CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Revenues:
Oil and natural gas	$ 940	$ 768	$ 3,490	$ 2,237
Contract drilling	360	120	3,346	1,502
Sale of interest in leasehold land	0	1,775	1,678	2,255
Residential real estate	0	5,700	0	5,700
Gas processing and other	40	126	145	237
Total revenues	1,340	8,489	8,659	11,931
Costs and expenses:
Oil and natural gas operating	620	757	2,266	2,510
Contract drilling operating	593	263	2,607	1,431
Residential real estate	0	5,510	0	5,510
General and administrative	1,344	1,709	5,119	5,145
Depletion, depreciation, and amortization	234	448	942	1,201
Impairment of oil and natural gas properties	0	1,154	0	1,154
Gain on sales of assets	(527)	(472)	(527)	(472)
Interest expense	1	19	7	85
Total costs and expenses	2,265	9,388	10,414	16,564
Loss before equity in (loss) income of affiliates and income taxes	(925)	(899)	(1,755)	(4,633)
Equity in (loss) income of affiliates	(31)	2,200	2,125	2,616
(Loss) earnings before income taxes	(956)	1,301	370	(2,017)
Income tax benefit	(442)	(72)	(676)	(529)
Net (loss) earnings	(514)	1,373	1,046	(1,488)
Less: Net (loss) earnings attributable to non-controlling interests	(2)	598	532	754
Net (loss) earnings attributable to Barnwell Industries, Inc.	$ (512)	$ 775	$ 514	$ (2,242)
Basic and diluted net (loss) earnings per common share attributable to Barnwell Industries, Inc. stockholders (in dollars per share)	$ (0.06)	$ 0.09	$ 0.06	$ (0.27)
Weighted-average number of common shares outstanding:
Basic and diluted (in shares)	8,277,160	8,277,160	8,277,160	8,277,160