REVENUE FROM CONTRACTS WITH CUSTOMERS - DISAGGREGATION OF REVENUE (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Revenue before interest income	$ 6,140	$ 7,482
Oil
Disaggregation of Revenue [Line Items]
Revenue before interest income	3,892	3,484
Natural gas
Disaggregation of Revenue [Line Items]
Revenue before interest income	712	1,302
Natural gas liquids
Disaggregation of Revenue [Line Items]
Revenue before interest income	526	440
Drilling and pump
Disaggregation of Revenue [Line Items]
Revenue before interest income	993	1,948
Contingent residual payments
Disaggregation of Revenue [Line Items]
Revenue before interest income		265
Other
Disaggregation of Revenue [Line Items]
Revenue before interest income	17	43
United States
Disaggregation of Revenue [Line Items]
Revenue before interest income	1,748	2,732
Canada
Disaggregation of Revenue [Line Items]
Revenue before interest income	4,392	4,750
Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue before interest income	5,147	5,534
Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue before interest income	993	1,948
Oil and natural gas
Disaggregation of Revenue [Line Items]
Revenue before interest income	5,130	5,226
Oil and natural gas | Oil
Disaggregation of Revenue [Line Items]
Revenue before interest income	3,892	3,484
Oil and natural gas | Natural gas
Disaggregation of Revenue [Line Items]
Revenue before interest income	712	1,302
Oil and natural gas | Natural gas liquids
Disaggregation of Revenue [Line Items]
Revenue before interest income	526	440
Oil and natural gas | Drilling and pump
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0
Oil and natural gas | Contingent residual payments
Disaggregation of Revenue [Line Items]
Revenue before interest income		0
Oil and natural gas | Other
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0
Oil and natural gas | United States
Disaggregation of Revenue [Line Items]
Revenue before interest income	754	517
Oil and natural gas | Canada
Disaggregation of Revenue [Line Items]
Revenue before interest income	4,376	4,709
Oil and natural gas | Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue before interest income	5,130	5,226
Oil and natural gas | Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0
Contract drilling
Disaggregation of Revenue [Line Items]
Revenue before interest income	993	1,948
Contract drilling | Oil
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0
Contract drilling | Natural gas
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0
Contract drilling | Natural gas liquids
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0
Contract drilling | Drilling and pump
Disaggregation of Revenue [Line Items]
Revenue before interest income	993	1,948
Contract drilling | Contingent residual payments
Disaggregation of Revenue [Line Items]
Revenue before interest income		0
Contract drilling | Other
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0
Contract drilling | United States
Disaggregation of Revenue [Line Items]
Revenue before interest income	993	1,948
Contract drilling | Canada
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0
Contract drilling | Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0
Contract drilling | Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue before interest income	993	1,948
Land investment
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	265
Land investment | Oil
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0
Land investment | Natural gas
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0
Land investment | Natural gas liquids
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0
Land investment | Drilling and pump
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0
Land investment | Contingent residual payments
Disaggregation of Revenue [Line Items]
Revenue before interest income		265
Land investment | Other
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0
Land investment | United States
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	265
Land investment | Canada
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0
Land investment | Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	265
Land investment | Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0
Other
Disaggregation of Revenue [Line Items]
Revenue before interest income	17	43
Other | Oil
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0
Other | Natural gas
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0
Other | Natural gas liquids
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0
Other | Drilling and pump
Disaggregation of Revenue [Line Items]
Revenue before interest income	0	0
Other | Contingent residual payments
Disaggregation of Revenue [Line Items]
Revenue before interest income		0
Other | Other
Disaggregation of Revenue [Line Items]
Revenue before interest income	17	43
Other | United States
Disaggregation of Revenue [Line Items]
Revenue before interest income	1	2
Other | Canada
Disaggregation of Revenue [Line Items]
Revenue before interest income	16	41
Other | Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue before interest income	17	43
Other | Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue before interest income	$ 0	$ 0