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EQUITY INVESTMENTS (Tables) | 12 Months Ended
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Dec. 31, 2024
EQUITY INVESTMENTS |
Schedule of changes in equity method investments | We account for our ownership interest in the income or loss of AllDale III, Francis and NGP ET IV as equity method investments. We record equity income or loss based on the distribution structure of the investments. The changes in our equity method investments were as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31, | ​
​ |  | 2024 |  | 2023 |  | 2022 |
​ | ​ | (in thousands) | ​
Beginning balance | ​ | $ | 46,503 | ​ | $ | 49,371 | ​ | $ | 26,325 | ​
Contributions | ​ | ​ | 2,896 | ​ | ​ | 2,518 | ​ | ​ | 24,087 | ​
Equity method investment income (loss) | ​ | ​ | (4,961) | ​ | ​ | (1,468) | ​ | ​ | 5,634 | ​
Distributions received | ​ | ​ | (3,788) | ​ | ​ | (3,918) | ​ | ​ | (6,675) | ​
Change in our share of net assets | ​ | ​ | (5,118) | ​ | ​ | — | ​ | ​ | — | ​
Ending balance | ​ | $ | 35,532 | ​ | $ | 46,503 | ​ | $ | 49,371 | ​

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- Definition Tabular disclosure of equity method investments including, but not limited to, name of each investee or group of investments, percentage ownership, difference between recorded amount of an investment and the value of the underlying equity in the net assets, and summarized financial information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481687/323-10-50-3 + Details
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- References No definition available. + Details
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