Andeavor Logistics (ANDX) 10-Q 12 Nov 13 2013 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 30, 2013	Nov. 05, 2013	Nov. 05, 2013	Nov. 05, 2013
		Common	Subordinated	General Partner
Entity Registrant Name	'TESORO LOGISTICS LP	'	'	'
Entity Central Index Key	'0001507615	'	'	'
Document Type	'10-Q	'	'	'
Document Period End Date	30-Sep-13	'	'	'
Amendment Flag	'false	'	'	'
Document Fiscal Year Focus	'2013	'	'	'
Document Fiscal Period Focus	'Q3	'	'	'
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	'Accelerated Filer	'	'	'
Entity Common Stock, Units Outstanding	'	31,722,568	15,254,890	958,587

Condensed_Statements_of_Combin

Condensed Statements of Combined Consolidated Operations (Unaudited) (USD $)	3 Months Ended				9 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
REVENUES	'		'		'		'
Affiliate	$78,958		$39,241		$180,952		$98,052
Third-party	14,819		4,712		24,322		11,049
Total Revenues	93,777		43,953		205,274		109,101
COSTS AND EXPENSES	'		'		'		'
Operating and maintenance expenses	41,004		20,541		84,728		52,683
Imbalance settlement gains	-1,159		-2,644		-6,159		-7,691
Depreciation and amortization expenses	13,028		3,433		23,447		9,123
General and administrative expenses	7,554		4,251		20,211		11,558
Loss on asset disposals	13		21		177		257
Total Costs and Expenses	60,440		25,602		122,404		65,930
OPERATING INCOME	33,337		18,351		82,870		43,171
Interest and financing costs, net	-12,284		-1,810		-24,459		-3,360
Interest income	0		0		493		0
NET INCOME	21,053		16,541		58,904		39,811
Loss (income) attributable to Predecessors	0		-963		0		408
Net income attributable to partners	21,053		15,578		58,904		40,219
General partnerbs interest in net income, including incentive distribution rights	-3,563		-842		-7,077		-1,436
Limited partnersb interest in net income	$17,490		$14,736		$51,827		$38,783
Net income per limited partner unit:	'		'		'		'
Common - basic (dollars per unit)	$0.37	[1]	$0.55	[1]	$1.14	[1]	$1.34	[1]
Common - diluted (dollars per unit)	$0.37	[1]	$0.54	[1]	$1.14	[1]	$1.33	[1]
Subordinated - basic and diluted (dollars per unit)	$0.37	[1]	$0.41	[1]	$1.10	[1]	$1.19	[1]
Weighted average limited partner units outstanding:	'		'		'		'
Common units - basic (units)	31,722,523		15,553,113		30,456,062		15,424,700
Common units - diluted (units)	31,828,764		15,663,537		30,549,230		15,513,252
Subordinated units - basic and diluted (units)	15,254,890		15,254,890		15,254,890		15,254,890
Cash distributions per unit (dollars per unit)	$0.55		$0.46		$1.54		$1.24
[1]	We base our calculation of net income per unit, including the allocation of distributions greater than earnings, on the weighted-average number of common and subordinated limited partner units outstanding during the period. Therefore, as a result of the January Offering and common units issued to Tesoro in the Carson Terminal Assets Acquisition, net income per common and subordinated limited partner units will not agree for the nine months ended SeptemberB 30, 2013.

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (Unaudited) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
CURRENT ASSETS	'	'
Cash and cash equivalents	$65,081	$19,290
Receivables	'	'
Trade	7,855	343
Affiliate	29,850	17,660
Prepayments	2,326	1,130
Other current assets	4,903	0
Total Current Assets	110,015	38,423
NET PROPERTY, PLANT AND EQUIPMENT	1,061,445	274,372
DEPOSITS	84	40,041
GOODWILL	8,738	0
OTHER NONCURRENT ASSETS	25,370	10,342
Total Assets	1,205,652	363,178
Accounts payable	'	'
Trade	18,689	9,005
Affiliate	7,877	7,089
Deferred revenue - affiliate	1,820	2,027
Accrued interest and financing costs	15,925	6,116
Accrued environmental liabilities	13,428	0
Other current liabilities	5,530	3,095
Total Current Liabilities	63,269	27,332
OTHER NONCURRENT LIABILITIES	5,543	47
DEBT	908,489	353,922
COMMITMENTS AND CONTINGENCIES (NOTE H)	'	'
EQUITY (DEFICIT)	'	'
Common unitholders; 31,722,568 units issued and outstanding (20,495,254 in 2012)	402,595	153,037
Subordinated unitholders; 15,254,890 units issued and outstanding (15,254,890 in 2012)	-154,394	-144,162
General partner; 958,587 units issued and outstanding (729,596 in 2012)	-19,850	-26,998
Total Equity (Deficit)	228,351	-18,123
Total Liabilities and Equity (Deficit)	$1,205,652	$363,178

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Unaudited), (Parenthetical)	Sep. 30, 2013	Dec. 31, 2012
EQUITY (DEFICIT)	'	'
Common units issued (units)	31,722,568	20,495,254
Subordinated units issued (units)	15,254,890	15,254,890
General partner units issued (units)	958,587	729,596
Common units outstanding (units)	31,722,568	20,495,254
Subordinated units outstanding (units)	15,254,890	15,254,890
General partner units outstanding (units)	958,587	729,596

Condensed_Statements_of_Combin1

Condensed Statements of Combined Consolidated Cash Flows (Unaudited) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:	'	'
Net income	$58,904	$39,811
Adjustments to reconcile net income to net cash from operating activities:	'	'
Depreciation and amortization expenses	23,447	9,123
Amortization of debt issuance costs	1,408	664
Unit-based compensation expense	1,424	863
Loss on asset disposals	177	257
Changes in current assets:	'	'
Receivables - trade	-7,512	-162
Receivables - affiliate	-12,374	-3,924
Prepayments and other	-1,002	-432
Changes in current liabilities:	'	'
Accounts payable - trade	3,643	1,465
Accounts payable - affiliate	720	2,717
Deferred revenue - affiliate	-207	259
Accrued interest and financing costs	9,809	966
Other current liabilities	3,409	591
Changes in other noncurrent assets and liabilities	795	1,473
Net cash from operating activities	82,641	53,671
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:	'	'
Capital expenditures	-46,908	-68,958
Capital expenditure reimbursements by affiliate	354	5,250
Proceeds from sale of assets	0	15
Acquisitions	-314,757	0
Net cash used in investing activities	-361,311	-63,693
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:	'	'
Proceeds from debt offering	550,000	350,000
Proceeds from issuance of common units, net of issuance costs	391,348	0
Proceeds from issuance of general partner units, net of issuance costs	8,319	0
Quarterly distributions to unitholders	-67,797	-35,252
Quarterly distributions to general partner	-5,215	-833
Distributions in connection with acquisitions	-544,000	-256,500
Borrowings under revolving credit agreement	544,000	68,000
Repayments under revolving credit agreement	-544,000	-118,000
Payments on capital lease	-225	0
Capital contributions by affiliate	4,562	2,993
Sponsor contributions of equity to the Predecessors	0	44,623
Financing costs and other	-12,531	-8,061
Net cash from financing activities	324,461	46,970
INCREASE IN CASH AND CASH EQUIVALENTS	45,791	36,948
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	19,290	18,326
CASH AND CASH EQUIVALENTS, END OF PERIOD	$65,081	$55,274

Organization_and_Basis_of_Pres

Organization and Basis of Presentation (Notes)	9 Months Ended
	Sep. 30, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Organization and Basis of Presentation	'
	ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
	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.
	Organization
	TLLP is a Delaware limited partnership formed in December 2010 by Tesoro and its wholly owned subsidiary, Tesoro Logistics GP, LLC (“TLGP”), our general partner.
	Effective June 1, 2013, we entered into a transaction with Tesoro and TLGP pursuant to which we acquired six marketing and storage terminals located in Southern California and certain assets and properties related thereto (the “Carson Terminal Assets”) from Tesoro (the “Carson Terminal Assets Acquisition”). In addition, we acquired a regulated common carrier products pipeline running from Salt Lake City, Utah to Spokane, Washington (the “Northwest Products Pipeline”), a jet fuel pipeline to the Salt Lake City International Airport and the Boise and Pocatello, Idaho and Pasco, Washington refined products terminals (collectively, the “Northwest Products System”) on June 19, 2013 (the “Northwest Products System Acquisition”) from Chevron Pipe Line Company and Northwest Terminalling Company (collectively, “Chevron”).
	In 2012, we entered into the following transactions with Tesoro and TLGP, pursuant to which we acquired from Tesoro: the Martinez crude oil marine terminal assets (collectively, the “Martinez Crude Oil Marine Terminal”), effective April 1, 2012 (the “Martinez Marine Terminal Acquisition”); the Long Beach marine terminal and related short-haul pipelines, including the Los Angeles short-haul pipelines (collectively, the “Long Beach Assets”), effective September 14, 2012 (the “Long Beach Assets Acquisition”); and the Anacortes rail car unloading facility assets (collectively, the “Anacortes Rail Facility”), effective November 15, 2012 (the “Anacortes Rail Facility Acquisition”). These transactions along with the Carson Terminal Assets Acquisition are collectively referred to as “Acquisitions from Tesoro.”
	Principles of Combination and Consolidation and Basis of Presentation
	The Acquisitions from Tesoro were transfers between entities under common control. As an entity under common control with Tesoro, we record the assets that we acquire from Tesoro on our balance sheet at Tesoro’s historical basis instead of fair value, with the exception of the Carson Terminal Assets, where the historical basis of the assets was equal to the fair value on the acquisition date. Transfers of businesses between entities under common control are accounted for as if the transfer occurred at the beginning of the period, and prior periods are retrospectively adjusted to furnish comparative information. Accordingly, the accompanying financial statements and related notes of TLLP have been retrospectively adjusted to include the historical results of the assets acquired in the Acquisitions from Tesoro for the three and nine months ended September 30, 2012 with the exception of the Carson Terminal Assets since they were not operated by Tesoro prior to their acquisition by TLLP. We refer to the historical results of the Martinez Crude Oil Marine Terminal, the Long Beach Assets and the Anacortes Rail Facility, prior to each acquisition date, collectively as our “Predecessors.” See Note B for additional information regarding the acquisitions.
	The accompanying financial statements and related notes present the combined results of operations and cash flows of our Predecessors at historical cost. The financial statements of our Predecessors have been prepared from the separate records maintained by Tesoro and may not necessarily be indicative of the conditions that would have existed or the results of operations if our Predecessors had been operated as an unaffiliated entity. Our Predecessors did not record revenue for transactions with Tesoro in the Terminalling, Transportation and Storage segment for assets acquired in the Acquisitions from Tesoro prior to the effective date of each acquisition. All intercompany accounts and transactions have been eliminated.
	The interim condensed combined 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.
	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 combined consolidated financial statements and notes should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2012.
	U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses 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, or our Predecessors, for any interim period are not necessarily indicative of results for the full year. Certain prior year balances have been disaggregated in order to conform to the current year presentation.
	We have evaluated subsequent events through the filing of this Form 10-Q.
	We record our financial instruments including cash and cash equivalents, receivables, accounts payable and certain accrued liabilities at their carrying value. We believe the carrying value of these financial instruments approximates fair value. Our fair value assessment incorporates a variety of considerations, including:
	•	the short term duration of the instruments (none of our trade payables or trade 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 $908.8 million and $916.5 million, respectively, as of September 30, 2013, and $354.0 million and $368.7 million, respectively, as of December 31, 2012.
	Significant Accounting Policies - Goodwill
	Goodwill represents the amount the purchase price exceeds the fair value of net assets acquired in a business combination. We do not amortize goodwill. We are required, however, to review goodwill for impairment annually, or more frequently if events or changes in business circumstances indicate the book value of the assets may not be recoverable. In such circumstances, we record the impairment in loss on asset disposals and impairments in our statement of combined consolidated operations. We review the carrying value of goodwill for impairment as of November 1st of each year, or sooner if events or changes in circumstances indicate the carrying amount of a reporting unit may exceed fair value.
	We perform a qualitative analysis to determine whether it is more likely than not that the fair value of goodwill is less than its carrying value. Some of the impairment indicators we consider include significant differences between the carrying amount and the estimated fair value of our assets and liabilities; macroeconomic conditions such as a deterioration in general economic condition or limitations on accessing capital; industry and market considerations, such as a deterioration in the environment in which we operate and an increased competitive environment; cost factors such as increases in labor or other costs that have a negative effect on earnings and cash flows; overall financial performance such as negative or declining cash flows or a decline in actual or planned revenue or earnings compared with actual and projected results of relevant prior periods; other relevant events such as litigation, changes in management, key personnel, strategy or customers; the testing for recoverability of our long-lived assets and a potential decrease in share price. We evaluate the significance of identified events and circumstances on the basis of the weight of evidence along with how they could affect the relationship between the reporting unit’s fair value and carrying value, including positive mitigating events and circumstances. If we determine it is more likely than not that the fair value of goodwill is less than its carrying amount, then a second step is performed to quantify the amount of goodwill impairment. If impairment is indicated, a goodwill impairment charge is recorded to write the goodwill down to its implied fair value. See Note B for additional information regarding goodwill associated with the Northwest Products System Acquisition.

Acquisitions_Notes

Acquisitions (Notes)	9 Months Ended
	Sep. 30, 2013
Business Combinations [Abstract]	'
Acquisitions	'
	ACQUISITIONS
	Carson Terminal Assets Acquisition
	As part of our strategy to make capital investments to expand our existing asset base, we purchased the Carson Terminal Assets, effective June 1, 2013, in exchange for total consideration of $640.0 million, comprised of $544.0 million in cash financed with borrowings under our amended revolving credit facility (the “Revolving Credit Facility”) and the remaining $96.0 million in partnership units. The equity was comprised of 1,445,561 common units and 29,501 general partner units. The Carson Terminal Assets were part of BP’s Southern California refining and marketing business that Tesoro acquired on June 1, 2013. The Carson Terminal Assets Acquisition occurred immediately after Tesoro’s acquisition of the assets from BP.
	Commercial Agreements. We entered into commercial agreements with Tesoro in connection with the Carson Terminal Assets Acquisition under which Tesoro commits to provide us with minimum throughput volumes of refined products and minimum fees for dedicated storage. See Note C for additional information regarding commercial agreements and amendments to other agreements with related parties in connection with this acquisition.
	Financial Information. Tesoro retained responsibility for remediation of known environmental liabilities due to the use or operation of the Carson Terminal Assets prior to the acquisition (“Pre-Closing”) and has indemnified the Partnership for any losses incurred by the Partnership arising out of those remediation obligations. The indemnification for unknown Pre-Closing remediation liabilities is limited to five years. The property, plant and equipment was recorded by TLLP at Tesoro’s historical cost, which is equal to the fair value of the Carson Terminal Assets on June 1, 2013, based on Tesoro’s preliminary assessment of the fair value of the assets acquired and liabilities assumed, pending the completion of an independent valuation. Based on the analysis performed, Tesoro’s historical cost was estimated to be $400.0 million. The Carson Terminal Assets were not considered a stand-alone business in Tesoro’s valuation process, which resulted in a lower allocated fair value for the Carson Terminal Assets. There have been no changes to the preliminary value of the Carson Terminal Assets during the three months ended September 30, 2013. Any subsequent adjustments as a result of the completion of the independent valuation will be reflected as adjustments to the equity of the Partnership. The following was recorded as of June 1, 2013, the date of the Carson Terminal Assets Acquisition (in thousands):
	Prepayments and other	$	208
	Property, plant and equipment	400,000
	Capital lease obligation	(1,185		)
	Preliminary value of Carson Terminal Assets	$	399,023
	We have not provided disclosure of pro forma revenues and earnings as if the Carson Terminal Assets had been operating as part of our operations during all periods presented in these financial statements. BP managed and operated the Carson Terminal Assets as part of its refining operations, and historical U.S. GAAP financial information specific to the Carson Terminal Assets is not available. As a result, preparing pro forma information was determined to be impracticable.
	Northwest Products System Acquisition
	On June 19, 2013, TLLP completed the Northwest Products System Acquisition, which is consistent with our business strategy to pursue accretive acquisitions of complementary assets and provides an opportunity to provide additional fee-based logistics services to Tesoro and third parties. The purchase price for the Northwest Products System was $354.8 million. The amount paid at closing was reduced by an advance deposit of $40.0 million that was paid in December 2012 upon execution of the asset sale and purchase agreements. The Partnership financed the acquisition with proceeds from the public offering of common units on January 14, 2013 (the “January Offering”).
	In accordance with the amended asset sale and purchase agreements, Chevron retained financial and operational responsibility to remediate the site of the release of diesel fuel that occurred at the Northwest Products System near Willard, Utah on March 18, 2013 (the “Diesel Pipeline Release”) for a period of two years, in addition to paying any monetary fines and penalties assessed by any government authority arising from this incident. See Note H for additional information regarding the environmental liabilities associated with the Northwest Products System Acquisition. Pursuant to the regulatory review process associated with the Northwest Products System Acquisition, we agreed to divest our current refined products terminal in Boise, Idaho within approximately six months of the closing date. We have classified the carrying value of the Boise terminal as assets held-for-sale in other current assets in our condensed consolidated balance sheet as of September 30, 2013. The carrying value of the Boise terminal did not exceed the fair value as of September 30, 2013.
	Commercial Agreements. All third-party terminal agreements and any contracts between Chevron and other Chevron affiliates were assigned to TLLP for the Northwest Products System. The refined products pipeline and the jet fuel pipeline are common carrier pipelines regulated by the Federal Energy Regulatory Commission.
	Financial Information. We accounted for the Northwest Products System Acquisition using the acquisition method of accounting, which requires, among other things, that assets acquired at their fair values and liabilities assumed be recognized on the balance sheet as of the acquisition date. Our condensed consolidated balance sheet as of September 30, 2013 reflects the purchase price allocations based on an assessment of the fair value of the assets acquired and liabilities assumed, pending additional review of environmental liabilities assumed. No changes have been recorded to the purchase price allocation during the three months ended September 30, 2013. The table below presents the preliminary acquisition date purchase price allocation (in thousands):
	Prepayments and other	$	53
	Property, plant and equipment	358,362
	Goodwill	8,738
	Other noncurrent assets	4,500
	Other current liabilities	(12,196		)
	Noncurrent liabilities	(4,700		)
	Total purchase price	$	354,757
	The Partnership initially recognized an estimated $16.6 million of environmental liabilities assumed in connection with the Northwest Products System Acquisition, of which $11.9 million was related to a Corrective Action Order (“the CAO”) issued on March 22, 2013. Remaining environmental liabilities related to the CAO were $9.8 million as of September 30, 2013 and were included in accrued environmental liabilities in our condensed consolidated balance sheet. Other current liabilities also include adjustments for accrued property tax liabilities that we assumed on the acquisition date. The other $4.7 million of environmental liabilities assumed in connection with the Northwest Products System Acquisition is included in noncurrent liabilities in our condensed consolidated balance sheet. See Note H for further information regarding environmental liabilities related to the Northwest Products System.
	The following unaudited pro forma condensed combined consolidated results of operations for the three and nine months ended September 30, 2013 and 2012 are presented as if the Northwest Products System Acquisition had been completed on January 1, 2012.
		Three Months Ended					Nine Months Ended
		September 30,					September 30,
		2013			2012		2013		2012
		(Dollars in thousands, except per unit amounts)
	Revenues	$	93,777		$	57,383	$	227,013	$	146,901
	Net income	21,053			20,388		63,744		48,890
	Net income attributable to partners	21,053			19,425		63,744		49,298
	Net income per limited partner unit:
	Common - basic	$	0.37		$	0.48	$	1.12	$	1.21
	Common - diluted	$	0.37		$	0.48	$	1.11	$	1.2
	Subordinated - basic and diluted	$	0.37		$	0.4	$	1.1	$	1.12
	The pro forma condensed combined consolidated results of operations reflect adjustments to the Partnership’s condensed statements of combined consolidated operations to give effect to the following:
	•	historical revenues and direct operating expenses for the Northwest Products System;
	•	the indemnification of remediation efforts in response to the Diesel Pipeline Release; see Note H for additional discussion on the Diesel Pipeline Release;
	•	depreciation expense based on the acquisition date fair value of the Northwest Products System; and
	•	the impact of units issued in the January Offering on the weighted average units outstanding.
	Carson Terminal Assets and Northwest Products System Post-Acquisition Financial Information
	The operations of the Carson Terminal Assets and the Northwest Products System are reported in our Terminalling, Transportation and Storage segment. The following amounts associated with the Carson Terminal Assets Acquisition and the Northwest Products System Acquisition, subsequent to each respective acquisition date, are included in our condensed statements of combined consolidated operations of TLLP (in thousands):
		Three Months Ended			Nine Months Ended
		30-Sep-13			30-Sep-13
	Carson Terminal Assets:
	Total operating revenues	$	23,391		$	30,571
	Net income attributable to partners	8,795			11,578
	Costs associated with the acquisition (a)	—			1,216
	Northwest Products System:
	Total operating revenues	13,563			15,278
	Net income attributable to partners	1,869			2,318
	Costs associated with the acquisition (a)	652			3,382
	____________
	(a)	Costs associated with the acquisitions, including costs to integrate the business, are included in the general and administrative expenses of TLLP in our condensed statements of combined consolidated operations.
	2012 Acquisitions
	We completed the Martinez Marine Terminal Acquisition, the Long Beach Assets Acquisition and the Anacortes Rail Facility Acquisition in 2012 from Tesoro and entered into commercial agreements in connection with these acquisitions under which Tesoro commits to provide us with minimum monthly throughput volumes of crude oil and refined products. See our Annual Report on Form 10-K for the year ended December 31, 2012 for additional information regarding these acquisitions and the commercial agreements with related parties in connection with these acquisitions.

RelatedParty_Transactions_Note

Related-Party Transactions (Notes)	9 Months Ended
	Sep. 30, 2013
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 and storage services to Tesoro, and Tesoro commits to provide us with minimum monthly throughput volumes of crude oil and refined products and minimum fees for dedicated storage.
	If, in any calendar month, Tesoro fails to meet its minimum volume commitments under these agreements, it will be required to pay us a shortfall payment equal to the revenue associated with the difference between the actual throughput and the minimum throughput commitment. These shortfall payments may be applied as a credit against any amounts due above their minimum volume commitments for up to three months after the shortfall occurs. The balance of deferred revenue-affiliate in our condensed consolidated balance sheets at September 30, 2013 and December 31, 2012 includes $0.1 million and $0.3 million, respectively, related to shortfall billings to Tesoro and the remaining amount represents advanced billings.
	We believe the terms and conditions under these agreements, as well as our other agreements with Tesoro are generally no less favorable to either party than those that could have been negotiated with unaffiliated parties with respect to similar services. See our Annual Report on Form 10-K for the year ended December 31, 2012 for a description of our commercial agreements and other agreements with Tesoro.
	We entered into or amended the following agreements with Tesoro in 2013:
	Amended and Restated Master Terminalling Services Agreement. The Partnership entered into a master terminalling services agreement with Tesoro at the closing of the initial public offering (the “Initial Offering”) in April 2011. The agreement was amended and restated on both February 22, 2013 and May 3, 2013, to allow for changes to ancillary services and related costs and fees to be made by purchase orders executed among the parties and to increase the Stockton terminal minimum throughput by 8,400 barrels per day.
	Second Amended and Restated Trucking Transportation Services Agreement. The Partnership entered into a trucking transportation services agreement with Tesoro at the closing of the Initial Offering. The agreement was amended and restated on March 26, 2013 to allow for changes to ancillary services and related costs and fees to be made by purchase orders executed among the parties. In addition, the amendment adjusted the comparison of competitive rates to include more market participants in determining future fee adjustments, and it allows for a quarterly rate adjustment in lieu of the previously established annual adjustment.
	Master Terminalling and Services Agreement - Southern California. The Partnership entered into a ten-year master terminalling services agreement for Southern California (the “MTSA-Southern California”) with Tesoro at the closing of the Carson Terminal Assets Acquisition on June 1, 2013. Tesoro has the option to extend the term for up to two renewal terms of five years each. Pursuant to the MTSA-Southern California, Tesoro pays the Partnership fees for certain terminalling, storage and ancillary services at the Partnership’s Colton, Hynes, Hathaway, San Diego and Vinvale terminals, which were acquired as part of the Carson Terminal Assets Acquisition.
	Carson Storage Services Agreement. The Partnership entered into a ten-year storage services agreement (the “CSSA”) with Tesoro with respect to the Carson crude oil terminal, which was acquired as part of the Carson Terminal Assets Acquisition on June 1, 2013. Tesoro has the option to extend the term for up to two renewal terms of five years each. Under the CSSA, Tesoro pays the Partnership fees for storage and handling services for crude oil, refinery feedstocks and refined products at the Carson crude oil terminal.
	Second Amended and Restated Omnibus Agreement. The Partnership entered into an omnibus agreement with Tesoro at the closing of the Initial Offering. The agreement has been amended for each acquisition from Tesoro including the most recent June 1, 2013 amendment, which was entered into in connection with the Carson Terminal Assets Acquisition (the “Amended Omnibus Agreement”). In addition, the schedules to the Amended Omnibus Agreement were amended and restated (the “Amended Omnibus Schedules”), effective June 1, 2013. The Amended Omnibus Schedules include the Carson Terminal Assets, establish indemnification by Tesoro for certain matters including environmental, title and tax matters associated with the Carson Terminal Assets and increase the annual administrative fee payable by the Partnership to Tesoro under the Amended Omnibus Agreement from $2.5 million to $4.0 million.
	Amended and Restated Operational Services Agreement. The Partnership entered into an operational services agreement with Tesoro at the closing of the Initial Offering, which has subsequently been amended for each acquisition from Tesoro (the “Amended Operational Services Agreement”). The schedules to the Amended Operational Services Agreement were most recently amended on June 1, 2013, in connection with the Carson Terminal Assets Acquisition, to include the Carson Terminal Assets, which increased the annual fee we pay to Tesoro for certain operational services by $1.6 million to $3.5 million.
	Affiliate Transactions
	Summary of Transactions. A summary of revenue and expense transactions with Tesoro, including expenses directly charged and allocated to our Predecessors, are as follows (in thousands):
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2013		2012		2013		2012
	Revenues	$	78,958	$	39,241	$	180,952	$	98,052
	Operating and maintenance expenses (a)	9,062		3,799		17,587		12,212
	General and administrative expenses	4,877		3,518		11,503		9,347
	____________
	(a)	Operating and maintenance expenses include imbalance settlement gains of $1.2 million and $2.6 million for the three months ended September 30, 2013 and 2012, respectively, and $6.2 million and $7.7 million for the nine months ended September 30, 2013 and 2012, respectively.
	In accordance with our partnership agreement, our common, subordinated and general partner interests are entitled to receive quarterly distributions of available cash. In February, May and August 2013, we paid quarterly cash distributions, of which $30.3 million was paid to Tesoro and TLGP, including incentive distribution rights (“IDRs”). On October 24, 2013, we declared a quarterly cash distribution of $0.5450 per unit, which will be paid on November 14, 2013. The distribution will consist of $13.6 million to Tesoro and TLGP, including IDRs.

Net_Income_Per_Unit_Notes

Net Income Per Unit (Notes)	9 Months Ended
	Sep. 30, 2013
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 attributable to the Partnership is allocated between the limited (both common and subordinated) and general partners in accordance with our partnership agreement.
	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.
	The calculation of net income per unit is as follows (in thousands, except unit and per unit amounts):
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2013			2012			2013			2012
	Net income attributable to partners	$	21,053		$	15,578		$	58,904		$	40,219
	General partner’s distributions (including IDRs) (a)	(3,793		)	(840		)	(7,608		)	(1,439		)
	Limited partners’ distributions on common units	(17,289		)	(9,185		)	(48,303		)	(21,363		)
	Limited partner’s distributions on subordinated units	(8,314		)	(6,941		)	(23,569		)	(18,954		)
	Distributions greater than earnings	$	(8,343	)	$	(1,388	)	$	(20,576	)	$	(1,537	)
	General partner’s earnings:
	Distributions (including IDRs) (a)	$	3,793		$	840		$	7,608		$	1,439
	Allocation of distributions greater than earnings	(167		)	(28		)	(411		)	(31		)
	Total general partner’s earnings	$	3,626		$	812		$	7,197		$	1,408
	Limited partners’ earnings on common units:
	Distributions	$	17,289		$	9,185		$	48,303		$	21,363
	Allocation of distributions greater than earnings	(5,521		)	(684		)	(13,436		)	(757		)
	Total limited partners’ earnings on common units	$	11,768		$	8,501		$	34,867		$	20,606
	Limited partner’s earnings on subordinated units:
	Distributions	$	8,314		$	6,941		$	23,569		$	18,954
	Allocation of distributions greater than earnings	(2,655		)	(676		)	(6,729		)	(749		)
	Total limited partner’s earnings on subordinated units	$	5,659		$	6,265		$	16,840		$	18,205
	Weighted average limited partner units outstanding:
	Common units - basic	31,722,523			15,553,113			30,456,062			15,424,700
	Common unit equivalents	106,241			110,424			93,168			88,552
	Common units - diluted	31,828,764			15,663,537			30,549,230			15,513,252
	Subordinated units - basic and diluted	15,254,890			15,254,890			15,254,890			15,254,890
	Net income per limited partner unit (b):
	Common - basic	$	0.37		$	0.55		$	1.14		$	1.34
	Common - diluted	$	0.37		$	0.54		$	1.14		$	1.33
	Subordinated - basic and diluted	$	0.37		$	0.41		$	1.1		$	1.19
	____________
	(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 the Annual Report on Form 10-K for the year ended December 31, 2012 for further discussion related to IDRs.
	(b)	We base our calculation of net income per unit, including the allocation of distributions greater than earnings, on the weighted-average number of common and subordinated limited partner units outstanding during the period. Therefore, as a result of the January Offering and common units issued to Tesoro in the Carson Terminal Assets Acquisition, net income per common and subordinated limited partner units will not agree for the nine months ended September 30, 2013.

Property_Plant_and_Equipment_N

Property, Plant and Equipment (Notes)	9 Months Ended
	Sep. 30, 2013
Property, Plant and Equipment [Abstract]	'
Property, Plant and Equipment	'
	PROPERTY, PLANT AND EQUIPMENT
	Property, plant and equipment, at cost, is as follows (in thousands):
		September 30, 2013			December 31, 2012
	Crude Oil Gathering	$	156,706		$	116,744
	Terminalling, Transportation and Storage	1,020,136			254,381
	Gross Property, Plant and Equipment	1,176,842			371,125
	Accumulated depreciation	(115,397		)	(96,753		)
	Net Property, Plant and Equipment	$	1,061,445		$	274,372
	See Note B for more information regarding the property, plant and equipment balances acquired in the Carson Terminal Assets Acquisition and the Northwest Products System Acquisition.

Major_Customer_and_Concentrati

Major Customer and Concentrations of Credit Risk (Notes)	9 Months Ended
	Sep. 30, 2013
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 84% and 88% of our total revenues for the three and nine months ended September 30, 2013, respectively, and 89% and 90% of our total revenues for the three and nine months ended September 30, 2012, respectively. The revenues for each period are not comparable as no revenue was recorded by the Predecessors for transactions with Tesoro in the Terminalling, Transportation and Storage segment that were associated with the Acquisitions from Tesoro.

Debt_Notes

Debt (Notes)	9 Months Ended
	Sep. 30, 2013
Long-term Debt, Unclassified [Abstract]	'
Debt	'
	DEBT
	Our total debt at September 30, 2013 and December 31, 2012 was comprised of the following (in thousands):
	Debt, including current maturities:	September 30, 2013				December 31, 2012
	Revolving Credit Facility	$	—			$	—
	5.875% TLLP Senior Notes due 2020 (“Senior Notes due 2020”)	350,000				350,000
	6.125% TLLP Senior Notes due 2021 (“Senior Notes due 2021”)	550,000				—
	Capital lease obligations	8,808				4,032
	Total Debt	908,808				354,032
	Current maturities	(319		)		(110		)
	Debt, less current maturities	$	908,489			$	353,922
	Revolving Credit Facility. We amended the Revolving Credit Facility on both January 4, 2013 and May 22, 2013. As of September 30, 2013, our Revolving Credit Facility provided for total loan availability of $575.0 million, and we are allowed to request that the loan availability be increased up to an aggregate of $650.0 million, subject to receiving increased commitments from the lenders. The 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. Borrowings are available under the Revolving Credit Facility up to the total loan availability of the facility.
	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, or 99%, of the borrowing capacity as of September 30, 2013. The Revolving Credit Facility is scheduled to mature on December 31, 2017.
	The Revolving Credit Facility, at September 30, 2013, 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)
	TLLP Revolving Credit Facility (a)		0.18%		2.25%		3.25%		1.25%	0.38%
	____________
	(a) 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.
	Senior Notes due 2021. Effective August 1, 2013, the Partnership completed a private offering of $550.0 million aggregate principal amount of the Senior Notes due 2021.  The proceeds of this offering were used to repay the amounts outstanding under our Revolving Credit Facility, which amounts were used to fund a portion of the Carson Terminal Assets Acquisition, and to pay a portion of the fees and expenses related to the offering of the Senior Notes due 2021. The Senior Notes due 2021 have no sinking fund requirements.  We may redeem some or all of the Senior Notes due 2021, prior to October 15, 2016, at a make-whole price plus accrued and unpaid interest, if any. On or after October 15, 2016, the Senior Notes due 2021 may be redeemed at premiums equal to 104.594% through October 15, 2017; 103.063% from October 15, 2017 through October 15, 2018; 101.531% from October 15, 2018 through October 15, 2019; and at par thereafter, plus accrued and unpaid interest in all circumstances. We will have the right to redeem up to 35% of the aggregate principal amount at 106.125% percent of face value with proceeds from certain equity issuances through October 15, 2016. The Senior Notes due 2021 were subject to a registration rights agreement under which we agreed to exchange the notes for registered publicly-traded notes having substantially identical terms as the Senior Notes due 2021. The Senior Notes due 2021 also contain customary terms, events of default and covenants for an issuance of non-investment debt grade securities. The Senior Notes due 2021 are unsecured and guaranteed by all of our domestic subsidiaries, except Tesoro Logistics Finance Corp., the co-issuer of the Senior Notes due 2021, and are non-recourse to Tesoro, except for TLGP.
	Exchange Offer. On September 12, 2013, the Partnership completed an offer to exchange its existing unregistered Senior Notes due 2020 and Senior Notes due 2021 (the “Unregistered Notes”) for an equal principal amount of 5.875% Senior Notes due 2020 and 6.125% Senior Notes due 2021 (the “Exchange Notes”), respectively, that were registered under the Securities Act of 1933, as amended. The terms of the Exchange Notes are identical in all material respects (including principal amount, interest rate, maturity and redemption rights) to the Unregistered Notes for which they were exchanged, except that the Exchange Notes generally are not subject to transfer restrictions. The exchange offer fulfills all of the requirements of the registration rights agreements for the Unregistered Notes.
	Subsidiary Guarantors. The parent company of the Partnership has no independent assets or operations. The Partnership’s operations are conducted by its 100%-owned guarantor subsidiaries, other than Tesoro Logistics Finance Corp., an indirect 100%-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)	9 Months Ended
	Sep. 30, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	COMMITMENTS AND CONTINGENCIES
	Commitments
	As part of the Northwest Products System Acquisition, we were assigned a grant of easement for right-of-way with the Bureau of Indian Affairs, U.S. Department of Interior, that provides us a right-of-way for transmission of petroleum products over the lands of the Fort Hall Indian Reservation. The easement is valid for, and will be amortized over, a 20-year period beginning November 14, 2013 and terminating on November 13, 2033. The total cost for this grant of easement for right-of-way is $8.5 million, of which $4.5 million had been paid by Chevron prior to closing the Northwest Products System Acquisition and is recorded in other noncurrent assets in our condensed consolidated balance sheet as of September 30, 2013. The remaining future commitment of $4.0 million assumed by TLLP is payable annually in $1.0 million installments due each November through 2016.
	Indemnification
	Under the Amended Omnibus Agreement and the Carson Contribution, Conveyance and Assumption 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 Offering and the subsequent Acquisitions from Tesoro. Under the Amended Omnibus Agreement, with respect to assets that we acquired from Tesoro, excluding the Carson Terminal Assets, indemnification for unknown environmental and title liabilities is limited to pre-closing conditions identified prior to the earlier of the date that Tesoro no longer controls our general partner or five years after the date of closing. Tesoro retained responsibility for remediation of known environmental liabilities due to the use or operation of the Carson Terminal Assets prior to the acquisition, and has indemnified the Partnership for any losses incurred by the Partnership arising out of those remediation obligations. The indemnification for unknown Pre-Closing remediation liabilities is limited to five years. Indemnification of the Carson Terminal Assets environmental liabilities is not subject to a deductible.
	Under the Amended Omnibus Agreement, the aggregate annual deductible for each type of liability (unknown environmental liabilities or title matters) is $0.6 million, as of September 30, 2013, before we are entitled to indemnification in any calendar year in consideration of the initial assets and all subsequent acquisitions from Tesoro, with the exception of the Carson Terminal Assets Acquisition. In addition, with respect to the assets that we acquired from Tesoro, we have agreed to indemnify Tesoro for events and conditions associated with the ownership or operation of our assets that occur after the closing of the Initial Offering, and the subsequent acquisitions, and for environmental liabilities related to our assets to the extent Tesoro is not required to indemnify us for such liabilities. See Note C for additional information regarding the Amended Omnibus Agreement.
	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 certain of these matters if the amount is probable and can be reasonably estimated. Contingencies arising after the closing of the Initial Offering from conditions existing before the Initial Offering, and the subsequent acquisitions from Tesoro that have been identified after the closing of each transaction, will be recorded in accordance with the indemnification terms set forth in the Amended Omnibus Agreement. Any contingencies arising from events after the Initial Offering, and the subsequent acquisitions from Tesoro, will be the responsibility of TLLP.
	Environmental Obligations
	The Partnership is 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.
	On March 18, 2013, Chevron detected and responded to the Diesel Pipeline Release on the Northwest Products System. As a result of this release, the CAO was issued on March 22, 2013 by the Pipeline and Hazardous Materials Safety Administration of the U.S. Department of Transportation. 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, for a period of two years, Chevron has retained financial and operational responsibility to remediate the site of the Diesel Pipeline Release, 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 as of September 30, 2013 included $9.8 million related to the CAO, which is included in accrued environmental liabilities, and $4.7 million included in other noncurrent liabilities, the majority of which is unrelated to the CAO. Our environmental liabilities are based primarily on estimates using third-party assessments and available information to date. It is possible these estimates will change as additional information becomes available.
	In September 2013, the Partnership responded to a High Plains System crude oil pipeline release of approximately 20,000 barrels in a rural field northeast of Tioga, North Dakota (the “Crude Oil Pipeline Release”). The affected segment of the pipeline was temporarily shut down and the release was stopped. Repairs on the affected segment have been completed, and the pipeline was restarted following authorization from the Department of Transportation’s Pipeline and Hazardous Materials Safety Administration (“PHMSA”), and their issuance of a Safety Order. The Partnership recognized an estimated $3.6 million of environmental liabilities associated with the Crude Oil Pipeline Release, which is included in accrued environmental liabilities in our condensed consolidated balance sheet as of September 30, 2013. The related cost is included in operating and maintenance expense in our condensed statements of combined consolidated operations for the three and nine months ended September 30, 2013. Costs to comply with the Safety Order are not expected to have a material adverse effect on our financial condition, results of operations or liquidity. PHMSA is continuing its investigation of the incident.
	Other than described above, we did not have any other outstanding lawsuits, administrative proceedings or governmental investigations as of September 30, 2013.

Equity_Notes

Equity (Notes)	9 Months Ended
	Sep. 30, 2013
Equity [Abstract]	'
Equity	'
	EQUITY
	We had 28,993,092 common public units outstanding as of September 30, 2013. Additionally, Tesoro owned 2,729,476 of our common units, 15,254,890 of our subordinated units and 958,587 of our general partner units (the 2% general partner interest) as of September 30, 2013, which together constitutes a 40% ownership interest in us.
	The table below summarizes changes in the number of units outstanding from December 31, 2012 through September 30, 2013 (in units):
		Common			Subordinated			General Partner		Total
	Balance at December 31, 2012	20,495,254			15,254,890			729,596		36,479,740
	Equity offering (a)	9,775,000			—			199,490		9,974,490
	Unit-based compensation awards (b)	6,753			—			—		6,753
	Units issued for the Carson Terminal Assets Acquisition	1,445,561			—			29,501		1,475,062
	Balance at September 30, 2013	31,722,568			15,254,890			958,587		47,936,045
	_____________
	(a) As a result of the January Offering, we closed a registered public offering of 9,775,000 common units representing limited partner interests, at a public offering price of $41.70 per unit and received net proceeds of $391.6 million. In addition, TLGP contributed $8.3 million in exchange for 199,490 general partner units to maintain a 2% general partnership interest.
	(b) Unit-based compensation awards are presented net of 1,306 units withheld for taxes.
	The summarized changes in the carrying amount of our equity are as follows (in thousands):
		Partnership
		Common				Subordinated			General Partner				Total
	Balance at December 31, 2012	$	153,037			$	(144,162	)	$	(26,998	)		$	(18,123	)
	Allocation of net assets acquired by the unitholders	391,043				—			7,980				399,023
	Equity offering, net of issuance costs	397,169				(5,268		)	7,998				399,899
	Quarterly distributions	(45,334		)		(22,463		)	(5,215		)		(73,012		)
	Distributions to unitholders and general partner related to acquisitions	(533,120		)		—			(10,880		)		(544,000		)
	Net income attributable to partners	34,542				17,285			7,077				58,904
	Other	5,258				214			188				5,660
	Balance at September 30, 2013	$	402,595			$	(154,394	)	$	(19,850	)		$	228,351
	Issuance of Additional Securities. Our partnership agreement authorizes us to issue an unlimited number of additional partnership securities for consideration, and on the terms and conditions determined by our general partner, without the approval of the unitholders. Costs associated with the issuance of securities are allocated to all unitholders’ capital accounts based on their ownership interest at the time of issuance.
	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							Nine Months Ended
		September 30,							September 30,
		2013				2012			2013				2012
	Net income attributable to partners	$	21,053			$	15,578		$	58,904			$	40,219
	General partner’s IDRs	(3,206		)		(541		)	(6,019		)		(644		)
	Net income available to partners	$	17,847			$	15,037		$	52,885			$	39,575
	General partner’s ownership interest	2		%		2		%	2		%		2		%
	General partner’s allocated interest in net income	$	357			$	301		$	1,058			$	792
	General partner’s IDRs	3,206				541			6,019				644
	Total general partner’s interest in net income	$	3,563			$	842		$	7,077			$	1,436
	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.
	The table below summarizes the quarterly distributions related to our quarterly financial results:
	Quarter Ended		Total Quarterly Distribution Per Unit				Total Cash Distribution including general partner IDRs (in thousands)			Date of Distribution		Unitholders Record Date
	31-Dec-12		$	0.4725			$	22,911		February 14, 2013		February 4, 2013
	31-Mar-13		0.49				23,976			May 14, 2013		May 3, 2013
	30-Jun-13		0.51				26,108			14-Aug-13		2-Aug-13
	September 30, 2013 (c)		0.545				29,396			14-Nov-13		4-Nov-13
	_____________
	(c) This distribution was declared on October 24, 2013 and will be paid on the date of distribution.
	The allocation of total quarterly cash distributions to general and limited partners is as follows for the three and nine months ended September 30, 2013 and 2012 (in thousands). Our distributions are declared subsequent to quarter end; therefore, the table represents total cash distributions applicable to the period in which the distributions are earned.
		Three Months Ended							Nine Months Ended
		September 30,							September 30,
		2013				2012			2013				2012
	General partner’s distributions:
	General partner’s distributions	$	587			$	299		$	1,589			$	795
	General partner’s IDRs	3,206				541			6,019				644
	Total general partner’s distributions	3,793				840			7,608				1,439
	Limited partners’ distributions:
	Common	17,289				9,185			48,303				21,363
	Subordinated	8,314				6,941			23,569				18,954
	Total limited partners’ distributions	25,603				16,126			71,872				40,317
	Total Cash Distributions	$	29,396			$	16,966		$	79,480			$	41,756

EquityBased_Compensation_Notes

Equity-Based Compensation (Notes)	9 Months Ended
	Sep. 30, 2013
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 statements of combined consolidated operations was as follows (in thousands):
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2013		2012		2013		2012
	Performance phantom units	$	439	$	104	$	1,280	$	726
	Service phantom units	51		47		144		137
	Total Unit-Based Compensation Expense	$	490	$	151	$	1,424	$	863
	Performance Phantom Unit Awards. We granted 66,000 performance phantom unit awards at a grant date fair value of $42.70 in February 2013. The estimated fair value of these awards is amortized over a three-year vesting period using the straight-line method. Total unrecognized compensation cost related to our nonvested performance phantom units totaled $2.7 million as of September 30, 2013, which is expected to be recognized over a weighted-average period of 25 months.
	Service Phantom Unit Awards. We granted approximately 3,500 service phantom unit awards at a grant date fair value of $48.70 in February 2013. The estimated fair value of these awards is amortized over a one-year vesting period using the straight-line method. Total unrecognized compensation cost related to our nonvested service phantom units totaled $0.1 million as of September 30, 2013, which is expected to be recognized over a weighted-average period of 6 months.

Supplemental_Cash_Flow_Informa

Supplemental Cash Flow Information (Notes)	9 Months Ended
	Sep. 30, 2013
Supplemental Cash Flow Elements [Abstract]	'
Supplemental Cash Flow Information	'
	SUPPLEMENTAL CASH FLOW INFORMATION
	Supplemental disclosure of cash activities include interest paid, net of capitalized interest, of $13.2 million and $1.7 million for the nine months ended September 30, 2013 and 2012, respectively. Supplemental disclosure of non-cash activities is as follows (in thousands):
		Nine Months Ended
		September 30,
		2013		2012
	Assets received for deposit paid in prior period	$	40,000	$	—
	Capital expenditures included in accounts payable	11,938		10,623
	Capital lease obligations	5,026		—
	Working capital requirements retained by Sponsor	—		1,743

Segment_Disclosures_Notes

Segment Disclosures (Notes)	9 Months Ended
	Sep. 30, 2013
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, Transportation and Storage. The recently acquired operations of the Carson Terminal Assets and the Northwest Products System are reported in our Terminalling, Transportation and Storage segment. 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, Transportation and Storage segment consists of:
	•	the Northwest Products Pipeline;
	•	a jet fuel pipeline to the Salt Lake City International Airport;
	•	16 refined products and storage terminals in the western and midwestern U.S.;
	•	two storage facilities in Southern California and Salt Lake City, Utah;
	•	two marine terminals in California;
	•	a rail-car unloading facility in Washington; 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. The commercial agreements with Tesoro are described in Note C. 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						Nine Months Ended
		September 30,						September 30,
		2013			2012			2013			2012
	Capital Expenditures
	Crude Oil Gathering	$	17,261		$	4,219		$	36,130		$	13,168
	Terminalling, Transportation and Storage	4,081			21,518			17,691			62,130
	Total Capital Expenditures	$	21,342		$	25,737		$	53,821		$	75,298
	Identifiable assets by operating segment were as follows (in thousands):
	Identifiable Assets	September 30, 2013			December 31, 2012
	Crude Oil Gathering	$	124,696		$	87,194
	Terminalling, Transportation and Storage	992,881			205,246
	Other	88,075			70,738
	Total Identifiable Assets	$	1,205,652		$	363,178
	Segment information is as follows (in thousands):
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2013			2012			2013			2012
	REVENUES
	Crude Oil Gathering:
	Affiliate	$	23,332		$	20,724		$	65,238		$	50,662
	Third-party	544			123			1,274			360
	Total Crude Oil Gathering	23,876			20,847			66,512			51,022
	Terminalling, Transportation and Storage:
	Affiliate (a)	55,626			18,517			115,714			47,390
	Third-party	14,275			4,589			23,048			10,689
	Total Terminalling, Transportation and Storage	69,901			23,106			138,762			58,079
	Total Segment Revenues	$	93,777		$	43,953		$	205,274		$	109,101
	OPERATING AND MAINTENANCE EXPENSES
	Crude Oil Gathering	$	16,493		$	13,393		$	41,848		$	31,571
	Terminalling, Transportation and Storage	24,511			7,148			42,880			21,112
	Total Segment Operating and Maintenance Expenses	$	41,004		$	20,541		$	84,728		$	52,683
	IMBALANCE SETTLEMENT LOSSES (GAINS)
	Crude Oil Gathering (b)	$	806		$	(1,364	)	$	(2,118	)	$	(3,860	)
	Terminalling, Transportation and Storage	(1,965		)	(1,280		)	(4,041		)	(3,831		)
	Total Segment Imbalance Settlement Gains	$	(1,159	)	$	(2,644	)	$	(6,159	)	$	(7,691	)
	DEPRECIATION AND AMORTIZATION EXPENSES
	Crude Oil Gathering	$	1,026		$	916		$	3,061		$	2,482
	Terminalling, Transportation and Storage	12,002			2,517			20,386			6,641
	Total Segment Depreciation and Amortization Expenses	$	13,028		$	3,433		$	23,447		$	9,123
	GENERAL AND ADMINISTRATIVE EXPENSES
	Crude Oil Gathering	$	866		$	1,046		$	2,321		$	2,364
	Terminalling, Transportation and Storage	3,090			1,119			5,871			2,484
	Total Segment General and Administrative Expenses	$	3,956		$	2,165		$	8,192		$	4,848
	LOSS ON ASSET DISPOSALS
	Crude Oil Gathering	$	—		$	—		$	—		$	—
	Terminalling, Transportation and Storage	13			21			177			257
	Total Segment Loss on Asset Disposals	$	13		$	21		$	177		$	257
	OPERATING INCOME
	Crude Oil Gathering	$	4,685		$	6,856		$	21,400		$	18,465
	Terminalling, Transportation and Storage	32,250			13,581			73,489			31,416
	Total Segment Operating Income	36,935			20,437			94,889			49,881
Unallocated general and administrative expenses	(3,598		)	(2,086		)	(12,019		)	(6,710		)
Interest and financing costs, net	(12,284		)	(1,810		)	(24,459		)	(3,360		)
Interest income	—			—			493			—
NET INCOME	$	21,053		$	16,541		$	58,904		$	39,811
____________
(a)	Our Predecessors did not record revenue for transactions with Tesoro in the Terminalling, Transportation and Storage segment for assets acquired in the Acquisitions from Tesoro prior to the effective date of each acquisition.
(b) Imbalance settlement losses in the three months ended September 30, 2013 primarily relate to the Crude Oil Pipeline Release.

Organization_and_Basis_of_Pres1

Organization and Basis of Presentation (Policies)	9 Months Ended
	Sep. 30, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Basis of accounting, policy	'
	U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the periods presented.
Goodwill impairment testing, policy	'
	Goodwill represents the amount the purchase price exceeds the fair value of net assets acquired in a business combination. We do not amortize goodwill. We are required, however, to review goodwill for impairment annually, or more frequently if events or changes in business circumstances indicate the book value of the assets may not be recoverable. In such circumstances, we record the impairment in loss on asset disposals and impairments in our statement of combined consolidated operations. We review the carrying value of goodwill for impairment as of November 1st of each year, or sooner if events or changes in circumstances indicate the carrying amount of a reporting unit may exceed fair value.

Net_Income_Per_Unit_Policies

Net Income Per Unit (Policies)	9 Months Ended
	Sep. 30, 2013
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 attributable to the Partnership is allocated between the limited (both common and subordinated) and general partners in accordance with our partnership agreement.

Acquisitions_Tables

Acquisitions (Tables)	9 Months Ended
	Sep. 30, 2013
Business Combinations [Abstract]	'
Schedule of recognized identified assets acquired and liabilities assumed	'
	The following was recorded as of June 1, 2013, the date of the Carson Terminal Assets Acquisition (in thousands):
	Prepayments and other	$	208
	Property, plant and equipment	400,000
	Capital lease obligation	(1,185		)
	Preliminary value of Carson Terminal Assets	$	399,023
	The table below presents the preliminary acquisition date purchase price allocation (in thousands):
	Prepayments and other	$	53
	Property, plant and equipment	358,362
	Goodwill	8,738
	Other noncurrent assets	4,500
	Other current liabilities	(12,196		)
	Noncurrent liabilities	(4,700		)
	Total purchase price	$	354,757
Business acquisition, pro forma information	'
	The following unaudited pro forma condensed combined consolidated results of operations for the three and nine months ended September 30, 2013 and 2012 are presented as if the Northwest Products System Acquisition had been completed on January 1, 2012.
		Three Months Ended					Nine Months Ended
		September 30,					September 30,
		2013			2012		2013		2012
		(Dollars in thousands, except per unit amounts)
	Revenues	$	93,777		$	57,383	$	227,013	$	146,901
	Net income	21,053			20,388		63,744		48,890
	Net income attributable to partners	21,053			19,425		63,744		49,298
	Net income per limited partner unit:
	Common - basic	$	0.37		$	0.48	$	1.12	$	1.21
	Common - diluted	$	0.37		$	0.48	$	1.11	$	1.2
	Subordinated - basic and diluted	$	0.37		$	0.4	$	1.1	$	1.12
Schedule of business acquisitions, by acquisition	'
	The following amounts associated with the Carson Terminal Assets Acquisition and the Northwest Products System Acquisition, subsequent to each respective acquisition date, are included in our condensed statements of combined consolidated operations of TLLP (in thousands):
		Three Months Ended			Nine Months Ended
		30-Sep-13			30-Sep-13
	Carson Terminal Assets:
	Total operating revenues	$	23,391		$	30,571
	Net income attributable to partners	8,795			11,578
	Costs associated with the acquisition (a)	—			1,216
	Northwest Products System:
	Total operating revenues	13,563			15,278
	Net income attributable to partners	1,869			2,318
	Costs associated with the acquisition (a)	652			3,382
	____________
	(a)	Costs associated with the acquisitions, including costs to integrate the business, are included in the general and administrative expenses of TLLP in our condensed statements of combined consolidated operations.

RelatedParty_Transactions_Tabl

Related-Party Transactions (Tables)	9 Months Ended
	Sep. 30, 2013
Related Party Transactions [Abstract]	'
Schedule of related party transactions	'
	A summary of revenue and expense transactions with Tesoro, including expenses directly charged and allocated to our Predecessors, are as follows (in thousands):
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2013		2012		2013		2012
	Revenues	$	78,958	$	39,241	$	180,952	$	98,052
	Operating and maintenance expenses (a)	9,062		3,799		17,587		12,212
	General and administrative expenses	4,877		3,518		11,503		9,347
	____________
	(a)	Operating and maintenance expenses include imbalance settlement gains of $1.2 million and $2.6 million for the three months ended September 30, 2013 and 2012, respectively, and $6.2 million and $7.7 million for the nine months ended September 30, 2013 and 2012, respectively.

Net_Income_Per_Unit_Tables

Net Income Per Unit (Tables)	9 Months Ended
	Sep. 30, 2013
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						Nine Months Ended
		September 30,						September 30,
		2013			2012			2013			2012
	Net income attributable to partners	$	21,053		$	15,578		$	58,904		$	40,219
	General partner’s distributions (including IDRs) (a)	(3,793		)	(840		)	(7,608		)	(1,439		)
	Limited partners’ distributions on common units	(17,289		)	(9,185		)	(48,303		)	(21,363		)
	Limited partner’s distributions on subordinated units	(8,314		)	(6,941		)	(23,569		)	(18,954		)
	Distributions greater than earnings	$	(8,343	)	$	(1,388	)	$	(20,576	)	$	(1,537	)
	General partner’s earnings:
	Distributions (including IDRs) (a)	$	3,793		$	840		$	7,608		$	1,439
	Allocation of distributions greater than earnings	(167		)	(28		)	(411		)	(31		)
	Total general partner’s earnings	$	3,626		$	812		$	7,197		$	1,408
	Limited partners’ earnings on common units:
	Distributions	$	17,289		$	9,185		$	48,303		$	21,363
	Allocation of distributions greater than earnings	(5,521		)	(684		)	(13,436		)	(757		)
	Total limited partners’ earnings on common units	$	11,768		$	8,501		$	34,867		$	20,606
	Limited partner’s earnings on subordinated units:
	Distributions	$	8,314		$	6,941		$	23,569		$	18,954
	Allocation of distributions greater than earnings	(2,655		)	(676		)	(6,729		)	(749		)
	Total limited partner’s earnings on subordinated units	$	5,659		$	6,265		$	16,840		$	18,205
	Weighted average limited partner units outstanding:
	Common units - basic	31,722,523			15,553,113			30,456,062			15,424,700
	Common unit equivalents	106,241			110,424			93,168			88,552
	Common units - diluted	31,828,764			15,663,537			30,549,230			15,513,252
	Subordinated units - basic and diluted	15,254,890			15,254,890			15,254,890			15,254,890
	Net income per limited partner unit (b):
	Common - basic	$	0.37		$	0.55		$	1.14		$	1.34
	Common - diluted	$	0.37		$	0.54		$	1.14		$	1.33
	Subordinated - basic and diluted	$	0.37		$	0.41		$	1.1		$	1.19
	____________
	(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 the Annual Report on Form 10-K for the year ended December 31, 2012 for further discussion related to IDRs.
	(b)	We base our calculation of net income per unit, including the allocation of distributions greater than earnings, on the weighted-average number of common and subordinated limited partner units outstanding during the period. Therefore, as a result of the January Offering and common units issued to Tesoro in the Carson Terminal Assets Acquisition, net income per common and subordinated limited partner units will not agree for the nine months ended September 30, 2013.

Property_Plant_and_Equipment_T

Property, Plant and Equipment (Tables)	9 Months Ended
	Sep. 30, 2013
Property, Plant and Equipment [Abstract]	'
Property, plant and equipment	'
	Property, plant and equipment, at cost, is as follows (in thousands):
		September 30, 2013			December 31, 2012
	Crude Oil Gathering	$	156,706		$	116,744
	Terminalling, Transportation and Storage	1,020,136			254,381
	Gross Property, Plant and Equipment	1,176,842			371,125
	Accumulated depreciation	(115,397		)	(96,753		)
	Net Property, Plant and Equipment	$	1,061,445		$	274,372

Debt_Tables

Debt (Tables)	9 Months Ended
	Sep. 30, 2013
Long-term Debt, Unclassified [Abstract]	'
Schedule of debt	'
	Our total debt at September 30, 2013 and December 31, 2012 was comprised of the following (in thousands):
	Debt, including current maturities:	September 30, 2013				December 31, 2012
	Revolving Credit Facility	$	—			$	—
	5.875% TLLP Senior Notes due 2020 (“Senior Notes due 2020”)	350,000				350,000
	6.125% TLLP Senior Notes due 2021 (“Senior Notes due 2021”)	550,000				—
	Capital lease obligations	8,808				4,032
	Total Debt	908,808				354,032
	Current maturities	(319		)		(110		)
	Debt, less current maturities	$	908,489			$	353,922
Schedule of line of credit facilities	'
	The Revolving Credit Facility, at September 30, 2013, 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)
	TLLP Revolving Credit Facility (a)		0.18%		2.25%		3.25%		1.25%	0.38%
	____________
	(a) 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.

Equity_Tables

Equity (Tables)	9 Months Ended
	Sep. 30, 2013
Equity [Abstract]	'
Schedule of partners' capital	'
	The table below summarizes changes in the number of units outstanding from December 31, 2012 through September 30, 2013 (in units):
		Common			Subordinated			General Partner		Total
	Balance at December 31, 2012	20,495,254			15,254,890			729,596		36,479,740
	Equity offering (a)	9,775,000			—			199,490		9,974,490
	Unit-based compensation awards (b)	6,753			—			—		6,753
	Units issued for the Carson Terminal Assets Acquisition	1,445,561			—			29,501		1,475,062
	Balance at September 30, 2013	31,722,568			15,254,890			958,587		47,936,045
	_____________
	(a) As a result of the January Offering, we closed a registered public offering of 9,775,000 common units representing limited partner interests, at a public offering price of $41.70 per unit and received net proceeds of $391.6 million. In addition, TLGP contributed $8.3 million in exchange for 199,490 general partner units to maintain a 2% general partnership interest.
	(b) Unit-based compensation awards are presented net of 1,306 units withheld for taxes.
	The summarized changes in the carrying amount of our equity are as follows (in thousands):
		Partnership
		Common				Subordinated			General Partner				Total
	Balance at December 31, 2012	$	153,037			$	(144,162	)	$	(26,998	)		$	(18,123	)
	Allocation of net assets acquired by the unitholders	391,043				—			7,980				399,023
	Equity offering, net of issuance costs	397,169				(5,268		)	7,998				399,899
	Quarterly distributions	(45,334		)		(22,463		)	(5,215		)		(73,012		)
	Distributions to unitholders and general partner related to acquisitions	(533,120		)		—			(10,880		)		(544,000		)
	Net income attributable to partners	34,542				17,285			7,077				58,904
	Other	5,258				214			188				5,660
	Balance at September 30, 2013	$	402,595			$	(154,394	)	$	(19,850	)		$	228,351
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							Nine Months Ended
		September 30,							September 30,
		2013				2012			2013				2012
	Net income attributable to partners	$	21,053			$	15,578		$	58,904			$	40,219
	General partner’s IDRs	(3,206		)		(541		)	(6,019		)		(644		)
	Net income available to partners	$	17,847			$	15,037		$	52,885			$	39,575
	General partner’s ownership interest	2		%		2		%	2		%		2		%
	General partner’s allocated interest in net income	$	357			$	301		$	1,058			$	792
	General partner’s IDRs	3,206				541			6,019				644
	Total general partner’s interest in net income	$	3,563			$	842		$	7,077			$	1,436
Schedule of cash distributions	'
	The table below summarizes the quarterly distributions related to our quarterly financial results:
	Quarter Ended		Total Quarterly Distribution Per Unit				Total Cash Distribution including general partner IDRs (in thousands)			Date of Distribution		Unitholders Record Date
	31-Dec-12		$	0.4725			$	22,911		February 14, 2013		February 4, 2013
	31-Mar-13		0.49				23,976			May 14, 2013		May 3, 2013
	30-Jun-13		0.51				26,108			14-Aug-13		2-Aug-13
	September 30, 2013 (c)		0.545				29,396			14-Nov-13		4-Nov-13
	_____________
	(c) This distribution was declared on October 24, 2013 and will be paid on the date of distribution.
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 and nine months ended September 30, 2013 and 2012 (in thousands). Our distributions are declared subsequent to quarter end; therefore, the table represents total cash distributions applicable to the period in which the distributions are earned.
		Three Months Ended							Nine Months Ended
		September 30,							September 30,
		2013				2012			2013				2012
	General partner’s distributions:
	General partner’s distributions	$	587			$	299		$	1,589			$	795
	General partner’s IDRs	3,206				541			6,019				644
	Total general partner’s distributions	3,793				840			7,608				1,439
	Limited partners’ distributions:
	Common	17,289				9,185			48,303				21,363
	Subordinated	8,314				6,941			23,569				18,954
	Total limited partners’ distributions	25,603				16,126			71,872				40,317
	Total Cash Distributions	$	29,396			$	16,966		$	79,480			$	41,756

EquityBased_Compensation_Table

Equity-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Disclosure of unit-based compensation arrangements by unit-based payment award	'
	Unit-based compensation expense related to the Partnership that was included in our condensed statements of combined consolidated operations was as follows (in thousands):
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2013		2012		2013		2012
	Performance phantom units	$	439	$	104	$	1,280	$	726
	Service phantom units	51		47		144		137
	Total Unit-Based Compensation Expense	$	490	$	151	$	1,424	$	863

Supplemental_Cash_Flow_Informa1

Supplemental Cash Flow Information (Tables)	9 Months Ended
	Sep. 30, 2013
Supplemental Cash Flow Elements [Abstract]	'
Schedule of cash flow, supplemental disclosures	'
	Supplemental disclosure of non-cash activities is as follows (in thousands):
		Nine Months Ended
		September 30,
		2013		2012
	Assets received for deposit paid in prior period	$	40,000	$	—
	Capital expenditures included in accounts payable	11,938		10,623
	Capital lease obligations	5,026		—
	Working capital requirements retained by Sponsor	—		1,743

Segment_Disclosures_Tables

Segment Disclosures (Tables)	9 Months Ended
	Sep. 30, 2013
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]	'
Schedules of segment reporting information, by segment	'
	Capital expenditures by operating segment were as follows (in thousands):
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2013			2012			2013			2012
	Capital Expenditures
	Crude Oil Gathering	$	17,261		$	4,219		$	36,130		$	13,168
	Terminalling, Transportation and Storage	4,081			21,518			17,691			62,130
	Total Capital Expenditures	$	21,342		$	25,737		$	53,821		$	75,298
	Identifiable assets by operating segment were as follows (in thousands):
	Identifiable Assets	September 30, 2013			December 31, 2012
	Crude Oil Gathering	$	124,696		$	87,194
	Terminalling, Transportation and Storage	992,881			205,246
	Other	88,075			70,738
	Total Identifiable Assets	$	1,205,652		$	363,178
	Segment information is as follows (in thousands):
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2013			2012			2013			2012
	REVENUES
	Crude Oil Gathering:
	Affiliate	$	23,332		$	20,724		$	65,238		$	50,662
	Third-party	544			123			1,274			360
	Total Crude Oil Gathering	23,876			20,847			66,512			51,022
	Terminalling, Transportation and Storage:
	Affiliate (a)	55,626			18,517			115,714			47,390
	Third-party	14,275			4,589			23,048			10,689
	Total Terminalling, Transportation and Storage	69,901			23,106			138,762			58,079
	Total Segment Revenues	$	93,777		$	43,953		$	205,274		$	109,101
	OPERATING AND MAINTENANCE EXPENSES
	Crude Oil Gathering	$	16,493		$	13,393		$	41,848		$	31,571
	Terminalling, Transportation and Storage	24,511			7,148			42,880			21,112
	Total Segment Operating and Maintenance Expenses	$	41,004		$	20,541		$	84,728		$	52,683
	IMBALANCE SETTLEMENT LOSSES (GAINS)
	Crude Oil Gathering (b)	$	806		$	(1,364	)	$	(2,118	)	$	(3,860	)
	Terminalling, Transportation and Storage	(1,965		)	(1,280		)	(4,041		)	(3,831		)
	Total Segment Imbalance Settlement Gains	$	(1,159	)	$	(2,644	)	$	(6,159	)	$	(7,691	)
	DEPRECIATION AND AMORTIZATION EXPENSES
	Crude Oil Gathering	$	1,026		$	916		$	3,061		$	2,482
	Terminalling, Transportation and Storage	12,002			2,517			20,386			6,641
	Total Segment Depreciation and Amortization Expenses	$	13,028		$	3,433		$	23,447		$	9,123
	GENERAL AND ADMINISTRATIVE EXPENSES
	Crude Oil Gathering	$	866		$	1,046		$	2,321		$	2,364
	Terminalling, Transportation and Storage	3,090			1,119			5,871			2,484
	Total Segment General and Administrative Expenses	$	3,956		$	2,165		$	8,192		$	4,848
	LOSS ON ASSET DISPOSALS
	Crude Oil Gathering	$	—		$	—		$	—		$	—
	Terminalling, Transportation and Storage	13			21			177			257
	Total Segment Loss on Asset Disposals	$	13		$	21		$	177		$	257
	OPERATING INCOME
	Crude Oil Gathering	$	4,685		$	6,856		$	21,400		$	18,465
	Terminalling, Transportation and Storage	32,250			13,581			73,489			31,416
	Total Segment Operating Income	36,935			20,437			94,889			49,881
	Unallocated general and administrative expenses	(3,598		)	(2,086		)	(12,019		)	(6,710		)
	Interest and financing costs, net	(12,284		)	(1,810		)	(24,459		)	(3,360		)
	Interest income	—			—			493			—
	NET INCOME	$	21,053		$	16,541		$	58,904		$	39,811
	____________
	(a)	Our Predecessors did not record revenue for transactions with Tesoro in the Terminalling, Transportation and Storage segment for assets acquired in the Acquisitions from Tesoro prior to the effective date of each acquisition.
	(b) Imbalance settlement losses in the three months ended September 30, 2013 primarily relate to the Crude Oil Pipeline Release.

Organization_and_Basis_of_Pres2

Organization and Basis of Presentation, Narrative (Details)	9 Months Ended
	Sep. 30, 2013	Jun. 01, 2013
		terminals
Carson Terminal Assets	'	'
Acquisition	'	'
Effective date of acquisition	1-Jun-13	'
Number of assets (assets)	'	6
Northwest Products System	'	'
Acquisition	'	'
Effective date of acquisition	19-Jun-13	'
Martinez Marine Terminal Acquisition	'	'
Acquisition	'	'
Effective date of acquisition	1-Apr-12	'
Long Beach Assets Acquisition	'	'
Acquisition	'	'
Effective date of acquisition	14-Sep-12	'
Anacortes Rail Facility	'	'
Acquisition	'	'
Effective date of acquisition	15-Nov-12	'

Organization_and_Basis_of_Pres3

Organization and Basis of Presentation, Fair Value (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013	Dec. 31, 2012
		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	0.00%	'	'	'	'
Percent of trade receivables outstanding	0.00%	'	'	'	'
Total debt	'	$908.80	$354	$916.50	$368.70

Acquisitions_Carson_Terminal_A

Acquisitions, Carson Terminal Assets (Details) (USD $)	0 Months Ended		9 Months Ended	0 Months Ended
	Apr. 26, 2011	Jun. 01, 2013	Sep. 30, 2013	Jun. 01, 2013	Jun. 01, 2013
		Carson Terminal Assets	Carson Terminal Assets	Carson Terminal Assets	Carson Terminal Assets
				Common	General Partner
Acquisition, Description	'	'	'	'	'
Effective date of acquisition	'	'	1-Jun-13	'	'
Purchase price	'	$640,000,000	'	'	'
Cash consideration	'	544,000,000	'	'	'
Equity consideration, value	'	96,000,000	'	'	'
Equity consideration, number of units (units)	'	'	'	1,445,561	29,501
Years to identify conditions for indemnification (years)	'5 years	'5 years	'	'	'
Acquisition, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net	'	'	'	'	'
Prepayments and other	'	'	208,000	'	'
Property, plant and equipment	'	400,000,000	400,000,000	'	'
Capital lease obligation	'	'	-1,185,000	'	'
Preliminary value of Carson Terminal Assets	'	'	$399,023,000	'	'
Business Acquisition, Pro Forma Information	'	'	'	'	'
Carson acquisition pro forma disclosure impracticality	'	'	'We have not provided disclosure of pro forma revenues and earnings as if the Carson Terminal Assets had been operating as part of our operations during all periods presented in these financial statements. BP managed and operated the Carson Terminal Assets as part of its refining operations and historical U.S. GAAP financial information specific to the Carson Terminal Assets is not available. As a result, preparing pro forma information was determined to be impracticable.	'	'

Acquisitions_Northwest_Product

Acquisitions, Northwest Products System (Details) (USD $)	9 Months Ended			0 Months Ended	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012	Jun. 19, 2013	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Jun. 19, 2013	Sep. 30, 2013
				Northwest Products System	Northwest Products System	Northwest Products System	Northwest Products System	Northwest Products System	Diesel pipeline release liability	Diesel pipeline release liability	Other environmental liabilities
									Northwest Products System	Northwest Products System	Northwest Products System
Acquisition, Description	'	'	'	'	'	'	'	'	'	'	'
Effective date of acquisition	'	'	'	'	'	'	19-Jun-13	'	'	'	'
Purchase price	'	'	'	$354,800,000	'	'	'	'	'	'	'
Deposit	544,000,000	256,500,000	'	40,000,000	'	'	'	'	'	'	'
Chevron environmental remediation indemnification period (years)	'	'	'	'2 years	'	'	'	'	'	'	'
Divestiture agreement term (months)	'	'	'	'6 months	'	'	'	'	'	'	'
Acquisition, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	'	'	'	'	'	'	'	'	'	'	'
Prepayments and other	'	'	'	'	53,000	'	53,000	'	'	'	'
Property, plant and equipment	'	'	'	'	358,362,000	'	358,362,000	'	'	'	'
Goodwill	8,738,000	'	0	'	8,738,000	'	8,738,000	'	'	'	'
Other noncurrent assets	'	'	'	'	4,500,000	'	4,500,000	'	'	'	'
Other current liabilities	'	'	'	'	-12,196,000	'	-12,196,000	'	'	'	'
Noncurrent liabilities	'	'	'	'	-4,700,000	'	-4,700,000	'	'	'	'
Total purchase price	'	'	'	'	354,757,000	'	354,757,000	'	'	'	'
Environmental liability accrual	'	'	'	16,600,000	'	'	'	'	'	'	'
Accrued environmental liabilities, current	13,428,000	'	0	'	'	'	'	'	9,800,000	11,900,000	'
Accrued environmental liabilities, noncurrent	'	'	'	'	'	'	'	'	'	'	4,700,000
Business Acquisition, Pro Forma Information	'	'	'	'	'	'	'	'	'	'	'
Revenues	'	'	'	'	93,777,000	57,383,000	227,013,000	146,901,000	'	'	'
Net income	'	'	'	'	21,053,000	20,388,000	63,744,000	48,890,000	'	'	'
Net income attributable to partners	'	'	'	'	$21,053,000	$19,425,000	$63,744,000	$49,298,000	'	'	'
Common - basic	'	'	'	'	$0.37	$0.48	$1.12	$1.21	'	'	'
Common - diluted	'	'	'	'	$0.37	$0.48	$1.11	$1.20	'	'	'
Subordinated - basic and diluted	'	'	'	'	$0.37	$0.40	$1.10	$1.12	'	'	'

Acquisitions_PostAcquisition_F

Acquisitions, Post-Acquisition Financial Information (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013		Sep. 30, 2013
Carson Terminal Assets	'		'
Acquisition	'		'
Total operating revenues	$23,391		$30,571
Net income attributable to partners	8,795		11,578
Costs associated with the acquisition (a)	0	[1]	1,216	[1]
Northwest Products System	'		'
Acquisition	'		'
Total operating revenues	13,563		15,278
Net income attributable to partners	1,869		2,318
Costs associated with the acquisition (a)	$652	[1]	$3,382	[1]
[1]	Costs associated with the acquisitions, including costs to integrate the business, are included in the general and administrative expenses of TLLP in our condensed statements of combined consolidated operations.

RelatedParty_Transactions_Agre

Related-Party Transactions, Agreements (Details) (USD $)	0 Months Ended		3 Months Ended	9 Months Ended
In Millions, unless otherwise specified	Jun. 01, 2013	3-May-13	Mar. 31, 2013	Sep. 30, 2013	Dec. 31, 2012
Related Party Transactions [Abstract]	'	'	'	'	'
Length of time to apply shortfall payments (months)	'	'	'	'3 months	'
Deferred revenue related to shortfall billings	'	'	'	$0.10	$0.30
Related Party Transactions	'	'	'	'	'
Master Terminalling Services Agreement minimum throughput adjustment (barrels per day)	'	8,400	'	'	'
Omnibus agreement annual fee	4	'	2.5	'	'
Operational services agreement annual fee	$3.50	'	$1.60	'	'
Master Terminalling and Services Agreement - Southern California	'	'	'	'	'
Related Party Transactions	'	'	'	'	'
Term (years)	'10 years	'	'	'	'
Renewals, number (options)	2	'	'	'	'
Renewals, term (years)	'5 years	'	'	'	'
Carson Storage Services Agreement	'	'	'	'	'
Related Party Transactions	'	'	'	'	'
Term (years)	'10 years	'	'	'	'
Renewals, number (options)	2	'	'	'	'
Renewals, term (years)	'5 years	'	'	'	'

RelatedParty_Transactions_Summ

Related-Party Transactions, Summary of Transactions (Details) (USD $)

3 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Oct. 24, 2013

Sep. 30, 2013

Cash distribution

Cash distribution

Related Party Transactions

'

'

'

'

'

'

'

'

'

Revenues

$78,958,000

'

'

'

$39,241,000

$180,952,000

$98,052,000

'

'

Operating and maintenance expenses (a)

9,062,000

[1]

'

'

'

3,799,000

[1]

17,587,000

[1]

12,212,000

[1]

'

'

General and administrative expenses

4,877,000

'

'

'

3,518,000

11,503,000

9,347,000

'

'

Imbalance settlement gains

1,159,000

'

'

'

2,644,000

6,159,000

7,691,000

'

'

Cash distributions paid to Tesoro

'

'

'

'

'

30,300,000

'

'

'

Declaration date

'

'

'

'

'

'

'

'

24-Oct-13

Quarterly cash distribution declared, per unit (dollars per unit)

$0.55

'

'

'

$0.46

$1.54

$1.24

$0.55

'

Date of distribution

'

14-Aug-13

[2]

14-May-13

14-Feb-13

'

'

'

'

14-Nov-13

Cash distribution declared to Tesoro

$25,603,000

'

'

'

$16,126,000

$71,872,000

$40,317,000

$13,600,000

'

[1]

Operating and maintenance expenses include imbalance settlement gains of $1.2 million and $2.6 million for the three months ended SeptemberB 30, 2013 and 2012, respectively, and $6.2 million and $7.7 million for the nine months ended SeptemberB 30, 2013 and 2012, respectively.

[2]

This distribution was declared on October 24, 2013 and will be paid on the date of distribution.

Net_Income_Per_Unit_Details

Net Income Per Unit (Details) (USD $)	0 Months Ended	3 Months Ended				9 Months Ended
In Thousands, except Share data, unless otherwise specified	Jan. 14, 2013	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Net Income Per Unit	'	'		'		'		'
Net income attributable to partners	'	$21,053		$15,578		$58,904		$40,219
Limited partners' distributions	'	-25,603		-16,126		-71,872		-40,317
Allocation of distributions greater than earnings	'	8,343		1,388		20,576		1,537
Common units - basic (units)	'	31,722,523		15,553,113		30,456,062		15,424,700
Common unit equivalents (units)	'	106,241		110,424		93,168		88,552
Common units - diluted (units)	'	31,828,764		15,663,537		30,549,230		15,513,252
Subordinated units - basic and diluted (units)	'	15,254,890		15,254,890		15,254,890		15,254,890
Common - basic (dollars per unit)	'	$0.37	[1]	$0.55	[1]	$1.14	[1]	$1.34	[1]
Common - diluted (dollars per unit)	'	$0.37	[1]	$0.54	[1]	$1.14	[1]	$1.33	[1]
Subordinated - basic and diluted (dollars per unit)	'	$0.37	[1]	$0.41	[1]	$1.10	[1]	$1.19	[1]
Footnote	'	'		'		'		'
General partnerbs ownership interest	'	'		'		2.00%		'
Maximum percentage distribution to general partner	'	'		'		50.00%		'
Minimum distribution level for IDRs (dollars per unit)	'	'		'		$0.39		'
General partner	'	'		'		'		'
Net Income Per Unit	'	'		'		'		'
Net income attributable to partners	'	'		'		7,077		'
General partner's distributions	'	-3,793	[2]	-840	[2]	-7,608	[2]	-1,439	[2]
Allocation of distributions greater than earnings	'	-167		-28		-411		-31
Total partner's earnings	'	3,626		812		7,197		1,408
Footnote	'	'		'		'		'
General partnerbs ownership interest	2.00%	2.00%		2.00%		2.00%		2.00%
Limited Partner, common units	'	'		'		'		'
Net Income Per Unit	'	'		'		'		'
Net income attributable to partners	'	'		'		34,542		'
Limited partners' distributions	'	-17,289		-9,185		-48,303		-21,363
Allocation of distributions greater than earnings	'	-5,521		-684		-13,436		-757
Total partner's earnings	'	11,768		8,501		34,867		20,606
Limited Partner, subordinated units	'	'		'		'		'
Net Income Per Unit	'	'		'		'		'
Net income attributable to partners	'	'		'		17,285		'
Limited partners' distributions	'	-8,314		-6,941		-23,569		-18,954
Allocation of distributions greater than earnings	'	-2,655		-676		-6,729		-749
Total partner's earnings	'	$5,659		$6,265		$16,840		$18,205
[1]	We base our calculation of net income per unit, including the allocation of distributions greater than earnings, on the weighted-average number of common and subordinated limited partner units outstanding during the period. Therefore, as a result of the January Offering and common units issued to Tesoro in the Carson Terminal Assets Acquisition, net income per common and subordinated limited partner units will not agree for the nine months ended SeptemberB 30, 2013.
[2]	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 the Annual Report on Form 10-K for the year ended DecemberB 31, 2012 for further discussion related to IDRs.

Property_Plant_and_Equipment_D

Property, Plant and Equipment (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Property, Plant and Equipment	'	'
Gross Property, Plant and Equipment	$1,176,842	$371,125
Accumulated depreciation	-115,397	-96,753
Net Property, Plant and Equipment	1,061,445	274,372
Crude Oil Gathering	'	'
Property, Plant and Equipment	'	'
Gross Property, Plant and Equipment	156,706	116,744
Terminalling, Transportation and Storage	'	'
Property, Plant and Equipment	'	'
Gross Property, Plant and Equipment	$1,020,136	$254,381

Major_Customer_and_Concentrati1

Major Customer and Concentrations of Credit Risk (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Major Customer and Concentrations of Credit Risk [Abstract]	'	'	'	'
Concentration risk, percentage	84.00%	89.00%	88.00%	90.00%

Debt_Total_Details

Debt, Total (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Debt Instrument	'	'
Revolving Credit Facility	$0	$0
Capital lease obligations	8,808	4,032
Total Debt	908,808	354,032
Current maturities	-319	-110
Debt, less current maturities	908,489	353,922
5.875% TLLP Senior Notes due 2020 (bSenior Notes due 2020b)	'	'
Debt Instrument	'	'
TLLP Senior Notes	350,000	350,000
6.125% TLLP Senior Notes due 2021 (bSenior Notes due 2021b)	'	'
Debt Instrument	'	'
TLLP Senior Notes	$550,000	$0

Debt_Revolving_Credit_Facility

Debt, Revolving Credit Facility (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013		Sep. 30, 2013		Sep. 30, 2013
			Revolving Credit Facility		Revolving Credit Facility		Revolving Credit Facility
					Eurodollar		Base Rate
Line of Credit Facility	'	'	'		'		'
Total loan availability	'	'	$575,000,000		'		'
Maximum loan availability	'	'	650,000,000		'		'
Borrowing capacity, description	'	'	' Borrowings are available under the Revolving Credit Facility up to the total loan availability of the facility.		'		'
Revolving Credit Facility, collateral	'	'	'The 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.		'		'
Borrowings under Revolving Credit Facility	0	0	'		'		'
Letters of credit, amount outstanding	'	'	300,000		'		'
Unused loan availability	'	'	$574,700,000		'		'
Remaining percentage of eligible borrowing base	'	'	99.00%		'		'
Revolver maturity date	'	'	31-Dec-17		'		'
Eurodollar or Base Rate	'	'	'		0.18%	[1]	3.25%	[1]
Eurodollar or Base Rate Margin	'	'	'		2.25%	[1]	1.25%	[1]
Commitment Fee (unused portion)	'	'	0.38%	[1]	'		'
[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.

Debt_Senior_Notes_Details

Debt, Senior Notes (Details) (6.125% TLLP Senior Notes due 2021 (bSenior Notes due 2021b), USD $)	0 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 12, 2013	Aug. 01, 2013	Sep. 30, 2013
Debt Instrument	'	'	'
Maturity date	15-Oct-21	15-Oct-21	'
Aggregate principal amount	'	$550	'
6.125% Senior Notes due 2021, collateral	'	'	'The Senior Notes due 2021 are unsecured and guaranteed by all of our domestic subsidiaries, except Tesoro Logistics Finance Corp., the co-issuer of the Senior Notes due 2021, and are non-recourse to Tesoro, except for TLGP.
On or after October 15, 2016 through October 15, 2017	'	'	'
Debt Instrument	'	'	'
Redemption premium, percentage of face value	'	104.59%	'
October 15, 2017 through October 15, 2018	'	'	'
Debt Instrument	'	'	'
Redemption premium, percentage of face value	'	103.06%	'
October 15, 2018 through October 15, 2019	'	'	'
Debt Instrument	'	'	'
Redemption premium, percentage of face value	'	101.53%	'
Up through October 15, 2016	'	'	'
Debt Instrument	'	'	'
Redemption price, percentage of principal amount	'	35.00%	'
Redemption premium, percentage of face value	'	106.13%	'

Debt_Debt_Exchange_Offer_Detai

Debt Debt, Exchange Offer (Details)	9 Months Ended		0 Months Ended
	Sep. 30, 2013	Sep. 30, 2013	Sep. 12, 2013	Sep. 12, 2013	Aug. 01, 2013
	Guarantor Subsidiaries	Tesoro Logistics Finance Corp.	5.875% TLLP Senior Notes due 2020 (bSenior Notes due 2020b)	6.125% TLLP Senior Notes due 2021 (bSenior Notes due 2021b)	6.125% TLLP Senior Notes due 2021 (bSenior Notes due 2021b)
Debt Instrument	'	'	'	'	'
Maturity date	'	'	1-Oct-20	15-Oct-21	15-Oct-21
Debt interest rate	'	'	5.88%	6.13%	'
Ownership interest	100.00%	100.00%	'	'	'

Commitments_and_Contingencies_1

Commitments and Contingencies, Commitments and Indemnification (Details) (USD $)	0 Months Ended			0 Months Ended
	Jun. 19, 2013	Apr. 26, 2011	Sep. 30, 2013	Apr. 02, 2012	Sep. 14, 2012	Nov. 15, 2012	Jun. 01, 2013
				Martinez Marine Terminal Acquisition	Long Beach Assets Acquisition	Anacortes Rail Facility	Carson Terminal Assets
Acquisition	'	'	'	'	'	'	'
Right-of-way agreement term (years)	'20-year period	'	'	'	'	'	'
Right-of-way agreement, total amount	$8,500,000	'	'	'	'	'	'
Right-of-way prepayment received from Chevron acquisition	4,500,000	'	'	'	'	'	'
Remaining Chevron right-of-way obligation	4,000,000	'	'	'	'	'	'
Annual right-of-way installment due 2013	1,000,000	'	'	'	'	'	'
Annual right-of-way installment due 2014	1,000,000	'	'	'	'	'	'
Annual right-of-way installment due 2015	1,000,000	'	'	'	'	'	'
Annual right-of-way installment due 2016	1,000,000	'	'	'	'	'	'
Years to identify conditions for indemnification (years)	'	'5 years	'	'5 years	'5 years	'5 years	'5 years
Aggregate annual deductible	'	'	$600,000	'	'	'	'

Commitments_and_Contingencies_2

Commitments and Contingencies Commitments and Contingencies, Environmental Obligations (Details) (USD $)	9 Months Ended		1 Months Ended	0 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013	Jun. 19, 2013	Sep. 30, 2013	Jun. 19, 2013	Sep. 30, 2013
			Crude oil pipeline release	Northwest Products System	Northwest Products System	Northwest Products System	Northwest Products System
			bbl		Diesel pipeline release liability	Diesel pipeline release liability	Other environmental liabilities
Site Contingency	'	'	'	'	'	'	'
Chevron environmental remediation indemnification period (years)	'	'	'	'2 years	'	'	'
Accrued environmental liabilities, current	$13,428,000	$0	$3,600,000	'	$9,800,000	$11,900,000	'
Accrued environmental liabilities, noncurrent	'	'	'	'	'	'	$4,700,000
Barrels of oil released (barrels)	'	'	20,000	'	'	'	'
Accrual assumptions	' Our environmental liabilities are based primarily on estimates using third-party assessments and available information to date. It is possible these estimates will change as additional information becomes available.	'	'	'	'	'	'

Equity_Units_Rollforward_Detai

Equity, Units Rollforward (Details) (USD $)

9 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

9 Months Ended

0 Months Ended

3 Months Ended

9 Months Ended

In Millions, except Share data, unless otherwise specified

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Jan. 14, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Jan. 14, 2013

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Tesoro

Common

Common

Public common units

Tesoro common units

Subordinated

General Partner

General Partner

General Partner

General Partner

General Partner

Common units outstanding (units)

31,722,568

20,495,254

'

'

'

28,993,092

2,729,476

'

'

'

'

'

'

Subordinated units outstanding (units)

15,254,890

15,254,890

'

'

'

'

'

15,254,890

'

'

'

'

'

General partner units outstanding (units)

958,587

729,596

'

'

'

'

'

'

'

958,587

'

958,587

'

General partnerbs ownership interest

2.00%

'

'

'

'

'

'

'

2.00%

2.00%

2.00%

2.00%

2.00%

Tesoro's ownership interest

'

'

40.00%

'

'

'

'

'

'

'

'

'

'

Increase (Decrease) In Partners' Capital, Units

'

'

'

'

'

'

'

'

'

'

'

'

'

Balance at December 31, 2012

36,479,740

'

'

'

20,495,254

'

'

15,254,890

'

'

'

729,596

'

Equity offering (a)

9,974,490

[1]

'

'

9,775,000

9,775,000

[1]

'

'

0

[1]

'

'

'

199,490

[1]

'

Unit-based compensation awards (b)

6,753

[2]

'

'

'

6,753

[2]

'

'

0

[2]

'

'

'

0

[2]

'

Units issued for the Carson Terminal Assets Acquisition

1,475,062

'

'

'

1,445,561

'

'

0

'

'

'

29,501

'

Balance at September 30, 2013

47,936,045

'

'

'

31,722,568

'

'

15,254,890

'

958,587

'

958,587

'

Price per unit issued in January Offering (dollars per unit)

'

'

'

$41.70

'

'

'

'

'

'

'

'

'

Net proceeds from issuance of units in January Offering

'

'

'

$391.60

'

'

'

'

'

'

'

'

'

Amount contributed in exchange for general partner units in January Offering

'

'

'

'

'

'

'

'

$8.30

'

'

'

'

General partner units issued in January Offering (units)

958,587

729,596

'

'

'

'

'

'

199,490

'

'

'

'

Equity-based compensation units withheld for taxes (units)

'

'

'

'

1,306

'

'

'

'

'

'

'

'

[1]

As a result of the January Offering, we closed a registered public offering of 9,775,000 common units representing limited partner interests, at a public offering price of $41.70 per unit and received net proceeds of $391.6 million. In addition, TLGP contributed $8.3 million in exchange for 199,490 general partner units to maintain a 2% general partnership interest.

[2]

Unit-based compensation awards are presented net of 1,306 units withheld for taxes.

Equity_Equity_Activity_Details

Equity, Equity Activity (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Increase (Decrease) in Partners' Capital	'	'	'	'
Balance at December 31, 2012	'	'	($18,123)	'
Allocation of net assets acquired by the unitholders	'	'	399,023	'
Equity offering, net of issuance costs	'	'	399,899	'
Quarterly distributions	'	'	-73,012	'
Distributions to unitholders and general partner related to acquisitions	'	'	-544,000	'
Net income attributable to partners	21,053	15,578	58,904	40,219
Other	'	'	5,660	'
Balance at September 30, 2013	228,351	'	228,351	'
Common	'	'	'	'
Increase (Decrease) in Partners' Capital	'	'	'	'
Balance at December 31, 2012	'	'	153,037	'
Allocation of net assets acquired by the unitholders	'	'	391,043	'
Equity offering, net of issuance costs	'	'	397,169	'
Quarterly distributions	'	'	-45,334	'
Distributions to unitholders and general partner related to acquisitions	'	'	-533,120	'
Net income attributable to partners	'	'	34,542	'
Other	'	'	5,258	'
Balance at September 30, 2013	402,595	'	402,595	'
Subordinated	'	'	'	'
Increase (Decrease) in Partners' Capital	'	'	'	'
Balance at December 31, 2012	'	'	-144,162	'
Allocation of net assets acquired by the unitholders	'	'	0	'
Equity offering, net of issuance costs	'	'	-5,268	'
Quarterly distributions	'	'	-22,463	'
Distributions to unitholders and general partner related to acquisitions	'	'	0	'
Net income attributable to partners	'	'	17,285	'
Other	'	'	214	'
Balance at September 30, 2013	-154,394	'	-154,394	'
General partner	'	'	'	'
Increase (Decrease) in Partners' Capital	'	'	'	'
Balance at December 31, 2012	'	'	-26,998	'
Allocation of net assets acquired by the unitholders	'	'	7,980	'
Equity offering, net of issuance costs	'	'	7,998	'
Quarterly distributions	'	'	-5,215	'
Distributions to unitholders and general partner related to acquisitions	'	'	-10,880	'
Net income attributable to partners	'	'	7,077	'
Other	'	'	188	'
Balance at September 30, 2013	($19,850)	'	($19,850)	'

Equity_Allocations_of_Net_Inco

Equity, Allocations of Net Income (Details) (USD $)	0 Months Ended	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Jan. 14, 2013	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Net income attributable to partners	'	$21,053	$15,578	$58,904	$40,219
General partnerbs ownership interest	'	'	'	2.00%	'
Total general partnerbs interest in net income	'	-3,563	-842	-7,077	-1,436
General Partner	'	'	'	'	'
Incentive cash distribution allocation	'	100.00%	'	100.00%	'
Net income attributable to partners	'	'	'	7,077	'
General partnerbs IDRs	'	-3,206	-541	-6,019	-644
Net income available to partners	'	17,847	15,037	52,885	39,575
General partnerbs ownership interest	2.00%	2.00%	2.00%	2.00%	2.00%
General partnerbs allocated interest in net income	'	357	301	1,058	792
Total general partnerbs interest in net income	'	$3,563	$842	$7,077	$1,436

Equity_Cash_Distributions_Deta

Equity, Cash Distributions (Details) (USD $)	3 Months Ended						9 Months Ended		0 Months Ended	9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2013	Jun. 30, 2013		Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Oct. 24, 2013	Sep. 30, 2013
									Cash distribution	Cash distribution
Distribution Made to Member or Limited Partner	'	'		'	'	'	'	'	'	'
Total Quarterly Distribution Per Unit paid (dollars per unit)	'	$0.51		$0.49	$0.47	'	'	'	'	'
Total Quarterly Distribution Per Unit declared (dollars per unit)	$0.55	'		'	'	$0.46	$1.54	$1.24	$0.55	'
Total Cash Distribution including general partner IDRs paid	'	$26,108		$23,976	$22,911	'	'	'	'	'
Total Cash Distribution including general partner IDRs declared	$29,396	'		'	'	$16,966	$79,480	$41,756	$29,396	'
Date of Distribution	'	14-Aug-13	[1]	14-May-13	14-Feb-13	'	'	'	'	14-Nov-13
Unitholders Record Date	'	2-Aug-13	[1]	3-May-13	4-Feb-13	'	'	'	'	4-Nov-13
Declaration date	'	'		'	'	'	'	'	'	24-Oct-13
[1]	This distribution was declared on October 24, 2013 and will be paid on the date of distribution.

Equity_Distributions_Earned_De

Equity, Distributions Earned (Details) (USD $)	3 Months Ended				9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Distributions Earned by Limited or General Partners	'		'		'		'
Total limited partnersb distributions	$25,603		$16,126		$71,872		$40,317
Total Cash Distributions	29,396		16,966		79,480		41,756
General partner	'		'		'		'
Distributions Earned by Limited or General Partners	'		'		'		'
General partnerbs distributions	587	[1]	299	[1]	1,589	[1]	795	[1]
General partnerbs IDRs	3,206		541		6,019		644
Total general partnerbs distributions	3,793	[1]	840	[1]	7,608	[1]	1,439	[1]
Common	'		'		'		'
Distributions Earned by Limited or General Partners	'		'		'		'
Total limited partnersb distributions	17,289		9,185		48,303		21,363
Subordinated	'		'		'		'
Distributions Earned by Limited or General Partners	'		'		'		'
Total limited partnersb distributions	$8,314		$6,941		$23,569		$18,954
[1]	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 the Annual Report on Form 10-K for the year ended DecemberB 31, 2012 for further discussion related to IDRs.

EquityBased_Compensation_Detai

Equity-Based Compensation (Details) (USD $)	1 Months Ended	3 Months Ended		9 Months Ended
	Feb. 28, 2013	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Share-based Compensation Arrangement by Share-based Payment Award	'	'	'	'	'
Total Unit-Based Compensation Expense	'	$490,000	$151,000	$1,424,000	$863,000
Performance phantom units	'	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award	'	'	'	'	'
Total Unit-Based Compensation Expense	'	439,000	104,000	1,280,000	726,000
Additional Disclosures	'	'	'	'	'
Awards granted (units)	66,000	'	'	'	'
Grant date fair value (dollars per unit)	$42.70	'	'	'	'
Vesting period (years)	'3 years	'	'	'	'
Total unrecognized compensation cost	'	2,700,000	'	2,700,000	'
Weighted-average period of recognition (months)	'	'	'	'25 months	'
Service phantom units	'	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award	'	'	'	'	'
Total Unit-Based Compensation Expense	'	51,000	47,000	144,000	137,000
Additional Disclosures	'	'	'	'	'
Awards granted (units)	3,500	'	'	'	'
Grant date fair value (dollars per unit)	$48.70	'	'	'	'
Vesting period (years)	'1 year	'	'	'	'
Total unrecognized compensation cost	'	$100,000	'	$100,000	'
Weighted-average period of recognition (months)	'	'	'	'6 months	'

Supplemental_Cash_Flow_Informa2

Supplemental Cash Flow Information (Details) (USD $)	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Supplemental Cash Flow Elements [Abstract]	'	'
Interest paid, net of capitalized interest	$13,200,000	$1,700,000
Assets received for deposit paid in prior period	40,000,000	0
Capital expenditures included in accounts payable	11,938,000	10,623,000
Capital lease obligations	5,026,000	0
Working capital requirements retained by Sponsor	$0	$1,743,000

Segment_Disclosures_Narrative_

Segment Disclosures, Narrative Information (Details)	9 Months Ended
	Sep. 30, 2013
	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
Northwest Products Pipeline	'
Segment Reporting Information	'
Number of assets (assets)	1
Jet fuel pipeline	'
Segment Reporting Information	'
Number of assets (assets)	1
Refined products terminals	'
Segment Reporting Information	'
Number of assets (assets)	16
Storage facilities	'
Segment Reporting Information	'
Number of assets (assets)	2
Marine terminals	'
Segment Reporting Information	'
Number of assets (assets)	2
Rail car unloading facility	'
Segment Reporting Information	'
Number of assets (assets)	1

Segment_Disclosures_Results_De

Segment Disclosures, Results (Details) (USD $)	3 Months Ended				9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012		Dec. 31, 2012
Segment Reporting Information, Additional Information	'		'		'		'		'
Capital Expenditures	$21,342		$25,737		$53,821		$75,298		'
Identifiable Assets	1,205,652		'		1,205,652		'		363,178
REVENUES	'		'		'		'		'
Affiliate	78,958		39,241		180,952		98,052		'
Third-party	14,819		4,712		24,322		11,049		'
Total Revenues	93,777		43,953		205,274		109,101		'
OPERATING AND MAINTENANCE EXPENSES	'		'		'		'		'
Segment operating and maintenance expenses	41,004		20,541		84,728		52,683		'
IMBALANCE SETTLEMENT LOSSES (GAINS)	'		'		'		'		'
Segment imbalance settlement gains	-1,159		-2,644		-6,159		-7,691		'
DEPRECIATION AND AMORTIZATION EXPENSES	'		'		'		'		'
Segment depreciation and amortization expenses	13,028		3,433		23,447		9,123		'
GENERAL AND ADMINISTRATIVE EXPENSES	'		'		'		'		'
Segment general and administrative expenses	3,956		2,165		8,192		4,848		'
LOSS ON ASSET DISPOSALS	'		'		'		'		'
Segment loss on asset disposals	13		21		177		257		'
OPERATING INCOME	'		'		'		'		'
Segment Operating Income	36,935		20,437		94,889		49,881		'
Interest and financing costs, net	-12,284		-1,810		-24,459		-3,360		'
Interest income	0		0		493		0		'
NET INCOME	21,053		16,541		58,904		39,811		'
Crude Oil Gathering	'		'		'		'		'
Segment Reporting Information, Additional Information	'		'		'		'		'
Capital Expenditures	17,261		4,219		36,130		13,168		'
Identifiable Assets	124,696		'		124,696		'		87,194
REVENUES	'		'		'		'		'
Affiliate	23,332		20,724		65,238		50,662		'
Third-party	544		123		1,274		360		'
Total Revenues	23,876		20,847		66,512		51,022		'
OPERATING AND MAINTENANCE EXPENSES	'		'		'		'		'
Segment operating and maintenance expenses	16,493		13,393		41,848		31,571		'
IMBALANCE SETTLEMENT LOSSES (GAINS)	'		'		'		'		'
Segment imbalance settlement gains	806	[1]	-1,364	[1]	-2,118	[1]	-3,860	[1]	'
DEPRECIATION AND AMORTIZATION EXPENSES	'		'		'		'		'
Segment depreciation and amortization expenses	1,026		916		3,061		2,482		'
GENERAL AND ADMINISTRATIVE EXPENSES	'		'		'		'		'
Segment general and administrative expenses	866		1,046		2,321		2,364		'
LOSS ON ASSET DISPOSALS	'		'		'		'		'
Segment loss on asset disposals	0		0		0		0		'
OPERATING INCOME	'		'		'		'		'
Segment Operating Income	4,685		6,856		21,400		18,465		'
Terminalling, Transportation and Storage	'		'		'		'		'
Segment Reporting Information, Additional Information	'		'		'		'		'
Capital Expenditures	4,081		21,518		17,691		62,130		'
Identifiable Assets	992,881		'		992,881		'		205,246
REVENUES	'		'		'		'		'
Affiliate	55,626	[2]	18,517	[2]	115,714	[2]	47,390	[2]	'
Third-party	14,275		4,589		23,048		10,689		'
Total Revenues	69,901		23,106		138,762		58,079		'
OPERATING AND MAINTENANCE EXPENSES	'		'		'		'		'
Segment operating and maintenance expenses	24,511		7,148		42,880		21,112		'
IMBALANCE SETTLEMENT LOSSES (GAINS)	'		'		'		'		'
Segment imbalance settlement gains	-1,965		-1,280		-4,041		-3,831		'
DEPRECIATION AND AMORTIZATION EXPENSES	'		'		'		'		'
Segment depreciation and amortization expenses	12,002		2,517		20,386		6,641		'
GENERAL AND ADMINISTRATIVE EXPENSES	'		'		'		'		'
Segment general and administrative expenses	3,090		1,119		5,871		2,484		'
LOSS ON ASSET DISPOSALS	'		'		'		'		'
Segment loss on asset disposals	13		21		177		257		'
OPERATING INCOME	'		'		'		'		'
Segment Operating Income	32,250		13,581		73,489		31,416		'
Other	'		'		'		'		'
Segment Reporting Information, Additional Information	'		'		'		'		'
Identifiable Assets	88,075		'		88,075		'		70,738
OPERATING INCOME	'		'		'		'		'
Unallocated general and administrative expenses	($3,598)		($2,086)		($12,019)		($6,710)		'
[1]	Imbalance settlement losses in the three months ended SeptemberB 30, 2013 primarily relate to the Crude Oil Pipeline Release.
[2]	Our Predecessors did not record revenue for transactions with Tesoro in the Terminalling, Transportation and Storage segment for assets acquired in the Acquisitions from Tesoro prior to the effective date of each acquisition.