Equity and Partners' Capital (Tables)

9 Months Ended

Sep. 30, 2018

Partners' Capital Notes [Abstract]

Partnership Interests Table

The following table summarizes WES’s units issued during the nine months ended September 30, 2018:

	WES Common Units	WES Class C Units	WES General Partner Units	Total
Balance at December 31, 2017	152,602,105	13,243,883	2,583,068	168,429,056
PIK Class C units	—	801,546	—	801,546
Long-Term Incentive Plan award vestings	7,180	—	—	7,180
Balance at September 30, 2018	152,609,285	14,045,429	2,583,068	169,237,782