Rose Rock Midstream, L.P. (Details 3) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Summarized Balance Sheet Information
Other current assets	$ 15,167	$ 18,516
Property, plant and equipment, net	1,057,116	814,724
Equity method investment	518,149	387,802
Goodwill	60,676	9,884
Other noncurrent assets, net	32,603	8,181
Total assets	2,390,402	1,748,179
Current liabilities	447,636	374,344
Long-term debt	540,043	206,062
Total liabilities and owners' equity	2,390,402	1,748,179
Rose Rock Midstream, L.P. [Member]
Summarized Balance Sheet Information
Cash	1,914	108
Other current assets	292,386	250,509
Property, plant and equipment, net	313,193	291,530
Equity method investment	77,449	0
Goodwill	27,261	0
Other noncurrent assets, net	10,536	2,579
Total assets	722,739	544,726
Current liabilities	254,491	231,843
Long-term debt	85,043	4,562
Partners' capital attributable to parent	130,845	179,187
Partners' capital attributable to noncontrolling interest	252,360	129,134
Total liabilities and owners' equity	$ 722,739	$ 544,726