Note 7 - Oil and Gas Exploration and Production Industries Disclosures: Summary of Changes Present Value of Estimated Future Net Revenue (Details) - USD ($)	12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Details
Present value of estimated future net revenue, beginning of year	$ 71,000	$ 49,000
Sales and Transfers of Oil and Gas Produced, Net of Production Costs	(59,000)	(56,000)
Net Increase (Decrease) in Sales and Transfer Prices and Production Costs	75,000	35,000
Revisions of quantity estimates	19,000	24,000
Accretion Expense	8,000	5,000
Standardized Measure of Discounted Future Net Cash Flow of Proved Oil and Gas Reserves, Other	6,000	14,000
Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves	$ 120,000	$ 71,000