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Asset Retirement Obligations (Tables)
3 Months Ended
Sep. 30, 2019
Asset Retirement Obligation Disclosure [Abstract]  
Schedule of reconciliations of the beginning and ending asset retirement obligation balances
The following is a reconciliation of the beginning and ending asset retirement obligations for the three months ended September 30, 2019 and for the year ended June 30, 2019:
 
September 30,
2019
 
June 30,
2019
Asset retirement obligations — beginning of period
$
1,610,845

 
$
1,422,955

Liabilities incurred

 
31,268

Accretion of discount
26,287

 
101,506

Revision of previous estimates

 
55,116

Asset retirement obligations — end of period
$
1,637,132

 
$
1,610,845

Less current portion in accrued liabilities
(50,244
)
 
(50,244
)
Long-term portion of asset retirement obligations
$
1,586,888

 
$
1,560,601