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UNCONSOLIDATED AFFILIATES (Tables)

6 Months Ended

Jun. 30, 2018

Equity In Net Earnings From Investments

Schedule of Equity Method Investments [Line Items]

Schedule of Equity Method Investments [Table Text Block]

The following table sets forth our equity in net earnings from investments for the periods indicated:

	Three Months Ended								Six Months Ended
	June 30,								June 30,
	2018				2017				2018				2017
	(Thousands of dollars)
Northern Border Pipeline	$	15,240			$	15,622			$	32,377			$	34,439
Overland Pass Pipeline Company	16,246				14,884				32,633				28,450
Roadrunner Gas Transmission	5,542				4,889				10,500				9,294
Other	(458		)		3,968				1,247				6,744
Equity in net earnings from investments	$	36,570			$	39,363			$	76,757			$	78,927

Unconsolidated Affiliates Financial Information

Schedule of Equity Method Investments [Line Items]

Schedule of Equity Method Investments [Table Text Block]

The following table sets forth summarized combined financial information of our unconsolidated affiliates for the periods indicated:

	Three Months Ended								Six Months Ended
	June 30,								June 30,
	2018				2017				2018				2017
	(Thousands of dollars)
Income Statement
Operating revenues	$	151,771			$	157,603			$	310,679			$	311,883
Operating expenses	$	68,120			$	69,465			$	136,521			$	136,401
Net income	$	77,913			$	92,072			$	162,393			$	173,203
Distributions paid to us	$	48,424			$	49,760			$	98,240			$	96,680

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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://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571

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- Definition

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+ References

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