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Note 4 - Major Customers (Details)
12 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Details    
Concentration Risk, Additional Characteristic the Company had three customers who individually accounted for 10% or more of the Company's oil and gas sales and who, in aggregate, accounted for 94% of oil and gas sales the Company had three customers who individually accounted for 10% or more of the Company's oil and gas sales and who, in aggregate, accounted for 94% of oil and gas sales.
Concentration Risk, Other Risk the three customers individually accounted for 46%, 28% and 20% of oil and gas sales the three customers individually accounted for 37%, 32% and 25% of oil and gas sales.