Murphy USA (MUSA) 10-K27 Feb 152014 FY Annual reportFinancial data

Company Profile

Document_And_Entity_Informatio

Document And Entity Information (USD $)	12 Months Ended
Document And Entity Information (USD $)	Dec. 31, 2014	Jan. 31, 2015	Jun. 30, 2014
Document And Entity Information [Abstract]
Entity Registrant Name	Murphy USA Inc.
Trading Symbol	MUSA
Document Type	10-K
Amendment Flag	FALSE
Document Period End Date	31-Dec-14
Entity Central Index Key	1573516
Current Fiscal Year End Date	-19
Entity Filer Category	Large Accelerated Filer
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Common Stock, Shares Outstanding		45,748,418
Entity Public Float			$2,235,475,000

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current assets
Cash and cash equivalents	$328,105	$294,741	$57,373	$36,887
Accounts receivable-trade, less allowance for doubtful accounts of $4,456 in 2014 and $4,456 in 2013	140,091	193,181
Inventories, at lower of cost or market	182,914	179,055
Prepaid expenses and other current assets	14,772	15,439
Total current assets	665,882	682,416
Property, plant and equipment, at cost less accumulated depreciation and amortization of $730,202 in 2014 and $655,360 in 2013	1,253,124	1,190,723
Other assets	15,251	8,103
Total assets	1,934,257	1,881,242	1,992,465
Current liabilities
Current maturities of long-term debt		14,000
Trade accounts payable and accrued liabilities	386,999	433,228
Income taxes payable	25,600	72,146
Deferred income taxes	481	7,143
Total current liabilities	413,080	526,517
Long-term debt	492,443	547,578
Deferred income taxes	118,609	114,932
Asset retirement obligations	22,245	17,130
Deferred credits and other liabilities	29,175	18,749
Total liabilities	1,075,552	1,224,906
Stockholders' Equity
Preferred Stock, par $0.01, (authorized 20,000,000 shares, none outstanding)
Common Stock, par $0.01, (authorized 200,000,000 shares, 46,767,164 issued and 46,743,633 shares issued and outstanding at 2014 and 2013, respectively)	468	467
Treasury stock (1,056,689 shares held at December 31, 2014)	-51,073
Additional paid in capital (APIC)	557,871	548,293
Retained earnings	351,439	107,576
Total stockholders' equity	858,705	656,336	1,104,451	1,118,947
Total liabilities and stockholders' equity	$1,934,257	$1,881,242

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Consolidated Balance Sheets [Abstract]
Accounts receivable - trade, allowance for doubtful accounts	$4,456	$4,456
Property, plant and equipment, accumulated depreciation and amortization	$730,202	$655,360
Preferred stock par value	$0.01	$0.01
Preferred stock shares authorized	20,000,000	20,000,000
Preferred stock shares outstanding	0	0
Common stock par value	$0.01	$0.01
Common stock shares authorized	200,000,000	200,000,000
Common stock shares issued	46,767,164	46,743,633
Common stock shares outstanding		46,743,633
Treasury stock, shares	1,056,689

Consolidated_And_Combined_Inco

Consolidated And Combined Income Statements (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Revenues
Petroleum product sales	$14,728,527	[1]	$15,560,317	[1]	$16,854,985	[1]
Merchandise sales	2,161,378		2,159,466		2,144,347
Ethanol sales and other	320,014		363,552		301,976
Total revenues	17,209,919		18,083,335		19,301,308
Costs and operating expenses
Petroleum product cost of goods sold	14,074,579	[1]	15,009,955	[1]	16,298,316	[1]
Merchandise cost of goods sold	1,859,732		1,877,630		1,855,641
Ethanol cost of goods sold	158,276		228,899		269,168
Station and other operating expenses	521,526		493,703		480,109
Depreciation and amortization	79,234		74,130		71,740
Impairment of properties					60,988
Selling, general and administrative	120,901		132,999		113,122
Accretion of asset retirement obligations	1,200		1,096		980
Total costs and operating expenses	16,815,448		17,818,412		19,150,064
Income from operations	394,471		264,923		151,244
Other income (expense)
Interest income	244		1,099		172
Interest expense	-36,646		-14,509		-384
Gain (loss) on sale of assets	194		5,995		-1,005
Other nonoperating income	11,160		169		92
Total other income (expense)	-25,048		-7,246		-1,125
Income from continuing operations before income taxes	369,423		257,677		150,119
Income tax expense	126,341		101,351		63,705
Income from continuing operations	243,082		156,326		86,414
Income (loss) from discontinued operations, net of income taxes	781		78,707		-2,846
Net Income	$243,863		$235,033		$83,568
Earnings per share - basic:
Income from continuing operations	$5.27		$3.34		$1.85
Income (loss) from discontinued operations	$0.02		$1.68		($0.06)
Net income - basic	$5.29		$5.03		$1.79
Earnings per share - diluted:
Income from continuing operations	$5.24		$3.34		$1.85
Income (loss) from discontinued operations	$0.02		$1.68		($0.06)
Net income - diluted	$5.26		$5.02		$1.79
Weighted-average shares outstanding (in thousands):
Basic	46,104		46,743		46,743
Diluted	46,417		46,858		46,743

[1]	Includes excise taxes of: $1,930,608 $1,884,035 $1,962,660

Consolidated_And_Combined_Inco1

Consolidated And Combined Income Statements (Parenthetical) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Consolidated And Combined Income Statements [Abstract]
Excise taxes	$1,930,608,000	$1,884,035,000	$1,962,660,000

Consolidated_And_Combined_Stat

Consolidated And Combined Statements Of Cash Flows (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating Activities
Net income	$243,863	$235,033	$83,568
Adjustments to reconcile net income to net cash provided by operating activities
(Income) loss from discontinued operations, net of taxes	-781	-78,707	2,846
Depreciation and amortization	79,234	74,130	71,740
Amortization of deferred major repair costs	1,093	575	163
Deferred and noncurrent income tax charges (credits)	-1,032	-7,262	-16,463
Impairment of properties			60,988
Accretion on discounted liabilities	1,200	1,096	980
Pretax (gains) losses from sale of assets	-194	-5,995	1,005
Net decrease (increase) in noncash operating working capital	-32,466	74,865	32,553
Other operating activities - net	14,531	13,215	-1,088
Net cash provided by continuing operations	305,448	306,950	236,292
Net cash provided by discontinued operations	134	49,748	1,135
Net cash provided by operating activities	305,582	356,698	237,427
Investing Activities
Property additions	-138,888	-164,536	-104,496
Proceeds from sale of assets	376	6,113	364
Expenditures for major repairs	-1,369	-726	-250
Other investing activities - net	-10,631	52
Investing activities of discontinued operations
Sales proceeds	1,097	173,118
Other		-1,129	-7,706
Net cash provided by (required by) investing activities	-149,415	12,892	-112,088
Financing Activities
Purchase of treasury stock	-51,348
Repayments of long-term debt	-70,000	-81,170	-42
Additions to long-term debt		641,250
Cash dividend to former parent		-650,000
Debt issuance costs	-875	-6,693
Amounts related to share-based compensation	-580
Net distributions to parent		-35,609	-104,811
Net cash required by financing activities	-122,803	-132,222	-104,853
Net increase in cash and cash equivalents	33,364	237,368	20,486
Cash and cash equivalents at January 1	294,741	57,373	36,887
Cash and cash equivalents at December 31	$328,105	$294,741	$57,373

Consolidated_And_Combined_Stat1

Consolidated And Combined Statements Of Changes In Equity (USD $)	Common Stock [Member]	Treasury Stock [Member]	APIC [Member]	Net Parent Investment [Member]	Retained Earnings [Member]	Total
In Thousands, except Share data	Common Stock [Member]	Treasury Stock [Member]	APIC [Member]	Net Parent Investment [Member]	Retained Earnings [Member]	Total
Balance at Dec. 31, 2011				$1,118,947		$1,118,947
Net income				83,568		83,568
Net transfers to/between former parent				-98,064		-98,064
Balance at Dec. 31, 2012				1,104,451		1,104,451
Net income				127,457	107,576	235,033
Dividend paid to former parent				-650,000		-650,000
Net transfers to/between former parent				-36,062		-36,062
Issuance of stock at the separation and distribution	467		-467
Issuance of stock at the separation and distribution, shares	46,743,316
Reclassification of net parent investment to APIC			545,846	-545,846
Issuance of common stock, shares	317
Share-based compensation expense			2,914			2,914
Balance at Dec. 31, 2013	467		548,293		107,576	656,336
Balance, shares at Dec. 31, 2013	46,743,633					46,743,633
Net income					243,863	243,863
Purchase of treasury stock		-51,348				-51,348
Issuance of common stock	1					1
Issuance of common stock, shares	23,531
Issuance of treasury stock		275	-275
Shares withheld to satisfy tax withholdings			-582			-582
Share-based compensation expense			10,435			10,435
Balance at Dec. 31, 2014	$468	($51,073)	$557,871		$351,439	$858,705
Balance, shares at Dec. 31, 2014	46,767,164

Description_Of_Business_And_Ba

Description Of Business And Basis Of Presentation	12 Months Ended
Description Of Business And Basis Of Presentation	Dec. 31, 2014
Description Of Business And Basis Of Presentation [Abstract]
Description Of Business And Basis Of Presentation
	Note 1 — Description of Business and Basis of Presentation

	Description of business — The business of Murphy USA Inc. (“Murphy USA” or the “Company”) and its subsidiaries primarily consists of the U.S. retail marketing business that was separated from its former parent company, Murphy Oil Corporation (“Murphy Oil” ), plus certain ethanol production facilities and other assets, liabilities and operating expenses of Murphy Oil that were associated with supporting the activities of the U.S. retail marketing operations. The separation was approved by the Murphy Oil board of directors on August 7, 2013, and was completed on August 30, 2013 through the distribution of 100% of the outstanding capital stock of Murphy USA to holders of Murphy Oil common stock on the record date of August 21, 2013. Murphy Oil stockholders of record received one share of Murphy USA common stock for every four shares of Murphy Oil common stock. The spin-off was completed in accordance with a separation and distribution agreement entered into between Murphy Oil and Murphy USA. Following the separation, Murphy USA is an independent, publicly traded company, and Murphy Oil retains no ownership interest in Murphy USA.

	Murphy USA markets refined products through a network of retail gasoline stations and unbranded wholesale customers. Murphy USA’s owned retail stations are almost all located in close proximity to Walmart stores in 23 states and use the brand name Murphy USA®. Murphy USA also markets gasoline and other products at standalone stations under the Murphy Express brand. At December 31, 2014, Murphy USA had a total of 1,263 Company stations. In October 2009, Murphy USA acquired an ethanol production facility located in Hankinson, North Dakota. The facility was originally designed to produce 110 million gallons of corn-based ethanol per year. Expansion of the plant occurred during 2012, bringing the overall ethanol production capacity to 135 million gallons per year and the plant was sold in December 2013 with all its financial results now being presented as discontinued operations. The Company acquired a partially constructed ethanol production facility in Hereford, Texas, in late 2010. The Hereford facility is designed to produce 105 million gallons of corn-based ethanol per year, and it began operations near the end of the first quarter of 2011.

	The contributed assets of Murphy Oil included in the Company’s financial statements also include buildings, real estate, an airplane and computer equipment and software that are used to support the operating activities of Murphy USA.

	Basis of Presentation — Murphy USA was incorporated in March 2013 and, in connection with its incorporation, Murphy USA issued 100 shares of common stock, par value $0.01 per share, to Murphy Oil for $1.00. Murphy USA was formed solely in contemplation of the separation and until the separation was completed on August 30, 2013, it had not commenced operations and had no material assets, liabilities, or commitments. Accordingly the accompanying consolidated and combined financial statements reflect the combined historical results of operations, financial position and cash flows of the Murphy Oil subsidiaries and certain assets, liabilities and operating expenses of Murphy Oil that comprise Murphy USA, as described above, as if such companies and accounts had been combined for all periods presented prior to August 30, 2013. All significant intercompany transactions and accounts within the combined financial statements have been eliminated.

	The assets and liabilities in these consolidated and combined financial statements at December 31, 2012 have been reflected on a historical basis, as if all of the assets and liabilities presented were 100 percent owned by Murphy Oil at December 31, 2012 and represented operations of Murphy USA prior to the separation. For the period prior to separation, the consolidated and combined statements of income also include expense allocations for certain corporate functions historically performed by Murphy Oil, including allocations of general corporate expenses related to executive oversight, accounting, treasury, tax, legal, procurement and information technology. These allocations are based primarily on specific identification, headcount or computer utilization. Murphy USA’s management believes the assumptions underlying the consolidated and combined financial statements, including the assumptions regarding the allocation of general corporate expenses from Murphy Oil, are reasonable. However, these consolidated and combined financial statements may not include all of the actual expenses that would have been incurred had the Company been a stand-alone company during the period prior to separation and may not reflect the combined results of operations, financial position and cash flows had the Company been a stand-alone company during the entirety of the periods presented.

	Actual costs that would have been incurred if Murphy USA had been a stand-alone company for the period prior to separation would depend upon multiple factors, including organizational structure and strategic decisions made in various areas, including information technology and infrastructure. As a result, the consolidated and combined results of operations for the three years ended December 31, 2014, are not necessarily indicative of the results that may be experienced in the future.

Significant_Accounting_Policie

Significant Accounting Policies	12 Months Ended
Significant Accounting Policies	Dec. 31, 2014
Significant Accounting Policies [Abstract]
Significant Accounting Policies	Note 2 – Significant Accounting Policies

	PRINCIPLES OF COMBINATION – These consolidated and combined financial statements were prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) and include the accounts of Murphy USA Inc. and selected subsidiaries, and certain assets, liabilities, and expenses of Murphy Oil Corporation for all periods prior to August 30, 2013. All significant intercompany accounts and transactions within the consolidated and combined entity have been eliminated.

	REVENUE RECOGNITION – Revenues from sales of refined petroleum products are recorded when deliveries have occurred and legal ownership of the commodity transfers to the customer, which may include related party sales to other subsidiaries of Murphy USA. Title transfer for bulk refined products generally occur at pipeline custody points or upon truck loading at product terminals. Refined products sold at retail stations are recorded when the customer takes delivery at the pump. Merchandise revenues are recorded at the point of sale. Rebates from vendors are recognized as a reduction of cost of goods sold when the related inventory item is sold. Incentives that are derived from contractual provisions are accrued based on past experience, when estimable, and are recognized in cost of goods sold.

	The Company enters into buy/sell and similar arrangements when petroleum products are held at one location but are needed at a different location. The Company often pays or receives funds related to the buy/sell arrangement based on location or quality differences. The Company accounts for such transactions on a net basis in its Consolidated and Combined Income Statements.

	SHIPPING AND HANDLING COSTS – Costs incurred for the shipping and handling of motor fuel are included in Petroleum product cost of goods sold in the income statement. Costs incurred for the shipping and handling of convenience store merchandise are included in Merchandise cost of goods sold in the income statement.

	TAXES COLLECTED FROM CUSTOMERS AND REMITTED TO GOVERNMENT AUTHORITIES – Excise and other taxes collected on sales of refined products and remitted to governmental agencies are included in revenues and costs and operating expenses in the Consolidated and Combined Income Statements. Excise taxes on petroleum products collected and remitted were $1,930,608,000 in 2014, $1,884,035,000 in 2013, and $1,962,660,000 in 2012.

	CASH EQUIVALENTS – Short-term investments, which include government securities, money market funds and other instruments with government securities as collateral, that have an original maturity of three months or less from the date of purchase are classified as cash equivalents.

	ACCOUNTS RECEIVABLE – The Company’s accounts receivable are recorded at the invoiced amount and do not bear interest. The accounts receivable primarily consists of amounts owed to the Company from credit card companies and by customers for wholesale sales of refined petroleum products and ethanol. The allowance for doubtful accounts is the Company’s best estimate of the amount of probable credit losses on these receivables. The Company reviews this allowance for adequacy at least quarterly and bases its assessment on a combination of current information about its customers and historical write-off experience. Any trade accounts receivable balances written off are charged against the allowance for doubtful accounts. The Company has not experienced any significant credit-related losses in the past three years.

	INVENTORIES – Inventories of most finished products are valued at the lower of cost, generally applied on a last-in, first-out (“LIFO”) basis, or market. Any increments to LIFO inventory volumes are valued based on the first purchase price for these volumes during the year. Merchandise inventories held for resale are carried at average cost. Materials and supplies are valued at the lower of average cost or estimated value. Wet distillers grain with solubles (“WDGS”) and corn inventories are valued at the lower of cost, applied on a first-in, first-out (“FIFO”) basis, or market.

	VENDOR ALLOWANCES AND REBATES – Murphy USA receives payments for vendor allowances, volume rebates and other related payments from various suppliers of its convenience store merchandise. Vendor allowances for price markdowns are credited to merchandise cost of goods sold during the period the related markdown is recognized. Volume rebates of merchandise are recorded as reductions to merchandise cost of goods sold when the merchandise qualifying for the rebate is sold. Slotting and stocking allowances received from a vendor are recorded as a reduction to cost of sales over the period covered by the agreement.

	PROPERTY, PLANT AND EQUIPMENT – Additions to property, plant and equipment, including renewals and betterments, are capitalized and recorded at cost. Certain marketing facilities are primarily depreciated using the composite straight-line method with depreciable lives ranging from 16 to 25 years. Ethanol plants, gasoline stations and other assets are depreciated over 3 to 50 years by individual unit on the straight-line method. Gains and losses on asset disposals or retirements are included in income as a separate component of other income.
	IMPAIRMENT OF ASSETS – Long-lived assets, which include property and equipment and finite-lived intangible assets, are tested for recoverability whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable. A long-lived asset is not recoverable if its carrying amount exceeds the sum of the undiscounted cash flows expected to result from its use and eventual disposition. If a long-lived asset is not recoverable, an impairment loss is recognized for the amount by which the carrying amount of the long-lived asset exceeds its fair value, with fair value determined based on discounted estimated net cash flows or other appropriate methods.
	TURNAROUNDS – Primary processing units are scheduled for major maintenance activities known as turnarounds at periodic intervals at the Company’s ethanol plant. Turnaround work associated with various other less significant units at the Company’s facilities will vary depending on operating requirements and events. The Company defers turnaround costs incurred and amortizes such costs through Station and other operating expenses over the period until the next scheduled turnaround. All other maintenance and repairs are expensed as incurred.
	ASSET RETIREMENT OBLIGATIONS – The Company records a liability for asset retirement obligations (“ARO”) equal to the fair value of the estimated cost to retire an asset. The ARO liability is initially recorded in the period in which the obligation meets the definition of a liability, which is generally when the asset is placed in service. The ARO liability is estimated using existing regulatory requirements and anticipated future inflation rates. When the liability is initially recorded, the Company increases the carrying amount of the related long-lived asset by an amount equal to the original liability. The liability is increased over time to reflect the change in its present value, and the capitalized cost is depreciated over the useful life of the related long-lived asset. The Company reevaluates the adequacy of its recorded ARO liability at least annually. Actual costs of asset retirements such as dismantling service stations and site restoration are charged against the related liability. Any difference between costs incurred upon settlement of an asset retirement obligation and the recorded liability is recognized as a gain or loss in the Company’s earnings.
	ENVIRONMENTAL LIABILITIES – A liability for environmental matters is established when it is probable that an environmental obligation exists and the cost can be reasonably estimated. If there is a range of reasonably estimated costs, the most likely amount will be recorded, or if no amount is most likely, the minimum of the range is used. Related expenditures are charged against the liability. Environmental remediation liabilities have not been discounted for the time value of future expected payments. Environmental expenditures that have future economic benefit are capitalized.
	INCOME TAXES – The Company accounts for income taxes using the asset and liability method. Under this method, income taxes are provided for amounts currently payable and for amounts deferred as tax assets and liabilities based on differences between the financial statement carrying amounts and the tax bases of existing assets and liabilities. Deferred income taxes are measured using the enacted tax rates that are assumed will be in effect when the differences reverse. The Company routinely assesses the realizability of deferred tax assets based on available evidence including assumptions of future taxable income, tax planning strategies and other pertinent factors. A deferred tax asset valuation allowance is recorded when evidence indicates that it is more likely than not that all or a portion of these deferred tax assets will not be realized in a future period. The accounting rules for income tax uncertainties permit recognition of income tax benefits only when they are more likely than not to be realized. The Company includes potential penalties and interest for uncertain income tax positions in income tax expense.

	The Company’s results of operations were included in the consolidated federal income tax return of Murphy Oil prior to the separation, while in most cases, these results have been included in the various state tax returns of Murphy USA historically. For these financial statements, federal and state income taxes have been computed and recorded as if the Company filed separate federal and state income tax returns. Federal and state income tax benefits of operating losses generated are recognized to the extent that they could be expected to reduce federal income tax expense for the Company via a carryback to a previous year or carried forward for use in a subsequent year. The calculations of current and deferred income taxes, therefore, require use of certain assumptions, allocations and estimates that management believes are reasonable to reflect the Company’s income taxes as a stand-alone taxpayer. The Company has elected to classify any interest expense and penalties related to the underpayment of income taxes in Income tax expense in the Consolidated and Combined Income Statements.
	DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES – The fair value of a derivative instrument is recognized as an asset or liability in the Company’s Consolidated and Combined Balance Sheets. Upon entering into a derivative contract, the Company may designate the derivative as either a fair value hedge or a cash flow hedge, or decide that the contract is not a hedge, and therefore, recognize changes in the fair value of the contract in earnings. The Company documents the relationship between the derivative instrument designated as a hedge and the hedged items as well as its objective for risk management and strategy for use of the hedging instrument to manage the risk. Derivative instruments designated as fair value or cash flow hedges are linked to specific assets and liabilities or to specific firm commitments or forecasted transactions. The Company assesses at inception and on an ongoing basis whether a derivative instrument used as a hedge is highly effective in offsetting changes in the fair value or cash flows of the hedged item. A derivative that is not a highly effective hedge does not qualify for hedge accounting. Changes in the fair value of a qualifying fair value hedge are recorded in earnings along with the gain or loss on the hedged item. Changes in the fair value of a qualifying cash flow hedge are recorded in other comprehensive income until the hedged item is recognized in earnings. When the income effect of the underlying cash flow hedged item is recognized in the Statement of Income, the fair value of the associated cash flow hedge is reclassified from other comprehensive income into earnings. Ineffective portions of a cash flow hedge derivative’s change in fair value are recognized currently in earnings. If a derivative instrument no longer qualifies as a cash flow hedge and the underlying forecasted transaction is no longer probable of occurring, hedge accounting is discontinued and the gain or loss recorded in other comprehensive income is recognized immediately in earnings. See Note 13 and Note 16 for further information about the Company’s derivatives.
	STOCK-BASED COMPENSATION – The fair value of awarded stock options, restricted stock and restricted stock units is determined based on a combination of management assumptions for awards issued subsequent to the separation from Murphy Oil and the previously calculated fair market value of awards that were replaced with Murphy USA awards in connection with the separation. Murphy Oil used the Black-Scholes option pricing model for computing the fair value of stock options. The primary assumptions made by management included the expected life of the stock option award and the expected volatility of Murphy Oil’s common stock prices. Murphy Oil used both historical data and current information to support its assumptions. Stock option expense is recognized on a straight-line basis over the respective vesting period of two or three years. Murphy Oil used a Monte Carlo valuation model to determine the fair value of performance-based restricted stock and restricted stock units and the related expense is recognized over the three-year vesting period. Management estimates the number of stock options and performance-based restricted stock and restricted stock units that will not vest and adjusts its compensation expense accordingly. Differences between estimated and actual vested amounts are accounted for as an adjustment to expense when known. See Note 11 for a discussion of the basis of allocation of such costs.
	NET INVESTMENT BY FORMER PARENT– The Net investment by former parent represented a net balance reflecting Murphy Oil’s initial investment in the Company and subsequent adjustments resulting from the operations of the Company and various transactions between the Company and Murphy Oil. The balance is the result of the Company’s participation in Murphy Oil’s centralized cash management program under which all the Company’s cash receipts were remitted to Murphy Oil and all cash disbursements are funded by Murphy Oil. The net balance included amounts due from or owed to Murphy Oil. Other transactions affecting the Net investment by Murphy Oil included general and administrative expenses incurred by Murphy Oil and allocated to the Company. There were no terms of settlement or interest charges associated with the Net investment by Murphy Oil balance. Changes in amounts owed to or due from Murphy Oil were included in financing activities in the Statements of Cash Flows. All transactions affecting the balance of this account ceased at the separation.

	USE OF ESTIMATES – In preparing the financial statements of the Company in conformity with U.S. GAAP, management has made a number of estimates and assumptions related to the reporting of assets, liabilities, revenues, and expenses and the disclosure of contingent assets and liabilities. Actual results may differ from the estimates. On an ongoing basis, we review our estimates based on currently available information. Changes in facts and circumstances may result in revised estimates.

RelatedParty_Transactions

Related-Party Transactions	12 Months Ended
Related-Party Transactions	Dec. 31, 2014
Related-Party Transactions [Abstract]
Related-Party Transactions
	Note 3 — Related-Party Transactions

	Related-party transactions of the Company include the allocation of certain general and administrative costs from Murphy Oil to the Company and payment of interest expense to or receipt of interest income from Murphy Oil for intercompany payables balances for periods prior to the separation.

	General and administrative costs were charged by Murphy Oil to the Company based on management’s determination of such costs attributable to the operations of the Company. However, such related-party transactions cannot be presumed to be carried out on an arm’s length basis as the requisite conditions of competitive, free-market dealings may not exist.

	Prior to the separation, Murphy Oil provided cash management services to the Company. As a result, the Company generally remitted funds received to Murphy Oil, and Murphy Oil paid all operating and capital expenditures on behalf of the Company. Such cash transactions were reflected in the change in the Net Investment by Parent.

	The Consolidated and Combined Income Statements include expense allocations for certain functions provided to the Company by Murphy Oil prior to the separation. If possible, these allocations were made on a specific identification basis. Otherwise, the expenses related to services provided to the Company by Murphy Oil were allocated to Murphy USA based on relative percentages of headcount or other appropriate methods depending on the nature of each type of cost to be allocated.

	Charges for functions historically provided to the Company by Murphy Oil were primarily attributable to Murphy Oil’s performance of many shared services that the Company benefitted from, such as treasury, tax, accounting, risk management, legal, internal audit, procurement, human resources, investor relations and information technology. Murphy USA also participated in certain Murphy Oil insurance, benefit and incentive plans. The Consolidated and Combined Income Statements reflect charges from Murphy Oil and its other subsidiaries for these services of $0, $53,161,000 and $70,056,000 for the three years ended December 31, 2014, 2013 and 2012, respectively. Included in the charges above are amounts recognized for stock-based compensation expense (Note 11), as well as net periodic benefit expense associated with Murphy Oil’s retirement plans (Note 12).

	Included in Interest income in the Consolidated and Combined Income Statements for the three years ended December 31, 2014, 2013 and 2012 was interest income from affiliates of $0, $1,080,000 and $156,000, respectively. These amounts were paid on balances that were previously intercompany prior to the separation from Murphy Oil and were settled in full at the separation date.

	Transition Services Agreement

	In conjunction with the separation, we entered into a Transition Services Agreement with Murphy Oil on August 30, 2013. This Transition Services Agreement sets forth the terms on which Murphy Oil provides to us, and we provide to Murphy Oil, on a temporary basis, certain services or functions that the companies have historically shared. Transition services include administrative, payroll, human resources, information technology and network transition services, tax, treasury and other support and corporate services. The Transition Services Agreement provides for the provision of specified transition services generally for a period of up to eighteen months, with a possible extension of six months, on a cost basis. We record the fee Murphy Oil charges us for these services as a component of general and administrative expenses.

	We believe that the operating expenses and general and administrative expenses allocated to us and included in the accompanying consolidated and combined income statements were a reasonable approximation of the costs related to Murphy USA’s operations. However, such related-party transactions cannot be presumed to be carried out on an arm’s-length basis as the terms were negotiated while Murphy USA was still a subsidiary of Murphy Oil. At December 31, 2014 Murphy USA had a current receivable from Murphy Oil of $1,737,000 and a payable to Murphy Oil of $56,000 related to the Transition Services Agreement.

Discontinued_Operations

Discontinued Operations	12 Months Ended
Discontinued Operations	Dec. 31, 2014
Discontinued Operations [Abstract]
Discontinued Operations
	Note 4 – Discontinued Operations

	In November 2013, the Company announced that it had entered into negotiations to sell its Hankinson, North Dakota ethanol production facility as part of management’s strategic plan to exit non-core businesses. On December 19, 2013, the Company sold its wholly-owned subsidiary Hankinson Renewable Energy, LLC which owned and operated an ethanol manufacturing facility in Hankinson, North Dakota, and its related assets for $170,000,000 plus working capital adjustments of approximately $3,118,000. During January 2014, the final adjustments to working capital were made and the Company received an additional $1.1 million in sales proceeds which has been included in discontinued operations for the period. The Company has accounted for all operations related to Hankinson Renewable, LLC as discontinued operations for all periods presented. The after-tax gain from disposal of the subsidiary (including associated inventories) was $52,542,000 in 2013 with an additional $781,000 in 2014 related to the final working capital adjustment.

	The results of operations associated with the Hankinson discontinued operations are presented in the following table.



	(Thousands of dollars)	2014		2013		2012
	Revenues	$	—	$	366,707	$	354,128
	Income (loss) from operations before income taxes		—		40,130		-4,377
	Gain on sale before income taxes		1,202		80,834		—
	Total income (loss) from discontinued operations before taxes		1,202		120,964		-4,377
	Provision for income taxes		421		42,257		-1,531
	Income (loss) from discontinued operations	$	781	$	78,707	$	-2,846

Inventories

Inventories	12 Months Ended
Inventories	Dec. 31, 2014
Inventories [Abstract]
Inventories

	Note 5 — Inventories

	Inventories consisted of the following:



		December 31,
	(Thousands of dollars)	2014		2013
	Finished products - FIFO basis	$	205,213	$	372,531
	Less LIFO - finished products		-144,283		-307,706
	Finished products - LIFO basis		60,930		64,825
	Store merchandise for resale		98,712		97,058
	Corn based products		17,873		12,447
	Materials and supplies		5,399		4,725
	Total inventories	$	182,914	$	179,055

	At December 31, 2014 and 2013, the replacement cost (market value) of last-in, first-out (LIFO) inventories exceeded the LIFO carrying value by $144,283,000 and $307,706,000, respectively. Corn based products consisted primarily of corn and wet distillers’ grains with solubles (WDGS), and were all valued on a first-in, first-out (FIFO) basis.

	In 2014, inventories valued at LIFO incurred a decrement that resulted in a benefit of $19,512,000 on income from continuing operations before income tax. In 2013, inventories valued at LIFO incurred a decrement that resulted in a charge to earnings while 2012 had a decrement that led to a benefit. The total LIFO impact to income from continuing operations before income tax was a decrease of $13,472,000 and an increase of $2,526,000 at December 31, 2013 and 2012, respectively.

Property_Plant_And_Equipment

Property, Plant And Equipment	12 Months Ended
Property, Plant And Equipment	Dec. 31, 2014
Property, Plant And Equipment [Abstract]
Property, Plant And Equipment	Note 6 – Property, Plant and Equipment



			31-Dec-14			31-Dec-13
	(Thousands of dollars)	Estimated Useful Life		Cost	Net		Cost	Net
	Land		$	527,642	527,642		520,026	520,026
	Ethanol facilities	20 years		70,802	4,481		67,284	1,082
	Pipeline and terminal facilities	16 to 25 years		88,447	36,384		85,907	36,114
	Retail gasoline stations	3 to 50 years		1,229,582	662,954		1,110,340	611,132
	Buildings	20 to 45 years		18,160	8,328		17,829	8,608
	Other	3 to 20 years		48,693	13,335		44,697	13,761
			$	1,983,326	1,253,124		1,846,083	1,190,723

	At year-end 2012, the Company wrote down its net investment in the ethanol production facility in Hereford, Texas, taking a pre-tax impairment charge of $60,988,000. The write down was required based on expected weak ethanol production margins at the plant in future periods. Fair value was determined using a discounted cash flow model for three years, plus an estimated terminal value based on a multiple of the last year’s cash flow. Certain key assumptions used in the cash flow model included use of available futures prices for corn and ethanol products. Additional key assumptions included estimated future ethanol and distillers’ grain production levels, estimated future operating expenses, and estimated sales prices for distillers’ grain.

Accounts_Payable_And_Accrues_L

Accounts Payable And Accrues Liabilities	12 Months Ended
Accounts Payable And Accrues Liabilities	Dec. 31, 2014
Accounts Payable And Accrued Liabilities [Abstract]
Accounts Payable And Accrued Liabilities
	Note 7 – Accounts Payable and Accrued Liabilities

	Trade accounts payable and accrued liabilities consisted of the following:



		December 31,
	(Thousands of dollars)	2014		2013
	Trade accounts payable	$	230,919		311,397
	Excise taxes/withholdings payable		71,273		55,882
	Accrued insurance obligations		19,621		17,247
	Other		65,186		48,702
	Accounts payable and accrued liabilities	$	386,999		433,228

LongTerm_Debt

Long-Term Debt	12 Months Ended
	Dec. 31, 2014
Long-Term Debt [Abstract]
Long-Term Debt	Note 8 — Long-Term Debt

	Long-term debt consisted of the following:


			December 31,
	(Thousands of dollars)		2014		2013
	6% senior notes due 2023 (net of unamortized discount of $7,557 at 2014 and $8,422 at 2013)		$	492,443	$	491,578
	Term loan due 2016 (effective rate of 3.71% at December 31, 2013)			—		70,000
	Less current maturities			—		-14,000
	Total long-term debt		$	492,443	$	547,578

	Senior Notes

	On August 14, 2013, Murphy Oil USA, Inc., our primary operating subsidiary, issued 6.00% Senior Notes due 2023 (the “Senior Notes”) in an aggregate principal amount of $500 million. The Senior Notes are fully and unconditionally guaranteed by Murphy USA, and are guaranteed by certain 100% owned subsidiaries that guarantee our credit facilities. The indenture governing the Senior Notes contains restrictive covenants that limit, among other things, the ability of Murphy USA, Murphy Oil USA, Inc. and the restricted subsidiaries to incur additional indebtedness or liens, dispose of assets, make certain restricted payments or investments, enter into transactions with affiliates or merge with or into other entities.

	The Senior Notes and the guarantees rank equally with all of our and the guarantors’ existing and future senior unsecured indebtedness and effectively junior to our and the guarantors’ existing and future secured indebtedness (including indebtedness with respect to the credit facilities) to the extent of the value of the assets securing such indebtedness. The Senior Notes are structurally subordinated to all of the existing and future third-party liabilities, including trade payables, of our existing and future subsidiaries that do not guarantee the notes.

	We used the net proceeds of the Senior Notes, together with borrowings under the credit facilities, to finance a cash dividend of $650 million from Murphy Oil USA, Inc. to Murphy Oil paid in connection with the Separation.

	On June 17, 2014, we closed an exchange offer for our Senior Notes to make them eligible for public resale, as required by a registration rights agreement entered into in connection with the issuance of the Senior Notes. All of the Senior Notes were tendered for exchange.

	Credit Facilities

	On August 30, 2013, we entered into a credit agreement, which provides for a committed $450 million asset-based loan (ABL) facility (with availability subject to the borrowing base described below) and a $150 million term facility. It also provides for a $200 million uncommitted incremental facility. On August 30, 2013, Murphy Oil USA, Inc. borrowed $150 million under the term facility, the proceeds of which were used, together with the net proceeds of the offering of the Senior Notes, to finance the $650 million cash dividend from Murphy USA Inc. to Murphy Oil. The term facility was repaid in full in May 2014. On September 2, 2014, we amended the credit agreement to extend the maturity date to September 2, 2019 and amend the terms of the various covenants.

	The borrowing base is expected, at any time of determination, to be an amount (net of reserves) equal to the sum of:

		·		100% of eligible cash at such time, plus
		·		90% of eligible credit card receivables at such time, plus
		·		90% of eligible investment grade accounts, plus
		·		85% of eligible other accounts, plus
		·		80% of eligible product supply/wholesale refined products inventory at such time, plus
		·		75% of eligible retail refined products inventory at such time, plus

	the lesser of (i) 70% of the average cost of eligible retail merchandise inventory at such time and (ii) 85% of the net orderly liquidation value of eligible retail merchandise inventory at such time.

	The ABL facility includes a $75 million sublimit on swingline loans and a $200 million sublimit for the issuance of letters of credit. Swingline loans and letters of credit issued under the ABL facility reduce availability under the ABL facility.

	Interest payable on the credit facilities is based on either:

		·		the London interbank offered rate, adjusted for statutory reserve requirements (the “Adjusted LIBO Rate”); or
		·		the Alternate Base Rate, which is defined as the highest of (a) the prime rate, (b) the federal funds effective rate from time to time plus 0.50% per annum and (c) the one-month Adjusted LIBO Rate plus 1.00% per annum,

	plus, (A) in the case Adjusted LIBO Rate borrowings, (i) with respect to the ABL facility, spreads ranging from 1.50% to 2.00% per annum depending on the average availability under the ABL facility or (ii) with respect to the term facility, spreads ranging from 2.75% to 3.00% per annum depending on a secured debt to EBITDA ratio and (B) in the case of Alternate Base Rate borrowings, (i) with respect to the ABL facility, spreads ranging from 0.50% to 1.00% per annum depending on the average availability under the ABL facility or (ii) with respect to the term facility, spreads ranging from 1.75% to 2.00% per annum depending on a secured debt to EBITDA ratio.

	The interest rate period with respect to the Adjusted LIBO Rate interest rate option can be set at one-, two-, three-, or six-months as selected by us in accordance with the terms of the credit agreement.

	We were obligated to make quarterly principal payments on the outstanding principal amount of the term facility beginning on the first anniversary of the effective date of the credit agreement in amounts equal to 10% of the term loans made on such effective date, with the remaining balance payable on the scheduled maturity date of the term facility. Borrowings under the credit facilities are prepayable at our option without premium or penalty. We were also required to prepay the term facility with the net cash proceeds of certain asset sales or casualty events, subject to certain exceptions. The credit agreement also includes certain customary mandatory prepayment provisions with respect to the ABL facility.

	The credit agreement contains certain covenants that limit, among other things, the ability of us and our subsidiaries to incur additional indebtedness or liens, to make certain investments, to enter into sale-leaseback transactions, to make certain restricted payments, to enter into consolidations, mergers or sales of material assets and other fundamental changes, to transact with affiliates, to enter into agreements restricting the ability of subsidiaries to incur liens or pay dividends, or to make certain accounting changes. In addition, the credit agreement requires us to maintain a fixed charge coverage ratio of a minimum of 1.0 to 1.0 when availability for at least three consecutive business days is less than the greater of (a) 17.5% of the lesser of the aggregate ABL facility commitments and the borrowing base and (b) $70,000,000 (including as of the most recent fiscal quarter end on the first date when availability is less than such amount). As of December 31, 2014, our fixed charge coverage ratio was 1.30. Prior to the repayment of the term loan, we were also subject to a maximum secured debt to EBITDA ratio of 4.5 to 1.0 at any time when term facility commitments or term loans thereunder were outstanding.

	After giving effect to the applicable restrictions on certain payments, which could include dividends under the credit agreement (which restrictions are only applicable when availability under the credit agreement does not exceed the greater of 25% of the lesser of the revolving commitments and the borrowing base and $100 million (and if availability under the credit agreement does not exceed the greater of 40% of the lesser of the revolving commitments and the borrowing base and $150 million, then our fixed charge coverage ratio must be at least 1.0 to 1.0)) and the indenture, and subject to compliance with applicable law. As of December 31, 2014, the Company had approximately $107.5 million of its net income and retained earnings free of such restrictions.

	All obligations under the credit agreement are guaranteed by Murphy USA and the subsidiary guarantors party thereto, and all obligations under the credit agreement, including the guarantees of those obligations, are secured by certain assets of Murphy USA, Murphy Oil USA, Inc. and the guarantors party thereto.

Asset_Retirement_Obligations_A

Asset Retirement Obligations (ARO)	12 Months Ended
Asset Retirement Obligations (ARO)	Dec. 31, 2014
Asset Retirement Obligations (ARO) [Abstract]
Asset Retirement Obligations (ARO)	Note 9 — Asset Retirement Obligations (ARO)
	The majority of the ARO recognized by the Company at December 31, 2014 and 2013 related to the estimated costs to dismantle and abandon certain of its retail gasoline stations. The Company has not recorded an ARO for certain of its marketing assets because sufficient information is presently not available to estimate a range of potential settlement dates for the obligation. These assets are consistently being upgraded and are expected to be operational into the foreseeable future. In these cases, the obligation will be initially recognized in the period in which sufficient information exists to estimate the obligation.
	A reconciliation of the beginning and ending aggregate carrying amount of the ARO is shown in the following table.



		December 31,
	(Thousands of dollars)	2014		2013
	Balance at beginning of period	$	17,130		15,401
	Accretion expense		1,200		1,096
	Liabilities incurred		3,915		633
	Balance at end of period	$	22,245		17,130

	The estimation of future ARO is based on a number of assumptions requiring professional judgment. The Company cannot predict the type of revisions to these assumptions that may be required in future periods due to the lack of availability of additional information.

Income_Taxes

Income Taxes	12 Months Ended
Income Taxes	Dec. 31, 2014
Income Taxes [Abstract]
Income Taxes
	Note 10 — Income Taxes

	The components of income from continuing operations before income taxes for each of the three years ended December 31, 2014 and income tax expense (benefit) attributable thereto were as follows:



			Years Ended December 31,
	(Thousands of dollars)		2014		2013		2012
	Income (loss) from continuing operations before income taxes		$	369,423		257,677		150,119
	Income tax expense (benefit)
	Federal - Current		$	125,742		89,700		64,059
	Federal - Deferred			2,989		-4,761		-17,098
	State - Current and deferred			-2,390		16,412		16,744
	Total		$	126,341		101,351		63,705

	The following table reconciles income taxes based on the U.S. statutory tax rate to the Company’s income tax expense.



			Years Ended December 31,
	(Thousands of dollars)		2014		2013		2012
	Income tax expense based on the U.S. statutory tax rate		$	129,298		90,187		52,542
	State income taxes, net of federal benefit			-1,554		10,668		10,884
	Other, net			-1,403		496		279
	Total		$	126,341		101,351		63,705

	An analysis of the Company’s deferred tax assets and deferred tax liabilities at December 31, 2014 and 2013 showing the tax effects of significant temporary differences follows:



			Years Ended December 31,
	(Thousands of dollars)		2014		2013
	Deferred tax assets
	Property costs		$	1,692		6,456
	Asset retirement obligations			465		5,844
	Employee benefits			9,712		3,090
	Other deferred tax assets			8,995		6,389
	Total gross deferred tax assets			20,864		21,779
	Less valuation allowance			—		—
	Net deferred tax assets			20,864		21,779
	Deferred tax liabilities
	Accumulated depreciation and amortization			-114,262		-115,737
	State deferred taxes			-16,855		-16,423
	Other deferred tax liabilities			-8,837		-11,694
	Total gross deferred tax liabilities			-139,954		-143,854
	Net deferred tax liabilities		$	-119,090		-122,075

	In management’s judgment, the net deferred tax assets in the preceding table will more likely than not be realized as reductions of future taxable income or by utilizing available tax planning strategies.

	Murphy Oil’s tax returns in multiple jurisdictions that include the Company are subject to audit by taxing authorities. These audits often take years to complete and settle. As of December 31, 2014, the earliest year remaining open for Federal audit and/or settlement is 2010 and for the states it ranges from 2008-2011. Although the Company believes that recorded liabilities for unsettled issues are adequate, additional gains or losses could occur in future periods from resolution of outstanding unsettled matters.

	The FASB’s rules for accounting for income tax uncertainties clarify the criteria for recognizing uncertain income tax benefits and require additional disclosures about uncertain tax positions. Under U.S. GAAP the financial statement recognition of the benefit for a tax position is dependent upon the benefit being more likely than not to be sustainable upon audit by the applicable taxing authority. If this threshold is met, the tax benefit is then measured and recognized at the largest amount that is greater than 50 percent likely of being realized upon ultimate settlement. Liabilities associated with uncertain income tax positions are included in Deferred Credits and Other Liabilities in the Consolidated Balance Sheet. A reconciliation of the beginning and ending amount of the consolidated liability for unrecognized income tax benefits during the year ended December 31, 2014 is shown in the following table. No uncertain tax position liabilities were recognized for the two years ending December 31, 2013.



			Year Ended December 31,
	(Thousands of dollars)		2014

	Balance at January 1		$	—
	Additions for tax positions related to prior year			10,086
	Additions for tax positions related to current year			77
	Settlements with taxing authorities			-1,563
	Expiration of statutes of limitation			-2,499

Balance at December 31		$	6,101

All additions or reductions to the above liability affect the Company’s effective tax rate in the respective period of change. The Company accounts for any applicable interest and penalties on uncertain tax positions as a component of income tax expense. Income tax expense for the years ended December 31, 2014, 2013 and 2012 included net benefits for interest and penalties of $1,143,000, $0 and $0, respectively, associated with uncertain tax positions.

During the next twelve months, the Company currently expects to add immaterial amounts to the liability for uncertain taxes for 2015 events. Although existing liabilities could be reduced by settlement with taxing authorities or lapse due to statute of limitations, the Company believes that the changes in its unrecognized tax benefits due to these events will not have a material impact on the Consolidated and Combined Income Statements during 2015.

Incentive_Plans

Incentive Plans	12 Months Ended
Incentive Plans	Dec. 31, 2014
Incentive Plans [Abstract]
Incentive Plans
	Note 11 — Incentive Plans
	Prior to the separation, our employees participated in the Murphy Oil 2007 Long-Term Incentive Plan (the “2007 Plan”) and the Murphy Oil 2012 Long-Term Incentive Plan (the “2012 Plan”) and received Murphy Oil restricted stock awards and options to purchase shares of Murphy Oil common stock. While participating in these two plans, costs resulting from share-based payment transactions were allocated and recognized as an expense in the financial statements using a fair value-based measurement method over the periods that the awards vested. Certain employees of the Company have received annual grants in the form of Murphy Oil stock options, restricted stock units and other forms of share-based payments prior to the separation. Accordingly, the Company has accounted for expense for these plans in accordance with SAB Topic 1-B for periods prior to the separation.

	2013 Long-Term Incentive Plan
	Effective August 30, 2013, certain of our employees began to participate in the Murphy USA 2013 Long-Term Incentive Plan, which was subsequently amended and restated effective as of February 12, 2014 (the “MUSA 2013 Plan”). The MUSA 2013 Plan authorizes the Executive Compensation Committee of our Board of Directors (“the Committee”) to grant non-qualified or incentive stock options, stock appreciation rights, stock awards (including restricted stock and restricted stock unit awards), cash awards, and performance awards to our employees. Prior to the amendment and restatement of the MUSA 2013 Plan on February 12, 2014, 10 million shares of MUSA common stock were authorized to be delivered under the MUSA 2013 Plan over the life of the plan. Pursuant to the amendment and restatement of the plan effective as of February 12, 2014, this was reduced to 5.5 million shares of common stock. No more than 1 million shares of common stock may be awarded to any one employee, subject to adjustment for changes in capitalization. The maximum cash amount payable pursuant to any “performance-based” award to any participant in any calendar year is $5 million.
	In connection with the separation, stock compensation awards granted under the 2007 Plan and the 2012 Plan by Murphy Oil (pre-separation awards) were adjusted or substituted as follows:
		·		Vested stock options were equitably adjusted so that the grantee holds more options to purchase Murphy Oil common stock at a lower strike price.
		·		Unvested stock options and stock appreciation rights held by MUSA employees were replaced with substitute awards of options to purchase shares of MUSA common stock.
		·		Unvested restricted stock units will be replaced with adjusted, substitute awards for restricted stock units of MUSA common stock. The new awards of restricted stock are intended to generally preserve the intrinsic value of the original award determined as of the separation and distribution date.
		·		Vesting periods of awards were unaffected by the adjustment and substitution, except that for vested Murphy Oil stock options the MUSA employees have until the earlier of two years from the date of the separation or the stated expiration date of the option to exercise the award.

	Awards granted in connection with the adjustment and substitution of awards originally issued under the 2007 Plan and the 2012 Plan are a part of the MUSA 2013 Plan and reduce the maximum number of shares of common stock available for delivery under the MUSA 2013 Plan. During the period from August 30 to December 31, 2014, the Company granted a total of 1,276,548 awards from the MUSA 2013 Plan which leaves 4,280,895 remaining shares to be granted in future years (after consideration of the amendments made to the MUSA 2013 Plan in February 2014 by the Board of Directors).

	2013 Stock Plan for Non-employee Directors

	Effective August 8, 2013, Murphy USA adopted the 2013 Murphy USA Stock Plan for Non-employee Directors (the “Directors Plan”). The directors for Murphy USA are compensated with a mixture of cash payments and equity-based awards. Awards under the Directors Plan may be in the form of restricted stock, restricted stock units, stock options, or a combination thereof. An aggregate of 500,000 shares of common stock shall be available for issuance of grants under the Directors Plan. Since 2013, 50,850 time-based restricted stock units have been granted under the terms of the Directors Plan which leaves 449,150 shares available to be granted in the future.
	Amounts recognized in the financial statements by the Company with respect to all share-based plans are shown in the following table. All expense prior to August 30, 2013 was incurred under the 2007 Plan and the 2012 Plan while all amounts after August 30, 2013 were incurred in the MUSA 2013 Plan and the Directors Plan.




			Years Ended December 31,
	(Thousands of dollars)		2014			2013		2012
	Compensation charged against income before income tax benefit		$	10,435			9,391		8,416
	Related income tax benefit recognized in income			3,652			3,287		2,946
	As of December 31, 2014, there was $13,471,000 in compensation costs to be expensed over approximately the next 2.7 years related to unvested share-based compensation arrangements granted by the Company or its predecessor. Total income tax benefits realized by Murphy Oil from tax deductions related to stock option exercises under share-based payment arrangements previously issued by Murphy Oil Corporation were $0, $625,000, and $1,851,000 for the years ended December 31, 2014, 2013 and 2012, respectively. Cash received from options exercised under all share-based payment arrangements for the years ended December 31, 2014, 2013 and 2012 was $581,000, $0 and $0 as no awards had vested prior to February 2014. Total income tax benefits realized from tax deductions related to stock option exercises under share-based payment arrangements were $470,000 for the year ended December 31, 2014.
	STOCK OPTIONS – The Committee fixes the option price of each option granted at no less than fair market value (FMV) on the date of the grant and fixes the option term at no more than seven years from such date. Each option granted through December 31, 2013 under the MUSA 2013 Plan was nonqualified and was issued to replace awards of Murphy Oil that were previously granted to employees of the Company prior to the separation from Murphy Oil. The remaining term of each option granted mirrored the remaining term of the original award that it replaced and the exercise price was adjusted based on the terms of the Employee Matters Agreement entered into between the Company and Murphy Oil in connection with the separation. Post separation in 2013, the only awards issued were to replace the unvested awards of Murphy Oil that were forfeited in conjunction with the separation. Therefore, the accounting for those awards was a continuation of the Murphy Oil fair value that was previously calculated using the Black-Scholes pricing model and used the following original assumptions to calculate the fair value used for expense purposes. Following are the assumptions used originally by Murphy Oil to value the original awards.


		Years ended December 31,
		2012 and 2011
	Fair value per option grant	$	12.37 - 20.34
	Assumptions
	Dividend yield		1.80% - 2.27%
	Expected volatility		37.00% - 39.62%
	Risk-free interest rate		0.55% - 2.10%
	Expected life		4.00 yrs. - 5.20 yrs.

	As a result of the separation from Murphy Oil, the unvested Murphy Oil options were replaced with an appropriate number of Company options bearing an exercise price that was adjusted to preserve the intrinsic value near the date of the separation in connection with the terms of the Employee Matters Agreement. The grant date fair values of the options replaced with MUSA 2013 Plan awards range from $32.53 to $40.25. Because of these adjustments, no further Black-Scholes fair values were required to be calculated for the post separation period. The adjustment and substitution of the stock compensation awards occurred in conjunction with the distribution of MUSA common stock to Murphy Oil stockholders. As a result, no grant, exercise, or cancellation activity occurred on MUSA stock compensation awards during the years ended December 31, 2012 or 2011. In February 2014, the Committee granted nonqualified stock options to certain employees of the Company. Following are the assumptions used by the Company to value the original awards:




		Year ended December 31,
		2014
	Fair value per option grant	$	11.44
	Assumptions
	Dividend yield		—
	Expected volatility		31.7%
	Risk-free interest rate		1.37%
	Expected life		4.6 years

	Changes in options outstanding for Company employees during the period from August 30, 2013 to December 31, 2014 are presented in the following table:
	Changes in options outstanding for Company employees during the period from August 30, 2013 to December 31, 2014 are presented in the following table:

			Number of Shares		Average Exercise Price
	Outstanding at December 31, 2012		—		$	—
	Granted at FMV		625,101			35.12
	Exercised		—			—
	Forfeited		-3,952			33.92
	Outstanding at December 31, 2013		621,149			35.13
	Granted at FMV		127,400			39.46
	Exercised		-74,766			34.21
Forfeited		-13,148			38.36
Outstanding at December 31, 2014		660,635			36.00

Exercisable at December 31, 2013		—		$	—
Exercisable at December 31, 2014		88,445			34.54


Additional information about stock options outstanding at December 31, 2014 is shown below:




		Options Outstanding						Options Exercisable
Range of Exercise Prices per Option		No. of Options		Avg. Life Remaining in Years		Aggregate Intrinsic Value		No. of Options		Avg. Life Remaining in Years	Aggregate Intrinsic Value
$32.53 to $37.06		386,119		4.7		$	13,634,984	49,228		4.1	$	1,788,414
$37.07 to $39.45		39,217		3.1			1,246,599	39,217		3.1		1,246,599
$39.46 to $40.25		235,299		5.7			6,823,643	—		—		—
		660,635		5.0		$	21,705,226	88,445		3.6	$	3,035,013

RESTRICTED STOCK UNITS (MUSA 2013 Plan)– The Committee has granted time based restricted stock units (RSUs) as part of the replacement of previously unvested performance based RSUs, performance units, and time based RSU’s previously issued to employees of Murphy Oil prior to August 30, 2013. In addition, certain other employees have also received grants of time based RSUs that will vest over various periods of time in the year ended December 31, 2014. In February and March 2014, the Committee granted time based restricted stock to certain employees. These awards were granted under the MUSA 2013 Plan and vest in 3 years.



(Number of units)		Employee RSU's
Outstanding at December 31, 2012		—
Granted		352,522
Vested and issued		-509
Forfeited		-4,915
Outstanding at December 31, 2013		347,098
Granted		93,025
Vested and issued		-20,680
Forfeited		-22,428
Outstanding at December 31, 2014		397,015


PERFORMANCE-BASED RESTRICTED STOCK UNITS (MUSA 2013 Plan) – In February 2014, the Committee awarded performance-based restricted stock units (performance units) to certain employees. Half of the performance units vest based on a 3-year return on average capital employed (ROACE) calculation and the other half vest based on a 3-year total shareholder return (TSR) calculation that compares MUSA to a group of 17 peer companies. The portion of the awards that vest based on TSR qualify as a market condition and must be valued using a Monte Carlo valuation model. For the TSR portion of the awards, the fair value was determined to be $43.41 per unit. For the ROACE portion of the awards, the valuation was based on the grant date fair value of $39.46 per unit and the number of awards will be periodically assessed to determine the probability of vesting.



(Number of units)		Employee PSU's
Outstanding at December 31, 2013		—
Granted		78,500
Vested and issued		—
Forfeited		-6,500
Outstanding at December 31, 2014		72,000











RESTRICTED STOCK UNITS (Directors Plan) – The Committee has also granted time based RSUs to the non-employee directors of the Company as part of their overall compensation package for being a member of the Board of Directors. These awards typically vest at the end of three years.


(Number of units)		Director RSU's
Outstanding at December 31, 2012		—
Granted		28,413
Vested and issued		—
Forfeited		—
Outstanding at December 31, 2013		28,413
Granted		22,437
Vested and issued		—
Forfeited		—
Outstanding at December 31, 2014		50,850

Employee_And_Retiree_Benefit_P

Employee And Retiree Benefit Plans	12 Months Ended
Employee And Retiree Benefit Plans	Dec. 31, 2014
Employee And Retiree Benefit Plans [Abstract]
Employee And Retiree Benefit Plans	Note 12 — Employee and Retiree Benefit Plans

	PENSION AND POSTRETIREMENT PLANS — After separating from Murphy Oil, the Company no longer sponsors or participates in any defined benefit pension plan or post retirement benefit plan for its employees. Prior to the separation, Murphy Oil had defined benefit pension plans that were principally noncontributory and covered most full-time employees. Upon separation from Murphy Oil, all amounts for these plans that involved Murphy USA employees were frozen and retained by Murphy Oil. Therefore, the assets and liabilities related to Murphy USA employees in these plans are not included in these financial statements as Murphy USA was considered to be participating in multiple employer benefit plans due to co-mingling of various plan assets. However, the periodic benefit expense for each period prior to August 30, 2013 includes the expense of the U.S. benefit plans. All U.S. tax qualified plans meet the funding requirements of federal laws and regulations.

	The table that follows provides the components of net periodic benefit expense associated with Company employees for the two years ended December 31, 2013. The net periodic benefit expense ended on the separation date of August 30, 2013 and therefore no further expense was recorded for these plans.


			Years ended December 31,

			Pension Benefits					Other Postretirement Benefits
	(Thousands of dollars)		2013			2012		2013		2012
	Service cost		$	3,401		$	4,227	$	1,447	$	1,770
	Interest cost			2,717			4,252		983		1,454
	Expected return on plan assets			-2,794			-3,860		—		—
	Amortization of prior service cost (benefits)			53			90		-7		-10
	Recognized actuarial loss			2,108			2,986		363		369
	Termination benefits expense			—			—		—		—
	Curtailment expense			—			—		—		—
	Net periodic benefit expense		$	5,485		$	7,695	$	2,786	$	3,583



	The following table provides the weighted-average assumptions used in the measurement of the net periodic benefit expense for the year ended December 31, 2012.



		Net Periodic Benefit Expenses
		Pension Benefits			Postretirement Benefits
		2012			2012
	Discount rate		4.87%			4.87%
	Expected return on plan assets		6.50%			0%
	Rate of compensation increase		4.20%			0%

	The discount rates used for purposes of determining the expense are based on the universe of high-quality corporate bonds that are available. Cash flow analyses are performed in which a spot yield curve is used to discount projected benefit payment streams for the most significant plans. The discounted cash flows are used to determine an equivalent single rate which is the basis for selecting the discount rate. Expected plan asset returns are based on long-term expectations for asset portfolios with similar investment mix characteristics. Expected compensation increases were based on anticipated future averages for Murphy Oil.

	U.S. Health Care Reform — In March 2010, the United States Congress enacted a health care reform law. Along with other provisions, the law (a) imposes a 40% excise tax on high-cost health plans as defined in the law beginning in 2018; (b) eliminated lifetime or annual coverage limits and required coverage for preventative health services beginning in September 2010; and (c) imposed a fee of $2 (subsequently adjusted for inflation) for each person covered by a health insurance policy beginning in September 2010. The new law did not significantly affect the Company’s consolidated and combined financial statements as of December 31, 2014 and 2013 and for the three years ended December 31, 2014. The Company continues to evaluate the various components of the law as guidance is issued and cannot predict with certainty all the ways it may impact the Company. However, based on the evaluation performed to date, the Company currently believes that the health care reform law will not have a material effect on its financial condition, results of operations, or cash flows in future periods.

	THRIFT PLAN – At the time of the spin-off, Murphy USA set up a new qualified defined contribution plan for full-time employees with an asset transfer from the Murphy Oil defined contribution plan. Most full-time employees of the Company may participate in savings plans by contributing up to a specified percentage of their base pay. The Company matches contributions at 100% of each employee’s contribution with a maximum match of 6%. In addition, the Company makes profit sharing contributions on an annual basis. Eligible employees receive a stated percentage of their base and incentive pay of 5%, 7%, or 9% determined on a formula that is based on a combination of age and years of service. The Company’s expenses related to this plan were $9,089,000 in 2014, $4,678,000 in 2013 and $2,460,000 in 2012.

	PROFIT SHARING PLAN – Eligible part-time employees may participate in the Company’s noncontributory profit sharing plan. Each year, the Company may make a discretionary employer contribution in an amount determined and authorized at the discretion of the Board of Directors. Eligible employees receive an allocation based on their compensation earned for the year the contribution is allocated. The Company’s expenses related to this plan were $1,848,000 in 2014, $1,861,000 in 2013 and $1,627,000 in 2012.

Financial_Instruments_And_Risk

Financial Instruments And Risk Management

12 Months Ended

Dec. 31, 2014

Financial Instruments And Risk Management [Abstract]

Financial Instruments And Risk Management

Note 13 — Financial Instruments and Risk Management

DERIVATIVE INSTRUMENTS — The Company makes limited use of derivative instruments to manage certain risks related to commodity prices. The use of derivative instruments for risk management is covered by operating policies and is closely monitored by the Company’s senior management. The Company does not hold any derivatives for speculative purposes and it does not use derivatives with leveraged or complex features. Derivative instruments are traded primarily with creditworthy major financial institutions or over national exchanges such as the New York Mercantile Exchange (“NYMEX”).

The Company is subject to commodity price risk related to corn that it will purchase in the future for feedstock and WDGS that it will sell in the future at its ethanol production facility. At December 31, 2014 and 2013, the Company had open physical delivery commitment contracts for purchase of approximately 13.4 million and 3.1 million bushels of corn, respectively, for processing at its ethanol plant. For the periods ended December 31, 2014 and 2013, the Company had open physical delivery commitment contracts for sale of approximately 0.5 million and 0.5 million equivalent bushels, respectively, of WDGS. To manage the price risk associated with certain of these physical delivery commitments which have fixed prices, at December 31, 2014 and 2013, the Company had outstanding derivative contracts with a net short volume of approximately 1.5 million bushels and 0.5 million bushels, respectively, that mature at future prices in effect on the expected date of delivery under the physical delivery commitment contracts. Additionally, at December 31, 2014 and 2013, the Company had outstanding derivative contracts with a net short volume of 3.2 and 2.0 million bushels, respectively, of corn to buy back when certain corn inventories are expected to be processed. The impact of marking to market these commodity derivative contracts decreased income before taxes by $2.1 million, decreased income before taxes by $0.1 million, and increased income before taxes by $2.9 million for the three years ended December 31, 2014, 2013 and 2012, respectively.

At December 31, 2014 and 2013, the fair value of derivative instruments not designated as hedging instruments are presented in the following table.

31-Dec-14

31-Dec-13

Asset Derivatives

Liabilitiy Derivatives

Asset Derivatives

Liabilitiy Derivatives

Balance

Sheet

Fair

Sheet

Fair

Sheet

Fair

Sheet

Fair

(Thousands of dollars)

Location

Value

Location

Value

Location

Value

Location

Value

Commodity derivative contracts

Accounts Receivable

Accounts Payable

2,204

Accounts Receivable

224

Accounts Payable

291

For the years ended December 31, 2014 and 2013, the gains and losses recognized in the consolidated and combined Income Statements for derivative instruments not designated as hedging instruments are presented in the following table.

Amount of Gain (Loss) Recognized

in Income on Derivative

(Thousands of dollars)

Statement of Income

Type of Derivative Contract

Location

2014

2013

Commodity

Fuel and ethanol costs of goods sold

921

8,516

The Company offsets certain assets and liabilities related to derivative contracts when the legal right of offset exists. Derivative assets and liabilities which have offsetting positions at December 31, 2014 and 2013 are presented in the following tables:

Gross Amounts

Net Amounts of

Gross Amounts

Offset in the

Assets Presented in

of Recognized

Combined

the Combined

(Thousands of dollars)

Assets

Balance Sheet

At December 31, 2014

Commodity derivatives

-19

At December 31, 2013

Commodity derivatives

233

-9

224

Gross Amounts

Net Amounts of

Gross Amounts

Offset in the

Liabilities Presented

of Recognized

Consolidated

in the Consolidated

(Thousands of dollars)

Liabilities

Balance Sheet

At December 31, 2014

Commodity derivatives

2,223

-19

2,204

At December 31, 2013

Commodity derivatives

300

-9

291

All commodity derivatives above are corn-based contracts associated with the Company’s Hereford ethanol plant as all positions related to Hankinson were assumed by the buyer in conjunction with the sale. Net derivative assets are included in Accounts Receivable presented in the table on the prior page and are included in Accounts Receivable on the Consolidated and Combined Balance Sheets; likewise, net derivative liabilities in the above table are included in Accounts Payable in the table above and are included in Accounts payable and accrued liabilities on the Consolidated and Combined Balance Sheets. These contracts permit net settlement and the Company generally avails itself of this right to settle net. At December 31, 2014 and 2013 cash deposits of $2.8 million and $2.9 million, respectively, related to commodity derivative contracts were reported in Prepaid expenses and other current assets in the Consolidated and Combined Balance Sheets. These cash deposits have not been used to reduce the reported net liabilities on the corn-based derivative contracts at December 31, 2014 and 2013.

Earnings_Per_Share

Earnings Per Share	12 Months Ended
Earnings Per Share	Dec. 31, 2014
Earnings Per Share [Abstract]
Earnings Per Share	Note 14 – Earnings Per Share

	Basic earnings per common share is computed by dividing net income available to common stockholders by the weighted average of common shares outstanding during the period. Diluted earnings per common share adjusts basic earnings per common share for the effects of stock options and restricted stock in the periods where such items are dilutive.

	On August 30, 2013, 46,743,316 shares of our common stock were distributed to the shareholders of Murphy Oil in connection with the separation. For comparative purposes, we have assumed this amount to be outstanding as of the beginning of each prior period prior to the separation presented in the calculation of weighted average shares outstanding.

	During May 2014, the Company executed a share repurchase program that was approved by the Board of Directors for approximately $50 million worth of common stock of the Company. At the completion of this plan, the Company had acquired 1,040,636 shares of common stock for an average price of $48.07 per share including brokerage fees.

	The following table provides a reconciliation of basic and diluted earnings per share computations for the years ended December 31, 2014, 2013 and 2012 (in thousands, except per share amounts):



		Years ended December 31,
	(Thousands of dollars except per share amounts)	2014		2013		2012
	Earnings per common share:
	Net income attributable to common stockholders	$	243,863	$	235,033	$	83,568
	Weighted average common shares outstanding (in thousands)		46,104		46,743		46,743
	Total earnings per share	$	5.29	$	5.03	$	1.79

	Earnings per common share - assuming dilution:	Years ended December 31,
		2014		2013		2012
	Net income attributable to common stockholders	$	243,863	$	235,033	$	83,568
	Weighted average common shares outstanding (in thousands)		46,104		46,743		46,743
	Common equivalent shares:
	Dilutive options		313		115		—
	Weighted average common shares outstanding - assuming dilution (in thousands)		46,417		46,858		46,743
	Earnings per share - assuming dilution	$	5.26	$	5.02	$	1.79

Other_Financial_Information

Other Financial Information	12 Months Ended
Other Financial Information	Dec. 31, 2014
Other Financial Information [Abstract]
Other Financial Information	Note 15 — Other Financial Information

	ETHANOL SALES AND OTHER – Ethanol sales and other revenue in the Consolidated and Combined Income Statements includes the following items:





	(Thousands of dollars)	2014		2013		2012
	Sales of ethanol and related plant products	$	223,831	$	269,254	$	290,158
	Renewable Identification Numbers (RINs) sales		92,916		91,391		8,830
	Other		3,267		2,907		2,988
	Total ethanol sales and other revenue	$	320,014	$	363,552	$	301,976


	CASH FLOW DISCLOSURES — Cash income taxes paid (collected), net of refunds, were $158,063,000, $47,757,000 and $13,036,000 for the three years ended December 31, 2014, 2013 and 2012, respectively. Interest paid was $34,019,000, $1,647,000 and $479,000 for the years ended December 31, 2014, 2013 and 2012, respectively. Noncash reductions (additions) to net parent investment related primarily to settlement of income taxes were $453,000 and ($6,747,000) for the years ended December 31, 2013 and 2012, respectively.




	(Thousands of dollars)	2014		2013		2012
	Accounts receivable	$	59,171	$	331,679	$	-171,115
	Inventories		-3,858		20,532		-29,784
	Prepaid expenses and other current assets		637		-6,623		-3,187
	Deferred income tax assets		—		—		—
	Accounts payable and accrued liabilities		-50,972		-272,371		230,704
	Income taxes payable		-30,782		7,276		4,396
	Current deferred income tax liabilities		-6,662		-5,628		1,539
	Net decrease (increase) in noncash operating working capital	$	-32,466	$	74,865	$	32,553

Assets_And_Liabilities_Measure

Assets And Liabilities Measured At Fair Value

12 Months Ended

Dec. 31, 2014

Assets And Liabilities Measured At Fair Value [Abstract]

Assets And Liabilities Measure At Fair Value

Note 16 — Assets and Liabilities Measured at Fair Value

The Company carries certain assets and liabilities at fair value in its Consolidated and Combined Balance Sheets. The fair value hierarchy is based on the quality of inputs used to measure fair value, with Level 1 being the highest quality and Level 3 being the lowest quality. Level 1 inputs are quoted prices in active markets for identical assets or liabilities. Level 2 inputs are observable inputs other than quoted prices included within Level 1. Level 3 inputs are unobservable inputs which reflect assumptions about pricing by market participants.

The Company carries certain assets and liabilities at fair value in its Consolidated and Combined Balance Sheets. The fair value measurements for these assets and liabilities at December 31, 2014 and 2013 are presented in the following table.

Fair Value Measurements

at Reporting Date Using

Quoted Prices

Significant

In Active Markets

Other

Significant

Fair Value

for Identical

Observable

Unobservable

December 31,

Assets/(Liabilities)

Inputs

(Thousands of dollars)

2014

(Level 1)

(Level 2)

(Level 3)

Assets

Commodity derivative contracts

—

Liabilities

Commodity derivative contracts

-2,204

—

-2,204

—

Fair Value Measurements

at Reporting Date Using

Quoted Prices

Significant

In Active Markets

Other

Significant

Fair Value

for Identical

Observable

Unobservable

December 31,

Assets/(Liabilities)

Inputs

(Thousands of dollars)

2013

(Level 1)

(Level 2)

(Level 3)

Assets

Commodity derivative contracts

224

—

224

—

Liabilities

Commodity derivative contracts

-291

—

-291

—

At the balance sheet date the fair value of commodity derivatives contracts for corn was determined based on market quotes for No. 2 yellow corn. The change in fair value of commodity derivatives is recorded in Fuel and ethanol cost of goods sold. The carrying value of the Company’s Cash and cash equivalents, Accounts receivable-trade and Trade accounts payable approximates fair value.

The following table presents the carrying amounts and estimated fair values of financial instruments held by the Company at December 31, 2014 and 2013. The fair value of a financial instrument is the amount at which the instrument could be exchanged in a current transaction between willing parties. The table excludes Cash and cash equivalents, Accounts receivable-trade, and Trade accounts payable and accrued liabilities, all of which had fair values approximating carrying amounts. The fair value of Current and Long-term debt was estimated based on rates offered to the Company at that time for debt of the same maturities. The Company has off-balance sheet exposures relating to certain financial guarantees and letters of credit. The fair value of these, which represents fees associated with obtaining the instruments, was nominal.

31-Dec-14

31-Dec-13

Carrying

(Thousands of dollars)

Amount

Fair Value

Amount

Fair Value

Financial liabilities

Current and long-term debt

-492,443

-510,344

-561,578

-559,411

Commitments

Commitments	12 Months Ended
Commitments	Dec. 31, 2014
Contingencies [Abstract]
Commitments	Note 17 – Commitments

	The Company leases land, gasoline stations, and other facilities under operating leases. During the next five years, expected future rental payments under all operating leases are approximately $22,884,000 in 2015, $22,059,000 in 2016, $10,262,000 in 2017, $9,311,000 in 2018, and $9,031,000 in 2019. Rental expense for noncancelable operating leases, including contingent payments when applicable, was $11,433,000 in 2014, $9,691,000 in 2013 and $6,093,000 in 2012. Operating lease expense related to discontinued operations was $0, $7,089,000, and $3,380,000 in 2014, 2013, and 2012, respectively.

	Commitments for capital expenditures were approximately $169,797,000 at December 31, 2014, including $159,778,000 for construction of future Murphy USA and Murphy Express gasoline stations (including land) in process at year-end, along with $4,138,000 for improvements of existing stations, to be financed with our operating cash flow and/or incurrence of indebtedness.

Contingencies

Contingencies	12 Months Ended
Contingencies	Dec. 31, 2014
Contingencies [Abstract]
Contingencies
	Note 18 — Contingencies

	The Company’s operations and earnings have been and may be affected by various forms of governmental action. Examples of such governmental action include, but are by no means limited to: tax increases and retroactive tax claims; import and export controls; price controls; allocation of supplies of crude oil and petroleum products and other goods; laws and regulations intended for the promotion of safety and the protection and/or remediation of the environment; governmental support for other forms of energy; and laws and regulations affecting the Company’s relationships with employees, suppliers, customers, stockholders and others. Because governmental actions are often motivated by political considerations, may be taken without full consideration of their consequences, and may be taken in response to actions of other governments, it is not practical to attempt to predict the likelihood of such actions, the form the actions may take or the effect such actions may have on the Company.

	ENVIRONMENTAL MATTERS AND LEGAL MATTERS — Murphy USA is subject to numerous federal, state and local laws and regulations dealing with the environment. Violation of such environmental laws, regulations and permits can result in the imposition of significant civil and criminal penalties, injunctions and other sanctions. A discharge of hazardous substances into the environment could, to the extent such event is not insured, subject the Company to substantial expense, including both the cost to comply with applicable regulations and claims by neighboring landowners and other third parties for any personal injury, property damage and other losses that might result.

	The Company currently owns or leases, and has in the past owned or leased, properties at which hazardous substances have been or are being handled. Although the Company believes it has used operating and disposal practices that were standard in the industry at the time, hazardous substances may have been disposed of or released on or under the properties owned or leased by the Company or on or under other locations where they have been taken for disposal. In addition, many of these properties have been operated by third parties whose management of hazardous substances was not under the Company’s control. Under existing laws the Company could be required to remediate contaminated property (including contaminated groundwater) or to perform remedial actions to prevent future contamination. Certain of these contaminated properties are in various stages of negotiation, investigation, and/or cleanup, and the Company is investigating the extent of any related liability and the availability of applicable defenses. With the sale of the U.S. refineries in 2011, Murphy Oil retained certain liabilities related to environmental matters. Murphy Oil also obtained insurance covering certain levels of environmental exposures. With respect to the previously owned refinery properties, Murphy Oil retained those liabilities in the Separation and Distribution agreement that was entered into related to the separation on August 30, 2013. With respect to any remaining potential liabilities, the Company believes costs related to these sites will not have a material adverse effect on Murphy USA’s net income, financial condition or liquidity in a future period.

	Certain environmental expenditures are likely to be recovered by the Company from other sources, primarily environmental funds maintained by certain states. Since no assurance can be given that future recoveries from other sources will occur, the Company has not recorded a benefit for likely recoveries at December 31, 2014, however certain jurisdictions provide reimbursement for these expenses which have been considered in recording the net exposure. The U.S. Environmental Protection Agency (EPA) currently considers the Company a Potentially Responsible Party (PRP) at one Superfund site. As to the site, the potential total cost to all parties to perform necessary remedial work at this site may be substantial. However, based on current negotiations and available information, the Company believes that it is a de minimis party as to ultimate responsibility at the Superfund site. Accordingly, the Company has not recorded a liability for remedial costs at the Superfund site at December 31, 2014. The Company could be required to bear a pro rata share of costs attributable to nonparticipating PRPs or could be assigned additional responsibility for remediation at this site or other Superfund sites. The Company believes that its share of the ultimate costs to clean-up this site will be immaterial and will not have a material adverse effect on its net income, financial condition or liquidity in a future period.

	Based on information currently available to the Company, the amount of future remediation costs to be incurred to address known contamination sites is not expected to have a material adverse effect on the Company’s future net income, cash flows or liquidity. However, there is the possibility that additional environmental expenditures could be required to address contamination, including as a result of discovering additional contamination or the imposition of new or revised requirements applicable to known contamination.

	In the case Freeny v. Murphy Oil Corporation and Murphy Oil USA, Inc., the plaintiffs allege that the Company has infringed on their electronic pricing system patent. The Company’s claim is that our pricing system can be differentiated and in fact we have our own patent for our pricing system. Murphy Oil USA, Inc. has agreed to defend and indemnify Murphy Oil Corporation in this matter as required by the terms of the Separation Agreement. We are unable to estimate potential damages at this point and we are defending the claim vigorously. Trial is currently set for June 2015. At this time, management believes the probability of loss in this case is remote. However, it is possible that an unfavorable outcome of this lawsuit or other contingency could have a material impact on the liquidity, results of operations, or financial condition of the Company in future periods.

	Murphy USA is engaged in a number of other legal proceedings, all of which the Company considers routine and incidental to its business. Based on information currently available to the Company, the ultimate resolution of those other legal matters is not expected to have a material adverse effect on the Company’s net income, financial condition or liquidity in a future period.

	INSURANCE — The Company maintains insurance coverage at levels that are customary and consistent with industry standards for companies of similar size. Murphy USA maintains statutory workers compensation insurance with a deductible of $0.5 million per occurrence. As of December 31, 2014, there were a number of outstanding claims that are of a routine nature. The estimated incurred but unpaid liabilities relating to these claims are included in Trade account payables and accrued liabilities on the Consolidated and Combined Balance Sheets. While the ultimate outcome of these claims cannot presently be determined, management believes that the accrued liability of $5.0 million will be sufficient to cover the related liability and that the ultimate disposition of these claims will have no material effect on the Company’s financial position and results of operations.

	The Company was insured under Murphy Oil’s insurance policies for occurrences prior to the completion of the separation. The specifications and insured limits under those policies, however, were at a level consistent with Murphy Oil as a whole. Following the separation, the Company has obtained insurance coverage as appropriate for the business in which it is engaged, but may incur losses that are not covered by insurance or reserves, in whole or in part, and such losses could adversely affect our results of operations and financial position.

	TAX MATTERS — Murphy USA is subject to extensive tax liabilities imposed by multiple jurisdictions, including income taxes, indirect taxes (excise/duty, sales/use and gross receipts taxes), payroll taxes, franchise taxes, withholding taxes and ad valorem taxes. New tax laws and regulations and changes in existing tax laws and regulations are continuously being enacted or proposed that could result in increased expenditures for tax liabilities in the future. Many of these liabilities are subject to periodic audits by the respective taxing authority. Subsequent changes to our tax liabilities because of these audits may subject us to interest and penalties.

	OTHER MATTERS — In the normal course of its business, the Company is required under certain contracts with various governmental authorities and others to provide financial guarantees or letters of credit that may be drawn upon if the Company fails to perform under those contracts. At December 31, 2014, the Company had contingent liabilities of $16.2 million on outstanding letters of credit. The Company has not accrued a liability in its balance sheet related to these financial guarantees and letters of credit because it is believed that the likelihood of having these drawn is remote.

Recent_Accounting_And_Reportin

Recent Accounting And Reporting Rules	12 Months Ended
Recent Accounting And Reporting Rules	Dec. 31, 2014
Recent Accounting And Reporting Rules [Abstract]
Recent Accounting And Reporting Rules
	Note 19 — Recent Accounting and Reporting Rules

	In April 2014, the FASB issued ASU No. 2014-08, "Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity," which changes the requirements for reporting discontinued operations under Accounting Standards Codification Topic 205. Under ASU No. 2014-08, a disposal of a component of an entity or a group of components of an entity is required to be reported in discontinued operations if the disposal represents a strategic shift that has, or will have, a major effect on an entity’s operations and financial results. The standard states that a strategic shift could include a disposal of (i) a major geographical area of operations, (ii) a major line of business, (iii) a major equity method investment or (iv) other major parts of an entity. ASU No. 2014-08 no longer precludes presentation as a discontinued operation if (i) there are operations and cash flows of the component that have not been eliminated from the reporting entity’s ongoing operations or (ii) there is significant continuing involvement with a component after its disposal. Additional disclosures about discontinued operations will also be required. The guidance is effective for annual periods beginning on or after December 15, 2014, and is to be applied prospectively to new disposals and new classifications of disposal groups as held for sale after the effective date. The Company expects to adopt ASU No. 2014-08 on a prospective basis beginning January 1, 2015.

	In May 2014, the FASB issued ASU No. 2014-09 “Revenue from Contracts with Customers,” which supersedes the revenue recognition requirements in the Accounting Standards Codification (“Codification”) Topic 605, Revenue Recognition, and most industry-specific guidance throughout the Industry Topics of the Codification. The core principle of the new ASU No. 2014-09 is for companies to recognize revenue from the transfer of goods or services to customers in amounts that reflect the consideration to which the company expects to be entitled in exchange for those goods or services. The new standard also will result in enhanced disclosures about revenue, provide guidance for transactions that were not previously addressed comprehensively (for example, service revenue and contract modifications) and improve guidance for multiple-element arrangements. The guidance is effective for annual and interim periods beginning after December 15, 2016, with early adoption prohibited. The Company expects to adopt ASU No. 2014-09 beginning January 1, 2017 and is in the process of assessing the impact that the new guidance will have on the Company's results of operations, financial condition and disclosures.

	In August 2014, the FASB issued ASU No. 2014-15, “Disclosure of Uncertainties about an Entity's Ability to Continue as a Going Concern,” which requires management to assess, at each interim and annual reporting period, whether substantial doubt exists about the Company's ability to continue as a going concern. The new standard substantially aligns the accounting requirements with current auditing requirements (except that the auditing standards require a one-year assessment from the balance sheet date rather than the financial statement issuance date). The new standard is effective for all entities for the first annual period ending after December 15, 2016, and interim periods thereafter, with early adoption permitted.

Business_Segments

Business Segments	12 Months Ended
Business Segments	Dec. 31, 2014
Business Segments [Abstract]
Business Segments
	Note 20 — Business Segments



	Segment Information			Corporate and		Discontinued
	(Thousands of dollars)	Marketing		Other Assets		Operations		Consolidated
	Year ended December 31, 2014
	Segment income (loss)	$	242,434		648		781	$	243,863
	Revenues from external customers		16,985,903		224,016		—		17,209,919
	Interest income		—		244		—		244
	Interest expense		—		-36,646		—		-36,646
	Income tax expense (benefit)		127,657		-1,316		—		126,341
	Significant noncash charges (credits)
	Depreciation and amortization		74,906		4,328		—		79,234
	Accretion of asset retirement obligations		1,200		—		—		1,200
	Deferred and noncurrent income taxes (benefits)		368		-1,400		—		-1,032
	Additions to property, plant and equipment		131,139		7,749		—		138,888
	Total assets at year-end	$	1,544,018		390,239		—	$	1,934,257







	Segment Information			Corporate and		Discontinued
	(Thousands of dollars)	Marketing		Other Assets		Operations		Consolidated
	Year ended December 31, 2013
	Segment income (loss)	$	164,013		-7,687		78,707	$	235,033
	Revenues from external customers		17,814,081		269,254		—		18,083,335
	Interest income		—		1,099		—		1,099
	Interest expense		—		-14,509		—		-14,509
	Income tax expense (benefit)		106,223		-4,872		—		101,351
	Significant noncash charges (credits)
	Depreciation and amortization		71,253		2,877		—		74,130
	Accretion of asset retirement obligations		1,096		—		—		1,096
	Deferred and noncurrent income taxes (benefits)		-9,796		2,534		—		-7,262
	Additions to property, plant and equipment		162,051		9,402		519		171,972
	Total assets at year-end	$	1,527,125		354,117		—	$	1,881,242

	Year ended December 31, 2012
	Segment income (loss)	$	139,583		-53,169		-2,846	$	83,568
	Revenues from external customers		19,011,040		290,268		—		19,301,308
	Interest income		—		172		—		172
	Interest expense		—		-384		—		-384
	Income tax expense (benefit)		92,059		-28,354		—		63,705
	Significant noncash charges (credits)
	Depreciation and amortization		66,913		4,827		—		71,740
	Accretion of asset retirement obligations		980		—		—		980
	Impairment of properties		—		60,988		—		60,988
	Deferred and noncurrent income taxes (benefits)		3,393		-19,856		—		-16,463
	Additions to property, plant and equipment		103,096		1,400		7,097		111,593
	Total assets at year-end	$	1,765,020		111,025		116,420	$	1,992,465

Guarantor_Subsidiaries

Guarantor Subsidiaries	12 Months Ended
Guarantor Subsidiaries	Dec. 31, 2014
Guarantor Subsidiaries [Abstract]
Guarantor Subsidiaries

	Note 21 – Guarantor Subsidiaries

	Certain of the Company’s 100% owned, domestic subsidiaries (the “Guarantor Subsidiaries”) fully and unconditionally guarantee, on a joint and several basis, certain of the outstanding indebtedness of the Company, including the 6.00% senior notes due 2023. The following consolidating and/or combining schedules present financial information on a consolidated and combined basis in conformity with the SEC’s Regulation S-X Rule 3-10(d):

	CONSOLIDATING BALANCE SHEET




	(Thousands of dollars)		31-Dec-14
	Assets		Parent Company			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
	Current assets
	Cash and cash equivalents		$	—		$	327,163		$	—		$	942		$	—		$	328,105
	Accounts receivable—trade, less allowance for doubtful accounts of $4,456 in 2014			—			138,466			—			1,625			—			140,091
	Inventories, at lower of cost or market			—			157,046			—			25,868			—			182,914
	Prepaid expenses and other current assets			—			11,710			—			3,062			—			14,772
	Total current assets			—			634,385			—			31,497			—			665,882
	Property, plant and equipment, at cost less accumulated depreciation and amortization of $730,202 in 2014			—			1,248,081			—			5,043			—			1,253,124
	Investments in subsidiaries			1,580,277			177,263			—			—			-1,757,540			—
	Other assets			—			14,736			—			515			—			15,251
	Deferred tax assets			—			—			—			19,273			-19,273			—
	Total assets		$	1,580,277		$	2,074,465		$	—		$	56,328		$	-1,776,813		$	1,934,257
	Liabilities and Stockholders' Equity
	Current liabilities
	Current maturities of long-term debt		$	—		$	—		$	—		$	—		$	—		$	—
	Inter-company accounts payable			51,348			82,528			-52,077			-81,799						—
	Trade accounts payable and accrued liabilities			—			381,271			—			5,728			—			386,999
	Income taxes payable			—			18,348			14			7,238			—			25,600
	Deferred income taxes			—			522			—			-41			—			481
	Total current liabilities			51,348			482,669			-52,063			-68,874			—			413,080
	Long-term debt			—			492,443			—			—			—			492,443
	Deferred income taxes			—			137,882			—			—			-19,273			118,609
	Asset retirement obligations			—			22,245			—			—			—			22,245
	Deferred credits and other liabilities			—			29,175			—			—			—			29,175
	Total liabilities			51,348			1,164,414			-52,063			-68,874			-19,273			1,075,552
	Stockholders' Equity
	Preferred Stock, par $0.01 (authorized 20,000,000 shares, none outstanding)			—			—			—			—			—			—
	Common Stock, par $0.01 (authorized 200,000,000 shares, 46,767,164 shares issued at December 31, 2014)			468			1			60			—			-61			468
	Treasury stock (1,056,689 shares held at December 31, 2014)			-51,073			—			—			—			—			-51,073
	Additional paid in capital (APIC)			1,228,095			558,611			52,004			35,677			-1,316,516			557,871
	Retained earnings			351,439			351,439			-1			89,525			-440,963			351,439
	Total stockholders' equity			1,528,929			910,051			52,063			125,202			-1,757,540			858,705
	Total liabilities and stockholders' equity		$	1,580,277		$	2,074,465		$	—		$	56,328		$	-1,776,813		$	1,934,257


	COMBINING BALANCE SHEET




	(Thousands of dollars)		31-Dec-13
	Assets		Parent Company			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
	Current assets
	Cash and cash equivalents		$	—		$	294,741		$	—		$	—		$	—		$	294,741
	Accounts receivable—trade, less allowance for doubtful accounts of $4,456 in 2013			—			191,904			—			1,277			—			193,181
	Inventories, at lower of cost or market			—			157,795			—			21,260			—			179,055
	Prepaid expenses and other current assets			—			12,217			—			3,222			—			15,439
	Total current assets			—			656,657			—			25,759			—			682,416
	Property, plant and equipment, at cost less accumulated depreciation and amortization of $655,360 in 2013			—			1,189,082			—			1,641			—			1,190,723
	Investments in subsidiaries			1,228,837			—			—			—			-1,228,837			—
	Other assets			—			95,604			—			239			-87,740			8,103
	Deferred tax assets			—			—			—			—			—			—
Total assets		$	1,228,837		$	1,941,343		$	—		$	27,639		$	-1,316,577		$	1,881,242
Liabilities and Stockholders' Equity
Current liabilities
Current maturities of long-term debt		$	—		$	14,000		$	—		$	—		$	—		$	14,000
Inter-company accounts payable			—			119,366			-52,107			-67,259			—			—
Trade accounts payable and accrued liabilities			—			429,763			—			3,465			—			433,228
Income taxes payable			—			71,450			43			653			—			72,146
Deferred income taxes			—			7,143			—			—			—			7,143
Total current liabilities			—			641,722			-52,064			-63,141			—			526,517
Long-term debt			—			547,578			—			—			—			547,578
Deferred income taxes			—			128,451			—			-13,519			—			114,932
Asset retirement obligations			—			17,130			—			—			—			17,130
Deferred credits and other liabilities			—			18,749			—			—			—			18,749
Total liabilities			—			1,353,630			-52,064			-76,660			—			1,224,906
Stockholders' Equity
Preferred Stock, par $0.01 (authorized 20,000,000 shares, none outstanding)			—			—			—			—			—			—
Common Stock, par $0.01 (authorized 200,000,000 shares, 46,746,633 shares issued and outstanding at December 31, 2013)			467			1			60			—			-61			467
Treasury stock			—			—			—			—			—			—
Additional paid in capital (APIC)			1,228,370			548,758			52,004			35,677			-1,316,516			548,293
Retained earnings			—			38,954			—			68,622			—			107,576
Total stockholders' equity			1,228,837			587,713			52,064			104,299			-1,316,577			656,336
Total liabilities and stockholders' equity		$	1,228,837		$	1,941,343		$	—		$	27,639		$	-1,316,577		$	1,881,242


CONSOLIDATING AND COMBINING INCOME STATEMENT


(Thousands of dollars)		Year ended December 31, 2014
Revenues		Parent Company			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated and Combined
Petroleum product sales		$	—		$	14,911,658		$	—		$	—		$	-183,131		$	14,728,527
Merchandise sales			—			2,161,378			—			—			—			2,161,378
Ethanol sales and other			—			96,109			—			223,905			—			320,014
Total revenues			—			17,169,145			—			223,905			-183,131			17,209,919
Costs and operating expenses
Petroleum product cost of goods sold			—			14,257,710			—			—			-183,131			14,074,579
Merchandise cost of goods sold			—			1,859,732			—			—			—			1,859,732
Ethanol cost of goods sold			—			—			—			158,276			—			158,276
Station and other operating expenses			—			486,762			—			34,764			—			521,526
Depreciation and amortization			—			79,087			—			147			—			79,234
Impairment of properties			—			—			—			—			—			—
Selling, general and administrative			—			119,265			1			1,635			—			120,901
Accretion of asset retirement obligations			—			1,200			—			—			—			1,200
Total costs and operating expenses			—			16,803,756			1			194,822			-183,131			16,815,448
Income from operations			—			365,389			-1			29,083			—			394,471
Other income (expense)
Interest income			—			244			—			—			—			244
Interest expense			—			-36,646			—			—			—			-36,646
Gain (loss) on sale of assets			—			194			—			—			—			194
Other nonoperating income			—			10,166			—			994			—			11,160
Total other income (expense)			—			-26,042			—			994			—			-25,048
Income from continuing operations before income taxes			—			339,347			-1			30,077			—			369,423
Income tax expense			—			116,386			—			9,955			—			126,341
Income from continuing operations			—			222,961			-1			20,122			—			243,082
Income (loss) from discontinued operations, net of income taxes			—			—			—			781			—			781
Equity earnings in affiliates, net of tax			351,439			89,524			—			—			-440,963			—
Net Income		$	351,439		$	312,485		$	-1		$	20,903		$	-440,963		$	243,863


COMBINING INCOME STATEMENT


(Thousands of dollars)		Year ended December 31, 2013
Revenues		Parent Company			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated and Combined
Petroleum product sales		$	—		$	15,766,752		$	—		$	—		$	-206,435		$	15,560,317
Merchandise sales			—			2,159,466			—			—			—			2,159,466
Ethanol sales and other			—			94,298			—			269,254			—			363,552
Total revenues			—			18,020,516			—			269,254			-206,435			18,083,335
Costs and operating expenses
Petroleum product cost of goods sold			—			15,216,390			—			—			-206,435			15,009,955
Merchandise cost of goods sold			—			1,877,630			—			—			—			1,877,630
Ethanol cost of goods sold			—			—			—			228,899			—			228,899
Station and other operating expenses			—			460,476			—			33,227			—			493,703
Depreciation and amortization			—			74,053			—			77			—			74,130
Impairment of properties			—			—			—			—			—			—
Selling, general and administrative			—			129,430			1			3,568			—			132,999
Accretion of asset retirement obligations			—			1,096			—			—			—			1,096
Total costs and operating expenses			—			17,759,075			1			265,771			-206,435			17,818,412
Income from operations			—			261,441			-1			3,483			—			264,923
Other income (expense)
Interest income			—			1,099			—			—			—			1,099
Interest expense			—			-14,509			—			—			—			-14,509
Gain (loss) on sale of assets			—			5,995			—			—			—			5,995
Other nonoperating income			—			169			—			—			—			169
Total other income (expense)			—			-7,246			—			—			—			-7,246
Income from continuing operations before income taxes			—			254,195			-1			3,483			—			257,677
Income tax expense			—			100,059			—			1,292			—			101,351
Income from continuing operations			—			154,136			-1			2,191			—			156,326
Income (loss) from discontinued operations, net of income taxes			—			—			—			78,707			—			78,707
Equity earnings in affiliates, net of tax			—			—			—			—			—			—
Net Income		$	—		$	154,136		$	-1		$	80,898		$	—		$	235,033


COMBINING INCOME STATEMENT


(Thousands of dollars)		Year ended December 31, 2012
Revenues		Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Combined
Petroleum product sales		$	17,071,126		$	—		$	—		$	-216,141		$	16,854,985
Merchandise sales			2,144,347			—			—			—			2,144,347
Ethanol sales and other			11,708			—			290,268			—			301,976
Total revenues			19,227,181			—			290,268			-216,141			19,301,308
Costs and operating expenses
Petroleum product cost of goods sold			16,514,457			—			—			-216,141			16,298,316
Merchandise cost of goods sold			1,855,641			—			—			—			1,855,641
Ethanol cost of goods sold			—			—			269,168			—			269,168
Station and other operating expenses			447,103			—			33,006			—			480,109
Depreciation and amortization			68,299			—			3,441			—			71,740
Impairment of properties			—			—			60,988			—			60,988
Selling, general and administrative			109,634			2			3,486			—			113,122
Accretion of asset retirement obligations			980			—			—			—			980
Total costs and operating expenses			18,996,114			2			370,089			-216,141			19,150,064
Income from operations			231,067			-2			-79,821			—			151,244
Other income (expense)
Interest income			172			—			—			—			172
Interest expense			-384			—			—			—			-384
Gain (loss) on sale of assets			-1,005			—			—			—			-1,005
Other nonoperating income			92			—			—			—			92
Total other income (expense)			-1,125			—			—			—			-1,125
Income from continuing operations before income taxes			229,942			-2			-79,821			—			150,119
Income tax expense			91,525			—			-27,820			—			63,705
Income from continuing operations			138,417			-2			-52,001			—			86,414
Income from discontinued operations, net of income taxes			—			—			-2,846			—			-2,846
Equity earnings in affiliates, net of tax			—			—			—			—			—
Net Income		$	138,417		$	-2		$	-54,847		$	—		$	83,568


CONSOLIDATING AND COMBINING STATEMENT OF CASH FLOW



(Thousands of dollars)		Year ended December 31, 2014
Operating Activities		Parent Company			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated and Combined
Net income		$	351,439		$	312,485		$	-1		$	20,903		$	-440,963		$	243,863
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Income from discontinued operations, net of tax			—			—			—			-781			—			-781
Depreciation and amortization			—			79,087			—			147			—			79,234
Amortization of deferred major repair costs			—			—			—			1,093			—			1,093
Deferred and noncurrent income tax charges (credits)			—			-4,403			—			3,371			—			-1,032
Impairment of properties			—			—			—			—			—			—
Accretion on discounted liabilities			—			1,200			—			—			—			1,200
Pretax gains from sale of assets			—			-194			—			—			—			-194
Net decrease (increase) in noncash operating working capital			—			-36,475			—			4,009			—			-32,466
Equity in earnings			-351,439			-89,524			—			—			440,963			—
Other operating activities - net			—			14,531			—			—			—			14,531
Net cash provided by (required by) continuing operations			—			276,707			-1			28,742			—			305,448
Net cash provided by discontinued operations			—			—			—			134			—			134
Net cash provided by (required by) operating activities			—			276,707			-1			28,876			—			305,582
Investing Activities
Property additions			—			-135,339			—			-3,549			—			-138,888
Proceeds from sale of assets			—			376			—			—			—			376
Expenditures for major repairs			—			—			—			-1,369			—			-1,369
Other investing activities - net			—			-10,631			—			—			—			-10,631
Sales proceeds			—			—			—			1,097			—			1,097
Other			—			—			—			—			—			—
Net cash required by investing activities			—			-145,594			—			-3,821			—			-149,415
Financing Activities
Purchase of treasury stock			-51,348			—			—			—			—			-51,348
Repayments of long-term debt			—			-70,000			—			—			—			-70,000
Additions to long-term debt			—			—			—			—			—			—
Cash dividend to former parent			—			—			—			—			—			—
Debt issuance costs			—			-875			—			—			—			-875
Amounts related to share-based compensation			—			-580			—			—			—			-580
Net distributions to parent			51,348			-27,236			1			-24,113			—			—
Net cash provided by (required by) financing activities			—			-98,691			1			-24,113			—			-122,803
Net increase in cash and cash equivalents			—			32,422			—			942			—			33,364
Cash and cash equivalents at January 1			—			294,741			—			—			—			294,741
Cash and cash equivalents at December 31		$	—		$	327,163		$	—		$	942		$	—		$	328,105


COMBINING STATEMENT OF CASH FLOW



(Thousands of dollars)		Year ended December 31, 2013
Operating Activities		Parent Company			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated and Combined
Net income (loss)		$	—		$	154,136		$	-1		$	80,898		$	—		$	235,033
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Income from discontinued operations, net of tax			—			—			—			-78,707			—			-78,707
Depreciation and amortization			—			74,053			—			77			—			74,130
Amortization of deferred major repair costs			—			—			—			575			—			575
Deferred and noncurrent income tax charges (credits)			—			-11,568			—			4,306			—			-7,262
Impairment of properties			—			—			—			—			—			—
Accretion on discounted liabilities			—			1,096			—			—			—			1,096
Pretax gains from sale of assets			—			-5,995			—			—			—			-5,995
Net decrease in noncash operating working capital			—			51,204			—			23,661			—			74,865
Equity in earnings			—			—			—			—			—			—
Other operating activities - net			—			13,215			—			—			—			13,215
Net cash provided by (required by) continuing operations			—			276,141			-1			30,810			—			306,950
Net cash provided by discontinued operations			—			—			—			49,748			—			49,748
Net cash provided by (required by) operating activities			—			276,141			-1			80,558			—			356,698
Investing Activities
Property additions			—			-163,303			—			-1,233			—			-164,536
Proceeds from sale of assets			—			6,113			—			—			—			6,113
Expenditures for major repairs			—			—			—			-726			—			-726
Other investing activities - net			—			52			—			—			—			52
Sales proceeds			—			—			—			173,118			—			173,118
Other			—			—			—			-1,129			—			-1,129
Net cash provided by (required by) investing activities			—			-157,138			—			170,030			—			12,892
Financing Activities
Purchase of treasury stock			—			—			—			—			—			—
Repayments of long-term debt			—			-80,000			—			-1,170			—			-81,170
Additions to long-term debt			—			641,250			—			—			—			641,250
Cash dividend to former parent			—			-650,000			—			—			—			-650,000
Debt issuance costs			—			-6,693			—			—			—			-6,693
Amounts related to share-based compensation			—			—			—			—			—			—
Net distributions to parent			—			213,808			1			-249,418			—			-35,609
Net cash provided by (required by) financing activities			—			118,365			1			-250,588			—			-132,222
Net increase in cash and cash equivalents			—			237,368			—			—			—			237,368
Cash and cash equivalents at January 1			—			57,373			—			—			—			57,373
Cash and cash equivalents at December 31		$	—		$	294,741		$	—		$	—		$	—		$	294,741


COMBINING STATEMENT OF CASH FLOW



(Thousands of dollars)		Year ended December 31, 2012
Operating Activities		Issuer				Guarantor Subsidiaries		Non-Guarantor Subsidiaries			Eliminations			Combined
Net income (loss)		$	138,417		$	-2		$	-54,847		$	—		$	83,568
Adjustments to reconcile net income to net cash provided by operating activities
(Income) loss from discontinued operations, net of tax			—			—			2,846			—			2,846
Depreciation and amortization			68,299			—			3,441			—			71,740
Amortization of deferred major repair costs			—			—			163			—			163
Deferred and noncurrent income tax charges (credits)			1,957			—			-18,420			—			-16,463
Impairment of properties			—			—			60,988			—			60,988
Accretion on discounted liabilities			980			—			—			—			980
Pretax (gains) losses from sale of assets			1,005			—			—			—			1,005
Net decrease (increase) in noncash operating working capital			62,493			—			-29,940			—			32,553
Equity in earnings			—			—			—			—			—
Other operating activities - net			-1,088			—			—			—			-1,088
Net cash provided by (required by) continuing operations			272,063			-2			-35,769			—			236,292
Net cash provided by discontinued operations			—			—			1,135			—			1,135
Net cash provided by (required by) operating activities			272,063			-2			-34,634			—			237,427
Investing Activities
Property additions			-103,152			—			-1,344			—			-104,496
Proceeds from sale of assets			364			—			—			—			364
Expenditures for major repairs			—			—			-250			—			-250
Other investing activities - net			—			—			—			—			—
Sales proceeds			—			—			—			—			—
Other			—			—			-7,706			—			-7,706
Net cash required by investing activities			-102,788			—			-9,300			—			-112,088
Financing Activities
Purchase of treasury stock			—			—			—			—			—
Repayments of long-term debt			—			—			-42			—			-42
Additions to long-term debt			—			—			—			—			—
Cash dividend to former parent			—			—			—			—			—
Debt issuance costs			—			—			—			—			—
Amounts related to share-based compensation			—			—			—			—			—
Net distributions to former parent			-148,789			2			43,976			—			-104,811
Net cash provided by (required by) financing activities			-148,789			2			43,934			—			-104,853
Net increase in cash and cash equivalents			20,486			—			—			—			20,486
Cash and cash equivalents at January 1			36,887			—			—			—			36,887
Cash and cash equivalents at December 31		$	57,373		$	—		$	—		$	—		$	57,373


CONSOLIDATING AND COMBINING STATEMENT OF CHANGES IN EQUITY



(Thousands of dollars)		Year ended December 31, 2014
Statement of Stockholders' Equity/Net Parent Investment		Parent Company			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Combined
Common Stock
Balance as of December 31, 2013		$	467		$	1		$	60		$	—		$	-61		$	467
Issuance of common stock			1			—			—			—			—			1
Balance as of December 31, 2014		$	468		$	1		$	60		$	—		$	-61		$	468
Treasury Stock
Balance as of December 31, 2013			—			—			—			—			—			—
Issuance of common stock			275			—			—			—			—			275
Repurchase of common stock			-51,348			—			—			—			—			-51,348
Balance as of December 31, 2014		$	-51,073		$	—		$	—		$	—		$	—		$	-51,073
APIC
Balance as of December 31, 2013		$	1,228,370		$	548,758		$	52,004		$	35,677		$	-1,316,516		$	548,293
Issuance of common stock			-275			—			—			—			—			-275
Shares withheld to satisfy tax withholdings			—			-582			—			—			—			-582
Reclassification of net parent investment to APIC			—			—			—			—			—			—
Share-based compensation expense			—			10,435			—			—			—			10,435
Balance as of December 31, 2014		$	1,228,095		$	558,611		$	52,004		$	35,677		$	-1,316,516		$	557,871
Net Parent Investment
Balance as of December 31, 2013		$	—		$	—		$	—		$	—		$	—		$	—
Net income			—			—			—			—			—			—
Dividend paid to former parent			—			—			—			—			—			—
Net transfers to/between former parent			—			—			—			—			—			—
Reclassification of net parent investment to APIC			—			—			—			—			—			—
Balance as of December 31, 2014		$	—		$	—		$	—		$	—		$	—		$	—
Retained Earnings
Balance as of December 31, 2013		$	—		$	38,954		$	—		$	68,622		$	—		$	107,576
Net income			351,439			312,485			-1			20,903			-440,963			243,863
Balance as of December 31, 2014		$	351,439		$	351,439		$	-1		$	89,525		$	-440,963		$	351,439



COMBINING STATEMENTS OF CHANGES IN EQUITY



(Thousands of dollars)		Year ended December 31, 2013
Statement of Stockholders' Equity/Net Parent Investment		Parent Company			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Combined
Common Stock
Balance as of December 31, 2012		$	—		$	—		$	—		$	—		$	—		$	—
Issuance of stock at the separation and distribution			467			1			60			—			-61			467
Balance as of December 31, 2013		$	467		$	1		$	60		$	—		$	-61		$	467
Treasury Stock
Balance as of December 31, 2012			—			—			—			—			—			—
Issuance of common stock			—			—			—			—			—			—
Repurchase of common stock			—			—			—			—			—			—
Balance as of December 31, 2013		$	—		$	—		$	—		$	—		$	—		$	—
APIC
Balance as of December 31, 2012		$	—		$	—		$	—		$	—		$	—		$	—
Issuance of stock at the separation and distribution						-467			—			—			—			-467
Shares withheld to satisfy tax withholdings			—			—			—			—			—			—
Reclassification of net parent investment to APIC			1,228,370			546,311			52,004			35,677			-1,316,516			545,846
Share-based compensation expense			—			2,914			—			—			—			2,914
Balance as of December 31, 2013		$	1,228,370		$	548,758		$	52,004		$	35,677		$	-1,316,516		$	548,293
Net Parent Investment
Balance as of December 31, 2012		$	—		$	1,123,467		$	53,895		$	117,550		$	-190,461		$	1,104,451
Net income			—			114,668			—			12,789			—			127,457
Dividend paid to former parent			—			-650,000			—			—			—			-650,000
Net transfers to/between former parent			—			-36,062			—			—			—			-36,062
Reclassification of net parent investment to APIC			—			-552,073			-53,895			-130,339			190,461			-545,846
Balance as of December 31, 2013		$	—		$	—		$	—		$	—		$	—		$	—
Retained Earnings
Balance as of December 31, 2012		$	—		$	—		$	—		$	—		$	—		$	—
Net income			—			38,954			—			68,622			—			107,576
Balance as of December 31, 2013		$	—		$	38,954		$	—		$	68,622		$	—		$	107,576


COMBINING STATEMENTS OF CHANGES IN EQUITY










(Thousands of dollars)		Year ended December 31, 2012
Statement of Stockholders' Equity/Net Parent Investment		Parent Company			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Combined
Common Stock
Balance as of December 31, 2011		$	—		$	—		$	—		$	—		$	—		$	—
Issuance of stock at the separation and distribution			—			—			—			—			—			—
Balance as of December 31, 2012		$	—		$	—		$	—		$	—		$	—		$	—
Treasury Stock
Balance as of December 31, 2011			—			—			—			—			—			—
Issuance of common stock			—			—			—			—			—			—
Repurchase of common stock			—			—			—			—			—			—
Balance as of December 31, 2012		$	—		$	—		$	—		$	—		$	—		$	—
APIC
Balance as of December 31, 2011		$	—		$	—		$	—		$	—		$	—		$	—
Issuance of stock at the separation and distribution			—			—			—			—			—			—
Shares withheld to satisfy tax withholdings			—			—			—			—			—			—
Reclassification of net parent investment to APIC			—			—			—			—			—			—
Share-based compensation expense			—			—			—			—			—			—
Balance as of December 31, 2012		$	—		$	—		$	—		$	—		$	—		$	—
Net Parent Investment
Balance as of December 31, 2011		$	—		$	1,043,914		$	2,166		$	263,328		$	-190,461		$	1,118,947
Net income			—			138,416			—			-54,848			—			83,568
Dividend paid to former parent			—			—			—			—			—			—
Net transfers to/between former parent			—			-58,863			51,729			-90,930			—			-98,064
Reclassification of net parent investment to APIC			—			—			—			—			—			—
Balance as of December 31, 2012		$	—		$	1,123,467		$	53,895		$	117,550		$	-190,461		$	1,104,451
Retained Earnings
Balance as of December 31, 2011		$	—		$	—		$	—		$	—		$	—		$	—
Net income			—			—			—			—			—			—
Balance as of December 31, 2012		$	—		$	—		$	—		$	—		$	—		$	—

Supplemental_Quarterly_Informa

Supplemental Quarterly Information	12 Months Ended
Supplemental Quarterly Information	Dec. 31, 2014
Supplemental Quarterly Information [Abstract]
Supplemental Quarterly Information	Murphy USA Inc. and Consolidated Subsidiaries
	Supplemental Quarterly Information (Unaudited)





		First		Second		Third		Fourth
	(Millions of dollars except per share amounts)	Quarter		Quarter		Quarter		Quarter		Year
	Year Ended December 31, 2014
	Sales and other operating revenues	$	4,164.3	$	4,757.9	$	4,678.8	$	3,608.9	$	17,209.9
	Income from continuing operations before income taxes	$	14.5	$	107.6	$	100.3	$	147.0	$	369.4
	Income from continuing operations	$	8.9	$	73.2	$	62.7	$	98.3	$	243.1
	Net income	$	9.6	$	73.2	$	62.7	$	98.3	$	243.8
	Income from continuing operations (per Common share)
	Basic	$	0.19	$	1.58	$	1.35	$	2.15	$	5.27
	Diluted	$	0.19	$	1.57	$	1.35	$	2.13	$	5.24
	Net income (per Common share)
	Basic	$	0.21	$	1.58	$	1.35	$	2.15	$	5.29
	Diluted	$	0.21	$	1.57	$	1.35	$	2.13	$	5.26
	Market price of Common stock 1
	High	$	43.25	$	52.34	$	55.64	$	69.37	$	69.37
	Low	$	37.55	$	39.96	$	47.26	$	49.63	$	37.55


	Year Ended December 31, 2013
	Sales and other operating revenues	$	4,358.0	$	4,843.4	$	4,686.9	$	4,195.0	$	18,083.3
	Income (loss) from continuing operations before income taxes	$	34.5	$	114.9	$	59.3	$	49.0	$	257.7
	Income (loss) from continuing operations	$	20.3	$	70.2	$	36.3	$	29.5	$	156.3
	Net income (loss)	$	22.1	$	77.6	$	41.7	$	93.6	$	235.0
	Income (Loss) from continuing operations (per Common share)
	Basic	$	0.43	$	1.50	$	0.78	$	0.63	$	3.34
	Diluted	$	0.43	$	1.50	$	0.78	$	0.63	$	3.34
	Net income (per Common share)
	Basic	$	0.47	$	1.66	$	0.89	$	2.00	$	5.03
	Diluted	$	0.47	$	1.66	$	0.89	$	2.00	$	5.02
	Market price of Common stock 1
	High	$	—	$	—	$	41.58	$	46.91	$	46.91
	Low	$	—	$	—	$	36.12	$	39.27	$	36.12

	1 Prices as quoted on the New York Stock Exchange. Stock first traded September 3, 2013.

Schedule_II_Valuation_And_Qual

Schedule II - Valuation And Qualifying Accounts	12 Months Ended
Schedule II - Valuation And Qualifying Accounts	Dec. 31, 2014
Schedule II - Valuation And Qualifying Accounts [Abstract]
Schedule II - Valuation And Qualifying Accounts

	SCHEDULE II – VALUATION AND QUALIFYING ACCOUNTS (CONSOLIDATED AND COMBINED)
	Murphy USA Inc.
	Valuation Accounts and Reserves







	(Thousands of dollars)	Balance at January 1,		Charged (Credited) to Expense	Deductions	Balance at December 31,

	2014
	Deducted from assets accounts
	Allowance for doubtful accounts	$	4,456	—	—	4,456

	2013
	Deducted from assets accounts
	Allowance for doubtful accounts	$	4,576	—	-120	4,456

	2012
	Deducted from assets accounts
	Allowance for doubtful accounts	$	5,835	—	-1,259	4,576

Significant_Accounting_Policie1

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2014
Significant Accounting Policies [Abstract]
Principles Of Combination

	PRINCIPLES OF COMBINATION – These consolidated and combined financial statements were prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) and include the accounts of Murphy USA Inc. and selected subsidiaries, and certain assets, liabilities, and expenses of Murphy Oil Corporation for all periods prior to August 30, 2013. All significant intercompany accounts and transactions within the consolidated and combined entity have been eliminated.

Revenue Recognition

	REVENUE RECOGNITION – Revenues from sales of refined petroleum products are recorded when deliveries have occurred and legal ownership of the commodity transfers to the customer, which may include related party sales to other subsidiaries of Murphy USA. Title transfer for bulk refined products generally occur at pipeline custody points or upon truck loading at product terminals. Refined products sold at retail stations are recorded when the customer takes delivery at the pump. Merchandise revenues are recorded at the point of sale. Rebates from vendors are recognized as a reduction of cost of goods sold when the related inventory item is sold. Incentives that are derived from contractual provisions are accrued based on past experience, when estimable, and are recognized in cost of goods sold.

	The Company enters into buy/sell and similar arrangements when petroleum products are held at one location but are needed at a different location. The Company often pays or receives funds related to the buy/sell arrangement based on location or quality differences. The Company accounts for such transactions on a net basis in its Consolidated and Combined Income Statements.

Shipping And Handling Costs

	SHIPPING AND HANDLING COSTS – Costs incurred for the shipping and handling of motor fuel are included in Petroleum product cost of goods sold in the income statement. Costs incurred for the shipping and handling of convenience store merchandise are included in Merchandise cost of goods sold in the income statement.

Taxes Collected From Customers And Remitted To Government Authorities

	TAXES COLLECTED FROM CUSTOMERS AND REMITTED TO GOVERNMENT AUTHORITIES – Excise and other taxes collected on sales of refined products and remitted to governmental agencies are included in revenues and costs and operating expenses in the Consolidated and Combined Income Statements. Excise taxes on petroleum products collected and remitted were $1,930,608,000 in 2014, $1,884,035,000 in 2013, and $1,962,660,000 in 2012.

Cash Equivalents

	CASH EQUIVALENTS – Short-term investments, which include government securities, money market funds and other instruments with government securities as collateral, that have an original maturity of three months or less from the date of purchase are classified as cash equivalents.

Accounts Receivable

	ACCOUNTS RECEIVABLE – The Company’s accounts receivable are recorded at the invoiced amount and do not bear interest. The accounts receivable primarily consists of amounts owed to the Company from credit card companies and by customers for wholesale sales of refined petroleum products and ethanol. The allowance for doubtful accounts is the Company’s best estimate of the amount of probable credit losses on these receivables. The Company reviews this allowance for adequacy at least quarterly and bases its assessment on a combination of current information about its customers and historical write-off experience. Any trade accounts receivable balances written off are charged against the allowance for doubtful accounts. The Company has not experienced any significant credit-related losses in the past three years.

Inventories

	INVENTORIES – Inventories of most finished products are valued at the lower of cost, generally applied on a last-in, first-out (“LIFO”) basis, or market. Any increments to LIFO inventory volumes are valued based on the first purchase price for these volumes during the year. Merchandise inventories held for resale are carried at average cost. Materials and supplies are valued at the lower of average cost or estimated value. Wet distillers grain with solubles (“WDGS”) and corn inventories are valued at the lower of cost, applied on a first-in, first-out (“FIFO”) basis, or market.

Vendor Allowances And Rebates

	VENDOR ALLOWANCES AND REBATES – Murphy USA receives payments for vendor allowances, volume rebates and other related payments from various suppliers of its convenience store merchandise. Vendor allowances for price markdowns are credited to merchandise cost of goods sold during the period the related markdown is recognized. Volume rebates of merchandise are recorded as reductions to merchandise cost of goods sold when the merchandise qualifying for the rebate is sold. Slotting and stocking allowances received from a vendor are recorded as a reduction to cost of sales over the period covered by the agreement.

Property, Plant and Equipment

	PROPERTY, PLANT AND EQUIPMENT – Additions to property, plant and equipment, including renewals and betterments, are capitalized and recorded at cost. Certain marketing facilities are primarily depreciated using the composite straight-line method with depreciable lives ranging from 16 to 25 years. Ethanol plants, gasoline stations and other assets are depreciated over 3 to 50 years by individual unit on the straight-line method. Gains and losses on asset disposals or retirements are included in income as a separate component of other income.

Impairment Of Assets	IMPAIRMENT OF ASSETS – Long-lived assets, which include property and equipment and finite-lived intangible assets, are tested for recoverability whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable. A long-lived asset is not recoverable if its carrying amount exceeds the sum of the undiscounted cash flows expected to result from its use and eventual disposition. If a long-lived asset is not recoverable, an impairment loss is recognized for the amount by which the carrying amount of the long-lived asset exceeds its fair value, with fair value determined based on discounted estimated net cash flows or other appropriate methods.

Turnarounds	TURNAROUNDS – Primary processing units are scheduled for major maintenance activities known as turnarounds at periodic intervals at the Company’s ethanol plant. Turnaround work associated with various other less significant units at the Company’s facilities will vary depending on operating requirements and events. The Company defers turnaround costs incurred and amortizes such costs through Station and other operating expenses over the period until the next scheduled turnaround. All other maintenance and repairs are expensed as incurred.

Asset Retirement Obligations	ASSET RETIREMENT OBLIGATIONS – The Company records a liability for asset retirement obligations (“ARO”) equal to the fair value of the estimated cost to retire an asset. The ARO liability is initially recorded in the period in which the obligation meets the definition of a liability, which is generally when the asset is placed in service. The ARO liability is estimated using existing regulatory requirements and anticipated future inflation rates. When the liability is initially recorded, the Company increases the carrying amount of the related long-lived asset by an amount equal to the original liability. The liability is increased over time to reflect the change in its present value, and the capitalized cost is depreciated over the useful life of the related long-lived asset. The Company reevaluates the adequacy of its recorded ARO liability at least annually. Actual costs of asset retirements such as dismantling service stations and site restoration are charged against the related liability. Any difference between costs incurred upon settlement of an asset retirement obligation and the recorded liability is recognized as a gain or loss in the Company’s earnings.

Environmental Liabilities	ENVIRONMENTAL LIABILITIES – A liability for environmental matters is established when it is probable that an environmental obligation exists and the cost can be reasonably estimated. If there is a range of reasonably estimated costs, the most likely amount will be recorded, or if no amount is most likely, the minimum of the range is used. Related expenditures are charged against the liability. Environmental remediation liabilities have not been discounted for the time value of future expected payments. Environmental expenditures that have future economic benefit are capitalized.

Income Taxes	INCOME TAXES – The Company accounts for income taxes using the asset and liability method. Under this method, income taxes are provided for amounts currently payable and for amounts deferred as tax assets and liabilities based on differences between the financial statement carrying amounts and the tax bases of existing assets and liabilities. Deferred income taxes are measured using the enacted tax rates that are assumed will be in effect when the differences reverse. The Company routinely assesses the realizability of deferred tax assets based on available evidence including assumptions of future taxable income, tax planning strategies and other pertinent factors. A deferred tax asset valuation allowance is recorded when evidence indicates that it is more likely than not that all or a portion of these deferred tax assets will not be realized in a future period. The accounting rules for income tax uncertainties permit recognition of income tax benefits only when they are more likely than not to be realized. The Company includes potential penalties and interest for uncertain income tax positions in income tax expense.

	The Company’s results of operations were included in the consolidated federal income tax return of Murphy Oil prior to the separation, while in most cases, these results have been included in the various state tax returns of Murphy USA historically. For these financial statements, federal and state income taxes have been computed and recorded as if the Company filed separate federal and state income tax returns. Federal and state income tax benefits of operating losses generated are recognized to the extent that they could be expected to reduce federal income tax expense for the Company via a carryback to a previous year or carried forward for use in a subsequent year. The calculations of current and deferred income taxes, therefore, require use of certain assumptions, allocations and estimates that management believes are reasonable to reflect the Company’s income taxes as a stand-alone taxpayer. The Company has elected to classify any interest expense and penalties related to the underpayment of income taxes in Income tax expense in the Consolidated and Combined Income Statements.

Derivative Instruments And Hedging Activities	DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES – The fair value of a derivative instrument is recognized as an asset or liability in the Company’s Consolidated and Combined Balance Sheets. Upon entering into a derivative contract, the Company may designate the derivative as either a fair value hedge or a cash flow hedge, or decide that the contract is not a hedge, and therefore, recognize changes in the fair value of the contract in earnings. The Company documents the relationship between the derivative instrument designated as a hedge and the hedged items as well as its objective for risk management and strategy for use of the hedging instrument to manage the risk. Derivative instruments designated as fair value or cash flow hedges are linked to specific assets and liabilities or to specific firm commitments or forecasted transactions. The Company assesses at inception and on an ongoing basis whether a derivative instrument used as a hedge is highly effective in offsetting changes in the fair value or cash flows of the hedged item. A derivative that is not a highly effective hedge does not qualify for hedge accounting. Changes in the fair value of a qualifying fair value hedge are recorded in earnings along with the gain or loss on the hedged item. Changes in the fair value of a qualifying cash flow hedge are recorded in other comprehensive income until the hedged item is recognized in earnings. When the income effect of the underlying cash flow hedged item is recognized in the Statement of Income, the fair value of the associated cash flow hedge is reclassified from other comprehensive income into earnings. Ineffective portions of a cash flow hedge derivative’s change in fair value are recognized currently in earnings. If a derivative instrument no longer qualifies as a cash flow hedge and the underlying forecasted transaction is no longer probable of occurring, hedge accounting is discontinued and the gain or loss recorded in other comprehensive income is recognized immediately in earnings. See Note 13 and Note 16 for further information about the Company’s derivatives.

Stock-Based Compensation	STOCK-BASED COMPENSATION – The fair value of awarded stock options, restricted stock and restricted stock units is determined based on a combination of management assumptions for awards issued subsequent to the separation from Murphy Oil and the previously calculated fair market value of awards that were replaced with Murphy USA awards in connection with the separation. Murphy Oil used the Black-Scholes option pricing model for computing the fair value of stock options. The primary assumptions made by management included the expected life of the stock option award and the expected volatility of Murphy Oil’s common stock prices. Murphy Oil used both historical data and current information to support its assumptions. Stock option expense is recognized on a straight-line basis over the respective vesting period of two or three years. Murphy Oil used a Monte Carlo valuation model to determine the fair value of performance-based restricted stock and restricted stock units and the related expense is recognized over the three-year vesting period. Management estimates the number of stock options and performance-based restricted stock and restricted stock units that will not vest and adjusts its compensation expense accordingly. Differences between estimated and actual vested amounts are accounted for as an adjustment to expense when known. See Note 11 for a discussion of the basis of allocation of such costs.

Net Investment By Former Parent	NET INVESTMENT BY FORMER PARENT– The Net investment by former parent represented a net balance reflecting Murphy Oil’s initial investment in the Company and subsequent adjustments resulting from the operations of the Company and various transactions between the Company and Murphy Oil. The balance is the result of the Company’s participation in Murphy Oil’s centralized cash management program under which all the Company’s cash receipts were remitted to Murphy Oil and all cash disbursements are funded by Murphy Oil. The net balance included amounts due from or owed to Murphy Oil. Other transactions affecting the Net investment by Murphy Oil included general and administrative expenses incurred by Murphy Oil and allocated to the Company. There were no terms of settlement or interest charges associated with the Net investment by Murphy Oil balance. Changes in amounts owed to or due from Murphy Oil were included in financing activities in the Statements of Cash Flows. All transactions affecting the balance of this account ceased at the separation.

Use Of Estimates	USE OF ESTIMATES – In preparing the financial statements of the Company in conformity with U.S. GAAP, management has made a number of estimates and assumptions related to the reporting of assets, liabilities, revenues, and expenses and the disclosure of contingent assets and liabilities. Actual results may differ from the estimates. On an ongoing basis, we review our estimates based on currently available information. Changes in facts and circumstances may result in revised estimates.

Discontinued_Operations_Tables

Discontinued Operations (Tables)	12 Months Ended
Discontinued Operations (Tables)	Dec. 31, 2014
Discontinued Operations [Abstract]
Summary Of Results Of Operations Of Discontinued Operations

	(Thousands of dollars)	2014		2013		2012
	Revenues	$	—	$	366,707	$	354,128
	Income (loss) from operations before income taxes		—		40,130		-4,377
	Gain on sale before income taxes		1,202		80,834		—
	Total income (loss) from discontinued operations before taxes		1,202		120,964		-4,377
	Provision for income taxes		421		42,257		-1,531
	Income (loss) from discontinued operations	$	781	$	78,707	$	-2,846

Inventories_Tables

Inventories (Tables)	12 Months Ended
Inventories (Tables)	Dec. 31, 2014
Inventories [Abstract]
Summary Of Inventory


		December 31,
	(Thousands of dollars)	2014		2013
	Finished products - FIFO basis	$	205,213	$	372,531
	Less LIFO - finished products		-144,283		-307,706
	Finished products - LIFO basis		60,930		64,825
	Store merchandise for resale		98,712		97,058
	Corn based products		17,873		12,447
	Materials and supplies		5,399		4,725
	Total inventories	$	182,914	$	179,055

Property_Plant_And_Equipment_T

Property, Plant And Equipment (Tables)	12 Months Ended
Property, Plant And Equipment (Tables)	Dec. 31, 2014
Property, Plant And Equipment [Abstract]
Summary Of Property, Plant And Equipment

			31-Dec-14			31-Dec-13
	(Thousands of dollars)	Estimated Useful Life		Cost	Net		Cost	Net
	Land		$	527,642	527,642		520,026	520,026
	Ethanol facilities	20 years		70,802	4,481		67,284	1,082
	Pipeline and terminal facilities	16 to 25 years		88,447	36,384		85,907	36,114
	Retail gasoline stations	3 to 50 years		1,229,582	662,954		1,110,340	611,132
	Buildings	20 to 45 years		18,160	8,328		17,829	8,608
	Other	3 to 20 years		48,693	13,335		44,697	13,761
			$	1,983,326	1,253,124		1,846,083	1,190,723

Accounts_Payable_And_Accrued_L

Accounts Payable And Accrued Liabilities (Tables)	12 Months Ended
Accounts Payable And Accrued Liabilities (Tables)	Dec. 31, 2014
Accounts Payable And Accrued Liabilities [Abstract]
Schedule Of Accounts Payable And Accrued Liabilities

		December 31,
	(Thousands of dollars)	2014		2013
	Trade accounts payable	$	230,919		311,397
	Excise taxes/withholdings payable		71,273		55,882
	Accrued insurance obligations		19,621		17,247
	Other		65,186		48,702
	Accounts payable and accrued liabilities	$	386,999		433,228

LongTerm_Debt_Tables

Long-Term Debt (Tables)	12 Months Ended
Long-Term Debt (Tables)	Dec. 31, 2014
Long-Term Debt [Abstract]
Summary Of Long-Term Debt

		December 31,
	(Thousands of dollars)	2014		2013
	6% senior notes due 2023 (net of unamortized discount of $7,557 at 2014 and $8,422 at 2013)	$	492,443	$	491,578
	Term loan due 2016 (effective rate of 3.71% at December 31, 2013)		—		70,000
	Less current maturities		—		-14,000
	Total long-term debt	$	492,443	$	547,578

Asset_Retirement_Obligations_T

Asset Retirement Obligations (Tables)	12 Months Ended
Asset Retirement Obligations (Tables)	Dec. 31, 2014
Asset Retirement Obligations (ARO) [Abstract]
Reconciliation Of Beginning And Ending Aggregate Carrying Amount Of Asset Retirement Obligation

		December 31,
	(Thousands of dollars)	2014		2013
	Balance at beginning of period	$	17,130		15,401
	Accretion expense		1,200		1,096
	Liabilities incurred		3,915		633
	Balance at end of period	$	22,245		17,130

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
Income Taxes (Tables)	Dec. 31, 2014
Income Taxes [Abstract]
Summary Of Effective Income Tax Rates

		Years Ended December 31,
	(Thousands of dollars)	2014		2013		2012
	Income (loss) from continuing operations before income taxes	$	369,423		257,677		150,119
	Income tax expense (benefit)
	Federal - Current	$	125,742		89,700		64,059
	Federal - Deferred		2,989		-4,761		-17,098
	State - Current and deferred		-2,390		16,412		16,744
	Total	$	126,341		101,351		63,705


Schedule Of Reconciliation Of Income Taxes To Statutory Rate

		Years Ended December 31,
	(Thousands of dollars)	2014		2013		2012
	Income tax expense based on the U.S. statutory tax rate	$	129,298		90,187		52,542
	State income taxes, net of federal benefit		-1,554		10,668		10,884
	Other, net		-1,403		496		279
	Total	$	126,341		101,351		63,705


Summary Of Deferred Tax Assets And Deferred Tax Liabilities

		Years Ended December 31,
	(Thousands of dollars)	2014		2013
	Deferred tax assets
	Property costs	$	1,692		6,456
	Asset retirement obligations		465		5,844
	Employee benefits		9,712		3,090
	Other deferred tax assets		8,995		6,389
	Total gross deferred tax assets		20,864		21,779
	Less valuation allowance		—		—
	Net deferred tax assets		20,864		21,779
	Deferred tax liabilities
	Accumulated depreciation and amortization		-114,262		-115,737
	State deferred taxes		-16,855		-16,423
	Other deferred tax liabilities		-8,837		-11,694
	Total gross deferred tax liabilities		-139,954		-143,854
	Net deferred tax liabilities	$	-119,090		-122,075


Reconciliation of Beginning and Ending Liability For Uncertain Tax Positions

		Year Ended December 31,
	(Thousands of dollars)	2014

	Balance at January 1	$	—
	Additions for tax positions related to prior year		10,086
	Additions for tax positions related to current year		77
	Settlements with taxing authorities		-1,563
	Expiration of statutes of limitation		-2,499

	Balance at December 31	$	6,101

Incentive_Plans_Tables

Incentive Plans (Tables)	12 Months Ended
Incentive Plans (Tables)	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Summary Of Amounts Recognized In Financial Statements With Respect To Share-Based Plans

			Years Ended December 31,
	(Thousands of dollars)		2014			2013			2012
	Compensation charged against income before income tax benefit		$	10,435			9,391			8,416
	Related income tax benefit recognized in income			3,652			3,287			2,946


Summary Of Changes In Stock Options Outstanding	Changes in options outstanding for Company employees during the period from August 30, 2013 to December 31, 2014 are presented in the following table:

			Number of Shares		Average Exercise Price
	Outstanding at December 31, 2012		—		$	—
	Granted at FMV		625,101			35.12
	Exercised		—			—
	Forfeited		-3,952			33.92
	Outstanding at December 31, 2013		621,149			35.13
	Granted at FMV		127,400			39.46
	Exercised		-74,766			34.21
	Forfeited		-13,148			38.36
	Outstanding at December 31, 2014		660,635			36.00

	Exercisable at December 31, 2013		—		$	—
	Exercisable at December 31, 2014		88,445			34.54


Summary Of Additional Stock Option Information

			Options Outstanding							Options Exercisable
	Range of Exercise Prices per Option		No. of Options		Avg. Life Remaining in Years		Aggregate Intrinsic Value			No. of Options	Avg. Life Remaining in Years	Aggregate Intrinsic Value
	$32.53 to $37.06		386,119		4.7		$	13,634,984		49,228	4.1	$	1,788,414
	$37.07 to $39.45		39,217		3.1			1,246,599		39,217	3.1		1,246,599
	$39.46 to $40.25		235,299		5.7			6,823,643		—	—		—
			660,635		5.0		$	21,705,226		88,445	3.6	$	3,035,013


MUSA 2013 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Summary Of Valuation Assumptions
		Year ended December 31,
		2014
	Fair value per option grant	$	11.44
	Assumptions
	Dividend yield		—
	Expected volatility		31.7%
	Risk-free interest rate		1.37%
	Expected life		4.6 years


Murphy Oil Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Summary Of Valuation Assumptions

		Years ended December 31,
		2012 and 2011
	Fair value per option grant	$	12.37 - 20.34
	Assumptions
	Dividend yield		1.80% - 2.27%
	Expected volatility		37.00% - 39.62%
	Risk-free interest rate		0.55% - 2.10%
	Expected life		4.00 yrs. - 5.20 yrs.



Restricted Stock Units [Member] \| MUSA 2013 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Summary Of Restricted Stock Unit Activity

	(Number of units)		Employee RSU's
	Outstanding at December 31, 2012		—
	Granted		352,522
	Vested and issued		-509
	Forfeited		-4,915
	Outstanding at December 31, 2013		347,098
	Granted		93,025
	Vested and issued		-20,680
	Forfeited		-22,428
	Outstanding at December 31, 2014		397,015



Restricted Stock Units [Member] \| 2013 Stock Plan For Non-Employee Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Summary Of Restricted Stock Unit Activity

	(Number of units)		Director RSU's
	Outstanding at December 31, 2012		—
	Granted		28,413
	Vested and issued		—
	Forfeited		—
	Outstanding at December 31, 2013		28,413
	Granted		22,437
	Vested and issued		—
	Forfeited		—
	Outstanding at December 31, 2014		50,850




Performance Units [Member] \| MUSA 2013 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Summary Of Restricted Stock Unit Activity
	(Number of units)		Employee PSU's
	Outstanding at December 31, 2013		—
	Granted		78,500
	Vested and issued		—
	Forfeited		-6,500
	Outstanding at December 31, 2014		72,000

Employee_And_Retiree_Benefit_P1

Employee And Retiree Benefit Plans (Tables)	12 Months Ended
Employee And Retiree Benefit Plans (Tables)	Dec. 31, 2014
Employee And Retiree Benefit Plans [Abstract]
Summary Of Components Of Net Periodic Benefit Expense

			Years ended December 31,

			Pension Benefits					Other Postretirement Benefits
	(Thousands of dollars)		2013			2012		2013		2012
	Service cost		$	3,401		$	4,227	$	1,447	$	1,770
	Interest cost			2,717			4,252		983		1,454
	Expected return on plan assets			-2,794			-3,860		—		—
	Amortization of prior service cost (benefits)			53			90		-7		-10
	Recognized actuarial loss			2,108			2,986		363		369
	Termination benefits expense			—			—		—		—
	Curtailment expense			—			—		—		—
	Net periodic benefit expense		$	5,485		$	7,695	$	2,786	$	3,583



Summary Of Weighted-Average Assumptions Used In The Measurement Of Net Periodic Benefit Expense
		Net Periodic Benefit Expenses
		Pension Benefits			Postretirement Benefits
		2012			2012
	Discount rate		4.87%			4.87%
	Expected return on plan assets		6.50%			0%
	Rate of compensation increase		4.20%			0%

Financial_Instruments_And_Risk1

Financial Instruments And Risk Management (Tables)

12 Months Ended

Dec. 31, 2014

Financial Instruments And Risk Management [Abstract]

Fair Value Of Derivative Instruments Not Designated As Hedging Instruments

31-Dec-14

31-Dec-13

Asset Derivatives

Liabilitiy Derivatives

Asset Derivatives

Liabilitiy Derivatives

Balance

Sheet

Fair

Sheet

Fair

Sheet

Fair

Sheet

Fair

(Thousands of dollars)

Location

Value

Location

Value

Location

Value

Location

Value

Commodity derivative contracts

Accounts Receivable

Accounts Payable

2,204

Accounts Receivable

224

Accounts Payable

291

Recognized Gains And Losses For Derivative Instruments Not Designated As Hedging Instruments

Amount of Gain (Loss) Recognized

in Income on Derivative

(Thousands of dollars)

Statement of Income

Type of Derivative Contract

Location

2014

2013

Commodity

Fuel and ethanol costs of goods sold

921

8,516

Summary Of Offsetting Assets

Gross Amounts

Net Amounts of

Gross Amounts

Offset in the

Assets Presented in

of Recognized

Combined

the Combined

(Thousands of dollars)

Assets

Balance Sheet

At December 31, 2014

Commodity derivatives

-19

At December 31, 2013

Commodity derivatives

233

-9

224

Summary Of Offsetting Liabilities

Gross Amounts

Net Amounts of

Gross Amounts

Offset in the

Liabilities Presented

of Recognized

Consolidated

in the Consolidated

(Thousands of dollars)

Liabilities

Balance Sheet

At December 31, 2014

Commodity derivatives

2,223

-19

2,204

At December 31, 2013

Commodity derivatives

300

-9

291

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	12 Months Ended
Earnings Per Share (Tables)	Dec. 31, 2014
Earnings Per Share [Abstract]
Reconciliation of Basic And Diluted Earnings Per Share Computations
		Years ended December 31,
	(Thousands of dollars except per share amounts)	2014		2013		2012
	Earnings per common share:
	Net income attributable to common stockholders	$	243,863	$	235,033	$	83,568
	Weighted average common shares outstanding (in thousands)		46,104		46,743		46,743
	Total earnings per share	$	5.29	$	5.03	$	1.79

	Earnings per common share - assuming dilution:	Years ended December 31,
		2014		2013		2012
	Net income attributable to common stockholders	$	243,863	$	235,033	$	83,568
	Weighted average common shares outstanding (in thousands)		46,104		46,743		46,743
	Common equivalent shares:
	Dilutive options		313		115		—
	Weighted average common shares outstanding - assuming dilution (in thousands)		46,417		46,858		46,743
	Earnings per share - assuming dilution	$	5.26	$	5.02	$	1.79

Other_Financial_Information_Ta

Other Financial Information (Tables)	12 Months Ended
Other Financial Information (Tables)	Dec. 31, 2014
Other Financial Information [Abstract]
Schedule Of Ethanol Sales And Other Revenue

	(Thousands of dollars)	2014		2013		2012
	Sales of ethanol and related plant products	$	223,831	$	269,254	$	290,158
	Renewable Identification Numbers (RINs) sales		92,916		91,391		8,830
	Other		3,267		2,907		2,988
	Total ethanol sales and other revenue	$	320,014	$	363,552	$	301,976


Summary Of Changes In Operating Working Capital


	(Thousands of dollars)	2014		2013		2012
	Accounts receivable	$	59,171	$	331,679	$	-171,115
	Inventories		-3,858		20,532		-29,784
	Prepaid expenses and other current assets		637		-6,623		-3,187
	Deferred income tax assets		—		—		—
	Accounts payable and accrued liabilities		-50,972		-272,371		230,704
	Income taxes payable		-30,782		7,276		4,396
	Current deferred income tax liabilities		-6,662		-5,628		1,539
	Net decrease (increase) in noncash operating working capital	$	-32,466	$	74,865	$	32,553

Assets_And_Liabilities_Measure1

Assets And Liabilities Measured At Fair Value (Tables)

12 Months Ended

Dec. 31, 2014

Assets And Liabilities Measured At Fair Value [Abstract]

Schedule Of Fair Value Of Assets And Liabilities

Fair Value Measurements

at Reporting Date Using

Quoted Prices

Significant

In Active Markets

Other

Significant

Fair Value

for Identical

Observable

Unobservable

December 31,

Assets/(Liabilities)

Inputs

(Thousands of dollars)

2014

(Level 1)

(Level 2)

(Level 3)

Assets

Commodity derivative contracts

—

Liabilities

Commodity derivative contracts

-2,204

—

-2,204

—

Fair Value Measurements

at Reporting Date Using

Quoted Prices

Significant

In Active Markets

Other

Significant

Fair Value

for Identical

Observable

Unobservable

December 31,

Assets/(Liabilities)

Inputs

(Thousands of dollars)

2013

(Level 1)

(Level 2)

(Level 3)

Assets

Commodity derivative contracts

224

—

224

—

Liabilities

Commodity derivative contracts

-291

—

-291

—

Schedule Of Carrying Amounts And Estimated Fair Value Of Financial Instruments

31-Dec-14

31-Dec-13

Carrying

(Thousands of dollars)

Amount

Fair Value

Amount

Fair Value

Financial liabilities

Current and long-term debt

-492,443

-510,344

-561,578

-559,411

Business_Segments_Tables

Business Segments (Tables)	12 Months Ended
Business Segments (Tables)	Dec. 31, 2014
Business Segments [Abstract]
Summary Of Information By Business Segment

	Segment Information			Corporate and		Discontinued
	(Thousands of dollars)	Marketing		Other Assets		Operations		Consolidated
	Year ended December 31, 2014
	Segment income (loss)	$	242,434		648		781	$	243,863
	Revenues from external customers		16,985,903		224,016		—		17,209,919
	Interest income		—		244		—		244
	Interest expense		—		-36,646		—		-36,646
	Income tax expense (benefit)		127,657		-1,316		—		126,341
	Significant noncash charges (credits)
	Depreciation and amortization		74,906		4,328		—		79,234
	Accretion of asset retirement obligations		1,200		—		—		1,200
	Deferred and noncurrent income taxes (benefits)		368		-1,400		—		-1,032
	Additions to property, plant and equipment		131,139		7,749		—		138,888
	Total assets at year-end	$	1,544,018		390,239		—	$	1,934,257







	Segment Information			Corporate and		Discontinued
	(Thousands of dollars)	Marketing		Other Assets		Operations		Consolidated
	Year ended December 31, 2013
	Segment income (loss)	$	164,013		-7,687		78,707	$	235,033
	Revenues from external customers		17,814,081		269,254		—		18,083,335
	Interest income		—		1,099		—		1,099
	Interest expense		—		-14,509		—		-14,509
	Income tax expense (benefit)		106,223		-4,872		—		101,351
	Significant noncash charges (credits)
	Depreciation and amortization		71,253		2,877		—		74,130
	Accretion of asset retirement obligations		1,096		—		—		1,096
	Deferred and noncurrent income taxes (benefits)		-9,796		2,534		—		-7,262
	Additions to property, plant and equipment		162,051		9,402		519		171,972
	Total assets at year-end	$	1,527,125		354,117		—	$	1,881,242

	Year ended December 31, 2012
	Segment income (loss)	$	139,583		-53,169		-2,846	$	83,568
	Revenues from external customers		19,011,040		290,268		—		19,301,308
	Interest income		—		172		—		172
	Interest expense		—		-384		—		-384
	Income tax expense (benefit)		92,059		-28,354		—		63,705
	Significant noncash charges (credits)
	Depreciation and amortization		66,913		4,827		—		71,740
	Accretion of asset retirement obligations		980		—		—		980
	Impairment of properties		—		60,988		—		60,988
	Deferred and noncurrent income taxes (benefits)		3,393		-19,856		—		-16,463
	Additions to property, plant and equipment		103,096		1,400		7,097		111,593
	Total assets at year-end	$	1,765,020		111,025		116,420	$	1,992,465

Guarantor_Subsidiaries_Tables

Guarantor Subsidiaries (Tables)	12 Months Ended
Guarantor Subsidiaries (Tables)	Dec. 31, 2014
Guarantor Subsidiaries [Abstract]
Consolidating Balance Sheet	CONSOLIDATING BALANCE SHEET




	(Thousands of dollars)		31-Dec-14
	Assets		Parent Company			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
	Current assets
	Cash and cash equivalents		$	—		$	327,163		$	—		$	942		$	—		$	328,105
	Accounts receivable—trade, less allowance for doubtful accounts of $4,456 in 2014			—			138,466			—			1,625			—			140,091
	Inventories, at lower of cost or market			—			157,046			—			25,868			—			182,914
	Prepaid expenses and other current assets			—			11,710			—			3,062			—			14,772
	Total current assets			—			634,385			—			31,497			—			665,882
	Property, plant and equipment, at cost less accumulated depreciation and amortization of $730,202 in 2014			—			1,248,081			—			5,043			—			1,253,124
	Investments in subsidiaries			1,580,277			177,263			—			—			-1,757,540			—
	Other assets			—			14,736			—			515			—			15,251
	Deferred tax assets			—			—			—			19,273			-19,273			—
	Total assets		$	1,580,277		$	2,074,465		$	—		$	56,328		$	-1,776,813		$	1,934,257
	Liabilities and Stockholders' Equity
	Current liabilities
	Current maturities of long-term debt		$	—		$	—		$	—		$	—		$	—		$	—
	Inter-company accounts payable			51,348			82,528			-52,077			-81,799						—
	Trade accounts payable and accrued liabilities			—			381,271			—			5,728			—			386,999
	Income taxes payable			—			18,348			14			7,238			—			25,600
	Deferred income taxes			—			522			—			-41			—			481
	Total current liabilities			51,348			482,669			-52,063			-68,874			—			413,080
	Long-term debt			—			492,443			—			—			—			492,443
	Deferred income taxes			—			137,882			—			—			-19,273			118,609
	Asset retirement obligations			—			22,245			—			—			—			22,245
	Deferred credits and other liabilities			—			29,175			—			—			—			29,175
	Total liabilities			51,348			1,164,414			-52,063			-68,874			-19,273			1,075,552
	Stockholders' Equity
	Preferred Stock, par $0.01 (authorized 20,000,000 shares, none outstanding)			—			—			—			—			—			—
	Common Stock, par $0.01 (authorized 200,000,000 shares, 46,767,164 shares issued at December 31, 2014)			468			1			60			—			-61			468
	Treasury stock (1,056,689 shares held at December 31, 2014)			-51,073			—			—			—			—			-51,073
	Additional paid in capital (APIC)			1,228,095			558,611			52,004			35,677			-1,316,516			557,871
	Retained earnings			351,439			351,439			-1			89,525			-440,963			351,439
	Total stockholders' equity			1,528,929			910,051			52,063			125,202			-1,757,540			858,705
	Total liabilities and stockholders' equity		$	1,580,277		$	2,074,465		$	—		$	56,328		$	-1,776,813		$	1,934,257


	COMBINING BALANCE SHEET




	(Thousands of dollars)		31-Dec-13
	Assets		Parent Company			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
	Current assets
	Cash and cash equivalents		$	—		$	294,741		$	—		$	—		$	—		$	294,741
	Accounts receivable—trade, less allowance for doubtful accounts of $4,456 in 2013			—			191,904			—			1,277			—			193,181
	Inventories, at lower of cost or market			—			157,795			—			21,260			—			179,055
	Prepaid expenses and other current assets			—			12,217			—			3,222			—			15,439
	Total current assets			—			656,657			—			25,759			—			682,416
	Property, plant and equipment, at cost less accumulated depreciation and amortization of $655,360 in 2013			—			1,189,082			—			1,641			—			1,190,723
	Investments in subsidiaries			1,228,837			—			—			—			-1,228,837			—
	Other assets			—			95,604			—			239			-87,740			8,103
	Deferred tax assets			—			—			—			—			—			—
	Total assets		$	1,228,837		$	1,941,343		$	—		$	27,639		$	-1,316,577		$	1,881,242
	Liabilities and Stockholders' Equity
	Current liabilities
	Current maturities of long-term debt		$	—		$	14,000		$	—		$	—		$	—		$	14,000
	Inter-company accounts payable			—			119,366			-52,107			-67,259			—			—
	Trade accounts payable and accrued liabilities			—			429,763			—			3,465			—			433,228
Income taxes payable			—			71,450			43			653			—			72,146
Deferred income taxes			—			7,143			—			—			—			7,143
Total current liabilities			—			641,722			-52,064			-63,141			—			526,517
Long-term debt			—			547,578			—			—			—			547,578
Deferred income taxes			—			128,451			—			-13,519			—			114,932
Asset retirement obligations			—			17,130			—			—			—			17,130
Deferred credits and other liabilities			—			18,749			—			—			—			18,749
Total liabilities			—			1,353,630			-52,064			-76,660			—			1,224,906
Stockholders' Equity
Preferred Stock, par $0.01 (authorized 20,000,000 shares, none outstanding)			—			—			—			—			—			—
Common Stock, par $0.01 (authorized 200,000,000 shares, 46,746,633 shares issued and outstanding at December 31, 2013)			467			1			60			—			-61			467
Treasury stock			—			—			—			—			—			—
Additional paid in capital (APIC)			1,228,370			548,758			52,004			35,677			-1,316,516			548,293
Retained earnings			—			38,954			—			68,622			—			107,576
Total stockholders' equity			1,228,837			587,713			52,064			104,299			-1,316,577			656,336
Total liabilities and stockholders' equity		$	1,228,837		$	1,941,343		$	—		$	27,639		$	-1,316,577		$	1,881,242


Consolidating Income Statement	CONSOLIDATING AND COMBINING INCOME STATEMENT


	(Thousands of dollars)		Year ended December 31, 2014
	Revenues		Parent Company			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated and Combined
	Petroleum product sales		$	—		$	14,911,658		$	—		$	—		$	-183,131		$	14,728,527
	Merchandise sales			—			2,161,378			—			—			—			2,161,378
	Ethanol sales and other			—			96,109			—			223,905			—			320,014
	Total revenues			—			17,169,145			—			223,905			-183,131			17,209,919
	Costs and operating expenses
	Petroleum product cost of goods sold			—			14,257,710			—			—			-183,131			14,074,579
	Merchandise cost of goods sold			—			1,859,732			—			—			—			1,859,732
	Ethanol cost of goods sold			—			—			—			158,276			—			158,276
	Station and other operating expenses			—			486,762			—			34,764			—			521,526
	Depreciation and amortization			—			79,087			—			147			—			79,234
	Impairment of properties			—			—			—			—			—			—
	Selling, general and administrative			—			119,265			1			1,635			—			120,901
	Accretion of asset retirement obligations			—			1,200			—			—			—			1,200
	Total costs and operating expenses			—			16,803,756			1			194,822			-183,131			16,815,448
	Income from operations			—			365,389			-1			29,083			—			394,471
	Other income (expense)
	Interest income			—			244			—			—			—			244
	Interest expense			—			-36,646			—			—			—			-36,646
	Gain (loss) on sale of assets			—			194			—			—			—			194
	Other nonoperating income			—			10,166			—			994			—			11,160
	Total other income (expense)			—			-26,042			—			994			—			-25,048
	Income from continuing operations before income taxes			—			339,347			-1			30,077			—			369,423
	Income tax expense			—			116,386			—			9,955			—			126,341
	Income from continuing operations			—			222,961			-1			20,122			—			243,082
	Income (loss) from discontinued operations, net of income taxes			—			—			—			781			—			781
	Equity earnings in affiliates, net of tax			351,439			89,524			—			—			-440,963			—
	Net Income		$	351,439		$	312,485		$	-1		$	20,903		$	-440,963		$	243,863


	COMBINING INCOME STATEMENT


	(Thousands of dollars)		Year ended December 31, 2013
	Revenues		Parent Company			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated and Combined
	Petroleum product sales		$	—		$	15,766,752		$	—		$	—		$	-206,435		$	15,560,317
	Merchandise sales			—			2,159,466			—			—			—			2,159,466
	Ethanol sales and other			—			94,298			—			269,254			—			363,552
	Total revenues			—			18,020,516			—			269,254			-206,435			18,083,335
	Costs and operating expenses
	Petroleum product cost of goods sold			—			15,216,390			—			—			-206,435			15,009,955
	Merchandise cost of goods sold			—			1,877,630			—			—			—			1,877,630
	Ethanol cost of goods sold			—			—			—			228,899			—			228,899
	Station and other operating expenses			—			460,476			—			33,227			—			493,703
	Depreciation and amortization			—			74,053			—			77			—			74,130
	Impairment of properties			—			—			—			—			—			—
	Selling, general and administrative			—			129,430			1			3,568			—			132,999
	Accretion of asset retirement obligations			—			1,096			—			—			—			1,096
	Total costs and operating expenses			—			17,759,075			1			265,771			-206,435			17,818,412
	Income from operations			—			261,441			-1			3,483			—			264,923
	Other income (expense)
	Interest income			—			1,099			—			—			—			1,099
	Interest expense			—			-14,509			—			—			—			-14,509
	Gain (loss) on sale of assets			—			5,995			—			—			—			5,995
	Other nonoperating income			—			169			—			—			—			169
	Total other income (expense)			—			-7,246			—			—			—			-7,246
	Income from continuing operations before income taxes			—			254,195			-1			3,483			—			257,677
	Income tax expense			—			100,059			—			1,292			—			101,351
	Income from continuing operations			—			154,136			-1			2,191			—			156,326
	Income (loss) from discontinued operations, net of income taxes			—			—			—			78,707			—			78,707
Equity earnings in affiliates, net of tax			—			—			—			—			—			—
Net Income		$	—		$	154,136		$	-1		$	80,898		$	—		$	235,033


COMBINING INCOME STATEMENT


(Thousands of dollars)		Year ended December 31, 2012
Revenues		Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Combined
Petroleum product sales		$	17,071,126		$	—		$	—		$	-216,141		$	16,854,985
Merchandise sales			2,144,347			—			—			—			2,144,347
Ethanol sales and other			11,708			—			290,268			—			301,976
Total revenues			19,227,181			—			290,268			-216,141			19,301,308
Costs and operating expenses
Petroleum product cost of goods sold			16,514,457			—			—			-216,141			16,298,316
Merchandise cost of goods sold			1,855,641			—			—			—			1,855,641
Ethanol cost of goods sold			—			—			269,168			—			269,168
Station and other operating expenses			447,103			—			33,006			—			480,109
Depreciation and amortization			68,299			—			3,441			—			71,740
Impairment of properties			—			—			60,988			—			60,988
Selling, general and administrative			109,634			2			3,486			—			113,122
Accretion of asset retirement obligations			980			—			—			—			980
Total costs and operating expenses			18,996,114			2			370,089			-216,141			19,150,064
Income from operations			231,067			-2			-79,821			—			151,244
Other income (expense)
Interest income			172			—			—			—			172
Interest expense			-384			—			—			—			-384
Gain (loss) on sale of assets			-1,005			—			—			—			-1,005
Other nonoperating income			92			—			—			—			92
Total other income (expense)			-1,125			—			—			—			-1,125
Income from continuing operations before income taxes			229,942			-2			-79,821			—			150,119
Income tax expense			91,525			—			-27,820			—			63,705
Income from continuing operations			138,417			-2			-52,001			—			86,414
Income from discontinued operations, net of income taxes			—			—			-2,846			—			-2,846
Equity earnings in affiliates, net of tax			—			—			—			—			—
Net Income		$	138,417		$	-2		$	-54,847		$	—		$	83,568


Consolidating Statement Of Cash Flow	CONSOLIDATING AND COMBINING STATEMENT OF CASH FLOW



	(Thousands of dollars)		Year ended December 31, 2014
	Operating Activities		Parent Company			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated and Combined
	Net income		$	351,439		$	312,485		$	-1		$	20,903		$	-440,963		$	243,863
	Adjustments to reconcile net income (loss) to net cash provided by operating activities
	Income from discontinued operations, net of tax			—			—			—			-781			—			-781
	Depreciation and amortization			—			79,087			—			147			—			79,234
	Amortization of deferred major repair costs			—			—			—			1,093			—			1,093
	Deferred and noncurrent income tax charges (credits)			—			-4,403			—			3,371			—			-1,032
	Impairment of properties			—			—			—			—			—			—
	Accretion on discounted liabilities			—			1,200			—			—			—			1,200
	Pretax gains from sale of assets			—			-194			—			—			—			-194
	Net decrease (increase) in noncash operating working capital			—			-36,475			—			4,009			—			-32,466
	Equity in earnings			-351,439			-89,524			—			—			440,963			—
	Other operating activities - net			—			14,531			—			—			—			14,531
	Net cash provided by (required by) continuing operations			—			276,707			-1			28,742			—			305,448
	Net cash provided by discontinued operations			—			—			—			134			—			134
	Net cash provided by (required by) operating activities			—			276,707			-1			28,876			—			305,582
	Investing Activities
	Property additions			—			-135,339			—			-3,549			—			-138,888
	Proceeds from sale of assets			—			376			—			—			—			376
	Expenditures for major repairs			—			—			—			-1,369			—			-1,369
	Other investing activities - net			—			-10,631			—			—			—			-10,631
	Sales proceeds			—			—			—			1,097			—			1,097
	Other			—			—			—			—			—			—
	Net cash required by investing activities			—			-145,594			—			-3,821			—			-149,415
	Financing Activities
	Purchase of treasury stock			-51,348			—			—			—			—			-51,348
	Repayments of long-term debt			—			-70,000			—			—			—			-70,000
	Additions to long-term debt			—			—			—			—			—			—
	Cash dividend to former parent			—			—			—			—			—			—
	Debt issuance costs			—			-875			—			—			—			-875
	Amounts related to share-based compensation			—			-580			—			—			—			-580
	Net distributions to parent			51,348			-27,236			1			-24,113			—			—
	Net cash provided by (required by) financing activities			—			-98,691			1			-24,113			—			-122,803
	Net increase in cash and cash equivalents			—			32,422			—			942			—			33,364
	Cash and cash equivalents at January 1			—			294,741			—			—			—			294,741
	Cash and cash equivalents at December 31		$	—		$	327,163		$	—		$	942		$	—		$	328,105


	COMBINING STATEMENT OF CASH FLOW



	(Thousands of dollars)		Year ended December 31, 2013
	Operating Activities		Parent Company			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated and Combined
	Net income (loss)		$	—		$	154,136		$	-1		$	80,898		$	—		$	235,033
	Adjustments to reconcile net income (loss) to net cash provided by operating activities
	Income from discontinued operations, net of tax			—			—			—			-78,707			—			-78,707
	Depreciation and amortization			—			74,053			—			77			—			74,130
	Amortization of deferred major repair costs			—			—			—			575			—			575
	Deferred and noncurrent income tax charges (credits)			—			-11,568			—			4,306			—			-7,262
	Impairment of properties			—			—			—			—			—			—
	Accretion on discounted liabilities			—			1,096			—			—			—			1,096
	Pretax gains from sale of assets			—			-5,995			—			—			—			-5,995
	Net decrease in noncash operating working capital			—			51,204			—			23,661			—			74,865
	Equity in earnings			—			—			—			—			—			—
	Other operating activities - net			—			13,215			—			—			—			13,215
	Net cash provided by (required by) continuing operations			—			276,141			-1			30,810			—			306,950
	Net cash provided by discontinued operations			—			—			—			49,748			—			49,748
	Net cash provided by (required by) operating activities			—			276,141			-1			80,558			—			356,698
Investing Activities
Property additions			—			-163,303			—			-1,233			—			-164,536
Proceeds from sale of assets			—			6,113			—			—			—			6,113
Expenditures for major repairs			—			—			—			-726			—			-726
Other investing activities - net			—			52			—			—			—			52
Sales proceeds			—			—			—			173,118			—			173,118
Other			—			—			—			-1,129			—			-1,129
Net cash provided by (required by) investing activities			—			-157,138			—			170,030			—			12,892
Financing Activities
Purchase of treasury stock			—			—			—			—			—			—
Repayments of long-term debt			—			-80,000			—			-1,170			—			-81,170
Additions to long-term debt			—			641,250			—			—			—			641,250
Cash dividend to former parent			—			-650,000			—			—			—			-650,000
Debt issuance costs			—			-6,693			—			—			—			-6,693
Amounts related to share-based compensation			—			—			—			—			—			—
Net distributions to parent			—			213,808			1			-249,418			—			-35,609
Net cash provided by (required by) financing activities			—			118,365			1			-250,588			—			-132,222
Net increase in cash and cash equivalents			—			237,368			—			—			—			237,368
Cash and cash equivalents at January 1			—			57,373			—			—			—			57,373
Cash and cash equivalents at December 31		$	—		$	294,741		$	—		$	—		$	—		$	294,741


COMBINING STATEMENT OF CASH FLOW



(Thousands of dollars)		Year ended December 31, 2012
Operating Activities		Issuer				Guarantor Subsidiaries		Non-Guarantor Subsidiaries			Eliminations			Combined
Net income (loss)		$	138,417		$	-2		$	-54,847		$	—		$	83,568
Adjustments to reconcile net income to net cash provided by operating activities
(Income) loss from discontinued operations, net of tax			—			—			2,846			—			2,846
Depreciation and amortization			68,299			—			3,441			—			71,740
Amortization of deferred major repair costs			—			—			163			—			163
Deferred and noncurrent income tax charges (credits)			1,957			—			-18,420			—			-16,463
Impairment of properties			—			—			60,988			—			60,988
Accretion on discounted liabilities			980			—			—			—			980
Pretax (gains) losses from sale of assets			1,005			—			—			—			1,005
Net decrease (increase) in noncash operating working capital			62,493			—			-29,940			—			32,553
Equity in earnings			—			—			—			—			—
Other operating activities - net			-1,088			—			—			—			-1,088
Net cash provided by (required by) continuing operations			272,063			-2			-35,769			—			236,292
Net cash provided by discontinued operations			—			—			1,135			—			1,135
Net cash provided by (required by) operating activities			272,063			-2			-34,634			—			237,427
Investing Activities
Property additions			-103,152			—			-1,344			—			-104,496
Proceeds from sale of assets			364			—			—			—			364
Expenditures for major repairs			—			—			-250			—			-250
Other investing activities - net			—			—			—			—			—
Sales proceeds			—			—			—			—			—
Other			—			—			-7,706			—			-7,706
Net cash required by investing activities			-102,788			—			-9,300			—			-112,088
Financing Activities
Purchase of treasury stock			—			—			—			—			—
Repayments of long-term debt			—			—			-42			—			-42
Additions to long-term debt			—			—			—			—			—
Cash dividend to former parent			—			—			—			—			—
Debt issuance costs			—			—			—			—			—
Amounts related to share-based compensation			—			—			—			—			—
Net distributions to former parent			-148,789			2			43,976			—			-104,811
Net cash provided by (required by) financing activities			-148,789			2			43,934			—			-104,853
Net increase in cash and cash equivalents			20,486			—			—			—			20,486
Cash and cash equivalents at January 1			36,887			—			—			—			36,887
Cash and cash equivalents at December 31		$	57,373		$	—		$	—		$	—		$	57,373


Consolidating Statement Of Changes In Equity	CONSOLIDATING AND COMBINING STATEMENT OF CHANGES IN EQUITY



	(Thousands of dollars)		Year ended December 31, 2014
	Statement of Stockholders' Equity/Net Parent Investment		Parent Company			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Combined
	Common Stock
	Balance as of December 31, 2013		$	467		$	1		$	60		$	—		$	-61		$	467
	Issuance of common stock			1			—			—			—			—			1
	Balance as of December 31, 2014		$	468		$	1		$	60		$	—		$	-61		$	468
	Treasury Stock
	Balance as of December 31, 2013			—			—			—			—			—			—
	Issuance of common stock			275			—			—			—			—			275
	Repurchase of common stock			-51,348			—			—			—			—			-51,348
	Balance as of December 31, 2014		$	-51,073		$	—		$	—		$	—		$	—		$	-51,073
	APIC
	Balance as of December 31, 2013		$	1,228,370		$	548,758		$	52,004		$	35,677		$	-1,316,516		$	548,293
	Issuance of common stock			-275			—			—			—			—			-275
	Shares withheld to satisfy tax withholdings			—			-582			—			—			—			-582
	Reclassification of net parent investment to APIC			—			—			—			—			—			—
	Share-based compensation expense			—			10,435			—			—			—			10,435
	Balance as of December 31, 2014		$	1,228,095		$	558,611		$	52,004		$	35,677		$	-1,316,516		$	557,871
	Net Parent Investment
	Balance as of December 31, 2013		$	—		$	—		$	—		$	—		$	—		$	—
	Net income			—			—			—			—			—			—
	Dividend paid to former parent			—			—			—			—			—			—
	Net transfers to/between former parent			—			—			—			—			—			—
	Reclassification of net parent investment to APIC			—			—			—			—			—			—
	Balance as of December 31, 2014		$	—		$	—		$	—		$	—		$	—		$	—
	Retained Earnings
	Balance as of December 31, 2013		$	—		$	38,954		$	—		$	68,622		$	—		$	107,576
	Net income			351,439			312,485			-1			20,903			-440,963			243,863
	Balance as of December 31, 2014		$	351,439		$	351,439		$	-1		$	89,525		$	-440,963		$	351,439



	COMBINING STATEMENTS OF CHANGES IN EQUITY



	(Thousands of dollars)		Year ended December 31, 2013
	Statement of Stockholders' Equity/Net Parent Investment		Parent Company			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Combined
	Common Stock
	Balance as of December 31, 2012		$	—		$	—		$	—		$	—		$	—		$	—
	Issuance of stock at the separation and distribution			467			1			60			—			-61			467
	Balance as of December 31, 2013		$	467		$	1		$	60		$	—		$	-61		$	467
	Treasury Stock
	Balance as of December 31, 2012			—			—			—			—			—			—
	Issuance of common stock			—			—			—			—			—			—
	Repurchase of common stock			—			—			—			—			—			—
	Balance as of December 31, 2013		$	—		$	—		$	—		$	—		$	—		$	—
	APIC
	Balance as of December 31, 2012		$	—		$	—		$	—		$	—		$	—		$	—
	Issuance of stock at the separation and distribution						-467			—			—			—			-467
	Shares withheld to satisfy tax withholdings			—			—			—			—			—			—
	Reclassification of net parent investment to APIC			1,228,370			546,311			52,004			35,677			-1,316,516			545,846
	Share-based compensation expense			—			2,914			—			—			—			2,914
	Balance as of December 31, 2013		$	1,228,370		$	548,758		$	52,004		$	35,677		$	-1,316,516		$	548,293
	Net Parent Investment
	Balance as of December 31, 2012		$	—		$	1,123,467		$	53,895		$	117,550		$	-190,461		$	1,104,451
	Net income			—			114,668			—			12,789			—			127,457
	Dividend paid to former parent			—			-650,000			—			—			—			-650,000
	Net transfers to/between former parent			—			-36,062			—			—			—			-36,062
	Reclassification of net parent investment to APIC			—			-552,073			-53,895			-130,339			190,461			-545,846
Balance as of December 31, 2013		$	—		$	—		$	—		$	—		$	—		$	—
Retained Earnings
Balance as of December 31, 2012		$	—		$	—		$	—		$	—		$	—		$	—
Net income			—			38,954			—			68,622			—			107,576
Balance as of December 31, 2013		$	—		$	38,954		$	—		$	68,622		$	—		$	107,576


COMBINING STATEMENTS OF CHANGES IN EQUITY










(Thousands of dollars)		Year ended December 31, 2012
Statement of Stockholders' Equity/Net Parent Investment		Parent Company			Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Combined
Common Stock
Balance as of December 31, 2011		$	—		$	—		$	—		$	—		$	—		$	—
Issuance of stock at the separation and distribution			—			—			—			—			—			—
Balance as of December 31, 2012		$	—		$	—		$	—		$	—		$	—		$	—
Treasury Stock
Balance as of December 31, 2011			—			—			—			—			—			—
Issuance of common stock			—			—			—			—			—			—
Repurchase of common stock			—			—			—			—			—			—
Balance as of December 31, 2012		$	—		$	—		$	—		$	—		$	—		$	—
APIC
Balance as of December 31, 2011		$	—		$	—		$	—		$	—		$	—		$	—
Issuance of stock at the separation and distribution			—			—			—			—			—			—
Shares withheld to satisfy tax withholdings			—			—			—			—			—			—
Reclassification of net parent investment to APIC			—			—			—			—			—			—
Share-based compensation expense			—			—			—			—			—			—
Balance as of December 31, 2012		$	—		$	—		$	—		$	—		$	—		$	—
Net Parent Investment
Balance as of December 31, 2011		$	—		$	1,043,914		$	2,166		$	263,328		$	-190,461		$	1,118,947
Net income			—			138,416			—			-54,848			—			83,568
Dividend paid to former parent			—			—			—			—			—			—
Net transfers to/between former parent			—			-58,863			51,729			-90,930			—			-98,064
Reclassification of net parent investment to APIC			—			—			—			—			—			—
Balance as of December 31, 2012		$	—		$	1,123,467		$	53,895		$	117,550		$	-190,461		$	1,104,451
Retained Earnings
Balance as of December 31, 2011		$	—		$	—		$	—		$	—		$	—		$	—
Net income			—			—			—			—			—			—
Balance as of December 31, 2012		$	—		$	—		$	—		$	—		$	—		$	—

Supplemental_Quarterly_Informa1

Supplemental Quarterly Information (Tables)	12 Months Ended
Supplemental Quarterly Information (Tables)	Dec. 31, 2014
Supplemental Quarterly Information [Abstract]
Schedule Of Quarterly Financial Information
		First		Second		Third		Fourth
	(Millions of dollars except per share amounts)	Quarter		Quarter		Quarter		Quarter		Year
	Year Ended December 31, 2014
	Sales and other operating revenues	$	4,164.3	$	4,757.9	$	4,678.8	$	3,608.9	$	17,209.9
	Income from continuing operations before income taxes	$	14.5	$	107.6	$	100.3	$	147.0	$	369.4
	Income from continuing operations	$	8.9	$	73.2	$	62.7	$	98.3	$	243.1
	Net income	$	9.6	$	73.2	$	62.7	$	98.3	$	243.8
	Income from continuing operations (per Common share)
	Basic	$	0.19	$	1.58	$	1.35	$	2.15	$	5.27
	Diluted	$	0.19	$	1.57	$	1.35	$	2.13	$	5.24
	Net income (per Common share)
	Basic	$	0.21	$	1.58	$	1.35	$	2.15	$	5.29
	Diluted	$	0.21	$	1.57	$	1.35	$	2.13	$	5.26
	Market price of Common stock 1
	High	$	43.25	$	52.34	$	55.64	$	69.37	$	69.37
	Low	$	37.55	$	39.96	$	47.26	$	49.63	$	37.55


	Year Ended December 31, 2013
	Sales and other operating revenues	$	4,358.0	$	4,843.4	$	4,686.9	$	4,195.0	$	18,083.3
	Income (loss) from continuing operations before income taxes	$	34.5	$	114.9	$	59.3	$	49.0	$	257.7
	Income (loss) from continuing operations	$	20.3	$	70.2	$	36.3	$	29.5	$	156.3
	Net income (loss)	$	22.1	$	77.6	$	41.7	$	93.6	$	235.0
	Income (Loss) from continuing operations (per Common share)
	Basic	$	0.43	$	1.50	$	0.78	$	0.63	$	3.34
	Diluted	$	0.43	$	1.50	$	0.78	$	0.63	$	3.34
	Net income (per Common share)
	Basic	$	0.47	$	1.66	$	0.89	$	2.00	$	5.03
	Diluted	$	0.47	$	1.66	$	0.89	$	2.00	$	5.02
	Market price of Common stock 1
	High	$	—	$	—	$	41.58	$	46.91	$	46.91
	Low	$	—	$	—	$	36.12	$	39.27	$	36.12

	1 Prices as quoted on the New York Stock Exchange. Stock first traded September 3, 2013.

Description_Of_Business_And_Ba1

Description Of Business And Basis Of Presentation (Details) (USD $)	0 Months Ended		1 Months Ended	12 Months Ended	1 Months Ended	12 Months Ended
	Aug. 31, 2013	Aug. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Oct. 31, 2009	Dec. 31, 2014	Dec. 31, 2013
Description Of Business And Basis Of Presentation [Line Items]
Percentage of shares of stock distributed		100.00%
Ownership interest before transaction				100.00%
Ownership interest after transaction	0.00%
Stock conversion ratio		0.25
Number of states in which entity operates						23
Number of stations						1,263
Common stock shares issued			100
Common stock par value			$0.01			0.01	$0.01
Proceeds from issuance of common stock			$1
North Dakota [Member]
Description Of Business And Basis Of Presentation [Line Items]
Per annum production capacity of facility					110,000,000	135,000,000
Texas [Member]
Description Of Business And Basis Of Presentation [Line Items]
Per annum production capacity of facility						105,000,000

Significant_Accounting_Policie2

Significant Accounting Policies (Details) (USD $)	12 Months Ended
Significant Accounting Policies (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Significant Accounting Policies [Line Items]
Excise taxes	$1,930,608,000	$1,884,035,000	$1,962,660,000
Restricted Stock And Restricted Stock Units [Member]
Significant Accounting Policies [Line Items]
Award vesting period	3 years
Minimum [Member]
Significant Accounting Policies [Line Items]
Award vesting period	2 years
Minimum [Member] \| Marketing Facilities [Member]
Significant Accounting Policies [Line Items]
Depreciable life	16 years
Minimum [Member] \| Ethanol Plants, Gas Stations And Other Assets [Member]
Significant Accounting Policies [Line Items]
Depreciable life	3 years
Maximum [Member]
Significant Accounting Policies [Line Items]
Award vesting period	3 years
Maximum [Member] \| Marketing Facilities [Member]
Significant Accounting Policies [Line Items]
Depreciable life	25 years
Maximum [Member] \| Ethanol Plants, Gas Stations And Other Assets [Member]
Significant Accounting Policies [Line Items]
Depreciable life	50 years

RelatedParty_Transactions_Deta

Related-Party Transactions (Details) (USD $)	12 Months Ended
Related-Party Transactions (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Related-Party Transactions [Abstract]
Insurance, benefits and incentive plan expenses, related party	$0	$53,161,000	$70,056,000
Interest income, related party	0	1,080,000	156,000
Transition services agreement period	18 months
Transition services agreement extension period	6 months
Due from related party	1,737,000
Due to related party	$56,000

Discontinued_Operations_Narrat

Discontinued Operations (Narrative) (Details) (USD $)	12 Months Ended		1 Months Ended
Discontinued Operations (Narrative) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Jan. 31, 2014	Dec. 31, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales proceeds	$1,097,000	$173,118,000
Hankinson Renewable Energy, LLC [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales proceeds				170,000,000
Working capital adjustments			1,100,000	3,118,000
After-tax gain (loss) from disposal of refineries	$781,000			$52,542,000

Discontinued_Operations_Summar

Discontinued Operations (Summary Of Results Of Operations Of Discontinued Operations) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (loss) from discontinued operations	$781	$78,707	($2,846)
Hankinson Renewable Energy, LLC [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues		366,707	354,128
Income (loss) from operations before income taxes		40,130	-4,377
Gain on sale before income taxes	1,202	80,834
Total income (loss) from discontinued operations before taxes	1,202	120,964	-4,377
Provision for income taxes	421	42,257	-1,531
Income (loss) from discontinued operations	$781	$78,707	($2,846)

Inventories_Narrative_Details

Inventories (Narrative) (Details) (USD $)	12 Months Ended
Inventories (Narrative) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Inventories [Abstract]
Excess of LIFO replacement cost over carrying value	$144,283,000	$307,706,000
Benefit related to LIFO decrement	$19,512,000	($13,472,000)	$2,526,000

Inventories_Summary_Of_Invento

Inventories (Summary Of Inventory) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Inventories [Abstract]
Finished products - FIFO basis	$205,213	$372,531
Less LIFO reserve - finished products	-144,283	-307,706
Finished products - LIFO basis	60,930	64,825
Store merchandise for resale	98,712	97,058
Corn based products	17,873	12,447
Materials and supplies	5,399	4,725
Total inventory	$182,914	$179,055

Property_Plant_And_Equipment_D

Property, Plant And Equipment (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Cost		$1,983,326	$1,846,083
Net		1,253,124	1,190,723
Impairment of properties	60,988
Land [Member]
Property, Plant and Equipment [Line Items]
Cost		527,642	520,026
Net		527,642	520,026
Ethanol Facilities [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life		20 years
Cost		70,802	67,284
Net		4,481	1,082
Pipeline And Terminal Facilities [Member]
Property, Plant and Equipment [Line Items]
Cost		88,447	85,907
Net		36,384	36,114
Retail Gasoline Stations [Member]
Property, Plant and Equipment [Line Items]
Cost		1,229,582	1,110,340
Net		662,954	611,132
Buildings [Member]
Property, Plant and Equipment [Line Items]
Cost		18,160	17,829
Net		8,328	8,608
Other [Member]
Property, Plant and Equipment [Line Items]
Cost		48,693	44,697
Net		$13,335	$13,761
Minimum [Member] \| Pipeline And Terminal Facilities [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life		16 years
Minimum [Member] \| Retail Gasoline Stations [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life		3 years
Minimum [Member] \| Buildings [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life		20 years
Minimum [Member] \| Other [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life		3 years
Maximum [Member] \| Pipeline And Terminal Facilities [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life		25 years
Maximum [Member] \| Retail Gasoline Stations [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life		50 years
Maximum [Member] \| Buildings [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life		45 years
Maximum [Member] \| Other [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life		20 years

Accounts_Payable_And_Accrued_L1

Accounts Payable And Accrued Liabilities (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Accounts Payable And Accrued Liabilities [Abstract]
Trade accounts payable	$230,919	$311,397
Excise taxes/withholdings payable	71,273	55,882
Accrued insurance obligations	19,621	17,247
Other	65,186	48,702
Accounts payable and accrued liabilities	$386,999	$433,228

LongTerm_Debt_Narrative_Detail

Long-Term Debt (Narrative) (Details) (USD $)	12 Months Ended			0 Months Ended
Long-Term Debt (Narrative) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Aug. 30, 2013	Aug. 14, 2013
Debt Instrument [Line Items]
Senior notes	$492,443,000	$491,578,000			$500,000,000
Cash dividend to former parent		650,000,000
Repayments of long-term debt	70,000,000	81,170,000	42,000
Fixed charge coverage ratio	130.00%
Fixed charge coverage ratio threshold, percentage of aggregate facility commitments and borrowing base	17.50%
Fixed charge coverage ratio threshold, amount of aggregate facility commitments and borrowing base	70,000,000
Secured debt to EBITDA ratio	450.00%
Net income and retained earnings free of restrictions	107,500,000
Dividend restrictions	After giving effect to the applicable restrictions on certain payments, which could include dividends under the credit agreement (which restrictions are only applicable when availability under the credit agreement does not exceed the greater of 25% of the lesser of the revolving commitments and the borrowing base and $100 million (and if availability under the credit agreement does not exceed the greater of 40% of the lesser of the revolving commitments and the borrowing base and $150 million, then our fixed charge coverage ratio must be at least 1.0 to 1.0)) and the indenture, and subject to compliance with applicable law. As of December 31, 2014, the Company had approximately $107.5 million of its net income and retained earnings free of such restrictions.
Asset-Based Loan Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	450,000,000
Term Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	150,000,000
Proceeds borrowed from credit facility				150,000,000
Quarterly principal payment		10.00%
Incremental Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	200,000,000
Swing Line [Member]
Debt Instrument [Line Items]
Line of credit facility, sublimit	75,000,000
Letter Of Credit [Member]
Debt Instrument [Line Items]
Line of credit facility, sublimit	200,000,000
Cash [Member]
Debt Instrument [Line Items]
Percentage of asset available to borrow against	100.00%
Credit Card Receivables [Member]
Debt Instrument [Line Items]
Percentage of asset available to borrow against	90.00%
Investment Grade Accounts [Member]
Debt Instrument [Line Items]
Percentage of asset available to borrow against	90.00%
Other Accounts [Member]
Debt Instrument [Line Items]
Percentage of asset available to borrow against	85.00%
Midstream Refined Products Inventory [Member]
Debt Instrument [Line Items]
Percentage of asset available to borrow against	80.00%
Refined Retail Products Inventory [Member]
Debt Instrument [Line Items]
Percentage of asset available to borrow against	75.00%
Retail Merchandise Inventory [Member]
Debt Instrument [Line Items]
Percentage of asset available to borrow against	70.00%
Percentage of net orderly liquidation value available to borrow against	85.00%
Federal Funds Rate [Member]
Debt Instrument [Line Items]
Spread over variable rate	0.50%
LIBO Rate [Member]
Debt Instrument [Line Items]
Spread over variable rate	1.00%
Minimum [Member]
Debt Instrument [Line Items]
Fixed charge coverage ratio	100.00%
Period for fixed charge coverage ratio threshold	3 days
Dividend restriction threshold as a percentage of revolving commitments and borrowing base	25.00%
Dividend restriction threshold as amount of availability	100,000,000
Minimum [Member] \| LIBO Rate [Member] \| Asset-Based Loan Facility [Member]
Debt Instrument [Line Items]
Spread over variable rate	1.50%
Minimum [Member] \| LIBO Rate [Member] \| Term Facility [Member]
Debt Instrument [Line Items]
Spread over variable rate	2.75%
Minimum [Member] \| Alternative Base Rate [Member] \| Asset-Based Loan Facility [Member]
Debt Instrument [Line Items]
Spread over variable rate	0.50%
Minimum [Member] \| Alternative Base Rate [Member] \| Term Facility [Member]
Debt Instrument [Line Items]
Spread over variable rate	1.75%
Maximum [Member]
Debt Instrument [Line Items]
Dividend restriction threshold as a percentage of revolving commitments and borrowing base with consideration of fixed charge coverage ratio	40.00%
Dividend restriction threshold as amount of availability with consideration of fixed charge coverage ratio	$150,000,000
Maximum [Member] \| LIBO Rate [Member] \| Asset-Based Loan Facility [Member]
Debt Instrument [Line Items]
Spread over variable rate	2.00%
Maximum [Member] \| LIBO Rate [Member] \| Term Facility [Member]
Debt Instrument [Line Items]
Spread over variable rate	3.00%
Maximum [Member] \| Alternative Base Rate [Member] \| Asset-Based Loan Facility [Member]
Debt Instrument [Line Items]
Spread over variable rate	1.00%
Maximum [Member] \| Alternative Base Rate [Member] \| Term Facility [Member]
Debt Instrument [Line Items]
Spread over variable rate	2.00%
Term 1 [Member] \| LIBO Rate [Member]
Debt Instrument [Line Items]
Interest period	1 month
Term 2 [Member] \| LIBO Rate [Member]
Debt Instrument [Line Items]
Interest period	2 months
Term 3 [Member] \| LIBO Rate [Member]
Debt Instrument [Line Items]
Interest period	3 months
Term 4 [Member] \| LIBO Rate [Member]
Debt Instrument [Line Items]
Interest period	6 months

LongTerm_Debt_Summary_Of_LongT

Long-Term Debt (Summary Of Long-Term Debt) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Aug. 14, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Aug. 14, 2013
Debt Instrument [Line Items]
6% senior notes due 2023 (net of unamortized discount)	$492,443	$491,578	$500,000
Term loan due 2016 (effective rate of 3.71% at December 31, 2013)		70,000
Less current maturities		-14,000
Total long-term debt	492,443	547,578
Unamortized discount	$7,557	$8,422
Effective rate		3.71%
6% Senior Notes Due 2023 [Member]
Debt Instrument [Line Items]
Interest rate	6.00%		6.00%

Asset_Retirement_Obligations_A1

Asset Retirement Obligations (ARO) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Asset Retirement Obligations (ARO) [Abstract]
Balance at beginning of period	$17,130	$15,401
Accretion expense	1,200	1,096	980
Liabilities incurred	3,915	633
Balance at end of period	$22,245	$17,130	$15,401

Income_Taxes_Narrative_Details

Income Taxes (Narrative) (Details) (USD $)	12 Months Ended
Income Taxes (Narrative) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income tax expense, net benefits for interest and penalties	$1,143,000	$0	$0
Federal [Member]
Earliest year remaining open for audit and/or settlement in major taxing jurisdictions	2010
State [Member] \| Minimum [Member]
Earliest year remaining open for audit and/or settlement in major taxing jurisdictions	2008
State [Member] \| Maximum [Member]
Earliest year remaining open for audit and/or settlement in major taxing jurisdictions	2011

Income_Taxes_Schedule_Of_Compo

Income Taxes (Schedule Of Components Of Income From Continuing Operations Before Income Taxes And Income Tax Expense (Benefit)) (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Taxes [Abstract]
Income (loss) from continuing operations before income taxes	$147,000	$100,300	$107,600	$14,500	$49,000	$59,300	$114,900	$34,500	$369,423	$257,677	$150,119
Federal - Current									125,742	89,700	64,059
Federal - Deferred									2,989	-4,761	-17,098
State - Current and deferred									-2,390	16,412	16,744
Total									$126,341	$101,351	$63,705

Income_Taxes_Schedule_Of_Recon

Income Taxes (Schedule Of Reconciliation Of Income Taxes To Statutory Rate) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Taxes [Abstract]
Income tax expense based on the U.S. statutory tax rate	$129,298	$90,187	$52,542
State income taxes, net of federal benefit	-1,554	10,668	10,884
Other, net	-1,403	496	279
Total	$126,341	$101,351	$63,705

Income_Taxes_Summary_Of_Deferr

Income Taxes (Summary Of Deferred Tax Assets And Deferred Tax Liabilities) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Income Taxes [Abstract]
Property costs	$1,692	$6,456
Asset retirement obligations	465	5,844
Employee benefits	9,712	3,090
Other deferred tax assets	8,995	6,389
Total gross deferred tax assets	20,864	21,779
Net deferred tax assets	20,864	21,779
Accumulated depreciation and amortization	-114,262	-115,737
State deferred taxes	-16,855	-16,423
Other deferred tax liabilities	-8,837	-11,694
Total gross deferred tax liabilities	-139,954	-143,854
Net deferred tax liabilities	($119,090)	($122,075)

Income_Taxes_Reconciliation_of

Income Taxes (Reconciliation of Beginning and Ending Liability For Uncertain Tax Positions) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014
Income Taxes [Abstract]
Additions for tax positions related to prior year	$10,086
Additions for tax positions related to current year	77
Settlements with taxing authorities	-1,563
Expiration of statutes of limitation	-2,499
Unrecognized Tax Benefits, Ending Balance	$6,101

Incentive_Plans_Narrative_Deta

Incentive Plans (Narrative) (Details) (USD $)	12 Months Ended			16 Months Ended	0 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2014	Feb. 11, 2014	Feb. 12, 2014	Aug. 30, 2013
	item	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2014	Feb. 11, 2014	Feb. 12, 2014	Aug. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of share based compensation plans	2			2
Shares granted	127,400	625,101
Cash received from options exercised	$581,000	$0	$0
Total income tax benefits realized from tax deductions related to stock option exercises under share-based payment arrangements	470,000
Related income tax benefit recognized in income	3,652,000	3,287,000	2,946,000
Unrecognized compensation cost related to stock option awards	13,471,000			13,471,000
Unrecognized compensation cost related to stock option awards, weighted average period for recognition	2 years 8 months 12 days
Stock options vested		0	0
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	2 years
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
2013 Long-Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of shares authorized for incentive plan						5,500,000	10,000,000
Maximum number of shares per employee	1,000,000
Maximum amount payable	5,000,000
Shares granted				1,276,548
Shares available for grant	4,280,895			4,280,895
2013 Stock Plan For Non-Employee Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of shares authorized for incentive plan	500,000			500,000
Restricted stock units issued	50,850
Award vesting period	3 years
Shares available for grant	449,150			449,150
2013 Stock Plan For Non-Employee Directors [Member] \| Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units issued	22,437	28,413
MUSA 2013 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option term	P7Y
Restricted stock units issued	93,025	352,522
MUSA 2013 Plan [Member] \| Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
MUSA 2013 Plan [Member] \| Performance Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units issued	78,500
MUSA 2013 Plan [Member] \| Return On Average Capital Employed Performance Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units issued, weighted average grant date fair value					$39.46
Award vesting period	3 years
MUSA 2013 Plan [Member] \| Total Shareholder Return Performance Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units issued, weighted average grant date fair value					$43.41
Award vesting period	3 years
Number of companies in total shareholder return peer comparison group	17			17
Murphy Oil [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	2 years
Minimum grant date fair value of options replaced		$32.53
Maximum grant date fair value of options replaced		$40.25
Related income tax benefit recognized in income	$0	$625,000	$1,851,000

Incentive_Plans_Schedule_Of_Sh

Incentive Plans (Schedule Of Share-Based Plan Amounts Recognized) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Incentive Plans [Abstract]
Compensation charged against income before income tax benefit	$10,435	$9,391	$8,416
Related income tax benefit recognized in income	$3,652	$3,287	$2,946

Incentive_Plans_Summary_Of_Val

Incentive Plans (Summary Of Valuation Assumptions) (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2014
Murphy Oil Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility, minimum	37.00%	37.00%
Expected volatility, maximum	39.62%	39.62%
Risk-free interest rate, minimum	0.55%	0.55%
Risk-free interest rate, maximum	2.10%	2.10%
MUSA 2013 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value per option grant			$11.44
Expected volatility			31.70%
Risk-free interest rate			1.37%
Expected life			4 years 7 months 6 days
Minimum [Member] \| Murphy Oil Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value per option grant	12.37	12.37
Dividend yield	1.80%	1.80%
Expected life	4 years	4 years
Maximum [Member] \| Murphy Oil Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value per option grant	20.34	20.34
Dividend yield	2.27%	2.27%
Expected life	5 years 2 months 12 days	5 years 2 months 12 days

Incentive_Plans_Summary_Of_Cha

Incentive Plans (Summary Of Changes In Stock Options Outstanding) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Incentive Plans [Abstract]
Number of Shares, Outstanding, Beginning Balance	621,149
Number of Shares, Granted at FMV	127,400	625,101
Number of Shares, Exercised	-74,766
Number of Shares, Forfeited	-13,148	-3,952
Number of Shares, Outstanding, Ending Balance	660,635	621,149
Number of Shares, Exercisable	88,445
Average Exercise Price, Outstanding, Beginning Balance	$35.13
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price	$39.46	$35.12
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price	$34.21
Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price	$38.36	$33.92
Average Exercise Price, Outstanding, Ending Balance	$36	$35.13
Average Exercise Price, Exercisable	$34.54

Incentive_Plans_Summary_Of_Add

Incentive Plans (Summary Of Additional Stock Option Information) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding, No. of Options,	660,635
Options Outstanding, Avg. Life Remaining in Years	5 years
Options Outstanding, Aggregate Intrinsic Value	$21,705,226
Options Exercisable, No. of Options	88,445
Options Exercisable, Avg. Remaining Life in Years	3 years 7 months 6 days
Options Exercisable, Aggregate Intrinsic Value	3,035,013
$32.53 to $37.06 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding, No. of Options,	386,119
Options Outstanding, Avg. Life Remaining in Years	4 years 8 months 12 days
Options Outstanding, Aggregate Intrinsic Value	13,634,984
Options Exercisable, No. of Options	49,228
Options Exercisable, Avg. Remaining Life in Years	4 years 1 month 6 days
Options Exercisable, Aggregate Intrinsic Value	1,788,414
Range of Exercise Price per Option, Lower Range Limit	$32.53
Range of Exercise Price per Option, Upper Range Limit	$37.06
$37.07 to $39.45 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding, No. of Options,	39,217
Options Outstanding, Avg. Life Remaining in Years	3 years 1 month 6 days
Options Outstanding, Aggregate Intrinsic Value	1,246,599
Options Exercisable, No. of Options	39,217
Options Exercisable, Avg. Remaining Life in Years	3 years 1 month 6 days
Options Exercisable, Aggregate Intrinsic Value	1,246,599
Range of Exercise Price per Option, Lower Range Limit	$37.07
Range of Exercise Price per Option, Upper Range Limit	$39.45
$39.46 to $40.25 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding, No. of Options,	235,299
Options Outstanding, Avg. Life Remaining in Years	5 years 8 months 12 days
Options Outstanding, Aggregate Intrinsic Value	$6,823,643
Options Exercisable, Avg. Remaining Life in Years	0 years
Range of Exercise Price per Option, Lower Range Limit	$39.46
Range of Exercise Price per Option, Upper Range Limit	$40.25

Incentive_Plans_Summary_Of_Res

Incentive Plans (Summary Of Restricted Stock Unit Activity) (Details)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
MUSA 2013 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock Uits, Outstanding, Beginning Balance	347,098
Restricted Stock Units, Granted	93,025	352,522
Restricted Stock Units, Vested and Issued	-20,680	-509
Restricted Stock Units, Forfeited	-22,428	-4,915
Restricted Stock Units, Outstanding, Ending Balance	397,015	347,098
MUSA 2013 Plan [Member] \| Performance Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock Units, Granted	78,500
Restricted Stock Units, Forfeited	-6,500
Restricted Stock Units, Outstanding, Ending Balance	72,000
2013 Stock Plan For Non-Employee Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock Units, Granted	50,850
2013 Stock Plan For Non-Employee Directors [Member] \| Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock Uits, Outstanding, Beginning Balance	28,413
Restricted Stock Units, Granted	22,437	28,413
Restricted Stock Units, Outstanding, Ending Balance	50,850	28,413

Employee_And_Retiree_Benefit_P2

Employee And Retiree Benefit Plans (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Thrift Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Company matching contribution	100.00%
Employee's maximum contribution matched by Company	6.00%
Profit sharing percentage 1	5.00%
Profit sharing percentage 2	7.00%
Profit sharing percentage 3	9.00%
Profit sharing contributions	$9,089,000	$4,678,000	$2,460,000
Profit Sharing Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Profit sharing contributions	$1,848,000	$1,861,000	$1,627,000

Employee_And_Retiree_Benefit_P3

Employee And Retiree Benefit Plans (Summary Of Components Of Net Periodic Benefit Expense) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$3,401	$4,227
Interest cost	2,717	4,252
Expected return on plan assets	-2,794	-3,860
Amortization of prior service cost (benefits)	53	90
Recognized actuarial loss	2,108	2,986
Net periodic benefit expense	5,485	7,695
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	1,447	1,770
Interest cost	983	1,454
Amortization of prior service cost (benefits)	-7	-10
Recognized actuarial loss	363	369
Net periodic benefit expense	$2,786	$3,583

Employee_And_Retiree_Benefit_P4

Employee And Retiree Benefit Plans (Summary Of Weighted-Average Assumptions Used In The Measurement Of Net Periodic Benefit Expense) (Details)	12 Months Ended
	Dec. 31, 2012
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.87%
Expencted return on plan assets	6.50%
Rate of compensation increase	4.20%
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.87%
Expencted return on plan assets	0.00%
Rate of compensation increase	0.00%

Financial_Instruments_And_Risk2

Financial Instruments And Risk Management (Narrative) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
	bu	bu	Dec. 31, 2012
Derivative [Line Items]
Purchase commitment contracts of bushels of corn	13,400,000	3,100,000
Sale commitment contracts of bushels of wet and dried grain with solubles	500,000	500,000
Increase (decrease) in income before taxes due to the impact of marking to market of derivative contracts	($2.10)	($0.10)	$2.90
Cash deposits related to commodity derivative contracts	$2.80	$2.90
Price Risk Derivative [Member] \| Short [Member]
Derivative [Line Items]
Outstanding derivative contracts to sell bushels of corn	1,500,000	500,000
Repurchase Agreement [Member] \| Short [Member]
Derivative [Line Items]
Outstanding derivative contracts to sell bushels of corn	3,200,000	2,000,000

Financial_Instruments_And_Risk3

Financial Instruments And Risk Management (Summary Of Fair Value And Recognized Gains And Losses Of Derivative Instruments Not Designated As Hedging Instruments) (Details) (Commodity Contract [Member], USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Derivative [Line Items]
Derivative contracts	$74	$224
Derivative contracts	2,204	291
Accounts Receivable [Member] \| Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative contracts	74	224
Accounts Payable [Member] \| Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative contracts	2,204	291
Fuel And Ethanol Costs Of Goods Sold [Member] \| Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Gain (Loss)	$921	$8,516

Financial_Instruments_And_Risk4

Financial Instruments And Risk Management (Summary Of Offsetting Assets) (Details) (Commodity Contract [Member], USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Commodity Contract [Member]
Offsetting Assets [Line Items]
Gross Amounts of Recognized Assets	$93	$233
Gross Amounts Offset in the Consolidated Balance Sheet	-19	-9
Net Amount of Assets Presented in the Consolidated Balance Sheet	$74	$224

Financial_Instruments_And_Risk5

Financial Instruments And Risk Management (Summary Of Offsetting Liabilities) (Details) (Commodity Contract [Member], USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Commodity Contract [Member]
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities	$2,223	$300
Gross Amounts Offset in the Consolidated Balance Sheet	-19	-9
Net Amounts of Liabilities Presented in the Consolidated Balance Sheet	$2,204	$291

Earnings_Per_Share_Narrative_D

Earnings Per Share (Narrative) (Details) (USD $)	0 Months Ended
In Millions, except Share data, unless otherwise specified	27-May-14	Aug. 30, 2013	Dec. 31, 2014	27-May-14	7-May-14
Earnings Per Share [Abstract]
Issuance of stock at the separation and distribution, shares		46,743,316
Stock repurchase program, approved amount					$50
Stock repurchase program, shares acquired			1,056,689	1,040,636
Stock repurchase program, average price per share	$48.07

Earnings_Per_Share_Reconciliat

Earnings Per Share (Reconciliation of Basic And Diluted Earnings Per Share Computations) (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Earnings Per Share [Abstract]
Net income attributable to common stockholders	$98,300	$62,700	$73,200	$9,600	$93,600	$41,700	$77,600	$22,100	$243,863	$235,033	$83,568
Weighted average common shares outstanding (in thousands)									46,104	46,743	46,743
Total earnings per share	$2.15	$1.35	$1.58	$0.21	$2	$0.89	$1.66	$0.47	$5.29	$5.03	$1.79
Common share equivalents: Dilutive options									313	115
Weighted average common shares outstanding - assuming dilution (in thousands)									46,417	46,858	46,743
Earnings per share - assuming dilution	$2.13	$1.35	$1.57	$0.21	$2	$0.89	$1.66	$0.47	$5.26	$5.02	$1.79

Other_Financial_Information_Na

Other Financial Information (Narrative) (Details) (USD $)	12 Months Ended
Other Financial Information (Narrative) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Other Financial Information [Abstract]
Income taxes paid, net of refunds	$158,063,000	$47,757,000	$13,036,000
Interest paid	34,019,000	1,647,000	479,000
Noncash reductions to net parent investment related to settlement of income taxes		453,000
Non cash additions to net parent invstment related to settlement of income taxes			$6,747,000

Other_Financial_Information_Sc

Other Financial Information (Schedule Of Ethanol Sales And Other Revenue) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Other Financial Information [Abstract]
Sales of ethanol and related plant products	$223,831	$269,254	$290,158
Renewable Identification Numbers (RINs) sales	92,916	91,391	8,830
Other	3,267	2,907	2,988
Total ethanol sales and other revenue	$320,014	$363,552	$301,976

Other_Financial_Information_Su

Other Financial Information (Summary Of Changes In Operating Working Capital) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Other Financial Information [Abstract]
Accounts receivable	$59,171	$331,679	($171,115)
Inventories	-3,858	20,532	-29,784
Prepaid expenses	637	-6,623	-3,187
Accounts payable and accrued liabilities	-50,972	-272,371	230,704
Income taxes payable	-30,782	7,276	4,396
Current deferred income tax liabilities	-6,662	-5,628	1,539
Net decrease in noncash operating working capital	($32,466)	$74,865	$32,553

Assets_And_Liabilities_Measure2

Assets And Liabilities Measured At Fair Value (Schedule Of Fair Value Of Assets And Liabilities) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	$74	$224
Liabilities	-2,204	-291
Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	74	224
Liabilities	($2,204)	($291)

Assets_And_Liabilities_Measure3

Assets And Liabilities Measured At Fair Value (Schedule Of Carrying Amounts And Estimated Fair Value Of Financial Instruments) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Assets And Liabilities Measured At Fair Value [Abstract]
Current and long-term debt, Carrying Amount	($492,443)	($561,578)
Current and long-term debt. Fair Value	($510,344)	($559,411)

Commitments_Details

Commitments (Details) (USD $)	12 Months Ended
Commitments (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Commitments And Contingencies [Line Items]
Expected future rental payments under operating leases in 2015	$22,884,000
Expected future rental payments under operating leases in 2016	22,059,000
Expected future rental payments under operating leases in 2017	10,262,000
Expected future rental payments under operating leases in 2018	9,311,000
Expected future rental payments under operating leases in 2019	9,031,000
Rental expense for noncancelable operating leases	11,433,000	9,691,000	6,093,000
Operating lease expense related to discontinued operations	0	7,089,000	3,380,000
Commitments for capital expenditures	169,797,000
Construction In Process [Member]
Commitments And Contingencies [Line Items]
Commitments for capital expenditures	159,778,000
Building Improvements [Member]
Commitments And Contingencies [Line Items]
Commitments for capital expenditures	$4,138,000

Contingencies_Details

Contingencies (Details) (USD $)	12 Months Ended
	Dec. 31, 2014
	site
Contingencies [Abstract]
Number of Superfund sites for which company may be liable	1
Name of plaintiff	Freeny
Parties jointly and severally liable in litigation	Murphy Oil Corporation and Murphy Oil USA, Inc.
Allegations	the plaintiffs allege that the Company has infringed on their electronic pricing system patent.
Expected trial commencement	2015-06
Workers' compensation deductible (per occurrence)	$500,000
Workers' compensation accrued liability	5,000,000
Outstanding letters of credit	16,200,000
Liability accrued	$0

Business_Segments_Summary_Of_I

Business Segments (Summary Of Information By Business Segment) (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Segment income (loss)	$98,300	$62,700	$73,200	$9,600	$93,600	$41,700	$77,600	$22,100	$243,863	$235,033	$83,568
Revenues from external customers	3,608,900	4,678,800	4,757,900	4,164,300	4,195,000	4,686,900	4,843,400	4,358,000	17,209,919	18,083,335	19,301,308
Interest income									244	1,099	172
Interest expense									-36,646	-14,509	-384
Income tax expense (benefit)									126,341	101,351	63,705
Depreciation and amortization									79,234	74,130	71,740
Accretion of asset retirement obligations									1,200	1,096	980
Impairment of properties											60,988
Deferred and noncurrent income taxes (benefits)									-1,032	-7,262	-16,463
Additions to property, plant and equipment									138,888	171,972	111,593
Total assets at year-end	1,934,257				1,881,242				1,934,257	1,881,242	1,992,465
Segment Discontinued Operations [Member]
Segment Reporting Information [Line Items]
Segment income (loss)									781	78,707	-2,846
Additions to property, plant and equipment										519	7,097
Total assets at year-end											116,420
Marketing [Member]
Segment Reporting Information [Line Items]
Segment income (loss)									242,434	164,013	139,583
Revenues from external customers									16,985,903	17,814,081	19,011,040
Income tax expense (benefit)									127,657	106,223	92,059
Depreciation and amortization									74,906	71,253	66,913
Accretion of asset retirement obligations									1,200	1,096	980
Deferred and noncurrent income taxes (benefits)									368	-9,796	3,393
Additions to property, plant and equipment									131,139	162,051	103,096
Total assets at year-end	1,544,018				1,527,125				1,544,018	1,527,125	1,765,020
Corporate and Other Assets [Member]
Segment Reporting Information [Line Items]
Segment income (loss)									648	-7,687	-53,169
Revenues from external customers									224,016	269,254	290,268
Interest income									244	1,099	172
Interest expense									-36,646	-14,509	-384
Income tax expense (benefit)									-1,316	-4,872	-28,354
Depreciation and amortization									4,328	2,877	4,827
Impairment of properties											60,988
Deferred and noncurrent income taxes (benefits)									-1,400	2,534	-19,856
Additions to property, plant and equipment									7,749	9,402	1,400
Total assets at year-end	$390,239				$354,117				$390,239	$354,117	$111,025

Guarantor_Subsidiaries_Consoli

Guarantor Subsidiaries (Consolidating Balance Sheet) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current assets
Cash and cash equivalents	$328,105	$294,741	$57,373	$36,887
Accounts receivable-trade, less allowance for doubtful accounts of $4,456 in 2014 and $4,456 in 2013	140,091	193,181
Inventories, at lower of cost or market	182,914	179,055
Prepaid expenses and other current assets	14,772	15,439
Total current assets	665,882	682,416
Property, plant and equipment, at cost less accumulated depreciation and amortization of $730,202 in 2014 and $655,360 in 2013	1,253,124	1,190,723
Other assets	15,251	8,103
Total assets	1,934,257	1,881,242	1,992,465
Current liabilities
Current maturities of long-term debt		14,000
Trade accounts payable and accrued liabilities	386,999	433,228
Income taxes payable	25,600	72,146
Deferred income taxes	481	7,143
Total current liabilities	413,080	526,517
Long-term debt	492,443	547,578
Deferred income taxes	118,609	114,932
Asset retirement obligations	22,245	17,130
Deferred credits and other liabilities	29,175	18,749
Total liabilities	1,075,552	1,224,906
Stockholders' Equity/Net Investment
Preferred Stock, par $0.01, (authorized 20,000,000 shares, none outstanding)
Common Stock, par $0.01, (authorized 200,000,000 shares, 46,767,164 issued and 46,743,633 shares issued and outstanding at 2014 and 2013, respectively)	468	467
Treasury stock (1,056,689 shares held at December 31, 2014)	-51,073
Additional paid in capital (APIC)	557,871	548,293
Retained earnings	351,439	107,576
Total stockholders' equity	858,705	656,336	1,104,451	1,118,947
Total liabilities and stockholders' equity/net investment	1,934,257	1,881,242
Eliminations [Member]
Current assets
Investments in subsidiaries	-1,757,540	-1,228,837
Other assets		-87,740
Deferred tax assets	-19,273
Total assets	-1,776,813	-1,316,577
Current liabilities
Deferred income taxes	-19,273
Total liabilities	-19,273
Stockholders' Equity/Net Investment
Preferred Stock, par $0.01, (authorized 20,000,000 shares, none outstanding)
Common Stock, par $0.01, (authorized 200,000,000 shares, 46,767,164 issued and 46,743,633 shares issued and outstanding at 2014 and 2013, respectively)	-61	-61
Additional paid in capital (APIC)	-1,316,516	-1,316,516
Retained earnings	-440,963
Total stockholders' equity	-1,757,540	-1,316,577
Total liabilities and stockholders' equity/net investment	-1,776,813	-1,316,577
Parent Company [Member]
Current assets
Investments in subsidiaries	1,580,277	1,228,837
Total assets	1,580,277	1,228,837
Current liabilities
Inter-company accounts payable	51,348
Total current liabilities	51,348
Total liabilities	51,348
Stockholders' Equity/Net Investment
Preferred Stock, par $0.01, (authorized 20,000,000 shares, none outstanding)
Common Stock, par $0.01, (authorized 200,000,000 shares, 46,767,164 issued and 46,743,633 shares issued and outstanding at 2014 and 2013, respectively)	468	467
Treasury stock (1,056,689 shares held at December 31, 2014)	-51,073
Additional paid in capital (APIC)	1,228,095	1,228,370
Retained earnings	351,439
Total stockholders' equity	1,528,929	1,228,837
Total liabilities and stockholders' equity/net investment	1,580,277	1,228,837
Issuer [Member]
Current assets
Cash and cash equivalents	327,163	294,741	57,373	36,887
Accounts receivable-trade, less allowance for doubtful accounts of $4,456 in 2014 and $4,456 in 2013	138,466	191,904
Inventories, at lower of cost or market	157,046	157,795
Prepaid expenses and other current assets	11,710	12,217
Total current assets	634,385	656,657
Property, plant and equipment, at cost less accumulated depreciation and amortization of $730,202 in 2014 and $655,360 in 2013	1,248,081	1,189,082
Investments in subsidiaries	177,263
Other assets	14,736	95,604
Total assets	2,074,465	1,941,343
Current liabilities
Current maturities of long-term debt		14,000
Inter-company accounts payable	82,528	119,366
Trade accounts payable and accrued liabilities	381,271	429,763
Income taxes payable	18,348	71,450
Deferred income taxes	522	7,143
Total current liabilities	482,669	641,722
Long-term debt	492,443	547,578
Deferred income taxes	137,882	128,451
Asset retirement obligations	22,245	17,130
Deferred credits and other liabilities	29,175	18,749
Total liabilities	1,164,414	1,353,630
Stockholders' Equity/Net Investment
Preferred Stock, par $0.01, (authorized 20,000,000 shares, none outstanding)
Common Stock, par $0.01, (authorized 200,000,000 shares, 46,767,164 issued and 46,743,633 shares issued and outstanding at 2014 and 2013, respectively)	1	1
Additional paid in capital (APIC)	558,611	548,758
Retained earnings	351,439	38,954
Total stockholders' equity	910,051	587,713
Total liabilities and stockholders' equity/net investment	2,074,465	1,941,343
Guarantor Subsidiaries [Member]
Current liabilities
Inter-company accounts payable	-52,077	-52,107
Income taxes payable	14	43
Total current liabilities	-52,063	-52,064
Total liabilities	-52,063	-52,064
Stockholders' Equity/Net Investment
Preferred Stock, par $0.01, (authorized 20,000,000 shares, none outstanding)
Common Stock, par $0.01, (authorized 200,000,000 shares, 46,767,164 issued and 46,743,633 shares issued and outstanding at 2014 and 2013, respectively)	60	60
Additional paid in capital (APIC)	52,004	52,004
Retained earnings	-1
Total stockholders' equity	52,063	52,064
Non-Guarantor Subsidiaries [Member]
Current assets
Cash and cash equivalents	942
Accounts receivable-trade, less allowance for doubtful accounts of $4,456 in 2014 and $4,456 in 2013	1,625	1,277
Inventories, at lower of cost or market	25,868	21,260
Prepaid expenses and other current assets	3,062	3,222
Total current assets	31,497	25,759
Property, plant and equipment, at cost less accumulated depreciation and amortization of $730,202 in 2014 and $655,360 in 2013	5,043	1,641
Other assets	515	239
Deferred tax assets	19,273
Total assets	56,328	27,639
Current liabilities
Inter-company accounts payable	-81,799	-67,259
Trade accounts payable and accrued liabilities	5,728	3,465
Income taxes payable	7,238	653
Deferred income taxes	-41
Total current liabilities	-68,874	-63,141
Deferred income taxes		-13,519
Total liabilities	-68,874	-76,660
Stockholders' Equity/Net Investment
Preferred Stock, par $0.01, (authorized 20,000,000 shares, none outstanding)
Additional paid in capital (APIC)	35,677	35,677
Retained earnings	89,525	68,622
Total stockholders' equity	125,202	104,299
Total liabilities and stockholders' equity/net investment	$56,328	$27,639

Guarantor_Subsidiaries_Consoli1

Guarantor Subsidiaries (Consolidating Income Statement) (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Revenues
Petroleum product sales									$14,728,527	[1]	$15,560,317	[1]	$16,854,985	[1]
Merchandise sales									2,161,378		2,159,466		2,144,347
Ethanol sales and other									320,014		363,552		301,976
Total revenues	3,608,900	4,678,800	4,757,900	4,164,300	4,195,000	4,686,900	4,843,400	4,358,000	17,209,919		18,083,335		19,301,308
Costs and operating expenses
Petroleum product cost of goods sold									14,074,579	[1]	15,009,955	[1]	16,298,316	[1]
Merchandise cost of goods sold									1,859,732		1,877,630		1,855,641
Ethanol cost of goods sold									158,276		228,899		269,168
Station and other operating expenses									521,526		493,703		480,109
Depreciation and amortization									79,234		74,130		71,740
Impairment of properties													60,988
Selling, general and administrative									120,901		132,999		113,122
Accretion of asset retirement obligations									1,200		1,096		980
Total costs and operating expenses									16,815,448		17,818,412		19,150,064
Income from operations									394,471		264,923		151,244
Other income (expense)
Interest income									244		1,099		172
Interest expense									-36,646		-14,509		-384
Gain (loss) on sale of assets									194		5,995		-1,005
Other nonoperating income									11,160		169		92
Total other income (expense)									-25,048		-7,246		-1,125
Income from continuing operations before income taxes	147,000	100,300	107,600	14,500	49,000	59,300	114,900	34,500	369,423		257,677		150,119
Income tax expense									126,341		101,351		63,705
Income from continuing operations	98,300	62,700	73,200	8,900	29,500	36,300	70,200	20,300	243,082		156,326		86,414
Income (loss) from discontinued operations, net of income taxes									781		78,707		-2,846
Net Income	98,300	62,700	73,200	9,600	93,600	41,700	77,600	22,100	243,863		235,033		83,568
Parent Company [Member]
Other income (expense)
Equity earnings in affiliates, net of tax									351,439
Net Income									351,439
Issuer [Member]
Revenues
Petroleum product sales									14,911,658		15,766,752		17,071,126
Merchandise sales									2,161,378		2,159,466		2,144,347
Ethanol sales and other									96,109		94,298		11,708
Total revenues									17,169,145		18,020,516		19,227,181
Costs and operating expenses
Petroleum product cost of goods sold									14,257,710		15,216,390		16,514,457
Merchandise cost of goods sold									1,859,732		1,877,630		1,855,641
Station and other operating expenses									486,762		460,476		447,103
Depreciation and amortization									79,087		74,053		68,299
Selling, general and administrative									119,265		129,430		109,634
Accretion of asset retirement obligations									1,200		1,096		980
Total costs and operating expenses									16,803,756		17,759,075		18,996,114
Income from operations									365,389		261,441		231,067
Other income (expense)
Interest income									244		1,099		172
Interest expense									-36,646		-14,509		-384
Gain (loss) on sale of assets									194		5,995		-1,005
Other nonoperating income									10,166		169		92
Total other income (expense)									-26,042		-7,246		-1,125
Income from continuing operations before income taxes									339,347		254,195		229,942
Income tax expense									116,386		100,059		91,525
Income from continuing operations									222,961		154,136		138,417
Equity earnings in affiliates, net of tax									89,524
Net Income									312,485		154,136		138,417
Guarantor Subsidiaries [Member]
Costs and operating expenses
Selling, general and administrative									1		1		2
Total costs and operating expenses									1		1		2
Income from operations									-1		-1		-2
Other income (expense)
Income from continuing operations before income taxes									-1		-1		-2
Income from continuing operations									-1		-1		-2
Net Income									-1		-1		-2
Non-Guarantor Subsidiaries [Member]
Revenues
Ethanol sales and other									223,905		269,254		290,268
Total revenues									223,905		269,254		290,268
Costs and operating expenses
Ethanol cost of goods sold									158,276		228,899		269,168
Station and other operating expenses									34,764		33,227		33,006
Depreciation and amortization									147		77		3,441
Impairment of properties													60,988
Selling, general and administrative									1,635		3,568		3,486
Total costs and operating expenses									194,822		265,771		370,089
Income from operations									29,083		3,483		-79,821
Other income (expense)
Other nonoperating income									994
Total other income (expense)									994
Income from continuing operations before income taxes									30,077		3,483		-79,821
Income tax expense									9,955		1,292		-27,820
Income from continuing operations									20,122		2,191		-52,001
Income (loss) from discontinued operations, net of income taxes									781		78,707		-2,846
Net Income									20,903		80,898		-54,847
Eliminations [Member]
Revenues
Petroleum product sales									-183,131		-206,435		-216,141
Total revenues									-183,131		-206,435		-216,141
Costs and operating expenses
Petroleum product cost of goods sold									-183,131		-206,435		-216,141
Total costs and operating expenses									-183,131		-206,435		-216,141
Other income (expense)
Equity earnings in affiliates, net of tax									-440,963
Net Income									($440,963)

[1]	Includes excise taxes of: $1,930,608 $1,884,035 $1,962,660

Guarantor_Subsidiaries_Consoli2

Guarantor Subsidiaries (Consolidating Statement Of Cash Flow) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating Activities
Net income	$243,863,000	$235,033,000	$83,568,000
Adjustments to reconcile net income to net cash provided by operating activities
(Income) loss from discontinued operations, net of taxes	-781,000	-78,707,000	2,846,000
Depreciation and amortization	79,234,000	74,130,000	71,740,000
Amortization of deferred major repair costs	1,093,000	575,000	163,000
Deferred and noncurrent income tax charges (credits)	-1,032,000	-7,262,000	-16,463,000
Impairment of properties			60,988,000
Accretion on discounted liabilities	1,200,000	1,096,000	980,000
Pretax (gains) losses from sale of assets	-194,000	-5,995,000	1,005,000
Net decrease (increase) in noncash operating working capital	-32,466,000	74,865,000	32,553,000
Other operating activities - net	14,531,000	13,215,000	-1,088,000
Net cash provided by (required by) continuing operations	305,448,000	306,950,000	236,292,000
Net cash provided by discontinued operations	134,000	49,748,000	1,135,000
Net cash provided by (required by) operating activities	305,582,000	356,698,000	237,427,000
Investing Activities
Property additions	-138,888,000	-164,536,000	-104,496,000
Proceeds from sale of assets	376,000	6,113,000	364,000
Expenditures for major repairs	-1,369,000	-726,000	-250,000
Other investing activities - net	-10,631,000	52,000
Investing activities of discontinued operations
Sales proceeds	1,097,000	173,118,000
Other		-1,129,000	-7,706,000
Net cash provided by (required by) investing activities	-149,415,000	12,892,000	-112,088,000
Financing Activities
Purchase of treasury stock	-51,348,000
Repayments of long-term debt	-70,000,000	-81,170,000	-42,000
Additions to long-term debt		641,250,000
Cash dividend to former parent		-650,000,000
Debt issuance costs	-875,000	-6,693,000
Amounts related to share-based compensation	-580,000
Net distributions to parent		-35,609,000	-104,811,000
Net cash provided by (required by) financing activities	-122,803,000	-132,222,000	-104,853,000
Net increase in cash and cash equivalents	33,364,000	237,368,000	20,486,000
Cash and cash equivalents at January 1	294,741,000	57,373,000	36,887,000
Cash and cash equivalents at December 31	328,105,000	294,741,000	57,373,000
Eliminations [Member]
Operating Activities
Net income	-440,963,000
Adjustments to reconcile net income to net cash provided by operating activities
Equity in earnings	440,963,000
Parent Company [Member]
Operating Activities
Net income	351,439,000
Adjustments to reconcile net income to net cash provided by operating activities
Equity in earnings	-351,439,000
Financing Activities
Purchase of treasury stock	-51,348,000
Net distributions to parent	51,348,000
Issuer [Member]
Operating Activities
Net income	312,485,000	154,136,000	138,417,000
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	79,087,000	74,053,000	68,299,000
Deferred and noncurrent income tax charges (credits)	-4,403,000	-11,568,000	1,957,000
Accretion on discounted liabilities	1,200,000	1,096,000	980,000
Pretax (gains) losses from sale of assets	-194,000	-5,995,000	1,005,000
Net decrease (increase) in noncash operating working capital	-36,475,000	51,204,000	62,493,000
Equity in earnings	-89,524,000
Other operating activities - net	14,531,000	13,215,000	-1,088,000
Net cash provided by (required by) continuing operations	276,707,000	276,141,000	272,063,000
Net cash provided by (required by) operating activities	276,707,000	276,141,000	272,063,000
Investing Activities
Property additions	-135,339,000	-163,303,000	-103,152,000
Proceeds from sale of assets	376,000	6,113,000	364,000
Other investing activities - net	-10,631,000	52,000
Investing activities of discontinued operations
Net cash provided by (required by) investing activities	-145,594,000	-157,138,000	-102,788,000
Financing Activities
Repayments of long-term debt	-70,000,000	-80,000,000
Additions to long-term debt		641,250,000
Cash dividend to former parent		-650,000,000
Debt issuance costs	-875,000	-6,693,000
Amounts related to share-based compensation	-580,000
Net distributions to parent	-27,236,000	213,808,000	-148,789,000
Net cash provided by (required by) financing activities	-98,691,000	118,365,000	-148,789,000
Net increase in cash and cash equivalents	32,422,000	237,368,000	20,486,000
Cash and cash equivalents at January 1	294,741,000	57,373,000	36,887,000
Cash and cash equivalents at December 31	327,163,000	294,741,000	57,373,000
Guarantor Subsidiaries [Member]
Operating Activities
Net income	-1,000	-1,000	-2,000
Adjustments to reconcile net income to net cash provided by operating activities
Net cash provided by (required by) continuing operations	-1,000	-1,000	-2,000
Net cash provided by (required by) operating activities	-1,000	-1,000	-2,000
Financing Activities
Net distributions to parent	1,000	1,000	2,000
Net cash provided by (required by) financing activities	1,000	1,000	2,000
Non-Guarantor Subsidiaries [Member]
Operating Activities
Net income	20,903,000	80,898,000	-54,847,000
Adjustments to reconcile net income to net cash provided by operating activities
(Income) loss from discontinued operations, net of taxes	-781,000	-78,707,000	2,846,000
Depreciation and amortization	147,000	77,000	3,441,000
Amortization of deferred major repair costs	1,093,000	575,000	163,000
Deferred and noncurrent income tax charges (credits)	3,371,000	4,306,000	-18,420,000
Impairment of properties			60,988,000
Net decrease (increase) in noncash operating working capital	4,009,000	23,661,000	-29,940,000
Net cash provided by (required by) continuing operations	28,742,000	30,810,000	-35,769,000
Net cash provided by discontinued operations	134,000	49,748,000	1,135,000
Net cash provided by (required by) operating activities	28,876,000	80,558,000	-34,634,000
Investing Activities
Property additions	-3,549,000	-1,233,000	-1,344,000
Expenditures for major repairs	-1,369,000	-726,000	-250,000
Investing activities of discontinued operations
Sales proceeds	1,097,000	173,118,000
Other		-1,129,000	-7,706,000
Net cash provided by (required by) investing activities	-3,821,000	170,030,000	-9,300,000
Financing Activities
Repayments of long-term debt		-1,170,000	-42,000
Net distributions to parent	-24,113,000	-249,418,000	43,976,000
Net cash provided by (required by) financing activities	-24,113,000	-250,588,000	43,934,000
Net increase in cash and cash equivalents	942,000
Cash and cash equivalents at December 31	$942,000

Guarantor_Subsidiaries_Consoli3

Guarantor Subsidiaries (Consolidating Statement Of Changes In Equity) (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Condensed Financial Statements, Captions [Line Items]
Balance				$656,336				$1,104,451	$656,336	$1,104,451	$1,118,947
Net income	98,300	62,700	73,200	9,600	93,600	41,700	77,600	22,100	243,863	235,033	83,568
Repurchase of common stock									-51,348
Dividend paid to former parent										-650,000
Net transfers to/between former parent										-36,062	-98,064
Issuance of common stock									1
Shares withheld to satisfy tax withholdings									-582
Share-based compensation expense									10,435	2,914
Balance	858,705				656,336				858,705	656,336	1,104,451
Common Stock [Member]
Condensed Financial Statements, Captions [Line Items]
Balance				467					467
Issuance of common stock									1
Issuance of stock at the separation and distribution										467
Balance	468				467				468	467
Treasury Stock [Member]
Condensed Financial Statements, Captions [Line Items]
Repurchase of common stock									-51,348
Issuance of common stock									275
Balance	-51,073								-51,073
APIC [Member]
Condensed Financial Statements, Captions [Line Items]
Balance				548,293					548,293
Issuance of common stock									-275
Issuance of stock at the separation and distribution										-467
Shares withheld to satisfy tax withholdings									-582
Reclassification of net parent investment to APIC										545,846
Share-based compensation expense									10,435	2,914
Balance	557,871				548,293				557,871	548,293
Net Parent Investment [Member]
Condensed Financial Statements, Captions [Line Items]
Balance								1,104,451		1,104,451	1,118,947
Net income										127,457	83,568
Dividend paid to former parent										-650,000
Net transfers to/between former parent										-36,062	-98,064
Reclassification of net parent investment to APIC										-545,846
Balance											1,104,451
Retained Earnings [Member]
Condensed Financial Statements, Captions [Line Items]
Balance				107,576					107,576
Net income									243,863	107,576
Balance	351,439				107,576				351,439	107,576
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Balance				-1,316,577					-1,316,577
Net income									-440,963
Balance	-1,757,540								-1,757,540
Eliminations [Member] \| Common Stock [Member]
Condensed Financial Statements, Captions [Line Items]
Issuance of stock at the separation and distribution										-61
Balance	-61				-61				-61	-61
Eliminations [Member] \| APIC [Member]
Condensed Financial Statements, Captions [Line Items]
Reclassification of net parent investment to APIC										-1,316,516
Balance	-1,316,516				-1,316,516				-1,316,516	-1,316,516
Eliminations [Member] \| Net Parent Investment [Member]
Condensed Financial Statements, Captions [Line Items]
Balance								-190,461		-190,461		-190,461
Reclassification of net parent investment to APIC										190,461
Balance												-190,461
Eliminations [Member] \| Retained Earnings [Member]
Condensed Financial Statements, Captions [Line Items]
Net income									-440,963
Balance	-440,963								-440,963
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Balance				1,228,837					1,228,837
Net income									351,439
Balance	1,528,929								1,528,929
Parent Company [Member] \| Common Stock [Member]
Condensed Financial Statements, Captions [Line Items]
Balance				467					467
Issuance of common stock									1
Issuance of stock at the separation and distribution										467
Balance	468				467				468	467
Parent Company [Member] \| Treasury Stock [Member]
Condensed Financial Statements, Captions [Line Items]
Repurchase of common stock									-51,348
Issuance of common stock									275
Balance	-51,073								-51,073
Parent Company [Member] \| APIC [Member]
Condensed Financial Statements, Captions [Line Items]
Balance				1,228,370					1,228,370
Issuance of common stock									-275
Reclassification of net parent investment to APIC										1,228,370
Balance	1,228,095				1,228,370				1,228,095	1,228,370
Parent Company [Member] \| Retained Earnings [Member]
Condensed Financial Statements, Captions [Line Items]
Net income									351,439
Balance	351,439								351,439
Issuer [Member]
Condensed Financial Statements, Captions [Line Items]
Balance				587,713					587,713
Net income									312,485	154,136	138,417
Balance	910,051				587,713				910,051	587,713
Issuer [Member] \| Common Stock [Member]
Condensed Financial Statements, Captions [Line Items]
Issuance of stock at the separation and distribution										1
Balance	1				1				1	1
Issuer [Member] \| APIC [Member]
Condensed Financial Statements, Captions [Line Items]
Balance				548,758					548,758
Issuance of stock at the separation and distribution										-467
Shares withheld to satisfy tax withholdings									-582
Reclassification of net parent investment to APIC										546,311
Share-based compensation expense									10,435	2,914
Balance	558,611				548,758				558,611	548,758
Issuer [Member] \| Net Parent Investment [Member]
Condensed Financial Statements, Captions [Line Items]
Balance								1,123,467		1,123,467	1,043,914
Net income										114,668	138,416
Dividend paid to former parent										-650,000
Net transfers to/between former parent										-36,062	-58,863
Reclassification of net parent investment to APIC										-552,073
Balance											1,123,467
Issuer [Member] \| Retained Earnings [Member]
Condensed Financial Statements, Captions [Line Items]
Balance				38,954					38,954
Net income									312,485	38,954
Balance	351,439				38,954				351,439	38,954
Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Balance				52,064					52,064
Net income									-1	-1	-2
Balance	52,063				52,064				52,063	52,064
Guarantor Subsidiaries [Member] \| Common Stock [Member]
Condensed Financial Statements, Captions [Line Items]
Issuance of stock at the separation and distribution										60
Balance	60				60				60	60
Guarantor Subsidiaries [Member] \| APIC [Member]
Condensed Financial Statements, Captions [Line Items]
Reclassification of net parent investment to APIC										52,004
Balance	52,004				52,004				52,004	52,004
Guarantor Subsidiaries [Member] \| Net Parent Investment [Member]
Condensed Financial Statements, Captions [Line Items]
Balance								53,895		53,895	2,166
Net transfers to/between former parent											51,729
Reclassification of net parent investment to APIC										-53,895
Balance											53,895
Guarantor Subsidiaries [Member] \| Retained Earnings [Member]
Condensed Financial Statements, Captions [Line Items]
Net income									-1
Balance	-1								-1
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Balance				104,299					104,299
Net income									20,903	80,898	-54,847
Balance	125,202				104,299				125,202	104,299
Non-Guarantor Subsidiaries [Member] \| APIC [Member]
Condensed Financial Statements, Captions [Line Items]
Reclassification of net parent investment to APIC										35,677
Balance	35,677				35,677				35,677	35,677
Non-Guarantor Subsidiaries [Member] \| Net Parent Investment [Member]
Condensed Financial Statements, Captions [Line Items]
Balance								117,550		117,550	263,328
Net income										12,789	-54,848
Net transfers to/between former parent											-90,930
Reclassification of net parent investment to APIC										-130,339
Balance											117,550
Non-Guarantor Subsidiaries [Member] \| Retained Earnings [Member]
Condensed Financial Statements, Captions [Line Items]
Balance				68,622					68,622
Net income									20,903	68,622
Balance	$89,525				$68,622				$89,525	$68,622

Supplemental_Quarterly_Informa2

Supplemental Quarterly Information (Details) (USD $)	3 Months Ended														12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014		Sep. 30, 2014		Jun. 30, 2014		Mar. 31, 2014		Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Supplemental Quarterly Information [Abstract]
Sales and other operating revenues	$3,608,900		$4,678,800		$4,757,900		$4,164,300		$4,195,000		$4,686,900		$4,843,400	$4,358,000	$17,209,919		$18,083,335		$19,301,308
Income (loss) from continuing operations before income taxes	147,000		100,300		107,600		14,500		49,000		59,300		114,900	34,500	369,423		257,677		150,119
Income (loss) from continuing operations	98,300		62,700		73,200		8,900		29,500		36,300		70,200	20,300	243,082		156,326		86,414
Net income	$98,300		$62,700		$73,200		$9,600		$93,600		$41,700		$77,600	$22,100	$243,863		$235,033		$83,568
Income (loss) from continuing operations (per Common share)
Basic	$2.15		$1.35		$1.58		$0.19		$0.63		$0.78		$1.50	$0.43	$5.27		$3.34		$1.85
Diluted	$2.13		$1.35		$1.57		$0.19		$0.63		$0.78		$1.50	$0.43	$5.24		$3.34		$1.85
Net income (per Common share)
Basic	$2.15		$1.35		$1.58		$0.21		$2		$0.89		$1.66	$0.47	$5.29		$5.03		$1.79
Diluted	$2.13		$1.35		$1.57		$0.21		$2		$0.89		$1.66	$0.47	$5.26		$5.02		$1.79
Market price of Common stock
High	$69.37	[1]	$55.64	[1]	$52.34	[1]	$43.25	[1]	$46.91	[1]	$41.58	[1]			$69.37	[1]	$46.91	[1]
Low	$49.63	[1]	$47.26	[1]	$39.96	[1]	$37.55	[1]	$39.27	[1]	$36.12	[1]			$37.55	[1]	$36.12	[1]

[1]	Prices as quoted on the New York Stock Exchange. Stock first traded September 3, 2013

Schedule_II_Valuation_And_Qual1

Schedule II - Valuation And Qualifying Accounts (Details) (Allowance for Doubtful Accounts [Member], USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2014
Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Beginning balance	$4,576	$5,835	$4,456
Deductions	-120	-1,259
Ending balance	$4,456	$4,576	$4,456