CONDENSED CONSOLIDATING FINANCIAL INFORMATION (Tables)

6 Months Ended

Jun. 30, 2018

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Condensed Balance Sheet

Balance sheets as of June 30, 2018 and December 31, 2017 follow.

	June 30, 2018
	SMLP		Co-Issuers		Guarantor Subsidiaries		Non-Guarantor Subsidiaries		Consolidating adjustments			Total
	(In thousands)
Assets
Cash and cash equivalents	$	2,616	$	92	$	4,998	$	506	$	—		$	8,212
Accounts receivable		22		—		68,274		11,870		—			80,166
Other current assets		1,057		—		1,273		264		—			2,594
Due from affiliate		—		—		507,396		51,852		(559,248	)		—
Total current assets		3,695		92		581,941		64,492		(559,248	)		90,972
Property, plant and equipment, net		4,314		—		1,537,468		345,977		—			1,887,759
Intangible assets, net		—		—		263,416		23,249		—			286,665
Goodwill		—		—		16,211		—		—			16,211
Investment in equity method     investees		—		—		—		670,827		—			670,827
Other noncurrent assets		3,288		9,762		94		—		—			13,144
Investment in subsidiaries		2,062,096		3,396,771		—		—		(5,458,867	)		—
Total assets	$	2,073,393	$	3,406,625	$	2,399,130	$	1,104,545	$	(6,018,115	)	$	2,965,578
Liabilities and Partners' Capital
Trade accounts payable	$	141	$	—	$	18,280	$	3,277	$	—		$	21,698
Accrued expenses		803		—		17,030		1,600		—			19,433
Due to affiliate		374,074		185,265		—		—		(559,248	)		91
Deferred revenue		—		—		10,341		437		—			10,778
Ad valorem taxes payable		9		—		6,224		271		—			6,504
Accrued interest		—		12,259		—		—		—			12,259
Accrued environmental remediation		—		—		—		3,522		—			3,522
Other current liabilities		3,477		—		3,573		362		—			7,412
Total current liabilities		378,504		197,524		55,448		9,469		(559,248	)		81,697
Long-term debt		—		1,147,005		—		—		—			1,147,005
Deferred Purchase Price Obligation		453,922		—		—		—		—			453,922
Noncurrent deferred revenue		—		—		36,416		1,703		—			38,119
Noncurrent accrued environmental     remediation		—		—		—		1,617		—			1,617
Other noncurrent liabilities		4,159		—		2,197		54		—			6,410
Total liabilities		836,585		1,344,529		94,061		12,843		(559,248	)		1,728,770
Total partners' capital		1,236,808		2,062,096		2,305,069		1,091,702		(5,458,867	)		1,236,808
Total liabilities and partners' capital	$	2,073,393	$	3,406,625	$	2,399,130	$	1,104,545	$	(6,018,115	)	$	2,965,578

	December 31, 2017
	SMLP		Co-Issuers		Guarantor Subsidiaries		Non-Guarantor Subsidiaries		Consolidating adjustments			Total
	(In thousands)
Assets
Cash and cash equivalents	$	126	$	75	$	1,138	$	91	$	—		$	1,430
Accounts receivable		22		—		65,842		6,437		—			72,301
Other current assets		1,188		—		2,697		442		—			4,327
Due from affiliate		—		—		493,067		22,030		(515,097	)		—
Total current assets		1,336		75		562,744		29,000		(515,097	)		78,058
Property, plant and equipment, net		4,206		—		1,442,333		348,590		—			1,795,129
Intangible assets, net		—		—		278,958		22,387		—			301,345
Goodwill		—		—		16,211		—		—			16,211
Investment in equity method     investees		—		—		—		690,485		—			690,485
Other noncurrent assets		2,547		10,913		105		—		—			13,565
Investment in subsidiaries		2,019,700		3,324,464		—		—		(5,344,164	)		—
Total assets	$	2,027,789	$	3,335,452	$	2,300,351	$	1,090,462	$	(5,859,261	)	$	2,894,793
Liabilities and Partners' Capital
Trade accounts payable	$	209	$	—	$	11,283	$	4,883	$	—		$	16,375
Accrued expenses		928		—		10,592		979		—			12,499
Due to affiliate		263,935		252,250		—		—		(515,097	)		1,088
Deferred revenue		—		—		4,000		—		—			4,000
Ad valorem taxes payable		—		—		7,809		520		—			8,329
Accrued interest		—		12,310		—		—		—			12,310
Accrued environmental remediation		—		—		—		3,130		—			3,130
Other current liabilities		6,395		—		4,385		478		—			11,258
Total current liabilities		271,467		264,560		38,069		9,990		(515,097	)		68,989
Long-term debt		—		1,051,192		—		—		—			1,051,192
Deferred Purchase Price Obligation		362,959		—		—		—		—			362,959
Deferred revenue		—		—		12,707		—		—			12,707
Noncurrent accrued environmental     remediation		—		—		—		2,214		—			2,214
Other noncurrent liabilities		3,694		—		3,293		76		—			7,063
Total liabilities		638,120		1,315,752		54,069		12,280		(515,097	)		1,505,124
Total partners' capital		1,389,669		2,019,700		2,246,282		1,078,182		(5,344,164	)		1,389,669
Total liabilities and partners' capital	$	2,027,789	$	3,335,452	$	2,300,351	$	1,090,462	$	(5,859,261	)	$	2,894,793

Condensed Statement of Operations

Statements of operations for the three and six months ended June 30, 2018 and 2017 follow.

	Three months ended June 30, 2018
	SMLP			Co-Issuers			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating adjustments			Total
	(In thousands)
Revenues:
Gathering services and related fees	$	—		$	—		$	73,891		$	15,694		$	—		$	89,585
Natural gas, NGLs and condensate     sales		—			—			31,891			—			—			31,891
Other revenues		—			—			6,509			198			—			6,707
Total revenues		—			—			112,291			15,892			—			128,183
Costs and expenses:
Cost of natural gas and NGLs		—			—			24,384			—			—			24,384
Operation and maintenance		—			—			22,221			2,245			—			24,466
General and administrative		—			—			11,907			1,577			—			13,484
Depreciation and amortization		444			—			22,776			3,564			—			26,784
(Gain) loss on asset sales, net		—			—			(1	)		63			—			62
Long-lived asset impairment		—			—			587			—			—			587
Total costs and expenses		444			—			81,874			7,449			—			89,767
Other income		27			—			—			—			—			27
Interest expense		—			(14,837	)		—			—			—			(14,837	)
Deferred Purchase Price Obligation		(69,305	)		—			—			—			—			(69,305	)
(Loss) income before income     taxes and loss from equity     method investees		(69,722	)		(14,837	)		30,417			8,443			—			(45,699	)
Income tax expense		(294	)		—			—			—			—			(294	)
Loss from equity method     investees		—			—			—			(3,920	)		—			(3,920	)
Equity in earnings of consolidated     subsidiaries		20,103			34,940			—			—			(55,043	)		—
Net (loss) income	$	(49,913	)	$	20,103		$	30,417		$	4,523		$	(55,043	)	$	(49,913	)

	Three months ended June 30, 2017
	SMLP		Co-Issuers			Guarantor Subsidiaries		Non-Guarantor Subsidiaries			Consolidating adjustments			Total
	(In thousands)
Revenues:
Gathering services and related fees	$	—	$	—		$	67,679	$	17,122		$	—		$	84,801
Natural gas, NGLs and condensate     sales		—		—			10,595		—			—			10,595
Other revenues		—		—			6,332		64			—			6,396
Total revenues		—		—			84,606		17,186			—			101,792
Costs and expenses:
Cost of natural gas and NGLs		—		—			9,099		—			—			9,099
Operation and maintenance		—		—			22,169		1,847			—			24,016
General and administrative		—		—			10,886		2,063			—			12,949
Depreciation and amortization		154		—			25,282		3,252			—			28,688
Transaction costs		119		—			—		—			—			119
Loss on asset sales, net		—		—			67		—			—			67
Long-lived asset impairment		—		—			2		1			—			3
Total costs and expenses		273		—			67,505		7,163			—			74,941
Other income		64		—			—		—			—			64
Interest expense		—		(17,553	)		—		—			—			(17,553	)
Deferred Purchase Price Obligation		5,058		—			—		—			—			5,058
Income (loss) before income     taxes and loss from equity     method investees		4,849		(17,553	)		17,101		10,023			—			14,420
Income tax benefit		211		—			—		—			—			211
Loss from equity method     investees		—		—			—		(3,385	)		—			(3,385	)
Equity in earnings of consolidated     subsidiaries		6,186		23,739			—		—			(29,925	)		—
Net income	$	11,246	$	6,186		$	17,101	$	6,638		$	(29,925	)	$	11,246

	Six months ended June 30, 2018
	SMLP			Co-Issuers			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Consolidating adjustments			Total
	(In thousands)
Revenues:
Gathering services and related fees	$	—		$	—		$	143,357		$	30,589		$	—		$	173,946
Natural gas, NGLs and condensate     sales		—			—			58,008			—			—			58,008
Other revenues		—			—			13,236			313			—			13,549
Total revenues		—			—			214,601			30,902			—			245,503
Costs and expenses:
Cost of natural gas and NGLs		—			—			44,670			—			—			44,670
Operation and maintenance		—			—			44,374			4,696			—			49,070
General and administrative		—			—			24,244			3,682			—			27,926
Depreciation and amortization		876			—			45,637			6,948			—			53,461
(Gain) loss on asset sales, net		—			—			(75	)		63			—			(12	)
Long-lived asset impairment		—			—			587			—			—			587
Total costs and expenses		876			—			159,437			15,389			—			175,702
Other income		20			—			—			—			—			20
Interest expense		—			(29,959	)		—			—			—			(29,959	)
Deferred Purchase Price Obligation		(90,963	)		—			—			—			—			(90,963	)
(Loss) income before income     taxes and loss from equity     method investees		(91,819	)		(29,959	)		55,164			15,513			—			(51,101	)
Income tax expense		(123	)		—			—			—			—			(123	)
Loss from equity method     investees		—			—			—			(2,534	)		—			(2,534	)
Equity in earnings of consolidated     subsidiaries		38,184			68,143			—			—			(106,327	)		—
Net (loss) income	$	(53,758	)	$	38,184		$	55,164		$	12,979		$	(106,327	)	$	(53,758	)

	Six months ended June 30, 2017
	SMLP			Co-Issuers			Guarantor Subsidiaries		Non-Guarantor Subsidiaries			Consolidating adjustments			Total
	(In thousands)
Revenues:
Gathering services and related fees	$	—		$	—		$	170,192	$	32,622		$	—		$	202,814
Natural gas, NGLs and condensate     sales		—			—			21,715		—			—			21,715
Other revenues		—			—			12,932		136			—			13,068
Total revenues		—			—			204,839		32,758			—			237,597
Costs and expenses:
Cost of natural gas and NGLs		—			—			18,151		—			—			18,151
Operation and maintenance		—			—			44,189		3,519			—			47,708
General and administrative		—			—			23,371		3,710			—			27,081
Depreciation and amortization		308			—			50,524		6,425			—			57,257
Transaction costs		119			—			—		—			—			119
Loss on asset sales, net		—			—			70		—			—			70
Long-lived asset impairment		—			—			2		285			—			287
Total costs and expenses		427			—			136,307		13,939			—			150,673
Other income		135			—			—		—			—			135
Interest expense		—			(34,269	)		—		—			—			(34,269	)
Early extinguishment of debt		—			(22,020	)		—		—			—			(22,020	)
Deferred Purchase Price Obligation		(15,825	)		—			—		—			—			(15,825	)
(Loss) income before income     taxes and loss from equity     method investees		(16,117	)		(56,289	)		68,532		18,819			—			14,945
Income tax expense		(241	)		—			—		—			—			(241	)
Loss from equity method     investees		—			—			—		(4,041	)		—			(4,041	)
Equity in earnings of consolidated     subsidiaries		27,021			83,310			—		—			(110,331	)		—
Net income	$	10,663		$	27,021		$	68,532	$	14,778		$	(110,331	)	$	10,663

Condensed Cash Flow Statement

Statements of cash flows for the six months ended June 30, 2018 and 2017 follow.

	Six months ended June 30, 2018
	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	$	(68	)	$	(27,877	)	$	103,965		$	34,029		$	—		$	110,049
Cash flows from investing     activities:
Capital expenditures		(972	)		—			(85,187	)		(4,235	)		—			(90,394	)
Proceeds from asset sales		—			—			—			496			—			496
Other, net		(306	)		—			—			—			—			(306	)
Advances to affiliates		—			(66,985	)		(14,329	)		(29,820	)		111,134			—
Net cash used in     investing activities		(1,278	)		(66,985	)		(99,516	)		(33,559	)		111,134			(90,204	)
Cash flows from financing     activities:
Distributions to common unitholders		(90,269	)		—			—			—			—			(90,269	)
Distributions to Series A Preferred     unitholders		(14,250	)		—			—			—			—			(14,250	)
Borrowings under Revolving Credit     Facility		—			148,000			—			—			—			148,000
Repayments under Revolving Credit     Facility		—			(53,000	)		—			—			—			(53,000	)
Debt issuance costs		—			(121	)		—			—			—			(121	)
Other, net		(2,779	)		—			(589	)		(55	)		—			(3,423	)
Advances from affiliates		111,134			—			—			—			(111,134	)		—
Net cash provided by (used in)     financing activities		3,836			94,879			(589	)		(55	)		(111,134	)		(13,063	)
Net change in cash and cash     equivalents		2,490			17			3,860			415			—			6,782
Cash and cash equivalents,     beginning of period		126			75			1,138			91			—			1,430
Cash and cash equivalents,     end of period	$	2,616		$	92		$	4,998		$	506		$	—		$	8,212

	Six months ended June 30, 2017
	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	$	424		$	(32,466	)	$	114,863		$	38,520		$	—		$	121,341
Cash flows from investing     activities:
Capital expenditures		(6,412	)		—			(23,578	)		(15,922	)		—			(45,912	)
Contributions to equity method     investees		—			—			—			(15,649	)		—			(15,649	)
Other, net		(521	)		—			—			—			—			(521	)
Advances to affiliates		7,635			23,020			(95,361	)		—			64,706			—
Net cash provided by (used in)     investing activities		702			23,020			(118,939	)		(31,571	)		64,706			(62,082	)
Cash flows from financing     activities:
Distributions to unitholders		(89,029	)		—			—			—			—			(89,029	)
Borrowings under Revolving Credit     Facility		—			112,500			—			—			—			112,500
Repayments under Revolving Credit     Facility		—			(269,500	)		—			—			—			(269,500	)
Debt issuance costs		—			(15,613	)		—			—			—			(15,613	)
Payment of redemption and call     premiums on senior notes		—			(17,913	)		—			—			—			(17,913	)
Proceeds from ATM Program     issuances, net of costs		17,259			—			—			—			—			17,259
Contribution from General Partner		465			—			—			—			—			465
Issuance of senior notes		—			500,000			—			—			—			500,000
Tender and redemption of senior     notes		—			(300,000	)		—			—			—			(300,000	)
Other, net		(2,632	)		—			372			(8	)		—			(2,268	)
Advances from affiliates		72,341			—			—			(7,635	)		(64,706	)		—
Net cash (used in) provided by    financing activities		(1,596	)		9,474			372			(7,643	)		(64,706	)		(64,099	)
Net change in cash and cash     equivalents		(470	)		28			(3,704	)		(694	)		—			(4,840	)
Cash and cash equivalents,     beginning of period		698			51			5,768			911			—			7,428
Cash and cash equivalents, end of     period	$	228		$	79		$	2,064		$	217		$	—		$	2,588