Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands		3 Months Ended				6 Months Ended
		Jun. 30, 2015		Jun. 30, 2014		Jun. 30, 2015		Jun. 30, 2014
Revenues
Total revenues		$ 416,572		$ 357,381	[1]	$ 804,981		$ 658,630	[1]
Equity income, net	[2],[3]	18,941		13,008	[1]	37,161	[4]	22,259	[1],[4]
Operating expenses
Cost of product	[5]	147,232		122,318	[1]	286,657		217,709	[1]
Operation and maintenance	[5]	70,048		65,440	[1]	138,007		116,534	[1]
General and administrative	[5]	9,442		9,202	[1]	20,789		19,077	[1]
Property and other taxes		8,801		7,316	[1]	17,324		14,550	[1]
Depreciation and amortization		61,485	[6]	44,962	[1]	123,555	[6],[7]	85,857	[1]
Impairments		1,268	[6]	343	[1]	273,892	[6],[7]	1,533	[1],[8]
Total operating expenses		298,276		249,581	[1]	860,224		455,260	[1]
Operating income (loss)		137,237		120,808	[1]	(18,082)		225,629	[1]
Interest income - affiliates	[9]	4,225		4,225	[1]	8,450		8,450	[1]
Interest expense	[10]	(27,604)		(20,864)	[1]	(50,566)		(34,825)	[1]
Other income (expense), net		80		235	[1]	160		731	[1]
Income (loss) before income taxes		113,938		104,404	[1]	(60,038)		199,985	[1]
Income tax (benefit) expense		(1,710)		2,523	[1]	1,706		4,308	[1]
Net income (loss)		115,648		101,881	[1]	(61,744)		195,677	[1]
Net income (loss) attributable to noncontrolling interests		46,716		42,492	[1]	(91,007)		83,126	[1]
Net income (loss) attributable to Western Gas Equity Partners, LP		68,932		59,389	[1]	29,263		112,551	[1]
Limited partners' interest in net income (loss):
Pre-acquisition net (income) loss allocated to Anadarko		0		(4,135)	[1]	(1,742)		(6,800)	[1]
Limited partners' interest in net income (loss)	[11]	68,932		55,254	[1]	27,521		105,751	[1]
Affiliates [Member]
Revenues
Gathering, processing and transportation of natural gas and natural gas liquids		150,221		117,159	[1]	289,626		215,946	[1]
Natural gas, natural gas liquids and drip condensate sales		121,613		159,581	[1]	240,353		282,182	[1]
Other		132		843	[1]	302		1,571	[1]
Total revenues	[3]	271,966		277,583	[1]	530,281		499,699	[1]
Operating expenses
Cost of product	[3]	53,078		38,666		96,990		58,037
Operation and maintenance	[12]	17,496		16,827		32,872		29,378
General and administrative	[13]	7,513		7,090		15,279		14,572
Total operating expenses		78,087		62,583		145,141		101,987
Interest expense	[14]	(4,190)		0		(5,612)		0
Third Parties [Member]
Revenues
Gathering, processing and transportation of natural gas and natural gas liquids		91,234		68,763	[1]	173,484		130,989	[1]
Natural gas, natural gas liquids and drip condensate sales		52,589		9,822	[1]	99,521		25,886	[1]
Other		783		1,213	[1]	1,695		2,056	[1]
Total revenues		144,606		79,798	[1]	274,700		158,931	[1]
Operating expenses
Interest expense		$ (23,414)		$ (20,864)		$ (44,954)		$ (34,825)
Limited Partner [Member]
Limited partners' interest in net income (loss):
Net income (loss) per common unit - basic and diluted		$ 0.31		$ 0.25	[1]	$ 0.13		$ 0.48	[1]
Weighted-average common units outstanding - basic and diluted		218,912		218,903	[1]	218,911		218,903	[1]

[1] Financial information has been recast to include the financial position and results attributable to the DBJV system. See Note 1 and Note 2.

[2] Income earned from equity investments is classified as affiliate. See Note 1.

[3] Represents amounts earned or incurred on and subsequent to the date of acquisition of WES assets, as well as amounts earned or incurred by Anadarko on a historical basis related to WES assets prior to the acquisition of such assets by WES, recognized under gathering, treating or processing agreements, and purchase and sale agreements. See Adjustments to Previously Issued Financial Statements in Note 1.

[4] Income earned on, distributions from and contributions to equity investments are classified as affiliate. See Note 1.

[5] Cost of product includes product purchases from Anadarko (as defined in Note 1) of $53.1 million and $97.0 million for the three and six months ended June 30, 2015, respectively, and $38.7 million and $58.0 million for the three and six months ended June 30, 2014, respectively. Operation and maintenance includes charges from Anadarko of $17.5 million and $32.9 million for the three and six months ended June 30, 2015, respectively, and $16.8 million and $29.4 million for the three and six months ended June 30, 2014, respectively. General and administrative includes charges from Anadarko of $7.5 million and $15.3 million for the three and six months ended June 30, 2015, respectively, and $7.1 million and $14.6 million for the three and six months ended June 30, 2014, respectively. See Note 5.

[6] “As Reported” amounts previously included as a component of Depreciation, amortization and impairments in WGP’s Original Filing.

[7] “As Reported” amounts previously included as a component of Depreciation, amortization and impairments in WGP’s Original Filing.

[8] Financial information has been recast to include the financial position and results attributable to the DBJV system. See Note 1 and Note 2.

[9] Represents interest income recognized on the note receivable from Anadarko.

[10] Includes affiliate (as defined in Note 1) interest expense of $4.2 million and $5.6 million for the three and six months ended June 30, 2015, respectively, and zero for each of the three and six months ended June 30, 2014. See Note 2 and Note 9.

[11] Represents net income (loss) earned on and subsequent to the date of acquisition of WES assets (as defined in Note 1). See Note 4.

[12] Represents expenses incurred on and subsequent to the date of the acquisition of WES assets, as well as expenses incurred by Anadarko on a historical basis related to WES assets prior to the acquisition of such assets by WES.

[13] Represents general and administrative expense incurred on and subsequent to the date of WES’s acquisition of WES assets, as well as a management services fee for reimbursement of expenses incurred by Anadarko for periods prior to the acquisition of WES assets by WES. These amounts include equity-based compensation expense allocated to WES and WGP by Anadarko (see WES LTIP and WGP LTIP and Anadarko Incentive Plans within this Note 5) and amounts charged by Anadarko under the WGP omnibus agreement.

[14] For the three and six months ended June 30, 2015, includes interest expense recognized on the WGP working capital facility (see Note 9) and WES’s accretion expense recognized on the Deferred purchase price obligation - Anadarko for the acquisition of DBJV (see Note 2 and Note 9).