pty LimitedBody corporateAustralia100%Australia
Trident Energy Pty LtdBody corporateAustralia100%Australia
Adagio Resources LimitedBody corporateAustralia100%Australia
Mosman Oil USA, INC.Body corporateUSA100%USA
Mosman Texas, LLCBody corporateUSA100%USA
Mosman Operating, LLCBody corporateUSA100%USA
Mosman Helium, LLCBody corporateUSA100%USA

Consolidated Entity Disclosure Statement

Cleaned text: letterheads, contacts and legal notices removed. View the original announcement ↗ · Company filings. Not investment advice.

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