CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Revenues:
Oil and natural gas	$ 4,383	$ 3,177
Contract drilling	3,938	2,233
Sale of interest in leasehold land	4,503	2,255
Residential real estate	0	5,700
Gas processing and other	206	262
Total revenues	13,030	13,627
Costs and expenses:
Oil and natural gas operating	3,028	3,142
Contract drilling operating	3,231	2,098
Residential real estate	0	5,510
General and administrative	6,976	6,701
Depletion, depreciation, and amortization	1,203	1,607
Impairment of assets	155	1,154
Gain on sales of assets	(527)	(472)
Interest expense	6	97
Total costs and expenses	14,072	19,837
Loss before equity in income of affiliates and income taxes	(1,042)	(6,210)
Equity in income of affiliates	2,276	2,624
Earnings (loss) before income taxes	1,234	(3,586)
Income tax benefit	(1,080)	(722)
Net earnings (loss)	2,314	(2,864)
Less: Net earnings attributable to non-controlling interests	1,143	751
Net earnings (loss) attributable to Barnwell Industries, Inc. stockholders	$ 1,171	$ (3,615)
Basic net earnings (loss) per common share attributable to Barnwell Industries, Inc. stockholders (in dollars per share)	$ 0.14	$ (0.44)
Diluted net earnings (loss) per common share attributable to Barnwell Industries, Inc. stockholders (in dollars per share)	$ 0.14	$ (0.44)
Weighted-average number of common shares outstanding:
Basic (in shares)	8,277,160	8,277,160
Diluted (in shares)	8,277,160	8,277,160