CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2016	Sep. 30, 2015
Current assets:
Cash and cash equivalents	$ 8,949	$ 8,471
Restricted cash	218	7,458
Accounts and other receivables, net of allowance for doubtful accounts of: $41,000 at March 31, 2016; $23,000 at September 30, 2015	1,283	2,300
Income taxes receivable	2,537	82
Investment held for sale	1,192	1,192
Real estate held for sale	5,132	5,132
Other current assets	1,423	1,043
Total current assets	20,734	25,678
Restricted cash, net of current portion	57	119
Investments	6,704	6,288
Property and equipment	78,730	75,953
Accumulated depletion, depreciation, and amortization	(69,150)	(66,485)
Property and equipment, net	9,580	9,468
Total assets	37,075	41,553
Current liabilities:
Accounts payable	1,557	2,653
Accrued capital expenditures	298	363
Accrued operating and other expenses	1,412	1,343
Accrued incentive and other compensation	337	560
Billings in excess of costs	111	569
Payable to joint interest owners	150	428
Current portion of asset retirement obligation	930	506
Current portion of long-term debt	3,440	3,440
Other current liabilities	123	141
Total current liabilities	8,358	10,003
Liability for retirement benefits	5,244	5,409
Asset retirement obligation	6,467	6,430
Deferred income taxes	493	449
Total liabilities	$ 20,562	$ 22,291
Commitments and contingencies (Note 13)
Equity:
Common stock, par value $0.50 per share; authorized, 20,000,000 shares: 8,445,060 issued at March 31, 2016 and September 30, 2015	$ 4,223	$ 4,223
Additional paid-in capital	1,340	1,335
Retained earnings	14,450	17,467
Accumulated other comprehensive loss, net	(1,929)	(2,122)
Treasury stock, at cost: 167,900 shares at March 31, 2016 and September 30, 2015	(2,286)	(2,286)
Total stockholders' equity	15,798	18,617
Non-controlling interests	715	645
Total equity	16,513	19,262
Total liabilities and equity	$ 37,075	$ 41,553