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

12 Months Ended

Sep. 30, 2023

Tables/Schedules

Standardized Measure of Discounted Cash Flows

Standardized Measure of Discounted Cash Flows
	At September 30,
	2023	2022
Estimated future revenue	$ 105,000	$ 110,000
Estimated future expenditures	(12,000)	(13,000)
Estimated future net revenue	93,000	97,000
10% annual discount of estimated future net revenue	(27,000)	(29,000)
Present value of estimated future net revenue	$ 66,000	$ 68,000