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Length of Pipeline Network

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Limited Partnership Unit Issuance Costs, Incurred and offset against proceeds

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Represents the purchase price in excess of histrorical cost which was attributed to the noncontrolling interest holders in the sale of an equity investment interest to a less-than wholly owned subsidiary. The offsetting adjustment to APIC is net of tax.

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No definition available.

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Tax effect of adjustment to APIC from sale of equity investment to less than wholly owned subsidiary

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Transaction related costs

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Amount of cash paid to acquire the entity.

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This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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Amount of debt issuance costs (for example, but not limited to, legal, accounting, broker, and regulatory fees).

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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The difference between the carrying value and the sale price of equity securities, not separately or otherwise categorized as trading or available-for-sale. This element includes investments in which the entity holds a small ownership stake (generally, less than 20% of the shares outstanding) and cannot exert significant influence.

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The number of units or percentage investment held by the managing member or general partner of the LLC or LP.

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The number of units or percentage investment held by one or more members or limited partners of the LLC or LP.

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The number of limited partner units outstanding.

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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The distribution amount per share for all classes of units.

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The cash inflow from the additional capital contribution to the entity.

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-Name Statement of Financial Accounting Standard (FAS)

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The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with either short term or long term maturity that is collateralized (backed by pledge, mortgage or other lien in the entity's assets).

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Number of new stock issued during the period.

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Rose Rock Midstream, L.P. (Details Textual) (USD $)	3 Months Ended				0 Months Ended		3 Months Ended	0 Months Ended					3 Months Ended					3 Months Ended
Rose Rock Midstream, L.P. (Details Textual) (USD $)	Mar. 31, 2013 mi	Mar. 31, 2013 Common Units [Member]	Mar. 31, 2013 Class A [Member]	Mar. 31, 2013 Subordinated Units [Member]	Jan. 11, 2013 SemCrude Pipeline [Member]	Jan. 13, 2013 Rose Rock Midstream, L.P. [Member]	Mar. 31, 2013 Rose Rock Midstream, L.P. [Member]	Jan. 11, 2013 Rose Rock Midstream, L.P. [Member] Common Units [Member]	Jan. 11, 2013 Rose Rock Midstream, L.P. [Member] Class A [Member]	Jan. 11, 2013 Rose Rock Midstream, L.P. [Member] Private Placement [Member]	Jan. 11, 2013 Rose Rock Midstream, L.P. [Member] Private Placement [Member] Common Units [Member]	Jan. 11, 2013 White Cliffs Pipeline, L.L.C. [Member] bbl	Mar. 31, 2013 White Cliffs Pipeline, L.L.C. [Member] mi	Mar. 31, 2013 SemCrude Pipeline [Member]	Jan. 11, 2013 SemCrude Pipeline [Member] White Cliffs Pipeline, L.L.C. [Member]	Jan. 13, 2013 Revolving Credit Facility [Member] Rose Rock Midstream, L.P. [Member]	Dec. 31, 2012 Revolving Credit Facility [Member] Rose Rock Credit Facility [Member] Rose Rock Midstream, L.P. [Member]	Mar. 31, 2013 Limited Partner [Member] Rose Rock Midstream, L.P. [Member]	Mar. 31, 2013 General Partner [Member] Rose Rock Midstream, L.P. [Member]	Mar. 31, 2013 Noncontrolling Interest [Member]	Mar. 31, 2013 Additional Paid-In Capital [Member]
Subsidiary (Textual) [Abstract]
Common units representing limited partner interests		2,900,000	1,250,000	8,400,000
Partners' minimum quarterly distribution per unit	$ 0.3625
Equity Method Investment, Ownership Percentage													17.00%	33.00%	51.00%
Length Of Pipeline Network	210												527
Gain (Loss) on Sale of Equity Investments					$ 0
Sale of interest in equity investment to related party	33,716,000																			90,516,000	(56,800,000)
Tax effect of adjustment to APIC from sale of equity investment to less than wholly owned subsidiary	33,700,000
Business Acquisition, Cost of Acquired Entity, Cash Paid					189,500,000
Stock Issued During Period, Shares, New Issues	84,348							1,500,000	1,250,000		2,000,000
Average daily throughput threshold in barrels for conversion of Class A units												125,000
Proceeds from Issuance of Common Stock										59,300,000
Line of Credit Facility, Current Borrowing Capacity																385,000,000	150,000,000
Proceeds from Lines of Credit						133,500,000
Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest																			2.00%
Transaction related costs	1,400,000						3,500,000
Limited Partnership Unit Issuance Costs, Incurred							1,400,000
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest																		58.20%
Debt Issuance Cost							1,600,000
Business Combination, Acquisition Related Costs							$ 500,000