NuStar Energy (NS) 8-K NuStar Energy L.P. Reports Record Fourth Quarter 2010

Exhibit 99.1

NuStar Energy L.P. Reports Record Fourth Quarter 2010

Distributable Cash Flow and EBITDA

2010 Full Year Results Top Consensus Estimates

Internal Growth Projects Expected to Lead to Improved Results in 2011

SAN ANTONIO, January 31, 2011 – NuStar Energy L.P. (NYSE: NS) today announced its highest ever fourth quarter distributable cash flow available to limited partners of $66.7 million, or $1.03 per unit, compared to 2009 fourth quarter distributable cash flow of $57.0 million, or $0.99 per unit. For the year ended December 31, 2010, distributable cash flow available to limited partners was $280.7 million, or $4.43 per unit, compared to $311.4 million, or $5.66 per unit in 2009.

Fourth quarter earnings before interest, taxes, depreciation and amortization (EBITDA) were $113.6 million, also the highest ever for the fourth quarter, and exceeded fourth quarter 2009 EBITDA of $91.9 million. For the year ended December 31, 2010, EBITDA was $482.8 million compared to $460.5 million in 2009.

NuStar Energy L.P. reported fourth quarter net income applicable to limited partners of $41.9 million, or $0.65 per unit, compared to $28.8 million, or $0.50 per unit, earned in the fourth quarter of 2009. For the year ended December 31, 2010, net income applicable to limited partners was $200.9 million, or $3.19 per unit, compared to $191.7 million, or $3.47 per unit in 2009.

The partnership also announced that its board of directors has declared a fourth quarter 2010 distribution of $1.075 per unit. The fourth quarter 2010 distribution will be paid on February 14, 2011, to holders of record as of February 8, 2011. For 2010, NuStar Energy L.P. declared a distribution of $4.28 per unit, which was $0.035 per unit or approximately 1% higher than the $4.245 per unit distribution declared in 2009. Distributable cash flow available to limited partners covers the distribution to the limited partners by 0.96 times for the fourth quarter of 2010 and 1.04 times for the year ended December 31, 2010.

“Our record fourth quarter 2010 distributable cash flow and EBITDA were primarily the result of strong performances in our storage segment and asphalt and fuels marketing segments,” said Curt Anastasio, Chief Executive Officer and President of NuStar Energy L.P. and NuStar GP Holdings, LLC. “Increased storage rates at some of our terminal facilities in the storage segment and strong results in our asphalt, heavy fuels and bunker fuels operations within the asphalt and fuels marketing segment contributed to our record fourth quarter.”

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“In addition, all three of our business segments generated higher operating income and EBITDA for the year ended December 31, 2010 when compared to 2009,” said Anastasio. “Increased throughputs, excluding the effect of the second quarter 2009 sale of the Ardmore-Wynnewood pipeline in Oklahoma and the Trans-Texas pipeline, and higher-year-over year pipeline tariffs contributed to improved transportation segment results. Storage segment results benefited from the completion of some internal growth projects, increased storage rates at some of our terminal facilities and the May 2010 Mobile County, Alabama storage terminal acquisition.”

Anastasio added, “Increasing our marketing presence in our heavy fuels and bunker fuels operations contributed to improved 2010 results in the asphalt and fuels marketing segment. Revenue enhancement initiatives implemented by asphalt refining and marketing operations personnel also contributed to the segment’s improved performance.”

First Quarter 2011 Outlook

“For the first quarter of 2011, we are projecting total EBITDA to be in the range of $80 to $100 million. Our storage segment EBITDA is expected to be $5 to $10 million higher than last year’s first quarter due primarily to the incremental EBITDA generated by the May 2010 Mobile County, Alabama storage terminal acquisition and the internal growth project completed at our St. Eustatius terminal facility in 2010. EBITDA in our transportation and asphalt and fuels marketing segments should be comparable to the first quarter of 2010,” said Anastasio.

Full-Year 2011 Outlook

Commenting on the full-year outlook for the fee-based storage and transportation business segments, Anastasio said, “We expect incremental EBITDA in our storage segment to be $30 to $40 million higher than 2010. EBITDA from internal growth projects completed at our St. James, LA and St. Eustatius terminal facilities in 2010 and 2011 should be the major contributors to the increases in storage segment EBITDA. We expect EBITDA in our transportation segment to be $5 to $10 million lower due to reduced throughputs caused by the refinery turnaround activity of our customers and changing market conditions.”

In regard to the margin-based asphalt and fuels marketing segment, Anastasio added, “We expect slightly improving asphalt margins in 2011 as well as improved earnings in our fuels marketing operations to cause EBITDA in this segment to be higher than the $111 million of EBITDA earned in 2010.”

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A conference call with management is scheduled for 3:00 p.m. ET (2:00 p.m. CT) today, January 31, 2011, to discuss the financial and operational results for the fourth quarter of 2010. Investors interested in listening to the presentation may call 800/622-7620, passcode 33425793. International callers may access the presentation by dialing 706/645-0327, passcode 33425793. The company intends to have a playback available following the presentation, which may be accessed by calling 800/642-1687, passcode 33425793. A live broadcast of the conference call will also be available on the company’s Web site atwww.nustarenergy.com.

NuStar Energy L.P. is a publicly traded, limited partnership based in San Antonio, with 8,417 miles of pipeline; 88 terminal and storage facilities that store and distribute crude oil, refined products and specialty liquids; and two asphalt refineries with a combined throughput capacity of 104,000 barrels per day. The partnership’s combined system has over 93 million barrels of storage capacity. One of the largest asphalt refiners and marketers in the U.S. and the second largest independent liquids terminal operator in the nation, NuStar has operations in the United States, Canada, Mexico, the Netherlands and the United Kingdom. For more information, visit NuStar Energy L.P.’s Web site atwww.nustarenergy.com.

This release serves as qualified notice to nominees under Treasury Regulation Sections 1.1446-4(b)(4) and (d). Please note that 100% of NuStar’s distributions to foreign investors are attributable to income that is effectively connected with a United States trade or business. Accordingly, all of NuStar’s distributions to foreign investors are subject to federal income tax withholding at the highest effective tax rate for individuals and corporations, as applicable. Nominees, and not NuStar, are treated as the withholding agents responsible for withholding on the distributions received by them on behalf of foreign investors.

Cautionary Statement Regarding Forward-Looking Statements

This press release includes forward-looking statements regarding future events. All forward-looking statements are based on the partnership and company’s beliefs as well as assumptions made by and information currently available to the partnership and company. These statements reflect the partnership and company’s current views with respect to future events and are subject to various risks, uncertainties and assumptions. These risks, uncertainties and assumptions are discussed in NuStar Energy L.P. and NuStar GP Holdings, LLC’s 2009 annual reports on Form 10-K and subsequent filings with the Securities and Exchange Commission.

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NuStar Energy L.P. and Subsidiaries

Consolidated Financial Information

(Unaudited, Thousands of Dollars, Except Unit Data and Per Unit Data)

	Three Months Ended December 31,						Year Ended December 31,
	2010			2009			2010			2009
Statement of Income Data:
Revenues:
Services revenues	$	205,542		$	196,216		$	791,314		$	745,349
Product sales		988,670			786,562			3,611,747			3,110,522
Total revenues		1,194,212			982,778			4,403,061			3,855,871
Costs and expenses:
Cost of product sales		927,678			744,663			3,350,429			2,883,187
Operating expenses		123,004			126,875			486,032			458,892
General and administrative expenses		33,917			27,204			110,241			94,733
Depreciation and amortization expense		39,149			37,420			153,802			145,743
Total costs and expenses		1,123,748			936,162			4,100,504			3,582,555
Operating income		70,464			46,616			302,557			273,316
Equity in earnings of joint venture		2,929			1,917			10,500			9,615
Interest expense, net		(20,221	)		(18,858	)		(78,280	)		(79,384	)
Other income, net		1,052			5,976			15,934			31,859
Income before income tax expense (benefit)		54,224			35,651			250,711			235,406
Income tax expense (benefit)		2,689			(1,694	)		11,741			10,531
Net income	$	51,535		$	37,345		$	238,970		$	224,875
Net income applicable to limited partners	$	41,936		$	28,800		$	200,886		$	191,665
Net income per unit applicable to limited partners:	$	0.65		$	0.50		$	3.19		$	3.47
Weighted average limited partner units outstanding		64,610,549			57,523,049			62,946,987			55,232,467
EBITDA (Note 1)	$	113,594		$	91,929		$	482,793		$	460,533
Distributable cash flow (Note 1)	$	76,854		$	66,218		$	320,226		$	345,510
	December 31, 2010			December 31, 2009
Balance Sheet Data:
Debt, including current portion (a)	$	2,137,080		$	1,849,763
Partners’ equity (b)		2,702,700			2,484,968
Debt-to-capitalization ratio (a) / ((a)+(b))		44.2	%		42.7	%

NuStar Energy L.P. and Subsidiaries

Consolidated Financial Information - Continued

(Unaudited, Thousands of Dollars, Except Barrel Data)

	Three Months Ended December 31,						Year Ended December 31,
	2010			2009			2010			2009
Segment Data:
Storage:
Throughput (barrels/day)		677,736			667,655			669,435			667,169
Throughput revenues	$	19,520		$	18,705		$	75,605		$	78,353
Storage lease revenues		113,740			108,519			444,233			409,219
Total revenues		133,260			127,224			519,838			487,572
Operating expenses		65,634			68,645			263,820			245,439
Depreciation and amortization expense		20,067			18,416			77,071			70,888
Segment operating income	$	47,559		$	40,163		$	178,947		$	171,245
Transportation:
Refined products pipelines throughput (barrels/day)		531,626			566,694			529,946			573,778
Crude oil pipelines throughput (barrels/day)		342,417			357,392			371,726			351,888
Total throughput (barrels/day)		874,043			924,086			901,672			925,666
Revenues	$	83,255		$	80,919		$	316,072		$	302,070
Operating expenses		28,100			28,817			116,884			111,673
Depreciation and amortization expense		12,588			12,627			50,617			50,528
Segment operating income	$	42,567		$	39,475		$	148,571		$	139,869
Asphalt and fuels marketing:
Product sales	$	989,896		$	786,562		$	3,615,890		$	3,110,522
Cost of product sales		933,151			749,007			3,371,854			2,899,457
Gross margin		56,745			37,555			244,036			211,065
Operating expenses		35,994			37,297			132,918			130,973
Depreciation and amortization expense		5,003			4,927			20,257			19,463
Segment operating income	$	15,748		$	(4,669	)	$	90,861		$	60,629
Consolidation and intersegment eliminations:
Revenues	$	(12,199	)	$	(11,927	)	$	(48,739	)	$	(44,293	)
Cost of product sales		(5,473	)		(4,344	)		(21,425	)		(16,270	)
Operating expenses		(6,724	)		(7,884	)		(27,590	)		(29,193	)
Total	$	(2	)	$	301		$	276		$	1,170
Consolidated Information:
Revenues	$	1,194,212		$	982,778		$	4,403,061		$	3,855,871
Cost of product sales		927,678			744,663			3,350,429			2,883,187
Operating expenses		123,004			126,875			486,032			458,892
Depreciation and amortization expense		37,658			35,970			147,945			140,879
Segment operating income		105,872			75,270			418,655			372,913
General and administrative expenses		33,917			27,204			110,241			94,733
Other depreciation and amortization expense		1,491			1,450			5,857			4,864
Consolidated operating income	$	70,464		$	46,616		$	302,557		$	273,316

NuStar Energy L.P. and Subsidiaries

Consolidated Financial Information - Continued

(Unaudited, Thousands of Dollars, Except Per Unit Data)

Notes:

1. NuStar Energy L.P. utilizes two financial measures, EBITDA and distributable cash flow, which are not defined in United States generally accepted accounting principles. Management uses these financial measures because they are widely accepted financial indicators used by investors to compare partnership performance. In addition, management believes that these measures provide investors an enhanced perspective of the operating performance of the partnership’s assets and the cash that the business is generating. Neither EBITDA nor distributable cash flow are intended to represent cash flows for the period, nor are they presented as an alternative to net income. They should not be considered in isolation or as substitutes for a measure of performance prepared in accordance with United States generally accepted accounting principles.

The following is a reconciliation of net income to EBITDA and distributable cash flow:

	Three Months Ended December 31,						Year Ended December 31,
	2010			2009			2010			2009
Net income	$	51,535		$	37,345		$	238,970		$	224,875
Plus interest expense, net		20,221			18,858			78,280			79,384
Plus income tax expense (benefit)		2,689			(1,694	)		11,741			10,531
Plus depreciation and amortization expense		39,149			37,420			153,802			145,743
EBITDA		113,594			91,929			482,793			460,533
Less equity earnings from joint ventures		(2,929	)		(1,917	)		(10,500	)		(9,615	)
Less interest expense, net		(20,221	)		(18,858	)		(78,280	)		(79,384	)
Less reliability capital expenditures		(15,704	)		(12,248	)		(54,031	)		(45,163	)
Less income tax (expense) benefit		(2,689	)		1,694			(11,741	)		(10,531	)
Plus distributions from joint venture		2,125			2,950			9,625			9,700
Mark-to-market impact on hedge transactions (a)		2,678			2,668			(17,640	)		19,970
Distributable cash flow		76,854			66,218			320,226			345,510
General partner’s interest in distributable cash flow		(10,160	)		(9,266	)		(39,531	)		(34,142	)
Limited partners’ interest in distributable cash flow	$	66,694		$	56,952		$	280,695		$	311,368
Distributable cash flow per limited partner unit	$	1.03		$	0.99		$	4.43		$	5.66

(a) Distributable cash flow excludes the impact of unrealized mark-to-market gains and losses which arise from valuing certain derivative contracts that hedge a portion of our inventory but do not qualify for hedge accounting treatment. The gain or loss associated with these contracts is realized in distributable cash flow when the contracts are settled.