CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Revenues:
Oil and natural gas	$ 953	$ 1,141
Contract drilling	842	1,406
Sale of interest in leasehold land	0	1,678
Gas processing and other	61	65
Total revenues	1,856	4,290
Costs and expenses:
Oil and natural gas operating	658	846
Contract drilling operating	821	1,164
General and administrative	1,481	2,027
Depletion, depreciation, and amortization	280	324
Total costs and expenses	3,240	4,361
Loss before equity in (loss) income of affiliates and income taxes	(1,384)	(71)
Equity in (loss) income of affiliates	(153)	2,326
(Loss) earnings before income taxes	(1,537)	2,255
Income tax (benefit) provision	(503)	53
Net (loss) earnings	(1,034)	2,202
Less: Net (loss) earnings attributable to non-controlling interests	(17)	561
Net (loss) earnings attributable to Barnwell Industries, Inc.	$ (1,017)	$ 1,641
Basic and diluted net (loss) earnings per common share attributable to Barnwell Industries, Inc. stockholders (in dollars per share)	$ (0.12)	$ 0.20
Weighted-average number of common shares outstanding:
Basic and diluted (in shares)	8,277,160	8,277,160