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INVESTMENT | 6 Months Ended
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Jun. 30, 2021
INVESTMENT |
INVESTMENT | 9.INVESTMENT ​ AllDale III ​ As discussed in Note 8 – Variable Interest Entities, we account for our ownership interest in the income or loss of AllDale III as an equity method investment. We record equity income or loss based on AllDale III's distribution structure. The changes in our equity method investment in AllDale III for each of the periods presented were as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended | ​ | Six Months Ended | ​
​ | ​ | June 30, | ​ | June 30, | ​
​ |  | 2021 |  | 2020 |  | 2021 |  | 2020 | ​
​ | ​ | (in thousands) | ​
Beginning balance | ​ | $ | 26,907 | ​ | $ | 28,114 | ​ | $ | 27,268 | ​ | $ | 28,529 | ​
Equity method investment income | ​ | ​ | 341 | ​ | ​ | 137 | ​ | ​ | 403 | ​ | ​ | 588 | ​
Distributions received | ​ | ​ | (974) | ​ | ​ | (546) | ​ | ​ | (1,397) | ​ | ​ | (1,139) | ​
Other | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (273) | ​
Ending balance | ​ | $ | 26,274 | ​ | $ | 27,705 | ​ | $ | 26,274 | ​ | $ | 27,705 | ​
​

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