| **CONCENTRATION OF RISK Customer Constituting 10% or more of Total Revenue (Details)** | 12 Months Ended |
|----------------------------------------------------------------------------------------|-----------------|
||
| Suncor Energy Marketing, Inc.                                                          |            |   |   |
| **Concentration Risk [Line Items]**                                                    |            |   |   |
| Percentage of Revenue                                                                  | 16.40%          | 22.30% | 14.30% |
| DCP Midstream, LP                                                                      |            |   |   |
| **Concentration Risk [Line Items]**                                                    |            |   |   |
| Percentage of Revenue                                                                  | 19.60%          | 20.20% | 13.20% |
| Aka Energy Group. LLC [Member]                                                         |            |   |   |
| **Concentration Risk [Line Items]**                                                    |            |   |   |
| Percentage of Revenue                                                                  | 0.00%           | 13.40% | 0.00% |
| Concord Energy                                                                         |            |   |   |
| **Concentration Risk [Line Items]**                                                    |            |   |   |
| Percentage of Revenue                                                                  | 0.00%           | 13.40% | 23.20% |
| Bridger Energy, LLC [Member]                                                           |            |   |   |
| **Concentration Risk [Line Items]**                                                    |            |   |   |
| Percentage of Revenue                                                                  | 0.00%           | 11.50% | 0.00% |
| Shell Trading Company                                                                  |            |   |   |
| **Concentration Risk [Line Items]**                                                    |            |   |   |
| Percentage of Revenue                                                                  | 0.00%           | 0.00% | 13.80% |

| 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.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.
+ References
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| X                                                                                                                                                               |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| X                                                                                                                                                     |
|-------------------------------------------------------------------------------------------------------------------------------------------------------|
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| X                                                                                                                                                         |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------|
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| X                                                                                                                                                    |
|------------------------------------------------------------------------------------------------------------------------------------------------------|
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| X                                                                                                                                                       |
|---------------------------------------------------------------------------------------------------------------------------------------------------------|
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| X                                                                                                                                                          |
|------------------------------------------------------------------------------------------------------------------------------------------------------------|
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