Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Revenues
Total revenues	$ 375,094		$ 293,717	[1]
Equity income, net	18,220	[2],[3],[4]	9,251	[1],[2],[3],[4]
Operating expenses
Cost of product	137,920	[5]	94,376	[1],[5]
Operation and maintenance	56,149	[5]	44,577	[1],[5]
General and administrative	11,347	[5]	9,875	[1],[5]
Property and other taxes	8,523		7,234	[1]
Depreciation, amortization and impairments	70,292		42,085	[1]
Total operating expenses	284,231		198,147	[1]
Operating income	109,083		104,821	[1]
Interest income - affiliates	4,225	[6]	4,225	[1],[6]
Interest expense	(22,962)	[7]	(13,961)	[1],[7]
Other income (expense), net	80		496	[1]
Income before income taxes	90,426		95,581	[1]
Income tax (benefit) expense	4,460		1,785	[1]
Net income	85,966		93,796	[1]
Net income attributable to noncontrolling interests	28,937		40,634	[1]
Net income attributable to Western Gas Equity Partners, LP	57,029		53,162	[1]
Limited partners' interest in net income:
Pre-acquisition net (income) loss allocated to Anadarko	(1,742)		(2,665)	[1]
Limited partners' interest in net income	55,287	[8]	50,497	[1],[8]
Affiliated Entity [Member]
Revenues
Gathering, processing and transportation of natural gas and natural gas liquids	128,309		92,683	[1]
Natural gas, natural gas liquids and drip condensate sales	117,236		121,585	[1]
Other	170		728	[1]
Total revenues	245,715	[2]	214,996	[1],[2]
Operating expenses
Cost of product	42,407	[2]	18,356	[2]
Operation and maintenance	15,376	[9]	12,551	[9]
General and administrative	7,766	[10]	7,482	[10]
Total operating expenses	65,549		38,389
Interest expense	(1,422)	[11]	0	[11]
Third Parties [Member]
Revenues
Gathering, processing and transportation of natural gas and natural gas liquids	81,535		61,814	[1]
Natural gas, natural gas liquids and drip condensate sales	46,932		16,064	[1]
Other	912		843	[1]
Total revenues	129,379		78,721	[1]
Operating expenses
Interest expense	$ (21,540)		$ (13,961)
Limited Partner [Member]
Limited partners' interest in net income:
Net income per common unit - basic and diluted	$ 0.25		$ 0.23	[1]
Weighted-average common units outstanding - basic and diluted	218,910		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] 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.

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

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

[5] Cost of product includes product purchases from Anadarko (as defined in Note 1) of $42.4 million and $18.4 million for the three months ended March 31, 2015 and 2014, respectively. Operation and maintenance includes charges from Anadarko of $15.4 million and $12.6 million for the three months ended March 31, 2015 and 2014, respectively. General and administrative includes charges from Anadarko of $7.8 million, and $7.5 million for the three months ended March 31, 2015 and 2014, respectively. See Note 5.

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

[7] Includes affiliate (as defined in Note 1) interest expense of $1.4 million and zero for the three months ended March 31, 2015 and 2014, respectively. See Note 2 and Note 9.

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

[9] 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.

[10] 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.

[11] For the three months ended March 31, 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).