Note 10 - Supplemental Financial Data - Oil and Gas Producing Activities (Unaudited): Standardized Measure of Discounted Cash Flows (Tables)

12 Months Ended

Sep. 30, 2021

Tables/Schedules

Standardized Measure of Discounted Cash Flows

	At September 30
	2021	2020
Estimated future revenue	$51,000	$33,000
Estimated future expenditures	(6,000)	(2,000)
Estimated future net revenue	45,000	31,000
10% annual discount of estimated future net revenue	(12,000)	(8,000)
Present value of estimated future net revenue	$33,000	$23,000