Average daily throughput threshold in barrels for conversion of Class A units

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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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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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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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Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (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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The number of units sold in a public offering of each class of partners' capital account. Units represent shares of ownership of the general, limited, and preferred partners.

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The cash outflow for cost incurred directly with the issuance of an equity security.

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The cash inflow from the issuance of common limited partners units during the period.

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Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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Cash received on stock transaction after deduction of issuance costs.

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The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

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Rose Rock Midstream, L.P. (Details Textual) (USD $)	12 Months Ended			0 Months Ended	1 Months Ended			0 Months Ended
Rose Rock Midstream, L.P. (Details Textual) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jan. 11, 2013	Aug. 30, 2013	Aug. 31, 2013	Jun. 23, 2014	Dec. 16, 2013	Feb. 17, 2015	Jan. 02, 2015	Feb. 13, 2015
Proceeds from Sale of Equity Method Investments	$ 79,741,000	$ 0	$ 0
Sale of interest in equity investment to related party	(31,930,000)	(67,291,000)
Tax effect of adjustment to APIC from sale of equity investment to less than wholly owned subsidiary	31,930,000	67,291,000
Rose Rock Midstream L P [Member]
General partner ownership interest	2.00%
Proceeds from lines of credit				133,500,000
Semcrude Pipeline [Member]
Gain on sale of interests in SemCrude Pipeline	0	0
Common Units [Member] \| Rose Rock Midstream L P [Member]
Common units representing limited partner interests	6,814,709
Limited Partners' Capital Account, Units Issued					4,750,000
Subordinated Units [Member] \| Rose Rock Midstream L P [Member]
Common units representing limited partner interests	8,389,709
Class A [Member] \| Rose Rock Midstream L P [Member]
Common units representing limited partner interests	3,750,000
Private Placement [Member] \| Common Units [Member] \| Rose Rock Midstream L P [Member]
Common units sold in public offering				2,000,000
Proceeds from issuance of common stock				59,300,000
Glass Mountain Pipeline Llc [Member] \| Partnership Interest [Member]
Equity method investment, ownership percentage	50.00%
White Cliffs Pipeline, LLC [Member]
Equity method investment, ownership percentage	51.00%
Average daily throughput threshold in barrels for conversion of Class A units	125,000
White Cliffs Pipeline, LLC [Member] \| Semcrude Pipeline [Member]
Equity method investment, ownership percentage	51.00%
General Partner [Member] \| Rose Rock Midstream L P [Member]
General partner ownership interest	2.00%
Common Units [Member] \| Rose Rock Midstream L P [Member]
Proceeds from Issuance of Common Limited Partners Units						152,500,000
Noncontrolling Interest [Member]
Sale of interest in equity investment to related party	(85,173,000)	(180,220,000)
Additional Paid-in Capital [Member]
Sale of interest in equity investment to related party	53,243,000	112,929,000
Third contribution of 33% Interest in SemCrude Pipeline [Domain] \| Semcrude Pipeline [Member]
Equity method investment, ownership percentage							33.00%
Third contribution of 33% Interest in SemCrude Pipeline [Domain] \| Rose Rock Midstream L P [Member] \| Common Units [Member]
Noncash or Part Noncash Divestiture, Amount of Consideration Received							2,425,000
Third contribution of 33% Interest in SemCrude Pipeline [Domain] \| Rose Rock Midstream L P [Member] \| Class A [Member]
Noncash or Part Noncash Divestiture, Amount of Consideration Received							1,250,000
Third contribution of 33% Interest in SemCrude Pipeline [Domain] \| Rose Rock Midstream L P [Member] \| Semcrude Pipeline [Member]
Proceeds from Sale of Equity Method Investments							114,400,000
Initial contribution of 33% Interest in SemCrude Pipeline [Member] [Member] \| Semcrude Pipeline [Member]
Equity method investment, ownership percentage				33.00%
Initial contribution of 33% Interest in SemCrude Pipeline [Member] [Member] \| Rose Rock Midstream L P [Member] \| Common Units [Member]
Noncash or Part Noncash Divestiture, Amount of Consideration Received				1,500,000
Initial contribution of 33% Interest in SemCrude Pipeline [Member] [Member] \| Rose Rock Midstream L P [Member] \| Class A [Member]
Noncash or Part Noncash Divestiture, Amount of Consideration Received				1,250,000
Initial contribution of 33% Interest in SemCrude Pipeline [Member] [Member] \| Rose Rock Midstream L P [Member] \| Semcrude Pipeline [Member]
Proceeds from Sale of Equity Method Investments				189,500,000
Second contribution of 33% Interest in SemCrude Pipeline [Member] \| Semcrude Pipeline [Member]
Equity method investment, ownership percentage								33.00%
Second contribution of 33% Interest in SemCrude Pipeline [Member] \| Rose Rock Midstream L P [Member] \| Common Units [Member]
Noncash or Part Noncash Divestiture, Amount of Consideration Received								1,500,000
Second contribution of 33% Interest in SemCrude Pipeline [Member] \| Rose Rock Midstream L P [Member] \| Class A [Member]
Noncash or Part Noncash Divestiture, Amount of Consideration Received								1,250,000
Second contribution of 33% Interest in SemCrude Pipeline [Member] \| Rose Rock Midstream L P [Member] \| Semcrude Pipeline [Member]
Proceeds from Sale of Equity Method Investments								173,100,000
SemCrude Pipeline Acquisition Transactions [Member]
Transaction costs expensed	900,000	2,200,000
SemCrude Pipeline Acquisition Transactions [Member] \| Rose Rock Midstream L P [Member]
Transaction costs expensed	400,000	900,000
Equity issuance costs paid from proceeds		1,600,000
SemCrude Pipeline Acquisition Transactions [Member] \| Revolving Credit Facility [Member] \| Rose Rock Midstream L P [Member]
Deferred borrowing costs		1,600,000
Minimum [Member] \| First Target Distribution [Member] \| Rose Rock Midstream L P [Member]
Partners' minimum quarterly distribution per unit	0.3625
Crude [Member] \| Glass Mountain Pipeline Llc [Member]
Equity method investment, ownership percentage	50.00%
Crude [Member] \| White Cliffs Pipeline, LLC [Member]
Equity method investment, ownership percentage	51.00%
Crude [Member] \| General Partner [Member] \| Rose Rock Midstream L P [Member]
General partner ownership interest	2.00%
Crude [Member] \| Limited Partner [Member] \| Rose Rock Midstream L P [Member]
Limited partner ownership interest	56.80%
Crude [Member] \| Limited Partner [Member] \| Semcrude Pipeline [Member] \| Rose Rock Midstream L P [Member]
Limited partner ownership interest	100.00%
Subsequent Event [Member] \| Subordinated Units [Member] \| Rose Rock Midstream L P [Member]
Limited partners' capital account, units converted to common									8,389,709
Subsequent Event [Member] \| Class A [Member] \| Rose Rock Midstream L P [Member]
Limited partners' capital account, units converted to common										3,750,000
Subsequent Event [Member] \| Wattenberg Oil Trunkline and Glass Mountain Pipeline [Member] \| Common Units [Member] \| Rose Rock Midstream L P [Member]
Common units sold in public offering											2,300,000
Proceeds from issuance of common stock											89,100,000
Subsequent Event [Member] \| Wattenberg Oil Trunkline and Glass Mountain Pipeline [Member] \| Rose Rock Midstream L P [Member]
Proceeds from Sale of Equity Method Investments											$ 251,200,000
Subsequent Event [Member] \| Wattenberg Oil Trunkline and Glass Mountain Pipeline [Member] \| Rose Rock Midstream L P [Member] \| Common Units [Member]
Noncash or Part Noncash Divestiture, Amount of Consideration Received											1,750,000