PROPERTY, PLANT, AND EQUIPMENT, NET

6 Months Ended

Jun. 30, 2018

Property Plant And Equipment [Abstract]

PROPERTY, PLANT, AND EQUIPMENT, NET

5. PROPERTY, PLANT AND EQUIPMENT, NET

Details on property, plant and equipment follow.

	June 30, 2018		December 31, 2017
	(In thousands)
Gathering and processing systems and related equipment	$	2,023,832	$	1,973,722
Construction in progress		160,239		78,850
Land and line fill		11,735		11,735
Other		41,802		40,262
Total		2,237,608		2,104,569
Less accumulated depreciation		349,849		309,440
Property, plant and equipment, net	$	1,887,759	$	1,795,129

Depreciation expense and capitalized interest follow.

	Three months ended June 30,				Six months ended June 30,
	2018		2017		2018		2017
	(In thousands)
Depreciation expense	$	18,657	$	18,607	$	37,214	$	37,098
Capitalized interest		1,863		450		3,085		918