Consolidated Balance Sheets - WES Operating - USD ($) $ in Thousands		Dec. 31, 2019	Dec. 31, 2018
Current assets
Cash and cash equivalents		$ 99,962	$ 92,142
Accounts receivable, net	[1]	260,512	221,164
Other current assets	[2]	41,938	31,458
Total current assets		402,412	344,764
Note receivable - Anadarko		260,000	260,000
Property, plant, and equipment
Cost		12,355,671	11,258,773
Less accumulated depreciation		3,290,740	2,848,420
Net property, plant, and equipment		9,064,931	8,410,353
Goodwill		445,800	445,800
Other intangible assets		809,391	841,408
Equity investments		1,285,717	1,092,088
Other assets	[3]	78,202	62,792
Total assets		12,346,453	11,457,205
Current liabilities
Accounts and imbalance payables		293,128	443,343
Short-term debt	[4]	7,873	28,000
Accrued ad valorem taxes		35,160	36,986
Accrued liabilities	[5]	149,793	129,148
Total current liabilities		485,954	637,477
Long-term liabilities
Long-term debt		7,951,565	4,787,381
APCWH Note Payable	[6]	0	427,493
Deferred income taxes		18,899	280,017
Asset retirement obligations		336,396	300,024
Other liabilities	[7]	208,346	132,130
Total long-term liabilities		8,515,206	5,927,045
Total liabilities		9,001,160	6,564,522
Equity and partners' capital
Common units and Class C units		3,209,947	951,888
General partner units (zero and 2,583,068 units issued and outstanding at December 31, 2019 and 2018, respectively)	[8]	(14,224)	0
Net investment by Anadarko		0	1,388,018
Total partners' capital		3,195,723	2,339,906
Noncontrolling interest		149,570	2,552,777
Total equity and partners' capital		3,345,293	4,892,683
Total liabilities, equity and partners' capital		12,346,453	11,457,205
WES Operating [Member]
Current assets
Cash and cash equivalents		98,122	90,448
Accounts receivable, net	[9]	260,748	221,373
Other current assets	[10]	39,914	30,583
Total current assets		398,784	342,404
Note receivable - Anadarko		260,000	260,000
Property, plant, and equipment
Cost		12,355,671	11,258,773
Less accumulated depreciation		3,290,740	2,848,420
Net property, plant, and equipment		9,064,931	8,410,353
Goodwill		445,800	445,800
Other intangible assets		809,391	841,408
Equity investments		1,285,717	1,092,088
Other assets	[11]	78,202	62,792
Total assets		12,342,825	11,454,845
Current liabilities
Accounts and imbalance payables		293,128	443,343
Short-term debt	[12]	7,873	0
Accrued ad valorem taxes		35,160	36,986
Accrued liabilities	[13]	149,639	127,874
Total current liabilities		485,800	608,203
Long-term liabilities
Long-term debt		7,951,565	4,787,381
APCWH Note Payable	[14]	0	427,493
Deferred income taxes		18,899	280,017
Asset retirement obligations		336,396	300,024
Other liabilities	[15]	208,346	132,130
Total long-term liabilities		8,515,206	5,927,045
Total liabilities		9,001,006	6,535,248
Equity and partners' capital
General partner units (zero and 2,583,068 units issued and outstanding at December 31, 2019 and 2018, respectively)	[16]	0	206,862
Net investment by Anadarko		0	1,388,018
Total partners' capital		3,286,620	4,861,830
Noncontrolling interest		55,199	57,767
Total equity and partners' capital		3,341,819	4,919,597
Total liabilities, equity and partners' capital		12,342,825	11,454,845
WES Operating [Member] | Common Units [Member]
Equity and partners' capital
Common units and Class C units		3,286,620	2,475,540
WES Operating [Member] | Class C Units [Member]
Equity and partners' capital
Common units and Class C units	[16]	$ 0	$ 791,410

[1] Accounts receivable, net includes amounts receivable from affiliates (as defined in Note 1) of $113.3 million and $72.6 million as of December 31, 2019 and 2018, respectively.

[2] Other current assets includes affiliate amounts of $5.0 million and $3.7 million as of December 31, 2019 and 2018, respectively.

[3] Other assets includes affiliate amounts of $60.2 million and $42.2 million as of December 31, 2019 and 2018, respectively. Other assets also includes $4.5 million and $5.3 million of NGLs line fill as of December 31, 2019 and 2018, respectively.

[4] As of December 31, 2019, all amounts are considered affiliate. See Note 14.

[5] Accrued liabilities includes affiliate amounts of $3.1 million and $2.2 million as of December 31, 2019 and 2018, respectively.

[6] See Note 1 and Note 6.

[7] Other liabilities includes affiliate amounts of $97.8 million and $47.8 million as of December 31, 2019 and 2018, respectively.

[8] See Note 1.

[9] Accounts receivable, net includes amounts receivable from affiliates (as defined in Note 1) of $113.6 million and $72.8 million as of December 31, 2019 and 2018, respectively.

[10] Other current assets includes affiliate amounts of $5.0 million and $3.7 million as of December 31, 2019 and 2018, respectively.

[11] Other assets includes affiliate amounts of $60.2 million and $42.2 million as of December 31, 2019 and 2018, respectively. Other assets also includes $4.5 million and $5.3 million of NGLs line fill as of December 31, 2019 and 2018, respectively.

[12] As of December 31, 2019, all amounts are considered affiliate. See Note 14.

[13] Accrued liabilities includes affiliate amounts of $3.1 million and $2.2 million as of December 31, 2019 and 2018, respectively.

[14] See Note 1 and Note 6.

[15] Other liabilities includes affiliate amounts of $97.8 million and $47.8 million as of December 31, 2019 and 2018, respectively.

[16] Immediately prior to the closing of the Merger (as defined in Note 1), all outstanding general partner units converted into a non-economic general partner interest in WES Operating and WES Operating common units and all outstanding Class C units converted into WES Operating common units on a one-for-one basis.