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OPERATING REVENUES - Revenue Recognition (Details) - USD ($) $ in Thousands | 1 Months Ended | 2 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Oct. 31, 2019 | Dec. 31, 2019 | Mar. 31, 2020 | Mar. 31, 2019 | Dec. 31, 2019
Disaggregation of operating revenue |  |  |  |  |
Financial Designation, Predecessor and Successor [Fixed List] | Successor | Successor | Successor | Predecessor | Successor
Total oil, natural gas and natural gas liquids sales |  |  | $ 47,024 | $ 51,923 |
Other |  |  | 375 | (7) |
Total operating revenues |  |  | 47,399 | 51,916 |
Total oil, natural gas and natural gas liquids sales |  |  |  |  |
Disaggregation of operating revenue |  |  |  |  |
Total oil, natural gas and natural gas liquids sales |  |  | 47,024 | 51,923 |
Oil |  |  |  |  |
Disaggregation of operating revenue |  |  |  |  |
Total oil, natural gas and natural gas liquids sales |  |  | 41,917 | 45,517 |
Natural gas |  |  |  |  |
Disaggregation of operating revenue |  |  |  |  |
Total oil, natural gas and natural gas liquids sales |  |  | 354 | 1,461 |
Natural gas liquids |  |  |  |  |
Disaggregation of operating revenue |  |  |  |  |
Total oil, natural gas and natural gas liquids sales |  |  | 4,753 | $ 4,945 |
Accounts receivable |  |  |  |  |
Disaggregation of operating revenue |  |  |  |  |
Due from contracts with customers |  | $ 36,400 | $ 19,300 |  | $ 36,400

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