Segments (Tables)

9 Months Ended

Sep. 30, 2012

Segment Reporting [Abstract]

Schedule of Segment Reporting Information

	Three Months Ended September 30, 2012
	Crude			SemStream			SemCAMS		SemGas			SemLogistics			SemMexico			Corporate and Other			Consolidated
									(dollars in thousands)
Revenues:
External	$	131,616		$	—		$	54,301	$	27,627		$	2,213		$	62,095		$	—		$	277,852
Intersegment	—			—			—		2,251			—			—			(2,251		)	—
Total revenues	131,616			—			54,301		29,878			2,213			62,095			(2,251		)	277,852
Expenses:
Costs of products sold, exclusive of depreciation and amortization shown below	111,790			—			309		24,068			97			55,817			(2,251		)	189,830
Operating	6,042			7			40,081		2,931			1,436			1,870			—			52,367
General and administrative	5,015			528			3,354		1,329			990			1,501			3,963			16,680
Depreciation and amortization	3,066			—			2,664		1,797			2,388			1,536			630			12,081
Gain on disposal or impairment of long-lived assets, net	(3,500		)	—			—		(3		)	—			(112		)	—			(3,615		)
Total expenses	122,413			535			46,408		30,122			4,911			60,612			2,342			267,343
Earnings from equity method investments	10,021			(6,905		)	—		—			—			—			—			3,116
Operating income (loss)	19,224			(7,440		)	7,893		(244		)	(2,698		)	1,483			(4,593		)	13,625
Other expenses (income), net	(119		)	(2,551		)	3,419		(378		)	337			(82		)	11,075			11,701
Income (loss) from continuing operations before income taxes	$	19,343		$	(4,889	)	$	4,474	$	134		$	(3,035	)	$	1,565		$	(15,668	)	$	1,924
Total assets at September 30, 2012 (excluding intersegment receivables)	$	747,200		$	190,736		$	298,867	$	124,130		$	175,269		$	90,906		$	83,957		$	1,711,065

	Three Months Ended September 30, 2011
	Crude			SemStream			SemCAMS		SemGas		SemLogistics			SemMexico		Corporate and Other			Consolidated
									(dollars in thousands)
Revenues:
External	$	105,938		$	168,051		$	41,368	$	15,192	$	4,230		$	56,743	$	—		$	391,522
Intersegment	(1,322		)	14,725			—		13,158		—			—		(26,561		)	—
Total revenues	104,616			182,776			41,368		28,350		4,230			56,743		(26,561		)	391,522
Expenses:
Costs of products sold, exclusive of depreciation and amortization shown below	90,660			178,904			—		20,512		152			49,823		(26,561		)	313,490
Operating	4,530			2,018			29,845		2,432		1,564			1,383		—			41,772
General and administrative	2,040			2,164			3,378		1,591		1,604			2,825		3,281			16,883
Depreciation and amortization	3,122			878			2,577		1,528		2,339			1,653		797			12,894
Loss (gain) on disposal or impairment of long-lived assets, net	—			(24		)	—		4		—			20		—			—
Total expenses	100,352			183,940			35,800		26,067		5,659			55,704		(22,483		)	385,039
Earnings from equity method investments	4,016			—			—		—		—			—		—			4,016
Operating income (loss)	8,280			(1,164		)	5,568		2,283		(1,429		)	1,039		(4,078		)	10,499
Other expenses (income), net	(349		)	(638		)	1,990		82		312			479		(7,710		)	(5,834		)
Income (loss) from continuing operations before income taxes	$	8,629		$	(526	)	$	3,578	$	2,201	$	(1,741	)	$	560	$	3,632		$	16,333

	Nine Months Ended September 30, 2012
	Crude			SemStream			SemCAMS		SemGas			SemLogistics			SemMexico			Corporate and Other			Consolidated
	(dollars in thousands)
Revenues:
External	$	468,748		$	7		$	169,149	$	81,917		$	8,610		$	193,229		$	—		$	921,660
Intersegment	—			—			—		7,535			—			—			(7,535		)	—
Total revenues	468,748			7			169,149		89,452			8,610			193,229			(7,535		)	921,660
Expenses:
Costs of products sold, exclusive of depreciation and amortization shown below	412,847			33			499		70,607			196			174,636			(7,535		)	651,283
Operating	17,957			(18		)	135,165		9,092			4,521			6,033			—			172,750
General and administrative	9,796			582			10,404		4,564			4,249			6,730			16,748			53,073
Depreciation and amortization	9,032			—			7,910		5,153			7,040			4,614			1,938			35,687
Gain on disposal or impairment of long-lived assets, net	(3,444		)	—			—		(3		)	—			(49		)	—			(3,496		)
Total expenses	446,188			597			153,978		89,413			16,006			191,964			11,151			909,297
Earnings from equity method investments	25,053			(2,150		)	—		—			—			—			—			22,903
Operating income (loss)	47,613			(2,740		)	15,171		39			(7,396		)	1,265			(18,686		)	35,266
Other expenses (income), net	(739		)	(2,507		)	13,974		924			1,805			233			11,214			24,904
Income (loss) from continuing operations before income taxes	$	48,352		$	(233	)	$	1,197	$	(885	)	$	(9,201	)	$	1,032		$	(29,900	)	$	10,362

	Nine Months Ended September 30, 2011
	Crude			SemStream			SemCAMS		SemGas		SemLogistics		SemMexico			Corporate and Other			Consolidated
	(dollars in thousands)
Revenues:
External	$	301,626		$	492,938		$	122,004	$	42,923	$	18,815	$	156,024		$	757		$	1,135,087
Intersegment	(2,505		)	44,249			—		31,753		—		—			(73,497		)	—
Total revenues	299,121			537,187			122,004		74,676		18,815		156,024			(72,740		)	1,135,087
Expenses:
Costs of products sold, exclusive of depreciation and amortization shown below	252,804			528,356			10		52,150		152		136,378			(72,979		)	896,871
Operating	13,683			6,390			80,611		6,282		5,129		4,231			58			116,384
General and administrative	6,508			6,727			12,737		4,829		5,276		8,983			11,383			56,443
Depreciation and amortization	8,505			3,501			7,746		4,410		6,943		4,912			2,338			38,355
Loss (gain) on disposal or impairment of long-lived assets, net	12			40			—		4		—		(186		)	(6		)	(136		)
Total expenses	281,512			545,014			101,104		67,675		17,500		154,318			(59,206		)	1,107,917
Earnings from equity method investments	10,166			—			—		—		—		—			—			10,166
Operating income (loss)	27,775			(7,827		)	20,900		7,001		1,315		1,706			(13,534		)	37,336
Other expenses (income), net	1,919			14,323			16,661		1,829		740		(145		)	(4,000		)	31,327
Income (loss) from continuing operations before income taxes	$	25,856		$	(22,150	)	$	4,239	$	5,172	$	575	$	1,851		$	(9,534	)	$	6,009