Property, Plant and Equipment (Tables)

9 Months Ended

Sep. 30, 2017

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment Table

A summary of the historical cost of WES’s property, plant and equipment is as follows:

thousands	Estimated Useful Life	September 30, 2017		December 31, 2016
Land	n/a	$	4,271	$	4,012
Gathering systems and processing complexes	3 to 47 years	6,972,302		6,462,053
Pipelines and equipment	15 to 45 years	139,344		139,646
Assets under construction	n/a	434,432		226,626
Other	3 to 40 years	31,829		29,605
Total property, plant and equipment		7,582,178		6,861,942
Accumulated depreciation		2,074,464		1,812,010
Net property, plant and equipment		$	5,507,714	$	5,049,932