Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash flows provided by operating activities:
Net income	$ 35,098	$ 39
Adjustment to reconcile net income (loss) to net cash provided by operating activities:
Depreciation	29,673	14,764
Equity-based compensation	10,011	3,803
Amortization of deferred financing costs	489
Changes in assets and liabilities:
Accounts receivable-affiliate	(1,029)	(3,214)
Prepaid expenses	309	(39)
Accounts payable	(13)	1,501
Accounts payable-affiliate	50
Accrued ad valorem tax	7,879
Accrued liabilities	1,811	186
Net cash provided by operating activities	84,278	17,040
Cash flows used in investing activities:
Additions to property and equipment	(200,075)	(265,554)
Change in working capital of affiliate related to property and equipment	40,277
Change in other assets	(126)	(37,646)
Net cash used in investing activities	(159,924)	(303,200)
Cash flows provided by (used in) financing activities:
Deemed contribution from parent, net		59,655
Distribution to unitholders	(41,660)
Borrowings on credit facility		228,924
Payments of deferred financing costs	(19)
Payments on capital lease obligations		(459)
Payments for IPO related costs		(1,960)
Net cash provided by (used in) financing activities	(41,679)	286,160
Net decrease in cash and cash equivalents	(117,325)
Cash and cash equivalents, beginning of period	230,192
Cash and cash equivalents, end of period	112,867
Supplemental disclosure of cash flow information:
Cash paid during the period for interest and commitment fees	1,177	999
Supplemental disclosure of noncash investing activities:
Increase (decrease) in accrued capital expenditures and accounts payable for property and equipment	$ (15,399)	$ 26,626