SUPPLEMENTAL CONDENSED CONSOLIDATING FINANCIAL INFORMATION (Tables)

6 Months Ended

Jun. 30, 2019

Condensed Financial Information Disclosure [Abstract]

Condensed Consolidating Statements of Income & Comprehensive Income

Condensed Consolidating Statements of Income and Comprehensive Income



	Three Months Ended June 30, 2019
(Unaudited)	Parent Issuer & Guarantor			Subsidiary Issuer & Guarantor			Guarantor Subsidiary			Combined Non-Guarantor Subsidiaries			Consolidating Entries			Total
	(Millions of dollars)
Revenues
Commodity sales	$	—		$	—		$	—		$	2,146.8		$	—		$	2,146.8
Services	—			—			—			311.3			(0.5		)	310.8
Total revenues	—			—			—			2,458.1			(0.5		)	2,457.6
Cost of sales and fuel (exclusive of items shown separately below)	—			—			—			1,625.8			—			1,625.8
Operating expenses	—			—			—			353.2			(0.5		)	352.7
(Gain) loss on sale of assets	—			—			2.6			0.4			—			3.0
Operating income	—			—			(2.6		)	478.7			—			476.1
Equity in net earnings from investments	466.0			468.9			471.5			27.9			(1,400.2		)	34.1
Other income (expense), net	8.5			76.4			76.4			9.7			(152.8		)	18.2
Interest expense, net	(66.9		)	(76.4		)	(76.4		)	(50.6		)	152.8			(117.5		)
Income before income taxes	407.6			468.9			468.9			465.7			(1,400.2		)	410.9
Income taxes	(95.6		)	—			—			(3.3		)	—			(98.9		)
Net income	312.0			468.9			468.9			462.4			(1,400.2		)	312.0
Less: Preferred stock dividends	0.3			—			—			—			—			0.3
Net income available to common shareholders	$	311.7		$	468.9		$	468.9		$	462.4		$	(1,400.2	)	$	311.7

Net income	$	312.0		$	468.9		$	468.9		$	462.4		$	(1,400.2	)	$	312.0
Other comprehensive income (loss), net of tax	(80.6		)	18.0			13.4			9.1			(26.8		)	(66.9		)
Comprehensive income	$	231.4		$	486.9		$	482.3		$	471.5		$	(1,427.0	)	$	245.1



	Three Months Ended June 30, 2018
(Unaudited)	Parent Issuer & Guarantor			Subsidiary Issuer & Guarantor			Guarantor Subsidiary			Combined Non-Guarantor Subsidiaries			Consolidating Entries			Total
	(Millions of dollars)
Revenues
Commodity sales	$	—		$	—		$	—		$	2,675.3		$	—		$	2,675.3
Services	—			—			—			285.8			(0.5		)	285.3
Total revenues	—			—			—			2,961.1			(0.5		)	2,960.6
Cost of sales and fuel (exclusive of items shown separately below)	—			—			—			2,175.8			—			2,175.8
Operating expenses	2.0			—			—			335.0			(0.5		)	336.5
Gain on sale of assets	—			—			—			(0.1		)	—			(0.1		)
Operating income	(2.0		)	—			—			450.4			—			448.4
Equity in net earnings from investments	400.8			403.2			403.2			27.5			(1,198.1		)	36.6
Other income (expense), net	6.6			77.5			77.5			(8.4		)	(155.0		)	(1.8		)
Interest expense, net	(40.3		)	(77.5		)	(77.5		)	(73.2		)	155.0			(113.5		)
Income before income taxes	365.1			403.2			403.2			396.3			(1,198.1		)	369.7
Income taxes	(84.0		)	—			—			(3.5		)	—			(87.5		)
Net income	281.1			403.2			403.2			392.8			(1,198.1		)	282.2
Less: Net income attributable to noncontrolling interests	—			—			—			1.1			—			1.1
Net income attributable to ONEOK	281.1			403.2			403.2			391.7			(1,198.1		)	281.1
Less: Preferred stock dividends	0.3			—			—			—			—			0.3
Net income available to common shareholders	$	280.8		$	403.2		$	403.2		$	391.7		$	(1,198.1	)	$	280.8

Net income	$	281.1		$	403.2		$	403.2		$	392.8		$	(1,198.1	)	$	282.2
Other comprehensive income (loss), net of tax	19.7			(30.6		)	(35.0		)	(27.9		)	69.9			(3.9		)
Comprehensive income	300.8			372.6			368.2			364.9			(1,128.2		)	278.3
Less: Comprehensive income attributable to noncontrolling interest	—			—			—			1.1			—			1.1
Comprehensive income attributable to ONEOK	$	300.8		$	372.6		$	368.2		$	363.8		$	(1,128.2	)	$	277.2



	Six Months Ended June 30, 2019
(Unaudited)	Parent Issuer & Guarantor			Subsidiary Issuer & Guarantor			Guarantor Subsidiary			Combined Non-Guarantor Subsidiaries			Consolidating Entries			Total
	(Millions of dollars)
Revenues
Commodity sales	$	—		$	—		$	—		$	4,619.8		$	—		$	4,619.8
Services	—			—			—			618.7			(1.0		)	617.7
Total revenues	—			—			—			5,238.5			(1.0		)	5,237.5
Cost of sales and fuel (exclusive of items shown separately below)	—			—			—			3,582.2			—			3,582.2
Operating expenses	—			—			—			708.5			(1.0		)	707.5
(Gain) loss on sale of assets	—			—			2.6			0.3			—			2.9
Operating income	—			—			(2.6		)	947.5			—			944.9
Equity in net earnings from investments	922.7			929.5			932.1			58.0			(2,764.7		)	77.6
Other income (expense), net	15.3			157.4			157.4			21.2			(314.8		)	36.5
Interest expense, net	(119.7		)	(157.4		)	(157.4		)	(113.2		)	314.8			(232.9		)
Income before income taxes	818.3			929.5			929.5			913.5			(2,764.7		)	826.1
Income taxes	(169.1		)	—			—			(7.8		)	—			(176.9		)
Net income	649.2			929.5			929.5			905.7			(2,764.7		)	649.2
Less: Preferred stock dividends	0.6			—			—			—			—			0.6
Net income available to common shareholders	$	648.6		$	929.5		$	929.5		$	905.7		$	(2,764.7	)	$	648.6

Net income	$	649.2		$	929.5		$	929.5		$	905.7		$	(2,764.7	)	$	649.2
Other comprehensive income (loss), net of tax	(131.6		)	(21.4		)	(30.4		)	(25.6		)	60.8			(148.2		)
Comprehensive income	$	517.6		$	908.1		$	899.1		$	880.1		$	(2,703.9	)	$	501.0



	Six Months Ended June 30, 2018
(Unaudited)	Parent Issuer & Guarantor			Subsidiary Issuer & Guarantor			Guarantor Subsidiary			Combined Non-Guarantor Subsidiaries			Consolidating Entries			Total
	(Millions of dollars)
Revenues
Commodity sales	$	—		$	—		$	—		$	5,495.3		$	—		$	5,495.3
Services	—			—			—			568.3			(1.0		)	567.3
Total revenues	—			—			—			6,063.6			(1.0		)	6,062.6
Cost of sales and fuel (exclusive of items shown separately below)	—			—			—			4,543.8			—			4,543.8
Operating expenses	1.3			—			—			650.6			(1.0		)	650.9
Gain on sale of assets	—			—			—			(0.2		)	—			(0.2		)
Operating income	(1.3		)	—			—			869.4			—			868.1
Equity in net earnings from investments	769.3			774.1			774.1			56.1			(2,296.8		)	76.8
Other income (expense), net	13.8			154.6			154.6			(18.0		)	(309.2		)	(4.2		)
Interest expense, net	(80.1		)	(154.6		)	(154.6		)	(149.1		)	309.2			(229.2		)
Income before income taxes	701.7			774.1			774.1			758.4			(2,296.8		)	711.5
Income taxes	(156.1		)	—			—			(7.2		)	—			(163.3		)
Net income	545.6			774.1			774.1			751.2			(2,296.8		)	548.2
Less: Net income attributable to noncontrolling interests	—			—			—			2.6			—			2.6
Net income attributable to ONEOK	545.6			774.1			774.1			748.6			(2,296.8		)	545.6
Less: Preferred stock dividends	0.6			—			—			—			—			0.6
Net income available to common shareholders	$	545.0		$	774.1		$	774.1		$	748.6		$	(2,296.8	)	$	545.0

Net income	$	545.6		$	774.1		$	774.1		$	751.2		$	(2,296.8	)	$	548.2
Other comprehensive income (loss), net of tax	42.2			7.7			1.2			(0.7		)	(2.4		)	48.0
Comprehensive income	587.8			781.8			775.3			750.5			(2,299.2		)	596.2
Less: Comprehensive income attributable to noncontrolling interest	—			—			—			2.6			—			2.6
Comprehensive income attributable to ONEOK	$	587.8		$	781.8		$	775.3		$	747.9		$	(2,299.2	)	$	593.6

Condensed Consolidating Balance Sheets



	June 30, 2019
(Unaudited)	Parent Issuer & Guarantor		Subsidiary Issuer & Guarantor		Guarantor Subsidiary		Combined Non-Guarantor Subsidiaries		Consolidating Entries			Total
Assets	(Millions of dollars)
Current assets
Cash and cash equivalents	$	273.4	$	—	$	—	$	—	$	—		$	273.4
Accounts receivable, net	—		—		—		669.3		—			669.3
Natural gas and NGLs in storage	—		—		—		185.0		—			185.0
Other current assets	13.4		—		—		260.1		—			273.5
Total current assets	286.8		—		—		1,114.4		—			1,401.2
Property, plant and equipment
Property, plant and equipment	153.4		—		—		19,653.4		—			19,806.8
Accumulated depreciation and amortization	95.7		—		—		3,374.9		—			3,470.6
Net property, plant and equipment	57.7		—		—		16,278.5		—			16,336.2
Investments and other assets
Investments	6,403.0		3,781.2		10,523.2		774.0		(20,600.3		)	881.1
Intercompany notes receivable	7,010.1		7,197.8		455.8		—		(14,663.7		)	—
Other assets	132.3		—		—		1,001.7		(0.9		)	1,133.1
Total investments and other assets	13,545.4		10,979.0		10,979.0		1,775.7		(35,264.9		)	2,014.2
Total assets	$	13,889.9	$	10,979.0	$	10,979.0	$	19,168.6	$	(35,264.9	)	$	19,751.6
Liabilities and equity
Current liabilities
Current maturities of long-term debt	$	—	$	300.0	$	—	$	7.7	$	—		$	307.7
Accounts payable	7.4		—		—		900.0		—			907.4
Other current liabilities	205.0		66.6		—		250.7		—			522.3
Total current liabilities	212.4		366.6		—		1,158.4		—			1,737.4

Intercompany debt	—		—		7,197.8		7,465.9		(14,663.7		)	—

Long-term debt, excluding current maturities	6,693.5		4,043.2		—		17.4		—			10,754.1

Deferred credits and other liabilities
Deferred income taxes	231.1		—		—		117.6		(0.9		)	347.8
Other deferred credits	404.8		—		—		159.4		—			564.2
Total deferred credits and other liabilities	635.9		—		—		277.0		(0.9		)	912.0

Commitments and contingencies

Equity	6,348.1		6,569.2		3,781.2		10,249.9		(20,600.3		)	6,348.1
Total liabilities and equity	$	13,889.9	$	10,979.0	$	10,979.0	$	19,168.6	$	(35,264.9	)	$	19,751.6



	December 31, 2018
(Unaudited)	Parent Issuer & Guarantor		Subsidiary Issuer & Guarantor		Guarantor Subsidiary		Combined Non-Guarantor Subsidiaries		Consolidating Entries			Total
Assets	(Millions of dollars)
Current assets
Cash and cash equivalents	$	12.0	$	—	$	—	$	—	$	—		$	12.0
Accounts receivable, net	—		—		—		819.0		—			819.0
Materials and supplies	—		—		—		141.2		—			141.2
Natural gas and NGLs in storage	—		—		—		296.7		—			296.7
Other current assets	29.1		—		—		100.6		—			129.7
Total current assets	41.1		—		—		1,357.5		—			1,398.6
Property, plant and equipment
Property, plant and equipment	145.5		—		—		17,885.5		—			18,031.0
Accumulated depreciation and amortization	92.0		—		—		3,172.3		—			3,264.3
Net property, plant and equipment	53.5		—		—		14,713.2		—			14,766.7
Investments and other assets
Investments	6,153.5		3,548.1		9,721.6		791.1		(19,245.1		)	969.2
Intercompany notes receivable	5,308.6		7,701.5		1,528.0		—		(14,538.1		)	—
Other assets	115.9		—		—		982.3		(1.0		)	1,097.2
Total investments and other assets	11,578.0		11,249.6		11,249.6		1,773.4		(33,784.2		)	2,066.4
Total assets	$	11,672.6	$	11,249.6	$	11,249.6	$	17,844.1	$	(33,784.2	)	$	18,231.7
Liabilities and equity
Current liabilities
Current maturities of long-term debt	$	—	$	500.0	$	—	$	7.7	$	—		$	507.7
Accounts payable	31.3		—		—		1,085.0		—			1,116.3
Other current liabilities	123.2		81.0		—		280.2		—			484.4
Total current liabilities	154.5		581.0		—		1,372.9		—			2,108.4

Intercompany debt	—		—		7,701.5		6,836.6		(14,538.1		)	—

Long-term debt, excluding current maturities	4,510.7		4,341.4		—		21.2		—			8,873.3

Deferred credits and other liabilities
Deferred income taxes	112.3		—		—		108.4		(1.0		)	219.7
Other deferred credits	315.6		—		—		135.2		—			450.8
Total deferred credits and other liabilities	427.9		—		—		243.6		(1.0		)	670.5

Commitments and contingencies

Equity	6,579.5		6,327.2		3,548.1		9,369.8		(19,245.1		)	6,579.5
Total liabilities and equity	$	11,672.6	$	11,249.6	$	11,249.6	$	17,844.1	$	(33,784.2	)	$	18,231.7

Condensed Consolidating Statements of Cash Flows



	Six Months Ended June 30, 2019
(Unaudited)	Parent Issuer & Guarantor			Subsidiary Issuer & Guarantor			Guarantor Subsidiary				Combined Non-Guarantor Subsidiaries			Consolidating Entries			Total
	(Millions of dollars)
Operating activities
Cash provided by operating activities	$	536.0		$	660.6		$	34.5			$	1,068.9		$	(1,332.0	)	$	968.0
Investing activities
Capital expenditures	(10.3		)	—			—				(1,709.9		)	—			(1,720.2		)
Contributions to unconsolidated affiliates	—			—			—				(1.4		)	—			(1.4		)
Other investing activities	—			—			68.2				21.3			—			89.5
Cash used in investing activities	(10.3		)	—			68.2				(1,690.0		)	—			(1,632.1		)
Financing activities
Dividends paid	(711.5		)	(666.0		)	(666.0		)		—			1,332.0			(711.5		)
Intercompany borrowings (advances), net	(1,694.5		)	505.4			563.3				625.8			—			—
Issuance of long-term debt, net of discounts	2,192.8			—			—				—			—			2,192.8
Repayment of long-term debt	—			(500.0		)	—				(3.8		)	—			(503.8		)
Issuance of common stock	14.1			—			—				—			—			14.1
Other, net	(65.2		)	—			—				(0.9		)	—			(66.1		)
Cash provided by financing activities	(264.3		)	(660.6		)	(102.7		)	—	621.1			1,332.0			925.5
Change in cash and cash equivalents	261.4			—			—				—			—			261.4
Cash and cash equivalents at beginning of period	12.0			—			—				—			—			12.0
Cash and cash equivalents at end of period	$	273.4		$	—		$	—			$	—		$	—		$	273.4



	Six Months Ended June 30, 2018
(Unaudited)	Parent Issuer & Guarantor			Subsidiary Issuer & Guarantor			Guarantor Subsidiary			Combined Non-Guarantor Subsidiaries			Consolidating Entries			Total
	(Millions of dollars)
Operating activities
Cash provided by operating activities	$	669.2		$	673.9		$	32.4		$	959.5		$	(1,332.0	)	$	1,003.0
Investing activities
Capital expenditures	(10.1		)	—			—			(605.3		)	—			(615.4		)
Contributions to unconsolidated affiliates	—			—			—			(0.3		)	—			(0.3		)
Other investing activities	—			—			6.4			7.9			—			14.3
Cash used in investing activities	(10.1		)	—			6.4			(597.7		)	—			(601.4		)
Financing activities
Dividends paid	(643.5		)	(666.0		)	(666.0		)	—			1,332.0			(643.5		)
Distributions to noncontrolling interests	—			—			—			(3.0		)	—			(3.0		)
Intercompany borrowings (advances), net	(748.0		)	492.1			627.2			(371.3		)	—			—
Borrowing (repayment) of short-term borrowings, net	(458.7		)	—			—			—			—			(458.7		)
Repayment of long-term debt	—			(500.0		)	—			(3.8		)	—			(503.8		)
Issuance of common stock	1,186.7			—			—			—			—			1,186.7
Other, net	(17.5		)	—			—			16.3			—			(1.2		)
Cash used in financing activities	(681.0		)	(673.9		)	(38.8		)	(361.8		)	1,332.0			(423.5		)
Change in cash and cash equivalents	(21.9		)	—			—			—			—			(21.9		)
Cash and cash equivalents at beginning of period	37.2			—			—			—			—			37.2
Cash and cash equivalents at end of period	$	15.3		$	—		$	—		$	—		$	—		$	15.3