SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)

9 Months Ended

Jun. 30, 2025

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Principles of Consolidation

Principles of Consolidation

The condensed consolidated financial statements include the accounts of Barnwell Industries, Inc. and all majority-owned subsidiaries (collectively referred to herein as “Barnwell,” “we,” “our,” “us,” or the “Company”), including a 77.6%-owned land investment general partnership (Kaupulehu Developments) and a 75%-owned land investment partnership (KD Kona 2013 LLLP). All significant intercompany accounts and transactions have been eliminated.

    Undivided interests in oil and natural gas exploration and production joint ventures are consolidated on a proportionate basis. Barnwell’s investments in both unconsolidated entities in which a significant, but less than controlling, interest is held and in variable interest entities in which the Company is not deemed to be the primary beneficiary are accounted for by the equity method.

Unless otherwise indicated, all references to “dollars” in this Form 10-Q are to U.S. dollars.

Unaudited Interim Financial Information

Unaudited Interim Financial Information

The accompanying unaudited condensed consolidated financial statements and notes have been prepared by Barnwell in accordance with the rules and regulations of the United States (“U.S.”) Securities and Exchange Commission. Accordingly, certain information and footnote disclosures normally included in the annual consolidated financial statements prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) have been condensed or omitted pursuant to those rules and regulations, although the Company believes that the disclosures made are adequate to make the information not misleading. These condensed consolidated financial statements and notes should be read in conjunction with the consolidated financial statements and notes thereto included in Barnwell’s September 30, 2024 Annual Report on Form 10-K, as amended by our Form 10-K/A Amendment No. 1 (our “2024 Annual Report”). The Condensed Consolidated Balance Sheet as of September 30, 2024 has been derived from audited consolidated financial statements.

In the opinion of management, all adjustments (which include only normal recurring adjustments) necessary to present fairly the financial position at June 30, 2025, results of operations, comprehensive loss, and equity for the three and nine months ended June 30, 2025 and 2024, and cash flows for the nine months ended June 30, 2025 and 2024, have been made. The results of operations for the period ended June 30, 2025 are not necessarily indicative of the operating results for the full year.

Use of Estimates in the Preparation of Condensed Consolidated Financial Statements

Use of Estimates in the Preparation of Condensed Consolidated Financial Statements

The preparation of the condensed consolidated financial statements in conformity with U.S. GAAP requires management of Barnwell to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses and the disclosure of contingent assets and liabilities. Actual results could differ significantly from those estimates. Significant assumptions are required in the

valuation of deferred tax assets, asset retirement obligations, proved oil and natural gas reserves, and such assumptions may impact the amount at which such items are recorded.

Discontinued Operations

Discontinued Operations

On March 14, 2025, the Company entered into and completed the sale of its wholly-owned subsidiary, Water Resources International, Inc. (“Water Resources”). Water Resources drilled water wells and installed and repaired water pumping systems in Hawaii and represented our contract drilling segment. As a result of the sale, the Company has classified the related assets and liabilities and the results of its contract drilling business as discontinued operations in the condensed consolidated financial statements for all periods presented. Prior to the sale, the Company did not have any assurances that a sale of Water Resources was likely to occur. See Note 3 “Discontinued Operations” for further discussion and additional disclosures related to discontinued operations. Unless otherwise noted, the discussions in the Notes to Condensed Consolidated Financial Statements refers to the Company’s continuing operations.

Insurance Recoveries

Insurance Recoveries

The Company maintains directors and officers liability insurance coverage. Receipts from insurance claim reimbursements under the liability coverage, up to the amount of costs recognized are considered recoveries. These recoveries are accounted for when they are probable of receipt. Insurance recoveries are not recognized prior to the recognition of the related costs incurred. Any insurance receivable for recoveries is recorded separately from the corresponding liability, and only if recovery is determined to be probable and reasonably estimable.