v3.20.4
GOODWILL (Tables)
12 Months Ended
Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill [Table Text Block]
The balances of and changes in the carrying amount of goodwill by segment were as follows:
PipelineStorageTotal
 (Thousands of Dollars)
Balances as of January 1, 2019 and 2020$704,231 $301,622 $1,005,853 
Activity for the year ended December 31, 2020:
Goodwill impairment loss on crude oil pipelines(225,000)— (225,000)
Texas City Sale— (14,437)(14,437)
Balances as of December 31, 2020:
Goodwill704,231 287,185 991,416 
Accumulated impairment loss(225,000)— (225,000)
Net goodwill$479,231 $287,185 $766,416