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SUPPLEMENTARY OIL AND NATURAL GAS INFORMATION (UNAUDITED) (Details) bbl in Thousands, Mcf in Thousands, Boe in Thousands, $ in Thousands | 12 Months Ended
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Sep. 30, 2021 USD ($) Boe bbl Mcf | Sep. 30, 2020 USD ($) Boe bbl Mcf
Changes in the estimates of net interests in total proved reserves of oil and natural gas liquids and natural gas |  |
Proved developed reserves - total | Boe | 1,138 |
Proved undeveloped reserves - total | Boe | 4 |
Changes in the estimates of net interests in total proved reserves of oil and natural gas liquids and natural gas |  |
Balance at the beginning of the period | Boe | 933 | 2,198
Revisions of previous estimates | Boe | 523 | (1,041)
Acquisitions of reserves | Boe | 130 | 176
Less sales of reserves | Boe | (156) | (114)
Less production | Boe | (288) | (286)
Balance at the end of the period | Boe | 1,142 | 933
Capitalized Costs Relating to Oil and Natural Gas Producing Activities |  |
Proved properties | $ 58,490 | $ 64,142
Unproved properties | 962 | 0
Total capitalized costs | 59,452 | 64,142
Accumulated depletion, depreciation, and impairment | 56,067 | 61,839
Net capitalized costs | 3,385 | 2,303
Costs Incurred in Oil and Natural Gas Property Acquisition, Exploration and Development |  |
Acquisition of proved properties | 1,102 | 242
Acquisition of unproved properties | 0 | 0
Exploration Costs | 255 |
Development costs | 1,671 | 2,857
Total | 3,028 | 3,099
Additions and revisions to asset retirement obligation included in total costs incurred | 811 | (52)
Results of Operations for Oil and Natural Gas Producing Activities |  |
Net revenues | 10,254 | 6,693
Production costs | (6,556) | (4,850)
Depletion | (645) | (1,747)
Reduction of carrying value of oil and natural gas properties | (630) | (4,326)
Pre-tax results of operations | 2,423 | (4,230)
Estimated income tax benefit (expense) | 0 | 0
Results of operations | 2,423 | (4,230)
Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves [Abstract] |  |
Future cash inflows | 36,130 | 20,426
Future production costs | (25,323) | (17,860)
Future development costs | (240) | (73)
Future income tax expenses | (995) | (92)
Future net cash flows excluding abandonment, decommissioning and reclamation | 9,572 | 2,401
Future abandonment, decommissioning and reclamation | (14,525) | (13,055)
Future net cash flows | (4,953) | (10,654)
10% annual discount for timing of cash flows | 7,598 | 8,969
Standardized measure of discounted future net cash flows | 2,645 | (1,685)
Changes in the Standardized Measure of Discounted Future Net Cash Flows |  |
Beginning of year | (1,685) | 2,310
Sales of oil and natural gas produced, net of production costs | (3,604) | (1,843)
Net changes in prices and production costs, net of royalties and wellhead taxes | 5,702 | (1,876)
Net change due to purchases and sales of minerals in place | (882) | 467
Previously estimated development costs incurred | 0 | 1,305
Changes in future development costs | 0 | 7,773
Revisions of previous quantity estimates | 4,217 | (10,274)
Net change in income taxes | (845) | 288
Accretion of discount | (176) | 230
Other - changes in the timing of future production and other | (55) | (63)
Other - net change in Canadian dollar translation rate | (27) | (2)
Net change | 4,330 | (3,995)
End of year | 2,645 | (1,685)
United States |  |
Capitalized Costs Relating to Oil and Natural Gas Producing Activities |  |
Proved properties | 217 | 0
Unproved properties | 962 | 0
Total capitalized costs | 1,179 | 0
Accumulated depletion, depreciation, and impairment | 14 | 0
Net capitalized costs | 1,165 | 0
Costs Incurred in Oil and Natural Gas Property Acquisition, Exploration and Development |  |
Acquisition of proved properties | 70 | 0
Acquisition of unproved properties | 0 | 0
Exploration Costs | 0 |
Development costs | 1,108 | 0
Total | 1,178 | 0
Results of Operations for Oil and Natural Gas Producing Activities |  |
Net revenues | 118 | 0
Production costs | (24) | 0
Depletion | (14) | 0
Reduction of carrying value of oil and natural gas properties | 0 | 0
Pre-tax results of operations | 80 | 0
Estimated income tax benefit (expense) | 0 | 0
Results of operations | 80 | 0
Canada |  |
Capitalized Costs Relating to Oil and Natural Gas Producing Activities |  |
Proved properties | 58,273 | 64,142
Unproved properties | 0 | 0
Total capitalized costs | 58,273 | 64,142
Accumulated depletion, depreciation, and impairment | 56,053 | 61,839
Net capitalized costs | 2,220 | 2,303
Costs Incurred in Oil and Natural Gas Property Acquisition, Exploration and Development |  |
Acquisition of proved properties | 1,032 | 242
Acquisition of unproved properties | 0 | 0
Exploration Costs | 255 |
Development costs | 563 | 2,857
Total | 1,850 | 3,099
Results of Operations for Oil and Natural Gas Producing Activities |  |
Net revenues | 10,136 | 6,693
Production costs | (6,532) | (4,850)
Depletion | (631) | (1,747)
Reduction of carrying value of oil and natural gas properties | (630) | (4,326)
Pre-tax results of operations | 2,343 | (4,230)
Estimated income tax benefit (expense) | 0 | 0
Results of operations | $ 2,343 | $ (4,230)
OIL & NGL (Bbls) |  |
Changes in the estimates of net interests in total proved reserves of oil and natural gas liquids and natural gas |  |
Balance at the beginning of the period | bbl | 535 | 1,419
Revisions of previous estimates | bbl | 291 | (740)
Acquisitions of reserves | bbl | 80 | 68
Less sales of reserves | bbl | (97) | (38)
Less production | bbl | (169) | (174)
Balance at the end of the period | bbl | 640 | 535
Proved developed reserves - volume | bbl | 636 |
Proved undeveloped reserves - volume | bbl | 4 |
Natural gas |  |
Changes in the estimates of net interests in total proved reserves of oil and natural gas liquids and natural gas |  |
Balance at the beginning of the period | Mcf | 2,310 | 4,520
Revisions of previous estimates | Mcf | 1,345 | (1,746)
Acquisitions of reserves | Mcf | 289 | 628
Less sales of reserves | Mcf | (341) | (443)
Less production | Mcf | (690) | (649)
Balance at the end of the period | Mcf | 2,913 | 2,310
Proved developed reserves - volume | Mcf | 2,913 |
Proved undeveloped reserves - volume | Mcf | 0 |

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- Definition Total revenues from oil and gas producing activities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 23 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62136-109447 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62246-109447 + Details
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