CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Cash Flows from Operating Activities:
Net income	$ 32,244	$ 39,379
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in earnings of NuStar Energy L.P.	(34,261)	(33,111)
Distributions of equity in earnings from NuStar Energy L.P.	34,261	33,111
Gain related to NuStar Energy L.P.'s issuance of limited partner units	0	(7,767)
Loss (gain) on sale of NuStar Energy L.P. limited partner units in connection with unit-based compensation	665	(253)
(Benefit) provision for deferred income tax	(977)	508
Changes in current assets and liabilities (Note 7)	(4,216)	(7,779)
Decrease in other assets	1,189	0
Increase in long-term receivable from NuStar Energy L.P.	(1,323)	(1,312)
Increase in employee benefit plan liabilities	5,634	6,632
Net cash provided by operating activities	33,216	29,408
Cash Flows from Investing Activities:
Distributions in excess of equity in earnings from NuStar Energy L.P.	8,111	7,228
Investment in NuStar Energy L.P.	(2,105)	(5,080)
Proceeds from sale of NuStar Energy L.P. units in connection with unit-based compensation	4,635	2,248
Net cash provided by investing activities	10,641	4,396
Cash Flows from Financing Activities:
Proceeds from short-term debt borrowings	0	5,200
Repayment of short-term debt	(5,000)	0
Distributions to unitholders	(40,844)	(37,626)
Net cash used in financing activities	(45,844)	(32,426)
Net (decrease) increase in cash and cash equivalents	(1,987)	1,378
Cash and cash equivalents at the beginning of the period	5,304	371
Cash and cash equivalents at the end of the period	$ 3,317	$ 1,749