CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Revenues:
Revenues	$ 4,850	$ 2,595
Costs and expenses:
General and administrative	1,496	1,548
Depletion, depreciation, and amortization	705	819
Impairment of assets	0	2,170
Interest expense	0	4
Total costs and expenses	5,228	7,194
Loss before equity in loss of affiliates and income taxes	(378)	(4,599)
Equity in loss of affiliates	(43)	(79)
Loss before income taxes	(421)	(4,678)
Income tax benefit	(2)	(105)
Net loss	(419)	(4,573)
Less: Net (loss) earnings attributable to non-controlling interests	(5)	27
Net loss attributable to Barnwell Industries, Inc.	$ (414)	$ (4,600)
Basic and diluted net loss per common share attributable to Barnwell Industries, Inc. stockholders (in dollars per share)	$ (0.05)	$ (0.56)
Weighted-average number of common shares outstanding:
Basic and diluted (in shares)	8,277	8,277
Oil and natural gas
Revenues:
Revenues	$ 2,141	$ 1,232
Costs and expenses:
Costs and expenses	1,213	1,337
Depletion, depreciation, and amortization	606	749
Impairment of assets	0	2,170
Contract drilling
Revenues:
Revenues	2,646	1,163
Costs and expenses:
Costs and expenses	1,814	1,316
Depletion, depreciation, and amortization	85	57
Land investment
Revenues:
Revenues	0	165
Gas processing and other
Revenues:
Revenues	63	35
Costs and expenses:
Depletion, depreciation, and amortization	$ 14	$ 13