Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2017

Summary of Significant Accounting Policies

Schedule of investment in property and equipment

Our investment in property and equipment was as follows as of December 31, 2016 and March 31, 2017 (in thousands):

	Estimated useful lives	December 31, 2016		March 31, 2017
Land	n/a	$	11,338		12,786
Fresh water surface pipelines and equipment	5 years		39,562		40,402
Above ground storage tanks	10 years		4,301		4,301
Fresh water permanent buried pipelines and equipment	20 years		443,453		462,410
Gathering systems and facilities	20 years		1,551,771		1,629,761
Construction-in-progress	n/a		400,096		389,320
Total property and equipment			2,450,521		2,538,980
Less accumulated depreciation			(254,642)		(282,178)
Property and equipment, net		$	2,195,879		2,256,802