CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities:
Net (loss) earnings	$ (26)	$ 3,738
Adjustments to reconcile net earnings (loss) to net cash provided by operating activities:
Equity in income of affiliates	(538)	(2,967)
Depletion, depreciation, and amortization	1,601	1,101
Gain on sale of assets	(551)	0
Sale of interest in leasehold land, net of fees paid	(233)	(1,137)
Distributions of income from equity investees	319	2,737
Retirement benefits income	(126)	(136)
Non-cash rent income	(12)	0
Accretion of asset retirement obligation	395	351
Deferred income tax benefit	(57)	(2)
Asset retirement obligation payments	(529)	(363)
Share-based compensation expense	190	427
Common stock issued for services	0	3
Retirement plan contributions and payments	(2)	(1)
Bad debt expense	18	44
Foreign currency gain	(80)	0
Increase (decrease) from changes in current assets and liabilities	365	(2,096)
Net cash provided by operating activities	734	1,699
Cash flows from investing activities:
Distribution from equity investees in excess of earnings	219	230
Proceeds from sale of interest in leasehold land, net of fees paid	233	1,137
Proceeds from the sale of contract drilling assets	0	687
Payments to acquire oil and natural gas properties	0	(1,563)
Capital expenditures - oil and natural gas	(7,306)	(5,223)
Capital expenditures - all other	(35)	(9)
Advances to operators for capital expenditures	(481)	0
Issuance of note receivable	0	(400)
Net cash used in investing activities	(7,370)	(5,141)
Cash flows from financing activities:
Distributions to non-controlling interests	(124)	(557)
Payment of dividends	(299)	0
Proceeds from issuance of stock, net of costs	0	2,356
Net cash (used in) provided by financing activities	(423)	1,799
Effect of exchange rate changes on cash and cash equivalents	34	(10)
Net decrease in cash and cash equivalents	(7,025)	(1,653)
Cash and cash equivalents at beginning of period	12,804	11,279
Cash and cash equivalents at end of period	$ 5,779	$ 9,626