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SEGMENT INFORMATION
 9 Months Ended
Jun. 30, 2026
Segment Reporting [Abstract]  
SEGMENT INFORMATION SEGMENT INFORMATION
 
As disclosed in Note 3 “Discontinued Operations,” on March 14, 2025, the Company completed the sale of Water Resources, which represented the Company’s contract drilling segment. The financial results of the Company’s contract drilling business have been presented as discontinued operations and therefore are excluded from segment reporting. Accordingly, Barnwell’s continuing operations include the following two principal business segments:

Oil and Natural Gas Segment - Barnwell engages in oil and natural gas development, production, acquisitions and sales in Canada. Additionally, through its wholly-owned subsidiaries, Barnwell was, until August 8, 2025, involved in several non-operated oil and natural gas investments in Oklahoma and Texas.

Land Investment Segment - Barnwell owns leasehold land interests in Hawaii.
The following table presents certain financial information related to Barnwell’s reporting segments. All revenues reported are from external customers with no intersegment sales or transfers.
Three months ended
June 30,		Nine months ended
June 30,
2026202520262025
Revenues:
Oil and natural gas$3,341,000 $3,153,000 $8,454,000 $10,593,000 
Land investment— — 70,000 — 
Other26,000 25,000 71,000 58,000 
Total before interest income3,367,000 3,178,000 8,595,000 10,651,000 
Interest income12,000 14,000 65,000 44,000 
Total revenues$3,379,000 $3,192,000 $8,660,000 $10,695,000 
Cost and expenses:
Oil and natural gas$2,038,000 $2,082,000 $5,952,000 $6,564,000 
Depletion, depreciation, and amortization:
Oil and natural gas$546,000 $844,000 $1,690,000 $2,501,000 
Other— — 9,000 1,000 
Total depletion, depreciation, and amortization$546,000 $844,000 $1,699,000 $2,502,000 
Impairment:
Oil and natural gas$— $200,000 $— $865,000 
Operating profit (before general and administrative expenses):
Oil and natural gas$757,000 $27,000 $812,000 $663,000 
Land investment— — 70,000 — 
Other26,000 25,000 62,000 57,000 
Total operating profit783,000 52,000 944,000 720,000 
Equity in income of affiliates:
Land investment376,000 — 714,000 — 
General and administrative expenses(1,409,000)(1,868,000)(4,546,000)(5,193,000)
Foreign currency gain (loss)(56,000)219,000 (67,000)(122,000)
Interest expense(1,000)(4,000)(1,000)(5,000)
Interest income12,000 14,000 65,000 44,000 
Loss from continuing operations before income taxes$(295,000)$(1,587,000)$(2,891,000)$(4,556,000)

Capital Expenditures:
Nine months ended June 30,
20262025
Oil and natural gas$19,000 $2,704,000 
Other— — 
Total$19,000 $2,704,000 
    Oil and natural gas capital expenditures include acquisitions as well as changes to capitalized asset retirement obligations, including revisions of asset retirement obligations (see Note 7 for additional details).  

Assets By Segment:
June 30,
2026		September 30,
2025
Oil and natural gas (1)
Canada$7,904,000 $11,118,000 
Other:
Cash and cash equivalents4,467,000 2,886,000 
Asset for retirement benefits6,312,000 5,928,000 
Corporate and other2,806,000 880,000 
Total$21,489,000 $20,812,000 
______________
(1)          Primarily located in the province of Alberta, Canada.
 
Long-Lived Assets By Geographic Area:
June 30,
2026		September 30,
2025
United States$6,703,000 $5,965,000 
Canada8,300,000 9,617,000 
Total$15,003,000 $15,582,000 
 
Revenue By Geographic Area:
Three months ended
June 30,		Nine months ended
June 30,
2026202520262025
United States$— $347,000 $70,000 $1,078,000 
Canada3,367,000 2,831,000 8,525,000 9,573,000 
Total (before interest income)$3,367,000 $3,178,000 $8,595,000 $10,651,000