Condensed Consolidated Statements of Cash Flows ( Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities:
Net income	$ 45,577	$ 33,572
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	13,019	10,935
Amortization of other deferred charges	2,404	0
Amortization of deferred revenue	(723)	(601)
Amortization of deferred financing costs and debt discount	1,334	830
Accretion of asset retirement obligations	175	146
Deferred income taxes	0	119
Income from equity method investments	(2,757)	(1,421)
Dividends from equity method investments	2,302	278
(Gain) loss on asset disposals	(69)	7
Unit-based compensation expense	302	364
Changes in assets and liabilities:
Accounts receivable	1,132	932
Inventories and other current assets	8,226	2,041
Accounts payable and other current liabilities	(9,123)	1,479
Accounts receivable/payable to related parties	(8,446)	(1,352)
Non-current assets and liabilities, net	(1,710)	(419)
Net cash provided by operating activities	51,643	46,910
Cash flows from investing activities:
Purchase of Big Spring logistics assets, net of assumed ARO liabilities	(72,376)	0
Purchases of property, plant and equipment	(5,949)	(5,867)
Proceeds from sales of property, plant and equipment	356	0
Purchases of intangible assets	(144,219)	0
Distributions from equity method investments	660	501
Equity method investment contributions	(172)	(2,937)
Net cash used in investing activities	(221,700)	(8,303)
Cash flows from financing activities:
Proceeds from issuance of additional units to maintain 2% General Partner interest	13	21
Distributions to general partner	(10,810)	(8,231)
Distributions to common unitholders - public	(13,463)	(12,816)
Distributions to common unitholders - Delek	(22,558)	(20,772)
Distributions to Delek unitholders and general partner related to Big Spring Logistic Assets Acquisition	(98,798)	0
Proceeds from revolving credit facility	517,000	139,400
Payments of revolving credit facility	(203,000)	(377,500)
Proceeds from issuance of senior notes	0	248,112
Deferred financing costs paid	525	5,816
Reimbursement of capital expenditures by Delek	2,700	3,835
Net cash provided by (used in) financing activities	170,559	(33,767)
Net increase in cash and cash equivalents	502	4,840
Cash and cash equivalents at the beginning of the period	4,675	59
Cash and cash equivalents at the end of the period	5,177	4,899
Cash paid during the period for:
Interest	17,890	6,940
Income taxes	2	29
Non-cash investing activities:
Decrease in accrued capital expenditures	(1,529)	(957)
Non-cash financing activities:
Sponsor contribution of fixed assets	$ 0	$ 67