CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2023	Sep. 30, 2022
Current assets:
Cash and cash equivalents	$ 5,779	$ 12,804
Accounts and other receivables, net of allowance for doubtful accounts of: $249,000 at March 31, 2023; $231,000 at September 30, 2022	2,965	4,361
Income taxes receivable	13	0
Other current assets	3,043	2,932
Total current assets	11,800	20,097
Asset for retirement benefits	3,515	3,385
Operating lease right-of-use assets	94	132
Property and equipment:
Proved properties	71,270	67,883
Advances to operators for capital expenditures	481	0
Unproved properties	4,873	0
Drilling rigs and other property and equipment	6,960	6,923
Total property and equipment	83,584	74,806
Accumulated depletion, impairment, depreciation, and amortization	(63,494)	(61,205)
Total property and equipment, net	20,090	13,601
Total assets	35,499	37,215
Current liabilities:
Accounts payable	1,808	1,462
Accrued capital expenditures	1,565	1,655
Accrued compensation	456	999
Accrued operating and other expenses	1,294	1,576
Current portion of asset retirement obligation	1,453	1,327
Other current liabilities	970	1,908
Total current liabilities	7,546	8,927
Long-term debt	0	44
Operating lease liabilities	69	117
Liability for retirement benefits	1,692	1,649
Asset retirement obligation	7,197	7,129
Deferred income tax liabilities	131	188
Total liabilities	16,635	18,054
Commitments and contingencies
Equity:
Common stock, par value $0.50 per share; authorized, 40,000,000 shares: 10,124,587 issued at March 31, 2023 and September 30, 2022	5,062	5,062
Additional paid-in capital	7,541	7,351
Retained earnings	7,273	7,720
Accumulated other comprehensive income, net	1,256	1,294
Treasury stock, at cost: 167,900 shares at March 31, 2023 and September 30, 2022	(2,286)	(2,286)
Total stockholders’ equity	18,846	19,141
Non-controlling interests	18	20
Total equity	18,864	19,161
Total liabilities and equity	$ 35,499	$ 37,215