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GOODWILL AND INTANGIBLE ASSETS (Tables) | 12 Months Ended
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Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract] |
Goodwill by Segment | The following table sets forth our goodwill, by segment, as of the dates indicated:
|  | December 31, 2022 |  | December 31, 2021
|  | (Thousands of dollars)
Natural Gas Liquids |  | $ | 371,217 |  |  | $ | 371,217 |
Natural Gas Pipelines |  | 156,375 |  |  | 156,375 |
Total goodwill |  | $ | 527,592 |  |  | $ | 527,592 |
Gross Carrying Amount and Accumulated Amortization of Intangible Assets | The following table reflects the gross carrying amount and accumulated amortization of intangible assets as of the dates presented:
|  | December 31, 2022 |  | December 31, 2021
|  | (Thousands of dollars)
Gross intangible assets |  | $ | 381,435 |  |  | $ | 381,435 |
Accumulated amortization |  | (156,160) |  |  | (145,732) |
Net intangible assets |  | $ | 225,275 |  |  | $ | 235,703 |

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