UNCONSOLIDATED AFFILIATES (Tables)

12 Months Ended

Dec. 31, 2019

Schedule of Equity Method Investments [Line Items]

Investments in Unconsolidated Affiliates - The following table sets forth our investments in unconsolidated affiliates for the periods indicated:



	Net Ownership Interest	December 31, 2019		December 31, 2018
		(Thousands of dollars)
Northern Border Pipeline	50%	$	307,209	$	381,623
Overland Pass Pipeline	50%	417,473		429,295
Roadrunner	50%	80,816		93,857
Other	Various	56,346		64,375
Investments in unconsolidated affiliates (a)		$	861,844	$	969,150

(a) - Equity-method goodwill (Note A) was $38.8 million at December 31, 2019 and 2018.

Equity In Net Earnings From Investments

Schedule of Equity Method Investments [Line Items]

Schedule of Equity Method Investments

Equity in Net Earnings from Investments and Impairments - The following table sets forth our equity in net earnings from investments for the periods indicated:



	Years Ended December 31,
	2019			2018		2017
	(Thousands of dollars)
Northern Border Pipeline	$	68,871		$	67,854	$	68,153
Overland Pass Pipeline	63,698			65,887		60,067
Roadrunner	26,839			22,993		19,150
Other	(4,867		)	1,649		11,908
Equity in net earnings from investments	$	154,541		$	158,383	$	159,278
Impairment of equity investments	$	—		$	—	$	(4,270	)

Unconsolidated Affiliates Financial Information

Schedule of Equity Method Investments [Line Items]

Schedule of Equity Method Investments

Unconsolidated Affiliates Financial Information - The following tables set forth summarized combined financial information of our unconsolidated affiliates for the periods indicated:



	December 31, 2019			December 31, 2018
	(Thousands of dollars)
Balance Sheet
Current assets	$	149,564		$	158,723
Property, plant and equipment, net	$	2,314,631		$	2,413,662
Other noncurrent assets	$	13,252		$	16,273
Current liabilities	$	88,142		$	83,057
Long-term debt	$	581,327		$	480,731
Other noncurrent liabilities	$	76,685		$	47,826
Accumulated other comprehensive income (loss)	$	(28,373	)	$	2,053
Owners’ equity	$	1,759,666		$	1,974,991



	Years Ended December 31,
	2019		2018		2017
	(Thousands of dollars)
Income Statement
Revenues	$	634,135	$	637,762	$	639,102
Operating expenses	$	291,210	$	276,373	$	277,121
Net income	$	315,274	$	337,694	$	347,692

Distributions paid to us (a)	$	257,644	$	197,285	$	196,114

(a) As determined by the Northern Border Pipeline Management Committee, we received an additional distribution of $50.0 million from Northern Border Pipeline during the year ended December 31, 2019.