Western Refining Logistics (WNRL) 10-Q 7 Aug 14 2014 Q2 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information Document (USD $)	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Aug. 01, 2014	Aug. 01, 2014
			Common Units [Member]	Subordinated Units [Member]
Entity Information [Line Items]	'	'	'	'
Entity Registrant Name	'Western Refining Logistics, LP	'	'	'
Entity Central Index Key	'0001581908	'	'	'
Document Type	'10-Q	'	'	'
Document Period End Date	30-Jun-14	'	'	'
Amendment Flag	'false	'	'	'
Document Fiscal Year Focus	'2014	'	'	'
Document Fiscal Period Focus	'Q2	'	'	'
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	'Non-accelerated Filer	'	'	'
Entity Public Float	'	$0	'	'
Entity Common Stock, Shares Outstanding	'	'	22,811,000	22,811,000

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (Unaudited) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$79,395	$84,000
Accounts receivable:	'	'
Affiliate	12,476	11,431
Third-party	288	16
Prepaid expenses	1,513	869
Other current assets	951	1,048
Total current assets	94,623	97,364
Property, plant and equipment, net	147,808	145,618
Other assets, net	2,298	2,557
Total assets	244,729	245,539
Accounts payable:	'	'
Third-party	3,591	7,680
Affiliate	3,244	1,303
Accrued liabilities, including deferred revenue from affiliate of $5,163 and $2,589, respectively	6,532	3,199
Total current liabilities	13,367	12,182
Long-term liabilities:	'	'
Other liabilities	10	5
Commitments and contingencies	'	'
Equity (Deficit):	'	'
Common unitholders - Public (15,812,500 units issued and outstanding)	325,879	326,151
Common unitholders - Western (6,998,500 units issued and outstanding)	-33,579	-33,174
Subordinated unitholders - Western (22,811,000 units issued and outstanding)	-60,948	-59,625
Total equity	231,352	233,352
Total liabilities and equity	$244,729	$245,539

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Unaudited) (Parentheticals) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified
Deferred revenue - Western	$5,163	$2,589
Common Units [Member] | Public [Member]	'	'
Limited Partners' Capital Account, Units Outstanding	15,812,500	15,812,500
Common Units [Member] | Western Refining, Inc. [Member]	'	'
Limited Partners' Capital Account, Units Outstanding	6,998,500	6,998,500
Subordinated Units [Member] | Western Refining, Inc. [Member]	'	'
Limited Partners' Capital Account, Units Outstanding	22,811,000	22,811,000

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Operations (Unaudited) (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Revenues:	'	'	'	'
Affiliate	$34,324	$1,007	$66,380	$1,919
Third-party	657	292	1,358	519
Total revenues	34,981	1,299	67,738	2,438
Operating costs and expenses:	'	'	'	'
Operating and maintenance expenses	17,954	18,505	34,089	34,072
General and administrative expenses	2,143	1,149	4,118	2,190
Depreciation and amortization	3,467	2,886	6,711	5,816
Total operating costs and expenses	23,564	22,540	44,918	42,078
Operating income (loss)	11,417	-21,241	22,820	-39,640
Other income (expense):	'	'	'	'
Interest expense and other financing costs	-227	0	-452	0
Amortization of loan fees	-130	0	-259	0
Other income, net	0	4	3	6
Income (loss) before income taxes	11,060	-21,237	22,112	-39,634
Provision for income taxes	-85	0	-204	0
Net income (loss)	$10,975	($21,237)	$21,908	($39,634)
Earnings Per Share [Abstract]	'	'	'	'
Distribution Made to Limited Partner, Distributions Declared, Per Unit	$0.30	'	$0.54	'
Common Units [Member]	'	'	'	'
Earnings Per Share [Abstract]	'	'	'	'
Earnings Per Share, Basic	$0.24	'	$0.48	'
Earnings Per Share, Diluted	$0.24	'	$0.48	'
Weighted Average Number of Shares Outstanding, Basic	22,811	'	22,811	'
Weighted Average Number of Shares Outstanding, Diluted	22,861	'	22,838	'
Subordinated Units [Member]	'	'	'	'
Earnings Per Share [Abstract]	'	'	'	'
Earnings Per Share, Basic and Diluted	$0.24	'	$0.48	'
Weighted Average Number of Shares Outstanding, Basic and Diluted	22,811	'	22,811	'

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Cash flows from operating activities:	'	'
Net income (loss)	$21,908	($39,634)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:	'	'
Depreciation and amortization	6,711	5,816
Amortization of loan fees	259	0
Unit-based compensation expense	581	0
Changes in operating assets and liabilities:	'	'
Accounts receivable - third-party	-272	0
Accounts receivable - affiliate	-1,045	-41
Prepaid expenses	-644	305
Other assets	-2	0
Accounts payable and accrued liabilities	1,124	-2,529
Other long-term liabilities	5	0
Net cash provided by (used in) operating activities	28,625	-36,083
Cash flows from investing activities:	'	'
Capital expenditures	-8,677	-36,069
Net cash used in investing activities	-8,677	-36,069
Cash flows from financing activities:	'	'
Distribution to affiliate	-16,043	0
Distribution to non-controlling interest holders	-8,510	0
Contributions from affiliate	0	72,152
Net cash provided by (used in) financing activities	-24,553	72,152
Net change in cash and cash equivalents	-4,605	0
Cash and cash equivalents at beginning of period	84,000	0
Cash and cash equivalents at end of period	79,395	0
Supplemental disclosure of cash flow information:	'	'
Interest paid	453	0
Supplemental disclosure of non-cash investing activities:	'	'
Accrued capital expenditures	$223	$997

Organization

Organization	6 Months Ended
	Jun. 30, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	'
	1. Organization
	Western Refining Logistics, LP ("WNRL," "we," "us" or the "Partnership") is a Delaware limited partnership formed in July 2013 by Western Refining Logistics GP, LLC ("WRGP"), our general partner. WRGP is owned 100% by Western Refining, Inc. ("Western") and holds all of the non-economic general partner interests in WNRL. On October 16, 2013, we completed our initial public offering (the "Offering") of 15,812,500 common units representing limited partner interests. Upon completion of the Offering, Western Refining Company, L.P. and Western Refining Southwest, Inc., each wholly-owned subsidiaries of Western, collectively held a 65.3% limited partner interest in WNRL, with the remaining 34.7% limited partner interest being held by public unitholders. See Note 3, Initial Public Offering, for further discussion.
	We engage in the gathering, transportation, storage and terminalling of crude oil and refined products and the storage, processing and terminalling of asphalt. Most of our assets are integral to the operations of Western’s refineries located in El Paso, Texas and near Gallup, New Mexico. Primarily, we operate in Arizona, New Mexico and West Texas. We generate substantially all of our revenues from transactions with Western.

Basis_of_Presentation_Signific

Basis of Presentation, Significant Accounting Policies and Recent Accounting Pronouncements	6 Months Ended
	Jun. 30, 2014
Accounting Policies [Abstract]	'
Basis of Presentation and Significant Accounting Policies [Text Block]	'
	2. Basis of Presentation, Significant Accounting Policies and Recent Accounting Pronouncements
	The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles ("GAAP") for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three and six months ended June 30, 2014 are not necessarily indicative of the results that may be expected for the year ending December 31, 2014, or for any other period.
	The Condensed Consolidated Balance Sheet at December 31, 2013, has been derived from the audited financial statements at that date but does not include all of the information and footnotes required by GAAP for complete financial statements. We have not reported comprehensive income due to the absence of items of other comprehensive income or loss during the periods presented. The accompanying condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2013.
	The accompanying condensed consolidated financial statements and related notes present, for periods prior to October 16, 2013, the combined financial position, results of operations and cash flows of Western Refining Logistics, LP, Predecessor, our predecessor for accounting purposes (the "Predecessor").
	Segment Reporting
	Due to the similarity of the assets we operate and how we manage our business, we have aggregated the divisions of the Partnership into one reportable operating segment for disclosure purposes. Our operating divisions reflect the way in which we internally report the financial information used to make decisions and allocate resources in connection with our operations.
	Use of Estimates
	The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
	Recent Accounting Pronouncements
	The accounting provisions covering the recognition and reporting of revenues were amended to remove inconsistencies in revenue requirements and to provide a more complete framework for addressing revenue issues across a broad range of industries and transaction types. The revised standard’s core principle is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. These provisions are effective for the first interim or annual period beginning after December 15, 2015, and are to be applied retrospectively, with early adoption not permitted. We do not expect the adoption of this guidance to materially affect our financial position, results of operations or cash flows.
	From time to time, new accounting pronouncements are issued by various standard setting bodies that may have an impact on our accounting and reporting. We believe that other recently issued accounting pronouncements and other authoritative guidance for which the effective date is in the future will either have no impact on our accounting or reporting, or that such impact, when implemented, will not be material to our financial position, results of operations or cash flows.

Initial_Public_Offering_Notes

Initial Public Offering (Notes)	6 Months Ended
	Jun. 30, 2014
Equity [Abstract]	'
Initial Public Offering [Text Block]	'
	3. Initial Public Offering
	Initial Public Offering and Contribution of Assets
	On October 10, 2013, our common units began trading on the New York Stock Exchange under the symbol "WNRL". On October 16, 2013, we closed the Offering of 15,812,500 common units at a price of $22.00 per common unit, resulting in gross proceeds of $347.9 million.
	On October 16, 2013, Western conveyed various pipeline, gathering, terminalling, transportation and storage assets at historical cost (the "Contributed Assets") to WNRL. Western retained certain assets that are related to the Predecessor’s operations.
	In exchange for the Contributed Assets, Western received:
	•	6,998,500 common units and 22,811,000 subordinated units, representing an aggregate 65.3% limited partner interest in WNRL;
	•	all of WNRL's incentive distribution rights; and
	•	an aggregate cash distribution of $244.9 million to certain of Western's wholly-owned subsidiaries.
	In connection with the Offering, we entered into a credit agreement that provides for a $300.0 million senior secured revolving credit facility that is available to fund working capital, acquisitions, distributions, capital expenditures and for other general partnership purposes. See Note 7, Debt, for further detail.
	We received net proceeds of $325.3 million from the sale of common units to the public, after deducting underwriting discounts and commissions and structuring fees of $22.6 million. We retained $75.7 million of the proceeds for general partnership purposes after payment of a cash distribution of $244.9 million to Western, offering expenses of $2.1 million and fees related to our Revolving Credit Facility of $2.6 million.

Earnings_per_Unit_Notes

Earnings per Unit (Notes)	6 Months Ended
	Jun. 30, 2014
Earnings Per Unit [Abstract]	'
Earnings Per Share [Text Block]	'
	4. Earnings Per Unit
	Net income per unit is calculated for the Partnership only for periods after the Offering as no units were outstanding prior to October 16, 2013. Earnings in excess of distributions are allocated to the limited partners based on their respective ownership interests. Payments made to our unitholders are determined in relation to actual distributions declared and are not based on the net income (loss) allocations used in the calculation of net income (loss) per unit.
	Diluted net income per unit includes the effects of potentially dilutive units of our common units that consist of unvested phantom units. These units are non-participating securities due to forfeitable nature of their associated distribution equivalent rights, prior to vesting, and we do not consider the units in the two-class method when calculating the net income per unit. Basic and diluted net income (loss) per unit applicable to subordinated limited partners are the same because there are no potentially dilutive subordinated units outstanding.
	In addition to the common and subordinated units, we have also identified the general partner interest and incentive distribution rights as participating securities and use the two-class method when calculating the net income per unit applicable to limited partners that is based on the weighted-average number of common units outstanding during the period. There have been no additional changes to the outstanding units after the closing of the Offering. As of June 30, 2014, there were no incentive distribution right payments to our general partner.
	The calculation of net income per unit for the three and six months ended June 30, 2014, is as follows:
		Three Months Ended			Six Months Ended
		June 30,
		2014
		(In thousands, except per unit data)
	Net income attributable to partners	$	10,975		$	21,908
	Limited partners' distributions on common units	(6,786		)	(12,277		)
	Limited partners' distributions on subordinated units	(6,786		)	(12,277		)
	Distributions greater than earnings	$	(2,597	)	$	(2,646	)
	Limited partners' earnings on common units:
	Distributions	$	6,786		$	12,277
	Allocation of distributions greater than earnings	(1,298		)	(1,323		)
	Total limited partners' earnings on common units	$	5,488		$	10,954
	Limited partners' earnings on subordinated units:
	Distributions	$	6,786		$	12,277
	Allocation of distributions greater than earnings	(1,299		)	(1,323		)
	Total limited partners' earnings on subordinated units	$	5,487		$	10,954
	Weighted average limited partner units outstanding:
	Common units - basic	22,811			22,811
	Common units - diluted	22,861			22,838
	Subordinated units - basic and diluted	22,811			22,811
	Net income per limited partner unit:
	Common - basic	$	0.24		$	0.48
	Common - diluted	0.24			0.48
	Subordinated - basic and diluted	0.24			0.48

Property_Plant_and_Equipment_N

Property, Plant and Equipment, Net	6 Months Ended
	Jun. 30, 2014
Property, Plant and Equipment [Abstract]	'
Property, Plant and Equipment Disclosure [Text Block]	'
	5. Property, Plant and Equipment, Net
	Property, plant and equipment, net was as follows:
		June 30,			December 31,
		2014			2013
		(In thousands)
	Buildings and improvements	$	5,428		$	5,428
	Pipelines and related assets	75,580			71,103
	Terminals and related assets	104,334			103,361
	Asphalt plant, terminals and related assets	22,714			22,714
		208,056			202,606
	Accumulated depreciation	(73,000		)	(66,289		)
		135,056			136,317
	Construction in progress	12,752			9,301
	Property, plant and equipment, net	$	147,808		$	145,618
	Depreciation expense was $3.5 million, $6.7 million, $2.9 million and $5.8 million for the three and six months ended June 30, 2014 and 2013, respectively.

Accrued_Liabilities

Accrued Liabilities	6 Months Ended
	Jun. 30, 2014
Accrued Liabilities [Abstract]	'
Accounts Payable and Accrued Liabilities Disclosure [Text Block]	'
	6. Accrued Liabilities
	Accrued liabilities were as follows:
		June 30,		December 31,
		2014		2013
		(In thousands)
	Deferred revenue - Western	$	5,163	$	2,589
	Property taxes	843		295
	Other	526		315
	Accrued liabilities	$	6,532	$	3,199

Debt_Notes

Debt (Notes)	6 Months Ended
	Jun. 30, 2014
Debt Disclosure [Abstract]	'
Debt Disclosure [Text Block]	'
	7. Debt
	Revolving Credit Facility
	We have a $300.0 million senior secured revolving credit agreement ("Credit Agreement") that matures on October 16, 2018. We have the ability to increase the total commitment of the revolving credit facility by up to $200.0 million for a total facility size of up to $500.0 million, subject to certain conditions. The Credit Agreement includes a $25.0 million sub-limit for standby letters of credit and a $10.0 million sub-limit for swing line loans. Obligations under the Credit Agreement and certain cash management and hedging obligations are guaranteed by all of our subsidiaries. Obligations under the Credit Agreement are secured by a first priority lien on substantially all of our and our subsidiaries' significant assets. Our creditors under the Credit Agreement have no recourse to Western's assets, except to the extent of the assets of WRGP that Western wholly owns. Borrowings under the revolving credit facility bear interest at either a base rate plus an applicable margin ranging from 0.75% to 1.75%, or at LIBOR plus an applicable margin ranging from 1.75% to 2.75%. The applicable margin will vary based on our Consolidated Total Leverage Ratio, as defined in the Credit Agreement. We had no direct or swing line borrowings and no letters of credit outstanding under our Credit Agreement as of June 30, 2014.
	The Credit Agreement contains covenants that limit or restrict our ability to make cash distributions. We are required to maintain certain financial ratios, each tested on a quarterly basis for the immediately preceding four quarter period.

Equity_Notes

Equity (Notes)	6 Months Ended
	Jun. 30, 2014
Equity [Abstract]	'
Stockholders' Equity Note Disclosure [Text Block]	'
	8. Equity
	We had 15,812,500 common units held by the public outstanding as of June 30, 2014. Western owns 6,998,500 of our common units and 22,811,000 of our subordinated units constituting an aggregate limited partner interest of 65.3%. The Offering transactions were allocated in accordance with agreements signed concurrently with the Offering and the pro-rata ownership of the units held by Western. There have been no changes to the number of outstanding units since the completion of the Offering. In accordance with our partnership agreement, Western's subordinated units will convert to common units once we have met specified distribution targets and successfully completed other tests set forth in our partnership agreement.
	Issuance of Additional Interests
	Our partnership agreement authorizes us to issue additional partnership interests for the consideration and on the terms and conditions determined by our general partner without the approval of the unitholders. It is possible that we will fund acquisitions through the issuance of additional common units, subordinated units or other partnership interests. Holders of any additional common units we issue will be entitled to share proportionally in accordance with their respective percentage interests with the then-existing common unitholders in our distributions of available cash.
	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 shall 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 distribution right payments allocated 100% to the general partner.
	Percentage Allocations of Available Cash from Operating Surplus
	The following table illustrates the percentage allocations of available cash from operating surplus between the unitholders and our general partner (as the holder of our incentive distribution rights) based on the specified target distribution levels. The amounts set forth under the column heading "Marginal Percentage Interest in Distributions" are the percentage interests of our general partner and the unitholders in any available cash from operating surplus we distribute up to and including the corresponding amount in the column "Total Quarterly Distribution per Unit Target Amount". The percentage interests shown for our unitholders and our general partner for the minimum quarterly distribution are also applicable to quarterly distribution amounts that are less than the minimum quarterly distribution. The percentage interests set forth below assume our general partner has not transferred its incentive distribution rights and there are no arrearages on common units.
			Total Quarterly Distribution		Marginal Percentage
			per Unit Target Amount		Interest in Distributions
					Unitholders		General Partner
	Minimum Quarterly Distribution		$0.29		100	%	—
	First Target Distribution		above $0.2875 up to $0.3306		100	%	—
	Second Target Distribution		above $0.3306 up to $0.3594		85	%	15	%
	Third Target Distribution		above $0.3594 up to $0.4313		75	%	25	%
	Thereafter		above $0.4313		50	%	50	%
	Our partnership agreement sets forth the calculation we will use to determine the amount and priority of cash distributions that the common and subordinated unitholders and general partner will receive. We declare distributions subsequent to quarter end. In accordance with our partnership agreement, on January 31, 2014, our general partner's board of directors declared a quarterly cash distribution of $0.2407 per unit for the prorated period of October 16, 2013, through December 31, 2013, and corresponds to the prorated minimum quarterly distribution of $0.2875 per unit. We paid the distribution on February 24, 2014, to all unitholders of record on February 14, 2014. We made no distributions prior to this date.
	The table below summarizes our 2014 quarterly distribution declarations, payments and scheduled payments through August 25, 2014:
		2014
		Declaration Date		Record Date		Payment Date	Distribution per Common and Subordinated Unit
	First quarter	2-May		16-May		26-May	$	0.2975
	Second quarter	1-Aug		15-Aug		25-Aug	0.3075
	Total						$	0.605

EquityBased_Compensation_Notes

Equity-Based Compensation (Notes)	6 Months Ended
	Jun. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Shareholders' Equity and Share-based Payments [Text Block]	'
	9. Equity-Based Compensation
	Our general partner's board of directors adopted the Western Refining Logistics, LP 2013 Long-Term Incentive Plan (the "LTIP") in connection with the completion of the Offering. The LTIP is for the benefit of employees, consultants and non‑employee directors of our general partner and its affiliates. Awards granted under the LTIP vest over a scheduled vesting period and their market value at the date of the grant is amortized over the restricted period on a straight-line basis.
	As of June 30, 2014, there were 4,251,947 common units reserved for future grants under the LTIP. We incurred unit‑based compensation expense of $0.4 million and $0.6 million for the three and six months ended June 30, 2014, respectively.
	The fair value at grant date of nonvested phantom units outstanding as of June 30, 2014, was $7.0 million. Total unrecognized compensation cost related to our nonvested phantom units totaled $6.3 million as of June 30, 2014, that we expect to recognize over a weighted-average period of approximately 4.70 years.
	A summary of our unit award activity for the three and six months ended June 30, 2014, is set forth below:
		Number of Phantom Units	Weighted Average
			Grant Date
			Fair Value
	Nonvested at December 31, 2013	10,908	$	22
	Awards granted	200,975	27.6
	Awards vested	—	—
	Awards forfeited	—	—
	Nonvested at March 31, 2014	211,883	27.31
	Awards granted	36,170	32.3
	Awards vested	—	—
	Awards forfeited	—	—
	Nonvested at June 30, 2014	248,053	28.04

Major_Customers_Notes

Major Customers (Notes)	6 Months Ended
	Jun. 30, 2014
Risks and Uncertainties [Abstract]	'
Concentration Risk Disclosure [Text Block]	'
	10. Major Customers
	We are part of the consolidated operations of Western, and we derive substantially all of our revenue from transactions with Western and its affiliates. Western accounted for approximately 98.1%, 98.0%, 77.5% and 78.7%, respectively, of our consolidated revenues for the three and six months ended June 30, 2014 and 2013. These percentages are not comparable as Western did not charge for the Predecessor's services in prior years. Prior to the completion of the Offering, our Predecessor did not record all revenues for intercompany gathering, pipeline transportation, terminalling and storage services. See Note 14, Related Party Transactions, for detailed information on our agreements with Western that became effective concurrent with the closing of the Offering.

Income_Tax

Income Tax	6 Months Ended
	Jun. 30, 2014
Income Tax Disclosure [Abstract]	'
Income Tax Disclosure [Text Block]	'
	11. Income Taxes
	We are not a taxable entity for United States federal income tax purposes or for the majority of states that impose an income tax. Taxes on our net income generally are borne by our partners through the allocation of taxable income. Our income tax expense results from state laws that apply to entities organized as partnerships, primarily in the state of Texas. Prior to the Offering, our operations in Texas were not taxable. For the three and six months ended June 30, 2014, our income tax expense was $0.1 million and $0.2 million, respectively. Our effective tax rate for the three and six months ended June 30, 2014 was 0.8% and 0.9%, respectively.
	As of June 30, 2014 and December 31, 2013, we had no unrecognized tax benefit liability. No interest or penalties were recognized related to income taxes during the three and six months ended June 30, 2014 and 2013.

Commitments

Commitments	6 Months Ended
	Jun. 30, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Commitments Disclosure [Text Block]	'
	12. Commitments
	We have commitments under various operating leases with initial terms greater than one year for machinery and facilities. These leases have terms that will expire on various dates through 2025. We expect that in the normal course of business, these leases will be renewed or replaced by other leases. Certain of our lease agreements provide for the fair value purchase of the leased asset at the end of the lease. Rent expense for operating leases that provide for periodic rent escalations or rent holidays over the term of the lease is recognized on a straight-line basis.
	The following table presents our annual minimum rental payments under non-cancelable operating leases that have lease terms of one year or more (in thousands) as of June 30, 2014:
	Remaining 2014	$	21
	2015	5
	2016	5
	2017	5
	2018	5
	2019 and thereafter	37
		$	78
	Total rental expense was $0.1 million, $0.3 million, $0.01 million and $0.03 million for the three and six months ended June 30, 2014 and 2013, respectively.

Contingencies

Contingencies	6 Months Ended
	Jun. 30, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Contingencies Disclosure [Text Block]	'
	13. Contingencies
	Like other operators of petroleum-related storage and transportation facilities, our operations are subject to extensive and periodically changing federal and state environmental regulations governing air emissions, wastewater discharges and solid and hazardous waste management activities. Many of these regulations are becoming increasingly stringent, and we can expect the cost of compliance to increase over time. Our policy is to accrue environmental and clean-up related costs of a non-capital nature when it is probable that a liability exists and when we can reasonably estimate the amount. We may revise such estimates in the future as regulations and other conditions change. We may receive communications from various federal, state and local governmental authorities asserting violations of environmental laws and/or regulations. These governmental entities may also propose or assess fines or require corrective action for such asserted violations. We intend to respond in a timely manner to all such communications and to take appropriate corrective action.
	We are not currently aware of any environmental or other asserted or unasserted claims against us that would be expected to have a material adverse effect on our financial condition, results of operations or cash flows.

Related_Party_Transactions

Related Party Transactions	6 Months Ended
	Jun. 30, 2014
Related Party Transactions [Abstract]	'
Related Party Transactions Disclosure [Text Block]	'
	14. Related Party Transactions
	Currently, all of our employees are shared employees with Western. At the closing of the Offering, we entered into a services agreement with Western under which Western agreed to share certain employees with us. These employees are responsible for operation, maintenance and other services related to the assets we own and operate. Western employees provide these services under our direction, supervision and control pursuant to this services agreement. Western also provides us with support for accounting, legal, human resources and various other administrative functions. We reimburse Western for these services under the services and omnibus agreements.
	We have incurred indirect charges for executive oversight, accounting, treasury, tax, legal, procurement, engineering, logistics, maintenance and information technology and similar items. We have classified these indirect charges between general and administrative expenses and operating and maintenance expenses based on the functional nature of the services being performed for our operations. Indirect charges were as follows:
		Three Months Ended				Six Months Ended
		June 30,				June 30,
		2014		2013		2014		2013
		(in thousands)
	Indirect charges:
	General and administrative expenses	$	2,143	$	1,148	$	4,118	$	2,189
	Operating and maintenance expenses	9,047		4,620		16,061		8,149
	Total indirect charges	$	11,190	$	5,768	$	20,179	$	10,338
	Our management believes the indirect charges allocated to us are a reasonable reflection of the utilization of services provided. However, these allocations may not fully reflect the expenses that we would have incurred had we been a stand-alone company during the periods presented.
	Agreements with Western
	We derive substantially all of our revenues through various pipeline transportation, terminal distribution and storage services under long-term, fee-based commercial agreements with Western that expire in 2023. These agreements contain minimum volume commitments. Each agreement has fees that are indexed for inflation and provides us with options to renew for two additional five-year terms.
	In addition to the commercial agreements, we are also party to a services agreement and an omnibus agreement with Western, as described above, that, among other things, provides for reimbursement to Western for various general and administrative services provided to us. We are also party to an operational services agreement with Western under which we reimburse for personnel services provided by Western in support of the operations of our pipelines, terminals and storage facilities.
	We entered into three separate ground lease and access agreements with Western. All three agreements are for 10-year terms with provision for automatic renewal of up to four consecutive 10-year periods. Under each separate agreement, WNRL pays nominal annual rents. Rents due under these three agreements in the aggregate are less than $0.1 million over the initial terms of the agreements.

Basis_of_Presentation_Signific1

Basis of Presentation, Significant Accounting Policies and Recent Accounting Pronouncements (Policies)	6 Months Ended
	Jun. 30, 2014
Accounting Policies [Abstract]	'
Use of Estimates, Policy [Policy Text Block]	'
	Use of Estimates
	The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
Segment Reporting, Policy [Policy Text Block]	'
	Segment Reporting
	Due to the similarity of the assets we operate and how we manage our business, we have aggregated the divisions of the Partnership into one reportable operating segment for disclosure purposes. Our operating divisions reflect the way in which we internally report the financial information used to make decisions and allocate resources in connection with our operations.

Earnings_per_Unit_Tables

Earnings per Unit (Tables)	6 Months Ended
	Jun. 30, 2014
Earnings Per Unit [Abstract]	'
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	'
	The calculation of net income per unit for the three and six months ended June 30, 2014, is as follows:
		Three Months Ended			Six Months Ended
		June 30,
		2014
		(In thousands, except per unit data)
	Net income attributable to partners	$	10,975		$	21,908
	Limited partners' distributions on common units	(6,786		)	(12,277		)
	Limited partners' distributions on subordinated units	(6,786		)	(12,277		)
	Distributions greater than earnings	$	(2,597	)	$	(2,646	)
	Limited partners' earnings on common units:
	Distributions	$	6,786		$	12,277
	Allocation of distributions greater than earnings	(1,298		)	(1,323		)
	Total limited partners' earnings on common units	$	5,488		$	10,954
	Limited partners' earnings on subordinated units:
	Distributions	$	6,786		$	12,277
	Allocation of distributions greater than earnings	(1,299		)	(1,323		)
	Total limited partners' earnings on subordinated units	$	5,487		$	10,954
	Weighted average limited partner units outstanding:
	Common units - basic	22,811			22,811
	Common units - diluted	22,861			22,838
	Subordinated units - basic and diluted	22,811			22,811
	Net income per limited partner unit:
	Common - basic	$	0.24		$	0.48
	Common - diluted	0.24			0.48
	Subordinated - basic and diluted	0.24			0.48

Property_Plant_and_Equipment_N1

Property, Plant and Equipment, Net (Tables)	6 Months Ended
	Jun. 30, 2014
Property, Plant and Equipment [Abstract]	'
Property, Plant and Equipment [Table Text Block]	'
	Property, plant and equipment, net was as follows:
		June 30,			December 31,
		2014			2013
		(In thousands)
	Buildings and improvements	$	5,428		$	5,428
	Pipelines and related assets	75,580			71,103
	Terminals and related assets	104,334			103,361
	Asphalt plant, terminals and related assets	22,714			22,714
		208,056			202,606
	Accumulated depreciation	(73,000		)	(66,289		)
		135,056			136,317
	Construction in progress	12,752			9,301
	Property, plant and equipment, net	$	147,808		$	145,618

Accrued_Liabilities_Tables

Accrued Liabilities (Tables)	6 Months Ended
	Jun. 30, 2014
Accrued Liabilities [Abstract]	'
Schedule of Accrued Liabilities [Table Text Block]	'
	Accrued liabilities were as follows:
		June 30,		December 31,
		2014		2013
		(In thousands)
	Deferred revenue - Western	$	5,163	$	2,589
	Property taxes	843		295
	Other	526		315
	Accrued liabilities	$	6,532	$	3,199

Equity_Tables

Equity (Tables)	6 Months Ended
	Jun. 30, 2014
Equity [Abstract]	'
Distributions Made to Limited Partner, by Distribution [Table Text Block]	'
	The table below summarizes our 2014 quarterly distribution declarations, payments and scheduled payments through August 25, 2014:
		2014
		Declaration Date		Record Date		Payment Date	Distribution per Common and Subordinated Unit
	First quarter	2-May		16-May		26-May	$	0.2975
	Second quarter	1-Aug		15-Aug		25-Aug	0.3075
	Total						$	0.605
Schedule of Incentive Distributions Made to Managing Members or General Partners by Distribution [Table Text Block]	'
	The following table illustrates the percentage allocations of available cash from operating surplus between the unitholders and our general partner (as the holder of our incentive distribution rights) based on the specified target distribution levels. The amounts set forth under the column heading "Marginal Percentage Interest in Distributions" are the percentage interests of our general partner and the unitholders in any available cash from operating surplus we distribute up to and including the corresponding amount in the column "Total Quarterly Distribution per Unit Target Amount". The percentage interests shown for our unitholders and our general partner for the minimum quarterly distribution are also applicable to quarterly distribution amounts that are less than the minimum quarterly distribution. The percentage interests set forth below assume our general partner has not transferred its incentive distribution rights and there are no arrearages on common units.
			Total Quarterly Distribution		Marginal Percentage
			per Unit Target Amount		Interest in Distributions
					Unitholders		General Partner
	Minimum Quarterly Distribution		$0.29		100	%	—
	First Target Distribution		above $0.2875 up to $0.3306		100	%	—
	Second Target Distribution		above $0.3306 up to $0.3594		85	%	15	%
	Third Target Distribution		above $0.3594 up to $0.4313		75	%	25	%
	Thereafter		above $0.4313		50	%	50	%

EquityBased_Compensation_Table

Equity-Based Compensation (Tables)	6 Months Ended
	Jun. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]	'
	A summary of our unit award activity for the three and six months ended June 30, 2014, is set forth below:
		Number of Phantom Units	Weighted Average
			Grant Date
			Fair Value
	Nonvested at December 31, 2013	10,908	$	22
	Awards granted	200,975	27.6
	Awards vested	—	—
	Awards forfeited	—	—
	Nonvested at March 31, 2014	211,883	27.31
	Awards granted	36,170	32.3
	Awards vested	—	—
	Awards forfeited	—	—
	Nonvested at June 30, 2014	248,053	28.04

Commitments_Tables

Commitments (Tables)	6 Months Ended
	Jun. 30, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]	'
	The following table presents our annual minimum rental payments under non-cancelable operating leases that have lease terms of one year or more (in thousands) as of June 30, 2014:
	Remaining 2014	$	21
	2015	5
	2016	5
	2017	5
	2018	5
	2019 and thereafter	37
		$	78

Related_Party_Transactions_Tab

Related Party Transactions (Tables)	6 Months Ended
	Jun. 30, 2014
Related Party Transactions [Abstract]	'
Schedule of Related Party Transactions [Table Text Block]	'
	We have incurred indirect charges for executive oversight, accounting, treasury, tax, legal, procurement, engineering, logistics, maintenance and information technology and similar items. We have classified these indirect charges between general and administrative expenses and operating and maintenance expenses based on the functional nature of the services being performed for our operations. Indirect charges were as follows:
		Three Months Ended				Six Months Ended
		June 30,				June 30,
		2014		2013		2014		2013
		(in thousands)
	Indirect charges:
	General and administrative expenses	$	2,143	$	1,148	$	4,118	$	2,189
	Operating and maintenance expenses	9,047		4,620		16,061		8,149
	Total indirect charges	$	11,190	$	5,768	$	20,179	$	10,338

Organization_Details

Organization (Details)	0 Months Ended
	Oct. 16, 2013	Jun. 30, 2014
Western Refining, Inc. [Member]	'	'
Related Party Transaction [Line Items]	'	'
Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest	'	100.00%
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest	65.30%	'
Public [Member]	'	'
Related Party Transaction [Line Items]	'	'
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest	34.70%	'
Partners' Capital Account, Units, Sold in Public Offering	15,812,500	'

Basis_of_Presentation_Signific2

Basis of Presentation, Significant Accounting Policies and Recent Accounting Pronouncements (Details)	Jun. 30, 2014
	operating_segments
Accounting Policies [Abstract]	'
Segment Reporting, Number of Business Segments	1

Initial_Public_Offering_Detail

Initial Public Offering (Details) (USD $)	0 Months Ended	6 Months Ended
	Oct. 16, 2013	Jun. 30, 2014	Jun. 30, 2013
Other Ownership Interests [Line Items]	'	'	'
Cash distributed to Western	'	$8,510,000	$0
Underwriting Discounts Relating to Issuance of Shares	22,600,000	'	'
Retained for general partnership purposes	75,700,000	'	'
Offering expenses	2,100,000	'	'
Public [Member]	'	'	'
Other Ownership Interests [Line Items]	'	'	'
Partners' Capital Account, Units, Sold in Public Offering	15,812,500	'	'
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest	34.70%	'	'
Common Units [Member]	'	'	'
Other Ownership Interests [Line Items]	'	'	'
Sale of Stock, Price Per Share	$22	'	'
Proceeds from Issuance of Common Limited Partners Units	347,900,000	'	'
Proceeds from the Sale of Common Units, Net	325,300,000	'	'
Common Units [Member] | Public [Member]	'	'	'
Other Ownership Interests [Line Items]	'	'	'
Partners' Capital Account, Units, Sold in Public Offering	15,812,500	'	'
Western Refining, Inc. [Member]	'	'	'
Other Ownership Interests [Line Items]	'	'	'
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest	65.30%	65.30%	'
Cash distributed to Western	244,900,000	'	'
Western Refining, Inc. [Member] | Common Units [Member]	'	'	'
Other Ownership Interests [Line Items]	'	'	'
Partners' Capital Account, Units, Sold in Public Offering	6,998,500	'	'
Western Refining, Inc. [Member] | Subordinated Units [Member]	'	'	'
Other Ownership Interests [Line Items]	'	'	'
Partners' Capital Account, Units, Sold in Public Offering	22,811,000	'	'
Revolving Credit Facility [Member] | Revolving Credit Agreement - WNRL [Member]	'	'	'
Other Ownership Interests [Line Items]	'	'	'
Line of Credit Facility, Current Borrowing Capacity	300,000,000	'	'
Debt Instrument, Fee Amount	$2,600,000	'	'

Earnings_per_Unit_Details

Earnings per Unit (Details) (USD $)	3 Months Ended		6 Months Ended		9 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Oct. 09, 2013
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]	'	'	'	'	'	'
Net income (loss)	$10,975,000	($21,237,000)	$21,908,000	($39,634,000)	'	'
Undistributed Earnings (Loss) Allocated to Participating Securities, Basic	-2,597,000	'	-2,646,000	'	'	'
Limited Partners' Capital Account, Units Outstanding	'	'	'	'	'	0
Stock Issued During Period, Shares, New Issues	'	'	'	'	0	'
Incentive Distribution, Distribution	'	'	'	'	0	'
Common Units [Member]	'	'	'	'	'	'
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]	'	'	'	'	'	'
Distribution Made to Limited Partner, Cash Distribution Declared	-6,786,000	'	-12,277,000	'	'	'
Limited Partner Distributions	6,786,000	'	12,277,000	'	'	'
Weighted Average Number of Shares Outstanding, Basic	22,811,000	'	22,811,000	'	'	'
Weighted Average Number of Shares Outstanding, Diluted	22,861,000	'	22,838,000	'	'	'
Earnings Per Share, Basic	$0.24	'	$0.48	'	'	'
Earnings Per Share, Diluted	$0.24	'	$0.48	'	'	'
Common Units [Member] | Limited Partner [Member]	'	'	'	'	'	'
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]	'	'	'	'	'	'
Undistributed Earnings (Loss) Allocated to Participating Securities, Basic	-1,298,000	'	-1,323,000	'	'	'
Participating Securities, Distributed and Undistributed Earnings (Loss), Basic	5,488,000	'	10,954,000	'	'	'
Subordinated Units [Member]	'	'	'	'	'	'
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]	'	'	'	'	'	'
Distribution Made to Limited Partner, Cash Distribution Declared	-6,786,000	'	-12,277,000	'	'	'
Limited Partner Distributions	6,786,000	'	12,277,000	'	'	'
Weighted Average Number of Shares Outstanding, Basic and Diluted	22,811,000	'	22,811,000	'	'	'
Earnings Per Share, Basic and Diluted	$0.24	'	$0.48	'	'	'
Weighted Average Number Diluted Shares Outstanding Adjustment	'	'	0	'	'	'
Subordinated Units [Member] | Limited Partner [Member]	'	'	'	'	'	'
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]	'	'	'	'	'	'
Undistributed Earnings (Loss) Allocated to Participating Securities, Basic	-1,299,000	'	-1,323,000	'	'	'
Participating Securities, Distributed and Undistributed Earnings (Loss), Basic	$5,487,000	'	$10,954,000	'	'	'

Property_Plant_and_Equipment_N2

Property, Plant and Equipment, Net (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Property, Plant and Equipment [Line Items]	'	'	'	'	'
Property, Plant and Equipment, Gross	$208,056	'	$208,056	'	$202,606
Accumulated depreciation	-73,000	'	-73,000	'	-66,289
Property, Plant and Equipment, Net, Excluding Construction in Progress	135,056	'	135,056	'	136,317
Construction in progress	12,752	'	12,752	'	9,301
Property, plant and equipment, net	147,808	'	147,808	'	145,618
Depreciation and amortization	3,467	2,886	6,711	5,816	'
Buildings and improvements	'	'	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'	'	'
Property, Plant and Equipment, Gross	5,428	'	5,428	'	5,428
Pipelines and related assets	'	'	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'	'	'
Property, Plant and Equipment, Gross	75,580	'	75,580	'	71,103
Terminals and related assets	'	'	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'	'	'
Property, Plant and Equipment, Gross	104,334	'	104,334	'	103,361
Asphalt plant, terminals and related assets	'	'	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'	'	'
Property, Plant and Equipment, Gross	$22,714	'	$22,714	'	$22,714

Accrued_Liabilities_Details

Accrued Liabilities (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Accrued Liabilities [Abstract]	'	'
Deferred revenue - Western	$5,163	$2,589
Property taxes	843	295
Other	526	315
Accrued liabilities	$6,532	$3,199

Debt_Details

Debt (Details) (Revolving Credit Facility [Member], USD $)	0 Months Ended
	Oct. 16, 2013	Jun. 30, 2014
Revolving Credit Agreement - WNRL [Member]	'	'
Line of Credit Facility [Line Items]	'	'
Line of Credit Facility, Current Borrowing Capacity	$300,000,000	'
Line of Credit Facility, Expiration Date	16-Oct-18	'
Line of Credit Facility, Difference Between Current Borrowing Capacity and Maximum Borrowing Capacity	200,000,000	'
Line of Credit Facility, Maximum Borrowing Capacity	500,000,000	'
Debt Instrument, Description of Variable Rate Basis	'LIBOR	'
Line of Credit Facility, Amount Outstanding	'	0
Standby Letters of Credit [Member]	'	'
Line of Credit Facility [Line Items]	'	'
Sublimit, Revolving Credit Facility	25,000,000	'
Line of Credit Facility, Amount Outstanding	'	0
Loans [Member]	'	'
Line of Credit Facility [Line Items]	'	'
Sublimit, Revolving Credit Facility	10,000,000	'
Line of Credit Facility, Amount Outstanding	'	$0
Minimum [Member] | Revolving Credit Agreement - WNRL [Member]	'	'
Line of Credit Facility [Line Items]	'	'
Debt Instrument, Interest Rate, Stated Percentage	0.75%	'
Debt Instrument, Basis Spread on Variable Rate	1.75%	'
Maximum [Member] | Revolving Credit Agreement - WNRL [Member]	'	'
Line of Credit Facility [Line Items]	'	'
Debt Instrument, Interest Rate, Stated Percentage	1.75%	'
Debt Instrument, Basis Spread on Variable Rate	2.75%	'

Equity_Details

Equity (Details)	9 Months Ended			0 Months Ended	6 Months Ended
	Jun. 30, 2014	Oct. 09, 2013	Jun. 30, 2014	Oct. 16, 2013	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2014
			Public [Member]	Western Refining, Inc. [Member]	Western Refining, Inc. [Member]	Western Refining, Inc. [Member]	Western Refining, Inc. [Member]
			Common Units [Member]			Common Units [Member]	Subordinated Units [Member]
Capital Unit [Line Items]	'	'	'	'	'	'	'
Limited Partners' Capital Account, Units Outstanding	'	0	15,812,500	'	'	6,998,500	22,811,000
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest	'	'	'	65.30%	65.30%	'	'
Stock Issued During Period, Shares, New Issues	0	'	'	'	'	'	'

Equity_Distribution_Targets_De

Equity (Distribution Targets) (Details)	6 Months Ended
	Jun. 30, 2014
Minimum Quarterly Distribution [Member]	'
Incentive Distribution Made to Managing Member or General Partner [Line Items]	'
Distribution Payment Targets	'$0.2875
First Target Distribution [Member]	'
Incentive Distribution Made to Managing Member or General Partner [Line Items]	'
Distribution Payment Targets	'above $0.2875B upB toB $0.3306
Second Target Distribution [Member]	'
Incentive Distribution Made to Managing Member or General Partner [Line Items]	'
Distribution Payment Targets	'aboveB $0.3306 up toB $0.3594
Third Target Distribution [Member]	'
Incentive Distribution Made to Managing Member or General Partner [Line Items]	'
Distribution Payment Targets	'above $0.3594 up to $0.4313
Target Distribution After Third Target [Member]	'
Incentive Distribution Made to Managing Member or General Partner [Line Items]	'
Distribution Payment Targets	'above $0.4313
Limited Partner [Member] | Minimum Quarterly Distribution [Member]	'
Incentive Distribution Made to Managing Member or General Partner [Line Items]	'
Incentive Distribution, Distribution Split Marginal Percentage	100.00%
Limited Partner [Member] | First Target Distribution [Member]	'
Incentive Distribution Made to Managing Member or General Partner [Line Items]	'
Incentive Distribution, Distribution Split Marginal Percentage	100.00%
Limited Partner [Member] | Second Target Distribution [Member]	'
Incentive Distribution Made to Managing Member or General Partner [Line Items]	'
Incentive Distribution, Distribution Split Marginal Percentage	85.00%
Limited Partner [Member] | Third Target Distribution [Member]	'
Incentive Distribution Made to Managing Member or General Partner [Line Items]	'
Incentive Distribution, Distribution Split Marginal Percentage	75.00%
Limited Partner [Member] | Target Distribution After Third Target [Member]	'
Incentive Distribution Made to Managing Member or General Partner [Line Items]	'
Incentive Distribution, Distribution Split Marginal Percentage	50.00%
General Partner [Member]	'
Incentive Distribution Made to Managing Member or General Partner [Line Items]	'
Incentive Cash Distribution Allocation	100.00%
General Partner [Member] | Minimum Quarterly Distribution [Member]	'
Incentive Distribution Made to Managing Member or General Partner [Line Items]	'
Incentive Distribution, Distribution Split Marginal Percentage	0.00%
General Partner [Member] | First Target Distribution [Member]	'
Incentive Distribution Made to Managing Member or General Partner [Line Items]	'
Incentive Distribution, Distribution Split Marginal Percentage	0.00%
General Partner [Member] | Second Target Distribution [Member]	'
Incentive Distribution Made to Managing Member or General Partner [Line Items]	'
Incentive Distribution, Distribution Split Marginal Percentage	15.00%
General Partner [Member] | Third Target Distribution [Member]	'
Incentive Distribution Made to Managing Member or General Partner [Line Items]	'
Incentive Distribution, Distribution Split Marginal Percentage	25.00%
General Partner [Member] | Target Distribution After Third Target [Member]	'
Incentive Distribution Made to Managing Member or General Partner [Line Items]	'
Incentive Distribution, Distribution Split Marginal Percentage	50.00%

Equity_Distributions_Details

Equity (Distributions) (Details) (USD $)	3 Months Ended			6 Months Ended	3 Months Ended	9 Months Ended	6 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Jun. 30, 2014	Sep. 30, 2014	Sep. 30, 2014	Jun. 30, 2014
					Subsequent Event [Member]	Dividend Declared [Member]	Minimum Quarterly Distribution [Member]
Incentive Distribution Made to Managing Member or General Partner [Line Items]	'	'	'	'	'	'	'
Dividend Arrearges, Common Limited Partner Units	$0	'	'	$0	'	'	'
Distribution Made to Limited Partner, Distributions Declared, Per Unit	$0.30	$0.24	$0	$0.54	$0.31	$0.61	'
Distribution Payment Target, Distribution Declared, Per Unit	'	'	'	'	'	'	$0.29

EquityBased_Compensation_Detai

Equity-Based Compensation (Details) (WNRL 2013 LTIP [Member], USD $)	3 Months Ended	6 Months Ended
In Millions, except Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Common Stock, Capital Shares Reserved for Future Issuance	4,251,947	4,251,947
Phantom Share Units (PSUs) [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Allocated Share-based Compensation Expense	$0.40	$0.60
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Total Weighted Average Grant Date Fair Value	7	7
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	$6.30	$6.30
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	'	'4 years 8 months 12 days

EquityBased_Compensation_Phant

Equity-Based Compensation (Phantom Unit Activity) (Details) (WNRL 2013 LTIP [Member], Phantom Share Units (PSUs) [Member], USD $)	3 Months Ended
	Jun. 30, 2014	Mar. 31, 2014
WNRL 2013 LTIP [Member] | Phantom Share Units (PSUs) [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	211,883	10,908
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	36,170	200,975
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	248,053	211,883
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	$27.31	$22
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	$32.30	$27.60
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	$28.04	$27.31

Major_Customers_Details

Major Customers (Details) (Customer Concentration Risk [Member], Sales Revenue, Net [Member], Western Refining, Inc. [Member])	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Customer Concentration Risk [Member] | Sales Revenue, Net [Member] | Western Refining, Inc. [Member]	'	'	'	'
Concentration Risk [Line Items]	'	'	'	'
Concentration Risk, Percentage	98.10%	77.50%	98.00%	78.70%

Income_Tax_Details

Income Tax (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'	'	'	'	'
Income Tax Expense (Benefit)	$85	$0	$204	$0	'
Effective Income Tax Rate Reconciliation, Percent	-0.80%	'	-0.90%	'	'
Unrecognized Tax Benefits	0	'	0	'	0
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	$0	$0	$0	$0	'

Commitments_Details

Commitments (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Commitments and Contingencies Disclosure [Abstract]	'	'	'	'
Remaining 2014	$21,000	'	$21,000	'
2015	5,000	'	5,000	'
2016	5,000	'	5,000	'
2017	5,000	'	5,000	'
2018	5,000	'	5,000	'
2019 and thereafter	37,000	'	37,000	'
Operating Leases, Future Minimum Payments Due	78,000	'	78,000	'
Operating Leases, Rent Expense	$100,000	$10,000	$300,000	$0

Related_Party_Transactions_Det

Related Party Transactions (Details) (USD $)	3 Months Ended		6 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014
					Maximum [Member]
					Ground Lease and Access Agreements [Member]
					Western Refining, Inc. [Member]
Related Party Transaction [Line Items]	'	'	'	'	'
Operating Leases, Rent Expense	$0.10	$0.01	$0.30	$0	$0.10

Related_Party_Transactions_Ind

Related Party Transactions (Indirect Charges) (Details) (Western Refining, Inc. [Member], USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Related Party Transaction [Line Items]	'	'	'	'
Related Party Transaction, Expenses from Transactions with Related Party	$11,190	$5,768	$20,179	$10,338
General and Administrative Expense [Member]	'	'	'	'
Related Party Transaction [Line Items]	'	'	'	'
Related Party Transaction, Expenses from Transactions with Related Party	2,143	1,148	4,118	2,189
Operating Expense [Member]	'	'	'	'
Related Party Transaction [Line Items]	'	'	'	'
Related Party Transaction, Expenses from Transactions with Related Party	$9,047	$4,620	$16,061	$8,149