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Note 10 - Supplemental Financial Data - Oil and Gas Producing Activities (Unaudited): Schedule of Proved Developed and Undeveloped Oil and Gas Reserve Quantities (Tables)
12 Months Ended
Sep. 30, 2021
Tables/Schedules  
Schedule of Proved Developed and Undeveloped Oil and Gas Reserve Quantities

 

 

Oil in Barrels

Balance at September 30, 2019

 

2,400  

Revisions of previous estimates

 

(700) 

Production

 

(600) 

Balance at September 30, 2020

 

1,100  

Revisions of previous estimates

 

700  

Production

 

(800) 

Balance at September 30, 2021

 

1,000