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Asset Retirement Obligations (Tables) | 12 Months Ended
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Jun. 30, 2018
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, 2018 and 2017:
| Years Ended
| 2018 |  | 2017
Asset retirement obligations — beginning of period | $ | 1,288,743 |  |  | $ | 962,196 |
Liabilities incurred | 44,700 |  |  | 52,792 |
Liabilities settled | — |  |  | (157,164 | )
Liabilities sold | — |  |  | (47,817 | )
Accretion of discount | 90,290 |  |  | 59,664 |
Revisions to previous estimates | (778 | ) |  | 419,072 |
Asset retirement obligations — end of period | 1,422,955 |  |  | 1,288,743 |
Less: current asset retirement obligations | (35,539 | ) |  | (35,115 | )
Long-term portion of asset retirement obligations | $ | 1,387,416 |  |  | $ | 1,253,628 |

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- Definition Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13201-110859 + Details
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