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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
9 Months Ended
Sep. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill by Segment
The following table sets forth our goodwill, by segment, for the periods indicated:
September 30,
2020
December 31,
2019
 
(Thousands of dollars)
Natural Gas Gathering and Processing$ $153,404 
Natural Gas Liquids371,217 371,217 
Natural Gas Pipelines156,375 156,375 
Total goodwill$527,592 $680,996