Equity Method Investment, Additional Ownership Percentage

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- Definition

Estimated future developement costs

+ References

No definition available.

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- Definition

Estimated Project Contributions in Year Two

+ References

No definition available.

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- Definition

Expected additional cash capital contribution year one.

+ References

No definition available.

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- Definition

Length of Pipeline Network

+ References

No definition available.

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- Definition

Width of pipeline in inches

+ References

No definition available.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

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- Definition

This item represents the aggregate value of each identified investment accounted for under the equity method of accounting based on the quoted market price for those investments in common stock for which a quoted market price is available.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

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- Definition

The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.4)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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- Definition

Number of shares of affiliates held for management investment companies.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 946

-SubTopic 320

-Section S99

-Paragraph 6

-Subparagraph (SX 210.12-14.Column B)

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 14

-Paragraph Column B

-Article 12

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- Definition

Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 272

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055

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- Definition

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

+ References

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- Definition

The number of limited partner units outstanding.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 272

-SubTopic 10

-Section 50

-Paragraph 1

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-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 5

-Subparagraph (SAB TOPIC 4.F)

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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 4

-Section F

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- Definition

Total contributions made by each class of partners (i.e., general, limited and preferred partners).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 2: http://www.xbrl.org/2003/role/presentationRef

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-Topic 505

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- Definition

Percentage of subsidiary's or equity investee's stock owned by parent company after stock transaction.

+ References

No definition available.

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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (e)

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Investments in Non-Consolidated Subsidiaries (Details Textual) (USD $)	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended				3 Months Ended		9 Months Ended	14 Months Ended	3 Months Ended		9 Months Ended	17 Months Ended
	Sep. 30, 2013 mi	Sep. 30, 2012	Sep. 30, 2013 Width	Sep. 30, 2012	Sep. 30, 2013 White Cliffs Pipeline, L.L.C. [Member]	Sep. 30, 2012 White Cliffs Pipeline, L.L.C. [Member]	Sep. 30, 2013 White Cliffs Pipeline, L.L.C. [Member] mi	Sep. 30, 2012 White Cliffs Pipeline, L.L.C. [Member]	Sep. 30, 2013 General Partner [Member] NGL Energy Partners LP [Member]	Mar. 31, 2013 General Partner [Member] NGL Energy Partners LP [Member]	Sep. 30, 2013 NGL Energy Partners LP [Member]	Jun. 30, 2013 NGL Energy Partners LP [Member]	Mar. 31, 2013 NGL Energy Partners LP [Member] Limited Partner Interests [Member]	Sep. 30, 2013 White Cliffs Pipeline, L.L.C. [Member] Semcrude Pipeline [Member]	Sep. 30, 2013 White Cliffs Pipeline, L.L.C. [Member] Semcrude Pipeline [Member]	Sep. 30, 2013 White Cliffs Pipeline, L.L.C. [Member] Semcrude Pipeline [Member]	Sep. 30, 2013 Glass Mountain Pipeline Llc [Member]	Sep. 30, 2012 Glass Mountain Pipeline Llc [Member]	Sep. 30, 2013 Glass Mountain Pipeline Llc [Member]	Sep. 30, 2013 Glass Mountain Pipeline Llc [Member]	May 31, 2012 Glass Mountain Pipeline Llc [Member]	Sep. 30, 2013 Pipeline expansion [Member] White Cliffs Pipeline, L.L.C. [Member] Semcrude Pipeline [Member]
Equity method investment, ownership percentage							51.00%
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest													17.00%
Width of pipeline in inches			12
Total expected project costs														$ 300,000,000	$ 300,000,000	$ 300,000,000
Partners' Capital Account, Contributions														35,900,000	95,500,000	97,800,000	6,700,000		28,000,000	102,400,000
Estimated Project Contributions in Year Two																	3,500,000		3,500,000	3,500,000		53,300,000
General and administrative	20,952,000	16,680,000	54,887,000	53,073,000	500,000	0	1,200,000	1,500,000
Common units											9,133,409
Percentage of ownership interest					17.00%		17.00%							51.00%	51.00%	51.00%	50.00%		50.00%	50.00%	25.00%
Common units representing limited partner interests												53,622,659
General Partner Ownership Interest									11.78%	11.78%
Fair market value of common units											281,700,000
Share Price	$ 57.02		$ 57.02								$ 30.84
Length Of Pipeline Network	210						527
Equity Method Investment, Additional Ownership Percentage																		25.00%
Additional cash capital contribution, year one																	$ 26,500,000		$ 26,500,000	$ 26,500,000