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Document and Entity Information - shares	6 Months Ended
Document and Entity Information - shares	Jun. 30, 2012	Jul. 31, 2012
Entity Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2012
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q2
Trading Symbol	ns
Entity Registrant Name	NuStar Energy L.P.
Entity Central Index Key	0001110805
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		70,756,078

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 34,147	$ 17,497
Accounts receivable, net of allowance for doubtful accounts of $1,657 and $2,147 as of June 30, 2012 and December 31, 2011, respectively	487,565	547,808
Inventories	253,610	587,785
Income tax receivable	1,952	4,148
Other current assets	85,872	43,685
Assets held for sale	640,959	0
Total current assets	1,504,105	1,200,923
Property, plant and equipment, at cost	4,058,542	4,413,305
Accumulated depreciation and amortization	(979,111)	(982,837)
Property, plant and equipment, net	3,079,431	3,430,468
Intangible assets, net	28,226	38,923
Goodwill	822,701	846,717
Investment in joint venture	68,188	66,687
Deferred income tax asset	0	9,141
Other long-term assets, net	214,947	288,331
Total assets	5,717,598	5,881,190
Current liabilities:
Current portion of long-term debt	517,880	364,959
Accounts payable	423,227	454,326
Payable to related party	17,562	6,735
Accrued interest payable	27,645	29,833
Accrued liabilities	119,768	71,270
Taxes other than income tax	14,335	13,455
Income tax payable	2,517	3,222
Total current liabilities	1,122,934	943,800
Long-term debt, less current portion	2,106,988	1,928,071
Long-term payable to related party	15,141	14,502
Deferred income tax liability	31,596	35,437
Other long-term liabilities	19,822	95,045
Commitments and contingencies (Note 6)
Partners' equity:
Limited partners (70,756,078 common units outstanding as of June 30, 2012 and December 31, 2011)	2,426,602	2,817,069
General partner	54,175	62,539
Accumulated other comprehensive income (loss)	(72,508)	(27,407)
Total NuStar Energy L.P. partners' equity	2,408,269	2,852,201
Noncontrolling interest	12,848	12,134
Total partners’ equity	2,421,117	2,864,335
Total liabilities and partners' equity	$ 5,717,598	$ 5,881,190

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2012	Dec. 31, 2011
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 1,657	$ 2,147
Common units outstanding	70,756,078	70,756,078

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2012 USD ($) $ / shares shares	Jun. 30, 2011 USD ($) $ / shares shares	Jun. 30, 2012 USD ($) $ / shares shares	Jun. 30, 2011 USD ($) $ / shares shares
Service revenues:
Third parties	$ 207,794	$ 199,208	$ 413,242	$ 397,471
Related party	788	407	1,485	537
Total service revenues	208,582	199,615	414,727	398,008
Product sales	1,693,323	1,389,569	3,222,870	2,425,792
Total revenues	1,901,905	1,589,184	3,637,597	2,823,800
Costs and expenses:
Cost of product sales	1,661,189	1,269,448	3,151,026	2,261,815
Operating expenses:
Third parties	98,162	97,825	184,896	182,955
Related party	37,101	36,801	76,033	71,910
Total operating expenses	135,263	134,626	260,929	254,865
General and administrative expenses:
Third parties	9,775	10,084	17,793	19,119
Related party	13,360	16,035	32,529	32,983
Total general and administrative expenses	23,135	26,119	50,322	52,102
Depreciation and amortization expense	45,576	41,640	90,257	81,936
Asset impairment loss	249,646	0	249,646	0
Goodwill impairment loss	22,132	0	22,132	0
Gain on legal settlement	(28,738)	0	(28,738)	0
Total costs and expenses	2,108,203	1,471,833	3,795,574	2,650,718
Operating income (loss)	(206,298)	117,351	(157,977)	173,082
Equity in earnings of joint venture	2,381	2,010	4,767	4,398
Interest expense, net	(23,820)	(20,622)	(46,170)	(41,079)
Other income (expense), net	(2,812)	(967)	(1,444)	(6,466)
Income (loss) before income tax expense	(230,549)	97,772	(200,824)	129,935
Income tax expense	16,261	5,167	19,732	8,814
Net income (loss)	(246,810)	92,605	(220,556)	121,121
Less net income (loss) attributable to noncontrolling interest	(73)	6	(170)	20
Net income (loss) attributable to NuStar Energy L.P.	$ (246,737)	$ 92,599	$ (220,386)	$ 121,101
Net income (loss) per unit applicable to limited partners (Note 12) \| $ / shares	(3.56)	1.27	(3.33)	1.57
Weighted-average limited partner units outstanding \| shares	70,756,078	64,610,549	70,756,078	64,610,549
Comprehensive income (loss)	$ (254,001)	$ 59,999	$ (264,773)	$ 100,498
Less comprehensive income (loss) attributable to noncontrolling interest	(308)	(821)	714	(255)
Comprehensive income (loss) attributable to NuStar Energy L.P.	$ (253,693)	$ 60,820	$ (265,487)	$ 100,753

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Cash Flows from Operating Activities:
Net income (loss)	$ (220,556)	$ 121,121
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization expense	90,257	81,936
Amortization of debt related items	(4,652)	(4,690)
Asset and goodwill impairment loss	271,778	0
Gain on legal settlement	(28,738)	0
Deferred income tax expense (benefit)	5,054	1,487
Equity in earnings of joint venture	(4,767)	(4,398)
Distributions of equity in earnings of joint venture	3,266	6,729
Changes in current assets and current liabilities (Note 13)	(76,088)	(201,736)
Other, net	(3,436)	1,375
Net cash provided by (used in) operating activities	32,118	1,824
Cash Flows from Investing Activities:
Reliability capital expenditures	(12,718)	(20,573)
Strategic capital expenditures	(198,421)	(135,821)
Acquisitions	0	(100,448)
Investment in other long-term assets	(2,286)	(5,580)
Proceeds from sale or disposition of assets	31,006	289
Net cash used in investing activities	(182,419)	(262,133)
Cash Flows from Financing Activities:
Proceeds from long-term debt borrowings	1,361,798	585,764
Proceeds from short-term debt borrowings	71,880	31,600
Proceeds from senior note offering, net of issuance costs	247,408	0
Long-term debt repayments	(1,259,878)	(225,993)
Short-term debt repayments	(71,880)	(31,600)
Distributions to unitholders and general partner	(178,152)	(159,232)
Proceeds from (payments for) termination of interest rate swaps	(5,678)	9,112
Other, net	(408)	(2,811)
Net cash provided by financing activities	165,090	206,840
Effect of foreign exchange rate changes on cash	1,861	1,224
Net increase (decrease) in cash and cash equivalents	16,650	(52,245)
Cash and cash equivalents as of the beginning of the period	17,497	181,121
Cash and cash equivalents as of the end of the period	$ 34,147	$ 128,876

ORGANIZATION AND BASIS OF PRESENTATION	6 Months Ended
ORGANIZATION AND BASIS OF PRESENTATION	Jun. 30, 2012
ORGANIZATION AND BASIS OF PRESENTATION [Abstract]
ORGANIZATION AND BASIS OF PRESENTATION	ORGANIZATION AND BASIS OF PRESENTATION Organization and Operations NuStar Energy L.P. (NuStar Energy) (NYSE: NS) is engaged in the terminalling and storage of petroleum products, the transportation of petroleum products and anhydrous ammonia, and petroleum refining and marketing. Unless otherwise indicated, the terms “NuStar Energy,” “the Partnership,” “we,” “our” and “us” are used in this report to refer to NuStar Energy L.P., to one or more of our consolidated subsidiaries or to all of them taken as a whole. NuStar GP Holdings, LLC (NuStar GP Holdings) (NYSE: NSH) owns our general partner, Riverwalk Logistics, L.P., and owns a 16.2% total interest in us as of June 30, 2012. We conduct our operations through our subsidiaries, primarily NuStar Logistics, L.P. (NuStar Logistics) and NuStar Pipeline Operating Partnership L.P. (NuPOP). We have three business segments: storage, transportation, and asphalt and fuels marketing. Basis of Presentation These unaudited condensed consolidated financial statements include the accounts of the Partnership and subsidiaries in which the Partnership has a controlling interest. Noncontrolling interests are separately disclosed on the financial statements. Inter-partnership balances and transactions have been eliminated in consolidation. We account for investments in 50% or less-owned entities using the equity method. These unaudited condensed consolidated financial statements have been prepared in accordance with United States generally accepted accounting principles (GAAP) for interim financial information and with the instructions to the Quarterly Report on Form 10-Q and Article 10 of Regulation S-X of the Securities Exchange Act of 1934. Accordingly, they do not include all of the information and notes required by GAAP for complete consolidated financial statements. In the opinion of management, all adjustments considered necessary for a fair presentation have been included, and all disclosures are adequate. All such adjustments are of a normal recurring nature unless disclosed otherwise. Financial information for the three and six months ended June 30, 2012 and 2011 included in these Condensed Notes to Consolidated Financial Statements is derived from our unaudited condensed consolidated financial statements. Operating results for the three and six months ended June 30, 2012 are not necessarily indicative of the results that may be expected for the year ending December 31, 2012. The consolidated balance sheet as of December 31, 2011 has been derived from the audited consolidated financial statements as of that date. These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2011.

- Definition

The entire disclosure for organization, consolidation and basis of presentation of financial statements disclosure.

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+ Details

ASSETS HELD FOR SALE AND ASSET IMPAIRMENTS

6 Months Ended

Jun. 30, 2012

ASSETS HELD FOR SALE AND ASSET IMPAIRMENTS [Abstract]

ASSETS HELD FOR SALE AND ASSET IMPAIRMENTS [Text Block]

ASSETS HELD FOR SALE AND ASSET IMPAIRMENTS

Asphalt Operations. On July 3, 2012, we entered into an agreement with an affiliate of Lindsay Goldberg LLC (Lindsay Goldberg), a private investment firm, to create a joint venture that will own and operate NuStar Energy’s asphalt refining assets, including the asphalt refineries located in Paulsboro, New Jersey and Savannah, Georgia (collectively, the Asphalt Operations). NuStar Energy and Lindsay Goldberg will each have a 50% voting interest in NuStar Asphalt LLC (Asphalt JV), currently a wholly owned subsidiary of NuStar Energy, which was formed for the purpose of entering into this joint venture and which will own all the assets of the Asphalt Operations. Lindsay Goldberg will pay $175.0 million for the Class A equity interests (Class A Interests) of Asphalt JV, while we will retain the Class B equity interests (Class B Interests) of Asphalt JV. The Class A Interests will have a distribution preference over the Class B Interests, as well as a liquidation preference.

At the time of closing, Asphalt JV will purchase the inventory of the Asphalt Operations from NuStar Energy at market prices. Asphalt JV intends to fund the purchase of those inventories with proceeds from borrowings under a third-party asset-based revolving credit facility (Third-Party Financing) and an unsecured revolving credit facility provided by NuStar Energy (NuStar Facility). The NuStar Facility will also be available to fund working capital needs of Asphalt JV in an aggregate principal amount not to exceed $250.0 million for a term of seven years. In addition, during the term of the NuStar Facility, NuStar Energy has agreed to provide guarantees or credit support, as applicable, of up to $150.0 million for operating contracts assumed by Asphalt JV related to the Asphalt Operations. NuStar Energy also expects to enter into an administrative services agreement, a terminal lease agreement and a crude oil supply agreement with Asphalt JV.

This transaction is expected to close in the third quarter of 2012, subject to the consummation of the Third-Party Financing and the NuStar Facility, as well as the satisfaction of certain other customary closing conditions, such as regulatory approval. Upon closing, we expect to deconsolidate Asphalt JV and prospectively report our remaining investment in Asphalt JV using the equity method of accounting. Therefore, as of June 30, 2012, we have presented the assets related to the Asphalt Operations as “Assets held for sale” on the consolidated balance sheet. Because of our expected continued involvement with Asphalt JV discussed above, we have not presented the results of operations for the Asphalt Operations as discontinued operations.

Asset Impairments. In connection with our expected sale of 50% of Asphalt JV, we evaluated the goodwill and other long-lived assets associated with the Asphalt Operations for potential impairment. As of June 30, 2012, we estimated the fair value of the Asphalt Operations reporting unit as the sum of (i) the purchase price to be paid by Lindsay Goldberg for the Class A Interests of Asphalt JV, (ii) the fair value of the Class B Interests of Asphalt JV that we would retain and (iii) the fair value of the working capital, primarily inventory. We determined the fair value of the Class B Interests using a combination of estimated discounted future cash flows and a pricing model. The fair value of the working capital was based on estimated current market prices. The estimated fair value of the Asphalt Operations reporting unit was less than its carrying value, which resulted in the recognition of a goodwill impairment loss of $22.1 million in the second quarter of 2012. In addition, in the second quarter of 2012, we recorded an asset impairment loss of $244.2 million in order to write-down the carrying value of long-lived assets related to the Asphalt Operations, including fixed assets, intangible assets and other long-term assets to their estimated fair value. The goodwill impairment loss and the asset impairment loss related to the Asphalt Operations is reported in the asphalt and fuels marketing segment.

In the second quarter of 2012, we reduced the carrying value of the fixed assets of one of our refined product terminals to its estimated fair value and recorded an asset impairment loss of $2.1 million. The impairment loss resulted from changing market conditions that reduced the estimated cash flows for that terminal. The impairment loss associated with this refined product terminal was reported in the storage segment. In addition, we recorded an asset impairment loss of $3.3 million in the second quarter of 2012 in order to reduce the carrying value of certain corporate assets we intend to sell to their estimated sales price.

The total asset impairment loss consisted of the following:



	Three and Six Months Ended June 30, 2012
	(Thousands of Dollars)
Asphalt Operations
Property, plant and equipment, net	$	232,759
Intangible assets, net	6,564
Other long-term assets, net	4,902
Asset impairment loss	244,225

Other
Property, plant and equipment, net	5,421
Total asset impairment loss	$	249,646

Assets Held for Sale. As of June 30, 2012, we reclassified the assets of the Asphalt Operations and certain corporate assets we intend to sell as “Assets held for sale” on the consolidated balance sheet. The total assets held for sale consisted of the following:



	June 30, 2012
	(Thousands of Dollars)
Asphalt Operations
Inventories	$	410,977
Other current assets	135
Property, plant and equipment, net	204,946
Other long-term assets, net	22,054
Assets held for sale	638,112

Other
Property, plant and equipment, net	2,847
Total assets held for sale	$	640,959

DISPOSITIONS	6 Months Ended
DISPOSITIONS	Jun. 30, 2012
DISPOSITIONS [Abstract]
DISPOSITIONS	DISPOSITIONS On April 16, 2012, we sold five terminals in Georgia and Alabama with an aggregate storage capacity of 1.8 million barrels for total proceeds of $30.8 million.

- Definition

The entire disclosure for the facts and circumstances leading to the completed or expected disposal, manner and timing of disposal, the gain (loss) recognized in the income statement and the income statement caption that includes that gain (loss), amounts of revenues and pretax profit or loss reported in discontinued operations, the segment in which the disposal group was reported, and the classification (whether sold or classified as held for sale) and carrying value of the assets and liabilities comprising the disposal group. Includes all disposal groups, including those classified as components of the entity (discontinued operations).

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+ Details

INVENTORIES

6 Months Ended

Jun. 30, 2012

INVENTORIES [Abstract]

INVENTORIES

Inventories consisted of the following:



	June 30, 2012		December 31, 2011
	(Thousands of Dollars)
Crude oil	$	23,013	$	157,297
Finished products	223,608		421,288
Materials and supplies	6,989		9,200
Total	$	253,610	$	587,785

DEBT	6 Months Ended
DEBT	Jun. 30, 2012
DEBT [Abstract]
DEBT	DEBT Revolving Credit Agreements On May 2, 2012, NuStar Logistics replaced the $1.2 billion five-year revolving credit agreement (the 2007 Revolving Credit Agreement) with a new $1.5 billion five-year revolving credit agreement (the 2012 Revolving Credit Agreement), which includes the ability to borrow up to the equivalent of $250.0 million in Euros. NuStar Logistics used borrowings of $588.6 million under the 2012 Revolving Credit Agreement and cash on hand to repay in full the balance on the 2007 Revolving Credit Agreement. Obligations under the 2012 Revolving Credit Agreement are guaranteed by NuStar Energy and NuPOP. NuPOP will be released from its guarantee of the 2012 Revolving Credit Agreement when it no longer guarantees NuStar Logistics public debt instruments. The 2012 Revolving Credit Agreement contains customary restrictive covenants, including requiring us to maintain, as of the end of each rolling period, consisting of any period of four consecutive fiscal quarters, a consolidated debt coverage ratio (consolidated indebtedness to consolidated EBITDA, as defined in the 2012 Revolving Credit Agreement) not to exceed 5.00-to-1.00; provided, for the rolling period ending June 30th of each year, the maximum consolidated debt coverage ratio will increase to 5.50-to-1.00. Moreover, if we consummate an acquisition for an aggregate net consideration of at least $50.0 million, the maximum consolidated debt coverage ratio will increase to 5.50-to-1.00 for two rolling periods. On June 29, 2012, we amended the 2012 Revolving Credit Agreement to permit unlimited investments in joint ventures and unconsolidated subsidiaries, provided that no default exists, and to modify the consolidated debt coverage ratio to include up to 20% of cash distributions for such joint ventures and unconsolidated subsidiaries (the Amendment). In addition, the Amendment provides that we will be in compliance with the consolidated debt coverage ratio as long as it does not exceed 6.50-to-1.00 for the rolling period ended June 30, 2012 or 6.00-to-1.00 for the rolling period ending September 30, 2012. However, the consolidated debt coverage ratio will revert to a maximum of 5.00-to-1.00 for any four consecutive quarters, if our Asphalt Operations are owned by an unconsolidated joint venture. The requirement not to exceed a maximum consolidated debt coverage ratio may limit the amount we can borrow under the 2012 Revolving Credit Agreement to an amount less than the total amount available for borrowing. As of June 30, 2012, our consolidated debt coverage ratio was 6.0x, and we had $668.4 million available for borrowing. During the six months ended June 30, 2012, we borrowed an aggregate $1,332.9 million under our revolving credit agreements to fund working capital requirements, our capital expenditures and distributions. Additionally, we repaid $1,009.9 million during the six months ended June 30, 2012 under our revolving credit agreements. These borrowings and repayments include borrowings under the 2012 Revolving Credit Agreement to pay down the 2007 Revolving Credit Agreement. The 2012 Revolving Credit Agreement bears interest, at our option, based on either an alternative base rate or a LIBOR-based rate. The interest rate on the 2012 Revolving Credit Agreement is subject to adjustment if our debt rating is downgraded (or subsequently upgraded) by certain credit rating agencies. As of June 30, 2012, our weighted average borrowing interest rate was 1.9%. UK Term Loan On June 29, 2012, our UK subsidiary, NuStar Terminals Limited, amended the £21.0 million amended and restated term loan agreement (the UK Term Loan) to be consistent with the covenant terms of the 2012 Revolving Credit Agreement. As a result of this amendment to the UK Term Loan, the covenants and ratios of the UK Term Loan are substantially the same as the 2012 Revolving Credit Agreement, as amended. NuStar Logistics’ 4.75% Senior Notes On February 2, 2012, NuStar Logistics issued $250.0 million of 4.75% senior notes under our May 13, 2010 shelf registration statement. The net proceeds of $247.4 million were used to repay the outstanding principal amount of NuPOP’s 7.75% senior notes due February 15, 2012. The interest on the 4.75% senior notes is payable semi-annually in arrears on February 1 and August 1 of each year beginning on August 1, 2012. The notes will mature on February 1, 2022. The 4.75% senior notes do not have sinking fund requirements. These notes rank equally with existing senior unsecured indebtedness of NuStar Logistics and contain restrictions on NuStar Logistics’ ability to incur secured indebtedness unless the same security is also provided for the benefit of holders of the senior notes. In addition, the senior notes limit NuStar Logistics’ ability to incur indebtedness secured by certain liens and to engage in certain sale-leaseback transactions. At the option of NuStar Logistics, the 4.75% senior notes may be redeemed in whole or in part at any time at a redemption price, which includes a make-whole premium, plus accrued and unpaid interest to the redemption date. The 4.75% senior notes are fully and unconditionally guaranteed by NuStar Energy and NuPOP. Gulf Opportunity Zone Revenue Bonds In 2008, 2010 and 2011, the Parish of St. James, Louisiana issued, pursuant to the Gulf Opportunity Zone Act of 2005, tax-exempt revenue bonds (GoZone Bonds) associated with our St. James terminal expansions. The GoZone Bonds bear interest based on a weekly tax-exempt bond market interest rate, and we pay interest monthly. The interest rate was 0.2% as of June 30, 2012. The proceeds are deposited with a trustee and disbursed to us upon our request for reimbursement of expenditures related to our St. James terminal expansions. We include the amount remaining in trust related to the GoZone Bonds in “Other long-term assets, net,” and the amount of bonds issued in “Long-term debt, less current portion” on the consolidated balance sheets. For the six months ended June 30, 2012, we received $34.5 million from the trustee. As of June 30, 2012, the amount remaining in trust totaled $138.9 million. Subsequent Events NuStar Logistics’ 6.875% Senior Notes. In July 2012, we repaid the $100.0 million of 6.875% senior notes due July 15, 2012 with borrowings under our 2012 Revolving Credit Agreement. As the senior notes were refinanced using long-term debt, the $100.0 million principal balance was moved from “Current portion of long-term debt” to “Long-term debt, less current portion” in our consolidated balance sheet as of June 30, 2012. Line of Credit. On July 2, 2012, our short-term line of credit that had an uncommitted borrowing capacity of up to $20.0 million was terminated. During the six months ended June 30, 2012, we borrowed and repaid $71.9 million related to this line of credit. Credit Ratings. The interest rates on the 2012 Revolving Credit Agreement and NuStar Logistics’ $350.0 million of 7.65% senior notes are subject to adjustment if our debt rating is downgraded (or subsequently upgraded) by certain credit rating agencies. In July 2012, Standard & Poor’s lowered our credit rating to BB+ from BBB- and revised the outlook to Stable. The interest rates applicable to the 2012 Revolving Credit Agreement do not adjust unless both Moody’s and Standard & Poor’s change their ratings. However, the downgrade by Standard & Poor’s caused the interest rate on NuStar Logistics’ $350.0 million of 7.65% senior notes to increase by 0.25%. This downgrade may also require us to provide additional credit support for certain contracts.

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

+ References + Details

COMMITMENTS AND CONTINGENCIES	6 Months Ended
COMMITMENTS AND CONTINGENCIES	Jun. 30, 2012
COMMITMENTS AND CONTINGENCIES [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES Contingencies We have contingent liabilities resulting from various litigation, claims and commitments, as discussed below. We record accruals for loss contingencies when losses are considered probable and can be reasonably estimated. Legal fees associated with defending the Partnership in legal matters are expensed as incurred. As of June 30, 2012, we have accrued $13.3 million for contingent losses. The amount that will ultimately be paid related to these matters may differ from the recorded accruals, and the timing of such payments is uncertain. Grace Energy Corporation Matter. In 1997, Grace Energy Corporation (Grace Energy) sued subsidiaries of Kaneb Pipeline Partners, L.P. (KPP) and Kaneb Services LLC (KSL and collectively with KPP and their respective subsidiaries, Kaneb) in Texas state court. We acquired Kaneb on July 1, 2005. The complaint sought recovery of the cost of remediation of fuel leaks in the 1970s from a pipeline that had once connected a former Grace Energy terminal with Otis Air Force Base in Massachusetts (Otis AFB). Grace Energy alleges the Otis AFB pipeline and related environmental liabilities had been transferred in 1978 to an entity that was part of Kaneb’s acquisition of Support Terminal Services, Inc. and its subsidiaries from Grace Energy in 1993. Kaneb contends that it did not acquire the Otis AFB pipeline and never assumed any responsibility for any associated environmental damage. In 2000, the court entered final judgment that: (i) Grace Energy could not recover its own remediation costs of $3.5 million, (ii) Kaneb owned the Otis AFB pipeline and its related environmental liabilities and (iii) Grace Energy was awarded $1.8 million in attorney costs. Both Kaneb and Grace Energy appealed the final judgment of the trial court to the Texas Court of Appeals in Dallas. In 2001, Grace Energy filed a petition in bankruptcy, which created an automatic stay of actions against Grace Energy. In September 2008, Grace Energy filed its Joint Plan of Reorganization and Disclosure Statement. The Otis AFB is a part of a Superfund Site pursuant to the Comprehensive Environmental Response Compensation and Liability Act (CERCLA). The site contains a number of groundwater contamination plumes, two of which are allegedly associated with the Otis AFB pipeline. Relying on the final judgment of the Texas state court assigning ownership of the Otis AFB pipeline to Kaneb, the United States Department of Justice (the DOJ) advised Kaneb in 2001 that it intends to seek reimbursement from Kaneb for the remediation costs associated with the two plumes. In November 2008, the DOJ forwarded information to us indicating that the past and estimated future remediation expenses associated with one plume are $71.9 million. We reached an agreement to settle the claims of the United States government with respect to the Otis AFB pipeline and to resolve the underlying dispute between Kaneb and Grace. The settlement was approved by the United States Bankruptcy Court for the District of Delaware and a consent decree was entered by the United States District Court for the District of Massachusetts. Pursuant to the terms of the settlement, we paid approximately $13.1 million to the United States government in July 2012 and received releases of claims from various private parties and a covenant not to sue from the United States government. In connection with the settlement, we recognized a gain of $28.7 million during the second quarter of 2012. Other We are a party to additional claims and legal proceedings arising in the ordinary course of business. Due to the inherent uncertainty of litigation, there can be no assurance that the resolution of any particular claim or proceeding would not have a material adverse effect on our results of operations, financial position or liquidity.

- Definition

The entire disclosure for commitments and contingencies.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 14
-Paragraph 3
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 9, 10, 11, 12
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.25)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-URI http://asc.fasb.org/extlink&oid=6449706&loc=d3e16207-108621

+ Details

FAIR VALUE MEASUREMENTS

6 Months Ended

Jun. 30, 2012

FAIR VALUE MEASUREMENTS [Abstract]

FAIR VALUE MEASUREMENTS

We segregate the inputs used in measuring fair value into three levels: Level 1, defined as observable inputs such as quoted prices in active markets; Level 2, defined as inputs other than quoted prices in active markets that are either directly or indirectly observable; and Level 3, defined as unobservable inputs in which little or no market data exists. We consider counterparty credit risk and our own credit risk in the determination of all estimated fair values.

Recurring Fair Value Measurements

Product Imbalances. We value our assets and liabilities related to product imbalances using quoted market prices in active markets as of the reporting date.

Interest Rate Swaps. We estimate the fair value of both our fixed-to-floating and forward-starting interest rate swaps using discounted cash flows, which use observable inputs such as time to maturity and market interest rates.

Commodity Derivatives. We base the fair value of certain of our commodity derivative instruments on quoted prices on an exchange; accordingly, we include these in Level 1 of the fair value hierarchy. We also have derivative instruments for which we determine fair value using industry pricing services and other observable inputs, such as quoted prices on an exchange for similar derivative instruments. Therefore, we include these derivative instruments in Level 2 of the fair value hierarchy. We have consistently applied these valuation techniques in all periods presented. See Note 8. Derivatives and Risk Management Activities for a discussion of our derivative instruments.

The following assets and liabilities are measured at fair value:



	June 30, 2012
	Level 1			Level 2			Level 3		Total
	(Thousands of Dollars)
Other current assets:
Product imbalances	$	448		$	—		$	—	$	448
Commodity derivatives	44,605			1,270			—		45,875
Other long-term assets, net:
Commodity derivatives	—			9,096			—		9,096
Accrued liabilities:
Product imbalances	(450		)	—			—		(450		)
Commodity derivatives	(26,790		)	(10,347		)	—		(37,137		)
Interest rate swaps	—			(37,291		)	—		(37,291		)
Other long-term liabilities:
Commodity derivatives	—			(1,345		)	—		(1,345		)
Total	$	17,813		$	(38,617	)	$	—	$	(20,804	)



	December 31, 2011
	Level 1			Level 2			Level 3		Total
	(Thousands of Dollars)
Other current assets:
Product imbalances	$	2,117		$	—		$	—	$	2,117
Commodity derivatives	10,282			1,830			—		12,112
Other long-term assets, net:
Commodity derivatives	—			27,084			—		27,084
Interest rate swaps	—			2,335			—		2,335
Accrued liabilities:
Product imbalances	(1,469		)	—			—		(1,469		)
Commodity derivatives	(5,424		)	—			—		(5,424		)
Interest rate swaps	—			(22,009		)	—		(22,009		)
Other long-term liabilities:
Interest rate swaps	—			(27,190		)	—		(27,190		)
Total	$	5,506		$	(17,950	)	$	—	$	(12,444	)

Non-recurring Fair Value Measurements

The following assets are measured at fair value on a non-recurring basis:



	June 30, 2012
	Level 1	Level 2	Level 3		Total
	(Thousands of Dollars)
Long-lived assets held for sale - Asphalt Operations	—	—	$	227,000	$	227,000
Long-lived assets held for sale - other	—	—	$	2,847	$	2,847

We estimated the fair value of the long-lived assets associated with our Asphalt Operations reporting unit as the sum of the purchase price to be paid by Lindsay Goldberg for the Class A Interests of Asphalt JV and the fair value of the Class B Interests of Asphalt JV that we would retain. We determined the fair value of the Class B Interests using a combination of valuation methods, including an income approach method, a market approach method and an option model. The significant inputs used in the income approach method include estimated future cash flows and a discount rate equal to the estimated weighted average cost of capital of 14.0%. Inputs used in the market approach method include observable multiples applied to key financial statistics derived from peer companies. Inputs to the option model include an underlying asset value, a five-year expected date of liquidity, a discount rate of 0.7%, an expected volatility of 62.0% and exercise prices consistent with the distribution and liquidation rights for the Class A Interests and Class B Interests. The other long-lived assets held for sale in the table above represent certain corporate assets that we wrote down to their estimated sales price. See Note 2. Assets Held for Sale and Asset Impairments for additional discussion on our plan to sell 50% of the Asphalt Operations.

Fair Value of Financial Instruments

We recognize cash equivalents, receivables, payables and debt in our consolidated balance sheets at their carrying amount.

The fair values of these financial instruments, except for debt, approximate their carrying amounts. The estimated fair value and carrying amount of our debt was as follows:



	June 30, 2012		December 31, 2011
	(Thousands of Dollars)
Fair value	$	2,648,915	$	2,377,565
Carrying amount	$	2,624,868	$	2,293,030

We estimated the fair value of our publicly-traded senior notes based upon quoted prices in active markets; therefore, we determined the fair value of our publicly traded senior notes falls in Level 1 of the fair value hierarchy. For our other debt, for which a quoted market price is not available, we estimated the fair value using a discounted cash flow analysis using current incremental borrowing rates for similar types of borrowing arrangements and determined the fair value falls in Level 2 of the fair value hierarchy.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 44A, 44B
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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-Paragraph 15C, 15D
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15A
-Subparagraph a-d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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-Subparagraph a, b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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-Paragraph 3, 10, 14, 15
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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-Paragraph 32, 33, 34
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
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+ Details

DERIVATIVES AND RISK MANAGEMENT ACTIVITIES

6 Months Ended

Jun. 30, 2012

DERIVATIVES AND RISK MANAGEMENT ACTIVITIES [Abstract]

DERIVATIVES AND RISK MANAGEMENT ACTIVITIES

We utilize various derivative instruments to: (i) manage our exposure to commodity price risk; (ii) manage our exposure to interest rate risk; and (iii) attempt to profit from market fluctuations. Our risk management policies and procedures are designed to monitor interest rates, futures and swap positions and over-the-counter positions, as well as physical volumes, grades, locations and delivery schedules, to help ensure that our hedging activities address our market risks. Our risk management committee oversees our trading controls and procedures and certain aspects of our commodity and trading risk management. Our risk management committee also reviews all new commodity and trading risk management strategies in accordance with our risk management policy, which was approved by our board of directors.

Interest Rate Risk

We are a party to certain interest rate swap agreements to manage our exposure to changes in interest rates. We entered into fixed-to-floating interest rate swap agreements associated with a portion of our fixed-rate senior notes. During the six months ended June 30, 2012, we entered into and terminated fixed-to-floating interest rate swap agreements with an aggregate notional amount of $200.0 million related to the 4.75% senior notes issued on February 2, 2012. Under the terms of these interest rate swap agreements, we received a fixed 4.75% and paid a variable rate based on one month USD LIBOR plus a percentage that varied with each agreement. We also terminated fixed-to-floating interest rate swap agreements with an aggregate notional amount of $270.0 million associated with our 4.80% senior notes. We received $19.7 million in connection with the terminations, which we are amortizing into “Interest expense, net” over the remaining lives of the 4.80% and 4.75% senior notes. We had no fixed-to-floating interest rate swaps as of June 30, 2012, and the total aggregate notional amount of the fixed-to-floating interest rate swaps was $270.0 million as of December 31, 2011.

We are also a party to forward-starting interest rate swap agreements related to forecasted probable debt issuances. We entered into these swaps in order to hedge the risk of changes in the interest payments attributable to changes in the benchmark interest rate during the period from the effective date of the swap to the issuance of the forecasted debt. These swaps are designated and qualify as cash flow hedges. In connection with the issuance of the 4.75% senior notes on February 2, 2012, we terminated forward-starting interest rate swap agreements with an aggregate notional amount of $225.0 million. We paid $25.4 million in connection with the terminations, which is being amortized into “Interest expense, net” over the life of the 4.75% senior notes. The termination payment is included in cash flows from financing activities on the consolidated statements of cash flows. As of June 30, 2012 and December 31, 2011, the total aggregate notional amount of the forward-starting interest rate swaps was $275.0 million and $500.0 million, respectively.

Commodity Price Risk

We are exposed to market risks related to the volatility of crude oil and refined product prices. In order to reduce the risk of commodity price fluctuations with respect to our crude oil and finished product inventories and related firm commitments to purchase and/or sell such inventories, we utilize commodity futures and swap contracts, which qualify and we designated them as fair value hedges.

We also enter into commodity swap contracts to hedge the price risk associated with the San Antonio refinery. These contracts fix the purchase price of crude oil and sales prices of refined products for a portion of the expected production of the San Antonio refinery, thereby attempting to mitigate the risk of volatility of future cash flows associated with hedged volumes. These contracts qualify and we designated them as cash flow hedges. During the second quarter of 2012, we reduced the hedged volumes of the expected production of the San Antonio refinery, thereby exposing us to additional price risk.

Derivatives that are intended to hedge our commodity price risk, but fail to qualify as fair value or cash flow hedges, are considered economic hedges, and we record associated gains and losses from such derivatives in net income. We also enter into commodity derivatives in order to attempt to profit from market fluctuations. These derivative instruments are financial positions entered into without underlying physical inventory and are not considered hedges. Changes in the fair values are recorded in net income.

The volume of commodity contracts is based on open derivative positions and represents the combined volume of our long and short positions on an absolute basis, which totaled 32.0 million barrels and 27.8 million barrels as of June 30, 2012 and December 31, 2011, respectively.

The fair values of our derivative instruments included in our consolidated balance sheets were as follows:



		Asset Derivatives				Liability Derivatives
	Balance Sheet Location	June 30, 2012		December 31, 2011		June 30, 2012			December 31, 2011
		(Thousands of Dollars)
Derivatives Designated as Hedging Instruments:
Commodity contracts	Other current assets	$	5,776	$	36,116	$	(5,010	)	$	(33,616	)
Commodity contracts	Other long-term assets, net	36,782		86,052		(27,220		)	(66,175		)
Interest rate swaps	Other long-term assets, net	—		2,335		—			—
Commodity contracts	Accrued liabilities	35,863		—		(50,514		)	—
Interest rate swaps	Accrued liabilities	—		—		(37,291		)	(22,009		)
Commodity contracts	Other long-term liabilities	9,652		—		(16,496		)	—
Interest rate swaps	Other long-term liabilities	—		—		—			(27,190		)
Total		88,073		124,503		(136,531		)	(148,990		)

Derivatives Not Designated as Hedging Instruments:
Commodity contracts	Other current assets	91,480		15,568		(46,371		)	(5,956		)
Commodity contracts	Other long-term assets, net	13,921		7,207		(14,387		)	—
Commodity contracts	Accrued liabilities	32,997		519		(55,483		)	(5,943		)
Commodity contracts	Other long-term liabilities	20,279		—		(14,780		)	—
Total		158,677		23,294		(131,021		)	(11,899		)

Total Derivatives		$	246,750	$	147,797	$	(267,552	)	$	(160,889	)

The earnings impact of our derivative activity was as follows:



Derivatives Designated as Fair Value Hedging Instruments	Income Statement Location	Amount of Gain (Loss) Recognized in Income on Derivative (Effective Portion)			Amount of Gain (Loss) Recognized in Income on Hedged Item			Amount of Gain (Loss) Recognized in Income on Derivative (Ineffective Portion)
		(Thousands of Dollars)
Three months ended June 30, 2012:
Interest rate swaps	Interest expense, net	$	(19,573	)	$	19,573		$	—
Commodity contracts	Cost of product sales	5,222			(5,837		)	(615		)
Total		$	(14,351	)	$	13,736		$	(615	)

Three months ended June 30, 2011
Interest rate swaps	Interest expense, net	$	14,528		$	(14,812	)	$	(284	)
Commodity contracts	Cost of product sales	1,002			(1,650		)	(648		)
Total		$	15,530		$	(16,462	)	$	(932	)

Six months ended June 30, 2012:
Interest rate swaps	Interest expense, net	$	(17,345	)	$	17,345		$	—
Commodity contracts	Cost of product sales	2,635			(3,447		)	(812		)
Total		$	(14,710	)	$	13,898		$	(812	)

Six months ended June 30, 2011:
Interest rate swaps	Interest expense, net	$	8,614		$	(8,852	)	$	(238	)
Commodity contracts	Cost of product sales	(11,064		)	10,720			(344		)
Total		$	(2,450	)	$	1,868		$	(582	)



Derivatives Designated as Cash Flow Hedging Instruments	Amount of Gain (Loss) Recognized in OCI on Derivative (Effective Portion)			Income Statement Location (a)	Amount of Gain (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)			Amount of Gain (Loss) Recognized in Income on Derivative (Ineffective Portion)
	(Thousands of Dollars)				(Thousands of Dollars)
Three months ended June 30, 2012:
Interest rate swaps	$	(16,749	)	Interest expense, net	$	(629	)	$	—
Commodity contracts	4,461			Cost of product sales	(8,518		)	—
Total	$	(12,288	)		$	(9,147	)	$	—

Three months ended June 30, 2011
Interest rate swaps	$	(15,708	)	Interest expense, net	$	—		$	—
Commodity contracts	(16,454		)	Cost of product sales	(1,225		)	—
Total	$	(32,162	)		$	(1,225	)	$	—

Six months ended June 30, 2012:
Interest rate swaps	$	(13,451	)	Interest expense, net	$	(1,052	)	$	—
Commodity contracts	(52,660		)	Cost of product sales	(15,862		)	4,010
Total	$	(66,111	)		$	(16,914	)	$	4,010

Six months ended June 30, 2011:
Interest rate swaps	$	(12,830	)	Interest expense, net	$	—		$	—
Commodity contracts	(16,454		)	Cost of product sales	(1,225		)	—
Total	$	(29,284	)		$	(1,225	)	$	—


(a)	Amounts are included in specified location for both the gain (loss) reclassified from accumulated other comprehensive income (OCI) into income (effective portion) and the gain (loss) recognized in income on derivative (ineffective portion).



Derivatives Not Designated as Hedging Instruments	Income Statement Location	Amount of Gain (Loss) Recognized in Income
		(Thousands of Dollars)
Three months ended June 30, 2012:
Commodity contracts	Revenues	$	(8,164	)
Commodity contracts	Cost of product sales	28,255
		$	20,091

Three months ended June 30, 2011
Commodity contracts	Revenues	$	(29	)
Commodity contracts	Cost of product sales	4,462
		$	4,433

Six months ended June 30, 2012:
Commodity contracts	Revenues	$	(7,654	)
Commodity contracts	Cost of product sales	23,937
		$	16,283

Six months ended June 30, 2011:
Commodity contracts	Revenues	$	235
Commodity contracts	Cost of product sales	(11,167		)
Commodity contracts	Operating expenses	46
		$	(10,886	)

For derivatives designated as cash flow hedging instruments, once a hedged transaction occurs, we reclassify the effective portion from accumulated OCI to “Cost of product sales” or “Interest expense, net.” As of June 30, 2012, we expect to reclassify a loss of $9.1 million to “Cost of product sales” and a loss of $2.5 million to “Interest expense, net” within the next twelve months. The maximum length of time over which we are hedging our exposure to the variability in future cash flows is approximately three years for our commodity contracts and one year for our forward-starting interest rate swaps.

- Definition

The entire disclosure for the entity's entire derivative instruments and hedging activities. Describes an entity's risk management strategies, derivatives in hedging activities and non-hedging derivative instruments, the assets, obligations, liabilities, revenues and expenses arising therefrom, and the amounts of and methodologies and assumptions used in determining the amounts of such items.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 45
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 44
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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+ Details

RELATED PARTY TRANSACTIONS

6 Months Ended

Jun. 30, 2012

Related Party Transactions

RELATED PARTY TRANSACTIONS

Our operations are managed by NuStar GP, LLC, the general partner of our general partner. Under a services agreement between NuStar Energy and NuStar GP, LLC, employees of NuStar GP, LLC perform services for our United States operations. Certain of our wholly owned subsidiaries employ persons who perform services for our international operations. Employees of NuStar GP, LLC provide services to both NuStar Energy and NuStar GP Holdings; therefore, we reimburse NuStar GP, LLC for all costs related to its employees, other than costs associated with NuStar GP Holdings. Related party revenues result from storage agreements between our Turkey subsidiary and the noncontrolling shareholder.

The following table summarizes information pertaining to related party transactions:



	Three Months Ended June 30,				Six Months Ended June 30,
	2012		2011		2012		2011
	(Thousands of Dollars)
Revenues	$	788	$	407	$	1,485	$	537
Operating expenses	$	37,101	$	36,801	$	76,033	$	71,910
General and administrative expenses	$	13,360	$	16,035	$	32,529	$	32,983

We had a payable to NuStar GP, LLC of $17.6 million and $6.7 million as of June 30, 2012 and December 31, 2011, respectively, with both amounts representing payroll, employee benefit plan expenses and unit-based compensation. We also had a long-term payable to NuStar GP, LLC as of June 30, 2012 and December 31, 2011 of $15.1 million and $14.5 million, respectively, related to amounts payable for retiree medical benefits and other post-employment benefits.

- Definition

The entire disclosure for related party transactions, including the nature of the relationship(s), a description of the transactions, the amount of the transactions, the effects of any change in the method of establishing the terms of the transaction from the previous period, stated interest rate, expiration date, terms and manner of settlement per the agreement with the related party, and amounts due to or from related parties. If the entity and one or more other entities are under common ownership or management control and this control affects the operating results or financial position, disclosure includes the nature of the control relationship even if there are no transactions between the entities. Disclosure may also include the aggregate amount of current and deferred tax expense for each statement of earnings presented where the entity is a member of a group that files a consolidated tax return, the amount of any tax related balances due to or from affiliates as of the date of each statement of financial position presented, the principal provisions of the method by which the consolidated amount of current and deferred tax expense is allocated to the members of the group and the nature and effect of any changes in that method. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 4
-Section 08
-Paragraph k

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 3A
-Section 04
-Paragraph b

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 57
-Paragraph 1-4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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+ Details

OTHER INCOME (EXPENSE)

6 Months Ended

Jun. 30, 2012

OTHER INCOME (EXPENSE) [Abstract]

OTHER INCOME (EXPENSE)

OTHER EXPENSE

Other expense, net consisted of the following:



	Three Months Ended June 30,						Six Months Ended June 30,
	2012			2011			2012			2011
	(Thousands of Dollars)
Storage agreement early termination costs	$	—		$	—		—			(5,000		)
Foreign exchange (losses) gains	(2,878		)	34			(2,498		)	(576		)
Other, net	66			(1,001		)	1,054			(890		)
Other expense, net	$	(2,812	)	$	(967	)	$	(1,444	)	$	(6,466	)

For the six months ended June 30, 2011, “Other expense, net” included $5.0 million in costs associated with the early termination of a third-party storage agreement at our Paulsboro, New Jersey asphalt refinery.

PARTNERS' EQUITY

6 Months Ended

Jun. 30, 2012

PARTNERS' EQUITY [Abstract]

PARTNERS' EQUITY

PARTNERS’ EQUITY

Partners’ Equity Activity

The following table summarizes changes in the carrying amount of equity attributable to NuStar Energy L.P. partners and noncontrolling interest:



	Three Months Ended June 30, 2012									Three Months Ended June 30, 2011
	NuStar Energy L.P. Partners’ Equity			Noncontrolling Interest			Total Partners’ Equity			NuStar Energy L.P. Partners’ Equity			Noncontrolling Interest			Total Partners’ Equity
	(Thousands of Dollars)
Beginning balance	$	2,751,062		$	13,156		$	2,764,218		$	2,663,017		$	15,566		$	2,678,583
Net (loss) income	(246,737		)	(73		)	(246,810		)	92,599			6			92,605
Other comprehensive (loss) income:
Foreign currency translation adjustment	(3,815		)	(235		)	(4,050		)	(842		)	(827		)	(1,669		)
Net unrealized loss on cash flow hedges	(12,288		)	—			(12,288		)	(32,162		)	—			(32,162		)
Net loss reclassified into income on cash flow hedges	9,147			—			9,147			1,225			—			1,225
Total other comprehensive (loss) income	(6,956		)	(235		)	(7,191		)	(31,779		)	(827		)	(32,606		)
Cash distributions to partners	(89,076		)	—			(89,076		)	(79,616		)	—			(79,616		)
Other	(24		)	—			(24		)	—			—			—
Ending balance	$	2,408,269		$	12,848		$	2,421,117		$	2,644,221		$	14,745		$	2,658,966



	Six Months Ended June 30, 2012									Six Months Ended June 30, 2011
	NuStar Energy L.P. Partners’ Equity			Noncontrolling Interest			Total Partners’ Equity			NuStar Energy L.P. Partners’ Equity			Noncontrolling Interest			Total Partners’ Equity
	(Thousands of Dollars)
Beginning balance	$	2,852,201		$	12,134		$	2,864,335		$	2,702,700		$	—		$	2,702,700
Acquisition	—			—			—			—			15,000			15,000
Net (loss) income	(220,386		)	(170		)	(220,556		)	121,101			20			121,121
Other comprehensive (loss) income:
Foreign currency translation adjustment	4,096			884			4,980			7,711			(275		)	7,436
Net unrealized loss on cash flow hedges	(66,111		)	—			(66,111		)	(29,284		)	—			(29,284		)
Net loss reclassified into income on cash flow hedges	16,914			—			16,914			1,225			—			1,225
Total other comprehensive (loss) income	(45,101		)	884			(44,217		)	(20,348		)	(275		)	(20,623		)
Cash distributions to partners	(178,152		)	—			(178,152		)	(159,232		)	—			(159,232		)
Other	(293		)	—			(293		)	—			—			—
Ending balance	$	2,408,269		$	12,848		$	2,421,117		$	2,644,221		$	14,745		$	2,658,966

Allocations of Net Income

Our partnership agreement, as amended, sets forth the calculation to be used to determine the amount and priority of cash distributions that the common unitholders and the general partner will receive. The partnership agreement also contains provisions for the allocation of net income and loss to the unitholders and the general partner. For purposes of maintaining partner capital accounts, the partnership agreement specifies that items of income and loss shall be allocated among the partners in accordance with their respective percentage interests. Normal allocations according to percentage interests are made after giving effect to priority income allocations, if any, in an amount equal to incentive cash distributions allocated 100% to the general partner. The following table details the calculation of net income applicable to the general partner:



	Three Months Ended June 30,						Six Months Ended June 30,
	2012			2011			2012			2011
	(Thousands of Dollars)
Net (loss) income attributable to NuStar Energy L.P.	$	(246,737	)	$	92,599		$	(220,386	)	$	121,101
Less general partner incentive distribution	9,816			8,963			19,632			17,531
Net (loss) income after general partner incentive distribution	(256,553		)	83,636			(240,018		)	103,570
General partner interest	2		%	2		%	2		%	2		%
General partner allocation of net (loss) income after general partner incentive distribution	(5,131		)	1,673			(4,800		)	2,071
General partner incentive distribution	9,816			8,963			19,632			17,531
Net income applicable to general partner	$	4,685		$	10,636		$	14,832		$	19,602

Cash Distributions

On May 11, 2012, we paid a quarterly cash distribution totaling $89.1 million, or $1.095 per unit, related to the first quarter of 2012. On July 27, 2012, we announced a quarterly cash distribution of $1.095 per unit related to the second quarter of 2012. This distribution will be paid on August 10, 2012 to unitholders of record on August 7, 2012 and will total $89.1 million.

The following table reflects the allocation of total cash distributions to the general and limited partners applicable to the period in which the distributions were earned:



	Three Months Ended June 30,				Six Months Ended June 30,
	2012		2011		2012		2011
	(Thousands of Dollars, Except Per Unit Data)
General partner interest	$	1,782	$	1,627	$	3,564	$	3,219
General partner incentive distribution	9,816		8,963		19,632		17,531
Total general partner distribution	11,598		10,590		23,196		20,750
Limited partners’ distribution	77,478		70,749		154,956		140,205
Total cash distributions	$	89,076	$	81,339	$	178,152	$	160,955

Cash distributions per unit applicable to limited partners	$	1.095	$	1.095	$	2.190	$	2.170

- Definition

The entire disclosure for the formation, structure, control and ownership of the partnership. Disclosures related to accounts comprising partners' capital. Includes balances of general partners' capital account, limited partners' capital account, preferred partners' capital account and total partners' capital account and units outstanding; accumulated other comprehensive income; amount and nature of changes to amount of partner's capital and units outstanding by class, rights and privileges for each class of units; distribution policies and distributions paid by unit class; impact of and correction of an error in previously issued financial statements; limitations of partners' liability; redemption, conversion and distribution policies; and deferred compensation related to the issuance of units.

+ References + Details

NET INCOME PER UNIT

6 Months Ended

Jun. 30, 2012

NET INCOME PER UNIT [Abstract]

NET INCOME PER UNIT

We have identified the general partner interest and incentive distribution rights (IDR) as participating securities and use the two-class method when calculating the net income per unit applicable to limited partners, which is based on the weighted-average number of common units outstanding during the period. Basic and diluted net income per unit applicable to limited partners are the same because we have no potentially dilutive securities outstanding.

The following table details the calculation of earnings per unit:



	Three Months Ended June 30,					Six Months Ended June 30,
	2012			2011		2012			2011
	(Thousands of Dollars, Except Unit and Per Unit Data)
Net (loss) income attributable to NuStar Energy L.P.	$	(246,737	)	$	92,599	$	(220,386	)	$	121,101
Less general partner distribution (including IDR)	11,598			10,590		23,196			20,750
Less limited partner distribution	77,478			70,749		154,956			140,205
Distributions (greater than) less than earnings	$	(335,813	)	$	11,260	$	(398,538	)	$	(39,854	)

General partner earnings:
Distributions	$	11,598		$	10,590	$	23,196		$	20,750
Allocation of distributions (greater than) less than earnings (2%)	(6,717		)	225		(7,972		)	(798		)
Total	$	4,881		$	10,815	$	15,224		$	19,952

Limited partner earnings:
Distributions	$	77,478		$	70,749	$	154,956		$	140,205
Allocation of distributions (greater than) less than earnings (98%)	(329,096		)	11,035		(390,566		)	(39,056		)
Total	$	(251,618	)	$	81,784	$	(235,610	)	$	101,149

Weighted-average limited partner units outstanding	70,756,078			64,610,549		70,756,078			64,610,549

Net (loss) income per unit applicable to limited partners	$	(3.56	)	$	1.27	$	(3.33	)	$	1.57

STATEMENTS OF CASH FLOWS

6 Months Ended

Jun. 30, 2012

STATEMENTS OF CASH FLOWS [Abstract]

STATEMENTS OF CASH FLOWS

Changes in current assets and current liabilities were as follows:



	Six Months Ended June 30,
	2012			2011
	(Thousands of Dollars)
Decrease (increase) in current assets:
Accounts receivable	$	60,424		$	(139,110	)
Inventories	(76,778		)	(239,766		)
Income tax receivable	2,216			—
Other current assets	(43,458		)	(17,759		)
Increase (decrease) in current liabilities:
Accounts payable	(31,345		)	202,229
Payable to related party	10,836			5,133
Accrued interest payable	(2,188		)	11
Accrued liabilities	4,260			(16,068		)
Taxes other than income tax	649			3,124
Income tax payable	(704		)	470
Changes in current assets and current liabilities	$	(76,088	)	$	(201,736	)

The above changes in current assets and current liabilities differ from changes between amounts reflected in the applicable balance sheets due to the changes in assets held for sale being reflected in the line items to which the changes relate in the table above and and the effect of foreign currency translation.

Cash flows related to interest and income taxes were as follows:



	Six Months Ended June 30,
	2012		2011
	(Thousands of Dollars)
Cash paid for interest, net of amount capitalized	$	55,639	$	53,684
Cash paid for income taxes, net of tax refunds received	$	15,265	$	7,070

INCOME TAXES

6 Months Ended

Jun. 30, 2012

INCOME TAXES [Abstract]

Income Tax Disclosure [Text Block]

INCOME TAXES

The tax effects of significant temporary differences representing deferred income tax assets and liabilities were as follows:



	June 30, 2012			December 31, 2011
	(Thousands of Dollars)
Deferred income tax assets:
Net operating losses	$	18,000		$	17,089
Environmental and legal reserves	4,675			14,822
Capital loss	672			1,044
Valuation allowance	(272		)	(1,161		)
Total deferred income tax assets	23,075			31,794

Deferred income tax liabilities:
Property, plant and equipment	(53,248		)	(57,392		)
Other	(1,423		)	(698		)
Total deferred income tax liabilities	(54,671		)	(58,090		)

Net deferred income tax liability	$	(31,596	)	$	(26,296	)

Reported on the Consolidated Balance Sheets as:
Deferred income tax asset	$	—		$	9,141
Deferred income tax liability	(31,596		)	(35,437		)
Net deferred income tax liability	$	(31,596	)	$	(26,296	)

Grace Energy Corporation Matter

In connection with the settlement of the Grace Energy Corporation matter, we recognized a pre-tax gain of $28.7 million within one of our taxable subsidiaries. As a result, we recorded related income tax expense of $10.1 million, resulting from the reduction of the related deferred income tax asset. See Note 6. Commitments and Contingencies for a discussion on the Grace Energy Corporation matter.

Canadian Income Tax Audit

During the second quarter of 2012, we recorded $1.0 million of additional income tax liability and $2.2 million of interest and penalties associated with an ongoing Canadian income tax audit for the years 2006 through 2011. We also recorded $1.3 million of Canadian withholding tax and $0.7 million of interest and penalties associated with the withholding tax liability related to interest payments made from our Canadian subsidiaries to a United States entity from 2003 to 2009. We believe that adequate provisions for uncertainties related to the Canadian audits have been reflected in the financial statements.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph h
-Article 4

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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-Paragraph 136, 172
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+ Details

SEGMENT INFORMATION

6 Months Ended

Jun. 30, 2012

SEGMENT INFORMATION [Abstract]

SEGMENT INFORMATION

Our reportable business segments consist of storage, transportation, and asphalt and fuels marketing. Our segments represent strategic business units that offer different services and products. We evaluate the performance of each segment based on its respective operating income, before general and administrative expenses and certain non-segmental depreciation and amortization expense. General and administrative expenses are not allocated to the operating segments since those expenses relate primarily to the overall management at the entity level. Our principal operations include terminalling and storage of petroleum products, the transportation of petroleum products and anhydrous ammonia, and petroleum refining and marketing. Intersegment revenues result from storage and throughput agreements with related parties at lease rates consistent with rates charged to third parties for storage and at pipeline tariff rates based upon the applicable published tariff.

Results of operations for the reportable segments were as follows:



	Three Months Ended June 30,						Six Months Ended June 30,
	2012			2011			2012			2011
	(Thousands of Dollars)
Revenues:
Storage:
Third parties	$	133,187		$	127,646		$	260,874		$	252,899
Intersegment	18,818			11,491			35,863			22,883
Related party	788			407			1,485			537
Total storage	152,793			139,544			298,222			276,319
Transportation:
Third parties	74,607			71,562			152,368			144,572
Intersegment	1,011			—			1,011			—
Total transportation	75,618			71,562			153,379			144,572
Asphalt and fuels marketing:
Third parties	1,693,323			1,389,569			3,222,870			2,425,792
Intersegment	178			749			307			4,594
Total asphalt and fuels marketing	1,693,501			1,390,318			3,223,177			2,430,386
Consolidation and intersegment eliminations	(20,007		)	(12,240		)	(37,181		)	(27,477		)
Total revenues	$	1,901,905		$	1,589,184		$	3,637,597		$	2,823,800

Operating income:
Storage	$	54,127		$	42,848		$	110,274		$	91,544
Transportation	31,870			30,163			68,821			64,560
Asphalt and fuels marketing	(292,539		)	72,153			(308,314		)	72,271
Consolidation and intersegment eliminations	(25		)	(110		)	(26		)	(45		)
Total segment operating (loss) income	(206,567		)	145,054			(129,245		)	228,330
General and administrative expenses	(23,135		)	(26,119		)	(50,322		)	(52,102		)
Other depreciation and amortization expense	(2,039		)	(1,584		)	(3,853		)	(3,146		)
Other asset impairment loss	(3,295		)	—			(3,295		)	—
Gain on legal settlement	28,738			—			28,738			—
Total operating (loss) income	$	(206,298	)	$	117,351		$	(157,977	)	$	173,082

Total assets by reportable segment were as follows:



	June 30, 2012		December 31, 2011
	(Thousands of Dollars)
Storage	$	2,599,600	$	2,597,904
Transportation	1,304,160		1,251,474
Asphalt and fuels marketing	1,490,107		1,717,960
Total segment assets	5,393,867		5,567,338
Other partnership assets	323,731		313,852
Total consolidated assets	$	5,717,598	$	5,881,190

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 131
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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+ Details

CONDENSED CONSOLIDATING FINANCIAL STATEMENTS

6 Months Ended

Jun. 30, 2012

CONDENSED CONSOLIDATING FINANCIAL STATEMENTS [Abstract]

CONDENSED CONSOLIDATING FINANCIAL STATEMENTS

NuStar Energy has no operations and its assets consist mainly of its investments in NuStar Logistics and NuPOP, both wholly owned subsidiaries. The senior notes issued by NuStar Logistics and NuPOP are fully and unconditionally guaranteed by NuStar Energy, and each of NuStar Logistics and NuPOP fully and unconditionally guarantee the outstanding senior notes of the other. As a result, the following condensed consolidating financial statements are presented as an alternative to providing separate financial statements for NuStar Logistics and NuPOP.

Condensed Consolidating Balance Sheets

June 30, 2012

(Thousands of Dollars)



	NuStar Energy		NuStar Logistics			NuPOP		Non-Guarantor Subsidiaries (a)		Eliminations			Consolidated
Assets
Cash and cash equivalents	$	200	$	10		$	—	$	33,937	$	—		$	34,147
Receivables, net	—		67,205			5,258		452,598		(37,496		)	487,565
Inventories	—		2,600			1,917		249,118		(25		)	253,610
Income tax receivable	—		—			—		1,952		—			1,952
Other current assets	—		13,612			603		71,657		—			85,872
Assets held for sale	—		2,847			—		638,112		—			640,959
Intercompany receivable	—		1,175,398			567,747		—		(1,743,145		)	—
Total current assets	200		1,261,672			575,525		1,447,374		(1,780,666		)	1,504,105
Property, plant and equipment, net	—		1,270,143			590,411		1,218,877		—			3,079,431
Intangible assets, net	—		1,941			—		26,285		—			28,226
Goodwill	—		18,094			170,652		633,955		—			822,701
Investment in wholly owned subsidiaries	2,988,453		(108,393		)	1,214,739		2,298,588		(6,393,387		)	—
Investment in joint venture	—		—			—		68,188		—			68,188
Deferred income tax asset	—		—			—		—		—			—
Other long-term assets, net	496		162,050			26,329		26,072		—			214,947
Total assets	$	2,989,149	$	2,605,507		$	2,577,656	$	5,719,339	$	(8,174,053	)	$	5,717,598
Liabilities and Partners’ Equity
Current portion of long-term debt	$	—	$	232,860		$	252,092	$	32,928	$	—		$	517,880
Payables	59		45,965			20,040		412,221		(37,496		)	440,789
Accrued interest payable	—		26,408			1,224		13		—			27,645
Accrued liabilities	606		46,672			2,562		69,928		—			119,768
Taxes other than income tax	—		5,805			2,892		5,638		—			14,335
Income tax payable	—		133			—		2,384		—			2,517
Intercompany payable	507,707		—			—		1,235,438		(1,743,145		)	—
Total current liabilities	508,372		357,843			278,810		1,758,550		(1,780,641		)	1,122,934
Long-term debt, less current portion	—		2,106,988			—		—		—			2,106,988
Long-term payable to related party	—		8,673			—		6,468		—			15,141
Deferred income tax liability	—		—			—		31,596		—			31,596
Other long-term liabilities	—		2,790			239		16,793		—			19,822
Total partners’ equity	2,480,777		129,213			2,298,607		3,905,932		(6,393,412		)	2,421,117
Total liabilities and partners’ equity	$	2,989,149	$	2,605,507		$	2,577,656	$	5,719,339	$	(8,174,053	)	$	5,717,598


(a)	Non-guarantor subsidiaries are wholly owned by NuStar Energy, NuStar Logistics or NuPOP.

Condensed Consolidating Balance Sheets

December 31, 2011

(Thousands of Dollars)



	NuStar Energy		NuStar Logistics		NuPOP		Non-Guarantor Subsidiaries (a)		Eliminations			Consolidated
Assets
Cash and cash equivalents	$	139	$	14	$	—	$	17,344	$	—		$	17,497
Receivables, net	—		27,533		6,877		514,477		(1,079		)	547,808
Inventories	—		2,311		6,370		579,152		(48		)	587,785
Income tax receivable	—		—		—		4,148		—			4,148
Other current assets	—		9,796		2,423		31,466		—			43,685
Intercompany receivable	—		893,268		780,066		—		(1,673,334		)	—
Total current assets	139		932,922		795,736		1,146,587		(1,674,461		)	1,200,923
Property, plant and equipment, net	—		1,150,318		596,229		1,683,921		—			3,430,468
Intangible assets, net	—		1,966		—		36,957		—			38,923
Goodwill	—		18,094		170,652		657,971		—			846,717
Investment in wholly owned subsidiaries	3,386,170		220,513		1,159,620		2,216,792		(6,983,095		)	—
Investment in joint venture	—		—		—		66,687		—			66,687
Deferred income tax asset	—		—		—		9,141		—			9,141
Other long-term assets, net	364		192,007		26,329		69,631		—			288,331
Total assets	$	3,386,673	$	2,515,820	$	2,748,566	$	5,887,687	$	(8,657,556	)	$	5,881,190
Liabilities and Partners’ Equity
Current portion of long-term debt	$	—	$	331,317	$	1,060	$	32,582	$	—		$	364,959
Payables	—		32,590		11,512		418,038		(1,079		)	461,061
Accrued interest payable	—		21,332		8,489		12		—			29,833
Accrued liabilities	829		42,788		4,661		22,992		—			71,270
Taxes other than income tax	125		5,661		2,678		4,991		—			13,455
Income tax payable	—		352		7		2,863		—			3,222
Intercompany payable	506,111		—		—		1,167,223		(1,673,334		)	—
Total current liabilities	507,065		434,040		28,407		1,648,701		(1,674,413		)	943,800
Long-term debt, less current portion	—		1,424,891		503,180		—		—			1,928,071
Long-term payable to related party	—		8,027		—		6,475		—			14,502
Deferred income tax liability	—		—		—		35,437		—			35,437
Other long-term liabilities	—		29,939		220		64,886		—			95,045
Total partners’ equity	2,879,608		618,923		2,216,759		4,132,188		(6,983,143		)	2,864,335
Total liabilities and partners’ equity	$	3,386,673	$	2,515,820	$	2,748,566	$	5,887,687	$	(8,657,556	)	$	5,881,190


(a)	Non-guarantor subsidiaries are wholly owned by NuStar Energy, NuStar Logistics or NuPOP.

Condensed Consolidating Statements of Comprehensive (Loss) Income

For the Three Months Ended June 30, 2012

(Thousands of Dollars)



	NuStar Energy			NuStar Logistics			NuPOP			Non-Guarantor Subsidiaries (a)			Eliminations			Consolidated
Revenues	$	—		$	83,835		$	45,191		$	1,781,558		$	(8,679	)	$	1,901,905
Costs and expenses	385			51,364			31,739			2,033,428			(8,713		)	2,108,203
Operating (loss) income	(385		)	32,471			13,452			(251,870		)	34			(206,298		)
Equity in earnings of subsidiaries	(246,352		)	(303,735		)	36,613			45,770			467,704			—
Equity in earnings of joint venture	—			—			—			2,381			—			2,381
Interest expense, net	—			(20,685		)	(2,828		)	(307		)	—			(23,820		)
Other income, net	—			103			(109		)	(2,806		)	—			(2,812		)
Income (loss) before income tax expense	(246,737		)	(291,846		)	47,128			(206,832		)	467,738			(230,549		)
Income tax expense	—			51			1,328			14,882			—			16,261
Net income (loss)	(246,737		)	(291,897		)	45,800			(221,714		)	467,738			(246,810		)
Less net loss attributable to noncontrolling interest	—			—			—			(73		)	—			(73		)
Net income (loss) attributable to NuStar Energy L.P.	$	(246,737	)	$	(291,897	)	$	45,800		$	(221,641	)	$	467,738		$	(246,737	)

Comprehensive income (loss)	$	(246,737	)	$	(308,017	)	$	45,800		$	(212,785	)	$	467,738		$	(254,001	)
Less comprehensive income attributable to noncontrolling interest	—			—			—			(308		)	—			(308		)
Comprehensive income (loss) attributable to NuStar Energy L.P.	$	(246,737	)	$	(308,017	)	$	45,800		$	(212,477	)	$	467,738		$	(253,693	)


(a)	Non-guarantor subsidiaries are wholly owned by NuStar Energy, NuStar Logistics or NuPOP.

Condensed Consolidating Statements of Comprehensive Income

For the Three Months Ended June 30, 2011

(Thousands of Dollars)



	NuStar Energy			NuStar Logistics			NuPOP			Non-Guarantor Subsidiaries (a)			Eliminations			Consolidated
Revenues	$	—		$	67,771		$	40,102		$	1,486,632		$	(5,321	)	$	1,589,184
Costs and expenses	386			43,059			30,606			1,402,737			(4,955		)	1,471,833
Operating (loss) income	(386		)	24,712			9,496			83,895			(366		)	117,351
Equity in earnings of subsidiaries	92,985			51,532			28,143			47,293			(219,953		)	—
Equity in earnings of joint venture	—			—			—			2,010			—			2,010
Interest expense, net	—			(14,236		)	(5,759		)	(627		)	—			(20,622		)
Other income (loss), net	—			126			6			(1,099		)	—			(967		)
Income (loss) before income tax expense	92,599			62,134			31,886			131,472			(220,319		)	97,772
Income tax expense	—			664			—			4,503			—			5,167
Net income (loss)	92,599			61,470			31,886			126,969			(220,319		)	92,605
Less net income attributable to noncontrolling interest	—			—			—			6			—			6
Net income (loss) attributable to NuStar Energy L.P.	$	92,599		$	61,470		$	31,886		$	126,963		$	(220,319	)	$	92,599

Comprehensive income (loss)	$	92,599		$	45,762		$	31,886		$	110,071		$	(220,319	)	$	59,999
Less comprehensive loss attributable to noncontrolling interest	—			—			—			(821		)	—			(821		)
Comprehensive income (loss) attributable to NuStar Energy L.P.	$	92,599		$	45,762		$	31,886		$	110,892		$	(220,319	)	$	60,820


(a)	Non-guarantor subsidiaries are wholly owned by NuStar Energy, NuStar Logistics or NuPOP.

Condensed Consolidating Statements of Comprehensive (Loss) Income

For the Six Months Ended June 30, 2012

(Thousands of Dollars)



	NuStar Energy			NuStar Logistics			NuPOP			Non-Guarantor Subsidiaries (a)			Eliminations			Consolidated
Revenues	$	—		$	164,056		$	94,283		$	3,394,161		$	(14,903	)	$	3,637,597
Costs and expenses	820			97,738			66,696			3,645,254			(14,934		)	3,795,574
Operating (loss) income	(820		)	66,318			27,587			(251,093		)	31			(157,977		)
Equity in earnings of subsidiaries	(219,566		)	(328,906		)	62,518			81,827			404,127			—
Equity in earnings of joint venture	—			—			—			4,767			—			4,767
Interest expense, net	—			(38,763		)	(6,999		)	(408		)	—			(46,170		)
Other income, net	—			292			73			(1,809		)	—			(1,444		)
Income (loss) before income tax expense	(220,386		)	(301,059		)	83,179			(166,716		)	404,158			(200,824		)
Income tax expense	—			141			1,330			18,261			—			19,732
Net income (loss)	(220,386		)	(301,200		)	81,849			(184,977		)	404,158			(220,556		)
Less net loss attributable to noncontrolling interest	—			—			—			(170		)	—			(170		)
Net income (loss) attributable to NuStar Energy L.P.	$	(220,386	)	$	(301,200	)	$	81,849		$	(184,807	)	$	404,158		$	(220,386	)

Comprehensive income (loss)	$	(220,386	)	$	(313,599	)	$	81,849		$	(216,795	)	$	404,158		$	(264,773	)
Less comprehensive income attributable to noncontrolling interest	—			—			—			714			—			714
Comprehensive income (loss) attributable to NuStar Energy L.P.	$	(220,386	)	$	(313,599	)	$	81,849		$	(217,509	)	$	404,158		$	(265,487	)


(a)	Non-guarantor subsidiaries are wholly owned by NuStar Energy, NuStar Logistics or NuPOP.

Condensed Consolidating Statements of Comprehensive Income

For the Six Months Ended June 30, 2011

(Thousands of Dollars)



	NuStar Energy			NuStar Logistics			NuPOP			Non-Guarantor Subsidiaries (a)			Eliminations			Consolidated
Revenues	$	—		$	133,929		$	90,449		$	2,616,938		$	(17,516	)	$	2,823,800
Costs and expenses	801			86,331			66,579			2,514,606			(17,599		)	2,650,718
Operating (loss) income	(801		)	47,598			23,870			102,332			83			173,082
Equity in earnings of subsidiaries	121,902			34,542			56,663			95,838			(308,945		)	—
Equity in earnings of joint venture	—			—			—			4,398			—			4,398
Interest expense, net	—			(28,024		)	(11,551		)	(1,504		)	—			(41,079		)
Other income (loss), net	—			183			19			(6,668		)	—			(6,466		)
Income (loss) before income tax expense	121,101			54,299			69,001			194,396			(308,862		)	129,935
Income tax expense	—			1,027			—			7,787			—			8,814
Net income (loss)	121,101			53,272			69,001			186,609			(308,862		)	121,121
Less net income attributable to noncontrolling interest	—			—			—			20			—			20
Net income (loss) attributable to NuStar Energy L.P.	$	121,101		$	53,272		$	69,001		$	186,589		$	(308,862	)	$	121,101

Comprehensive income (loss)	$	121,101		$	40,442		$	69,001		$	178,816		$	(308,862	)	$	100,498
Less comprehensive loss attributable to noncontrolling interest	—			—			—			(255		)	—			(255		)
Comprehensive income (loss) attributable to NuStar Energy L.P.	$	121,101		$	40,442		$	69,001		$	179,071		$	(308,862	)	$	100,753


(a)	Non-guarantor subsidiaries are wholly owned by NuStar Energy, NuStar Logistics or NuPOP.

Condensed Consolidating Statements of Cash Flows

For the Six Months Ended June 30, 2012

(Thousands of Dollars)



	NuStar Energy			NuStar Logistics			NuPOP			Non-Guarantor Subsidiaries (a)			Eliminations			Consolidated
Net cash provided by (used in) operating activities	$	177,042		$	25,107		$	45,687		$	(30,157	)	$	(185,561	)	$	32,118
Cash flows from investing activities:
Capital expenditures	—			(153,890		)	(7,745		)	(49,504		)	—			(211,139		)
Acquisitions	—			—			—			—			—			—
Investment in other long-term assets	—			—			—			(2,286		)	—			(2,286		)
Proceeds from sale or disposition of assets	—			143			19			30,844			—			31,006
Net cash used in investing activities	—			(153,747		)	(7,726		)	(20,946		)	—			(182,419		)
Cash flows from financing activities:
Debt borrowings	—			1,433,678			—			—			—			1,433,678
Debt repayments	—			(1,081,758		)	(250,000		)	—			—			(1,331,758		)
Senior note offering, net	—			247,408			—			—			—			247,408
Distributions to unitholders and general partner	(178,152		)	(178,152		)	—			(7,417		)	185,569			(178,152		)
Payments for termination of interest rate swaps	—			(5,678		)	—			—			—			(5,678		)
Net intercompany borrowings (repayments)	1,596			(283,646		)	212,039			70,019			(8		)	—
Other, net	(425		)	(1,720		)	—			1,737			—			(408		)
Net cash provided by (used in) financing activities	(176,981		)	130,132			(37,961		)	64,339			185,561			165,090
Effect of foreign exchange rate changes on cash	—			(1,496		)	—			3,357			—			1,861
Net (decrease) increase in cash and cash equivalents	61			(4		)	—			16,593			—			16,650
Cash and cash equivalents as of the beginning of the period	139			14			—			17,344			—			17,497
Cash and cash equivalents as of the end of the period	$	200		$	10		$	—		$	33,937		$	—		$	34,147


(a)	Non-guarantor subsidiaries are wholly owned by NuStar Energy, NuStar Logistics or NuPOP.

Condensed Consolidating Statements of Cash Flows

For the Six Months Ended June 30, 2011

(Thousands of Dollars)



	NuStar Energy			NuStar Logistics			NuPOP			Non-Guarantor Subsidiaries (a)			Eliminations			Consolidated
Net cash provided by (used in) operating activities	$	158,188		$	54,572		$	18,441		$	(70,129	)	$	(159,248	)	$	1,824
Cash flows from investing activities:
Capital expenditures	—			(99,307		)	(1,802		)	(55,285		)	—			(156,394		)
Acquisition	—			—			—			(100,448		)	—			(100,448		)
Investment in other long-term assets	—			—			—			(5,580		)	—			(5,580		)
Investment in subsidiaries	(57,300		)	(47,869		)	(56,727		)	(56,727		)	218,623			—
Proceeds from sale or disposition of assets	—			40			44			205			—			289
Net cash used in investing activities	(57,300		)	(147,136		)	(58,485		)	(217,835		)	218,623			(262,133		)
Cash flows from financing activities:
Debt borrowings	—			617,364			—			—			—			617,364
Debt repayments	—			(257,593		)	—			—			—			(257,593		)
Distributions to unitholders and general partner	(159,232		)	(159,232		)	—			(16		)	159,248			(159,232		)
Contributions from (distributions to) affiliates	57,300			(57,300		)	56,727			161,896			(218,623		)	—
Proceeds from termination of interest rate swaps	—			9,112			—			—			—			9,112
Net intercompany borrowings (repayments)	1,044			(131,914		)	(16,683		)	147,553			—			—
Other, net	—			(2,268		)	—			(543		)	—			(2,811		)
Net cash (used in) provided by financing activities	(100,888		)	18,169			40,044			308,890			(59,375		)	206,840
Effect of foreign exchange rate changes on cash	—			6,849			—			(5,625		)	—			1,224
Net (decrease) increase in cash and cash equivalents	—			(67,546		)	—			15,301			—			(52,245		)
Cash and cash equivalents as of the beginning of the period	53			107,655			—			73,413			—			181,121
Cash and cash equivalents as of the end of the period	$	53		$	40,109		$	—		$	88,714		$	—		$	128,876


(a)	Non-guarantor subsidiaries are wholly owned by NuStar Energy, NuStar Logistics or NuPOP.

ASSETS HELD FOR SALE AND ASSET IMPAIRMENTS (Tables)

6 Months Ended

Jun. 30, 2012

ASSETS HELD FOR SALE AND ASSET IMPAIRMENTS [Abstract]

Details of Impairment of Long-Lived Assets Held and Used by Asset [Table Text Block]

The total asset impairment loss consisted of the following:



	Three and Six Months Ended June 30, 2012
	(Thousands of Dollars)
Asphalt Operations
Property, plant and equipment, net	$	232,759
Intangible assets, net	6,564
Other long-term assets, net	4,902
Asset impairment loss	244,225

Other
Property, plant and equipment, net	5,421
Total asset impairment loss	$	249,646

Disclosure of Long Lived Assets Held-for-sale [Table Text Block]

The total assets held for sale consisted of the following:



	June 30, 2012
	(Thousands of Dollars)
Asphalt Operations
Inventories	$	410,977
Other current assets	135
Property, plant and equipment, net	204,946
Other long-term assets, net	22,054
Assets held for sale	638,112

Other
Property, plant and equipment, net	2,847
Total assets held for sale	$	640,959

INVENTORIES (Tables)

6 Months Ended

Jun. 30, 2012

INVENTORIES [Abstract]

Schedule of Inventory Table [Text Block]

Inventories consisted of the following:



	June 30, 2012		December 31, 2011
	(Thousands of Dollars)
Crude oil	$	23,013	$	157,297
Finished products	223,608		421,288
Materials and supplies	6,989		9,200
Total	$	253,610	$	587,785

FAIR VALUE MEASUREMENTS (Tables)

6 Months Ended

Jun. 30, 2012

FAIR VALUE MEASUREMENTS [Abstract]

Fair Value, Measurement Inputs, Disclosure [Text Block]

The following assets and liabilities are measured at fair value:



	June 30, 2012
	Level 1			Level 2			Level 3		Total
	(Thousands of Dollars)
Other current assets:
Product imbalances	$	448		$	—		$	—	$	448
Commodity derivatives	44,605			1,270			—		45,875
Other long-term assets, net:
Commodity derivatives	—			9,096			—		9,096
Accrued liabilities:
Product imbalances	(450		)	—			—		(450		)
Commodity derivatives	(26,790		)	(10,347		)	—		(37,137		)
Interest rate swaps	—			(37,291		)	—		(37,291		)
Other long-term liabilities:
Commodity derivatives	—			(1,345		)	—		(1,345		)
Total	$	17,813		$	(38,617	)	$	—	$	(20,804	)



	December 31, 2011
	Level 1			Level 2			Level 3		Total
	(Thousands of Dollars)
Other current assets:
Product imbalances	$	2,117		$	—		$	—	$	2,117
Commodity derivatives	10,282			1,830			—		12,112
Other long-term assets, net:
Commodity derivatives	—			27,084			—		27,084
Interest rate swaps	—			2,335			—		2,335
Accrued liabilities:
Product imbalances	(1,469		)	—			—		(1,469		)
Commodity derivatives	(5,424		)	—			—		(5,424		)
Interest rate swaps	—			(22,009		)	—		(22,009		)
Other long-term liabilities:
Interest rate swaps	—			(27,190		)	—		(27,190		)
Total	$	5,506		$	(17,950	)	$	—	$	(12,444	)

Fair Value and Carrying Value of Debt [Text Block]

The estimated fair value and carrying amount of our debt was as follows:



	June 30, 2012		December 31, 2011
	(Thousands of Dollars)
Fair value	$	2,648,915	$	2,377,565
Carrying amount	$	2,624,868	$	2,293,030

Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Table Text Block]

The following assets are measured at fair value on a non-recurring basis:



	June 30, 2012
	Level 1	Level 2	Level 3		Total
	(Thousands of Dollars)
Long-lived assets held for sale - Asphalt Operations	—	—	$	227,000	$	227,000
Long-lived assets held for sale - other	—	—	$	2,847	$	2,847

- Definition

Tabular disclosure of the fair value measurement of assets and liabilities which includes [financial] instruments measured at fair value that are classified in stockholders' equity. Such assets and liabilities may be measured on a recurring or nonrecurring basis. The disclosures which may be required or desired include: (1) for assets and liabilities measured on a recurring basis, disclosure may include: (a) the fair value measurements at the reporting date; (b) the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets or liabilities (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3); (c) for fair value measurements using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (i) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (ii) purchases, sales, issuances, and settlements (net); (iii) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs); (d) the amount of the total gains or losses for the period in subparagraph (c) (i) above included in earnings (or changes in net assets) that are attributable to the change in unrealized gains or losses relating to those assets and liabilities still held at the reporting date and a description of where those unrealized gains or losses are reported in the statement of income (or activities); (e) the valuation technique(s) used to measure fair value and a discussion of changes in valuation techniques, if any, during the period and (2) for assets and liabilities that are measured at fair value on a nonrecurring basis (for example, impaired assets) disclosure may include, in addition to (a) above: (a) the reasons for the fair value measurements recorded; (b) the same as (b) above; (c) for fair value measurements using significant unobservable inputs (Level 3), a description of the inputs and the information used to develop the inputs; and (d) the valuation technique(s) used to measure fair value and a discussion of changes, if any, in the valuation technique(s) used to measure similar assets and/or liabilities in prior periods. Where the quoted price in an active market for the identical liability is not available, the Level 1 input is the quoted price of an identical liability when traded as an asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 10
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 32
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 33
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 6
-Footnote 4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19207-110258

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19190-110258

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19279-110258

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19296-110258

+ Details

DERIVATIVES AND RISK MANAGEMENT ACTIVITIES (Tables)

6 Months Ended

Jun. 30, 2012

DERIVATIVES AND RISK MANAGEMENT ACTIVITIES [Abstract]

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Text Block]

The fair values of our derivative instruments included in our consolidated balance sheets were as follows:



		Asset Derivatives				Liability Derivatives
	Balance Sheet Location	June 30, 2012		December 31, 2011		June 30, 2012			December 31, 2011
		(Thousands of Dollars)
Derivatives Designated as Hedging Instruments:
Commodity contracts	Other current assets	$	5,776	$	36,116	$	(5,010	)	$	(33,616	)
Commodity contracts	Other long-term assets, net	36,782		86,052		(27,220		)	(66,175		)
Interest rate swaps	Other long-term assets, net	—		2,335		—			—
Commodity contracts	Accrued liabilities	35,863		—		(50,514		)	—
Interest rate swaps	Accrued liabilities	—		—		(37,291		)	(22,009		)
Commodity contracts	Other long-term liabilities	9,652		—		(16,496		)	—
Interest rate swaps	Other long-term liabilities	—		—		—			(27,190		)
Total		88,073		124,503		(136,531		)	(148,990		)

Derivatives Not Designated as Hedging Instruments:
Commodity contracts	Other current assets	91,480		15,568		(46,371		)	(5,956		)
Commodity contracts	Other long-term assets, net	13,921		7,207		(14,387		)	—
Commodity contracts	Accrued liabilities	32,997		519		(55,483		)	(5,943		)
Commodity contracts	Other long-term liabilities	20,279		—		(14,780		)	—
Total		158,677		23,294		(131,021		)	(11,899		)

Total Derivatives		$	246,750	$	147,797	$	(267,552	)	$	(160,889	)

Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Text Block]

The earnings impact of our derivative activity was as follows:



Derivatives Designated as Fair Value Hedging Instruments	Income Statement Location	Amount of Gain (Loss) Recognized in Income on Derivative (Effective Portion)			Amount of Gain (Loss) Recognized in Income on Hedged Item			Amount of Gain (Loss) Recognized in Income on Derivative (Ineffective Portion)
		(Thousands of Dollars)
Three months ended June 30, 2012:
Interest rate swaps	Interest expense, net	$	(19,573	)	$	19,573		$	—
Commodity contracts	Cost of product sales	5,222			(5,837		)	(615		)
Total		$	(14,351	)	$	13,736		$	(615	)

Three months ended June 30, 2011
Interest rate swaps	Interest expense, net	$	14,528		$	(14,812	)	$	(284	)
Commodity contracts	Cost of product sales	1,002			(1,650		)	(648		)
Total		$	15,530		$	(16,462	)	$	(932	)

Six months ended June 30, 2012:
Interest rate swaps	Interest expense, net	$	(17,345	)	$	17,345		$	—
Commodity contracts	Cost of product sales	2,635			(3,447		)	(812		)
Total		$	(14,710	)	$	13,898		$	(812	)

Six months ended June 30, 2011:
Interest rate swaps	Interest expense, net	$	8,614		$	(8,852	)	$	(238	)
Commodity contracts	Cost of product sales	(11,064		)	10,720			(344		)
Total		$	(2,450	)	$	1,868		$	(582	)



Derivatives Designated as Cash Flow Hedging Instruments	Amount of Gain (Loss) Recognized in OCI on Derivative (Effective Portion)			Income Statement Location (a)	Amount of Gain (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)			Amount of Gain (Loss) Recognized in Income on Derivative (Ineffective Portion)
	(Thousands of Dollars)				(Thousands of Dollars)
Three months ended June 30, 2012:
Interest rate swaps	$	(16,749	)	Interest expense, net	$	(629	)	$	—
Commodity contracts	4,461			Cost of product sales	(8,518		)	—
Total	$	(12,288	)		$	(9,147	)	$	—

Three months ended June 30, 2011
Interest rate swaps	$	(15,708	)	Interest expense, net	$	—		$	—
Commodity contracts	(16,454		)	Cost of product sales	(1,225		)	—
Total	$	(32,162	)		$	(1,225	)	$	—

Six months ended June 30, 2012:
Interest rate swaps	$	(13,451	)	Interest expense, net	$	(1,052	)	$	—
Commodity contracts	(52,660		)	Cost of product sales	(15,862		)	4,010
Total	$	(66,111	)		$	(16,914	)	$	4,010

Six months ended June 30, 2011:
Interest rate swaps	$	(12,830	)	Interest expense, net	$	—		$	—
Commodity contracts	(16,454		)	Cost of product sales	(1,225		)	—
Total	$	(29,284	)		$	(1,225	)	$	—


(a)	Amounts are included in specified location for both the gain (loss) reclassified from accumulated other comprehensive income (OCI) into income (effective portion) and the gain (loss) recognized in income on derivative (ineffective portion).



Derivatives Not Designated as Hedging Instruments	Income Statement Location	Amount of Gain (Loss) Recognized in Income
		(Thousands of Dollars)
Three months ended June 30, 2012:
Commodity contracts	Revenues	$	(8,164	)
Commodity contracts	Cost of product sales	28,255
		$	20,091

Three months ended June 30, 2011
Commodity contracts	Revenues	$	(29	)
Commodity contracts	Cost of product sales	4,462
		$	4,433

Six months ended June 30, 2012:
Commodity contracts	Revenues	$	(7,654	)
Commodity contracts	Cost of product sales	23,937
		$	16,283

Six months ended June 30, 2011:
Commodity contracts	Revenues	$	235
Commodity contracts	Cost of product sales	(11,167		)
Commodity contracts	Operating expenses	46
		$	(10,886	)

- Definition

Tabular disclosure of the location and amount of gains and losses reported in the statement of financial performance, or when applicable, the statement of financial position. For example, (a) gains and losses recognized in the income statement on derivative instruments designated and qualifying as hedging instruments in fair value hedges and related hedged items designated and qualifying in fair value hedges and (b) gains and losses initially recognized in other comprehensive income on derivative instruments designated and qualifying as cash flow hedges.

+ References + Details

RELATED PARTY TRANSACTIONS (Tables)

6 Months Ended

Jun. 30, 2012

The following table summarizes information pertaining to related party transactions:



	Three Months Ended June 30,				Six Months Ended June 30,
	2012		2011		2012		2011
	(Thousands of Dollars)
Revenues	$	788	$	407	$	1,485	$	537
Operating expenses	$	37,101	$	36,801	$	76,033	$	71,910
General and administrative expenses	$	13,360	$	16,035	$	32,529	$	32,983

OTHER INCOME (EXPENSE) (Tables)

6 Months Ended

Jun. 30, 2012

OTHER INCOME (EXPENSE) [Abstract]

Schedule of Other Nonoperating Income Expense by Component [Text Block]

Other expense, net consisted of the following:



	Three Months Ended June 30,						Six Months Ended June 30,
	2012			2011			2012			2011
	(Thousands of Dollars)
Storage agreement early termination costs	$	—		$	—		—			(5,000		)
Foreign exchange (losses) gains	(2,878		)	34			(2,498		)	(576		)
Other, net	66			(1,001		)	1,054			(890		)
Other expense, net	$	(2,812	)	$	(967	)	$	(1,444	)	$	(6,466	)

PARTNERS' EQUITY (Tables)

6 Months Ended

Jun. 30, 2012

PARTNERS' EQUITY [Abstract]

Schedule of Changes in Partners' Equity

The following table summarizes changes in the carrying amount of equity attributable to NuStar Energy L.P. partners and noncontrolling interest:



	Three Months Ended June 30, 2012									Three Months Ended June 30, 2011
	NuStar Energy L.P. Partners’ Equity			Noncontrolling Interest			Total Partners’ Equity			NuStar Energy L.P. Partners’ Equity			Noncontrolling Interest			Total Partners’ Equity
	(Thousands of Dollars)
Beginning balance	$	2,751,062		$	13,156		$	2,764,218		$	2,663,017		$	15,566		$	2,678,583
Net (loss) income	(246,737		)	(73		)	(246,810		)	92,599			6			92,605
Other comprehensive (loss) income:
Foreign currency translation adjustment	(3,815		)	(235		)	(4,050		)	(842		)	(827		)	(1,669		)
Net unrealized loss on cash flow hedges	(12,288		)	—			(12,288		)	(32,162		)	—			(32,162		)
Net loss reclassified into income on cash flow hedges	9,147			—			9,147			1,225			—			1,225
Total other comprehensive (loss) income	(6,956		)	(235		)	(7,191		)	(31,779		)	(827		)	(32,606		)
Cash distributions to partners	(89,076		)	—			(89,076		)	(79,616		)	—			(79,616		)
Other	(24		)	—			(24		)	—			—			—
Ending balance	$	2,408,269		$	12,848		$	2,421,117		$	2,644,221		$	14,745		$	2,658,966



	Six Months Ended June 30, 2012									Six Months Ended June 30, 2011
	NuStar Energy L.P. Partners’ Equity			Noncontrolling Interest			Total Partners’ Equity			NuStar Energy L.P. Partners’ Equity			Noncontrolling Interest			Total Partners’ Equity
	(Thousands of Dollars)
Beginning balance	$	2,852,201		$	12,134		$	2,864,335		$	2,702,700		$	—		$	2,702,700
Acquisition	—			—			—			—			15,000			15,000
Net (loss) income	(220,386		)	(170		)	(220,556		)	121,101			20			121,121
Other comprehensive (loss) income:
Foreign currency translation adjustment	4,096			884			4,980			7,711			(275		)	7,436
Net unrealized loss on cash flow hedges	(66,111		)	—			(66,111		)	(29,284		)	—			(29,284		)
Net loss reclassified into income on cash flow hedges	16,914			—			16,914			1,225			—			1,225
Total other comprehensive (loss) income	(45,101		)	884			(44,217		)	(20,348		)	(275		)	(20,623		)
Cash distributions to partners	(178,152		)	—			(178,152		)	(159,232		)	—			(159,232		)
Other	(293		)	—			(293		)	—			—			—
Ending balance	$	2,408,269		$	12,848		$	2,421,117		$	2,644,221		$	14,745		$	2,658,966

Schedule of Calculation of Net Income Applicable to General Partner [Text Block]

The following table details the calculation of net income applicable to the general partner:



	Three Months Ended June 30,						Six Months Ended June 30,
	2012			2011			2012			2011
	(Thousands of Dollars)
Net (loss) income attributable to NuStar Energy L.P.	$	(246,737	)	$	92,599		$	(220,386	)	$	121,101
Less general partner incentive distribution	9,816			8,963			19,632			17,531
Net (loss) income after general partner incentive distribution	(256,553		)	83,636			(240,018		)	103,570
General partner interest	2		%	2		%	2		%	2		%
General partner allocation of net (loss) income after general partner incentive distribution	(5,131		)	1,673			(4,800		)	2,071
General partner incentive distribution	9,816			8,963			19,632			17,531
Net income applicable to general partner	$	4,685		$	10,636		$	14,832		$	19,602

Schedule of Distributions To General and Limited Partners [Text Block]

The following table reflects the allocation of total cash distributions to the general and limited partners applicable to the period in which the distributions were earned:



	Three Months Ended June 30,				Six Months Ended June 30,
	2012		2011		2012		2011
	(Thousands of Dollars, Except Per Unit Data)
General partner interest	$	1,782	$	1,627	$	3,564	$	3,219
General partner incentive distribution	9,816		8,963		19,632		17,531
Total general partner distribution	11,598		10,590		23,196		20,750
Limited partners’ distribution	77,478		70,749		154,956		140,205
Total cash distributions	$	89,076	$	81,339	$	178,152	$	160,955

Cash distributions per unit applicable to limited partners	$	1.095	$	1.095	$	2.190	$	2.170

- Definition

The entire disclosure for shareholders' equity, comprised of portions attributable to the parent entity and noncontrolling interest, if any, including other comprehensive income (as applicable). Including, but not limited to: (1) balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings; (2) accumulated balance for each classification of other comprehensive income and total amount of comprehensive income; (3) amount and nature of changes in separate accounts, including the number of shares authorized and outstanding, number of shares issued upon exercise and conversion, and for other comprehensive income, the adjustments for reclassifications to net income; (4) rights and privileges of each class of stock authorized; (5) basis of treasury stock, if other than cost, and amounts paid and accounting treatment for treasury stock purchased significantly in excess of market; (6) dividends paid or payable per share and in the aggregate for each class of stock for each period presented; (7) dividend restrictions and accumulated preferred dividends in arrears (in aggregate and per share amount); (8) retained earnings appropriations or restrictions, such as dividend restrictions; (9) impact of change in accounting principle, initial adoption of new accounting principle and correction of an error in previously issued financial statements; (10) shares held in trust for Employee Stock Ownership Plan (ESOP); (11) deferred compensation related to issuance of capital stock; (12) note received for issuance of stock; (13) unamortized discount on shares; (14) description, terms, and number of warrants or rights outstanding; (15) shares under subscription and subscription receivables, effective date of new retained earnings after quasi-reorganization and deficit eliminated by quasi-reorganization and, for a period of at least ten years after the effective date, the point in time from which the new retained dates; and (16) retroactive effective of subsequent change in capital structure.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 12
-Paragraph 10
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Article 3

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 4
-Section 08
-Paragraph d

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 43
-Chapter 1
-Section B
-Paragraph 7, 11A
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 129
-Paragraph 2, 3, 4, 5, 6, 7, 8
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Article 4

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 15
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 29, 30, 31
-Article 5

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section E

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section C

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

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-Name Accounting Standards Codification
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Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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-Paragraph 11
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Reference 16: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 17: http://www.xbrl.org/2003/role/presentationRef
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Reference 20: http://www.xbrl.org/2003/role/presentationRef
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Reference 21: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Preferred Stock
-URI http://asc.fasb.org/extlink&oid=6521494

Reference 22: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29-31)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 23: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section S99
-Paragraph 4
-Subparagraph (SAB TOPIC 4.C)
-URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187143-122770

+ Details

NET INCOME PER UNIT (Tables)

6 Months Ended

Jun. 30, 2012

NET INCOME PER UNIT [Abstract]

Schedule of Net Income Per Unit [Text Block]

The following table details the calculation of earnings per unit:



	Three Months Ended June 30,					Six Months Ended June 30,
	2012			2011		2012			2011
	(Thousands of Dollars, Except Unit and Per Unit Data)
Net (loss) income attributable to NuStar Energy L.P.	$	(246,737	)	$	92,599	$	(220,386	)	$	121,101
Less general partner distribution (including IDR)	11,598			10,590		23,196			20,750
Less limited partner distribution	77,478			70,749		154,956			140,205
Distributions (greater than) less than earnings	$	(335,813	)	$	11,260	$	(398,538	)	$	(39,854	)

General partner earnings:
Distributions	$	11,598		$	10,590	$	23,196		$	20,750
Allocation of distributions (greater than) less than earnings (2%)	(6,717		)	225		(7,972		)	(798		)
Total	$	4,881		$	10,815	$	15,224		$	19,952

Limited partner earnings:
Distributions	$	77,478		$	70,749	$	154,956		$	140,205
Allocation of distributions (greater than) less than earnings (98%)	(329,096		)	11,035		(390,566		)	(39,056		)
Total	$	(251,618	)	$	81,784	$	(235,610	)	$	101,149

Weighted-average limited partner units outstanding	70,756,078			64,610,549		70,756,078			64,610,549

Net (loss) income per unit applicable to limited partners	$	(3.56	)	$	1.27	$	(3.33	)	$	1.57

STATEMENTS OF CASH FLOWS (Tables)

6 Months Ended

Jun. 30, 2012

STATEMENTS OF CASH FLOWS [Abstract]

Schedule of Changes in Current Assets and Liabilities [Text Block]

Changes in current assets and current liabilities were as follows:



	Six Months Ended June 30,
	2012			2011
	(Thousands of Dollars)
Decrease (increase) in current assets:
Accounts receivable	$	60,424		$	(139,110	)
Inventories	(76,778		)	(239,766		)
Income tax receivable	2,216			—
Other current assets	(43,458		)	(17,759		)
Increase (decrease) in current liabilities:
Accounts payable	(31,345		)	202,229
Payable to related party	10,836			5,133
Accrued interest payable	(2,188		)	11
Accrued liabilities	4,260			(16,068		)
Taxes other than income tax	649			3,124
Income tax payable	(704		)	470
Changes in current assets and current liabilities	$	(76,088	)	$	(201,736	)

Schedule of Supplemental Cash Flow Information [Text Block]

Cash flows related to interest and income taxes were as follows:



	Six Months Ended June 30,
	2012		2011
	(Thousands of Dollars)
Cash paid for interest, net of amount capitalized	$	55,639	$	53,684
Cash paid for income taxes, net of tax refunds received	$	15,265	$	7,070

INCOME TAXES (Tables)

6 Months Ended

Jun. 30, 2012

INCOME TAXES [Abstract]

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

The tax effects of significant temporary differences representing deferred income tax assets and liabilities were as follows:



	June 30, 2012			December 31, 2011
	(Thousands of Dollars)
Deferred income tax assets:
Net operating losses	$	18,000		$	17,089
Environmental and legal reserves	4,675			14,822
Capital loss	672			1,044
Valuation allowance	(272		)	(1,161		)
Total deferred income tax assets	23,075			31,794

Deferred income tax liabilities:
Property, plant and equipment	(53,248		)	(57,392		)
Other	(1,423		)	(698		)
Total deferred income tax liabilities	(54,671		)	(58,090		)

Net deferred income tax liability	$	(31,596	)	$	(26,296	)

Reported on the Consolidated Balance Sheets as:
Deferred income tax asset	$	—		$	9,141
Deferred income tax liability	(31,596		)	(35,437		)
Net deferred income tax liability	$	(31,596	)	$	(26,296	)

SEGMENT INFORMATION (Tables)

6 Months Ended

Jun. 30, 2012

SEGMENT INFORMATION [Abstract]

Schedule of Segment Reporting Information, by Segment [Text Block]

Results of operations for the reportable segments were as follows:



	Three Months Ended June 30,						Six Months Ended June 30,
	2012			2011			2012			2011
	(Thousands of Dollars)
Revenues:
Storage:
Third parties	$	133,187		$	127,646		$	260,874		$	252,899
Intersegment	18,818			11,491			35,863			22,883
Related party	788			407			1,485			537
Total storage	152,793			139,544			298,222			276,319
Transportation:
Third parties	74,607			71,562			152,368			144,572
Intersegment	1,011			—			1,011			—
Total transportation	75,618			71,562			153,379			144,572
Asphalt and fuels marketing:
Third parties	1,693,323			1,389,569			3,222,870			2,425,792
Intersegment	178			749			307			4,594
Total asphalt and fuels marketing	1,693,501			1,390,318			3,223,177			2,430,386
Consolidation and intersegment eliminations	(20,007		)	(12,240		)	(37,181		)	(27,477		)
Total revenues	$	1,901,905		$	1,589,184		$	3,637,597		$	2,823,800

Operating income:
Storage	$	54,127		$	42,848		$	110,274		$	91,544
Transportation	31,870			30,163			68,821			64,560
Asphalt and fuels marketing	(292,539		)	72,153			(308,314		)	72,271
Consolidation and intersegment eliminations	(25		)	(110		)	(26		)	(45		)
Total segment operating (loss) income	(206,567		)	145,054			(129,245		)	228,330
General and administrative expenses	(23,135		)	(26,119		)	(50,322		)	(52,102		)
Other depreciation and amortization expense	(2,039		)	(1,584		)	(3,853		)	(3,146		)
Other asset impairment loss	(3,295		)	—			(3,295		)	—
Gain on legal settlement	28,738			—			28,738			—
Total operating (loss) income	$	(206,298	)	$	117,351		$	(157,977	)	$	173,082

Schedule of Segment Reporting Information Assets By Segment [Text Block]

Total assets by reportable segment were as follows:



	June 30, 2012		December 31, 2011
	(Thousands of Dollars)
Storage	$	2,599,600	$	2,597,904
Transportation	1,304,160		1,251,474
Asphalt and fuels marketing	1,490,107		1,717,960
Total segment assets	5,393,867		5,567,338
Other partnership assets	323,731		313,852
Total consolidated assets	$	5,717,598	$	5,881,190

- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

+ References + Details

CONDENSED CONSOLIDATING FINANCIAL STATEMENTS (Tables)

6 Months Ended

Jun. 30, 2012

CONDENSED CONSOLIDATING FINANCIAL STATEMENTS [Abstract]

Condensed Consolidating Balance Sheet Current Period [Text Block]

Condensed Consolidating Balance Sheets

June 30, 2012

(Thousands of Dollars)



	NuStar Energy		NuStar Logistics			NuPOP		Non-Guarantor Subsidiaries (a)		Eliminations			Consolidated
Assets
Cash and cash equivalents	$	200	$	10		$	—	$	33,937	$	—		$	34,147
Receivables, net	—		67,205			5,258		452,598		(37,496		)	487,565
Inventories	—		2,600			1,917		249,118		(25		)	253,610
Income tax receivable	—		—			—		1,952		—			1,952
Other current assets	—		13,612			603		71,657		—			85,872
Assets held for sale	—		2,847			—		638,112		—			640,959
Intercompany receivable	—		1,175,398			567,747		—		(1,743,145		)	—
Total current assets	200		1,261,672			575,525		1,447,374		(1,780,666		)	1,504,105
Property, plant and equipment, net	—		1,270,143			590,411		1,218,877		—			3,079,431
Intangible assets, net	—		1,941			—		26,285		—			28,226
Goodwill	—		18,094			170,652		633,955		—			822,701
Investment in wholly owned subsidiaries	2,988,453		(108,393		)	1,214,739		2,298,588		(6,393,387		)	—
Investment in joint venture	—		—			—		68,188		—			68,188
Deferred income tax asset	—		—			—		—		—			—
Other long-term assets, net	496		162,050			26,329		26,072		—			214,947
Total assets	$	2,989,149	$	2,605,507		$	2,577,656	$	5,719,339	$	(8,174,053	)	$	5,717,598
Liabilities and Partners’ Equity
Current portion of long-term debt	$	—	$	232,860		$	252,092	$	32,928	$	—		$	517,880
Payables	59		45,965			20,040		412,221		(37,496		)	440,789
Accrued interest payable	—		26,408			1,224		13		—			27,645
Accrued liabilities	606		46,672			2,562		69,928		—			119,768
Taxes other than income tax	—		5,805			2,892		5,638		—			14,335
Income tax payable	—		133			—		2,384		—			2,517
Intercompany payable	507,707		—			—		1,235,438		(1,743,145		)	—
Total current liabilities	508,372		357,843			278,810		1,758,550		(1,780,641		)	1,122,934
Long-term debt, less current portion	—		2,106,988			—		—		—			2,106,988
Long-term payable to related party	—		8,673			—		6,468		—			15,141
Deferred income tax liability	—		—			—		31,596		—			31,596
Other long-term liabilities	—		2,790			239		16,793		—			19,822
Total partners’ equity	2,480,777		129,213			2,298,607		3,905,932		(6,393,412		)	2,421,117
Total liabilities and partners’ equity	$	2,989,149	$	2,605,507		$	2,577,656	$	5,719,339	$	(8,174,053	)	$	5,717,598


(a)	Non-guarantor subsidiaries are wholly owned by NuStar Energy, NuStar Logistics or NuPOP.

Condensed Consolidating Balance Sheet Prior Period [Text Block]

Condensed Consolidating Balance Sheets

December 31, 2011

(Thousands of Dollars)



	NuStar Energy		NuStar Logistics		NuPOP		Non-Guarantor Subsidiaries (a)		Eliminations			Consolidated
Assets
Cash and cash equivalents	$	139	$	14	$	—	$	17,344	$	—		$	17,497
Receivables, net	—		27,533		6,877		514,477		(1,079		)	547,808
Inventories	—		2,311		6,370		579,152		(48		)	587,785
Income tax receivable	—		—		—		4,148		—			4,148
Other current assets	—		9,796		2,423		31,466		—			43,685
Intercompany receivable	—		893,268		780,066		—		(1,673,334		)	—
Total current assets	139		932,922		795,736		1,146,587		(1,674,461		)	1,200,923
Property, plant and equipment, net	—		1,150,318		596,229		1,683,921		—			3,430,468
Intangible assets, net	—		1,966		—		36,957		—			38,923
Goodwill	—		18,094		170,652		657,971		—			846,717
Investment in wholly owned subsidiaries	3,386,170		220,513		1,159,620		2,216,792		(6,983,095		)	—
Investment in joint venture	—		—		—		66,687		—			66,687
Deferred income tax asset	—		—		—		9,141		—			9,141
Other long-term assets, net	364		192,007		26,329		69,631		—			288,331
Total assets	$	3,386,673	$	2,515,820	$	2,748,566	$	5,887,687	$	(8,657,556	)	$	5,881,190
Liabilities and Partners’ Equity
Current portion of long-term debt	$	—	$	331,317	$	1,060	$	32,582	$	—		$	364,959
Payables	—		32,590		11,512		418,038		(1,079		)	461,061
Accrued interest payable	—		21,332		8,489		12		—			29,833
Accrued liabilities	829		42,788		4,661		22,992		—			71,270
Taxes other than income tax	125		5,661		2,678		4,991		—			13,455
Income tax payable	—		352		7		2,863		—			3,222
Intercompany payable	506,111		—		—		1,167,223		(1,673,334		)	—
Total current liabilities	507,065		434,040		28,407		1,648,701		(1,674,413		)	943,800
Long-term debt, less current portion	—		1,424,891		503,180		—		—			1,928,071
Long-term payable to related party	—		8,027		—		6,475		—			14,502
Deferred income tax liability	—		—		—		35,437		—			35,437
Other long-term liabilities	—		29,939		220		64,886		—			95,045
Total partners’ equity	2,879,608		618,923		2,216,759		4,132,188		(6,983,143		)	2,864,335
Total liabilities and partners’ equity	$	3,386,673	$	2,515,820	$	2,748,566	$	5,887,687	$	(8,657,556	)	$	5,881,190


(a)	Non-guarantor subsidiaries are wholly owned by NuStar Energy, NuStar Logistics or NuPOP.

Condensed Consolidating Statements of Comprehensive Income Current Period [Table Text Block]

Condensed Consolidating Statements of Comprehensive (Loss) Income

For the Three Months Ended June 30, 2012

(Thousands of Dollars)



	NuStar Energy			NuStar Logistics			NuPOP			Non-Guarantor Subsidiaries (a)			Eliminations			Consolidated
Revenues	$	—		$	83,835		$	45,191		$	1,781,558		$	(8,679	)	$	1,901,905
Costs and expenses	385			51,364			31,739			2,033,428			(8,713		)	2,108,203
Operating (loss) income	(385		)	32,471			13,452			(251,870		)	34			(206,298		)
Equity in earnings of subsidiaries	(246,352		)	(303,735		)	36,613			45,770			467,704			—
Equity in earnings of joint venture	—			—			—			2,381			—			2,381
Interest expense, net	—			(20,685		)	(2,828		)	(307		)	—			(23,820		)
Other income, net	—			103			(109		)	(2,806		)	—			(2,812		)
Income (loss) before income tax expense	(246,737		)	(291,846		)	47,128			(206,832		)	467,738			(230,549		)
Income tax expense	—			51			1,328			14,882			—			16,261
Net income (loss)	(246,737		)	(291,897		)	45,800			(221,714		)	467,738			(246,810		)
Less net loss attributable to noncontrolling interest	—			—			—			(73		)	—			(73		)
Net income (loss) attributable to NuStar Energy L.P.	$	(246,737	)	$	(291,897	)	$	45,800		$	(221,641	)	$	467,738		$	(246,737	)

Comprehensive income (loss)	$	(246,737	)	$	(308,017	)	$	45,800		$	(212,785	)	$	467,738		$	(254,001	)
Less comprehensive income attributable to noncontrolling interest	—			—			—			(308		)	—			(308		)
Comprehensive income (loss) attributable to NuStar Energy L.P.	$	(246,737	)	$	(308,017	)	$	45,800		$	(212,477	)	$	467,738		$	(253,693	)


(a)	Non-guarantor subsidiaries are wholly owned by NuStar Energy, NuStar Logistics or NuPOP.

Condensed Consolidating Statements of Comprehensive Income Prior Period [Table Text Block]

Condensed Consolidating Statements of Comprehensive Income

For the Three Months Ended June 30, 2011

(Thousands of Dollars)



	NuStar Energy			NuStar Logistics			NuPOP			Non-Guarantor Subsidiaries (a)			Eliminations			Consolidated
Revenues	$	—		$	67,771		$	40,102		$	1,486,632		$	(5,321	)	$	1,589,184
Costs and expenses	386			43,059			30,606			1,402,737			(4,955		)	1,471,833
Operating (loss) income	(386		)	24,712			9,496			83,895			(366		)	117,351
Equity in earnings of subsidiaries	92,985			51,532			28,143			47,293			(219,953		)	—
Equity in earnings of joint venture	—			—			—			2,010			—			2,010
Interest expense, net	—			(14,236		)	(5,759		)	(627		)	—			(20,622		)
Other income (loss), net	—			126			6			(1,099		)	—			(967		)
Income (loss) before income tax expense	92,599			62,134			31,886			131,472			(220,319		)	97,772
Income tax expense	—			664			—			4,503			—			5,167
Net income (loss)	92,599			61,470			31,886			126,969			(220,319		)	92,605
Less net income attributable to noncontrolling interest	—			—			—			6			—			6
Net income (loss) attributable to NuStar Energy L.P.	$	92,599		$	61,470		$	31,886		$	126,963		$	(220,319	)	$	92,599

Comprehensive income (loss)	$	92,599		$	45,762		$	31,886		$	110,071		$	(220,319	)	$	59,999
Less comprehensive loss attributable to noncontrolling interest	—			—			—			(821		)	—			(821		)
Comprehensive income (loss) attributable to NuStar Energy L.P.	$	92,599		$	45,762		$	31,886		$	110,892		$	(220,319	)	$	60,820


(a)	Non-guarantor subsidiaries are wholly owned by NuStar Energy, NuStar Logistics or NuPOP.

Condensed Consolidating Statements of Comprehensive Income Current Period YTD [Table Text Block]

Condensed Consolidating Statements of Comprehensive (Loss) Income

For the Six Months Ended June 30, 2012

(Thousands of Dollars)



	NuStar Energy			NuStar Logistics			NuPOP			Non-Guarantor Subsidiaries (a)			Eliminations			Consolidated
Revenues	$	—		$	164,056		$	94,283		$	3,394,161		$	(14,903	)	$	3,637,597
Costs and expenses	820			97,738			66,696			3,645,254			(14,934		)	3,795,574
Operating (loss) income	(820		)	66,318			27,587			(251,093		)	31			(157,977		)
Equity in earnings of subsidiaries	(219,566		)	(328,906		)	62,518			81,827			404,127			—
Equity in earnings of joint venture	—			—			—			4,767			—			4,767
Interest expense, net	—			(38,763		)	(6,999		)	(408		)	—			(46,170		)
Other income, net	—			292			73			(1,809		)	—			(1,444		)
Income (loss) before income tax expense	(220,386		)	(301,059		)	83,179			(166,716		)	404,158			(200,824		)
Income tax expense	—			141			1,330			18,261			—			19,732
Net income (loss)	(220,386		)	(301,200		)	81,849			(184,977		)	404,158			(220,556		)
Less net loss attributable to noncontrolling interest	—			—			—			(170		)	—			(170		)
Net income (loss) attributable to NuStar Energy L.P.	$	(220,386	)	$	(301,200	)	$	81,849		$	(184,807	)	$	404,158		$	(220,386	)

Comprehensive income (loss)	$	(220,386	)	$	(313,599	)	$	81,849		$	(216,795	)	$	404,158		$	(264,773	)
Less comprehensive income attributable to noncontrolling interest	—			—			—			714			—			714
Comprehensive income (loss) attributable to NuStar Energy L.P.	$	(220,386	)	$	(313,599	)	$	81,849		$	(217,509	)	$	404,158		$	(265,487	)


(a)	Non-guarantor subsidiaries are wholly owned by NuStar Energy, NuStar Logistics or NuPOP.

Condensed Consolidating Statements of Comprehensive Income Prior Period YTD [Table Text Block]

Condensed Consolidating Statements of Comprehensive Income

For the Six Months Ended June 30, 2011

(Thousands of Dollars)



	NuStar Energy			NuStar Logistics			NuPOP			Non-Guarantor Subsidiaries (a)			Eliminations			Consolidated
Revenues	$	—		$	133,929		$	90,449		$	2,616,938		$	(17,516	)	$	2,823,800
Costs and expenses	801			86,331			66,579			2,514,606			(17,599		)	2,650,718
Operating (loss) income	(801		)	47,598			23,870			102,332			83			173,082
Equity in earnings of subsidiaries	121,902			34,542			56,663			95,838			(308,945		)	—
Equity in earnings of joint venture	—			—			—			4,398			—			4,398
Interest expense, net	—			(28,024		)	(11,551		)	(1,504		)	—			(41,079		)
Other income (loss), net	—			183			19			(6,668		)	—			(6,466		)
Income (loss) before income tax expense	121,101			54,299			69,001			194,396			(308,862		)	129,935
Income tax expense	—			1,027			—			7,787			—			8,814
Net income (loss)	121,101			53,272			69,001			186,609			(308,862		)	121,121
Less net income attributable to noncontrolling interest	—			—			—			20			—			20
Net income (loss) attributable to NuStar Energy L.P.	$	121,101		$	53,272		$	69,001		$	186,589		$	(308,862	)	$	121,101

Comprehensive income (loss)	$	121,101		$	40,442		$	69,001		$	178,816		$	(308,862	)	$	100,498
Less comprehensive loss attributable to noncontrolling interest	—			—			—			(255		)	—			(255		)
Comprehensive income (loss) attributable to NuStar Energy L.P.	$	121,101		$	40,442		$	69,001		$	179,071		$	(308,862	)	$	100,753


(a)	Non-guarantor subsidiaries are wholly owned by NuStar Energy, NuStar Logistics or NuPOP.

Condensed Consolidating Statements of Cash Flows Current Period [Text Block]

Condensed Consolidating Statements of Cash Flows

For the Six Months Ended June 30, 2012

(Thousands of Dollars)



	NuStar Energy			NuStar Logistics			NuPOP			Non-Guarantor Subsidiaries (a)			Eliminations			Consolidated
Net cash provided by (used in) operating activities	$	177,042		$	25,107		$	45,687		$	(30,157	)	$	(185,561	)	$	32,118
Cash flows from investing activities:
Capital expenditures	—			(153,890		)	(7,745		)	(49,504		)	—			(211,139		)
Acquisitions	—			—			—			—			—			—
Investment in other long-term assets	—			—			—			(2,286		)	—			(2,286		)
Proceeds from sale or disposition of assets	—			143			19			30,844			—			31,006
Net cash used in investing activities	—			(153,747		)	(7,726		)	(20,946		)	—			(182,419		)
Cash flows from financing activities:
Debt borrowings	—			1,433,678			—			—			—			1,433,678
Debt repayments	—			(1,081,758		)	(250,000		)	—			—			(1,331,758		)
Senior note offering, net	—			247,408			—			—			—			247,408
Distributions to unitholders and general partner	(178,152		)	(178,152		)	—			(7,417		)	185,569			(178,152		)
Payments for termination of interest rate swaps	—			(5,678		)	—			—			—			(5,678		)
Net intercompany borrowings (repayments)	1,596			(283,646		)	212,039			70,019			(8		)	—
Other, net	(425		)	(1,720		)	—			1,737			—			(408		)
Net cash provided by (used in) financing activities	(176,981		)	130,132			(37,961		)	64,339			185,561			165,090
Effect of foreign exchange rate changes on cash	—			(1,496		)	—			3,357			—			1,861
Net (decrease) increase in cash and cash equivalents	61			(4		)	—			16,593			—			16,650
Cash and cash equivalents as of the beginning of the period	139			14			—			17,344			—			17,497
Cash and cash equivalents as of the end of the period	$	200		$	10		$	—		$	33,937		$	—		$	34,147


(a)	Non-guarantor subsidiaries are wholly owned by NuStar Energy, NuStar Logistics or NuPOP.

Condensed Consolidating Statements of Cash Flows Prior Period [Text Block]

Condensed Consolidating Statements of Cash Flows

For the Six Months Ended June 30, 2011

(Thousands of Dollars)



	NuStar Energy			NuStar Logistics			NuPOP			Non-Guarantor Subsidiaries (a)			Eliminations			Consolidated
Net cash provided by (used in) operating activities	$	158,188		$	54,572		$	18,441		$	(70,129	)	$	(159,248	)	$	1,824
Cash flows from investing activities:
Capital expenditures	—			(99,307		)	(1,802		)	(55,285		)	—			(156,394		)
Acquisition	—			—			—			(100,448		)	—			(100,448		)
Investment in other long-term assets	—			—			—			(5,580		)	—			(5,580		)
Investment in subsidiaries	(57,300		)	(47,869		)	(56,727		)	(56,727		)	218,623			—
Proceeds from sale or disposition of assets	—			40			44			205			—			289
Net cash used in investing activities	(57,300		)	(147,136		)	(58,485		)	(217,835		)	218,623			(262,133		)
Cash flows from financing activities:
Debt borrowings	—			617,364			—			—			—			617,364
Debt repayments	—			(257,593		)	—			—			—			(257,593		)
Distributions to unitholders and general partner	(159,232		)	(159,232		)	—			(16		)	159,248			(159,232		)
Contributions from (distributions to) affiliates	57,300			(57,300		)	56,727			161,896			(218,623		)	—
Proceeds from termination of interest rate swaps	—			9,112			—			—			—			9,112
Net intercompany borrowings (repayments)	1,044			(131,914		)	(16,683		)	147,553			—			—
Other, net	—			(2,268		)	—			(543		)	—			(2,811		)
Net cash (used in) provided by financing activities	(100,888		)	18,169			40,044			308,890			(59,375		)	206,840
Effect of foreign exchange rate changes on cash	—			6,849			—			(5,625		)	—			1,224
Net (decrease) increase in cash and cash equivalents	—			(67,546		)	—			15,301			—			(52,245		)
Cash and cash equivalents as of the beginning of the period	53			107,655			—			73,413			—			181,121
Cash and cash equivalents as of the end of the period	$	53		$	40,109		$	—		$	88,714		$	—		$	128,876


(a)	Non-guarantor subsidiaries are wholly owned by NuStar Energy, NuStar Logistics or NuPOP.

ORGANIZATION AND BASIS OF PRESENTATION Narrative 1 (Details)	Jun. 30, 2012
Organizational Structure And Operations [Line Items]
Total ownership interest held by general partner	0.162

ASSETS HELD FOR SALE AND ASSET IMPAIRMENTS Table 1 (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Asset impairment loss	$ 249,646	$ 0	$ 249,646	$ 0
Asphalt Operations
Asset impairment loss			244,225
Asphalt Operations \| Property, plant and equipment, net
Asset impairment loss			232,759
Asphalt Operations \| Intangible assets, net
Asset impairment loss			6,564
Asphalt Operations \| Other long-term assets, net
Asset impairment loss			4,902
Other \| Property, plant and equipment, net
Asset impairment loss			$ 5,421

ASSETS HELD FOR SALE AND ASSET IMPAIRMENTS Table 2 (Details) - USD ($) $ in Thousands	Jun. 30, 2012	Dec. 31, 2011
Long Lived Assets Held-for-sale [Line Items]
Assets held for sale	$ 640,959	$ 0
Asphalt Operations
Long Lived Assets Held-for-sale [Line Items]
Assets held for sale	638,112
Asphalt Operations \| Inventories
Long Lived Assets Held-for-sale [Line Items]
Assets held for sale	410,977
Asphalt Operations \| Other current assets
Long Lived Assets Held-for-sale [Line Items]
Assets held for sale	135
Asphalt Operations \| Property, plant and equipment, net
Long Lived Assets Held-for-sale [Line Items]
Assets held for sale	204,946
Asphalt Operations \| Other long-term assets, net
Long Lived Assets Held-for-sale [Line Items]
Assets held for sale	22,054
Other \| Property, plant and equipment, net
Long Lived Assets Held-for-sale [Line Items]
Assets held for sale	$ 2,847

ASSETS HELD FOR SALE AND ASSET IMPAIRMENTS Narrative 1 (Details) - Asphalt Operations $ in Millions	6 Months Ended
	Jun. 30, 2012 USD ($)
Long Lived Assets Held-for-sale [Line Items]
Percent Voting Interest To Be Sold	50.00%
Sale price of equity interests	$ 175.0
Maximum Amount Available Under Credit Facility to Related Party	$ 250.0
Term of credit facility to related party	seven years
Maximum Amount Of Guarantees To Related Party	$ 150.0

ASSETS HELD FOR SALE AND ASSET IMPAIRMENTS Narrative 2 (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Goodwill impairment loss	$ 22,132	$ 0	$ 22,132	$ 0
Asset impairment loss	$ 249,646	$ 0	249,646	$ 0
Asphalt Operations
Asset impairment loss			244,225
Storage Assets \| Other
Asset impairment loss			2,100
Other Corporate Assets \| Other
Asset impairment loss			$ 3,300

- Definition

Loss recognized during the period that results from the write-down of goodwill after comparing the implied fair value of reporting unit goodwill with the carrying amount of that goodwill. Goodwill is assessed at least annually for impairment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 47
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 20
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph e
-Clause 5
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 43
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6905597&loc=d3e13854-109267

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13777-109266

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=6905597&loc=d3e13816-109267

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 72
-Subparagraph d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

DISPOSITIONS (Details) $ in Thousands	6 Months Ended
DISPOSITIONS (Details) $ in Thousands	Jun. 30, 2012 USD ($)	Jun. 30, 2011 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale or disposition of assets	$ 31,006	$ 289
Five Terminal Sale [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Date	April 16, 2012
Number of terminals sold	5.0
Aggregate storage capacity of terminals sold, in barrels	1,800,000
Proceeds from sale or disposition of assets	$ 30,800

INVENTORIES Table (Details) - USD ($) $ in Thousands	Jun. 30, 2012	Dec. 31, 2011
Schedule of Inventory [Line Items]
Crude oil	$ 23,013	$ 157,297
Finished products	223,608	421,288
Materials and supplies	6,989	9,200
Total	$ 253,610	$ 587,785

DEBT Narrative (Details) - USD ($) $ in Thousands	1 Months Ended		6 Months Ended
DEBT Narrative (Details) - USD ($) $ in Thousands	Jul. 31, 2012	Jun. 29, 2012	Jun. 30, 2012	Jun. 30, 2011
Debt Instrument [Line Items]
Proceeds from senior note offering, net of issuance costs			$ 247,408	$ 0
Revolving Credit Agreements [Member]
Debt Instrument [Line Items]
Amount repaid during the period			1,009,900
Amount borrowed during the period			1,332,900
2007 Revolving Credit Agreement
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 1,200,000
Term			five-year
2012 Revolving Credit Agreement
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 1,500,000
Term			five-year
Maximum available for Euro borrowings			$ 250,000
Amount borrowed during the period			$ 588,600
Interest rate at period end			1.90%
Interest rate terms			The 2012 Revolving Credit Agreement bears interest, at our option, based on either an alternative base rate or a LIBOR-based rate. The interest rate on the 2012 Revolving Credit Agreement is subject to adjustment if our debt rating is downgraded (or subsequently upgraded) by certain credit rating agencies.
Current remaining borrowing capacity			$ 668,400
Covenant terms		modify the consolidated debt coverage ratio to include up to 20% of cash distributions for such joint ventures and unconsolidated subsidiaries (the Amendment). In addition, the Amendment provides that we will be in compliance with the consolidated debt coverage ratio as long as it does not exceed 6.50-to-1.00 for the rolling period ended June 30, 2012 or 6.00-to-1.00 for the rolling period ending September 30, 2012. However, the consolidated debt coverage ratio will revert to a maximum of 5.00-to-1.00 for any four consecutive quarters, if our Asphalt Operations are owned by an unconsolidated joint venture.	as of the end of each rolling period, consisting of any period of four consecutive fiscal quarters, a consolidated debt coverage ratio (consolidated indebtedness to consolidated EBITDA, as defined in the 2012 Revolving Credit Agreement) not to exceed 5.00-to-1.00; provided, for the rolling period ending June 30th of each year, the maximum consolidated debt coverage ratio will increase to 5.50-to-1.00. Moreover, if we consummate an acquisition for an aggregate net consideration of at least $50.0 million, the maximum consolidated debt coverage ratio will increase to 5.50-to-1.00 for two rolling periods.
Debt coverage ratio			6.0
UK term loan
Debt Instrument [Line Items]
Amount outstanding			$ 21,000
4.75% Senior Notes
Debt Instrument [Line Items]
Issuance date			February 2, 2012
Face amount			$ 250,000
Stated interest rate			4.75%
Proceeds from senior note offering, net of issuance costs			$ 247,400
Description of use of proceeds			repay the outstanding principal amount of NuPOP’s 7.75% senior notes due February 15, 2012
Payment terms			The interest on the 4.75% senior notes is payable semi-annually in arrears on February 1 and August 1 of each year
Date of first required interest payment			August 1, 2012
Maturity date			Feb. 01, 2022
GoZone Bonds
Debt Instrument [Line Items]
Interest rate at period end			0.20%
Amount received from trustee			$ 34,500
Amount remaining in trust			138,900
6.875% senior notes
Debt Instrument [Line Items]
Face amount			$ 100,000
Stated interest rate			6.875%
Maturity date			Jul. 15, 2012
Senior note repayments			$ 100,000
Short Term Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity			20,000
Amount repaid during the period			71,900
Amount borrowed during the period			$ 71,900
Line of credit termination date	Jul. 02, 2012
7.65% senior notes
Debt Instrument [Line Items]
Interest rate terms			subject to adjustment if our debt rating is downgraded (or subsequently upgraded) by certain credit rating agencies.
Face amount			$ 350,000
Stated interest rate			7.65%
Interest rate increase due to change in credit rating	0.25%

COMMITMENTS AND CONTINGENCIES Narrative (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Jul. 31, 2012	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Loss Contingencies [Line Items]
Loss Contingency Accrual, at Carrying Value		$ 13,300		$ 13,300
Gain on legal settlement		28,738	$ 0	28,738	$ 0
Grace Energy Corporation Matter [Member]
Loss Contingencies [Line Items]
Court Judgment, Remediation Costs Not Recoverable by Plaintiff		3,500		3,500
Court Judgment, Attorney Costs Awarded to Plaintiff		1,800		1,800
Deptartment of Justice Estimated Remediation Expenses		$ 71,900		71,900
Payments for Legal Settlements	$ 13,100
Gain on legal settlement				$ 28,700

FAIR VALUE MEASUREMENTS Table 1 (Details) - Recurring Fair Value Measurements - USD ($) $ in Thousands	Jun. 30, 2012	Dec. 31, 2011
Fair Value Assets and Liabilities Measured on Recurring Basis
Fair Value Assets and Liabilities Measured on Recurring Basis	$ (20,804)	$ (12,444)
Fair Value Level 1
Fair Value Assets and Liabilities Measured on Recurring Basis
Fair Value Assets and Liabilities Measured on Recurring Basis	17,813	5,506
Fair Value Level 2
Fair Value Assets and Liabilities Measured on Recurring Basis
Fair Value Assets and Liabilities Measured on Recurring Basis	(38,617)	(17,950)
Fair Value Level 3
Fair Value Assets and Liabilities Measured on Recurring Basis
Fair Value Assets and Liabilities Measured on Recurring Basis	0	0
Other current assets
Fair Value Assets and Liabilities Measured on Recurring Basis
Product Imbalances	448	2,117
Commodity derivatives	45,875	12,112
Other current assets \| Fair Value Level 1
Fair Value Assets and Liabilities Measured on Recurring Basis
Product Imbalances	448	2,117
Commodity derivatives	44,605	10,282
Other current assets \| Fair Value Level 2
Fair Value Assets and Liabilities Measured on Recurring Basis
Product Imbalances	0	0
Commodity derivatives	1,270	1,830
Other current assets \| Fair Value Level 3
Fair Value Assets and Liabilities Measured on Recurring Basis
Product Imbalances	0	0
Commodity derivatives	0	0
Other long-term assets, net
Fair Value Assets and Liabilities Measured on Recurring Basis
Commodity derivatives	9,096	27,084
Interest Rate Swaps		2,335
Other long-term assets, net \| Fair Value Level 1
Fair Value Assets and Liabilities Measured on Recurring Basis
Commodity derivatives	0	0
Interest Rate Swaps		0
Other long-term assets, net \| Fair Value Level 2
Fair Value Assets and Liabilities Measured on Recurring Basis
Commodity derivatives	9,096	27,084
Interest Rate Swaps		2,335
Other long-term assets, net \| Fair Value Level 3
Fair Value Assets and Liabilities Measured on Recurring Basis
Commodity derivatives	0	0
Interest Rate Swaps		0
Accrued liabilities
Fair Value Assets and Liabilities Measured on Recurring Basis
Product Imbalances	(450)	(1,469)
Commodity derivatives	(37,137)	(5,424)
Interest Rate Swaps	(37,291)	(22,009)
Accrued liabilities \| Fair Value Level 1
Fair Value Assets and Liabilities Measured on Recurring Basis
Product Imbalances	(450)	(1,469)
Commodity derivatives	(26,790)	(5,424)
Interest Rate Swaps	0	0
Accrued liabilities \| Fair Value Level 2
Fair Value Assets and Liabilities Measured on Recurring Basis
Product Imbalances	0	0
Commodity derivatives	(10,347)	0
Interest Rate Swaps	(37,291)	(22,009)
Accrued liabilities \| Fair Value Level 3
Fair Value Assets and Liabilities Measured on Recurring Basis
Product Imbalances	0	0
Commodity derivatives	0	0
Interest Rate Swaps	0	0
Other long-term liabilities
Fair Value Assets and Liabilities Measured on Recurring Basis
Commodity derivatives	(1,345)
Interest Rate Swaps		(27,190)
Other long-term liabilities \| Fair Value Level 1
Fair Value Assets and Liabilities Measured on Recurring Basis
Commodity derivatives	0
Interest Rate Swaps		0
Other long-term liabilities \| Fair Value Level 2
Fair Value Assets and Liabilities Measured on Recurring Basis
Commodity derivatives	(1,345)
Interest Rate Swaps		(27,190)
Other long-term liabilities \| Fair Value Level 3
Fair Value Assets and Liabilities Measured on Recurring Basis
Commodity derivatives	$ 0
Interest Rate Swaps		$ 0

FAIR VALUE MEASUREMENTS Table 2 (Details) - USD ($) $ in Thousands	Jun. 30, 2012	Dec. 31, 2011
Fair Value and Carrying Value of Debt [Line Items]
Fair value	$ 2,648,915	$ 2,377,565
Carrying amount	$ 2,624,868	$ 2,293,030

FAIR VALUE MEASUREMENTS Table 3 (Details) - Nonrecurring Fair Value Measurements - Assets held for sale $ in Thousands	Jun. 30, 2012 USD ($)
Fair Value Assets and Liabilities Measured on Nonrecurring Basis
Long-lived assets held for sale - Asphalt Operations	$ 227,000
Long-lived assets held for sale - other	2,847
Fair Value Level 1
Fair Value Assets and Liabilities Measured on Nonrecurring Basis
Long-lived assets held for sale - Asphalt Operations	0
Long-lived assets held for sale - other	0
Fair Value Level 2
Fair Value Assets and Liabilities Measured on Nonrecurring Basis
Long-lived assets held for sale - Asphalt Operations	0
Long-lived assets held for sale - other	0
Fair Value Level 3
Fair Value Assets and Liabilities Measured on Nonrecurring Basis
Long-lived assets held for sale - Asphalt Operations	227,000
Long-lived assets held for sale - other	$ 2,847

FAIR VALUE MEASUREMENTS Narrative (Details)	6 Months Ended
FAIR VALUE MEASUREMENTS Narrative (Details)	Jun. 30, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items]
Fair Value, Assets Held-for-sale, Long Lived, Valuation Techniques	We estimated the fair value of the long-lived assets associated with our Asphalt Operations reporting unit as the sum of the purchase price to be paid by Lindsay Goldberg for the Class A Interests of Asphalt JV and the fair value of the Class B Interests of Asphalt JV that we would retain. We determined the fair value of the Class B Interests using a combination of valuation methods, including an income approach method, a market approach method and an option model. The significant inputs used in the income approach method include estimated future cash flows and a discount rate equal to the estimated weighted average cost of capital of 14.0%. Inputs used in the market approach method include observable multiples applied to key financial statistics derived from peer companies. Inputs to the option model include an underlying asset value, a five-year expected date of liquidity, a discount rate of 0.7%, an expected volatility of 62.0% and exercise prices consistent with the distribution and liquidation rights for the Class A Interests and Class B Interests. The other long-lived assets held for sale in the table above represent certain corporate assets that we wrote down to their estimated sales price.

DERIVATIVES AND RISK MANAGEMENT ACTIVITIES Table 1 (Details) - USD ($) $ in Thousands	Jun. 30, 2012	Dec. 31, 2011
Derivatives, Fair Value
Asset Derivatives	$ 246,750	$ 147,797
Liability Derivatives	(267,552)	(160,889)
Designated as Hedging Instrument
Derivatives, Fair Value
Asset Derivatives	88,073	124,503
Liability Derivatives	(136,531)	(148,990)
Designated as Hedging Instrument \| Commodity contracts \| Other current assets
Derivatives, Fair Value
Asset Derivatives	5,776	36,116
Liability Derivatives	(5,010)	(33,616)
Designated as Hedging Instrument \| Commodity contracts \| Other long-term assets, net
Derivatives, Fair Value
Asset Derivatives	36,782	86,052
Liability Derivatives	(27,220)	(66,175)
Designated as Hedging Instrument \| Commodity contracts \| Accrued liabilities
Derivatives, Fair Value
Asset Derivatives	35,863	0
Liability Derivatives	(50,514)	0
Designated as Hedging Instrument \| Commodity contracts \| Other long-term liabilities
Derivatives, Fair Value
Asset Derivatives	9,652	0
Liability Derivatives	(16,496)	0
Designated as Hedging Instrument \| Interest rate swaps \| Other long-term assets, net
Derivatives, Fair Value
Asset Derivatives	0	2,335
Liability Derivatives	0	0
Designated as Hedging Instrument \| Interest rate swaps \| Accrued liabilities
Derivatives, Fair Value
Asset Derivatives	0	0
Liability Derivatives	(37,291)	(22,009)
Designated as Hedging Instrument \| Interest rate swaps \| Other long-term liabilities
Derivatives, Fair Value
Asset Derivatives	0	0
Liability Derivatives	0	(27,190)
Not Designated as Hedging Instrument
Derivatives, Fair Value
Asset Derivatives	158,677	23,294
Liability Derivatives	(131,021)	(11,899)
Not Designated as Hedging Instrument \| Commodity contracts \| Other current assets
Derivatives, Fair Value
Asset Derivatives	91,480	15,568
Liability Derivatives	(46,371)	(5,956)
Not Designated as Hedging Instrument \| Commodity contracts \| Other long-term assets, net
Derivatives, Fair Value
Asset Derivatives	13,921	7,207
Liability Derivatives	(14,387)	0
Not Designated as Hedging Instrument \| Commodity contracts \| Accrued liabilities
Derivatives, Fair Value
Asset Derivatives	32,997	519
Liability Derivatives	(55,483)	(5,943)
Not Designated as Hedging Instrument \| Commodity contracts \| Other long-term liabilities
Derivatives, Fair Value
Asset Derivatives	20,279	0
Liability Derivatives	$ (14,780)	$ 0

DERIVATIVES AND RISK MANAGEMENT ACTIVITIES Table 2 (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Fair Value Hedges
Derivative Instruments, Gain (Loss)
Amount of gain (loss) recognized in income on derivative	$ (14,351)	$ 15,530	$ (14,710)	$ (2,450)
Amount of gain (loss) recognized in income on hedged item	13,736	(16,462)	13,898	1,868
Amount of gain (loss) recognized in income on derivative (ineffective portion)	(615)	(932)	(812)	(582)
Fair Value Hedges \| Interest rate swaps \| Interest expense, net
Derivative Instruments, Gain (Loss)
Amount of gain (loss) recognized in income on derivative	(19,573)	14,528	(17,345)	8,614
Amount of gain (loss) recognized in income on hedged item	19,573	(14,812)	17,345	(8,852)
Amount of gain (loss) recognized in income on derivative (ineffective portion)	0	(284)	0	(238)
Fair Value Hedges \| Commodity contracts \| Cost of product sales
Derivative Instruments, Gain (Loss)
Amount of gain (loss) recognized in income on derivative	5,222	1,002	2,635	(11,064)
Amount of gain (loss) recognized in income on hedged item	(5,837)	(1,650)	(3,447)	10,720
Amount of gain (loss) recognized in income on derivative (ineffective portion)	(615)	(648)	(812)	(344)
Cash Flow Hedges
Derivative Instruments, Gain (Loss)
Amount of gain (loss) recognized in OCI on derivative (effective portion)	(12,288)	(32,162)	(66,111)	(29,284)
Amount of gain (loss) reclassified from accumulated OCI into income (effective portion)	(9,147)	(1,225)	(16,914)	(1,225)
Amount of gain (loss) recognized in income on derivative (ineffective portion)	0	0	4,010	0
Cash Flow Hedges \| Interest rate swaps \| Interest expense, net
Derivative Instruments, Gain (Loss)
Amount of gain (loss) reclassified from accumulated OCI into income (effective portion)	(629)	0	(1,052)	0
Amount of gain (loss) recognized in income on derivative (ineffective portion)	0	0	0	0
Cash Flow Hedges \| Interest rate swaps \| Other comprehensive income
Derivative Instruments, Gain (Loss)
Amount of gain (loss) recognized in OCI on derivative (effective portion)	(16,749)	(15,708)	(13,451)	(12,830)
Cash Flow Hedges \| Commodity contracts \| Cost of product sales
Derivative Instruments, Gain (Loss)
Amount of gain (loss) reclassified from accumulated OCI into income (effective portion)	(8,518)	(1,225)	(15,862)	(1,225)
Amount of gain (loss) recognized in income on derivative (ineffective portion)	0	0	4,010	0
Cash Flow Hedges \| Commodity contracts \| Other comprehensive income
Derivative Instruments, Gain (Loss)
Amount of gain (loss) recognized in OCI on derivative (effective portion)	4,461	(16,454)	(52,660)	(16,454)
Nondesignated Derivatives
Derivative Instruments, Gain (Loss)
Amount of gain (loss) recognized in income on derivative	20,091	4,433	16,283	(10,886)
Nondesignated Derivatives \| Commodity contracts \| Cost of product sales
Derivative Instruments, Gain (Loss)
Amount of gain (loss) recognized in income on derivative	28,255	4,462	23,937	(11,167)
Nondesignated Derivatives \| Commodity contracts \| Revenues
Derivative Instruments, Gain (Loss)
Amount of gain (loss) recognized in income on derivative	$ (8,164)	$ (29)	$ (7,654)	235
Nondesignated Derivatives \| Commodity contracts \| Operating expenses
Derivative Instruments, Gain (Loss)
Amount of gain (loss) recognized in income on derivative				$ 46

DERIVATIVES AND RISK MANAGEMENT ACTIVITIES Narrative (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2012 USD ($)	Jun. 30, 2011 USD ($)	Dec. 31, 2011 USD ($)
Derivative [Line Items]
New and Terminated Interest Rate Swap, Notional Amount	$ 200,000
New and Terminated Interest Rate Swaps Hedged Debt Instruments	4.75% senior notes
New interest rate swaps, interest rate received	4.75%
New interest rate swaps, pay rate	variable rate based on one month USD LIBOR plus a percentage that varied with each agreement
Notional amount of fixed-to-floating interest rate swaps	$ 0		$ 270,000
Proceeds from (payments for) termination of interest rate swaps	(5,678)	$ 9,112
Notional amount of forward-starting interest rate swaps	$ 275,000		$ 500,000
Volume of commodity contracts (in barrels)	32,000,000		27,800,000
Gain (loss) to be reclassified during next 12 months, commodity contracts	$ (9,100)
Gain (loss) to be reclassified during next 12 months, forward-starting interest rate swaps	$ (2,500)
Maximum length of time hedged, commodity contracts	three years
Maximum length of time hedged, forward-starting interest rate swaps	one year
Interest Rate Contract Fair Value Hedge [Member]
Derivative [Line Items]
Terminated interest rate swaps, hedged debt instruments	4.80% senior notes
Terminated interest rate swaps, notional amount	$ 270,000
Proceeds from (payments for) termination of interest rate swaps	$ 19,700
Interest Rate Contract Cash Flow Hedge [Member]
Derivative [Line Items]
Terminated interest rate swaps, hedged debt instruments	4.75% senior notes
Terminated interest rate swaps, notional amount	$ 225,000
Proceeds from (payments for) termination of interest rate swaps	$ (25,400)

RELATED PARTY TRANSACTIONS Table (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Related Party Transaction [Line Items]
Revenues	$ 788	$ 407	$ 1,485	$ 537
Operating expenses	37,101	36,801	76,033	71,910
General and administrative expenses	$ 13,360	$ 16,035	$ 32,529	$ 32,983

- Definition

Revenues arising from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, such as pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's' management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

+ References + Details

RELATED PARTY TRANSACTIONS Narrative (Details) - USD ($) $ in Thousands	Jun. 30, 2012	Dec. 31, 2011
Related Party Transaction [Line Items]
Payable to NuStar GP, LLC	$ 17,562	$ 6,735
Long-term payable to NuStar GP, LLC	$ 15,141	$ 14,502

- Definition

Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer).

+ References + Details

OTHER INCOME (EXPENSE) Table (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Components of Other Income and Expense Nonoperating [Line Items]
Storage agreement early termination costs	$ 0	$ 0	$ 0	$ (5,000)
Foreign exchange gains (losses)	(2,878)	34	(2,498)	(576)
Other, net	66	(1,001)	1,054	(890)
Other income (expense), net	$ (2,812)	$ (967)	$ (1,444)	$ (6,466)

- Definition

The aggregate foreign currency transaction gain (loss) (both realized and unrealized) included in determining net income for the reporting period. Excludes foreign currency transactions designated as hedges of net investment in a foreign entity and intercompany foreign currency transactions that are of a long-term nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements. For certain enterprises, primarily banks, that are dealers in foreign exchange, foreign currency transaction gains (losses) may be disclosed as dealer gains (losses).

+ References + Details

PARTNERS' EQUITY Table 1 (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
PARTNERS' EQUITY Table 1 (Details) - USD ($) $ in Thousands	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning balance	$ 2,764,218	$ 2,678,583	$ 2,864,335	$ 2,702,700
Acquisition			0	15,000
Net income (loss)	(246,810)	92,605	(220,556)	121,121
Other comprehensive income (loss):
Foreign currency translation adjustment	(4,050)	(1,669)	4,980	7,436
Net unrealized (loss) gain on cash flow hedges	(12,288)	(32,162)	(66,111)	(29,284)
Net (gain) loss reclassified into income on cash flow hedges	9,147	1,225	16,914	1,225
Total other comprehensive income (loss)	(7,191)	(32,606)	(44,217)	(20,623)
Cash distributions to partners	(89,076)	(79,616)	(178,152)	(159,232)
Other	(24)	0	(293)	0
Ending balance	2,421,117	2,658,966	2,421,117	2,658,966
NuStar Energy L.P. Partners' Equity
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning balance	2,751,062	2,663,017	2,852,201	2,702,700
Acquisition			0	0
Net income (loss)	(246,737)	92,599	(220,386)	121,101
Other comprehensive income (loss):
Foreign currency translation adjustment	(3,815)	(842)	4,096	7,711
Net unrealized (loss) gain on cash flow hedges	(12,288)	(32,162)	(66,111)	(29,284)
Net (gain) loss reclassified into income on cash flow hedges	9,147	1,225	16,914	1,225
Total other comprehensive income (loss)	(6,956)	(31,779)	(45,101)	(20,348)
Cash distributions to partners	(89,076)	(79,616)	(178,152)	(159,232)
Other	(24)	0	(293)	0
Ending balance	2,408,269	2,644,221	2,408,269	2,644,221
Noncontrolling Interest
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning balance	13,156	15,566	12,134	0
Acquisition			0	15,000
Net income (loss)	(73)	6	(170)	20
Other comprehensive income (loss):
Foreign currency translation adjustment	(235)	(827)	884	(275)
Net unrealized (loss) gain on cash flow hedges	0	0	0	0
Net (gain) loss reclassified into income on cash flow hedges	0	0	0	0
Total other comprehensive income (loss)	(235)	(827)	884	(275)
Cash distributions to partners	0	0	0	0
Other	0	0	0	0
Ending balance	$ 12,848	$ 14,745	$ 12,848	$ 14,745

PARTNERS' EQUITY Table 2 (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
PARTNERS' EQUITY Table 2 (Details) - USD ($) $ in Thousands	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Net Income Allocation [Line Items]
Net income (loss) attributable to NuStar Energy L.P.	$ (246,737)	$ 92,599	$ (220,386)	$ 121,101
Less general partner incentive distribution	9,816	8,963	19,632	17,531
Net (loss) income after general partner incentive distribution	$ (256,553)	$ 83,636	$ (240,018)	$ 103,570
General partner interest	2.00%	2.00%	2.00%	2.00%
General partner allocation of net (loss) income after general partner incentive distribution	$ (5,131)	$ 1,673	$ (4,800)	$ 2,071
General partner incentive distribution	9,816	8,963	19,632	17,531
Net income applicable to general partner	$ 4,685	$ 10,636	$ 14,832	$ 19,602

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 87-21
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 10, 15
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 28, 29, 30
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 5
-Section 03
-Paragraph 19

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 20
-Article 9

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Net Income
-URI http://asc.fasb.org/extlink&oid=6518256

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Other Comprehensive Income
-URI http://asc.fasb.org/extlink&oid=6519514

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.18)
-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04.19)
-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e565-108580

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04.22)
-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 16: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph A7
-Appendix A

+ Details

PARTNERS' EQUITY Table 3 (Details) $ in Thousands	3 Months Ended		6 Months Ended
PARTNERS' EQUITY Table 3 (Details) $ in Thousands	Jun. 30, 2012 USD ($) $ / shares	Jun. 30, 2011 USD ($) $ / shares	Jun. 30, 2012 USD ($) $ / shares	Jun. 30, 2011 USD ($) $ / shares
Distributions Made to Limited Partners and General Partner [Line Items]
General partner interest	$ 1,782	$ 1,627	$ 3,564	$ 3,219
General partner incentive distribution	9,816	8,963	19,632	17,531
Total general partner distribution	11,598	10,590	23,196	20,750
Limited partners' distribution	77,478	70,749	154,956	140,205
Total cash distributions	$ 89,076	$ 81,339	$ 178,152	$ 160,955
Cash distributions per unit applicable to limited partners \| $ / shares	1.095	1.095	2.190	2.170

PARTNERS' EQUITY Narrative (Details) $ in Thousands	3 Months Ended		6 Months Ended
PARTNERS' EQUITY Narrative (Details) $ in Thousands	Jun. 30, 2012 USD ($) $ / shares	Jun. 30, 2011 USD ($) $ / shares	Jun. 30, 2012 USD ($) $ / shares	Jun. 30, 2011 USD ($) $ / shares
Distributions Made to Limited Partners and General Partner [Line Items]
Distribution paid date	May 11, 2012
Cash distributions paid to partners \| $	$ 89,076	$ 79,616	$ 178,152	$ 159,232
Distribution paid per limited partnership unit \| $ / shares	$ 1.095
Cash distributions per unit applicable to limited partners (distribution earned) \| $ / shares	1.095	1.095	2.190	2.170
Distribution payment date (distribution earned)	Aug. 10, 2012
Distribution date of record (distribution earned)	Aug. 07, 2012
Total cash distributions (distribution earned) \| $	$ 89,076	$ 81,339	$ 178,152	$ 160,955

NET INCOME PER UNIT Table (Details) $ in Thousands	3 Months Ended		6 Months Ended
NET INCOME PER UNIT Table (Details) $ in Thousands	Jun. 30, 2012 USD ($) $ / shares shares	Jun. 30, 2011 USD ($) $ / shares shares	Jun. 30, 2012 USD ($) $ / shares shares	Jun. 30, 2011 USD ($) $ / shares shares
Schedule Of Net Income Per Unit [Line Items]
Net income (loss) attributable to NuStar Energy L.P.	$ (246,737)	$ 92,599	$ (220,386)	$ 121,101
Less general partner distribution (including IDR)	11,598	10,590	23,196	20,750
Less limited partner distribution	77,478	70,749	154,956	140,205
Distributions less than (greater than) earnings	(335,813)	11,260	(398,538)	(39,854)
General partner earnings:
Distributions	11,598	10,590	23,196	20,750
Allocation of distributions less than (greater than) earnings (2%)	(6,717)	225	(7,972)	(798)
Total	4,881	10,815	15,224	19,952
Limited partner earnings:
Limited partners' distribution	77,478	70,749	154,956	140,205
Allocation of distributions less than (greater than) earnings (98%)	(329,096)	11,035	(390,566)	(39,056)
Total	$ (251,618)	$ 81,784	$ (235,610)	$ 101,149
Weighted-average limited partner units outstanding \| shares	70,756,078	64,610,549	70,756,078	64,610,549
Net income (loss) per unit applicable to limited partners \| $ / shares	(3.56)	1.27	(3.33)	1.57

NET INCOME PER UNIT Parentheticals (Details)	6 Months Ended
NET INCOME PER UNIT Parentheticals (Details)	Jun. 30, 2012
Schedule Of Net Income Per Unit [Line Items]
General Partner Ownership Interest of Limited Partnership	2.00%
Limited Partners Ownership Interest	98.00%

STATEMENTS OF CASH FLOWS Table 1 (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Decrease (increase) in current assets:
Accounts receivable	$ 60,424	$ (139,110)
Inventories	(76,778)	(239,766)
Income taxes receivable	2,216	0
Other current assets	(43,458)	(17,759)
Increase (decrease) in current liabilities:
Accounts payable	(31,345)	202,229
Payable to related party	10,836	5,133
Accrued interest payable	(2,188)	11
Accrued liabilities	4,260	(16,068)
Taxes other than income tax	649	3,124
Income tax payable	(704)	470
Changes in current assets and current liabilities	$ (76,088)	$ (201,736)

STATEMENTS OF CASH FLOWS Table 2 (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Supplemental Cash Flow Information [Line Items]
Cash paid for interest, net of amount capitalized	$ 55,639	$ 53,684
Cash paid for income taxes, net of tax refunds received	$ 15,265	$ 7,070

INCOME TAXES Table (Details) - USD ($) $ in Thousands	Jun. 30, 2012	Dec. 31, 2011
Deferred income tax assets:
Net operating losses	$ 18,000	$ 17,089
Environmental and legal reserves	4,675	14,822
Capital loss	672	1,044
Valuation allowance	(272)	(1,161)
Total deferred income tax assets	23,075	31,794
Deferred income tax liabilities:
Property, plant and equipment	(53,248)	(57,392)
Other	(1,423)	(698)
Total deferred income tax liabilities	(54,671)	(58,090)
Reported on the Consolidated Balance Sheets as:
Deferred income tax asset	0	9,141
Deferred income tax liability	(31,596)	(35,437)
Net deferred income tax liability	$ (31,596)	$ (26,296)

INCOME TAXES Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
INCOME TAXES Narrative (Details) - USD ($) $ in Thousands	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Tax disclosures [Line Items]
Gain on legal settlement	$ 28,738	$ 0	$ 28,738	$ 0
Income tax expense	16,261	$ 5,167	19,732	$ 8,814
Grace Energy Corporation Matter [Member]
Tax disclosures [Line Items]
Gain on legal settlement			28,700
Income tax expense			10,100
Canada 1 [Member]
Tax disclosures [Line Items]
Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority	1,000		1,000
Income Tax Examination, Penalties and Interest Expense			$ 2,200
Income Tax Examination, Year(s) under Examination			2006 through 2011
Canada 2 [Member]
Tax disclosures [Line Items]
Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority	$ 1,300		$ 1,300
Income Tax Examination, Penalties and Interest Expense			$ 700
Income Tax Examination, Year(s) under Examination			2003 to 2009

SEGMENT INFORMATION Table 1 (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Revenues:
Related party	$ 788	$ 407	$ 1,485	$ 537
Total revenues	1,901,905	1,589,184	3,637,597	2,823,800
Operating income:
Consolidation and intersegment eliminations	(25)	(110)	(26)	(45)
Total segment operating income	(206,567)	145,054	(129,245)	228,330
General and administrative expenses	(23,135)	(26,119)	(50,322)	(52,102)
Other depreciation and amortization expense	(2,039)	(1,584)	(3,853)	(3,146)
Other asset impairment loss	(3,295)	0	(3,295)	0
Gain on legal settlement	28,738	0	28,738	0
Total operating income (loss)	(206,298)	117,351	(157,977)	173,082
Storage Segment
Revenues:
Third parties	133,187	127,646	260,874	252,899
Intersegment	18,818	11,491	35,863	22,883
Related party	788	407	1,485	537
Total	152,793	139,544	298,222	276,319
Operating income:
Operating income (loss)	54,127	42,848	110,274	91,544
Transportation Segment
Revenues:
Third parties	74,607	71,562	152,368	144,572
Intersegment	1,011	0	1,011	0
Total	75,618	71,562	153,379	144,572
Operating income:
Operating income (loss)	31,870	30,163	68,821	64,560
Asphalt and Fuels Marketing Segment
Revenues:
Third parties	1,693,323	1,389,569	3,222,870	2,425,792
Intersegment	178	749	307	4,594
Total	1,693,501	1,390,318	3,223,177	2,430,386
Operating income:
Operating income (loss)	(292,539)	72,153	(308,314)	72,271
Intersegment Elimination
Revenues:
Intersegment	$ (20,007)	$ (12,240)	$ (37,181)	$ (27,477)

SEGMENT INFORMATION Table 2 (Details) - USD ($) $ in Thousands	Jun. 30, 2012	Dec. 31, 2011
Segment Information
Total consolidated assets	$ 5,717,598	$ 5,881,190
Total segment assets	5,393,867	5,567,338
Storage Segment
Segment Information
Total consolidated assets	2,599,600	2,597,904
Transportation Segment
Segment Information
Total consolidated assets	1,304,160	1,251,474
Asphalt and Fuels Marketing Segment
Segment Information
Total consolidated assets	1,490,107	1,717,960
Other partnership assets
Segment Information
Total consolidated assets	$ 323,731	$ 313,852

CONDENSED CONSOLIDATING FINANCIAL STATEMENTS Table 1 (Details) - USD ($) $ in Thousands	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010
Assets
Cash and cash equivalents	$ 34,147		$ 17,497	$ 128,876		$ 181,121
Receivables, net	487,565		547,808
Inventories	253,610		587,785
Income tax receivable	1,952		4,148
Other current assets	85,872		43,685
Assets held for sale	640,959		0
Intercompany receivable	0		0
Total current assets	1,504,105		1,200,923
Property, plant and equipment, net	3,079,431		3,430,468
Intangible assets, net	28,226		38,923
Goodwill	822,701		846,717
Investment in wholly owned subsidiaries	0		0
Investment in joint venture	68,188		66,687
Deferred income tax asset	0		9,141
Other long-term assets, net	214,947		288,331
Total assets	5,717,598		5,881,190
Liabilities and Partners' Equity
Current portion of long-term debt	517,880		364,959
Payables	440,789		461,061
Accrued interest payable	27,645		29,833
Accrued liabilities	119,768		71,270
Taxes other than income tax	14,335		13,455
Income tax payable	2,517		3,222
Intercompany payable	0		0
Total current liabilities	1,122,934		943,800
Long-term debt, less current portion	2,106,988		1,928,071
Long-term payable to related party	15,141		14,502
Deferred income tax liability	31,596		35,437
Other long-term liabilities	19,822		95,045
Total partners’ equity	2,421,117	$ 2,764,218	2,864,335	2,658,966	$ 2,678,583	2,702,700
Total liabilities and partners' equity	5,717,598		5,881,190
NuStar Energy
Assets
Cash and cash equivalents	200		139	53		53
Receivables, net	0		0
Inventories	0		0
Income tax receivable	0		0
Other current assets	0		0
Assets held for sale	0
Intercompany receivable	0		0
Total current assets	200		139
Property, plant and equipment, net	0		0
Intangible assets, net	0		0
Goodwill	0		0
Investment in wholly owned subsidiaries	2,988,453		3,386,170
Investment in joint venture	0		0
Deferred income tax asset	0		0
Other long-term assets, net	496		364
Total assets	2,989,149		3,386,673
Liabilities and Partners' Equity
Current portion of long-term debt	0		0
Payables	59		0
Accrued interest payable	0		0
Accrued liabilities	606		829
Taxes other than income tax	0		125
Income tax payable	0		0
Intercompany payable	507,707		506,111
Total current liabilities	508,372		507,065
Long-term debt, less current portion	0		0
Long-term payable to related party	0		0
Deferred income tax liability	0		0
Other long-term liabilities	0		0
Total partners’ equity	2,480,777		2,879,608
Total liabilities and partners' equity	2,989,149		3,386,673
NuStar Logistics
Assets
Cash and cash equivalents	10		14	40,109		107,655
Receivables, net	67,205		27,533
Inventories	2,600		2,311
Income tax receivable	0		0
Other current assets	13,612		9,796
Assets held for sale	2,847
Intercompany receivable	1,175,398		893,268
Total current assets	1,261,672		932,922
Property, plant and equipment, net	1,270,143		1,150,318
Intangible assets, net	1,941		1,966
Goodwill	18,094		18,094
Investment in wholly owned subsidiaries	(108,393)		220,513
Investment in joint venture	0		0
Deferred income tax asset	0		0
Other long-term assets, net	162,050		192,007
Total assets	2,605,507		2,515,820
Liabilities and Partners' Equity
Current portion of long-term debt	232,860		331,317
Payables	45,965		32,590
Accrued interest payable	26,408		21,332
Accrued liabilities	46,672		42,788
Taxes other than income tax	5,805		5,661
Income tax payable	133		352
Intercompany payable	0		0
Total current liabilities	357,843		434,040
Long-term debt, less current portion	2,106,988		1,424,891
Long-term payable to related party	8,673		8,027
Deferred income tax liability	0		0
Other long-term liabilities	2,790		29,939
Total partners’ equity	129,213		618,923
Total liabilities and partners' equity	2,605,507		2,515,820
NuPOP
Assets
Cash and cash equivalents	0		0	0		0
Receivables, net	5,258		6,877
Inventories	1,917		6,370
Income tax receivable	0		0
Other current assets	603		2,423
Assets held for sale	0
Intercompany receivable	567,747		780,066
Total current assets	575,525		795,736
Property, plant and equipment, net	590,411		596,229
Intangible assets, net	0		0
Goodwill	170,652		170,652
Investment in wholly owned subsidiaries	1,214,739		1,159,620
Investment in joint venture	0		0
Deferred income tax asset	0		0
Other long-term assets, net	26,329		26,329
Total assets	2,577,656		2,748,566
Liabilities and Partners' Equity
Current portion of long-term debt	252,092		1,060
Payables	20,040		11,512
Accrued interest payable	1,224		8,489
Accrued liabilities	2,562		4,661
Taxes other than income tax	2,892		2,678
Income tax payable	0		7
Intercompany payable	0		0
Total current liabilities	278,810		28,407
Long-term debt, less current portion	0		503,180
Long-term payable to related party	0		0
Deferred income tax liability	0		0
Other long-term liabilities	239		220
Total partners’ equity	2,298,607		2,216,759
Total liabilities and partners' equity	2,577,656		2,748,566
Non-Guarantor Subsidiaries (a)
Assets
Cash and cash equivalents	33,937		17,344	88,714		73,413
Receivables, net	452,598		514,477
Inventories	249,118		579,152
Income tax receivable	1,952		4,148
Other current assets	71,657		31,466
Assets held for sale	638,112
Intercompany receivable	0		0
Total current assets	1,447,374		1,146,587
Property, plant and equipment, net	1,218,877		1,683,921
Intangible assets, net	26,285		36,957
Goodwill	633,955		657,971
Investment in wholly owned subsidiaries	2,298,588		2,216,792
Investment in joint venture	68,188		66,687
Deferred income tax asset	0		9,141
Other long-term assets, net	26,072		69,631
Total assets	5,719,339		5,887,687
Liabilities and Partners' Equity
Current portion of long-term debt	32,928		32,582
Payables	412,221		418,038
Accrued interest payable	13		12
Accrued liabilities	69,928		22,992
Taxes other than income tax	5,638		4,991
Income tax payable	2,384		2,863
Intercompany payable	1,235,438		1,167,223
Total current liabilities	1,758,550		1,648,701
Long-term debt, less current portion	0		0
Long-term payable to related party	6,468		6,475
Deferred income tax liability	31,596		35,437
Other long-term liabilities	16,793		64,886
Total partners’ equity	3,905,932		4,132,188
Total liabilities and partners' equity	5,719,339		5,887,687
Eliminations
Assets
Cash and cash equivalents	0		0	$ 0		$ 0
Receivables, net	(37,496)		(1,079)
Inventories	(25)		(48)
Income tax receivable	0		0
Other current assets	0		0
Assets held for sale	0
Intercompany receivable	(1,743,145)		(1,673,334)
Total current assets	(1,780,666)		(1,674,461)
Property, plant and equipment, net	0		0
Intangible assets, net	0		0
Goodwill	0		0
Investment in wholly owned subsidiaries	(6,393,387)		(6,983,095)
Investment in joint venture	0		0
Deferred income tax asset	0		0
Other long-term assets, net	0		0
Total assets	(8,174,053)		(8,657,556)
Liabilities and Partners' Equity
Current portion of long-term debt	0		0
Payables	(37,496)		(1,079)
Accrued interest payable	0		0
Accrued liabilities	0		0
Taxes other than income tax	0		0
Income tax payable	0		0
Intercompany payable	(1,743,145)		(1,673,334)
Total current liabilities	(1,780,641)		(1,674,413)
Long-term debt, less current portion	0		0
Long-term payable to related party	0		0
Deferred income tax liability	0		0
Other long-term liabilities	0		0
Total partners’ equity	(6,393,412)		(6,983,143)
Total liabilities and partners' equity	$ (8,174,053)		$ (8,657,556)

CONDENSED CONSOLIDATING FINANCIAL STATEMENTS Table 2 (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Condensed Financial Statements, Captions [Line Items]
Revenues	$ 1,901,905	$ 1,589,184	$ 3,637,597	$ 2,823,800
Costs and expenses	2,108,203	1,471,833	3,795,574	2,650,718
Operating income (loss)	(206,298)	117,351	(157,977)	173,082
Equity in earnings of subsidiaries	0	0	0	0
Equity in earnings of joint venture	2,381	2,010	4,767	4,398
Interest expense, net	(23,820)	(20,622)	(46,170)	(41,079)
Other income (expense), net	(2,812)	(967)	(1,444)	(6,466)
Income (loss) before income tax expense	(230,549)	97,772	(200,824)	129,935
Income tax expense	16,261	5,167	19,732	8,814
Net income (loss)	(246,810)	92,605	(220,556)	121,121
Less net income (loss) attributable to noncontrolling interest	(73)	6	(170)	20
Net income (loss) attributable to NuStar Energy L.P.	(246,737)	92,599	(220,386)	121,101
Comprehensive income (loss)	(254,001)	59,999	(264,773)	100,498
Less comprehensive income (loss) attributable to noncontrolling interest	(308)	(821)	714	(255)
Comprehensive income (loss) attributable to NuStar Energy L.P.	(253,693)	60,820	(265,487)	100,753
NuStar Energy
Condensed Financial Statements, Captions [Line Items]
Revenues	0	0	0	0
Costs and expenses	385	386	820	801
Operating income (loss)	(385)	(386)	(820)	(801)
Equity in earnings of subsidiaries	(246,352)	92,985	(219,566)	121,902
Equity in earnings of joint venture	0	0	0	0
Interest expense, net	0	0	0	0
Other income (expense), net	0	0	0	0
Income (loss) before income tax expense	(246,737)	92,599	(220,386)	121,101
Income tax expense	0	0	0	0
Net income (loss)	(246,737)	92,599	(220,386)	121,101
Less net income (loss) attributable to noncontrolling interest	0	0	0	0
Net income (loss) attributable to NuStar Energy L.P.	(246,737)	92,599	(220,386)	121,101
Comprehensive income (loss)	(246,737)	92,599	(220,386)	121,101
Less comprehensive income (loss) attributable to noncontrolling interest	0	0	0	0
Comprehensive income (loss) attributable to NuStar Energy L.P.	(246,737)	92,599	(220,386)	121,101
NuStar Logistics
Condensed Financial Statements, Captions [Line Items]
Revenues	83,835	67,771	164,056	133,929
Costs and expenses	51,364	43,059	97,738	86,331
Operating income (loss)	32,471	24,712	66,318	47,598
Equity in earnings of subsidiaries	(303,735)	51,532	(328,906)	34,542
Equity in earnings of joint venture	0	0	0	0
Interest expense, net	(20,685)	(14,236)	(38,763)	(28,024)
Other income (expense), net	103	126	292	183
Income (loss) before income tax expense	(291,846)	62,134	(301,059)	54,299
Income tax expense	51	664	141	1,027
Net income (loss)	(291,897)	61,470	(301,200)	53,272
Less net income (loss) attributable to noncontrolling interest	0	0	0	0
Net income (loss) attributable to NuStar Energy L.P.	(291,897)	61,470	(301,200)	53,272
Comprehensive income (loss)	(308,017)	45,762	(313,599)	40,442
Less comprehensive income (loss) attributable to noncontrolling interest	0	0	0	0
Comprehensive income (loss) attributable to NuStar Energy L.P.	(308,017)	45,762	(313,599)	40,442
NuPOP
Condensed Financial Statements, Captions [Line Items]
Revenues	45,191	40,102	94,283	90,449
Costs and expenses	31,739	30,606	66,696	66,579
Operating income (loss)	13,452	9,496	27,587	23,870
Equity in earnings of subsidiaries	36,613	28,143	62,518	56,663
Equity in earnings of joint venture	0	0	0	0
Interest expense, net	(2,828)	(5,759)	(6,999)	(11,551)
Other income (expense), net	(109)	6	73	19
Income (loss) before income tax expense	47,128	31,886	83,179	69,001
Income tax expense	1,328	0	1,330	0
Net income (loss)	45,800	31,886	81,849	69,001
Less net income (loss) attributable to noncontrolling interest	0	0	0	0
Net income (loss) attributable to NuStar Energy L.P.	45,800	31,886	81,849	69,001
Comprehensive income (loss)	45,800	31,886	81,849	69,001
Less comprehensive income (loss) attributable to noncontrolling interest	0	0	0	0
Comprehensive income (loss) attributable to NuStar Energy L.P.	45,800	31,886	81,849	69,001
Non-Guarantor Subsidiaries (a)
Condensed Financial Statements, Captions [Line Items]
Revenues	1,781,558	1,486,632	3,394,161	2,616,938
Costs and expenses	2,033,428	1,402,737	3,645,254	2,514,606
Operating income (loss)	(251,870)	83,895	(251,093)	102,332
Equity in earnings of subsidiaries	45,770	47,293	81,827	95,838
Equity in earnings of joint venture	2,381	2,010	4,767	4,398
Interest expense, net	(307)	(627)	(408)	(1,504)
Other income (expense), net	(2,806)	(1,099)	(1,809)	(6,668)
Income (loss) before income tax expense	(206,832)	131,472	(166,716)	194,396
Income tax expense	14,882	4,503	18,261	7,787
Net income (loss)	(221,714)	126,969	(184,977)	186,609
Less net income (loss) attributable to noncontrolling interest	(73)	6	(170)	20
Net income (loss) attributable to NuStar Energy L.P.	(221,641)	126,963	(184,807)	186,589
Comprehensive income (loss)	(212,785)	110,071	(216,795)	178,816
Less comprehensive income (loss) attributable to noncontrolling interest	(308)	(821)	714	(255)
Comprehensive income (loss) attributable to NuStar Energy L.P.	(212,477)	110,892	(217,509)	179,071
Eliminations
Condensed Financial Statements, Captions [Line Items]
Revenues	(8,679)	(5,321)	(14,903)	(17,516)
Costs and expenses	(8,713)	(4,955)	(14,934)	(17,599)
Operating income (loss)	34	(366)	31	83
Equity in earnings of subsidiaries	467,704	(219,953)	404,127	(308,945)
Equity in earnings of joint venture	0	0	0	0
Interest expense, net	0	0	0	0
Other income (expense), net	0	0	0	0
Income (loss) before income tax expense	467,738	(220,319)	404,158	(308,862)
Income tax expense	0	0	0	0
Net income (loss)	467,738	(220,319)	404,158	(308,862)
Less net income (loss) attributable to noncontrolling interest	0	0	0	0
Net income (loss) attributable to NuStar Energy L.P.	467,738	(220,319)	404,158	(308,862)
Comprehensive income (loss)	467,738	(220,319)	404,158	(308,862)
Less comprehensive income (loss) attributable to noncontrolling interest	0	0	0	0
Comprehensive income (loss) attributable to NuStar Energy L.P.	$ 467,738	$ (220,319)	$ 404,158	$ (308,862)

CONDENSED CONSOLIDATING FINANCIAL STATEMENTS Table 3 (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Cash flows from operating activities:
Net cash provided by (used in) operating activities	$ 32,118	$ 1,824
Cash flows from investing activities:
Capital expenditures	(211,139)	(156,394)
Acquisitions	0	(100,448)
Investment in other long-term assets	(2,286)	(5,580)
Proceeds from sale or disposition of assets	31,006	289
Investment in subsidiaries		0
Net cash used in investing activities	(182,419)	(262,133)
Cash flows from financing activities:
Debt borrowings	1,433,678	617,364
Debt repayments	(1,331,758)	(257,593)
Senior note offering, net	247,408	0
Distributions to unitholders and general partner	(178,152)	(159,232)
Contributions from (distributions to) affiliates		0
Proceeds from (payments for) termination of interest rate swaps	(5,678)	9,112
Net intercompany borrowings (repayments)	0	0
Other, net	(408)	(2,811)
Net cash provided by (used in) financing activities	165,090	206,840
Effect of foreign exchange rate changes on cash	1,861	1,224
Net increase (decrease) in cash and cash equivalents	16,650	(52,245)
Cash and cash equivalents as of the beginning of the period	17,497	181,121
Cash and cash equivalents as of the end of the period	34,147	128,876
NuStar Energy
Cash flows from operating activities:
Net cash provided by (used in) operating activities	177,042	158,188
Cash flows from investing activities:
Capital expenditures	0	0
Acquisitions	0	0
Investment in other long-term assets	0	0
Proceeds from sale or disposition of assets	0	0
Investment in subsidiaries		(57,300)
Net cash used in investing activities	0	(57,300)
Cash flows from financing activities:
Debt borrowings	0	0
Debt repayments	0	0
Senior note offering, net	0
Distributions to unitholders and general partner	(178,152)	(159,232)
Contributions from (distributions to) affiliates		57,300
Proceeds from (payments for) termination of interest rate swaps	0	0
Net intercompany borrowings (repayments)	1,596	1,044
Other, net	(425)	0
Net cash provided by (used in) financing activities	(176,981)	(100,888)
Effect of foreign exchange rate changes on cash	0	0
Net increase (decrease) in cash and cash equivalents	61	0
Cash and cash equivalents as of the beginning of the period	139	53
Cash and cash equivalents as of the end of the period	200	53
NuStar Logistics
Cash flows from operating activities:
Net cash provided by (used in) operating activities	25,107	54,572
Cash flows from investing activities:
Capital expenditures	(153,890)	(99,307)
Acquisitions	0	0
Investment in other long-term assets	0	0
Proceeds from sale or disposition of assets	143	40
Investment in subsidiaries		(47,869)
Net cash used in investing activities	(153,747)	(147,136)
Cash flows from financing activities:
Debt borrowings	1,433,678	617,364
Debt repayments	(1,081,758)	(257,593)
Senior note offering, net	247,408
Distributions to unitholders and general partner	(178,152)	(159,232)
Contributions from (distributions to) affiliates		(57,300)
Proceeds from (payments for) termination of interest rate swaps	(5,678)	9,112
Net intercompany borrowings (repayments)	(283,646)	(131,914)
Other, net	(1,720)	(2,268)
Net cash provided by (used in) financing activities	130,132	18,169
Effect of foreign exchange rate changes on cash	(1,496)	6,849
Net increase (decrease) in cash and cash equivalents	(4)	(67,546)
Cash and cash equivalents as of the beginning of the period	14	107,655
Cash and cash equivalents as of the end of the period	10	40,109
NuPOP
Cash flows from operating activities:
Net cash provided by (used in) operating activities	45,687	18,441
Cash flows from investing activities:
Capital expenditures	(7,745)	(1,802)
Acquisitions	0	0
Investment in other long-term assets	0	0
Proceeds from sale or disposition of assets	19	44
Investment in subsidiaries		(56,727)
Net cash used in investing activities	(7,726)	(58,485)
Cash flows from financing activities:
Debt borrowings	0	0
Debt repayments	(250,000)	0
Senior note offering, net	0
Distributions to unitholders and general partner	0	0
Contributions from (distributions to) affiliates		56,727
Proceeds from (payments for) termination of interest rate swaps	0	0
Net intercompany borrowings (repayments)	212,039	(16,683)
Other, net	0	0
Net cash provided by (used in) financing activities	(37,961)	40,044
Effect of foreign exchange rate changes on cash	0	0
Net increase (decrease) in cash and cash equivalents	0	0
Cash and cash equivalents as of the beginning of the period	0	0
Cash and cash equivalents as of the end of the period	0	0
Non-Guarantor Subsidiaries (a)
Cash flows from operating activities:
Net cash provided by (used in) operating activities	(30,157)	(70,129)
Cash flows from investing activities:
Capital expenditures	(49,504)	(55,285)
Acquisitions	0	(100,448)
Investment in other long-term assets	(2,286)	(5,580)
Proceeds from sale or disposition of assets	30,844	205
Investment in subsidiaries		(56,727)
Net cash used in investing activities	(20,946)	(217,835)
Cash flows from financing activities:
Debt borrowings	0	0
Debt repayments	0	0
Senior note offering, net	0
Distributions to unitholders and general partner	(7,417)	(16)
Contributions from (distributions to) affiliates		161,896
Proceeds from (payments for) termination of interest rate swaps	0	0
Net intercompany borrowings (repayments)	70,019	147,553
Other, net	1,737	(543)
Net cash provided by (used in) financing activities	64,339	308,890
Effect of foreign exchange rate changes on cash	3,357	(5,625)
Net increase (decrease) in cash and cash equivalents	16,593	15,301
Cash and cash equivalents as of the beginning of the period	17,344	73,413
Cash and cash equivalents as of the end of the period	33,937	88,714
Eliminations
Cash flows from operating activities:
Net cash provided by (used in) operating activities	(185,561)	(159,248)
Cash flows from investing activities:
Capital expenditures	0	0
Acquisitions	0	0
Investment in other long-term assets	0	0
Proceeds from sale or disposition of assets	0	0
Investment in subsidiaries		218,623
Net cash used in investing activities	0	218,623
Cash flows from financing activities:
Debt borrowings	0	0
Debt repayments	0	0
Senior note offering, net	0
Distributions to unitholders and general partner	185,569	159,248
Contributions from (distributions to) affiliates		(218,623)
Proceeds from (payments for) termination of interest rate swaps	0	0
Net intercompany borrowings (repayments)	(8)	0
Other, net	0	0
Net cash provided by (used in) financing activities	185,561	(59,375)
Effect of foreign exchange rate changes on cash	0	0
Net increase (decrease) in cash and cash equivalents	0	0
Cash and cash equivalents as of the beginning of the period	0	0
Cash and cash equivalents as of the end of the period	$ 0	$ 0