Note 7 - Oil and Gas Exploration and Production Industries Disclosures: Summary of Changes Present Value of Estimated Future Net Revenue (Tables)

12 Months Ended

Sep. 30, 2018

Tables/Schedules

Summary of Changes Present Value of Estimated Future Net Revenue

	Year ended September 30
	2018	2017
Present value of estimated future net revenue, beginning of year	$       71,000	$    49,000
Sales, net of production costs	(59,000)	(56,000)
Net change in prices and cost of future production	75,000	35,000
Revisions of quantity estimates	19,000	24,000
Accretion of discount	8,000	5,000
Change in production rates and other	6,000	14,000
Present value of estimated future net revenue, end of year	$      120,000	$   71,000