Andeavor Logistics (ANDX) 10-Q 2 May 14 2014 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
	Mar. 31, 2014	Apr. 28, 2014	Apr. 28, 2014	Apr. 28, 2014
		Common	Subordinated	General Partner
Entity Registrant Name	'TESORO LOGISTICS LP	'	'	'
Entity Central Index Key	'0001507615	'	'	'
Document Type	'10-Q	'	'	'
Document Period End Date	31-Mar-14	'	'	'
Amendment Flag	'false	'	'	'
Document Fiscal Year Focus	'2014	'	'	'
Document Fiscal Period Focus	'Q1	'	'	'
Current Fiscal Year End Date	'--12-31	'	'	'
Entity Well-known Seasoned Issuer	'Yes	'	'	'
Entity Voluntary Filers	'No	'	'	'
Entity Current Reporting Status	'Yes	'	'	'
Entity Filer Category	'Large Accelerated Filer	'	'	'
Entity Common Stock, Units Outstanding	'	39,199,766	15,254,890	1,110,282

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Operations (Unaudited) (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013
REVENUES	'		'
Affiliate	$109,580		$47,892
Third-party	15,469		3,730
Total Revenues	125,049		51,622
COSTS AND EXPENSES	'		'
Operating and maintenance expenses	45,098		19,489
Imbalance settlement gains	-2,417		-2,424
General and administrative expenses	9,346		6,053
Depreciation and amortization expenses	15,525		4,081
Loss (gain) on asset disposals and impairments	-4,748		164
Total Costs and Expenses	62,804		27,363
OPERATING INCOME	62,245		24,259
Interest and financing costs, net	-17,747		-5,604
Interest income	0		23
NET INCOME	44,498		18,678
General partnerbs interest in net income, including incentive distribution rights	-6,836		-1,536
Limited partnersb interest in net income	$37,662		$17,142
Net income per limited partner unit:	'		'
Common - basic and diluted (dollars per unit)	$0.64	[1]	$0.40	[1]
Subordinated - basic and diluted (dollars per unit)	$0.64	[1]	$0.37	[1]
Weighted average limited partner units outstanding:	'		'
Common units - basic (units)	39,186,006		28,861,234
Common units - diluted (units)	39,284,388		28,929,128
Subordinated units - basic and diluted (units)	15,254,890		15,254,890
Cash distributions per unit (dollars per unit)	$0.56		$0.47
[1]	We base our calculation of net income per unit on the weighted-average number of common and subordinated limited partner units outstanding during the period. Therefore, as a result of the public offering of common units in January 2013, net income per common and subordinated limited partner units will not agree for the three months ended March 31, 2013.

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (Unaudited) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
CURRENT ASSETS	'	'
Cash and cash equivalents	$42,603	$23,203
Receivables, net	'	'
Trade	7,802	9,125
Affiliate	49,654	42,369
Other	17,235	14,000
Current assets held for sale	0	4,903
Prepayments and other	1,622	2,110
Total Current Assets	118,916	95,710
NET PROPERTY, PLANT AND EQUIPMENT	1,379,278	1,368,301
GOODWILL	8,852	8,738
OTHER NONCURRENT ASSETS	29,140	29,563
Total Assets	1,536,186	1,502,312
Accounts payable	'	'
Trade	23,761	21,412
Affiliate	14,982	13,851
Deferred revenue - affiliate	1,855	2,346
Accrued interest and financing costs	40,146	22,895
Accrued environmental liabilities	23,094	19,741
Other current liabilities	8,036	6,863
Total Current Liabilities	111,874	87,108
OTHER NONCURRENT LIABILITIES	6,023	5,832
DEBT	1,163,778	1,164,020
COMMITMENTS AND CONTINGENCIES (Note H)	'	'
EQUITY	'	'
Common unitholders; 39,199,766 units issued and outstanding (39,148,916 in 2013)	464,889	459,261
Subordinated unitholders; 15,254,890 units issued and outstanding (15,254,890 in 2013)	-159,390	-161,311
General partner; 1,110,282 units issued and outstanding (1,110,282 in 2013)	-50,988	-52,598
Total Equity	254,511	245,352
Total Liabilities and Equity	$1,536,186	$1,502,312

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Unaudited), (Parenthetical)	Mar. 31, 2014	Dec. 31, 2013
EQUITY	'	'
Common units issued (units)	39,199,766	39,148,916
Subordinated units issued (units)	15,254,890	15,254,890
General partner units issued (units)	1,110,282	1,110,282
Common units outstanding (units)	39,199,766	39,148,916
Subordinated units outstanding (units)	15,254,890	15,254,890
General partner units outstanding (units)	1,110,282	1,110,282

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:	'	'
Net income	$44,498	$18,678
Adjustments to reconcile net income to net cash from (used in) operating activities:	'	'
Depreciation and amortization expenses	15,525	4,081
Amortization of debt issuance costs	787	416
Unit-based compensation expense	347	442
Loss (gain) on asset disposals and impairments	-4,748	164
Changes in current assets and liabilities	14,041	5,923
Changes in non-current assets and liabilities	221	0
Net cash from operating activities	70,671	29,704
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:	'	'
Capital expenditures	-25,179	-8,860
Capital expenditure reimbursements	11	128
Proceeds from sale of assets	9,721	0
Net cash used in investing activities	-15,447	-8,732
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:	'	'
Proceeds from issuance of common units, net of issuance costs	0	391,619
Proceeds from issuance of general partner units	0	8,319
Quarterly distributions to unitholders	-31,067	-21,524
Quarterly distributions to general partner	-5,485	-1,400
Payments on capital lease	-65	-101
Financing costs	-608	-2,977
Capital contributions by affiliate	1,401	1,252
Net cash from (used in) financing activities	-35,824	375,188
INCREASE IN CASH AND CASH EQUIVALENTS	19,400	396,160
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	23,203	19,290
CASH AND CASH EQUIVALENTS, END OF PERIOD	42,603	415,450
SUPPLEMENTAL CASH FLOW DISCLOSURE OF NON-CASH ACTIVITIES:	'	'
Capital expenditures included in accounts payable at period end	12,774	6,401
Capital lease obligation	$0	$3,840

Organization_and_Basis_of_Pres

Organization and Basis of Presentation (Notes)	3 Months Ended
	Mar. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Organization and Basis of Presentation	'
	BASIS OF PRESENTATION
	As used in this report, the terms “Tesoro Logistics LP,” “TLLP,” the “Partnership,” “we,” “us,” or “our” refer to Tesoro Logistics LP, one or more of its consolidated subsidiaries or all of them taken as a whole. References in this report to “Tesoro” or our “Sponsor” refer collectively to Tesoro Corporation and any of its subsidiaries, other than Tesoro Logistics LP, its subsidiaries and its general partner.
	The interim condensed consolidated financial statements and notes thereto have been prepared by management without audit according to the rules and regulations of the Securities and Exchange Commission (“SEC”) and reflect all adjustments that, in the opinion of management, are necessary for a fair presentation of results for the periods presented. Such adjustments are of a normal recurring nature, unless otherwise disclosed. All intercompany accounts and transactions have been eliminated.
	Certain information and notes normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) have been condensed or omitted pursuant to the SEC’s rules and regulations. However, management believes that the disclosures presented herein are adequate to present the information fairly. The accompanying interim condensed consolidated financial statements and notes should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2013.
	We prepare our condensed consolidated financial statements in conformity with U.S. GAAP, which requires management to make estimates and assumptions that affect the amounts of assets and liabilities and revenues and expenses reported as of and during the periods presented. We review our estimates on an ongoing basis using currently available information. Changes in facts and circumstances may result in revised estimates, and actual results could differ from those estimates. The results of operations of the Partnership for any interim period are not necessarily indicative of results for the full year.
	We believe the carrying value of our cash and cash equivalents, receivables, accounts payable and certain accrued liabilities approximates fair value. Our fair value assessment incorporates a variety of considerations, including:
	•	the short term duration of the instruments (less than one percent of both our trade payables and our third party receivables have been outstanding for greater than 90 days); and
	•	the expected future insignificance of bad debt expense, which includes an evaluation of counterparty credit risk.
	The fair value of our senior notes is based on prices from recent trade activity and is categorized in level 2 of the fair value hierarchy. The carrying value and fair value of our total debt were both approximately $1.2 billion at both March 31, 2014 and December 31, 2013.

Acquisitions_Notes

Acquisitions (Notes)	3 Months Ended
	Mar. 31, 2014
Business Combinations [Abstract]	'
Acquisitions	'
	ACQUISITIONS
	In 2013, we entered into two transactions with Tesoro and Tesoro Logistics GP, LLC (“TLGP”), our general partner, pursuant to which TLLP acquired from Tesoro the following:
	•	two marine terminals, a marine storage facility, a product terminal, a petroleum coke handling and storage facility and crude oil and refined products pipelines located in Southern California (the “Los Angeles Logistics Assets”) effective December 6, 2013; and
	•	six marketing terminals and storage facilities located in Southern California (the “Los Angeles Terminal Assets”) effective June 1, 2013.
	These transactions are collectively referred to as “Acquisitions from Tesoro” and were transfers between entities under common control. See our Annual Report on Form 10-K for the year ended December 31, 2013 for additional information regarding the Acquisitions from Tesoro and the commercial agreements executed in connection with these acquisitions.
	We have not provided disclosure of pro forma revenues and earnings as if the Acquisitions from Tesoro had occurred prior to 2013 for the three months ended March 31, 2013. BP managed and operated the Los Angeles Terminal Assets and the Los Angeles Logistics Assets as part of its refining operations, and historical U.S. GAAP financial information specific to the these assets is not available. As a result, preparing pro forma information was determined to be impracticable.
	Northwest Products System Acquisition
	On June 19, 2013, we purchased a regulated common carrier products pipeline running from Salt Lake City, Utah to Spokane, Washington, a jet fuel pipeline to the Salt Lake City International Airport (“Northwest Products Pipeline”) and three refined product terminals in Boise and Pocatello, Idaho and Pasco, Washington (collectively, the “Northwest Products System”) from Chevron Pipe Line Company and Northwest Terminalling Company (collectively, “Chevron”). The total purchase price was $354.8 million. The purchase price allocation for the Northwest Products System acquisition is preliminary and is based on estimated fair values of the assets acquired and liabilities assumed at the acquisition date. Finalization of the purchase price allocation is pending additional review of environmental liabilities assumed through the end of the measurement period, which is not to exceed one year from the acquisition date. There were no material adjustments recorded during the three months ended March 31, 2014.
	Pursuant to the regulatory review process associated with the Northwest Products System acquisition, we agreed to divest our legacy refined products terminal in Boise, Idaho (“Boise Terminal”). We completed the sale of the Boise Terminal on March 18, 2014. Net proceeds from the sale of the assets were $9.7 million, which resulted in a gain of $4.7 million recorded during the three months ended March 31, 2014.
	If the Northwest Products System acquisition had occurred prior to 2013, our pro forma revenues and net income would have been $63.3 million and $21.5 million, respectively, for the three months ended March 31, 2013.

RelatedParty_Transactions_Note

Related-Party Transactions (Notes)	3 Months Ended
	Mar. 31, 2014
Related Party Transactions [Abstract]	'
Related-Party Transactions	'
	RELATED-PARTY TRANSACTIONS
	Affiliate Agreements
	The Partnership has various long-term, fee-based commercial agreements with Tesoro under which we provide pipeline transportation, trucking, terminal distribution, storage and petroleum-coke handling services and Tesoro commits to provide us with minimum monthly throughput volumes of crude oil and refined products. We believe the terms and conditions under these agreements are generally no less favorable to either party than those that could have been negotiated with unaffiliated parties with respect to similar services.
	Summary of Affiliate Transactions
	A summary of revenue and expense transactions with Tesoro is as follows (in thousands):
		Three Months Ended March 31,
		2014		2013
	Revenues	$	109,580	$	47,892
	Operating and maintenance expenses (a)	10,271		3,397
	General and administrative expenses	7,480		2,826
	____________
	(a)	Operating and maintenance expenses include imbalance settlement gains of $2.4 million for both the three months ended March 31, 2014 and 2013.
	In accordance with our partnership agreement, our common, subordinated and general partner interests are entitled to receive quarterly distributions of available cash. In February 2014, we paid a quarterly cash distribution, of which $16.3 million was paid to Tesoro and TLGP, including incentive distribution rights (“IDRs”). On April 23, 2014, we announced the declaration of a quarterly cash distribution of $0.59 per unit which will be paid on May 15, 2014. The distribution will consist of $18.1 million to Tesoro and TLGP, including IDRs.

Net_Income_Per_Unit_Notes

Net Income Per Unit (Notes)	3 Months Ended
	Mar. 31, 2014
Net Income (Loss), Per Outstanding Limited Partnership and General Partnership Unit, Basic and Diluted, Net of Tax [Abstract]	'
Net Income Per Unit	'
	NET INCOME PER UNIT
	We use the two-class method when calculating the net income per unit applicable to limited partners, because we have more than one participating security. Our participating securities consist of common units, subordinated units, general partner units and IDRs. Net income earned by the Partnership is allocated between the limited (both common and subordinated) and general partners in accordance with our partnership agreement. We base our calculation of net income per unit on the weighted average number of common and subordinated limited partner units outstanding during the period. Diluted net income per unit includes the effects of potentially dilutive units on our common units, which consist of unvested service and performance phantom units. Basic and diluted net income per unit applicable to subordinated limited partners are the same, as there are no potentially dilutive subordinated units outstanding. Distributions less than or greater than earnings are allocated in accordance with our partnership agreement. The calculation of net income per unit is as follows (in thousands, except unit and per unit amounts):
		Three Months Ended March 31,
		2014			2013
	Net income attributable to partners	$	44,498		$	18,678
	General partner’s distributions (including IDRs) (a)	(6,847		)	(1,666		)
	Limited partners’ distributions on common units	(23,129		)	(14,835		)
	Limited partner’s distributions on subordinated units	(9,000		)	(7,475		)
	Distributions less (greater) than earnings	$	5,522		$	(5,298	)
	General partner’s earnings:
	Distributions (including IDRs) (a)	$	6,847		$	1,666
	Allocation of distributions less (greater) than earnings	2,761			(107		)
	Total general partner’s earnings	$	9,608		$	1,559
	Limited partners’ earnings on common units:
	Distributions	$	23,129		$	14,835
	Allocation of distributions less (greater) than earnings	1,987			(3,396		)
	Total limited partners’ earnings on common units	$	25,116		$	11,439
	Limited partner’s earnings on subordinated units:
	Distributions	$	9,000		$	7,475
	Allocation of distributions less (greater) than earnings	774			(1,795		)
	Total limited partner’s earnings on subordinated units	$	9,774		$	5,680
	Weighted average limited partner units outstanding:
	Common units - basic	39,186,006			28,861,234
	Common unit equivalents	98,382			67,894
	Common units - diluted	39,284,388			28,929,128
	Subordinated units - basic and diluted	15,254,890			15,254,890
	Net income per limited partner unit (b):
	Common - basic and diluted	$	0.64		$	0.4
	Subordinated - basic and diluted	$	0.64		$	0.37
	____________
	(a)	General partner’s distributions (including IDRs) consist of an approximate 2% general partner interest and IDRs, which entitle the general partner to receive increasing percentages, up to 50%, of quarterly distributions in excess of $0.388125 per unit per quarter. See Note K of our Annual Report on Form 10-K for the year ended December 31, 2013 for further discussion related to IDRs.
	(b)	We base our calculation of net income per unit on the weighted-average number of common and subordinated limited partner units outstanding during the period. Therefore, as a result of the public offering of common units in January 2013, net income per common and subordinated limited partner units will not agree for the three months ended March 31, 2013.

Property_Plant_and_Equipment_N

Property, Plant and Equipment (Notes)	3 Months Ended
	Mar. 31, 2014
Property, Plant and Equipment [Abstract]	'
Property, Plant and Equipment	'
	PROPERTY, PLANT AND EQUIPMENT
	Property, plant and equipment, at cost, is as follows (in thousands):
		March 31, 2014			December 31, 2013
	Crude Oil Gathering	$	189,769		$	172,114
	Terminalling and Transportation	1,337,745			1,330,150
	Other	2,469			1,237
	Property, Plant and Equipment	1,529,983			1,503,501
	Accumulated depreciation	(150,705		)	(135,200		)
	Net Property, Plant and Equipment	$	1,379,278		$	1,368,301

Major_Customer_and_Concentrati

Major Customer and Concentrations of Credit Risk (Notes)	3 Months Ended
	Mar. 31, 2014
Major Customer and Concentrations of Credit Risk [Abstract]	'
Major Customer and Concentrations of Credit Risk	'
	MAJOR CUSTOMER AND CONCENTRATIONS OF CREDIT RISK
	Tesoro accounted for 88% and 93% of our total revenues for the three months ended March 31, 2014 and 2013, respectively.

Debt_Notes

Debt (Notes)	3 Months Ended
	Mar. 31, 2014
Long-term Debt, Unclassified [Abstract]	'
Debt	'
	DEBT
	Our total debt at March 31, 2014 and December 31, 2013 was comprised of the following (in thousands):
	Debt, including current maturities:	March 31, 2014				December 31, 2013
	Revolving Credit Facility	$	—			$	—
	5.875% TLLP Senior Notes due 2020 (a)	605,426				605,598
	6.125% TLLP Senior Notes due 2021	550,000				550,000
	Capital lease obligations	8,680				8,745
	Total Debt	1,164,106				1,164,343
	Current maturities	(328		)		(323		)
	Debt, less current maturities	$	1,163,778			$	1,164,020
	____________
	(a)	Includes an unamortized premium of $5.4 million and $5.6 million as of March 31, 2014 and December 31, 2013, respectively.
	Revolving Credit Facility
	As of March 31, 2014, our revolving credit facility (the “Revolving Credit Facility”) provided for total loan availability of $575.0 million and allows us to request that the loan availability be increased up to an aggregate of $650.0 million, subject to receiving increased commitments from the lenders. Our Revolving Credit Facility is non-recourse to Tesoro, except for TLGP, and is guaranteed by all of our subsidiaries and secured by substantially all of our assets. We had no borrowings and $0.3 million in letters of credit outstanding under the Revolving Credit Facility, resulting in a total unused loan availability of $574.7 million as of March 31, 2014. The Revolving Credit Facility is scheduled to mature on December 31, 2017.
	As of March 31, 2014, our Revolving Credit Facility was subject to the following expenses and fees:
	Credit Facility		30 day Eurodollar (LIBOR) Rate		Eurodollar Margin		Base Rate		Base Rate Margin	Commitment Fee
										(unused portion)
	Revolving Credit Facility (b)		0.15%		2.50%		3.25%		1.50%	0.50%
	____________
	(b) We have the option to elect if the borrowings will bear interest at either a base rate plus the base rate margin, or a Eurodollar rate, for the applicable period, plus the Eurodollar margin at the time of the borrowing. The applicable margin varies based upon a certain leverage ratio, as defined by the Revolving Credit Facility. We also incur commitment fees for the unused portion of the Revolving Credit Facility at an annual rate. Letters of credit outstanding under the Revolving Credit Facility incur fees at the Eurodollar margin rate.
	Exchange Offer
	The Partnership entered into a registration rights agreement (“Registration Rights Agreement”) in connection with the December 2013 private offering of $250.0 million of Senior Notes due 2020 (the “Unregistered Notes”). On April 11, 2014, pursuant to the Registration Rights Agreement, the Partnership filed a registration statement related to an offer to exchange the Unregistered Notes for notes registered under the Securities Act of 1933, as amended (the “Exchange Notes”). The registration statement is not yet effective and the related exchange offering has not yet commenced.  Once the offer has commenced, each holder of the Unregistered Notes will be entitled to receive Exchange Notes which are identical in all material respects to the Unregistered Notes (including principal amount, interest rate, maturity and redemption rights), except that the Exchange Notes generally are not subject to transfer restrictions.
	Subsidiary Guarantors
	The parent company of the Partnership has no independent assets or operations. The Partnership’s operations are conducted by its wholly-owned guarantor subsidiaries, other than Tesoro Logistics Finance Corp., an indirect wholly-owned subsidiary of the Partnership whose sole purpose is to act as co-issuer of any debt securities. The guarantees are full and unconditional and joint and several, subject to certain automatic customary releases, including sale, disposition, or transfer of the capital stock or substantially all of the assets of a subsidiary guarantor, exercise of legal defeasance option or covenant defeasance option, and designation of a subsidiary guarantor as unrestricted in accordance with the applicable indenture. There are no significant restrictions on the ability of the Partnership or any guarantor to obtain funds from its subsidiaries by dividend or loan. None of the assets of the Partnership or a guarantor represent restricted net assets pursuant to Rule 4-08(e)(3) of Regulation S-X under the Securities Act.

Commitments_and_Contingencies_

Commitments and Contingencies (Notes)	3 Months Ended
	Mar. 31, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	COMMITMENTS AND CONTINGENCIES
	Indemnification
	Under an omnibus agreement between Tesoro and the Partnership (“Omnibus Agreement”), Tesoro indemnifies us for certain matters, including environmental, title and tax matters associated with the ownership of our assets at or before the closing of the initial public offering in April 2011 and subsequent acquisitions from Tesoro, excluding the Los Angeles Terminal Assets and the Los Angeles Logistics Assets. Under the Carson Assets Indemnity Agreement (the “Carson Assets Indemnity Agreement”), Tesoro retained responsibility for remediation of known environmental liabilities due to the use or operation of the Los Angeles Terminal Assets and the Los Angeles Logistics Assets prior to the acquisition dates, and has indemnified the Partnership for any losses incurred by the Partnership arising out of those remediation obligations. See Note J of our Annual Report on Form 10-K for the year ended December 31, 2013 for additional information regarding the terms and conditions of the Omnibus Agreement and the Carson Assets Indemnity Agreement.
	Environmental Liabilities
	We are subject to federal, state and local laws and regulations governing environmental quality and pollution control. These laws and regulations require us to remove or remedy the effect of the disposal or release of specified substances at current and former operating sites. We have accrued liabilities for these expenses and believe these accruals are adequate based on current information and projections that can be reasonably estimated. Our environmental accruals are based on estimates including engineering assessments, and it is possible that our projections will change and that additional costs will be recorded as more information becomes available. Our accruals for these environmental expenditures totaled $27.8 million and $24.4 million at March 31, 2014 and December 31, 2013, respectively. Changes in our environmental liabilities during the period were as follows (in thousands):
		Tioga Crude Oil Pipeline Release			Chevron Corrective Action Order			Other Liabilities			Total
	Balance at December 31, 2013	$	11,568		$	8,016		$	4,856		$	24,440
	Additions	5,636			—			195			5,831
	Expenditures	(851		)	(1,515		)	(111		)	(2,477		)
	Balance at March 31, 2014	$	16,353		$	6,501		$	4,940		$	27,794
	Tioga, North Dakota Crude Oil Pipeline Release
	In September 2013, the Partnership responded to the release of approximately 20,000 barrels of crude oil in a rural field northeast of Tioga, North Dakota (the “Crude Oil Pipeline Release”). The environmental liabilities related to the Crude Oil Pipeline Release include amounts estimated for remediation activities that will be conducted during the next few years to restore the site for agricultural use. We accrued an additional $5.6 million during the three months ended March 31, 2014 to reflect improved scope definition and estimates which resulted in an increase in the total estimated cost associated with the project. Probable insurance recoveries related to the Crude Oil Pipeline Release of $17.2 million and $14.0 million were included in other receivables at March 31, 2014 and December 31, 2013, respectively, pursuant to a pollution liability insurance policy, which is subject to a $1.0 million deductible and a $25.0 million loss limit. Through March 31, 2014, we have received insurance proceeds of $2.4 million in reimbursements of costs incurred.
	Costs to comply with a safety order related to the Crude Oil Pipeline Release issued by the Pipeline and Hazardous Materials Safety Administration of the U.S. Department of Transportation (“PHMSA”) are not expected to have a material adverse effect on our liquidity, financial position, or results of operations.
	Chevron Diesel Pipeline Release
	On March 18, 2013, Chevron detected and responded to the release of diesel fuel (the “Diesel Pipeline Release”) that occurred near Willard, Utah on the Northwest Products System. As a result of this release, a Corrective Action Order (the “CAO”) was issued on March 22, 2013 by PHMSA. In addition, on April 11, 2013, the Department of Environmental Quality, Division of Water Quality, of the state of Utah issued a notice of violation and compliance order. In accordance with the sale and purchase agreements, as amended, Chevron has retained financial and operational responsibility to remediate the site of the Diesel Pipeline Release through mid-2015, in addition to paying any monetary fines and penalties assessed by any government authority arising from this incident.
	The Partnership assumed responsibility for performing additional testing and associated pipeline repairs on the pipeline pursuant to the CAO upon closing the Northwest Products System acquisition. In connection with the Northwest Products System acquisition, our condensed consolidated balance sheet included $6.5 million and $8.0 million in accrued environmental liabilities related to the CAO at March 31, 2014 and December 31, 2013, respectively, and $4.7 million in accruals unrelated to the Diesel Pipeline Release included in other noncurrent liabilities at both March 31, 2014 and December 31, 2013.
	Contingencies
	In the ordinary course of business, we may become party to lawsuits, administrative proceedings and governmental investigations, including environmental, regulatory and other matters. The outcome of these matters cannot always be predicted accurately, but TLLP will accrue liabilities for these matters if the amount is probable and can be reasonably estimated. Other than described above, we did not have any material lawsuits, administrative proceedings or governmental investigations.

Equity_Notes

Equity (Notes)	3 Months Ended
	Mar. 31, 2014
Equity [Abstract]	'
Equity	'
	EQUITY
	We had 35,343,942 common public units outstanding as of March 31, 2014. Additionally, Tesoro owned 3,855,824 of our common units, 15,254,890 of our subordinated units and 1,110,282 of our general partner units (the 2% general partner interest) as of March 31, 2014, which together constitutes a 36.4% ownership interest in us.
	We issued 50,850 units, net of 22,595 units withheld for taxes, for awards vested under our unit-based compensation plan during the three months ended March 31, 2014.
	The changes in the carrying amount of our equity are summarized as follows (in thousands):
		Partnership
		Common			Subordinated			General Partner			Total
	Balance at December 31, 2013	$	459,261		$	(161,311	)	$	(52,598	)	$	245,352
	Quarterly distributions	(22,448		)	(8,619		)	(5,485		)	(36,552		)
	Net income attributable to partners	27,109			10,553			6,836			44,498
	Other	967			(13		)	259			1,213
	Balance at March 31, 2014	$	464,889		$	(159,390	)	$	(50,988	)	$	254,511
	Allocations of Net Income
	Our partnership agreement 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 will be allocated among the partners in accordance with their respective percentage interest. Normal allocations according to percentage interests are made after giving effect, if any, to priority income allocations in an amount equal to incentive cash distributions allocated 100% to the general partner.
	The following table presents the allocation of the general partner’s interest in net income (in thousands, except percentage of ownership interest):
		Three Months Ended March 31,
		2014			2013
	Net income attributable to partners	$	44,498		$	18,678
	General partner’s IDRs	(6,068		)	(1,186		)
	Net income available to partners excluding IDRs	$	38,430		$	17,492
	General partner’s ownership interest	2		%	2		%
	General partner’s allocated interest in net income	$	768		$	350
	General partner’s IDRs	6,068			1,186
	Total general partner’s interest in net income	$	6,836		$	1,536
	Cash distributions
	Our partnership agreement, as amended, sets forth the calculation to be used to determine the amount and priority of cash distributions that the common and subordinated unitholders and general partner will receive. In accordance with our partnership agreement, on April 23, 2014, we announced the declaration of a cash distribution of $0.59 per unit related to the three months ended March 31, 2014, which will be paid on May 15, 2014 to unitholders of record on May 5, 2014. The total cash distribution to be paid is $39.0 million and includes amounts to be paid for IDRs. On February 13, 2014, we paid a quarterly cash distribution of $0.5650 per limited partner unit, which totaled $36.3 million and included amounts paid for IDRs. We paid $0.3 million for distribution equivalent rights related to unit-based compensation awards vested during the three months ended March 31, 2014.
	The allocation of total quarterly cash distributions to general and limited partners is as follows for the three months ended March 31, 2014 and 2013 (in thousands). Our distributions are declared subsequent to quarter end; therefore, the following table represents total cash distributions applicable to the period in which the distributions are earned.
		Three Months Ended March 31,
		2014			2013
	General partner’s distributions:
	General partner’s distributions	$	779		$	480
	General partner’s IDRs	6,068			1,186
	Total general partner’s distributions	6,847			1,666
	Limited partners’ distributions:
	Common	23,129			14,835
	Subordinated	9,000			7,475
	Total limited partners’ distributions	32,129			22,310
	Total Cash Distributions	$	38,976		$	23,976

EquityBased_Compensation_Notes

Equity-Based Compensation (Notes)	3 Months Ended
	Mar. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Equity-Based Compensation	'
	EQUITY-BASED COMPENSATION
	Unit-based compensation expense related to the Partnership that was included in our condensed consolidated statements of operations was as follows (in thousands):
		Three Months Ended March 31,
		2014		2013
	Performance phantom units	$	293	$	401
	Service phantom units	54		41
	Total Unit-Based Compensation Expense	$	347	$	442
	Performance Phantom Unit Awards
	We granted 39,380 performance phantom unit awards at a grant date fair value of $67.97 in February 2014. The estimated fair value of these awards is amortized over a three-year vesting period using the straight-line method.
	Service Phantom Unit Awards
	We granted approximately 3,324 service phantom unit awards at a grant date fair value of $58.13 in February 2014. The estimated fair value of these awards is amortized over a one-year vesting period using the straight-line method.

Segment_Disclosures_Notes

Segment Disclosures (Notes)	3 Months Ended
	Mar. 31, 2014
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]	'
Segment Disclosures	'
	SEGMENT DISCLOSURES
	Our revenues are derived from two operating segments: Crude Oil Gathering and Terminalling and Transportation. Our Crude Oil Gathering segment consists of a crude oil gathering system in the Bakken Shale/Williston Basin area of North Dakota and Montana. Our Terminalling and Transportation segment consists of:
	•	the Northwest Products Pipeline, which includes a regulated common carrier products pipeline running from Salt Lake City, Utah to Spokane, Washington and a jet fuel pipeline to the Salt Lake City International Airport;
	•	20 crude oil and refined products terminals and storage facilities in the western and midwestern U.S.;
	•	four marine terminals in California;
	•	a rail-car unloading facility in Washington;
	•	a petroleum coke handling and storage facility in Los Angeles; and
	•	other pipelines which transport products and crude oil from Tesoro’s refineries to nearby facilities in Salt Lake City and Los Angeles.
	Our revenues are generated from existing third-party contracts and from commercial agreements we have entered into with Tesoro under which Tesoro pays us fees for gathering crude oil and distributing, transporting and storing crude oil and refined products. We do not have any foreign operations.
	Our operating segments are strategic business units that offer different services in different geographical locations. We evaluate the performance of each segment based on its respective operating income. Certain general and administrative expenses and interest and financing costs are excluded from segment operating income as they are not directly attributable to a specific operating segment. Identifiable assets are those used by the segment, whereas other assets are principally cash, deposits and other assets that are not associated with a specific operating segment.
	Capital expenditures by operating segment were as follows (in thousands):
		Three Months Ended March 31,
		2014			2013
	Capital Expenditures
	Crude Oil Gathering	$	17,655		$	3,945
	Terminalling and Transportation	8,829			6,291
	Total Capital Expenditures	$	26,484		$	10,236
	Identifiable assets by operating segment were as follows (in thousands):
	Identifiable Assets	March 31, 2014			December 31, 2013
	Crude Oil Gathering	$	173,993		$	154,583
	Terminalling and Transportation	1,292,336			1,298,073
	Other	69,857			49,656
	Total Identifiable Assets	$	1,536,186		$	1,502,312
	Segment information is as follows (in thousands):
		Three Months Ended March 31,
		2014			2013
	REVENUES
	Crude Oil Gathering:
	Affiliate	$	23,251		$	21,377
	Third-party	1,373			314
	Total Crude Oil Gathering	24,624			21,691
	Terminalling and Transportation:
	Affiliate	86,329			26,515
	Third-party	14,096			3,416
	Total Terminalling and Transportation	100,425			29,931
	Total Segment Revenues	$	125,049		$	51,622
	OPERATING AND MAINTENANCE EXPENSES
	Crude Oil Gathering	$	12,072		$	12,360
	Terminalling and Transportation	33,026			7,129
	Total Segment Operating and Maintenance Expenses	$	45,098		$	19,489
	IMBALANCE SETTLEMENT GAINS
	Crude Oil Gathering	$	(1,137	)	$	(1,396	)
	Terminalling and Transportation	(1,280		)	(1,028		)
	Total Segment Imbalance Settlement Gains	$	(2,417	)	$	(2,424	)
	GENERAL AND ADMINISTRATIVE EXPENSES
	Crude Oil Gathering	$	1,652		$	694
	Terminalling and Transportation	4,515			1,042
	Total Segment General and Administrative Expenses	$	6,167		$	1,736
	DEPRECIATION AND AMORTIZATION EXPENSES
	Crude Oil Gathering	$	1,023		$	1,006
	Terminalling and Transportation	14,502			3,075
	Total Segment Depreciation and Amortization Expenses	$	15,525		$	4,081
	LOSS (GAIN) ON ASSET DISPOSALS AND IMPAIRMENTS
	Crude Oil Gathering	$	—		$	—
	Terminalling and Transportation	(4,748		)	164
	Total Segment Loss (Gain) on Asset Disposals and Impairments	$	(4,748	)	$	164
	OPERATING INCOME
	Crude Oil Gathering	$	11,014		$	9,027
	Terminalling and Transportation	54,410			19,549
	Total Segment Operating Income	65,424			28,576
	Unallocated general and administrative expenses	(3,179		)	(4,317		)
	Interest and financing costs, net	(17,747		)	(5,604		)
	Interest income	—			23
NET INCOME	$	44,498		$	18,678

Organization_and_Basis_of_Pres1

Organization and Basis of Presentation (Policies)	3 Months Ended
	Mar. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Basis of Accounting, Policy	'
	We prepare our condensed consolidated financial statements in conformity with U.S. GAAP, which requires management to make estimates and assumptions that affect the amounts of assets and liabilities and revenues and expenses reported as of and during the periods presented.

Net_Income_Per_Unit_Policies

Net Income Per Unit (Policies)	3 Months Ended
	Mar. 31, 2014
Net Income (Loss), Per Outstanding Limited Partnership and General Partnership Unit, Basic and Diluted, Net of Tax [Abstract]	'
Net Income Per Unit, Policy	'
	We use the two-class method when calculating the net income per unit applicable to limited partners, because we have more than one participating security. Our participating securities consist of common units, subordinated units, general partner units and IDRs. Net income earned by the Partnership is allocated between the limited (both common and subordinated) and general partners in accordance with our partnership agreement.

RelatedParty_Transactions_Tabl

Related-Party Transactions (Tables)	3 Months Ended
	Mar. 31, 2014
Related Party Transactions [Abstract]	'
Schedule of Related Party Transactions	'
	A summary of revenue and expense transactions with Tesoro is as follows (in thousands):
		Three Months Ended March 31,
		2014		2013
	Revenues	$	109,580	$	47,892
	Operating and maintenance expenses (a)	10,271		3,397
	General and administrative expenses	7,480		2,826
	____________
	(a)	Operating and maintenance expenses include imbalance settlement gains of $2.4 million for both the three months ended March 31, 2014 and 2013.

Net_Income_Per_Unit_Tables

Net Income Per Unit (Tables)	3 Months Ended
	Mar. 31, 2014
Net Income (Loss), Per Outstanding Limited Partnership and General Partnership Unit, Basic and Diluted, Net of Tax [Abstract]	'
Schedule of Earnings Per Share, Basic and Diluted	'
	The calculation of net income per unit is as follows (in thousands, except unit and per unit amounts):
		Three Months Ended March 31,
		2014			2013
	Net income attributable to partners	$	44,498		$	18,678
	General partner’s distributions (including IDRs) (a)	(6,847		)	(1,666		)
	Limited partners’ distributions on common units	(23,129		)	(14,835		)
	Limited partner’s distributions on subordinated units	(9,000		)	(7,475		)
	Distributions less (greater) than earnings	$	5,522		$	(5,298	)
	General partner’s earnings:
	Distributions (including IDRs) (a)	$	6,847		$	1,666
	Allocation of distributions less (greater) than earnings	2,761			(107		)
	Total general partner’s earnings	$	9,608		$	1,559
	Limited partners’ earnings on common units:
	Distributions	$	23,129		$	14,835
	Allocation of distributions less (greater) than earnings	1,987			(3,396		)
	Total limited partners’ earnings on common units	$	25,116		$	11,439
	Limited partner’s earnings on subordinated units:
	Distributions	$	9,000		$	7,475
	Allocation of distributions less (greater) than earnings	774			(1,795		)
	Total limited partner’s earnings on subordinated units	$	9,774		$	5,680
	Weighted average limited partner units outstanding:
	Common units - basic	39,186,006			28,861,234
	Common unit equivalents	98,382			67,894
	Common units - diluted	39,284,388			28,929,128
	Subordinated units - basic and diluted	15,254,890			15,254,890
	Net income per limited partner unit (b):
	Common - basic and diluted	$	0.64		$	0.4
	Subordinated - basic and diluted	$	0.64		$	0.37
	____________
	(a)	General partner’s distributions (including IDRs) consist of an approximate 2% general partner interest and IDRs, which entitle the general partner to receive increasing percentages, up to 50%, of quarterly distributions in excess of $0.388125 per unit per quarter. See Note K of our Annual Report on Form 10-K for the year ended December 31, 2013 for further discussion related to IDRs.
	(b)	We base our calculation of net income per unit on the weighted-average number of common and subordinated limited partner units outstanding during the period. Therefore, as a result of the public offering of common units in January 2013, net income per common and subordinated limited partner units will not agree for the three months ended March 31, 2013.

Property_Plant_and_Equipment_T

Property, Plant and Equipment (Tables)	3 Months Ended
	Mar. 31, 2014
Property, Plant and Equipment [Abstract]	'
Property, Plant and Equipment	'
	Property, plant and equipment, at cost, is as follows (in thousands):
		March 31, 2014			December 31, 2013
	Crude Oil Gathering	$	189,769		$	172,114
	Terminalling and Transportation	1,337,745			1,330,150
	Other	2,469			1,237
	Property, Plant and Equipment	1,529,983			1,503,501
	Accumulated depreciation	(150,705		)	(135,200		)
	Net Property, Plant and Equipment	$	1,379,278		$	1,368,301

Debt_Tables

Debt (Tables)	3 Months Ended
	Mar. 31, 2014
Long-term Debt, Unclassified [Abstract]	'
Schedule of Debt	'
	Our total debt at March 31, 2014 and December 31, 2013 was comprised of the following (in thousands):
	Debt, including current maturities:	March 31, 2014				December 31, 2013
	Revolving Credit Facility	$	—			$	—
	5.875% TLLP Senior Notes due 2020 (a)	605,426				605,598
	6.125% TLLP Senior Notes due 2021	550,000				550,000
	Capital lease obligations	8,680				8,745
	Total Debt	1,164,106				1,164,343
	Current maturities	(328		)		(323		)
	Debt, less current maturities	$	1,163,778			$	1,164,020
	____________
	(a)	Includes an unamortized premium of $5.4 million and $5.6 million as of March 31, 2014 and December 31, 2013, respectively.
Schedule of Line of Credit Facilities	'
	As of March 31, 2014, our Revolving Credit Facility was subject to the following expenses and fees:
	Credit Facility		30 day Eurodollar (LIBOR) Rate		Eurodollar Margin		Base Rate		Base Rate Margin	Commitment Fee
										(unused portion)
	Revolving Credit Facility (b)		0.15%		2.50%		3.25%		1.50%	0.50%
	____________
	(b) We have the option to elect if the borrowings will bear interest at either a base rate plus the base rate margin, or a Eurodollar rate, for the applicable period, plus the Eurodollar margin at the time of the borrowing. The applicable margin varies based upon a certain leverage ratio, as defined by the Revolving Credit Facility. We also incur commitment fees for the unused portion of the Revolving Credit Facility at an annual rate. Letters of credit outstanding under the Revolving Credit Facility incur fees at the Eurodollar margin rate.

Commitments_and_Contingencies_1

Commitments and Contingencies (Tables)	3 Months Ended
	Mar. 31, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Environmental Liabilities	'
	Changes in our environmental liabilities during the period were as follows (in thousands):
		Tioga Crude Oil Pipeline Release			Chevron Corrective Action Order			Other Liabilities			Total
	Balance at December 31, 2013	$	11,568		$	8,016		$	4,856		$	24,440
	Additions	5,636			—			195			5,831
	Expenditures	(851		)	(1,515		)	(111		)	(2,477		)
	Balance at March 31, 2014	$	16,353		$	6,501		$	4,940		$	27,794

Equity_Tables

Equity (Tables)	3 Months Ended
	Mar. 31, 2014
Equity [Abstract]	'
Schedule of Changes in Equity	'
	The changes in the carrying amount of our equity are summarized as follows (in thousands):
		Partnership
		Common			Subordinated			General Partner			Total
	Balance at December 31, 2013	$	459,261		$	(161,311	)	$	(52,598	)	$	245,352
	Quarterly distributions	(22,448		)	(8,619		)	(5,485		)	(36,552		)
	Net income attributable to partners	27,109			10,553			6,836			44,498
	Other	967			(13		)	259			1,213
	Balance at March 31, 2014	$	464,889		$	(159,390	)	$	(50,988	)	$	254,511
Schedule Of Calculation Of Net Income Applicable To Partners	'
	The following table presents the allocation of the general partner’s interest in net income (in thousands, except percentage of ownership interest):
		Three Months Ended March 31,
		2014			2013
	Net income attributable to partners	$	44,498		$	18,678
	General partner’s IDRs	(6,068		)	(1,186		)
	Net income available to partners excluding IDRs	$	38,430		$	17,492
	General partner’s ownership interest	2		%	2		%
	General partner’s allocated interest in net income	$	768		$	350
	General partner’s IDRs	6,068			1,186
	Total general partner’s interest in net income	$	6,836		$	1,536
Schedule Of Distributions Earned By General And Limited Partners	'
	The allocation of total quarterly cash distributions to general and limited partners is as follows for the three months ended March 31, 2014 and 2013 (in thousands). Our distributions are declared subsequent to quarter end; therefore, the following table represents total cash distributions applicable to the period in which the distributions are earned.
		Three Months Ended March 31,
		2014			2013
	General partner’s distributions:
	General partner’s distributions	$	779		$	480
	General partner’s IDRs	6,068			1,186
	Total general partner’s distributions	6,847			1,666
	Limited partners’ distributions:
	Common	23,129			14,835
	Subordinated	9,000			7,475
	Total limited partners’ distributions	32,129			22,310
	Total Cash Distributions	$	38,976		$	23,976

EquityBased_Compensation_Table

Equity-Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Unit-based Compensation Expense	'
	Unit-based compensation expense related to the Partnership that was included in our condensed consolidated statements of operations was as follows (in thousands):
		Three Months Ended March 31,
		2014		2013
	Performance phantom units	$	293	$	401
	Service phantom units	54		41
	Total Unit-Based Compensation Expense	$	347	$	442

Segment_Disclosures_Tables

Segment Disclosures (Tables)	3 Months Ended
	Mar. 31, 2014
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]	'
Schedule of Segment Reporting Information, by Segment	'
	Capital expenditures by operating segment were as follows (in thousands):
		Three Months Ended March 31,
		2014			2013
	Capital Expenditures
	Crude Oil Gathering	$	17,655		$	3,945
	Terminalling and Transportation	8,829			6,291
	Total Capital Expenditures	$	26,484		$	10,236
	Identifiable assets by operating segment were as follows (in thousands):
	Identifiable Assets	March 31, 2014			December 31, 2013
	Crude Oil Gathering	$	173,993		$	154,583
	Terminalling and Transportation	1,292,336			1,298,073
	Other	69,857			49,656
	Total Identifiable Assets	$	1,536,186		$	1,502,312
	Segment information is as follows (in thousands):
		Three Months Ended March 31,
		2014			2013
	REVENUES
	Crude Oil Gathering:
	Affiliate	$	23,251		$	21,377
	Third-party	1,373			314
	Total Crude Oil Gathering	24,624			21,691
	Terminalling and Transportation:
	Affiliate	86,329			26,515
	Third-party	14,096			3,416
	Total Terminalling and Transportation	100,425			29,931
	Total Segment Revenues	$	125,049		$	51,622
	OPERATING AND MAINTENANCE EXPENSES
	Crude Oil Gathering	$	12,072		$	12,360
	Terminalling and Transportation	33,026			7,129
	Total Segment Operating and Maintenance Expenses	$	45,098		$	19,489
	IMBALANCE SETTLEMENT GAINS
	Crude Oil Gathering	$	(1,137	)	$	(1,396	)
	Terminalling and Transportation	(1,280		)	(1,028		)
	Total Segment Imbalance Settlement Gains	$	(2,417	)	$	(2,424	)
	GENERAL AND ADMINISTRATIVE EXPENSES
	Crude Oil Gathering	$	1,652		$	694
	Terminalling and Transportation	4,515			1,042
	Total Segment General and Administrative Expenses	$	6,167		$	1,736
	DEPRECIATION AND AMORTIZATION EXPENSES
	Crude Oil Gathering	$	1,023		$	1,006
	Terminalling and Transportation	14,502			3,075
	Total Segment Depreciation and Amortization Expenses	$	15,525		$	4,081
	LOSS (GAIN) ON ASSET DISPOSALS AND IMPAIRMENTS
	Crude Oil Gathering	$	—		$	—
	Terminalling and Transportation	(4,748		)	164
	Total Segment Loss (Gain) on Asset Disposals and Impairments	$	(4,748	)	$	164
	OPERATING INCOME
	Crude Oil Gathering	$	11,014		$	9,027
	Terminalling and Transportation	54,410			19,549
	Total Segment Operating Income	65,424			28,576
	Unallocated general and administrative expenses	(3,179		)	(4,317		)
	Interest and financing costs, net	(17,747		)	(5,604		)
	Interest income	—			23
	NET INCOME	$	44,498		$	18,678

Organization_and_Basis_of_Pres2

Organization and Basis of Presentation, Fair Value (Details) (USD $)	3 Months Ended
In Billions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2014	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014	Dec. 31, 2013
	Minimum	Maximum	Carrying value of debt	Carrying value of debt	Fair value of debt	Fair value of debt
Fair Value, Balance Sheet Grouping, Financial Statement Captions	'	'	'	'	'	'
Percent of trade payables outstanding	'	1.00%	'	'	'	'
Percent of trade receivables outstanding	'	1.00%	'	'	'	'
Financial instruments, outstanding term	'90 days	'	'	'	'	'
Total debt	'	'	$1.20	$1.20	$1.20	$1.20

Acquisitions_Details

Acquisitions (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Discontinued operations	'	'
Asset disposal date	18-Mar-14	'
Proceeds from sale of assets	$9,721,000	$0
Gain (loss) on asset disposals	4,748,000	-164,000
Pro Forma Information	'	'
Pro forma disclosure impracticality	'We have not provided disclosure of pro forma revenues and earnings as if the Acquisitions from Tesoro had been operating prior to June 1, 2013 as part of our operations during the three months ended March 31, 2013. BP managed and operated the Los Angeles Terminal Assets and the Los Angeles Logistics Assets as part of its refining operations, and historical U.S. GAAP financial information specific to the these assets is not available. As a result, preparing pro forma information was determined to be impracticable.	'
Marine terminals	'	'
Acquisition	'	'
Number of assets (assets)	4	'
Petroleum coke handling and storage facility	'	'
Acquisition	'	'
Number of assets (assets)	1	'
Regulated Common Carrier Pipelines	'	'
Acquisition	'	'
Number of assets (assets)	1	'
Jet Fuel Pipelines	'	'
Acquisition	'	'
Number of assets (assets)	1	'
Los Angeles Terminal Assets	'	'
Acquisition	'	'
Number of assets (assets)	6	'
Effective date of acquisition	1-Jun-13	'
Los Angeles Logistics Assets	'	'
Acquisition	'	'
Effective date of acquisition	6-Dec-13	'
Los Angeles Logistics Assets | Marine terminals	'	'
Acquisition	'	'
Number of assets (assets)	2	'
Los Angeles Logistics Assets | Petroleum coke handling and storage facility	'	'
Acquisition	'	'
Number of assets (assets)	1	'
Los Angeles Logistics Assets | Products terminals	'	'
Acquisition	'	'
Number of assets (assets)	1	'
Los Angeles Logistics Assets | Marine storage terminals	'	'
Acquisition	'	'
Number of assets (assets)	1	'
Northwest Products System	'	'
Acquisition	'	'
Effective date of acquisition	19-Jun-13	'
Purchase price	354,800,000	'
Pro forma revenue	'	63,276,000
Pro forma net income	'	$21,519,000
Northwest Products System | Regulated Common Carrier Pipelines	'	'
Acquisition	'	'
Number of assets (assets)	1	'
Northwest Products System | Jet Fuel Pipelines	'	'
Acquisition	'	'
Number of assets (assets)	1	'
Northwest Products System | Refined Product Terminals	'	'
Acquisition	'	'
Number of assets (assets)	3	'

RelatedParty_Transactions_Summ

Related-Party Transactions, Summary of Transactions (Details) (USD $)	3 Months Ended						0 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014		Mar. 31, 2013		Apr. 23, 2014
			Tesoro		Tesoro		Subsequent Event
Related Party Transaction	'	'	'		'		'
Revenues	$109,580,000	$47,892,000	$109,580,000		$47,892,000		'
Operating and maintenance expenses	'	'	10,271,000	[1]	3,397,000	[1]	'
General and administrative expenses	'	'	7,480,000		2,826,000		'
Imbalance settlement gains	2,417,000	2,424,000	2,417,000		2,424,000		'
Cash distribution paid to Tesoro	16,300,000	'	'		'		'
Declaration date	'	'	'		'		23-Apr-14
Cash distributions per unit (dollars per unit)	$0.56	$0.47	'		'		$0.59
Distribution date	13-Feb-14	'	'		'		15-May-14
Cash distribution declared to Tesoro	$23,129,000	$14,835,000	'		'		$18,100,000
[1]	Operating and maintenance expenses include imbalance settlement gains of $2.4 million for both the three months ended MarchB 31, 2014 and 2013.

Net_Income_Per_Unit_Details

Net Income Per Unit (Details) (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013
Net Income Per Unit	'		'
Net income attributable to partners	$44,498		$18,678
Partners' distributions (including IDRs)	-6,847	[1]	-1,666	[1]
Limited partners' distributions on common units	-23,129		-14,835
Limited partnerbs distributions on subordinated units	-9,000		-7,475
Allocation of distributions less (greater) than earnings	5,522		-5,298
Weighted average limited partner units outstanding:	'		'
Common units - basic (units)	39,186,006		28,861,234
Common unit equivalents (units)	98,382		67,894
Common units - diluted (units)	39,284,388		28,929,128
Subordinated units - basic and diluted (units)	15,254,890		15,254,890
Net income per limited partner unit:	'		'
Common - basic and diluted (dollars per unit)	$0.64	[2]	$0.40	[2]
Subordinated - basic and diluted (dollars per unit)	$0.64	[2]	$0.37	[2]
Footnote	'		'
General partnerbs ownership interest	2.00%		2.00%
Maximum percentage distribution to general partner	50.00%		50.00%
Minimum distribution level for IDRs	$0.39		$0.39
General Partner	'		'
Net Income Per Unit	'		'
Net income attributable to partners	6,836		'
Partners' distributions (including IDRs)	-6,847		-1,666
Allocation of distributions less (greater) than earnings	2,761		-107
Total partners' earnings	9,608		1,559
Limited Partner, common units	'		'
Net Income Per Unit	'		'
Net income attributable to partners	27,109		'
Limited partners' distributions on common units	-23,129		-14,835
Allocation of distributions less (greater) than earnings	1,987		-3,396
Total partners' earnings	25,116		11,439
Subordinated	'		'
Net Income Per Unit	'		'
Net income attributable to partners	10,553		'
Limited partnerbs distributions on subordinated units	-9,000		-7,475
Allocation of distributions less (greater) than earnings	774		-1,795
Total partners' earnings	$9,774		$5,680
[1]	General partnerbs distributions (including IDRs) consist of an approximate 2% general partner interest and IDRs, which entitle the general partner to receive increasing percentages, up to 50%, of quarterly distributions in excess of $0.388125 per unit per quarter. See Note K of our Annual Report on Form 10-K for the year ended DecemberB 31, 2013 for further discussion related to IDRs.
[2]	We base our calculation of net income per unit on the weighted-average number of common and subordinated limited partner units outstanding during the period. Therefore, as a result of the public offering of common units in January 2013, net income per common and subordinated limited partner units will not agree for the three months ended March 31, 2013.

Property_Plant_and_Equipment_D

Property, Plant and Equipment (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Property, Plant and Equipment	'	'
Gross Property, Plant and Equipment	$1,529,983	$1,503,501
Accumulated depreciation	-150,705	-135,200
Net Property, Plant and Equipment	1,379,278	1,368,301
Crude Oil Gathering	'	'
Property, Plant and Equipment	'	'
Gross Property, Plant and Equipment	189,769	172,114
Terminalling and Transportation	'	'
Property, Plant and Equipment	'	'
Gross Property, Plant and Equipment	1,337,745	1,330,150
Other	'	'
Property, Plant and Equipment	'	'
Gross Property, Plant and Equipment	$2,469	$1,237

Major_Customer_and_Concentrati1

Major Customer and Concentrations of Credit Risk (Details)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Major Customer and Concentrations of Credit Risk [Abstract]	'	'
Percentage of revenue from Tesoro	88.00%	93.00%

Debt_Total_Details

Debt, Total (Details) (USD $)	Mar. 31, 2014		Dec. 31, 2013
Debt Instrument	'		'
Capital lease obligations	$8,680,000		$8,745,000
Total Debt	1,164,106,000		1,164,343,000
Current maturities	-328,000		-323,000
Debt, less current maturities	1,163,778,000		1,164,020,000
Revolving Credit Facility	'		'
Debt Instrument	'		'
Borrowings under Revolving Credit Facility	0		0
5.875% TLLP Senior Notes due 2020	'		'
Debt Instrument	'		'
Senior Notes	605,426,000	[1]	605,598,000	[1]
Debt Instrument, Unamortized Premium	5,400,000		5,600,000
6.125% TLLP Senior Notes due 2021	'		'
Debt Instrument	'		'
Senior Notes	$550,000,000		$550,000,000
[1]	Includes an unamortized premium of $5.4 million and $5.6 million as of MarchB 31, 2014 and DecemberB 31, 2013, respectively.

Debt_Revolver_and_Senior_Notes

Debt, Revolver and Senior Notes (Details) (USD $)	3 Months Ended
	Mar. 31, 2014		Dec. 31, 2013
Revolving Credit Facility	'		'
Revolving Credit Facility	'		'
Total loan availability	$575,000,000		'
Maximum loan availability	650,000,000		'
Borrowings under Revolving Credit Facility	0		0
Letters of credit, amount outstanding	300,000		'
Unused loan availability	574,700,000		'
Maturity date	31-Dec-17		'
Commitment Fee (unused portion)	0.50%	[1]	'
Collateral, Revolving Credit Facility	'Our Revolving Credit Facility is non-recourse to Tesoro, except for TLGP, and is guaranteed by all of our subsidiaries and secured by substantially all of our assets.		'
Base Rate | Revolving Credit Facility	'		'
Revolving Credit Facility	'		'
Reference Rate Percent	3.25%	[1]	'
Eurodollar or Base Rate Margin	1.50%	[1]	'
Eurodollar | Revolving Credit Facility	'		'
Revolving Credit Facility	'		'
Reference Rate Percent	0.15%	[1]	'
Eurodollar or Base Rate Margin	2.50%	[1]	'
Registration Rights Agreement | 5.875% TLLP Senior Notes due 2020	'		'
Debt Instrument	'		'
Debt Instrument, Face Amount	$250,000,000		'
[1]	We have the option to elect if the borrowings will bear interest at either a base rate plus the base rate margin, or a Eurodollar rate, for the applicable period, plus the Eurodollar margin at the time of the borrowing. The applicable margin varies based upon a certain leverage ratio, as defined by the Revolving Credit Facility. We also incur commitment fees for the unused portion of the Revolving Credit Facility at an annual rate. Letters of credit outstanding under the Revolving Credit Facility incur fees at the Eurodollar margin rate.

Commitments_and_Contingencies_2

Commitments and Contingencies (Details) (USD $)	1 Months Ended	3 Months Ended
	Sep. 30, 2013	Mar. 31, 2014	Dec. 31, 2013
	bbl
Changes in Environmental Loss Contingency	'	'	'
Balance at December 31, 2013	'	$24,440,000	'
Additions	'	5,831,000	'
Expenditures	'	-2,477,000	'
Balance at March 31, 2014	'	27,794,000	'
Number of outstanding lawsuits, administrative proceedings and governmental investigations (claims)	'	0	'
Tioga Crude Oil Pipeline Release	'	'	'
Changes in Environmental Loss Contingency	'	'	'
Balance at December 31, 2013	'	11,568,000	'
Additions	'	5,636,000	'
Expenditures	'	-851,000	'
Balance at March 31, 2014	'	16,353,000	'
Barrels Of Oil Released (barrels)	20,000	'	'
Insurance Settlements Receivable	'	17,200,000	14,000,000
Environmental Liability Insurance Deductible	'	1,000,000	'
Environmental Liabilities Insurance Coverage Limit	'	25,000,000	'
Proceeds from Insurance Settlement	'	2,400,000	'
Chevron Corrective Action Order	'	'	'
Changes in Environmental Loss Contingency	'	'	'
Balance at December 31, 2013	'	8,016,000	'
Additions	'	0	'
Expenditures	'	-1,515,000	'
Balance at March 31, 2014	'	6,501,000	'
Diesel fuel release, period of occurrence	'	'3/18/2013	'
Other Liabilities	'	'	'
Changes in Environmental Loss Contingency	'	'	'
Balance at December 31, 2013	'	4,856,000	'
Additions	'	195,000	'
Expenditures	'	-111,000	'
Balance at March 31, 2014	'	4,940,000	'
Northwest Products System	'	'	'
Changes in Environmental Loss Contingency	'	'	'
Other Environmental Liabilities, Noncurrent	'	$4,700,000	$4,700,000
PHMSA | Chevron Corrective Action Order	'	'	'
Changes in Environmental Loss Contingency	'	'	'
Regulatory Action Issuance Date	'	22-Mar-13	'
Department of Environmental Quality Division of Water | Chevron Corrective Action Order	'	'	'
Changes in Environmental Loss Contingency	'	'	'
Regulatory Action Issuance Date	'	11-Apr-13	'

Equity_Units_Rollforward_Detai

Equity, Units Rollforward (Details)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Common units outstanding (units)	39,199,766	'	39,148,916
Tesoro owned subordinated units outstanding (units)	15,254,890	'	15,254,890
General partner units outstanding (units)	1,110,282	'	1,110,282
General partnerbs ownership interest	2.00%	2.00%	'
Affiliated partner ownership interest	36.40%	'	'
Units issued, unit-based compensation (units)	50,850	'	'
Units withheld for taxes (units)	22,595	'	'
Public common units	'	'	'
Common units outstanding (units)	35,343,942	'	'
Tesoro common units	'	'	'
Common units outstanding (units)	3,855,824	'	'
Subordinated	'	'	'
Tesoro owned subordinated units outstanding (units)	15,254,890	'	'
General Partner	'	'	'
General partner units outstanding (units)	1,110,282	'	'

Equity_Equity_Activity_Details

Equity, Equity Activity (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Increase (Decrease) in Partners' Capital	'	'
Balance at December 31, 2013	$245,352	'
Quarterly distributions	-36,552	'
Net income attributable to partners	44,498	18,678
Other	1,213	'
Balance at March 31, 2014	254,511	'
Common	'	'
Increase (Decrease) in Partners' Capital	'	'
Balance at December 31, 2013	459,261	'
Quarterly distributions	-22,448	'
Net income attributable to partners	27,109	'
Other	967	'
Balance at March 31, 2014	464,889	'
Subordinated	'	'
Increase (Decrease) in Partners' Capital	'	'
Balance at December 31, 2013	-161,311	'
Quarterly distributions	-8,619	'
Net income attributable to partners	10,553	'
Other	-13	'
Balance at March 31, 2014	-159,390	'
General Partner	'	'
Increase (Decrease) in Partners' Capital	'	'
Balance at December 31, 2013	-52,598	'
Quarterly distributions	-5,485	'
Net income attributable to partners	6,836	'
Other	259	'
Balance at March 31, 2014	($50,988)	'

Equity_Allocations_of_Net_Inco

Equity, Allocations of Net Income (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Equity [Abstract]	'	'
Net income attributable to partners	$44,498	$18,678
General partnerbs IDRs	-6,068	-1,186
Net income available to partners excluding IDRs	38,430	17,492
General partnerbs ownership interest	2.00%	2.00%
General partnerbs allocated interest in net income	768	350
General partnerbs IDRs	6,068	1,186
Total general partnerbs interest in net income	$6,836	$1,536
Incentive cash distribution allocation, percentage	100.00%	'

Equity_Cash_Distributions_Deta

Equity, Cash Distributions (Details) (USD $)	3 Months Ended			0 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Apr. 23, 2014
			Unit-based compensation awards	Subsequent Event
Distribution Made to Member or Limited Partner	'	'	'	'
Declaration date	'	'	'	23-Apr-14
Cash distributions per unit (dollars per unit)	$0.56	$0.47	'	$0.59
Distribution date	13-Feb-14	'	'	15-May-14
Unitholders date of record	'	'	'	5-May-14
Total cash distributions declared	$38,976,000	$23,976,000	'	$39,000,000
Cash distributions paid, per unit (dollars per unit)	$0.56	'	'	'
Total cash distribution paid	$36,300,000	'	$300,000	'

Equity_Distributions_Earned_De

Equity, Distributions Earned (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013
Distributions Earned by Limited or General Partners	'		'
General partnerbs IDRs	$6,068		$1,186
Total general partnerbs distributions	6,847	[1]	1,666	[1]
Limited partners' distributions on common units	23,129		14,835
Limited partnerbs distributions on subordinated units	9,000		7,475
Total Cash Distributions	38,976		23,976
General Partner	'		'
Distributions Earned by Limited or General Partners	'		'
General partnerbs distributions	779		480
General partnerbs IDRs	6,068		1,186
Total general partnerbs distributions	6,847		1,666
Common	'		'
Distributions Earned by Limited or General Partners	'		'
Limited partners' distributions on common units	23,129		14,835
Total limited partners' distributions	32,129		22,310
Subordinated	'		'
Distributions Earned by Limited or General Partners	'		'
Limited partnerbs distributions on subordinated units	$9,000		$7,475
[1]	General partnerbs distributions (including IDRs) consist of an approximate 2% general partner interest and IDRs, which entitle the general partner to receive increasing percentages, up to 50%, of quarterly distributions in excess of $0.388125 per unit per quarter. See Note K of our Annual Report on Form 10-K for the year ended DecemberB 31, 2013 for further discussion related to IDRs.

EquityBased_Compensation_Detai

Equity-Based Compensation (Details) (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Unit-based compensation expense	'	'
Unit-Based Compensation Expense	$347	$442
Performance phantom units	'	'
Unit-based compensation expense	'	'
Unit-Based Compensation Expense	293	401
Unit awards	'	'
Awards granted (units)	39,380	'
Grant date fair value (dollars per unit)	$67.97	'
Vesting period (years)	'3 years	'
Service phantom units	'	'
Unit-based compensation expense	'	'
Unit-Based Compensation Expense	$54	$41
Unit awards	'	'
Awards granted (units)	3,324	'
Grant date fair value (dollars per unit)	$58.13	'
Vesting period (years)	'1 year	'

Segment_Disclosures_Narrative_

Segment Disclosures, Narrative Information (Details)	3 Months Ended
	Mar. 31, 2014
	segments
Segment Reporting Information	'
Number of operating segments (segments)	2
Segment reporting, foreign operations	'We do not have any foreign operations.
Crude oil gathering system	'
Segment Reporting Information	'
Number of assets (assets)	1
Regulated Common Carrier Pipelines	'
Segment Reporting Information	'
Number of assets (assets)	1
Jet Fuel Pipelines	'
Segment Reporting Information	'
Number of assets (assets)	1
Crude oil and refined products terminals and storage facilities	'
Segment Reporting Information	'
Number of assets (assets)	20
Marine terminals	'
Segment Reporting Information	'
Number of assets (assets)	4
Rail car unloading facility	'
Segment Reporting Information	'
Number of assets (assets)	1
Petroleum coke handling and storage facility	'
Segment Reporting Information	'
Number of assets (assets)	1

Segment_Disclosures_Results_De

Segment Disclosures, Results (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
REVENUES	'	'	'
Affiliate	$109,580	$47,892	'
Third-party	15,469	3,730	'
Total Revenues	125,049	51,622	'
OPERATING AND MAINTENANCE EXPENSES	'	'	'
Segment Operating and Maintenance Expenses	45,098	19,489	'
IMBALANCE SETTLEMENT GAINS	'	'	'
Segment Imbalance Settlement Gains	-2,417	-2,424	'
GENERAL AND ADMINISTRATIVE EXPENSES	'	'	'
Segment General and Administrative Expenses	6,167	1,736	'
DEPRECIATION AND AMORTIZATION EXPENSES	'	'	'
Segment Depreciation and Amortization Expenses	15,525	4,081	'
LOSS (GAIN) ON ASSET DISPOSALS AND IMPAIRMENTS	'	'	'
Segment Loss (Gain) on Asset Disposals	-4,748	164	'
OPERATING INCOME	'	'	'
Segment Operating Income	65,424	28,576	'
Interest and financing costs, net	-17,747	-5,604	'
Interest income	0	23	'
NET INCOME	44,498	18,678	'
Segment Reporting Information, Additional Information	'	'	'
Capital Expenditures	26,484	10,236	'
Identifiable Assets	1,536,186	'	1,502,312
Crude Oil Gathering	'	'	'
REVENUES	'	'	'
Affiliate	23,251	21,377	'
Third-party	1,373	314	'
Total Revenues	24,624	21,691	'
OPERATING AND MAINTENANCE EXPENSES	'	'	'
Segment Operating and Maintenance Expenses	12,072	12,360	'
IMBALANCE SETTLEMENT GAINS	'	'	'
Segment Imbalance Settlement Gains	-1,137	-1,396	'
GENERAL AND ADMINISTRATIVE EXPENSES	'	'	'
Segment General and Administrative Expenses	1,652	694	'
DEPRECIATION AND AMORTIZATION EXPENSES	'	'	'
Segment Depreciation and Amortization Expenses	1,023	1,006	'
LOSS (GAIN) ON ASSET DISPOSALS AND IMPAIRMENTS	'	'	'
Segment Loss (Gain) on Asset Disposals	0	0	'
OPERATING INCOME	'	'	'
Segment Operating Income	11,014	9,027	'
Segment Reporting Information, Additional Information	'	'	'
Capital Expenditures	17,655	3,945	'
Identifiable Assets	173,993	'	154,583
Terminalling and Transportation	'	'	'
REVENUES	'	'	'
Affiliate	86,329	26,515	'
Third-party	14,096	3,416	'
Total Revenues	100,425	29,931	'
OPERATING AND MAINTENANCE EXPENSES	'	'	'
Segment Operating and Maintenance Expenses	33,026	7,129	'
IMBALANCE SETTLEMENT GAINS	'	'	'
Segment Imbalance Settlement Gains	-1,280	-1,028	'
GENERAL AND ADMINISTRATIVE EXPENSES	'	'	'
Segment General and Administrative Expenses	4,515	1,042	'
DEPRECIATION AND AMORTIZATION EXPENSES	'	'	'
Segment Depreciation and Amortization Expenses	14,502	3,075	'
LOSS (GAIN) ON ASSET DISPOSALS AND IMPAIRMENTS	'	'	'
Segment Loss (Gain) on Asset Disposals	-4,748	164	'
OPERATING INCOME	'	'	'
Segment Operating Income	54,410	19,549	'
Segment Reporting Information, Additional Information	'	'	'
Capital Expenditures	8,829	6,291	'
Identifiable Assets	1,292,336	'	1,298,073
Other	'	'	'
OPERATING INCOME	'	'	'
Unallocated general and administrative expenses	-3,179	-4,317	'
Interest and financing costs, net	-17,747	-5,604	'
Interest income	0	23	'
Segment Reporting Information, Additional Information	'	'	'
Identifiable Assets	$69,857	'	$49,656