CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash Flows from Operating Activities:
Net income	$ 16,992	$ 16,676
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in earnings of NuStar Energy L.P.	(18,112)	(17,015)
Distributions of equity in earnings from NuStar Energy L.P.	18,112	17,015
Gain on sale of NuStar Energy L.P. common limited partner units in connection with unit-based compensation	0	(613)
Unit-based compensation expense	203	114
Amortization of deferred debt costs	42	42
Benefit for deferred income tax	0	(128)
Changes in current assets and liabilities (Note 6)	(362)	(1,991)
Increase in long-term receivable from related party	0	(900)
Increase in long-term liabilities	0	1,183
Net cash provided by operating activities	16,875	14,383
Cash Flows from Investing Activities:
Distributions in excess of equity in earnings from NuStar Energy L.P.	5,965	6,937
Investment in NuStar Energy L.P.	0	(160)
Proceeds from sale of NuStar Energy L.P. common units in connection with unit-based compensation	0	1,319
Net cash provided by investing activities	5,965	8,096
Cash Flows from Financing Activities:
Proceeds from short-term debt borrowings	1,000	4,000
Distributions to unitholders	(23,408)	(23,397)
Other, net	(51)	0
Net cash used in financing activities	(22,459)	(19,397)
Net increase in cash and cash equivalents	381	3,082
Cash and cash equivalents as of the beginning of the period	207	34
Cash and cash equivalents as of the end of the period	$ 588	$ 3,116