ASSET RETIREMENT OBLIGATION (Details) - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
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| Asset Retirement Obligation [Line Items] | |||
| Balance | $ 7,957,035 | $ 7,401,950 | $ 3,896,489 |
| Liabilities acquired | 3,361,634 | ||
| Liabilities incurred | 1,297,289 | 308,509 | 171,635 |
| Liabilities settled | (766,595) | (240,606) | (446,192) |
| Accretion expense | 567,968 | 487,182 | 418,384 |
| Balance | $ 9,055,697 | $ 7,957,035 | $ 7,401,950 |
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- Definition Amount of asset retirement obligations acquired during the period. No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount recognized for the passage of time, typically for liabilities, that have been discounted to their net present values. Excludes accretion associated with asset retirement obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of asset retirement obligations incurred during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of asset retirement obligations settled, or otherwise disposed of, during the period. This may include asset retirement obligations transferred to third parties associated with the sale of a long-lived asset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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