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Asset Retirement Obligations (Tables) | 12 Months Ended
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Jun. 30, 2016
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 obligation for the years ended June 30, 2016 and 2015:
| Years Ended
| 2016 |  | 2015
Asset retirement obligations—beginning of period | $ | 772,990 |  |  | $ | 352,215 |
Liabilities incurred (a) | 28,505 |  |  | 564,019 |
Liabilities settled | — |  |  | (137,604 | )
Liabilities sold | — |  |  | (52,526 | )
Accretion of discount | 49,054 |  |  | 34,866 |
Revisions to previous estimates | 111,647 |  |  | 12,020 |
Asset retirement obligations — end of period | 962,196 |  |  | 772,990 |
Less: current asset retirement obligations | (201,896 | ) |  | (57,223 | )
Long-term portion of asset retirement obligations | $ | 760,300 |  |  | $ | 715,767 |
(a) Liabilities incurred during fiscal 2015 relate to our share of the estimated abandonment costs of the wells and facilities in the Delhi field subsequent to the reversion of our working interest.

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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://www.xbrl.org/2003/role/presentationRef -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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