| **PROPERTIES AND EQUIPMENT Impairment of Natural Gas and Crude Oil Properties (Details) - USD ($) $ in Thousands** | 3 Months Ended | 12 Months Ended |
|--------------------------------------------------------------------------------------------------------------------|----------------|-----------------|
||
| **Continuing Operations:**                                                                                         |           |            |   |   |   |   |   |   |   |   |   |
| Impairment of proved and unproved properties                                                                       |           |            |   |   |   |   |   |   | $ 154,608 | $ 161,604 | $ 49,631 |
| Amortization of Individually Insignificant Unproved Properties                                                     |           |            |   |   |   |   |   |   | 7,012 | 4,465 | 3,242 |
| Other                                                                                                              |           |            |   |   |   |   |   |   | 0 | 778 | 0 |
| Results of Operations, Impairment of Oil and Gas Properties                                                        | $ 413          | $ 154,031       | $ 4,404 | $ 2,772 | $ 161,914 | $ 1,962 | $ 2,019 | $ 952 | 161,620 | 166,847 | 52,873 |
| **Discontinued operations:**                                                                                       |           |            |   |   |   |   |   |   |   |   |   |
| Impairment of individually significant unproved properties from discontinued operations                            |           |            |   |   |   |   |   |   | 0 | 433 | 566 |
| Amortization of Individually Insignificant Unproved Properties, discontinued operations                            |           |            |   |   |   |   |   |   | 0 | 0 | 363 |
| Total discontinued operations                                                                                      |           |            |   |   |   |   |   |   | 0 | 433 | 929 |
| Total impairment of natural gas and crude oil properties                                                           |           |            |   |   |   |   |   |   | 161,620 | 167,280 | 53,802 |
| Capitalized Well Costs                                                                                             |           |            |   |   |   |   |   |   |   |   |   |
| **Continuing Operations:**                                                                                         |           |            |   |   |   |   |   |   |   |   |   |
| Impairment of proved and unproved properties                                                                       |           |            |   |   |   |   |   |   | 24,700 |   |   |
| Fair Value, excluding estimated salvage value                                                                      | $ 27,900       |            |   |   |   |   |   |   | 27,900 |   |   |
| Lease Acquisition Costs                                                                                            |           |            |   |   |   |   |   |   |   |   |   |
| **Continuing Operations:**                                                                                         |           |            |   |   |   |   |   |   |   |   |   |
| Impairment of proved and unproved properties                                                                       |           |            |   |   |   |   |   |   | 150,300 |   |   |
| Unproved Properties                                                                                                |           |            |   |   |   |   |   |   |   |   |   |
| **Continuing Operations:**                                                                                         |           |            |   |   |   |   |   |   |   |   |   |
| Impairment of proved and unproved properties                                                                       |           |            |   |   |   |   |   |   | $ 125,600 | 45,700 |   |
| Proved and unproved properties                                                                                     |           |            |   |   |   |   |   |   |   |   |   |
| **Continuing Operations:**                                                                                         |           |            |   |   |   |   |   |   |   |   |   |
| Impairment of proved and unproved properties                                                                       |           |            |   |   |   |   |   |   |   | 158,300 |   |
| Proved Properties                                                                                                  |           |            |   |   |   |   |   |   |   |   |   |
| **Continuing Operations:**                                                                                         |           |            |   |   |   |   |   |   |   |   |   |
| Impairment of proved and unproved properties                                                                       |           |            |   |   |   |   |   |   |   | $ 112,600 | $ 48,800 |

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| - Definition
Costs related to the impairment of discontinued crude oil and gas properties.
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| - Definition
Impairment of other properties
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| X                                                                                                                                                                                                                                                                       |
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| - Definition
Fair value of asset after deduction of liability.
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| - Definition
The adjustment to reduce the value of existing agreements that specify the lessee's rights to use the leased property. This expense is charged when the estimates of future profits generated by the leased property are reduced.
+ References
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|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The expense recorded to reduce the value of oil and gas assets consisting of proved properties and unproved properties as the estimate of future successful production from these properties is reduced.
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| - Definition
Costs related to the impairment of oil and gas properties.
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