Property, Plant and Equipment (table)

6 Months Ended

Jun. 30, 2014

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment Table

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

thousands	Estimated Useful Life	June 30, 2014		December 31, 2013
Land	n/a	$	2,584	$	2,584
Gathering systems	3 to 47 years	4,123,786		3,673,008
Pipelines and equipment	15 to 45 years	145,799		146,008
Assets under construction	n/a	304,854		405,633
Other	3 to 40 years	14,912		11,867
Total property, plant and equipment		4,591,935		4,239,100
Accumulated depreciation		936,568		855,845
Net property, plant and equipment		$	3,655,367	$	3,383,255