| **DERIVATIVE FINANCIAL INSTRUMENTS Additional Information (Details)** | Dec. 31, 2019 MMBbls | Dec. 31, 2018 MMBbls MBbls |
|-----------------------------------------------------------------------|----------------------|----------------------------|
| Propane [Member]                                                      |                 |                       |
| **Derivative [Line Items]**                                           |                 |                       |
| Portion of Future Oil and Gas Production Being Hedged (MBbls)         |                 | 1,095,000                  |
| Crude Oil [Member]                                                    |                 |                       |
| **Derivative [Line Items]**                                           |                 |                       |
| Portion of Future Oil and Gas Production Being Hedged (MBbls)         | 6,600,000            | 11,884,000                 |
| Natural Gas [Member]                                                  |                 |                       |
| **Derivative [Line Items]**                                           |                 |                       |
| Portion of Future Oil and Gas Production Being Hedged (MBbls) | MBbls |                 | 56,510,000                 |

| X                                                                                                                                                                                                                                                                                                                                                                                                           |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - 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.
+ References
No definition available.
+ Details**Name:**us-gaap_DerivativeLineItems**Namespace Prefix:**us-gaap_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The quantity of future oil and gas production being hedged.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 360 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 12.D.3(b)) -URI http://asc.fasb.org/extlink&oid=27015634&loc=d3e516453-122869
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| X                                                                                                                                                                                                                      |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| X                                                                                                                                                                                               |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| X                                                                                                                                                                                                         |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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