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Equity Method Investment (Tables) | 12 Months Ended
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Dec. 31, 2020
Equity Method Investments and Joint Ventures [Abstract] |
Marketable Securities | PNMR presents its share of net earnings from NMRD in other income on the Consolidated Statements of Earnings. Summarized financial information for NMRD is as follows:
| December 31,
| 2020 |  | 2019 |  | 2018
| (In thousands)
Operating revenues | $ | 10,366 |  |  | $ | 3,662 |  |  | $ | 3,147 |
Operating expenses | 7,476 |  |  | 2,971 |  |  | 2,136 |
Net earnings | $ | 2,890 |  |  | $ | 691 |  |  | $ | 1,011 |
| Financial Position
| December 31,
| 2020 |  | 2019
| (In thousands)
Current assets | $ | 8,046 |  |  | $ | 7,187 |
Net property, plant, and equipment | 172,585 |  |  | 132,772 |
Non-current assets | 1,900 |  |  | — |
Total assets | 182,531 |  |  | 139,959 |
Current liabilities | 841 |  |  | 9,640 |
Non-current liabilities | $ | 380 |  |  | $ | — |
Owners’ equity | $ | 181,310 |  |  | $ | 130,319 |

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- Definition Tabular disclosure of marketable securities. This may consist of investments in certain debt and equity securities, short-term investments and other assets. + References No definition available. + Details
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