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SEGMENT INFORMATION (Details) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Revenues: |  |  |  |
Revenue before interest income | $ 5,108,000 | $ 3,983,000 | $ 13,493,000 | $ 13,399,000
Interest income | 6,000 | 1,000 | 6,000 | 17,000
Total revenues | 5,114,000 | 3,984,000 | 13,499,000 | 13,416,000
Depletion, depreciation, and amortization: |  |  |  |
Depletion, depreciation, and amortization | 235,000 | 478,000 | 738,000 | 1,870,000
Asset Impairment Charges |  |  |  |
Impairment of assets | 0 | 2,689,000 | 630,000 | 4,326,000
Operating profit (loss) (before general and administrative expenses): |  |  |  |
Operating profit (loss) (before general and administrative expenses) | 2,130,000 | (2,132,000) | 3,615,000 | (492,000)
Equity in income (loss) of affiliates: |  |  |  |
Equity in income (loss) of affiliates | 3,348,000 | (111,000) | 5,026,000 | (179,000)
General and administrative expenses | (2,227,000) | (1,248,000) | (5,340,000) | (4,775,000)
Interest expense | (2,000) | (1,000) | (6,000) | (1,000)
Interest income | 6,000 | 1,000 | 6,000 | 17,000
Gain on debt extinguishment | 149,000 | 0 | 149,000 | 0
Gain on termination of post-retirement medical plan | 2,341,000 | 0 | 2,341,000 | 0
Earnings (loss) before income taxes | 5,745,000 | (3,491,000) | 5,791,000 | (5,430,000)
Intersegment eliminations |  |  |  |
Revenues: |  |  |  |
Total revenues |  |  | 0 |
Oil and natural gas |  |  |  |
Revenues: |  |  |  |
Revenue before interest income | 2,887,000 | 830,000 | 7,326,000 | 4,881,000
Total revenues | 2,887,000 | 830,000 | 7,326,000 | 4,881,000
Depletion, depreciation, and amortization: |  |  |  |
Depletion, depreciation, and amortization | 155,000 | 372,000 | 496,000 | 1,562,000
Asset Impairment Charges |  |  |  |
Impairment of assets | 0 | 2,689,000 | 630,000 | 4,326,000
Operating profit (loss) (before general and administrative expenses): |  |  |  |
Operating profit (loss) (before general and administrative expenses) | 1,015,000 | (3,212,000) | 1,289,000 | (4,486,000)
Contract drilling |  |  |  |
Revenues: |  |  |  |
Revenue before interest income | 889,000 | 3,040,000 | 4,220,000 | 8,279,000
Total revenues | 889,000 | 3,040,000 | 4,220,000 | 8,279,000
Depletion, depreciation, and amortization: |  |  |  |
Depletion, depreciation, and amortization | 76,000 | 96,000 | 229,000 | 272,000
Operating profit (loss) (before general and administrative expenses): |  |  |  |
Operating profit (loss) (before general and administrative expenses) | (213,000) | 977,000 | 392,000 | 2,455,000
Land investment |  |  |  |
Revenues: |  |  |  |
Revenue before interest income | 1,253,000 | 0 | 1,738,000 | 0
Total revenues | 1,253,000 | 0 | 1,738,000 | 0
Operating profit (loss) (before general and administrative expenses): |  |  |  |
Operating profit (loss) (before general and administrative expenses) | 1,253,000 | 0 | 1,738,000 | 0
Other |  |  |  |
Revenues: |  |  |  |
Revenue before interest income | 79,000 | 113,000 | 209,000 | 239,000
Total revenues | 85,000 | 114,000 | 215,000 | 256,000
Depletion, depreciation, and amortization: |  |  |  |
Depletion, depreciation, and amortization | 4,000 | 10,000 | 13,000 | 36,000
Operating profit (loss) (before general and administrative expenses): |  |  |  |
Operating profit (loss) (before general and administrative expenses) | 75,000 | 103,000 | 196,000 | 203,000
Gain on sale of asset |  |  |  |
Operating profit (loss) (before general and administrative expenses): |  |  |  |
Operating profit (loss) (before general and administrative expenses) | $ 0 | $ 0 | $ 0 | $ 1,336,000

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