Condensed Consolidated Statements of Operations and Comprehensive Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Revenues:
Product	$ 235,629	$ 261,635
Service	27,657	27,313
Other	24,410	23,083
Total revenues	287,696	312,031
Expenses:
Costs of products sold, exclusive of depreciation and amortization shown below	212,369	241,521
Operating	40,771	37,991
General and administrative	17,037	19,830
Depreciation and amortization	12,636	11,725
Depreciation and amortization	12,636	11,892
Gain on disposal of long-lived assets, net	(162)	0
Total expenses	282,651	311,067
Earnings from equity method investments	17,345	7,498
Operating income	22,390	8,462
Other expenses (income):
Interest expense	2,396	3,659
Foreign currency transaction (gain) loss	(167)	37
Other expense, net	25,633	3,920
Total other expenses, net	27,862	7,616
Income (loss) from continuing operations before income taxes	(5,472)	846
Income tax benefit	(54,006)	(1,012)
Income from continuing operations	48,534	1,858
Income from discontinued operations, net of income taxes	32	252
Net income	48,566	2,110
Less: net income attributable to noncontrolling interests	5,143	3,483
Net income (loss) attributable to SemGroup	43,423	(1,373)
Other comprehensive income (loss), net of income taxes	(5,058)	12,755
Comprehensive income	43,508	14,865
Less: comprehensive income attributable to noncontrolling interests	5,143	3,483
Comprehensive income attributable to SemGroup	$ 38,365	$ 11,382
Net income per common share (Note 11):
Basic	$ 1.03	$ (0.03)
Diluted	$ 1.03	$ (0.03)