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Supplemental Disclosure of Cash Flow Information
3 Months Ended
Sep. 30, 2021
Supplemental Cash Flow Elements [Abstract]  
Supplemental Disclosure of Cash Flow Information Supplemental Disclosure of Cash Flow Information
Supplemental disclosures of cash flow information:Three Months Ended
September 30,
 20212020
Income taxes paid$94 $248,000 
Income tax refunds received— 130,499 
Non-cash transactions:  
(Decrease) increase in accrued purchases of property and equipment(110,959)(55,311)
Oil and natural gas property costs attributable to the recognition of asset retirement obligations— 91,608