Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 80,029	$ 73,613
Restricted cash	34,678	39,543
Accounts receivable (net of allowance of $3,687 and $3,623 at December 31, 2012 and 2011, respectively)	346,169	209,781
Receivable from affiliates	6,178	6,408
Inventories	34,433	31,994
Other current assets	18,516	28,396
Total current assets	520,003	389,735
Property, plant and equipment (net of accumulated depreciation of $130,886 and $83,481 at December 31, 2012 and 2011, respectively)	814,724	733,925
Equity method investments	387,802	327,243
Goodwill	9,884	9,453
Other intangible assets (net of accumulated amortization of $6,701 and $4,336 at December 31, 2012 and 2011, respectively)	7,585	8,950
Other noncurrent assets, net	8,181	21,875
Total assets	1,748,179	1,491,181
Current liabilities:
Accounts payable	253,623	145,203
Payable to affiliates	0	6,314
Accrued liabilities	63,831	53,675
Payables to pre-petition creditors	32,933	37,800
Deferred revenue	18,973	23,031
Other current liabilities	4,960	4,430
Current portion of long-term debt	24	26,058
Total current liabilities	374,344	296,511
Long-term debt	206,062	83,277
Deferred income taxes	65,620	73,784
Other noncurrent liabilities	80,625	58,944
Commitments and contingencies (Note 16)
SemGroup Corporation owners’ equity:
Common stock (Note 17)	420	418
Additional paid-in capital	1,039,189	1,032,365
Treasury stock, at cost (Note 17)	(242)	0
Accumulated deficit	(145,674)	(167,812)
Accumulated other comprehensive loss	(1,299)	(13,875)
Total SemGroup Corporation owners’ equity	892,394	851,096
Noncontrolling interests in consolidated subsidiaries	129,134	127,569
Total owners’ equity	1,021,528	978,665
Total liabilities and owners’ equity	$ 1,748,179	$ 1,491,181