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Asset Retirement Obligations (Tables)
12 Months Ended
Jun. 30, 2019
Asset Retirement Obligation Disclosure [Abstract]  
Schedule of reconciliation of the beginning and ending asset retirement obligation
The following is a reconciliation of the beginning and ending asset retirement obligations for the years ended June 30, 2019 and 2018:
 
Years Ended
 
2019
 
2018
Asset retirement obligations — beginning of period
$
1,422,955

 
$
1,288,743

Liabilities incurred
31,268

 
44,700

Accretion of discount
101,506

 
90,290

Revisions to previous estimates
55,116

 
(778
)
Asset retirement obligations — end of period
1,610,845

 
1,422,955

Less: current asset retirement obligations
(50,244
)
 
(35,539
)
Long-term portion of asset retirement obligations
$
1,560,601

 
$
1,387,416