CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2023	Sep. 30, 2023
Current assets:
Cash and cash equivalents	$ 3,223	$ 2,830
Accounts and other receivables, net of allowance for credit losses of: $334,000 at December 31, 2023; $284,000 at September 30, 2023	3,278	3,246
Other current assets	2,622	3,009
Total current assets	9,123	9,085
Asset for retirement benefits	4,561	4,471
Operating lease right-of-use assets	34	54
Property and equipment:
Proved oil and natural gas properties (full cost method)	83,348	80,851
Drilling rigs and other property and equipment	7,231	7,223
Total property and equipment	90,579	88,074
Accumulated depletion, impairment, depreciation, and amortization	(69,292)	(66,263)
Total property and equipment, net	21,287	21,811
Total assets	35,005	35,421
Current liabilities:
Accounts payable	1,344	881
Accrued capital expenditures	587	1,099
Accrued compensation	673	726
Accrued operating and other expenses	1,747	1,747
Current portion of asset retirement obligation	1,825	1,536
Other current liabilities	469	609
Total current liabilities	6,645	6,598
Operating lease liabilities	36	47
Liability for retirement benefits	1,687	1,664
Asset retirement obligation	8,416	8,297
Deferred income tax liabilities	56	58
Total liabilities	16,840	16,664
Commitments and contingencies
Equity:
Common stock, par value $0.50 per share; authorized, 40,000,000 shares: 10,168,006 issued at December 31, 2023; 10,158,678 issued at September 30, 2023	5,084	5,079
Additional paid-in capital	7,747	7,687
Retained earnings	5,496	6,160
Accumulated other comprehensive income, net	2,113	2,104
Treasury stock, at cost: 167,900 shares at December 31, 2023 and September 30, 2023	(2,286)	(2,286)
Total stockholders' equity	18,154	18,744
Non-controlling interests	11	13
Total equity	18,165	18,757
Total liabilities and equity	$ 35,005	$ 35,421