CONDENSED CONSOLIDATING FINANCIAL INFORMATION (Tables)

12 Months Ended

Dec. 31, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Condensed Balance Sheet

Balance sheets as of December 31, 2015 and 2014 follow.

	December 31, 2015
	SMLP		Co-Issuers		Guarantor Subsidiaries		Non-Guarantor Subsidiaries		Consolidating adjustments			Total
	(In thousands)
Assets
Cash and cash equivalents	$	73	$	12,407	$	6,930	$	2,383	$	—		$	21,793
Accounts receivable	—		—		84,021		5,560		—			89,581
Due from affiliate	3,168		151,443		207,651		—		(362,262		)	—
Other current assets	540		—		2,672		361		—			3,573
Total current assets	3,781		163,850		301,274		8,304		(362,262		)	114,947
Property, plant and equipment, net	1,178		—		1,462,623		348,982		—			1,812,783
Intangible assets, net	—		—		438,093		23,217		—			461,310
Goodwill	—		—		16,211		—		—			16,211
Investment in equity method investees	—		—		—		751,168		—			751,168
Other noncurrent assets	3,480		4,611		162		—		—			8,253
Investment in subsidiaries	2,438,395		3,222,187		—		—		(5,660,582		)	—
Total assets	$	2,446,834	$	3,390,648	$	2,218,363	$	1,131,671	$	(6,022,844	)	$	3,164,672
Liabilities and Partners' Capital
Trade accounts payable	$	482	$	—	$	18,489	$	21,837	$	—		$	40,808
Due to affiliate	360,243		—		—		3,168		(362,262		)	1,149
Deferred revenue	—		—		677		—		—			677
Ad valorem taxes payable	9		—		9,881		381		—			10,271
Accrued interest	—		17,483		—		—		—			17,483
Accrued environmental remediation	—		—		—		7,900		—			7,900
Other current liabilities	4,558		—		7,405		1,334		—			13,297
Total current liabilities	365,292		17,483		36,452		34,620		(362,262		)	91,585
Long-term debt	332,500		934,770		—		—		—			1,267,270
Deferred revenue	—		—		45,486		—		—			45,486
Noncurrent accrued environmental remediation	—		—		—		5,764		—			5,764
Other noncurrent liabilities	1,743		—		5,503		22		—			7,268
Total liabilities	699,535		952,253		87,441		40,406		(362,262		)	1,417,373
Total partners' capital	1,747,299		2,438,395		2,130,922		1,091,265		(5,660,582		)	1,747,299
Total liabilities and partners' capital	$	2,446,834	$	3,390,648	$	2,218,363	$	1,131,671	$	(6,022,844	)	$	3,164,672

	December 31, 2014
	SMLP		Co-Issuers		Guarantor Subsidiaries		Non-Guarantor Subsidiaries		Consolidating adjustments			Total
	(In thousands)
Assets
Cash and cash equivalents	$	7,531	$	11,621	$	7,353	$	1,306	$	—		$	27,811
Accounts receivable	—		—		89,201		3,707		—			92,908
Insurance receivable	—		—		—		25,000		—			25,000
Due from affiliate	764		63,239		97,615		—		(161,618		)	—
Other current assets	907		—		2,610		83		—			3,600
Total current assets	9,202		74,860		196,779		30,096		(161,618		)	149,319
Property, plant and equipment, net	1,351		—		1,412,998		208,291		—			1,622,640
Intangible assets, net	—		—		477,734		11,548		—			489,282
Goodwill	—		—		265,062		—		—			265,062
Investment in equity method investees	—		—		—		706,172		—			706,172
Other noncurrent assets	3,771		6,027		189		—		—			9,987
Investment in subsidiaries	2,419,433		3,154,626		—		—		(5,574,059		)	—
Total assets	$	2,433,757	$	3,235,513	$	2,352,762	$	956,107	$	(5,735,677	)	$	3,242,462
Liabilities and Partners' Capital
Trade accounts payable	$	1,144	$	—	$	23,711	$	13,536	$	—		$	38,391
Due to affiliate	163,565		—		—		764		(161,618		)	2,711
Deferred revenue	—		—		2,377		—		—			2,377
Ad valorem taxes payable	23		—		9,095		61		—			9,179
Accrued interest	—		18,858		—		—		—			18,858
Accrued environmental remediation	—		—		—		25,000		—			25,000
Other current liabilities	1,622		15		12,552		1,118		—			15,307
Total current liabilities	166,354		18,873		47,735		40,479		(161,618		)	111,823
Long-term debt	435,000		797,207		—		—		—			1,232,207
Deferred revenue	—		—		55,239		—		—			55,239
Noncurrent accrued environmental remediation	—		—		—		5,000		—			5,000
Other noncurrent liabilities	1,725		—		5,790		—		—			7,515
Total liabilities	603,079		816,080		108,764		45,479		(161,618		)	1,411,784
Total partners' capital	1,830,678		2,419,433		2,243,998		910,628		(5,574,059		)	1,830,678
Total liabilities and partners' capital	$	2,433,757	$	3,235,513	$	2,352,762	$	956,107	$	(5,735,677	)	$	3,242,462

Condensed Statement of Operations

Statements of operations for the years ended December 31, 2015, 2014 and 2013 follow.

	Year ended December 31, 2015
	SMLP			Co-Issuers			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating adjustments		Total
	(In thousands)
Revenues:
Gathering services and related fees	$	—		$	—		$	310,830		$	26,989		$	—	$	337,819
Natural gas, NGLs and condensate sales	—			—			42,079			—			—		42,079
Other revenues	—			—			18,411			2,248			—		20,659
Total revenues	—			—			371,320			29,237			—		400,557
Costs and expenses:
Cost of natural gas and NGLs	—			—			31,398			—			—		31,398
Operation and maintenance	—			—			87,286			7,700			—		94,986
General and administrative	—			—			37,926			7,182			—		45,108
Transaction costs	1,342			—			—			—			—		1,342
Depreciation and amortization	603			—			95,586			8,928			—		105,117
Environmental remediation	—			—			—			21,800			—		21,800
Gain on asset sales, net	—			—			(172		)	—			—		(172		)
Long-lived asset impairment	—			—			9,305			—			—		9,305
Goodwill impairment	—			—			248,851			—			—		248,851
Total costs and expenses	1,945			—			510,180			45,610			—		557,735
Other income	2			—			—			—			—		2
Interest expense	(10,494		)	(48,598		)	—			—			—		(59,092		)
Loss before income taxes	(12,437		)	(48,598		)	(138,860		)	(16,373		)	—		(216,268		)
Income tax benefit	603			—			—			—			—		603
Loss from equity method investees	—			—			—			(6,563		)	—		(6,563		)
Equity in earnings of consolidated subsidiaries	(210,394		)	(161,796		)	—			—			372,190		—
Net loss	$	(222,228	)	$	(210,394	)	$	(138,860	)	$	(22,936	)	$	372,190	$	(222,228	)

	Year ended December 31, 2014
	SMLP			Co-Issuers			Guarantor Subsidiaries		Non-Guarantor Subsidiaries			Consolidating adjustments		Total
	(In thousands)
Revenues:
Gathering services and related fees	$	—		$	—		$	255,211	$	12,267		$	—	$	267,478
Natural gas, NGLs and condensate sales	—			—			97,094		—			—		97,094
Other revenues	—			—			20,398		2,199			—		22,597
Total revenues	—			—			372,703		14,466			—		387,169
Costs and expenses:
Cost of natural gas and NGLs	—			—			72,415		—			—		72,415
Operation and maintenance	—			—			88,927		5,942			—		94,869
General and administrative	—			—			40,447		2,834			—		43,281
Transaction costs	2,985			—			—		—			—		2,985
Depreciation and amortization	588			—			86,762		3,528			—		90,878
Environmental remediation	—			—			—		5,000			—		5,000
Loss on asset sales, net	—			—			442		—			—		442
Long-lived asset impairment	—			—			5,505		—			—		5,505
Goodwill impairment	—			—			54,199		—			—		54,199
Total costs and expenses	3,573			—			348,697		17,304			—		369,574
Other income	—			—			1,189		—			—		1,189
Interest expense	(8,417		)	(40,169		)	—		—			—		(48,586		)
(Loss) income before income taxes	(11,990		)	(40,169		)	25,195		(2,838		)	—		(29,802		)
Income tax (expense) benefit	(1,680		)	—			826		—			—		(854		)
Loss from equity method investees	—			—			—		(16,712		)	—		(16,712		)
Equity in earnings of consolidated subsidiaries	(33,698		)	6,471			—		—			27,227		—
Net (loss) income	$	(47,368	)	$	(33,698	)	$	26,021	$	(19,550	)	$	27,227	$	(47,368	)

	Year ended December 31, 2013
	SMLP			Co-Issuers			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating adjustments			Total
	(In thousands)
Revenues:
Gathering services and related fees	$	—		$	—		$	213,979		$	2,373		$	—		$	216,352
Natural gas, NGLs and condensate sales	—			—			88,185			—			—			88,185
Other revenues	—			—			21,522			101			—			21,623
Total revenues	—			—			323,686			2,474			—			326,160
Costs and expenses:
Cost of natural gas and NGLs	—			—			68,037			—			—			68,037
Operation and maintenance	—			—			77,122			1,053			—			78,175
General and administrative	—			—			33,970			2,746			—			36,716
Transaction costs	2,841			—			—			—						2,841
Depreciation and amortization	454			—			70,122			656			—			71,232
Loss on asset sales, net	—			—			113			—			—			113
Total costs and expenses	3,295			—			249,364			4,455			—			257,114
Other income	5			—			—			—			—			5
Interest expense	(2,141		)	(19,173		)	—			—			—			(21,314		)
(Loss) income before income taxes	(5,431		)	(19,173		)	74,322			(1,981		)	—			47,737
Income tax expense	—			—			(729		)	—			—			(729		)
Equity in earnings of consolidated subsidiaries	52,439			71,612			—			—			(124,051		)	—
Net income (loss)	$	47,008		$	52,439		$	73,593		$	(1,981	)	$	(124,051	)	$	47,008

Condensed Cash Flow Statement

Statements of cash flows for the years ended December 31, 2015, 2014 and 2013 follow.

	Year ended December 31, 2015
	SMLP			Co-Issuers			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating adjustments		Total
	(In thousands)
Cash flows from operating activities:
Net cash provided by (used in) operating activities	$	409		$	(46,716	)	$	202,324		$	35,358		$	—	$	191,375
Cash flows from investing activities:
Capital expenditures	(429		)	—			(118,458		)	(153,338		)	—		(272,225		)
Contributions to equity method investees	—			—			—			(86,200		)	—		(86,200		)
Proceeds from asset sales	—			—			323			—			—		323
Acquisitions of gathering systems from affiliate, net of acquired cash	(288,618		)	—			—			—			—		(288,618		)
Advances to affiliates	(2,589		)	(88,221		)	(110,003		)	—			200,813		—
Net cash used in investing activities	(291,636		)	(88,221		)	(228,138		)	(239,538		)	200,813		(646,720		)

	Year ended December 31, 2015
	SMLP			Co-Issuers			Guarantor Subsidiaries			Non-Guarantor Subsidiaries		Consolidating adjustments			Total
	(In thousands)
Cash flows from financing activities:
Distributions to unitholders	(152,074		)	—			—			—		—			(152,074		)
Borrowings under revolving credit facility	180,000			187,000			—			—		—			367,000
Repayments under revolving credit facility	(100,000		)	(51,000		)	—			—		—			(151,000		)
Repayments under term loan	(182,500		)	—			—			—		—			(182,500		)
Deferred loan costs	(135		)	(277		)	—			—		—			(412		)
Proceeds from issuance of common units, net	221,977			—			—			—		—			221,977
Contribution from general partner	4,737			—			—			—		—			4,737
Cash advance from Summit Investments to contributed subsidiaries, net	102,500			—			21,719			196,308		—			320,527
Expenses paid by Summit Investments on behalf of contributed subsidiaries	12,655			—			3,864			6,360		—			22,879
Other, net	(1,615		)	—			(192		)	—		—			(1,807		)
Advances from affiliates	198,224			—			—			2,589		(200,813		)	—
Net cash provided by financing activities	283,769			135,723			25,391			205,257		(200,813		)	449,327
Net change in cash and cash equivalents	(7,458		)	786			(423		)	1,077		—			(6,018		)
Cash and cash equivalents, beginning of period	7,531			11,621			7,353			1,306		—			27,811
Cash and cash equivalents, end of period	$	73		$	12,407		$	6,930		$	2,383	$	—		$	21,793

	Year ended December 31, 2014
	SMLP			Co-Issuers			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating adjustments		Total
	(In thousands)
Cash flows from operating activities:
Net cash (used in) provided by operating activities	$	(3,658	)	$	(30,689	)	$	179,685		$	7,615		$	—	$	152,953
Cash flows from investing activities:
Capital expenditures	(460		)	—			(220,360		)	(122,560		)	—		(343,380		)
Initial contribution to Ohio Gathering	—			—			—			(8,360		)	—		(8,360		)
Acquisition of Ohio Gathering Option	—			—			—			(190,000		)	—		(190,000		)
Option Exercise	—			—			—			(382,385		)	—		(382,385		)
Contributions to equity method investees	—			—			—			(145,131		)	—		(145,131		)
Proceeds from asset sales	—			—			325			—			—		325
Acquisition of gathering systems	—			—			(10,872		)	—			—		(10,872		)
Acquisitions of gathering systems from affiliate, net of acquired cash	(305,000		)	—			—			—			—		(305,000		)
Advances to affiliates	(183		)	(174,495		)	(47,271		)	—			221,949		—
Net cash used in investing activities	(305,643		)	(174,495		)	(278,178		)	(848,436		)	221,949		(1,384,803		)

	Year ended December 31, 2014
	SMLP			Co-Issuers			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating adjustments			Total
	(In thousands)
Cash flows from financing activities:
Distributions to unitholders	(122,224		)	—			—			—			—			(122,224		)
Borrowings under revolving credit facility	57,000			237,295			—			—			—			294,295
Repayments under revolving credit facility	(115,000		)	(315,295		)	—			—			—			(430,295		)
Borrowings under term loan	400,000			—			—			—			—			400,000
Repayments under term loan	(100,000		)	—			—			—			—			(100,000		)
Deferred loan costs	(3,003		)	(5,320		)	—			—			—			(8,323		)
Proceeds from issuance of common units, net	197,806			—			—			—			—			197,806
Contribution from general partner	4,235			—			—			—			—			4,235
Cash advance (to) from Summit Investments (from) to contributed subsidiaries, net	(242,000		)	—			81,421			834,962			—			674,383
Expenses paid by Summit Investments on behalf of contributed subsidiaries	12,845			—			10,483			1,556			—			24,884
Issuance of senior notes	—			300,000			—			—			—			300,000
Repurchase of equity-based compensation awards	(228		)	—			—			—			—			(228		)
Other, net	(656		)	—			—			—			—			(656		)
Advances from affiliates	221,766			—			—			183			(221,949		)	—
Net cash provided by financing activities	310,541			216,680			91,904			836,701			(221,949		)	1,233,877
Net change in cash and cash equivalents	1,240			11,496			(6,589		)	(4,120		)	—			2,027
Cash and cash equivalents, beginning of period	6,291			125			13,942			5,426			—			25,784
Cash and cash equivalents, end of period	$	7,531		$	11,621		$	7,353		$	1,306		$	—		$	27,811

	Year ended December 31, 2013
	SMLP			Co-Issuers			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating adjustments		Total
	(In thousands)
Cash flows from operating activities:
Net cash provided by operating activities	$	(544	)	$	(4,799	)	$	141,260		$	(506	)	$	—	$	135,411
Cash flows from investing activities:
Capital expenditures	(930		)	—			(182,048		)	(66,648		)	—		(249,626		)
Proceeds from asset sales	—			—			585			—			—		585
Acquisition of gathering systems	(210,000		)	—			—			—			—		(210,000		)
Acquisitions of gathering systems from affiliate, net of acquired cash	(200,000		)	—			—			—			—		(200,000		)
Advances to affiliates	(84		)	(371,408		)	(36,672		)	—			408,164		—
Net cash used in investing activities	(411,014		)	(371,408		)	(218,135		)	(66,648		)	408,164		(659,041		)

	Year ended December 31, 2013
	SMLP			Co-Issuers			Guarantor Subsidiaries		Non-Guarantor Subsidiaries		Consolidating adjustments			Total
	(In thousands)
Cash flows from financing activities:
Distributions to unitholders	(90,196		)	—			—		—		—			(90,196		)
Borrowings under revolving credit facility	96,000			380,950			—		—		—			476,950
Repayments under revolving credit facility	(3,000		)	(294,180		)	—		—		—			(297,180		)
Borrowings under term loan	200,000			—			—		—		—			200,000
Repayments under term loan	(100,000		)	—			—		—		—			(100,000		)
Deferred loan costs	(3,451		)	(10,608		)	—		—		—			(14,059		)
Contribution from general partner	2,229			—			—		—		—			2,229
Cash advance (to) from Summit Investments (from) to contributed subsidiaries, net	(193,000		)	—			72,745		70,168		—			(50,087		)
Expenses paid by Summit Investments on behalf of contributed subsidiaries	8,088			—			11,964		2,328		—			22,380
Issuance of senior notes	—			300,000			—		—		—			300,000
Repurchase of equity-based compensation awards	(11,957		)	—			—		—		—			(11,957		)
Issuance of units to affiliate in connection with the Mountaineer Acquisition	100,000			—			—		—		—			100,000
Advances from affiliates	408,080			—			—		84		(408,164		)	—
Net cash provided by financing activities	412,793			376,162			84,709		72,580		(408,164		)	538,080
Net change in cash and cash equivalents	1,235			(45		)	7,834		5,426		—			14,450
Cash and cash equivalents, beginning of period	5,056			170			6,108		—		—			11,334
Cash and cash equivalents, end of period	$	6,291		$	125		$	13,942	$	5,426	$	—		$	25,784