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UNCONSOLIDATED AFFILIATES (Tables) | 12 Months Ended
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Dec. 31, 2020
Schedule of Equity Method Investments [Line Items] |
Schedule of Equity Method Investments | The following table sets forth our investments in unconsolidated affiliates for the periods indicated:
|  | Net Ownership Interest |  | December 31, 2020 |  | December 31, 2019
|  |  |  | (Thousands of dollars)
Northern Border Pipeline |  | 50% |  | $ | 291,987 |  |  | $ | 307,209 |
Overland Pass Pipeline |  | 50% |  | 409,573 |  |  | 417,473 |
Roadrunner |  | 50% |  | 66,794 |  |  | 80,816 |
Other (a) |  | Various |  | 36,678 |  |  | 56,346 |
Investments in unconsolidated affiliates (b) |  | $ | 805,032 |  |  | $ | 861,844 |
(a) - Year ended December 31, 2020, includes the impact of noncash impairment charges of $37.7 million related to the equity investments discussed below, offset partially by an acquisition of additional equity interest for $20.0 million. (b) - Equity-method goodwill (Note A) was $16.5 million and $38.8 million at December 31, 2020 and 2019, respectively.
Equity In Net Earnings From Investments |
Schedule of Equity Method Investments [Line Items] |
Schedule of Equity Method Investments | The following table sets forth our equity in net earnings (loss) from investments for the periods indicated:
|  | Years Ended December 31,
|  | 2020 |  | 2019 |  | 2018
|  | (Thousands of dollars)
Northern Border Pipeline |  | $ | 75,409 |  |  | $ | 68,871 |  |  | $ | 67,854 |
Overland Pass Pipeline |  | 38,618 |  |  | 63,698 |  |  | 65,887 |
Roadrunner |  | 29,017 |  |  | 26,839 |  |  | 22,993 |
Other |  | 197 |  |  | (4,867) |  |  | 1,649 |
Equity in net earnings from investments |  | $ | 143,241 |  |  | $ | 154,541 |  |  | $ | 158,383 |
Impairment of equity investments |  | $ | (37,730) |  |  | $ | — |  |  | $ | — |

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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