CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2022	Sep. 30, 2022
Current assets:
Cash and cash equivalents	$ 6,736	$ 12,804
Accounts and other receivables, net of allowance for doubtful accounts of: $249,000 at December 31, 2022; $231,000 at September 30, 2022	4,316	4,361
Other current assets	3,246	2,932
Total current assets	14,298	20,097
Asset for retirement benefits	3,451	3,385
Operating lease right-of-use assets	114	132
Property and equipment:
Proved properties	69,421	67,883
Advances to operators for capital expenditures	3,464	0
Unproved properties	1,890	0
Drilling rigs and other property and equipment	6,935	6,923
Total property and equipment	81,710	74,806
Accumulated depletion, depreciation, and amortization	(62,712)	(61,205)
Total property and equipment, net	18,998	13,601
Total assets	36,861	37,215
Current liabilities:
Accounts payable	1,835	1,462
Accrued capital expenditures	266	1,655
Accrued compensation	1,063	999
Accrued operating and other expenses	1,420	1,576
Current portion of asset retirement obligation	1,665	1,327
Other current liabilities	1,302	1,908
Total current liabilities	7,551	8,927
Long-term debt	0	44
Operating lease liabilities	91	117
Liability for retirement benefits	1,670	1,649
Asset retirement obligation	7,163	7,129
Deferred income tax liabilities	176	188
Total liabilities	16,651	18,054
Commitments and contingencies
Equity:
Common stock, par value $0.50 per share; authorized, 40,000,000 shares: 10,124,587 issued at December 31, 2022 and September 30, 2022	5,062	5,062
Additional paid-in capital	7,466	7,351
Retained earnings	8,660	7,720
Accumulated other comprehensive income, net	1,276	1,294
Treasury stock, at cost: 167,900 shares at December 31, 2022 and September 30, 2022	(2,286)	(2,286)
Total stockholders' equity	20,178	19,141
Non-controlling interests	32	20
Total equity	20,210	19,161
Total liabilities and equity	$ 36,861	$ 37,215