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Revenue Recognition (Tables) | 9 Months Ended
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Sep. 30, 2020
Revenue from Contract with Customer [Abstract] |
Schedule of Disaggregated Revenue | The following table presents our disaggregated revenue by major source and geographic area for the three and nine months ended September 30, 2020 and 2019.
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2020 |  |  | 2019 |  |  | 2020 |  |  | 2019 |
|  | (in thousands) |
Revenue: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
North Dakota |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Oil |  | $ | 270 |  |  | $ | 564 |  |  | $ | 901 |  |  | $ | 1,723 |
Natural gas and liquids (1) |  |  | 34 |  |  |  | 16 |  |  |  | 66 |  |  |  | 109 |
Total |  | $ | 304 |  |  | $ | 580 |  |  | $ | 967 |  |  | $ | 1,832 |
Texas |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Oil |  | $ | 92 |  |  | $ | 1,007 |  |  | $ | 517 |  |  | $ | 3,023 |
Natural gas and liquids |  |  | 5 |  |  |  | 46 |  |  |  | 29 |  |  |  | 211 |
Total |  | $ | 97 |  |  | $ | 1,053 |  |  | $ | 546 |  |  | $ | 3,234 |
Total revenue |  | $ | 401 |  |  | $ | 1,633 |  |  | $ | 1,513 |  |  | $ | 5,066 |
Schedule of Concentration Risk by Operator | During the nine-month periods ended September 30, 2020 and 2019, the joint interest operators that accounted for 10% or more of the Company’s total oil and natural gas revenue for at least one of the periods presented are as follows:
Operator |  | 2020 |  |  | 2019 |
CML Exploration LLC |  |  | 32 | % |  |  | 54 | %
Zavanna LLC |  |  | 47 | % |  |  | 29 | %

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