Murphy USA (MUSA) 10-K 22 Feb 17 2016 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2016	Jan. 31, 2017	Jun. 30, 2016
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	Dec. 31, 2016
Entity Central Index Key	1,573,516
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Fiscal Year Focus	2,016
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		36,898,928
Entity Public Float			$ 2,904,362,000

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current assets
Cash and cash equivalents	$ 153,813	$ 102,335	$ 327,163
Accounts receivable—trade, less allowance for doubtful accounts of $1,891 in 2016 and $1,963 in 2015	183,519	136,253
Inventories, at lower of cost or market	153,351	155,906
Prepaid expenses and other current assets	24,871	41,173
Total current assets	515,554	435,667
Property, plant and equipment, at cost less accumulated depreciation and amortization of $780,426 in 2016 and $724,486 in 2015	1,532,655	1,369,318
Restricted cash	0	68,571
Other assets	40,531	12,685
Total assets	2,088,740	1,886,241	1,949,337
Current liabilities
Current maturities of long-term debt	40,596	222
Trade accounts payable and accrued liabilities	473,370	390,341
Income taxes payable	594	0
Deferred income taxes	0	1,729
Total current liabilities	514,560	392,292
Long-term debt, including capitalized lease obligations	629,622	490,160
Deferred income taxes	204,656	161,236
Asset retirement obligations	26,200	24,345
Deferred credits and other liabilities	16,626	25,918
Total liabilities	1,391,664	1,093,951
Stockholders' Equity
Preferred Stock, par $0.01 (authorized 20,000,000 shares, none outstanding)	0	0
Common Stock, par $0.01, (authorized 200,000,000 shares, 46,767,164 and 46,767,164 shares issued at 2016 and 2015, respectively)	468	468
Treasury stock (9,831,196 and 5,088,434 shares held at December 31, 2016 and December 31, 2015, respectively)	(608,001)	(294,139)
Additional paid in capital (APIC)	555,338	558,182
Retained earnings	749,271	527,779
Total stockholders' equity	697,076	792,290	$ 858,705	$ 656,336
Total liabilities and stockholders' equity	$ 2,088,740	$ 1,886,241

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Mar. 31, 2013
Statement of Financial Position [Abstract]
Accounts receivable - trade, allowance for doubtful accounts	$ 1,891	$ 1,963
Property, plant and equipment, accumulated depreciation and amortization	$ 780,426	$ 724,486
Preferred stock par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock shares authorized (in shares)	20,000,000	20,000,000
Preferred stock shares outstanding (in shares)	0	0
Common stock par value (in dollars per share)	$ 0.01	$ 0.01	$ 0.01
Common stock shares authorized (in shares)	200,000,000	200,000,000
Common stock shares issued (in shares)	46,767,164	46,767,164
Treasury stock (in shares)	9,831,196	5,088,434

Consolidated Income Statements

Consolidated Income Statements - USD ($) shares in Thousands, $ in Thousands		3 Months Ended								12 Months Ended
		Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenues
Petroleum product sales	[1]									$ 9,070,623	$ 10,304,689	$ 14,728,527
Merchandise sales										2,338,586	2,273,888	2,161,378
Other operating revenues										185,344	120,834	96,109
Total revenues		$ 3,055,800	$ 3,042,700	$ 3,005,800	$ 2,490,300	$ 2,928,200	$ 3,382,500	$ 3,468,000	$ 2,920,700	11,594,553	12,699,411	16,986,014
Costs and operating expenses
Petroleum product cost of goods sold	[1]									8,603,953	9,794,475	14,074,579
Merchandise cost of goods sold										1,974,486	1,946,423	1,859,732
Station and other operating expenses										493,320	486,383	486,762
Depreciation and amortization										98,610	86,568	79,087
Selling, general and administrative										122,669	129,277	119,266
Accretion of asset retirement obligations										1,650	1,521	1,200
Total costs and operating expenses										11,294,688	12,444,647	16,620,626
Income from operations										299,865	254,764	365,388
Other income (expense)
Interest income										578	2,177	244
Interest expense										(39,704)	(33,531)	(36,646)
Gain (loss) on sale of assets										88,212	(4,658)	194
Other nonoperating income (expense)										3,080	(463)	10,166
Total other income (expense)										52,166	(36,475)	(26,042)
Income from continuing operations before income taxes		66,800	71,800	74,100	139,300	44,500	94,100	38,800	40,900	352,031	218,289	339,346
Income tax expense										130,539	80,698	116,386
Income from continuing operations		43,800	45,500	46,300	85,900	29,200	60,000	24,800	23,600	221,492	137,591	222,960
Income from discontinued operations, net of income taxes										0	38,749	20,903
Net Income		$ 43,800	$ 45,500	$ 46,300	$ 85,900	$ 66,700	$ 60,500	$ 26,200	$ 22,900	$ 221,492	$ 176,340	$ 243,863
Earnings per share - basic:
Income from continuing operations (in dollars per share)		$ 1.16	$ 1.17	$ 1.18	$ 2.10	$ 0.70	$ 1.41	$ 0.56	$ 0.52	$ 5.64	$ 3.17	$ 4.84
Income from discontinued operations (in dollars per share)										0	0.89	0.45
Net income - basic (in dollars per share)		1.16	1.17	1.18	2.10	1.60	1.42	0.59	0.50	5.64	4.06	5.29
Earnings per share - diluted:
Income from continuing operations (in dollars per share)		1.14	1.16	1.17	2.08	0.69	1.40	0.56	0.51	5.59	3.14	4.81
Income from discontinued operations (in dollars per share)										0	0.88	0.45
Net income - diluted (in dollars per share)		$ 1.14	$ 1.16	$ 1.17	$ 2.08	$ 1.58	$ 1.41	$ 0.59	$ 0.50	$ 5.59	$ 4.02	$ 5.26
Weighted-average shares outstanding (in thousands):
Basic (in shares)										39,269	43,434	46,104
Diluted (in shares)										39,646	43,794	46,417
Excise taxes										$ 1,961,478	$ 1,968,629	$ 1,930,608
[1]	Includes excise taxes of: $1,961,478, $1,968,629, and $1,930,608.

Consolidated Statements of Cash

Consolidated Statements of Cash Flows $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)
Operating Activities
Net income	$ 221,492	$ 176,340	$ 243,863
Adjustments to reconcile net income to net cash provided by operating activities
(Income) loss from discontinued operations, net of taxes	0	(38,749)	(20,903)
Depreciation and amortization	98,610	86,568	79,087
Deferred and noncurrent income tax charges (credits)	40,407	40,556	(4,403)
Accretion of asset retirement obligations	1,650	1,521	1,200
Pretax (gains) losses from sale of assets	(88,212)	4,658	(194)
Net decrease (increase) in noncash operating working capital	53,726	(46,586)	(36,475)
Other operating activities - net	9,767	9,417	14,531
Net cash provided by (used in) continuing operations	337,440	233,725	276,706
Net cash provided by (used in) discontinued operations	0	(17,887)	28,876
Net cash provided by operating activities	337,440	215,838	305,582
Investing Activities
Property additions	(262,144)	(205,225)	(135,339)
Proceeds from sale of assets	85,327	729	376
Changes in restricted cash	68,571	(68,571)	0
Other investing activities - net	(28,963)	(2,889)	(10,631)
Investing activities of discontinued operations
Sales proceeds	0	93,765	1,097
Other	2,355	(7,443)	(4,918)
Net cash required by investing activities	(134,854)	(189,634)	(149,415)
Financing Activities
Purchase of treasury stock	(323,272)	(248,695)	(51,348)
Repayments of long-term debt	(20,438)	(146)	(70,000)
Additions to long-term debt	200,000	0	0
Debt issuance costs	(3,240)	(58)	(875)
Amounts related to share-based compensation	(4,158)	(3,075)	(580)
Net cash required by financing activities	(151,108)	(251,974)	(122,803)
Net change in cash and cash equivalents	51,478	(225,770)	33,364
Cash and cash equivalents at January 1	102,335	328,105	294,741
Cash and cash equivalents at December 31	153,813	102,335	328,105
Less: Cash and cash equivalents held for sale	0	0	942
Cash and cash equivalents of continuing operations at December 31	$ 153,813	$ 102,335	$ 327,163

Consolidated Statements of Chan

Consolidated Statements of Changes in Equity - USD ($) $ in Thousands	Total	Common Stock	Treasury Stock	APIC	Retained Earnings
Balance at Dec. 31, 2013	$ 656,336	$ 467	$ 0	$ 548,293	$ 107,576
Balance (in shares) at Dec. 31, 2013		46,743,633
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	243,863				243,863
Purchase of treasury stock	(51,348)		(51,348)
Issuance of common stock	1	$ 1
Issuance of common stock (in shares)		23,531
Issuance of treasury stock			275	(275)
Amounts related to share-based compensation	(582)			(582)
Share-based compensation expense	10,435			10,435
Balance at Dec. 31, 2014	858,705	$ 468	(51,073)	557,871	351,439
Balance (in shares) at Dec. 31, 2014		46,767,164
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	176,340				176,340
Purchase of treasury stock	(248,695)		(248,695)
Issuance of common stock	0	$ 0
Issuance of common stock (in shares)		0
Issuance of treasury stock			5,629	(5,629)
Amounts related to share-based compensation	(3,075)			(3,075)
Share-based compensation expense	9,015			9,015
Balance at Dec. 31, 2015	$ 792,290	$ 468	(294,139)	558,182	527,779
Balance (in shares) at Dec. 31, 2015	46,767,164	46,767,164
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 221,492				221,492
Purchase of treasury stock	(323,272)		(323,272)
Issuance of common stock	0	$ 0
Issuance of common stock (in shares)		0
Issuance of treasury stock			9,410	(9,410)
Amounts related to share-based compensation	(2,748)			(2,748)
Share-based compensation expense	9,314			9,314
Balance at Dec. 31, 2016	$ 697,076	$ 468	$ (608,001)	$ 555,338	$ 749,271
Balance (in shares) at Dec. 31, 2016	46,767,164	46,767,164

Description of Business and Bas

Description of Business and Basis of Presentation	12 Months Ended
	Dec. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business and Basis of Presentation	Description of Business and Basis of Presentation Description of business — The business of Murphy USA Inc. and its subsidiaries (“Murphy USA” or the “Company”) primarily consists of the U.S. retail marketing business that was separated from its former parent company, Murphy Oil Corporation (“Murphy Oil”), plus 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 stores and unbranded wholesale customers. Murphy USA’s owned retail stores are almost all located in close proximity to Walmart stores in 26 states and use the brand name Murphy USA®. Murphy USA also markets gasoline and other products at standalone stores under the Murphy Express brand. At December 31, 2016 , Murphy USA had a total of 1,401 Company stores. The Company also has certain product supply and wholesale assets, including product distribution terminals and pipeline positions. 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. All significant intercompany transactions and accounts within the consolidated financial statements have been eliminated.

Significant Accounting Policies

Significant Accounting Policies	12 Months Ended
	Dec. 31, 2016
Accounting Policies [Abstract]
Significant Accounting Policies	Significant Accounting Policies PRINCIPLES OF CONSOLIDATION – These consolidated financial statements were prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) and include the accounts of Murphy USA Inc. and it's subsidiaries for all periods presented. All significant intercompany accounts and transactions within the consolidated 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 stores 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 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 Consolidated Income Statements. Costs incurred for the shipping and handling of convenience store merchandise are included in Merchandise cost of goods sold in the Consolidated Income Statements. 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 Income Statements. Excise taxes on petroleum products collected and remitted were $1.96 billion in 2016 , $1.97 billion in 2015 , and $1.93 billion in 2014 . 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. 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. 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. Gasoline stations, improvements to 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 nonoperating income. The Company capitalizes interest costs as a component of construction in progress on individually significant projects based on the weighted average interest rates incurred on its long term borrowings. Total interest cost capitalized in 2016 was $0.3 million . The Company has undertaken like-kind exchange ("LKE") transactions under the Federal tax code in an effort to acquire and sell real and personal property in a tax efficient manner. The Company generally enters into forward transactions, in which property is sold and the proceeds are reinvested by acquiring similar property; and reverse transactions, in which property is acquired and similar property is subsequently sold. A qualified LKE intermediary is used to facilitate these LKE transactions. Proceeds from forward LKE transactions are held by the intermediary and are classified as restricted cash on the Company's balance sheet because the funds must be reinvested in similar properties. If the acquisition of suitable LKE properties is not completed within 180 days of the sale of the Company-owned property, the proceeds are distributed to the Company by the intermediary and are reclassified as available cash and applicable income taxes are determined. An exchange accommodation titleholder, a type of variable interest entity, is used to facilitate reverse like-kind exchanges. The acquired assets are held by the exchange accommodation titleholder until the exchange transactions are complete. If the Company determines that it is the primary beneficiary of the exchange accommodation titleholder, the replacements assets held by the exchange accommodation titleholder are consolidated and recorded in Property, Plant and Equipment on the Consolidated Balance Sheets. The unspent proceeds that are held in trust with the intermediary are recorded as noncurrent assets in the Consolidated Balance Sheet as the cash was restricted for the acquisition of property, plant and equipment. At December 31, 2016 , the Company had no open LKE transactions with an intermediary while at year end 2015 the Company had $68.6 million of proceeds with an intermediary. 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. 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 positive and negative 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 principles for income tax uncertainties permit recognition of income tax benefits only when they are more likely than not to be realized. 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. 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 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 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. 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, restricted stock units and performance stock units is determined based on a combination of management assumptions for awards issued. The Company uses 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 the Company’s common stock prices. The Company uses both historical data and current information to support its assumptions. Stock option expense is recognized on a straight-line basis over the requisite service period of three years. The Company uses a Monte Carlo valuation model to determine the fair value of performance-based stock units that are based on performance compared against a peer group and the related expense is recognized over the three -year requisite service period. Management estimates the number of all awards 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. 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

Discontinued Operations	12 Months Ended
	Dec. 31, 2016
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	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 million plus working capital adjustments of approximately $3.1 million . 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 $52.5 million in 2013 with an additional $0.8 million 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 Revenues $ — Income (loss) from operations before income taxes — Gain on sale before income taxes 1,202 Total income (loss) from discontinued operations before taxes 1,202 Provision for income taxes 421 Income (loss) from discontinued operations $ 781 In September 2015, the Company determined that it had met held for sale criteria for its Hereford, Texas ethanol production facility. On September 25, 2015, the Company signed a letter of intent to sell this subsidiary for a gain and the transaction closed on November 12, 2015. We have classified the results of the Hereford plant as discontinued operations in our Consolidated Income Statement for all periods presented. The financial results of our Hereford plant through December 31, 2015 are presented as income from discontinued operations, net of income taxes on our Consolidated Income Statement. The results of the Hereford ethanol plant have been included along with "Corporate" as a reconciling item within our segment footnote. The following table presents financial results of the Hereford business: Twelve months ended December 31, (Thousands of dollars) 2015 2014 Revenues Ethanol sales $ 154,502 $ 223,904 Total revenues 154,502 223,904 Costs and operating expenses Ethanol cost of goods sold 121,753 158,276 Station and other operating expenses 27,881 34,763 Depreciation and amortization 333 147 Selling, general and administrative expenses 1,382 1,635 Total costs and operating expenses 151,349 194,821 Income from operations 3,153 29,083 Other income (expense) Gain (loss) on sale of assets 60,782 — Other nonoperating income (expense) — 994 Total other income (expense) 60,782 994 Income before income taxes 63,935 30,077 Income taxes 25,186 9,955 Net income $ 38,749 $ 20,122 The following table presents cash flow of the Hereford ethanol plant: Twelve months ended December 31, (Thousands of dollars) 2015 2014 Net cash provided by (used in) discontinued operating activities $ (17,887 ) $ 28,741 Net cash provided by (used in) discontinued investing activities $ 86,322 $ (4,918 )

Change in Accounting Principle

Change in Accounting Principle	12 Months Ended
	Dec. 31, 2016
Accounting Changes and Error Corrections [Abstract]
Change in Accounting Principle	Change in Accounting Principle During the first quarter of 2015, the Company elected to early adopt the provisions of ASU 2015-03 “Simplifying the Presentation of Debt Issuance Costs”. In accordance with provisions of the FASB ASU topic on “Accounting Changes and Error Corrections” all prior periods presented have been retrospectively adjusted to apply the change in accounting principle. For a summary of the adjustments, see below: Previous Accounting Method Effect of Change In As Reported (thousands of dollars) December 31, 2015 Accounting Principle December 31, 2015 Other assets $ 16,211 $ (3,526 ) $ 12,685 Long-term debt $ 493,686 $ (3,526 ) $ 490,160

Inventories

Inventories	12 Months Ended
	Dec. 31, 2016
Inventory Disclosure [Abstract]
Inventories	Inventories Inventories consisted of the following: December 31, (Thousands of dollars) 2016 2015 Finished products - FIFO basis $ 207,903 $ 159,774 Less LIFO reserve - finished products (153,319 ) (102,849 ) Finished products - LIFO basis 54,584 56,925 Store merchandise for resale 95,649 94,925 Materials and supplies 3,118 4,056 Total inventories $ 153,351 $ 155,906 At December 31, 2016 and 2015 , the replacement cost (market value) of last-in, first-out (LIFO) inventories exceeded the LIFO carrying value by $153.3 million and $102.8 million , respectively. In 2014, inventories valued at LIFO incurred a decrement that resulted in a benefit of $19.5 million on income from continuing operations before income tax.

Property, Plant and Equipment

Property, Plant and Equipment	12 Months Ended
	Dec. 31, 2016
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	Property, Plant and Equipment December 31, 2016 December 31, 2015 (Thousands of dollars) Estimated Useful Life Cost Net Cost Net Land $ 577,743 $ 577,743 $ 555,198 $ 555,198 Pipeline and terminal facilities 16 to 25 years 67,946 41,218 95,244 40,846 Retail gasoline stations 3 to 50 years 1,565,275 867,165 1,367,176 746,747 Buildings 20 to 45 years 33,375 22,310 19,441 8,985 Other 3 to 20 years 68,742 24,219 56,745 17,542 $ 2,313,081 $ 1,532,655 $ 2,093,804 $ 1,369,318

Accounts Payable and Accrued Li

Accounts Payable and Accrued Liabilities	12 Months Ended
	Dec. 31, 2016
Payables and Accruals [Abstract]
Accounts Payable and Accrued Liabilities	Accounts Payable and Accrued Liabilities Trade accounts payable and accrued liabilities consisted of the following: December 31, (Thousands of dollars) 2016 2015 Trade accounts payable $ 309,988 $ 226,769 Excise taxes/withholdings payable 76,552 75,704 Accrued insurance obligations 21,631 23,347 Accrued taxes other than income 26,740 26,626 Other 38,459 37,895 Accounts payable and accrued liabilities $ 473,370 $ 390,341

Long-Term Debt

Long-Term Debt	12 Months Ended
	Dec. 31, 2016
Debt Disclosure [Abstract]
Long-Term Debt	Long-Term Debt Long-term debt consisted of the following: December 31, (Thousands of dollars) 2016 2015 6.00% senior notes due 2023 (net of unamortized discount of $5,826 at 2016 and $6,692 at 2015) $ 494,174 $ 493,308 Term loan due 2020 (effective rate of 3.77% at December 31, 2016) 180,000 — Capitalized lease obligations, vehicles, due through 2020 1,451 600 Unamortized debt issuance costs (5,407 ) (3,526 ) Total long-term debt 670,218 490,382 Less current maturities 40,596 222 Total long-term debt, net of current $ 629,622 $ 490,160 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 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 and Term Loan 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 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. On March 10, 2016, we amended the agreement to extend the effective date of the ABL to March 10, 2021 , added a $200 million term loan facility that was immediately drawn down and is due on March 10, 2020 and requires quarterly principal payments of $10 million that began July 1, 2016, and reduced the uncommitted incremental facility to $150 million . 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 $200 million sublimit for the issuance of letters of credit. 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 a total debt to EBITDA ratio under the ABL facility or (ii) with respect to the term facility, spreads ranging from 2.50% to 2.75% per annum depending on a total 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 a total debt to EBITDA ratio under the ABL facility or (ii) with respect to the term facility, spreads ranging from 1.50% to 1.75% per annum depending on a total 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 amortization payments on the outstanding principal amount of the term loan facility beginning on July 1, 2016 equal to 5% of the aggregate principal amount of term loans made on March 10, 2016, with the remaining balance payable on the scheduled maturity date of the term loan facility. Borrowings under the credit facilities are prepayable at our option without premium or penalty. We are also required to prepay the term loan 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 minimum 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 well as a maximum secured debt to EBITDA ratio of 4.5 to 1.0 at any time when term facility commitments or term loans thereunder are outstanding. As of December 31, 2016 , our fixed charge coverage ratio was 0.58 ; however, we had no debt outstanding under the facility at that date so the fixed charge coverage ratio currently has no impact on our operations or liquidity. Our secured debt to EBITDA ratio as of December 31, 2016 was 0.44 to 1.0. 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 $100 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, 2016 , the Company's ability to make restricted payments was not limited as our availability under the borrowing base was more than $100.0 million while our fixed charge coverage ratio was less than 1.0 to 1.0. At December 31, 2016 , the Company had a shortfall of approximately $304.1 million of its net income and retained earnings subject to such restrictions before the fixed charge coverage ratio would exceed 1.0 to 1.0. 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
	Dec. 31, 2016
Asset Retirement Obligation Disclosure [Abstract]
Asset Retirement Obligations (ARO)	Asset Retirement Obligations (ARO) The majority of the ARO recognized by the Company at December 31, 2016 and 2015 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) 2016 2015 Balance at beginning of period $ 24,345 $ 22,245 Accretion expense 1,650 1,521 Settlements of liabilities (174 ) — Liabilities incurred 379 579 Balance at end of period $ 26,200 $ 24,345 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
	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The components of income from continuing operations before income taxes for each of the three years ended December 31, 2016 and income tax expense (benefit) attributable thereto were as follows: Years Ended December 31, (Thousands of dollars) 2016 2015 2014 Income (loss) from continuing operations before income taxes $ 352,031 $ 218,289 $ 339,346 Income tax expense (benefit) Federal - Current $ 74,932 58,039 119,338 Federal - Deferred 38,807 15,853 (382 ) State - Current and deferred 16,800 6,806 (2,570 ) Total $ 130,539 $ 80,698 $ 116,386 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) 2016 2015 2014 Income tax expense based on the U.S. statutory tax rate $ 123,211 $ 76,401 $ 118,771 State income taxes, net of federal benefit 11,438 4,424 (1,671 ) Other, net (4,110 ) (127 ) (714 ) Total $ 130,539 $ 80,698 $ 116,386 An analysis of the Company’s deferred tax assets and deferred tax liabilities at December 31, 2016 and 2015 showing the tax effects of significant temporary differences is as follows: December 31, (Thousands of dollars) 2016 2015 Deferred tax assets Property costs and asset retirement obligations $ 4,059 $ 2,666 Employee benefits 10,742 9,647 Other deferred tax assets 7,623 7,297 Total gross deferred tax assets 22,424 19,610 Less valuation allowance — — Net deferred tax assets 22,424 19,610 Deferred tax liabilities Accumulated depreciation and amortization (197,727 ) (157,322 ) State deferred taxes (18,643 ) (17,042 ) Other deferred tax liabilities (10,710 ) (8,211 ) Total gross deferred tax liabilities (227,080 ) (182,575 ) Net deferred tax liabilities $ (204,656 ) $ (162,965 ) 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, 2016 , the earliest year remaining open for Federal audit and/or settlement is 2012 and for the states it ranges from 2009 - 2012 . 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 Sheets. A reconciliation of the beginning and ending amount of the consolidated liability for unrecognized income tax benefits during the year ended December 31, 2016 and 2015 is shown in the following table. Year Ended December 31, (Thousands of dollars) 2016 2015 Balance at January 1 $ 5,450 $ 6,101 Additions for tax positions related to prior years 3,771 222 Additions for tax positions related to current year — — Settlements with taxing authorities — — Expiration of statutes of limitation (1,347 ) (873 ) Balance at December 31 $ 7,874 $ 5,450 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, 2016 , 2015 and 2014 included interest and penalties of $1.5 million , $0.7 million and $1.1 million , 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 2017 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 Income Statement during 2017 .

Incentive Plans

Incentive Plans	12 Months Ended
	Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Incentive Plans	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. 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, 2013 to December 31, 2016, the Company granted a total of 1,653,061 awards from the MUSA 2013 Plan which leaves 3,846,939 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). At present, the Company expects to issue all shares that vest out of existing treasury shares rather than issuing new common shares. 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, 83,674 time-based restricted stock units have been granted under the terms of the Directors Plan which leaves 416,326 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. December 31, (Thousands of dollars) 2016 2015 2014 Compensation charged against income before income tax benefit $ 9,314 $ 9,015 $ 10,435 Related income tax benefit recognized in income $ 3,259 $ 3,155 $ 3,652 As of December 31, 2016 , there was $13.3 million in compensation costs to be expensed over approximately the next 2.0 years related to unvested share-based compensation arrangements granted by the Company. Employees who have stock options are required to net settle their options in shares, after applicable statutory withholding taxes are considered, upon each stock option exercise. Therefore, no cash is received upon exercise. Total income tax benefits realized from tax deductions related to stock option exercises under share-based payment arrangements were $1.6 million , $3.1 million , and $0.5 million for the years ended December 31, 2016 , 2015 , and 2014 , respectively. 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 7 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 ranged 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 year ended December 31, 2013. In February 2016 , 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, 2016 2015 2014 Fair value per option grant $ 16.08 $ 20.18 $ 11.44 Assumptions Dividend yield — — — Expected volatility 26.1 % 29.3 % 31.7 % Risk-free interest rate 1.26 % 1.52 % 1.37 % Expected life 5.7 years 5.0 years 4.6 years Changes in options outstanding for Company employees during the period from December 31, 2013 to December 31, 2016 are presented in the following table: Number of Shares Average Exercise Price Outstanding at December 31, 2013 621,149 $ 35.13 Granted 127,400 39.46 Vested and issued (74,766 ) 34.21 Forfeited (13,148 ) 38.36 Outstanding at December 31, 2014 660,635 36.00 Granted at FMV 72,350 70.57 Exercised (236,620 ) 33.80 Forfeited (30,609 ) 40.21 Outstanding at December 31, 2015 465,756 42.22 Granted at FMV 96,500 59.11 Exercised (126,969 ) 34.48 Forfeited (14,350 ) 58.28 Outstanding at December 31, 2016 420,937 $ 47.88 Exercisable at December 31, 2014 88,445 $ 34.54 Exercisable at December 31, 2015 127,077 $ 36.71 Exercisable at December 31, 2016 218,937 $ 38.32 Additional information about stock options outstanding at December 31, 2016 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 60,414 2.9 $ 1,667,576 60,414 2.9 $ 1,667,576 $37.07 to $39.45 2,574 1.1 62,798 2,574 1.1 62,798 $39.46 to $40.25 202,799 3.6 4,369,459 155,949 3.4 3,338,290 $40.26 to $70.57 155,150 5.7 212,872 — 0.0 — 420,937 4.2 $ 6,312,705 218,937 3.2 $ 5,068,664 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, 2016 . In 2016 , the Committee granted time based restricted stock to certain employees. These awards were granted under the MUSA 2013 Plan and vest over 3 years . (Number of units) Employee RSU's 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 Granted 55,450 Vested and issued (66,116 ) Forfeited (30,049 ) Outstanding at December 31, 2015 356,300 Granted 74,325 Vested and issued (142,392 ) Forfeited (18,888 ) Outstanding at December 31, 2016 269,345 PERFORMANCE-BASED RESTRICTED STOCK UNITS (MUSA 2013 Plan) – In February 2016 , 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 16 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 $82.94 per unit. For the ROACE portion of the awards, the valuation was based on the grant date fair value of $59.11 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 Granted 40,400 Vested and issued — Forfeited (10,006 ) Outstanding at December 31, 2015 102,394 Granted 53,300 Vested and issued — Forfeited (7,954 ) Outstanding at December 31, 2016 147,740 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, 2013 28,413 Granted 22,437 Vested and issued — Forfeited — Outstanding at December 31, 2014 50,850 Granted 12,924 Vested and issued — Forfeited — Outstanding at December 31, 2015 63,774 Granted 19,900 Vested and issued (34,332 ) Forfeited — Outstanding at December 31, 2016 49,342

Employee and Retiree Benefit Pl

Employee and Retiree Benefit Plans	12 Months Ended
	Dec. 31, 2016
Compensation and Retirement Disclosure [Abstract]
Employee and Retiree Benefit Plans	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 postretirement 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. 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 $10.5 million in 2016 , $9.2 million in 2015 and $8.9 million in 2014 . 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 $1.8 million in 2016 , $1.8 million in 2015 and $1.8 million in 2014 .

Financial Instruments and Risk

Financial Instruments and Risk Management	12 Months Ended
	Dec. 31, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Financial Instruments and Risk Management	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”). As of December 31, 2016 , all current derivative activity is immaterial. At December 31, 2016 and 2015 cash deposits of $1.8 million and $1.6 million , respectively, related to commodity derivative contracts were reported in Prepaid expenses and other current assets in the Consolidated Balance Sheets. These cash deposits have not been used to reduce the reported net liabilities on the derivative contracts at December 31, 2016 and 2015 .

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2016
Earnings Per Share [Abstract]
Earnings Per Share	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 authorized 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 program, the Company had acquired 1,040,636 shares of common stock for an average price of $48.07 per share including brokerage fees. In October 2014, the Company announced a $250 million share repurchase program that was completed prior to the end of 2015. In this repurchase, 4,196,349 shares were repurchased for an average price of $59.58 per share. On January 25, 2016, the Company announced that it would proceed with an independent growth plan in which we will concentrate on acquiring land from third parties rather than acquiring land directly from Walmart. In conjunction with this announcement, the Board of Directors approved a strategic allocation of capital for the Company to pursue new additional growth opportunities and to undertake a share repurchase program of the Company's common stock. The Board authorized up to $500 million in total for the two capital programs through December 31, 2017. For the twelve months ended December 31, 2016 , the Company has acquired 4,903,198 shares of common stock for an average price of $65.93 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, 2016 , 2015 and 2014 (in thousands, except per share amounts): Years ended December 31, (Thousands of dollars except per share amounts) 2016 2015 2014 Earnings per common share: Net income per share - basic Income from continuing operations $ 221,492 $ 137,591 $ 222,960 Income from discontinued operations $ — $ 38,749 $ 20,903 Net income attributable to common stockholders $ 221,492 $ 176,340 $ 243,863 Weighted average common shares outstanding (in thousands) 39,269 43,434 46,104 Earnings per share: Continuing operations $ 5.64 $ 3.17 $ 4.84 Discontinued operations $ — $ 0.89 $ 0.45 Total earnings per share $ 5.64 $ 4.06 $ 5.29 Earnings per common share - assuming dilution: Years ended December 31, 2016 2015 2014 Net income per share - diluted Income from continuing operations $ 221,492 $ 137,591 $ 222,960 Income from discontinued operations $ — $ 38,749 $ 20,903 Net income attributable to common stockholders $ 221,492 $ 176,340 $ 243,863 Weighted average common shares outstanding (in thousands) 39,269 43,434 46,104 Common equivalent shares: Dilutive options 377 360 313 Weighted average common shares outstanding - assuming dilution (in thousands) 39,646 43,794 46,417 Earnings per share: Continuing operations $ 5.59 $ 3.14 $ 4.81 Discontinued operations $ — $ 0.88 $ 0.45 Earnings per share - assuming dilution $ 5.59 $ 4.02 $ 5.26

Other Financial Information

Other Financial Information	12 Months Ended
	Dec. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Other Financial Information	Other Financial Information OTHER OPERATING REVENUES – Other operating revenues in the Consolidated Income Statements includes the following items: (Thousands of dollars) 2016 2015 2014 Renewable Identification Numbers (RINs) sales $ 181,138 $ 117,513 $ 92,916 Other 4,206 3,321 3,193 Total other operating revenue $ 185,344 $ 120,834 $ 96,109 CASH FLOW DISCLOSURES — Cash income taxes paid, net of refunds, were $70.8 million , $113.5 million and $158.1 million for the three years ended December 31, 2016 , 2015 and 2014 , respectively. Interest paid, net of amounts capitalized, was $37.1 million , $31.8 million and $34.0 million for the years ended December 31, 2016 , 2015 and 2014 , respectively. CHANGES IN WORKING CAPITAL - (Thousands of dollars) 2016 2015 2014 Accounts receivable $ (47,203 ) $ 2,857 $ 59,519 Inventories 2,143 1,121 750 Prepaid expenses and other current assets 13,705 (27,107 ) 477 Accounts payable and accrued liabilities 83,384 1,043 (53,234 ) Income taxes payable 1,697 (25,599 ) (37,325 ) Current deferred income tax liabilities — 1,099 (6,662 ) Net decrease (increase) in noncash operating working capital $ 53,726 $ (46,586 ) $ (36,475 )

Assets and Liabilities Measure

Assets and Liabilities Measure at Fair Value	12 Months Ended
	Dec. 31, 2016
Fair Value Disclosures [Abstract]
Assets and Liabilities Measure at Fair Value	Assets and Liabilities Measured at Fair Value The Company carries certain assets and liabilities at fair value in its Consolidated 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. At the balance sheet date the fair value of derivatives contracts were determined using NYMEX quoted values but were immaterial. 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, 2016 and 2015 . 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. December 31, 2016 December 31, 2015 Carrying Carrying (Thousands of dollars) Amount Fair Value Amount Fair Value Financial liabilities Current and long-term debt $ (670,218 ) $ (690,114 ) $ (490,382 ) $ (511,916 )

Commitments

Commitments	12 Months Ended
	Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Commitments	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 $10.4 million in 2017 , $9.9 million in 2018 , $9.8 million in 2019 , $9.6 million in 2020 , and $9.4 million in 2021 . Rental expense for noncancelable operating leases, including contingent payments when applicable, was $23.2 million in 2016 , $22.4 million in 2015 and $8.5 million in 2014 . Operating lease expense related to discontinued operations was $0.0 million , $2.7 million , and $2.9 million in 2016 , 2015 , and 2014 , respectively. Commitments for capital expenditures were approximately $192.5 million at December 31, 2016 , including $152.4 million for construction of future Murphy USA and Murphy Express gasoline stations (including land) in process at year-end, along with $6.9 million for improvements of existing stations, to be financed with our operating cash flow and/or incurrence of indebtedness. The Company has certain take-or-pay contracts primarily to supply our waterborne terminals with a noncancellable remaining term of two years . At December 31, 2016, our minimum annual payments under our take-or-pay contracts are estimated to be $196.1 million in both 2017 and 2018. To estimate our annual commitments under this supply arrangement, we applied Argus posted pricing as of December 31, 2016 on the refined product mix to be delivered under the contract's minimum purchase requirements.

Contingencies

Contingencies	12 Months Ended
	Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Contingencies	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, 2016 , 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, 2016 . 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. 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 $1.0 million per occurrence, general liability insurance with a deductible of $3.0 million per occurrence, and auto liability insurance with a deductible of $0.3 million per occurrence. As of December 31, 2016 , 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 Balance Sheets. While the ultimate outcome of these claims cannot presently be determined, management believes that the accrued liability of $19.7 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 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, 2016 , the Company had contingent liabilities of $16.9 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 Reporting

Recent Accounting and Reporting Rules	12 Months Ended
	Dec. 31, 2016
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Recent Accounting and Reporting Rules	Recent Accounting and Reporting Rules 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 Company will adopt ASU No. 2014-09 beginning January 1, 2018. The Company is currently determining the overall impacts that the ASU will have on its various revenue streams and consolidated financial statements and will update existing controls and processes to comply with the guidance. During our evaluation process, the Company will perform a detailed review of contracts for all types of revenue sources and will compare our current accounting policies and practices to the new standard. We anticipate completing this detailed review of existing revenue streams by the end of the first quarter of 2017 and will progress into the next phase of our comprehensive review process at that time. Until this analysis exercise is completed, the Company is unable to predict the potential impact of adoption of this standard to the Company's overall consolidated financial statements. 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 was adopted for the year ended December 31, 2016. In November 2015, the FASB issued ASU No. 2015-17, "Balance Sheet Classification of Deferred Taxes," which requires entities with a classified balance sheet to present all deferred tax assets and liabilities as noncurrent. All deferred tax assets and liabilities will still be offset by each tax-paying jurisdiction, but the resulting net item must be shown as a single, noncurrent amount. The ASU allows for either prospective or retrospective transition methods. The new standard is effective for annual and interim periods in fiscal years beginning after December 15, 2016. Early adoption at the beginning of an interim or annual period is allowed for all entities. The Company adopted the new standard for the first quarter of 2016. No significant financial impact was recorded with the adoption of this ASU. In February 2016, the FASB issued ASU No. 2016-02, "Leases (Topic 842)" (“ASU 2016-02”). ASU 2016-02 amends the existing accounting standards for lease accounting, including requiring lessees to recognize most leases on their balance sheets. Lessor accounting will remain similar to lessor accounting under previous GAAP, while aligning with the FASB’s new revenue recognition guidance. ASU 2016-02 is effective for the Company beginning January 1, 2019. Early adoption of ASU 2016-02 is permitted. The standard requires a modified retrospective transition approach for all leases existing at, or entered into after, the date of initial application, with an option to use certain transition relief. While this ASU will have impact on our internal processes and controls and result in a change to our accounting, we are still in the evaluation and information gathering stage of implementing the guidance and cannot yet estimate the potential impact. In March 2016, the FASB issued ASU No. 2016-09, "Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting", which amends the current stock compensation guidance. The amendments simplify the accounting for the taxes related to stock based compensation, including adjustments to how excess tax benefits and a company’s payments for tax withholdings should be classified. The standard is effective for fiscal periods beginning after December 15, 2016, with early adoption permitted. While we do not anticipate this ASU having a significant financial impact, we are currently evaluating the adoption of this standard on our consolidated financial statements and expect to adopt the standard effective January 1, 2017.

Business Segments

Business Segments	12 Months Ended
	Dec. 31, 2016
Segment Reporting [Abstract]
Business Segments	Business Segments Our operations include the sale of retail motor fuel products and convenience merchandise along with the wholesale and bulk sale capabilities of our product supply and wholesale group. As the primary purpose of the product supply and wholesale group is to support our retail operations and provide fuel for their daily operation, the bulk and wholesale fuel sales are secondary to the support functions played by these groups. As such, they are all treated as one segment for reporting purposes as they sell the same products. This Marketing segment contains essentially all of the revenue generating activities of the Company. Results not included in the reportable segment include Corporate and Other Assets and Discontinued Operations. The reportable segment was determined based on information reviewed by the Chief Operating Decision Maker (CODM). Segment Information Corporate and Discontinued (Thousands of dollars) Marketing Other Assets Operations Consolidated Year ended December 31, 2016 Segment income (loss) $ 249,790 (28,298 ) — $ 221,492 Revenues from external customers 11,594,311 242 — 11,594,553 Interest income — 578 — 578 Interest expense (53 ) (39,651 ) — (39,704 ) Income tax expense (benefit) 147,217 (16,678 ) — 130,539 Significant noncash charges (credits) Depreciation and amortization 92,242 6,368 — 98,610 Accretion of asset retirement obligations 1,650 — — 1,650 Deferred and noncurrent income taxes (benefits) 51,290 (10,883 ) — 40,407 Additions to property, plant and equipment 239,095 24,761 — 263,856 Total assets at year-end $ 1,858,055 230,685 — $ 2,088,740 Segment Information Corporate and Discontinued (Thousands of dollars) Marketing Other Assets Operations Consolidated Year ended December 31, 2015 Segment income (loss) $ 159,796 (22,205 ) 38,749 $ 176,340 Revenues from external customers 12,699,125 286 — 12,699,411 Interest income — 2,177 — 2,177 Interest expense (20 ) (33,511 ) — (33,531 ) Income tax expense (benefit) 95,657 (14,959 ) — 80,698 Significant noncash charges (credits) Depreciation and amortization 81,349 5,219 — 86,568 Accretion of asset retirement obligations 1,521 — — 1,521 Deferred and noncurrent income taxes (benefits) 42,593 (2,037 ) — 40,556 Additions to property, plant and equipment 202,371 9,477 3,720 215,568 Total assets at year-end $ 1,727,131 159,110 — $ 1,886,241 Year ended December 31, 2014 Segment income (loss) $ 242,434 (19,474 ) 20,903 $ 243,863 Revenues from external customers 16,985,903 111 — 16,986,014 Interest income — 244 — 244 Interest expense — (36,646 ) — (36,646 ) Income tax expense (benefit) 127,657 (11,271 ) — 116,386 Significant noncash charges (credits) Depreciation and amortization 74,906 4,181 — 79,087 Accretion of asset retirement obligations 1,200 — — 1,200 Deferred and noncurrent income taxes (benefits) 368 (4,771 ) — (4,403 ) Additions to property, plant and equipment 131,139 4,200 3,549 138,888 Total assets at year-end $ 1,544,018 348,991 56,328 $ 1,949,337

Guarantor Subsidiaries

Guarantor Subsidiaries	12 Months Ended
	Dec. 31, 2016
Guarantor Subsidiaries [Abstract]
Guarantor Subsidiaries	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 schedules present financial information on a consolidated basis in conformity with the SEC’s Regulation S-X Rule 3-10(d): CONSOLIDATING BALANCE SHEET (Thousands of dollars) December 31, 2016 Assets Parent Company Issuer Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Current assets Cash and cash equivalents $ — $ 153,813 $ — $ — $ — $ 153,813 Accounts receivable—trade, less allowance for doubtful accounts of $1,891 in 2016 — 183,519 — — — 183,519 Inventories, at lower of cost or market — 153,351 — — — 153,351 Prepaid expenses and other current assets — 24,871 — — — 24,871 Total current assets — 515,554 — — — 515,554 Property, plant and equipment, at cost less accumulated depreciation and amortization of $780,426 in 2016 — 1,532,655 — — — 1,532,655 Restricted cash — — — — — — Investments in subsidiaries 1,978,110 144,917 — — (2,123,027 ) — Other assets — 40,531 — — — 40,531 Total assets $ 1,978,110 $ 2,233,657 $ — $ — $ (2,123,027 ) $ 2,088,740 Liabilities and Stockholders' Equity Current liabilities Current maturities of long-term debt $ — $ 40,596 $ — $ — $ — $ 40,596 Inter-company accounts payable 623,316 (416,914 ) (52,064 ) (154,338 ) — — Trade accounts payable and accrued liabilities — 473,370 — — — 473,370 Income taxes payable — 591 3 — — 594 Deferred income taxes — — — — — — Total current liabilities 623,316 97,643 (52,061 ) (154,338 ) — 514,560 Long-term debt, including capitalized lease obligations — 629,622 — — — 629,622 Deferred income taxes — 204,656 — — — 204,656 Asset retirement obligations — 26,200 — — — 26,200 Deferred credits and other liabilities — 16,626 — — — 16,626 Total liabilities 623,316 974,747 (52,061 ) (154,338 ) — 1,391,664 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, 2016) 468 1 60 — (61 ) 468 Treasury stock (9,831,196 shares held at December 31, 2016) (608,001 ) — — — — (608,001 ) Additional paid in capital (APIC) 1,213,056 571,117 52,004 87,543 (1,368,382 ) 555,338 Retained earnings 749,271 687,792 (3 ) 66,795 (754,584 ) 749,271 Total stockholders' equity 1,354,794 1,258,910 52,061 154,338 (2,123,027 ) 697,076 Total liabilities and stockholders' equity $ 1,978,110 $ 2,233,657 $ — $ — $ (2,123,027 ) $ 2,088,740 CONSOLIDATING BALANCE SHEET (Thousands of dollars) December 31, 2015 Assets Parent Company Issuer Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Current assets Cash and cash equivalents $ — $ 102,335 $ — $ — $ — $ 102,335 Accounts receivable—trade, less allowance for doubtful accounts of $1,963 in 2015 — 136,253 — — — 136,253 Inventories, at lower of cost or market — 155,906 — — — 155,906 Prepaid expenses and other current assets — 41,173 — — — 41,173 Total current assets — 435,667 — — — 435,667 Property, plant and equipment, at cost less accumulated depreciation and amortization of $724,486 in 2015 — 1,369,318 — — — 1,369,318 Investments in subsidiaries 1,756,617 144,921 — — (1,901,538 ) — Restricted cash — 68,571 — — — 68,571 Other assets — 12,685 — — — 12,685 Total assets $ 1,756,617 $ 2,031,162 $ — $ — $ (1,901,538 ) $ 1,886,241 Liabilities and Stockholders' Equity Current liabilities Current maturities of long-term debt $ — $ 222 $ — $ — $ — $ 222 Inter-company accounts payable 300,044 (93,644 ) (52,062 ) (154,338 ) — — Trade accounts payable and accrued liabilities — 390,341 — — — 390,341 Income taxes payable — — — — — — Deferred income taxes — 1,729 — — — 1,729 Total current liabilities 300,044 298,648 (52,062 ) (154,338 ) — 392,292 Long-term debt, including capitalized lease obligations — 490,160 — — — 490,160 Deferred income taxes — 161,236 — — — 161,236 Asset retirement obligations — 24,345 — — — 24,345 Deferred credits and other liabilities — 25,918 — — — 25,918 Total liabilities 300,044 1,000,307 (52,062 ) (154,338 ) — 1,093,951 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, 2015) 468 1 60 — (61 ) 468 Treasury stock (5,088,434 shares held at December 31, 2015) (294,139 ) — — — — (294,139 ) Additional paid in capital (APIC) 1,222,465 564,554 52,004 87,543 (1,368,384 ) 558,182 Retained earnings 527,779 466,300 (2 ) 66,795 (533,093 ) 527,779 Total stockholders' equity 1,456,573 1,030,855 52,062 154,338 (1,901,538 ) 792,290 Total liabilities and stockholders' equity $ 1,756,617 $ 2,031,162 $ — $ — $ (1,901,538 ) $ 1,886,241 CONSOLIDATING INCOME STATEMENT (Thousands of dollars) Year ended December 31, 2016 Revenues Parent Company Issuer Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Petroleum product sales $ — $ 9,070,623 $ — $ — $ — $ 9,070,623 Merchandise sales — 2,338,586 — — — 2,338,586 Other operating revenues — 185,344 — — — 185,344 Total revenues — 11,594,553 — — — 11,594,553 Costs and operating expenses Petroleum product cost of goods sold — 8,603,953 — — — 8,603,953 Merchandise cost of goods sold — 1,974,486 — — — 1,974,486 Station and other operating expenses — 493,320 — — — 493,320 Depreciation and amortization — 98,610 — — — 98,610 Selling, general and administrative — 122,668 1 — — 122,669 Accretion of asset retirement obligations — 1,650 — — — 1,650 Total costs and operating expenses — 11,294,687 1 — — 11,294,688 Income (loss) from operations — 299,866 (1 ) — — 299,865 Other income (expense) Interest income — 578 — — — 578 Interest expense — (39,704 ) — — — (39,704 ) Gain on sale of assets — 88,212 — — — 88,212 Other nonoperating income — 3,080 — — — 3,080 Total other income (expense) — 52,166 — — — 52,166 Income (loss) from continuing operations before income taxes — 352,032 (1 ) — — 352,031 Income tax expense — 130,539 — — — 130,539 Income (loss) from continuing operations — 221,493 (1 ) — — 221,492 Income from discontinued operations, net of income taxes — — — — — — Equity earnings in affiliates, net of tax 221,492 (1 ) — — (221,491 ) — Net Income (Loss) $ 221,492 $ 221,492 $ (1 ) $ — $ (221,491 ) $ 221,492 CONSOLIDATING INCOME STATEMENT (Thousands of dollars) Year ended December 31, 2015 Revenues Parent Company Issuer Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Petroleum product sales $ — $ 10,424,855 $ — $ — $ (120,166 ) $ 10,304,689 Merchandise sales — 2,273,888 — — — 2,273,888 Other operating revenues — 120,834 — — — 120,834 Total revenues — 12,819,577 — — (120,166 ) 12,699,411 Costs and operating expenses Petroleum product cost of goods sold — 9,914,641 — — (120,166 ) 9,794,475 Merchandise cost of goods sold — 1,946,423 — — — 1,946,423 Station and other operating expenses — 486,383 — — — 486,383 Depreciation and amortization — 86,568 — — — 86,568 Selling, general and administrative — 129,276 1 — — 129,277 Accretion of asset retirement obligations — 1,521 — — — 1,521 Total costs and operating expenses — 12,564,812 1 — (120,166 ) 12,444,647 Income (loss) from operations — 254,765 (1 ) — — 254,764 Other income (expense) Interest income — 2,177 — — — 2,177 Interest expense — (33,531 ) — — — (33,531 ) Loss on sale of assets — (4,658 ) — — — (4,658 ) Other nonoperating expense — (463 ) — — — (463 ) Total other income (expense) — (36,475 ) — — — (36,475 ) Income (loss) from continuing operations before income taxes — 218,290 (1 ) — — 218,289 Income tax expense — 80,698 — — — 80,698 Income (loss) from continuing operations — 137,592 (1 ) — — 137,591 Income from discontinued operations, net of income taxes — — — 38,749 — 38,749 Equity earnings in affiliates, net of tax 176,340 (22,731 ) — (61,479 ) (92,130 ) — Net Income (Loss) $ 176,340 $ 114,861 $ (1 ) $ (22,730 ) $ (92,130 ) $ 176,340 CONSOLIDATING INCOME STATEMENT (Thousands of dollars) Year ended December 31, 2014 Revenues Parent Company Issuer Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Petroleum product sales $ — $ 14,911,658 $ — $ — $ (183,131 ) $ 14,728,527 Merchandise sales — 2,161,378 — — — 2,161,378 Other operating revenues — 96,109 — — — 96,109 Total revenues — 17,169,145 — — (183,131 ) 16,986,014 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 Station and other operating expenses — 486,762 — — — 486,762 Depreciation and amortization — 79,087 — — — 79,087 Selling, general and administrative — 119,265 1 — — 119,266 Accretion of asset retirement obligations — 1,200 — — — 1,200 Total costs and operating expenses — 16,803,756 1 — (183,131 ) 16,620,626 Income (loss) from operations — 365,389 (1 ) — — 365,388 Other income (expense) Interest income — 244 — — — 244 Interest expense — (36,646 ) — — — (36,646 ) Gain on sale of assets — 194 — — — 194 Other nonoperating income — 10,166 — — — 10,166 Total other income (expense) — (26,042 ) — — — (26,042 ) Income (loss) from continuing operations before income taxes — 339,347 (1 ) — — 339,346 Income tax expense — 116,386 — — — 116,386 Income (loss) from continuing operations — 222,961 (1 ) — — 222,960 Income from discontinued operations, net of income taxes — — — 20,903 — 20,903 Equity earnings in affiliates, net of tax 351,439 89,524 — — (440,963 ) — Net Income (Loss) $ 351,439 $ 312,485 $ (1 ) $ 20,903 $ (440,963 ) $ 243,863 CONSOLIDATING STATEMENT OF CASH FLOWS (Thousands of dollars) Year ended December 31, 2016 Operating Activities Parent Company Issuer Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Net income (loss) $ 221,492 $ 221,492 $ (1 ) $ — $ (221,491 ) $ 221,492 Adjustments to reconcile net income (loss) to net cash provided by operating activities Income from discontinued operations, net of tax — — — — — — Depreciation and amortization — 98,610 — — — 98,610 Deferred and noncurrent income tax charges (credits) — 40,407 — — — 40,407 Accretion of asset retirement obligations — 1,650 — — — 1,650 Pretax gains from sale of assets — (88,212 ) — — — (88,212 ) Net decrease (increase) in noncash operating working capital — 53,726 — — — 53,726 Equity in earnings (221,492 ) 1 — — 221,491 — Other operating activities - net — 9,767 — — — 9,767 Net cash provided by (used in) continuing operations — 337,441 (1 ) — — 337,440 Net cash used in discontinued operations — — — — — — Net cash provided by (used in) operating activities — 337,441 (1 ) — — 337,440 Investing Activities Property additions — (262,144 ) — — — (262,144 ) Proceeds from sale of assets — 85,327 — — — 85,327 Changes in restricted cash — 68,571 — — — 68,571 Other investing activities - net — (28,963 ) — — — (28,963 ) Sales proceeds — — — — — — Other — 2,355 — — — 2,355 Net cash provided by (required by) investing activities — (134,854 ) — — — (134,854 ) Financing Activities Purchase of treasury stock (323,272 ) — — — — (323,272 ) Repayments of long-term debt — (20,438 ) — — — (20,438 ) Additions to long-term debt — 200,000 — — — 200,000 Debt issuance costs — (3,240 ) — — — (3,240 ) Amounts related to share-based compensation — (4,158 ) — — — (4,158 ) Net distributions to parent 323,272 (323,273 ) 1 — — — Net cash provided by (required by) financing activities — (151,109 ) 1 — — (151,108 ) Net change in cash and cash equivalents — 51,478 — — — 51,478 Cash and cash equivalents at January 1 — 102,335 — — — 102,335 Cash and cash equivalents at December 31 $ — $ 153,813 $ — $ — $ — $ 153,813 Less: Cash and cash equivalents held for sale — — — — — — Cash and cash equivalents of continuing operations at December 31 $ — $ 153,813 $ — $ — $ — $ 153,813 CONSOLIDATING STATEMENT OF CASH FLOWS (Thousands of dollars) Year ended December 31, 2015 Operating Activities Parent Company Issuer Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Net income (loss) $ 176,340 $ 114,861 $ (1 ) $ (22,730 ) $ (92,130 ) $ 176,340 Adjustments to reconcile net income (loss) to net cash provided by operating activities Income from discontinued operations, net of tax — — — (38,749 ) — (38,749 ) Depreciation and amortization — 86,568 — — — 86,568 Deferred and noncurrent income tax charges (credits) — 40,556 — — — 40,556 Accretion of asset retirement obligations — 1,521 — — — 1,521 Pretax losses from sale of assets — 4,658 — — — 4,658 Net decrease (increase) in noncash operating working capital — (46,586 ) — — — (46,586 ) Equity in earnings (176,340 ) 22,731 — 61,479 92,130 — Other operating activities - net — 9,417 — — — 9,417 Net cash provided by (used in) continuing operations — 233,726 (1 ) — — 233,725 Net cash provided by discontinued operations — — — (17,887 ) — (17,887 ) Net cash provided by (used in) operating activities — 233,726 (1 ) (17,887 ) — 215,838 Investing Activities Property additions — (205,225 ) — — — (205,225 ) Proceeds from sale of assets — 729 — — — 729 Changes in restricted cash — (68,571 ) — — — (68,571 ) Other investing activities - net — (2,889 ) — — — (2,889 ) Sales proceeds — — — 93,765 — 93,765 Other — — — (7,443 ) — (7,443 ) Net cash provided by (required by) investing activities — (275,956 ) — 86,322 — (189,634 ) Financing Activities Purchase of treasury stock (248,695 ) — — — — (248,695 ) Repayments of long-term debt — (146 ) — — — (146 ) Additions to long-term debt — — — — — — Debt issuance costs — (58 ) — — — (58 ) Amounts related to share-based compensation — (3,075 ) — — — (3,075 ) Net distributions to parent 248,695 (179,319 ) 1 (69,377 ) — — Net cash provided by (required by) financing activities — (182,598 ) 1 (69,377 ) — (251,974 ) Net change in cash and cash equivalents — (224,828 ) — (942 ) — (225,770 ) Cash and cash equivalents at January 1 — 327,163 — 942 — 328,105 Cash and cash equivalents at December 31 $ — $ 102,335 $ — $ — $ — $ 102,335 Less: Cash and cash equivalents held for sale — — — — — — Cash and cash equivalents of continuing operations at December 31 $ — $ 102,335 $ — $ — $ — $ 102,335 CONSOLIDATING STATEMENT OF CASH FLOWS W (Thousands of dollars) Year ended December 31, 2014 Operating Activities Parent Company Issuer Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Net income (loss) $ 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 — — — (20,903 ) — (20,903 ) Depreciation and amortization — 79,087 — — — 79,087 Deferred and noncurrent income tax charges (credits) — (4,403 ) — — — (4,403 ) Accretion of asset retirement obligations — 1,200 — — — 1,200 Pretax gains from sale of assets — (194 ) — — — (194 ) Net decrease (increase) in noncash operating working capital — (36,475 ) — — — (36,475 ) Equity in earnings (351,439 ) (89,524 ) — — 440,963 — Other operating activities - net — 14,531 — — — 14,531 Net cash provided by (used in) continuing operations — 276,707 (1 ) — — 276,706 Net cash provided by discontinued operations — — — 28,876 — 28,876 Net cash provided by (used in) operating activities — 276,707 (1 ) 28,876 — 305,582 Investing Activities Property additions — (135,339 ) — — — (135,339 ) Proceeds from sale of assets — 376 — — — 376 Other investing activities - net — (10,631 ) — — — (10,631 ) Sales proceeds — — — 1,097 — 1,097 Other — — — (4,918 ) — (4,918 ) Net cash provided by (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 — — — — — — 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 change 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 Less: Cash and cash equivalents held for sale — — — 942 — 942 Cash and cash equivalents of continuing operations at December 31 $ — $ 327,163 $ — $ — $ — $ 327,163 CONSOLIDATING STATEMENT OF CHANGES IN EQUITY (Thousands of dollars) Year ended December 31, 2016 Statement of Stockholders' Equity Parent Company Issuer Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Common Stock Balance as of December 31, 2015 $ 468 $ 1 $ 60 $ — $ (61 ) $ 468 Issuance of common stock — — — — — — Balance as of December 31, 2016 $ 468 $ 1 $ 60 $ — $ (61 ) $ 468 Treasury Stock Balance as of December 31, 2015 $ (294,139 ) $ — $ — $ — $ — $ (294,139 ) Issuance of common stock 9,410 — — — — 9,410 Repurchase of common stock (323,272 ) — — — — (323,272 ) Balance as of December 31, 2016 $ (608,001 ) $ — $ — $ — $ — $ (608,001 ) APIC Balance as of December 31, 2015 $ 1,222,466 $ 564,551 $ 52,004 $ 87,543 $ (1,368,382 ) $ 558,182 Issuance of common stock (9,410 ) — — — — (9,410 ) Amounts related to share-based compensation — (2,748 ) — — — (2,748 ) Share-based compensation expense — 9,314 — — — 9,314 Balance as of December 31, 2016 $ 1,213,056 $ 571,117 $ 52,004 $ 87,543 $ (1,368,382 ) $ 555,338 Retained Earnings Balance as of December 31, 2015 $ 527,779 $ 466,300 $ (2 ) $ 66,795 $ (533,093 ) $ 527,779 Net income 221,492 221,492 (1 ) — (221,491 ) 221,492 Balance as of December 31, 2016 $ 749,271 $ 687,792 $ (3 ) $ 66,795 $ (754,584 ) $ 749,271 CONSOLIDATING STATEMENTS OF CHANGES IN EQUITY (Thousands of dollars) Year ended December 31, 2015 Statement of Stockholders' Equity Parent Company Issuer Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Common Stock Balance as of December 31, 2014 $ 468 $ 1 $ 60 $ — $ (61 ) $ 468 Issuance of common stock — — — — — — Balance as of December 31, 2015 $ 468 $ 1 $ 60 $ — $ (61 ) $ 468 Treasury Stock Balance as of December 31, 2014 $ (51,073 ) $ — $ — $ — $ — $ (51,073 ) Issuance of common stock 5,629 — — — — 5,629 Repurchase of common stock (248,695 ) — — — — (248,695 ) Balance as of December 31, 2015 $ (294,139 ) $ — $ — $ — $ — $ (294,139 ) APIC Balance as of December 31, 2014 $ 1,228,095 $ 558,611 $ 52,004 $ 35,677 $ (1,316,516 ) $ 557,871 Issuance of common stock (5,629 ) — — — — (5,629 ) Amounts related to share-based compensation — (3,075 ) — — — (3,075 ) Reclassification of equity — — — 51,866 (51,866 ) — Share-based compensation expense — 9,015 — — — 9,015 Balance as of December 31, 2015 $ 1,222,466 $ 564,551 $ 52,004 $ 87,543 $ (1,368,382 ) $ 558,182 Retained Earnings Balance as of December 31, 2014 $ 351,439 $ 351,439 $ (1 ) $ 89,525 $ (440,963 ) $ 351,439 Net income 176,340 114,861 (1 ) (22,730 ) (92,130 ) 176,340 Balance as of December 31, 2015 $ 527,779 $ 466,300 $ (2 ) $ 66,795 $ (533,093 ) $ 527,779 CONSOLIDATED STATEMENTS 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 Consolidated 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 ) Amounts related to share-based compensation — (582 ) — — — (582 ) 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 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

Supplemental Quarterly Informat

Supplemental Quarterly Information	12 Months Ended
	Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Supplemental Quarterly Information	Murphy USA Inc. Supplemental Quarterly Information (Unaudited) First Second Third Fourth (Millions of dollars except per share amounts) Quarter Quarter Quarter Quarter Year Year Ended December 31, 2016 Sales and other operating revenues $ 2,490.3 $ 3,005.8 $ 3,042.7 $ 3,055.8 $ 11,594.6 Income from continuing operations before income taxes $ 139.3 $ 74.1 $ 71.8 $ 66.8 $ 352.0 Income from continuing operations $ 85.9 $ 46.3 $ 45.5 $ 43.8 $ 221.5 Net income $ 85.9 $ 46.3 $ 45.5 $ 43.8 $ 221.5 Income from continuing operations (per Common share) Basic $ 2.10 $ 1.18 $ 1.17 $ 1.16 $ 5.64 Diluted $ 2.08 $ 1.17 $ 1.16 $ 1.14 $ 5.59 Net income (per Common share) Basic $ 2.10 $ 1.18 $ 1.17 $ 1.16 $ 5.64 Diluted $ 2.08 $ 1.17 $ 1.16 $ 1.14 $ 5.59 Market price of Common stock 1 High $ 67.18 $ 74.16 $ 79.29 $ 72.56 $ 79.29 Low $ 54.24 $ 57.42 $ 70.08 $ 57.80 $ 54.24 Year Ended December 31, 2015 Sales and other operating revenues $ 2,920.7 $ 3,468.0 $ 3,382.5 $ 2,928.2 $ 12,699.4 Income from continuing operations before income taxes $ 40.9 $ 38.8 $ 94.1 $ 44.5 $ 218.3 Income from continuing operations $ 23.6 $ 24.8 $ 60.0 $ 29.2 $ 137.6 Net income $ 22.9 $ 26.2 $ 60.5 $ 66.7 $ 176.3 Income from continuing operations (per Common share) Basic $ 0.52 $ 0.56 $ 1.41 $ 0.70 $ 3.17 Diluted $ 0.51 $ 0.56 $ 1.40 $ 0.69 $ 3.14 Net income (per Common share) Basic $ 0.50 $ 0.59 $ 1.42 $ 1.60 $ 4.06 Diluted $ 0.50 $ 0.59 $ 1.41 $ 1.58 $ 4.02 Market price of Common stock 1 High $ 73.48 $ 73.47 $ 57.40 $ 65.09 $ 73.48 Low $ 66.82 $ 55.82 $ 48.70 $ 54.17 $ 48.70 1 Prices as quoted on the New York Stock Exchange.

Schedule II - Valuation And Qua

Schedule II - Valuation And Qualifying Accounts	12 Months Ended
	Dec. 31, 2016
Valuation and Qualifying Accounts [Abstract]
Schedule II - Valuation And Qualifying Accounts	SCHEDULE II – VALUATION AND QUALIFYING ACCOUNTS Murphy USA Inc. Valuation Accounts and Reserves (Thousands of dollars) Balance at January 1, Charged (Credited) to Expense Deductions Balance at December 31, 2016 Deducted from assets accounts Allowance for doubtful accounts $ 1,963 — (72 ) 1,891 2015 Deducted from assets accounts Allowance for doubtful accounts $ 4,456 — (2,493 ) 1,963 2014 Deducted from assets accounts Allowance for doubtful accounts $ 4,576 — (120 ) 4,456

Significant Accounting Polici30

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2016
Accounting Policies [Abstract]
Principles of Consolidation	PRINCIPLES OF CONSOLIDATION – These consolidated financial statements were prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) and include the accounts of Murphy USA Inc. and it's subsidiaries for all periods presented. All significant intercompany accounts and transactions within the consolidated 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 stores 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 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 Consolidated Income Statements. Costs incurred for the shipping and handling of convenience store merchandise are included in Merchandise cost of goods sold in the Consolidated Income Statements.
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 Income Statements.
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. 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.
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. Gasoline stations, improvements to 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 nonoperating income. The Company capitalizes interest costs as a component of construction in progress on individually significant projects based on the weighted average interest rates incurred on its long term borrowings. Total interest cost capitalized in 2016 was $0.3 million . The Company has undertaken like-kind exchange ("LKE") transactions under the Federal tax code in an effort to acquire and sell real and personal property in a tax efficient manner. The Company generally enters into forward transactions, in which property is sold and the proceeds are reinvested by acquiring similar property; and reverse transactions, in which property is acquired and similar property is subsequently sold. A qualified LKE intermediary is used to facilitate these LKE transactions. Proceeds from forward LKE transactions are held by the intermediary and are classified as restricted cash on the Company's balance sheet because the funds must be reinvested in similar properties. If the acquisition of suitable LKE properties is not completed within 180 days of the sale of the Company-owned property, the proceeds are distributed to the Company by the intermediary and are reclassified as available cash and applicable income taxes are determined. An exchange accommodation titleholder, a type of variable interest entity, is used to facilitate reverse like-kind exchanges. The acquired assets are held by the exchange accommodation titleholder until the exchange transactions are complete. If the Company determines that it is the primary beneficiary of the exchange accommodation titleholder, the replacements assets held by the exchange accommodation titleholder are consolidated and recorded in Property, Plant and Equipment on the Consolidated Balance Sheets. The unspent proceeds that are held in trust with the intermediary are recorded as noncurrent assets in the Consolidated Balance Sheet as the cash was restricted for the acquisition of property, plant and equipment.
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.
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 positive and negative 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 principles for income tax uncertainties permit recognition of income tax benefits only when they are more likely than not to be realized. 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. 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 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 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. 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, restricted stock units and performance stock units is determined based on a combination of management assumptions for awards issued. The Company uses 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 the Company’s common stock prices. The Company uses both historical data and current information to support its assumptions. Stock option expense is recognized on a straight-line basis over the requisite service period of three years. The Company uses a Monte Carlo valuation model to determine the fair value of performance-based stock units that are based on performance compared against a peer group and the related expense is recognized over the three -year requisite service period. Management estimates the number of all awards 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.
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.
Recent Accounting and Reporting Rules	Recent Accounting and Reporting Rules 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 Company will adopt ASU No. 2014-09 beginning January 1, 2018. The Company is currently determining the overall impacts that the ASU will have on its various revenue streams and consolidated financial statements and will update existing controls and processes to comply with the guidance. During our evaluation process, the Company will perform a detailed review of contracts for all types of revenue sources and will compare our current accounting policies and practices to the new standard. We anticipate completing this detailed review of existing revenue streams by the end of the first quarter of 2017 and will progress into the next phase of our comprehensive review process at that time. Until this analysis exercise is completed, the Company is unable to predict the potential impact of adoption of this standard to the Company's overall consolidated financial statements. 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 was adopted for the year ended December 31, 2016. In November 2015, the FASB issued ASU No. 2015-17, "Balance Sheet Classification of Deferred Taxes," which requires entities with a classified balance sheet to present all deferred tax assets and liabilities as noncurrent. All deferred tax assets and liabilities will still be offset by each tax-paying jurisdiction, but the resulting net item must be shown as a single, noncurrent amount. The ASU allows for either prospective or retrospective transition methods. The new standard is effective for annual and interim periods in fiscal years beginning after December 15, 2016. Early adoption at the beginning of an interim or annual period is allowed for all entities. The Company adopted the new standard for the first quarter of 2016. No significant financial impact was recorded with the adoption of this ASU. In February 2016, the FASB issued ASU No. 2016-02, "Leases (Topic 842)" (“ASU 2016-02”). ASU 2016-02 amends the existing accounting standards for lease accounting, including requiring lessees to recognize most leases on their balance sheets. Lessor accounting will remain similar to lessor accounting under previous GAAP, while aligning with the FASB’s new revenue recognition guidance. ASU 2016-02 is effective for the Company beginning January 1, 2019. Early adoption of ASU 2016-02 is permitted. The standard requires a modified retrospective transition approach for all leases existing at, or entered into after, the date of initial application, with an option to use certain transition relief. While this ASU will have impact on our internal processes and controls and result in a change to our accounting, we are still in the evaluation and information gathering stage of implementing the guidance and cannot yet estimate the potential impact. In March 2016, the FASB issued ASU No. 2016-09, "Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting", which amends the current stock compensation guidance. The amendments simplify the accounting for the taxes related to stock based compensation, including adjustments to how excess tax benefits and a company’s payments for tax withholdings should be classified. The standard is effective for fiscal periods beginning after December 15, 2016, with early adoption permitted. While we do not anticipate this ASU having a significant financial impact, we are currently evaluating the adoption of this standard on our consolidated financial statements and expect to adopt the standard effective January 1, 2017.

Discontinued Operations (Tables

Discontinued Operations (Tables)	12 Months Ended
	Dec. 31, 2016
Hankinson Renewable Energy, LLC [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Summary of Results of Operations of Discontinued Operations	The results of operations associated with the Hankinson discontinued operations are presented in the following table. (Thousands of dollars) 2014 Revenues $ — Income (loss) from operations before income taxes — Gain on sale before income taxes 1,202 Total income (loss) from discontinued operations before taxes 1,202 Provision for income taxes 421 Income (loss) from discontinued operations $ 781
Hereford Production Facility [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Summary of Results of Operations of Discontinued Operations	The following table presents financial results of the Hereford business: Twelve months ended December 31, (Thousands of dollars) 2015 2014 Revenues Ethanol sales $ 154,502 $ 223,904 Total revenues 154,502 223,904 Costs and operating expenses Ethanol cost of goods sold 121,753 158,276 Station and other operating expenses 27,881 34,763 Depreciation and amortization 333 147 Selling, general and administrative expenses 1,382 1,635 Total costs and operating expenses 151,349 194,821 Income from operations 3,153 29,083 Other income (expense) Gain (loss) on sale of assets 60,782 — Other nonoperating income (expense) — 994 Total other income (expense) 60,782 994 Income before income taxes 63,935 30,077 Income taxes 25,186 9,955 Net income $ 38,749 $ 20,122 The following table presents cash flow of the Hereford ethanol plant: Twelve months ended December 31, (Thousands of dollars) 2015 2014 Net cash provided by (used in) discontinued operating activities $ (17,887 ) $ 28,741 Net cash provided by (used in) discontinued investing activities $ 86,322 $ (4,918 )

Change in Accounting Principle

Change in Accounting Principle (Tables)	12 Months Ended
	Dec. 31, 2016
Accounting Changes and Error Corrections [Abstract]
Summary of Adjustments from Change in Accounting Principle	For a summary of the adjustments, see below: Previous Accounting Method Effect of Change In As Reported (thousands of dollars) December 31, 2015 Accounting Principle December 31, 2015 Other assets $ 16,211 $ (3,526 ) $ 12,685 Long-term debt $ 493,686 $ (3,526 ) $ 490,160

Inventories (Tables)

Inventories (Tables)	12 Months Ended
	Dec. 31, 2016
Inventory Disclosure [Abstract]
Summary of Inventory	Inventories consisted of the following: December 31, (Thousands of dollars) 2016 2015 Finished products - FIFO basis $ 207,903 $ 159,774 Less LIFO reserve - finished products (153,319 ) (102,849 ) Finished products - LIFO basis 54,584 56,925 Store merchandise for resale 95,649 94,925 Materials and supplies 3,118 4,056 Total inventories $ 153,351 $ 155,906

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	12 Months Ended
	Dec. 31, 2016
Property, Plant and Equipment [Abstract]
Summary of Property, Plant and Equipment	December 31, 2016 December 31, 2015 (Thousands of dollars) Estimated Useful Life Cost Net Cost Net Land $ 577,743 $ 577,743 $ 555,198 $ 555,198 Pipeline and terminal facilities 16 to 25 years 67,946 41,218 95,244 40,846 Retail gasoline stations 3 to 50 years 1,565,275 867,165 1,367,176 746,747 Buildings 20 to 45 years 33,375 22,310 19,441 8,985 Other 3 to 20 years 68,742 24,219 56,745 17,542 $ 2,313,081 $ 1,532,655 $ 2,093,804 $ 1,369,318

Accounts Payable And Accrued 35

Accounts Payable And Accrued Liabilities (Tables)	12 Months Ended
	Dec. 31, 2016
Payables and Accruals [Abstract]
Schedule of Accounts Payable and Accrued Liabilities	Trade accounts payable and accrued liabilities consisted of the following: December 31, (Thousands of dollars) 2016 2015 Trade accounts payable $ 309,988 $ 226,769 Excise taxes/withholdings payable 76,552 75,704 Accrued insurance obligations 21,631 23,347 Accrued taxes other than income 26,740 26,626 Other 38,459 37,895 Accounts payable and accrued liabilities $ 473,370 $ 390,341

Long-Term Debt (Tables)

Long-Term Debt (Tables)	12 Months Ended
	Dec. 31, 2016
Debt Disclosure [Abstract]
Summary of Long-Term Debt	Long-term debt consisted of the following: December 31, (Thousands of dollars) 2016 2015 6.00% senior notes due 2023 (net of unamortized discount of $5,826 at 2016 and $6,692 at 2015) $ 494,174 $ 493,308 Term loan due 2020 (effective rate of 3.77% at December 31, 2016) 180,000 — Capitalized lease obligations, vehicles, due through 2020 1,451 600 Unamortized debt issuance costs (5,407 ) (3,526 ) Total long-term debt 670,218 490,382 Less current maturities 40,596 222 Total long-term debt, net of current $ 629,622 $ 490,160

Asset Retirement Obligations 37

Asset Retirement Obligations (ARO) (Tables)	12 Months Ended
	Dec. 31, 2016
Asset Retirement Obligation Disclosure [Abstract]
Reconciliation of Beginning and Ending Aggregate Carrying Amount of Asset Retirement 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) 2016 2015 Balance at beginning of period $ 24,345 $ 22,245 Accretion expense 1,650 1,521 Settlements of liabilities (174 ) — Liabilities incurred 379 579 Balance at end of period $ 26,200 $ 24,345

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Summary of Effective Income Tax Rates	The components of income from continuing operations before income taxes for each of the three years ended December 31, 2016 and income tax expense (benefit) attributable thereto were as follows: Years Ended December 31, (Thousands of dollars) 2016 2015 2014 Income (loss) from continuing operations before income taxes $ 352,031 $ 218,289 $ 339,346 Income tax expense (benefit) Federal - Current $ 74,932 58,039 119,338 Federal - Deferred 38,807 15,853 (382 ) State - Current and deferred 16,800 6,806 (2,570 ) Total $ 130,539 $ 80,698 $ 116,386
Schedule of Reconciliation of Income Taxes to Statutory Rate	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) 2016 2015 2014 Income tax expense based on the U.S. statutory tax rate $ 123,211 $ 76,401 $ 118,771 State income taxes, net of federal benefit 11,438 4,424 (1,671 ) Other, net (4,110 ) (127 ) (714 ) Total $ 130,539 $ 80,698 $ 116,386
Summary of Deferred Tax Assets and Deferred Tax Liabilities	An analysis of the Company’s deferred tax assets and deferred tax liabilities at December 31, 2016 and 2015 showing the tax effects of significant temporary differences is as follows: December 31, (Thousands of dollars) 2016 2015 Deferred tax assets Property costs and asset retirement obligations $ 4,059 $ 2,666 Employee benefits 10,742 9,647 Other deferred tax assets 7,623 7,297 Total gross deferred tax assets 22,424 19,610 Less valuation allowance — — Net deferred tax assets 22,424 19,610 Deferred tax liabilities Accumulated depreciation and amortization (197,727 ) (157,322 ) State deferred taxes (18,643 ) (17,042 ) Other deferred tax liabilities (10,710 ) (8,211 ) Total gross deferred tax liabilities (227,080 ) (182,575 ) Net deferred tax liabilities $ (204,656 ) $ (162,965 )
Reconciliation of Beginning and Ending Liability for Uncertain Tax Positions	A reconciliation of the beginning and ending amount of the consolidated liability for unrecognized income tax benefits during the year ended December 31, 2016 and 2015 is shown in the following table. Year Ended December 31, (Thousands of dollars) 2016 2015 Balance at January 1 $ 5,450 $ 6,101 Additions for tax positions related to prior years 3,771 222 Additions for tax positions related to current year — — Settlements with taxing authorities — — Expiration of statutes of limitation (1,347 ) (873 ) Balance at December 31 $ 7,874 $ 5,450

Incentive Plans (Tables)

Incentive Plans (Tables)	12 Months Ended
	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Summary of Amounts Recognized in Financial Statements with Respect to Share-Based Plans	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. December 31, (Thousands of dollars) 2016 2015 2014 Compensation charged against income before income tax benefit $ 9,314 $ 9,015 $ 10,435 Related income tax benefit recognized in income $ 3,259 $ 3,155 $ 3,652
Summary of Changes in Stock Options Outstanding	Changes in options outstanding for Company employees during the period from December 31, 2013 to December 31, 2016 are presented in the following table: Number of Shares Average Exercise Price Outstanding at December 31, 2013 621,149 $ 35.13 Granted 127,400 39.46 Vested and issued (74,766 ) 34.21 Forfeited (13,148 ) 38.36 Outstanding at December 31, 2014 660,635 36.00 Granted at FMV 72,350 70.57 Exercised (236,620 ) 33.80 Forfeited (30,609 ) 40.21 Outstanding at December 31, 2015 465,756 42.22 Granted at FMV 96,500 59.11 Exercised (126,969 ) 34.48 Forfeited (14,350 ) 58.28 Outstanding at December 31, 2016 420,937 $ 47.88 Exercisable at December 31, 2014 88,445 $ 34.54 Exercisable at December 31, 2015 127,077 $ 36.71 Exercisable at December 31, 2016 218,937 $ 38.32
Summary of Additional Stock Option Information	Additional information about stock options outstanding at December 31, 2016 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 60,414 2.9 $ 1,667,576 60,414 2.9 $ 1,667,576 $37.07 to $39.45 2,574 1.1 62,798 2,574 1.1 62,798 $39.46 to $40.25 202,799 3.6 4,369,459 155,949 3.4 3,338,290 $40.26 to $70.57 155,150 5.7 212,872 — 0.0 — 420,937 4.2 $ 6,312,705 218,937 3.2 $ 5,068,664
MUSA 2013 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Summary of Valuation Assumptions	Following are the assumptions used by the Company to value the original awards: Year Ended December 31, 2016 2015 2014 Fair value per option grant $ 16.08 $ 20.18 $ 11.44 Assumptions Dividend yield — — — Expected volatility 26.1 % 29.3 % 31.7 % Risk-free interest rate 1.26 % 1.52 % 1.37 % Expected life 5.7 years 5.0 years 4.6 years
Murphy Oil Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Summary of Valuation Assumptions	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.
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, 2013 347,098 Granted 93,025 Vested and issued (20,680 ) Forfeited (22,428 ) Outstanding at December 31, 2014 397,015 Granted 55,450 Vested and issued (66,116 ) Forfeited (30,049 ) Outstanding at December 31, 2015 356,300 Granted 74,325 Vested and issued (142,392 ) Forfeited (18,888 ) Outstanding at December 31, 2016 269,345
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, 2013 28,413 Granted 22,437 Vested and issued — Forfeited — Outstanding at December 31, 2014 50,850 Granted 12,924 Vested and issued — Forfeited — Outstanding at December 31, 2015 63,774 Granted 19,900 Vested and issued (34,332 ) Forfeited — Outstanding at December 31, 2016 49,342
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 Granted 40,400 Vested and issued — Forfeited (10,006 ) Outstanding at December 31, 2015 102,394 Granted 53,300 Vested and issued — Forfeited (7,954 ) Outstanding at December 31, 2016 147,740

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2016
Earnings Per Share [Abstract]
Reconciliation of Basic and Diluted Earnings Per Share Computations	The following table provides a reconciliation of basic and diluted earnings per share computations for the years ended December 31, 2016 , 2015 and 2014 (in thousands, except per share amounts): Years ended December 31, (Thousands of dollars except per share amounts) 2016 2015 2014 Earnings per common share: Net income per share - basic Income from continuing operations $ 221,492 $ 137,591 $ 222,960 Income from discontinued operations $ — $ 38,749 $ 20,903 Net income attributable to common stockholders $ 221,492 $ 176,340 $ 243,863 Weighted average common shares outstanding (in thousands) 39,269 43,434 46,104 Earnings per share: Continuing operations $ 5.64 $ 3.17 $ 4.84 Discontinued operations $ — $ 0.89 $ 0.45 Total earnings per share $ 5.64 $ 4.06 $ 5.29 Earnings per common share - assuming dilution: Years ended December 31, 2016 2015 2014 Net income per share - diluted Income from continuing operations $ 221,492 $ 137,591 $ 222,960 Income from discontinued operations $ — $ 38,749 $ 20,903 Net income attributable to common stockholders $ 221,492 $ 176,340 $ 243,863 Weighted average common shares outstanding (in thousands) 39,269 43,434 46,104 Common equivalent shares: Dilutive options 377 360 313 Weighted average common shares outstanding - assuming dilution (in thousands) 39,646 43,794 46,417 Earnings per share: Continuing operations $ 5.59 $ 3.14 $ 4.81 Discontinued operations $ — $ 0.88 $ 0.45 Earnings per share - assuming dilution $ 5.59 $ 4.02 $ 5.26

Other Financial Information (Ta

Other Financial Information (Tables)	12 Months Ended
	Dec. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Other Operating Revenues	Other operating revenues in the Consolidated Income Statements includes the following items: (Thousands of dollars) 2016 2015 2014 Renewable Identification Numbers (RINs) sales $ 181,138 $ 117,513 $ 92,916 Other 4,206 3,321 3,193 Total other operating revenue $ 185,344 $ 120,834 $ 96,109
Summary of Changes in Operating Working Capital	(Thousands of dollars) 2016 2015 2014 Accounts receivable $ (47,203 ) $ 2,857 $ 59,519 Inventories 2,143 1,121 750 Prepaid expenses and other current assets 13,705 (27,107 ) 477 Accounts payable and accrued liabilities 83,384 1,043 (53,234 ) Income taxes payable 1,697 (25,599 ) (37,325 ) Current deferred income tax liabilities — 1,099 (6,662 ) Net decrease (increase) in noncash operating working capital $ 53,726 $ (46,586 ) $ (36,475 )

Assets and Liabilities Measur42

Assets and Liabilities Measure at Fair Value (Tables)	12 Months Ended
	Dec. 31, 2016
Fair Value Disclosures [Abstract]
Schedule of Carrying Amounts and Estimated Fair Value of Financial Instruments	The following table presents the carrying amounts and estimated fair values of financial instruments held by the Company at December 31, 2016 and 2015 . 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. December 31, 2016 December 31, 2015 Carrying Carrying (Thousands of dollars) Amount Fair Value Amount Fair Value Financial liabilities Current and long-term debt $ (670,218 ) $ (690,114 ) $ (490,382 ) $ (511,916 )

Business Segments (Tables)

Business Segments (Tables)	12 Months Ended
	Dec. 31, 2016
Segment Reporting [Abstract]
Summary of Information by Business Segment	Segment Information Corporate and Discontinued (Thousands of dollars) Marketing Other Assets Operations Consolidated Year ended December 31, 2016 Segment income (loss) $ 249,790 (28,298 ) — $ 221,492 Revenues from external customers 11,594,311 242 — 11,594,553 Interest income — 578 — 578 Interest expense (53 ) (39,651 ) — (39,704 ) Income tax expense (benefit) 147,217 (16,678 ) — 130,539 Significant noncash charges (credits) Depreciation and amortization 92,242 6,368 — 98,610 Accretion of asset retirement obligations 1,650 — — 1,650 Deferred and noncurrent income taxes (benefits) 51,290 (10,883 ) — 40,407 Additions to property, plant and equipment 239,095 24,761 — 263,856 Total assets at year-end $ 1,858,055 230,685 — $ 2,088,740 Segment Information Corporate and Discontinued (Thousands of dollars) Marketing Other Assets Operations Consolidated Year ended December 31, 2015 Segment income (loss) $ 159,796 (22,205 ) 38,749 $ 176,340 Revenues from external customers 12,699,125 286 — 12,699,411 Interest income — 2,177 — 2,177 Interest expense (20 ) (33,511 ) — (33,531 ) Income tax expense (benefit) 95,657 (14,959 ) — 80,698 Significant noncash charges (credits) Depreciation and amortization 81,349 5,219 — 86,568 Accretion of asset retirement obligations 1,521 — — 1,521 Deferred and noncurrent income taxes (benefits) 42,593 (2,037 ) — 40,556 Additions to property, plant and equipment 202,371 9,477 3,720 215,568 Total assets at year-end $ 1,727,131 159,110 — $ 1,886,241 Year ended December 31, 2014 Segment income (loss) $ 242,434 (19,474 ) 20,903 $ 243,863 Revenues from external customers 16,985,903 111 — 16,986,014 Interest income — 244 — 244 Interest expense — (36,646 ) — (36,646 ) Income tax expense (benefit) 127,657 (11,271 ) — 116,386 Significant noncash charges (credits) Depreciation and amortization 74,906 4,181 — 79,087 Accretion of asset retirement obligations 1,200 — — 1,200 Deferred and noncurrent income taxes (benefits) 368 (4,771 ) — (4,403 ) Additions to property, plant and equipment 131,139 4,200 3,549 138,888 Total assets at year-end $ 1,544,018 348,991 56,328 $ 1,949,337

Guarantor Subsidiaries (Tables)

Guarantor Subsidiaries (Tables)	12 Months Ended
	Dec. 31, 2016
Guarantor Subsidiaries [Abstract]
Consolidating Balance Sheet	CONSOLIDATING BALANCE SHEET (Thousands of dollars) December 31, 2016 Assets Parent Company Issuer Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Current assets Cash and cash equivalents $ — $ 153,813 $ — $ — $ — $ 153,813 Accounts receivable—trade, less allowance for doubtful accounts of $1,891 in 2016 — 183,519 — — — 183,519 Inventories, at lower of cost or market — 153,351 — — — 153,351 Prepaid expenses and other current assets — 24,871 — — — 24,871 Total current assets — 515,554 — — — 515,554 Property, plant and equipment, at cost less accumulated depreciation and amortization of $780,426 in 2016 — 1,532,655 — — — 1,532,655 Restricted cash — — — — — — Investments in subsidiaries 1,978,110 144,917 — — (2,123,027 ) — Other assets — 40,531 — — — 40,531 Total assets $ 1,978,110 $ 2,233,657 $ — $ — $ (2,123,027 ) $ 2,088,740 Liabilities and Stockholders' Equity Current liabilities Current maturities of long-term debt $ — $ 40,596 $ — $ — $ — $ 40,596 Inter-company accounts payable 623,316 (416,914 ) (52,064 ) (154,338 ) — — Trade accounts payable and accrued liabilities — 473,370 — — — 473,370 Income taxes payable — 591 3 — — 594 Deferred income taxes — — — — — — Total current liabilities 623,316 97,643 (52,061 ) (154,338 ) — 514,560 Long-term debt, including capitalized lease obligations — 629,622 — — — 629,622 Deferred income taxes — 204,656 — — — 204,656 Asset retirement obligations — 26,200 — — — 26,200 Deferred credits and other liabilities — 16,626 — — — 16,626 Total liabilities 623,316 974,747 (52,061 ) (154,338 ) — 1,391,664 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, 2016) 468 1 60 — (61 ) 468 Treasury stock (9,831,196 shares held at December 31, 2016) (608,001 ) — — — — (608,001 ) Additional paid in capital (APIC) 1,213,056 571,117 52,004 87,543 (1,368,382 ) 555,338 Retained earnings 749,271 687,792 (3 ) 66,795 (754,584 ) 749,271 Total stockholders' equity 1,354,794 1,258,910 52,061 154,338 (2,123,027 ) 697,076 Total liabilities and stockholders' equity $ 1,978,110 $ 2,233,657 $ — $ — $ (2,123,027 ) $ 2,088,740 CONSOLIDATING BALANCE SHEET (Thousands of dollars) December 31, 2015 Assets Parent Company Issuer Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Current assets Cash and cash equivalents $ — $ 102,335 $ — $ — $ — $ 102,335 Accounts receivable—trade, less allowance for doubtful accounts of $1,963 in 2015 — 136,253 — — — 136,253 Inventories, at lower of cost or market — 155,906 — — — 155,906 Prepaid expenses and other current assets — 41,173 — — — 41,173 Total current assets — 435,667 — — — 435,667 Property, plant and equipment, at cost less accumulated depreciation and amortization of $724,486 in 2015 — 1,369,318 — — — 1,369,318 Investments in subsidiaries 1,756,617 144,921 — — (1,901,538 ) — Restricted cash — 68,571 — — — 68,571 Other assets — 12,685 — — — 12,685 Total assets $ 1,756,617 $ 2,031,162 $ — $ — $ (1,901,538 ) $ 1,886,241 Liabilities and Stockholders' Equity Current liabilities Current maturities of long-term debt $ — $ 222 $ — $ — $ — $ 222 Inter-company accounts payable 300,044 (93,644 ) (52,062 ) (154,338 ) — — Trade accounts payable and accrued liabilities — 390,341 — — — 390,341 Income taxes payable — — — — — — Deferred income taxes — 1,729 — — — 1,729 Total current liabilities 300,044 298,648 (52,062 ) (154,338 ) — 392,292 Long-term debt, including capitalized lease obligations — 490,160 — — — 490,160 Deferred income taxes — 161,236 — — — 161,236 Asset retirement obligations — 24,345 — — — 24,345 Deferred credits and other liabilities — 25,918 — — — 25,918 Total liabilities 300,044 1,000,307 (52,062 ) (154,338 ) — 1,093,951 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, 2015) 468 1 60 — (61 ) 468 Treasury stock (5,088,434 shares held at December 31, 2015) (294,139 ) — — — — (294,139 ) Additional paid in capital (APIC) 1,222,465 564,554 52,004 87,543 (1,368,384 ) 558,182 Retained earnings 527,779 466,300 (2 ) 66,795 (533,093 ) 527,779 Total stockholders' equity 1,456,573 1,030,855 52,062 154,338 (1,901,538 ) 792,290 Total liabilities and stockholders' equity $ 1,756,617 $ 2,031,162 $ — $ — $ (1,901,538 ) $ 1,886,241
Consolidating Income Statement	CONSOLIDATING INCOME STATEMENT (Thousands of dollars) Year ended December 31, 2016 Revenues Parent Company Issuer Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Petroleum product sales $ — $ 9,070,623 $ — $ — $ — $ 9,070,623 Merchandise sales — 2,338,586 — — — 2,338,586 Other operating revenues — 185,344 — — — 185,344 Total revenues — 11,594,553 — — — 11,594,553 Costs and operating expenses Petroleum product cost of goods sold — 8,603,953 — — — 8,603,953 Merchandise cost of goods sold — 1,974,486 — — — 1,974,486 Station and other operating expenses — 493,320 — — — 493,320 Depreciation and amortization — 98,610 — — — 98,610 Selling, general and administrative — 122,668 1 — — 122,669 Accretion of asset retirement obligations — 1,650 — — — 1,650 Total costs and operating expenses — 11,294,687 1 — — 11,294,688 Income (loss) from operations — 299,866 (1 ) — — 299,865 Other income (expense) Interest income — 578 — — — 578 Interest expense — (39,704 ) — — — (39,704 ) Gain on sale of assets — 88,212 — — — 88,212 Other nonoperating income — 3,080 — — — 3,080 Total other income (expense) — 52,166 — — — 52,166 Income (loss) from continuing operations before income taxes — 352,032 (1 ) — — 352,031 Income tax expense — 130,539 — — — 130,539 Income (loss) from continuing operations — 221,493 (1 ) — — 221,492 Income from discontinued operations, net of income taxes — — — — — — Equity earnings in affiliates, net of tax 221,492 (1 ) — — (221,491 ) — Net Income (Loss) $ 221,492 $ 221,492 $ (1 ) $ — $ (221,491 ) $ 221,492 CONSOLIDATING INCOME STATEMENT (Thousands of dollars) Year ended December 31, 2015 Revenues Parent Company Issuer Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Petroleum product sales $ — $ 10,424,855 $ — $ — $ (120,166 ) $ 10,304,689 Merchandise sales — 2,273,888 — — — 2,273,888 Other operating revenues — 120,834 — — — 120,834 Total revenues — 12,819,577 — — (120,166 ) 12,699,411 Costs and operating expenses Petroleum product cost of goods sold — 9,914,641 — — (120,166 ) 9,794,475 Merchandise cost of goods sold — 1,946,423 — — — 1,946,423 Station and other operating expenses — 486,383 — — — 486,383 Depreciation and amortization — 86,568 — — — 86,568 Selling, general and administrative — 129,276 1 — — 129,277 Accretion of asset retirement obligations — 1,521 — — — 1,521 Total costs and operating expenses — 12,564,812 1 — (120,166 ) 12,444,647 Income (loss) from operations — 254,765 (1 ) — — 254,764 Other income (expense) Interest income — 2,177 — — — 2,177 Interest expense — (33,531 ) — — — (33,531 ) Loss on sale of assets — (4,658 ) — — — (4,658 ) Other nonoperating expense — (463 ) — — — (463 ) Total other income (expense) — (36,475 ) — — — (36,475 ) Income (loss) from continuing operations before income taxes — 218,290 (1 ) — — 218,289 Income tax expense — 80,698 — — — 80,698 Income (loss) from continuing operations — 137,592 (1 ) — — 137,591 Income from discontinued operations, net of income taxes — — — 38,749 — 38,749 Equity earnings in affiliates, net of tax 176,340 (22,731 ) — (61,479 ) (92,130 ) — Net Income (Loss) $ 176,340 $ 114,861 $ (1 ) $ (22,730 ) $ (92,130 ) $ 176,340 CONSOLIDATING INCOME STATEMENT (Thousands of dollars) Year ended December 31, 2014 Revenues Parent Company Issuer Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Petroleum product sales $ — $ 14,911,658 $ — $ — $ (183,131 ) $ 14,728,527 Merchandise sales — 2,161,378 — — — 2,161,378 Other operating revenues — 96,109 — — — 96,109 Total revenues — 17,169,145 — — (183,131 ) 16,986,014 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 Station and other operating expenses — 486,762 — — — 486,762 Depreciation and amortization — 79,087 — — — 79,087 Selling, general and administrative — 119,265 1 — — 119,266 Accretion of asset retirement obligations — 1,200 — — — 1,200 Total costs and operating expenses — 16,803,756 1 — (183,131 ) 16,620,626 Income (loss) from operations — 365,389 (1 ) — — 365,388 Other income (expense) Interest income — 244 — — — 244 Interest expense — (36,646 ) — — — (36,646 ) Gain on sale of assets — 194 — — — 194 Other nonoperating income — 10,166 — — — 10,166 Total other income (expense) — (26,042 ) — — — (26,042 ) Income (loss) from continuing operations before income taxes — 339,347 (1 ) — — 339,346 Income tax expense — 116,386 — — — 116,386 Income (loss) from continuing operations — 222,961 (1 ) — — 222,960 Income from discontinued operations, net of income taxes — — — 20,903 — 20,903 Equity earnings in affiliates, net of tax 351,439 89,524 — — (440,963 ) — Net Income (Loss) $ 351,439 $ 312,485 $ (1 ) $ 20,903 $ (440,963 ) $ 243,863
Consolidating Statement of Cash Flow	CONSOLIDATING STATEMENT OF CASH FLOWS (Thousands of dollars) Year ended December 31, 2016 Operating Activities Parent Company Issuer Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Net income (loss) $ 221,492 $ 221,492 $ (1 ) $ — $ (221,491 ) $ 221,492 Adjustments to reconcile net income (loss) to net cash provided by operating activities Income from discontinued operations, net of tax — — — — — — Depreciation and amortization — 98,610 — — — 98,610 Deferred and noncurrent income tax charges (credits) — 40,407 — — — 40,407 Accretion of asset retirement obligations — 1,650 — — — 1,650 Pretax gains from sale of assets — (88,212 ) — — — (88,212 ) Net decrease (increase) in noncash operating working capital — 53,726 — — — 53,726 Equity in earnings (221,492 ) 1 — — 221,491 — Other operating activities - net — 9,767 — — — 9,767 Net cash provided by (used in) continuing operations — 337,441 (1 ) — — 337,440 Net cash used in discontinued operations — — — — — — Net cash provided by (used in) operating activities — 337,441 (1 ) — — 337,440 Investing Activities Property additions — (262,144 ) — — — (262,144 ) Proceeds from sale of assets — 85,327 — — — 85,327 Changes in restricted cash — 68,571 — — — 68,571 Other investing activities - net — (28,963 ) — — — (28,963 ) Sales proceeds — — — — — — Other — 2,355 — — — 2,355 Net cash provided by (required by) investing activities — (134,854 ) — — — (134,854 ) Financing Activities Purchase of treasury stock (323,272 ) — — — — (323,272 ) Repayments of long-term debt — (20,438 ) — — — (20,438 ) Additions to long-term debt — 200,000 — — — 200,000 Debt issuance costs — (3,240 ) — — — (3,240 ) Amounts related to share-based compensation — (4,158 ) — — — (4,158 ) Net distributions to parent 323,272 (323,273 ) 1 — — — Net cash provided by (required by) financing activities — (151,109 ) 1 — — (151,108 ) Net change in cash and cash equivalents — 51,478 — — — 51,478 Cash and cash equivalents at January 1 — 102,335 — — — 102,335 Cash and cash equivalents at December 31 $ — $ 153,813 $ — $ — $ — $ 153,813 Less: Cash and cash equivalents held for sale — — — — — — Cash and cash equivalents of continuing operations at December 31 $ — $ 153,813 $ — $ — $ — $ 153,813 CONSOLIDATING STATEMENT OF CASH FLOWS (Thousands of dollars) Year ended December 31, 2015 Operating Activities Parent Company Issuer Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Net income (loss) $ 176,340 $ 114,861 $ (1 ) $ (22,730 ) $ (92,130 ) $ 176,340 Adjustments to reconcile net income (loss) to net cash provided by operating activities Income from discontinued operations, net of tax — — — (38,749 ) — (38,749 ) Depreciation and amortization — 86,568 — — — 86,568 Deferred and noncurrent income tax charges (credits) — 40,556 — — — 40,556 Accretion of asset retirement obligations — 1,521 — — — 1,521 Pretax losses from sale of assets — 4,658 — — — 4,658 Net decrease (increase) in noncash operating working capital — (46,586 ) — — — (46,586 ) Equity in earnings (176,340 ) 22,731 — 61,479 92,130 — Other operating activities - net — 9,417 — — — 9,417 Net cash provided by (used in) continuing operations — 233,726 (1 ) — — 233,725 Net cash provided by discontinued operations — — — (17,887 ) — (17,887 ) Net cash provided by (used in) operating activities — 233,726 (1 ) (17,887 ) — 215,838 Investing Activities Property additions — (205,225 ) — — — (205,225 ) Proceeds from sale of assets — 729 — — — 729 Changes in restricted cash — (68,571 ) — — — (68,571 ) Other investing activities - net — (2,889 ) — — — (2,889 ) Sales proceeds — — — 93,765 — 93,765 Other — — — (7,443 ) — (7,443 ) Net cash provided by (required by) investing activities — (275,956 ) — 86,322 — (189,634 ) Financing Activities Purchase of treasury stock (248,695 ) — — — — (248,695 ) Repayments of long-term debt — (146 ) — — — (146 ) Additions to long-term debt — — — — — — Debt issuance costs — (58 ) — — — (58 ) Amounts related to share-based compensation — (3,075 ) — — — (3,075 ) Net distributions to parent 248,695 (179,319 ) 1 (69,377 ) — — Net cash provided by (required by) financing activities — (182,598 ) 1 (69,377 ) — (251,974 ) Net change in cash and cash equivalents — (224,828 ) — (942 ) — (225,770 ) Cash and cash equivalents at January 1 — 327,163 — 942 — 328,105 Cash and cash equivalents at December 31 $ — $ 102,335 $ — $ — $ — $ 102,335 Less: Cash and cash equivalents held for sale — — — — — — Cash and cash equivalents of continuing operations at December 31 $ — $ 102,335 $ — $ — $ — $ 102,335 CONSOLIDATING STATEMENT OF CASH FLOWS W (Thousands of dollars) Year ended December 31, 2014 Operating Activities Parent Company Issuer Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Net income (loss) $ 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 — — — (20,903 ) — (20,903 ) Depreciation and amortization — 79,087 — — — 79,087 Deferred and noncurrent income tax charges (credits) — (4,403 ) — — — (4,403 ) Accretion of asset retirement obligations — 1,200 — — — 1,200 Pretax gains from sale of assets — (194 ) — — — (194 ) Net decrease (increase) in noncash operating working capital — (36,475 ) — — — (36,475 ) Equity in earnings (351,439 ) (89,524 ) — — 440,963 — Other operating activities - net — 14,531 — — — 14,531 Net cash provided by (used in) continuing operations — 276,707 (1 ) — — 276,706 Net cash provided by discontinued operations — — — 28,876 — 28,876 Net cash provided by (used in) operating activities — 276,707 (1 ) 28,876 — 305,582 Investing Activities Property additions — (135,339 ) — — — (135,339 ) Proceeds from sale of assets — 376 — — — 376 Other investing activities - net — (10,631 ) — — — (10,631 ) Sales proceeds — — — 1,097 — 1,097 Other — — — (4,918 ) — (4,918 ) Net cash provided by (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 — — — — — — 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 change 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 Less: Cash and cash equivalents held for sale — — — 942 — 942 Cash and cash equivalents of continuing operations at December 31 $ — $ 327,163 $ — $ — $ — $ 327,163
Consolidating Statement of Changes in Equity	CONSOLIDATING STATEMENT OF CHANGES IN EQUITY (Thousands of dollars) Year ended December 31, 2016 Statement of Stockholders' Equity Parent Company Issuer Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Common Stock Balance as of December 31, 2015 $ 468 $ 1 $ 60 $ — $ (61 ) $ 468 Issuance of common stock — — — — — — Balance as of December 31, 2016 $ 468 $ 1 $ 60 $ — $ (61 ) $ 468 Treasury Stock Balance as of December 31, 2015 $ (294,139 ) $ — $ — $ — $ — $ (294,139 ) Issuance of common stock 9,410 — — — — 9,410 Repurchase of common stock (323,272 ) — — — — (323,272 ) Balance as of December 31, 2016 $ (608,001 ) $ — $ — $ — $ — $ (608,001 ) APIC Balance as of December 31, 2015 $ 1,222,466 $ 564,551 $ 52,004 $ 87,543 $ (1,368,382 ) $ 558,182 Issuance of common stock (9,410 ) — — — — (9,410 ) Amounts related to share-based compensation — (2,748 ) — — — (2,748 ) Share-based compensation expense — 9,314 — — — 9,314 Balance as of December 31, 2016 $ 1,213,056 $ 571,117 $ 52,004 $ 87,543 $ (1,368,382 ) $ 555,338 Retained Earnings Balance as of December 31, 2015 $ 527,779 $ 466,300 $ (2 ) $ 66,795 $ (533,093 ) $ 527,779 Net income 221,492 221,492 (1 ) — (221,491 ) 221,492 Balance as of December 31, 2016 $ 749,271 $ 687,792 $ (3 ) $ 66,795 $ (754,584 ) $ 749,271 CONSOLIDATING STATEMENTS OF CHANGES IN EQUITY (Thousands of dollars) Year ended December 31, 2015 Statement of Stockholders' Equity Parent Company Issuer Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Common Stock Balance as of December 31, 2014 $ 468 $ 1 $ 60 $ — $ (61 ) $ 468 Issuance of common stock — — — — — — Balance as of December 31, 2015 $ 468 $ 1 $ 60 $ — $ (61 ) $ 468 Treasury Stock Balance as of December 31, 2014 $ (51,073 ) $ — $ — $ — $ — $ (51,073 ) Issuance of common stock 5,629 — — — — 5,629 Repurchase of common stock (248,695 ) — — — — (248,695 ) Balance as of December 31, 2015 $ (294,139 ) $ — $ — $ — $ — $ (294,139 ) APIC Balance as of December 31, 2014 $ 1,228,095 $ 558,611 $ 52,004 $ 35,677 $ (1,316,516 ) $ 557,871 Issuance of common stock (5,629 ) — — — — (5,629 ) Amounts related to share-based compensation — (3,075 ) — — — (3,075 ) Reclassification of equity — — — 51,866 (51,866 ) — Share-based compensation expense — 9,015 — — — 9,015 Balance as of December 31, 2015 $ 1,222,466 $ 564,551 $ 52,004 $ 87,543 $ (1,368,382 ) $ 558,182 Retained Earnings Balance as of December 31, 2014 $ 351,439 $ 351,439 $ (1 ) $ 89,525 $ (440,963 ) $ 351,439 Net income 176,340 114,861 (1 ) (22,730 ) (92,130 ) 176,340 Balance as of December 31, 2015 $ 527,779 $ 466,300 $ (2 ) $ 66,795 $ (533,093 ) $ 527,779 CONSOLIDATED STATEMENTS 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 Consolidated 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 ) Amounts related to share-based compensation — (582 ) — — — (582 ) 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 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

Supplemental Quarterly Inform45

Supplemental Quarterly Information (Tables)	12 Months Ended
	Dec. 31, 2016
Quarterly Financial Information Disclosure [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, 2016 Sales and other operating revenues $ 2,490.3 $ 3,005.8 $ 3,042.7 $ 3,055.8 $ 11,594.6 Income from continuing operations before income taxes $ 139.3 $ 74.1 $ 71.8 $ 66.8 $ 352.0 Income from continuing operations $ 85.9 $ 46.3 $ 45.5 $ 43.8 $ 221.5 Net income $ 85.9 $ 46.3 $ 45.5 $ 43.8 $ 221.5 Income from continuing operations (per Common share) Basic $ 2.10 $ 1.18 $ 1.17 $ 1.16 $ 5.64 Diluted $ 2.08 $ 1.17 $ 1.16 $ 1.14 $ 5.59 Net income (per Common share) Basic $ 2.10 $ 1.18 $ 1.17 $ 1.16 $ 5.64 Diluted $ 2.08 $ 1.17 $ 1.16 $ 1.14 $ 5.59 Market price of Common stock 1 High $ 67.18 $ 74.16 $ 79.29 $ 72.56 $ 79.29 Low $ 54.24 $ 57.42 $ 70.08 $ 57.80 $ 54.24 Year Ended December 31, 2015 Sales and other operating revenues $ 2,920.7 $ 3,468.0 $ 3,382.5 $ 2,928.2 $ 12,699.4 Income from continuing operations before income taxes $ 40.9 $ 38.8 $ 94.1 $ 44.5 $ 218.3 Income from continuing operations $ 23.6 $ 24.8 $ 60.0 $ 29.2 $ 137.6 Net income $ 22.9 $ 26.2 $ 60.5 $ 66.7 $ 176.3 Income from continuing operations (per Common share) Basic $ 0.52 $ 0.56 $ 1.41 $ 0.70 $ 3.17 Diluted $ 0.51 $ 0.56 $ 1.40 $ 0.69 $ 3.14 Net income (per Common share) Basic $ 0.50 $ 0.59 $ 1.42 $ 1.60 $ 4.06 Diluted $ 0.50 $ 0.59 $ 1.41 $ 1.58 $ 4.02 Market price of Common stock 1 High $ 73.48 $ 73.47 $ 57.40 $ 65.09 $ 73.48 Low $ 66.82 $ 55.82 $ 48.70 $ 54.17 $ 48.70 1 Prices as quoted on the New York Stock Exchange.

Description of Business and B46

Description of Business and Basis of Presentation (Details)	Aug. 31, 2013	Aug. 30, 2013	Mar. 31, 2013USD ($)$ / sharesshares	Dec. 31, 2016statestore$ / shares	Dec. 31, 2015$ / shares
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Percentage of shares of stock distributed		100.00%
Stock conversion ratio		0.25
Ownership interest after transaction (percent)	0.00%
Number of states in which entity operates | state				26
Number of stations | store				1,401
Common stock shares issued (in shares) | shares			100
Common stock par value (in dollars per share) | $ / shares			$ 0.01	$ 0.01	$ 0.01
Proceeds from issuance of common stock | $			$ 1

Significant Accounting Polici47

Significant Accounting Policies (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Accounting Policies [Abstract]
Excise taxes	$ 1,961,478	$ 1,968,629	$ 1,930,608
LKE transaction, required term to facilitate forward agreement before proceeds are reclassified as available cash (in days)	180 days
Proceeds with an intermediary	$ 0	$ 68,571
Property, Plant and Equipment [Line Items]
Interest costs capitalized	$ 300
Pipeline and terminal facilities [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Depreciable life (in years)	16 years
Pipeline and terminal facilities [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Depreciable life (in years)	25 years
Marketing Facilities [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Depreciable life (in years)	3 years
Marketing Facilities [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Depreciable life (in years)	50 years
Nonqualified Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)	3 years
Restricted Stock And Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)	3 years

Discontinued Operations (Narrat

Discontinued Operations (Narrative) (Details) - USD ($) $ in Thousands	Dec. 19, 2013	Jan. 31, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales proceeds			$ 0	$ 93,765	$ 1,097
Discontinued Operations, Disposed of by Sale [Member] | Hankinson Renewable Energy, LLC [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales proceeds	$ 170,000
Working capital adjustments	$ 3,100	$ 1,100
After-tax gain (loss) from disposal of refineries					$ 800	$ 52,500

Discontinued Operations (Result

Discontinued Operations (Results of Operations of Hankinson) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Income (loss) from discontinued operations	$ 0	$ 38,749	$ 20,903
Discontinued Operations, Disposed of by Sale [Member] | Hankinson Renewable Energy, LLC [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Revenues			0
Income (loss) from operations before income taxes			0
Gain on sale before income taxes			1,202
Total income (loss) from discontinued operations before taxes			1,202
Provision for income taxes			421
Income (loss) from discontinued operations			$ 781

Discontinued Operations (Summar

Discontinued Operations (Summary of Results of Operations of Hereford) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Income (loss) from discontinued operations	$ 0	$ 38,749	$ 20,903
Discontinued Operations, Disposed of by Sale [Member] | Hereford Production Facility [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Ethanol sales		154,502	223,904
Total revenues		154,502	223,904
Ethanol cost of goods sold		121,753	158,276
Station and other operating expenses		27,881	34,763
Depreciation and amortization		333	147
Selling, general and administrative expenses		1,382	1,635
Total costs and operating expenses		151,349	194,821
Income from operations		3,153	29,083
Gain (loss) on sale of assets		60,782	0
Other nonoperating income (expense)		0	994
Total other income (expense)		60,782	994
Total income (loss) from discontinued operations before taxes		63,935	30,077
Income taxes		25,186	9,955
Income (loss) from discontinued operations		$ 38,749	$ 20,122

Discontinued Operations (Cash F

Discontinued Operations (Cash Flow Information) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Net Cash Provided by (Used in) Discontinued Operations [Abstract]
Net cash provided by (used in) discontinued operating activities	$ 0	$ (17,887)	$ 28,876
Discontinued Operations, Disposed of by Sale [Member] | Hereford Production Facility [Member]
Net Cash Provided by (Used in) Discontinued Operations [Abstract]
Net cash provided by (used in) discontinued operating activities		(17,887)	28,741
Net cash provided by (used in) discontinued investing activities		$ 86,322	$ (4,918)

Change in Accounting Principl52

Change in Accounting Principle (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other assets	$ 40,531	$ 12,685
Long-term debt	$ 629,622	490,160
Previous Accounting Method [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other assets		16,211
Long-term debt		493,686
Effect of Change in Accounting Principle [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other assets		(3,526)
Long-term debt		$ (3,526)

Inventories (Summary Of Invento

Inventories (Summary Of Inventory) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Inventory Disclosure [Abstract]
Finished products - FIFO basis	$ 207,903	$ 159,774
Less LIFO reserve - finished products	(153,319)	(102,849)
Finished products - LIFO basis	54,584	56,925
Store merchandise for resale	95,649	94,925
Materials and supplies	3,118	4,056
Total inventories	$ 153,351	$ 155,906

Inventories (Narrative) (Detail

Inventories (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2016	Dec. 31, 2015
Inventory Disclosure [Abstract]
Excess of LIFO replacement cost over carrying value		$ 153.3	$ 102.8
Increase (decrease) of Income due to LIFO impact	$ 19.5

Property, Plant and Equipment55

Property, Plant and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Cost	$ 2,313,081	$ 2,093,804
Net	1,532,655	1,369,318
Land [Member]
Property, Plant and Equipment [Line Items]
Cost	577,743	555,198
Net	577,743	555,198
Pipeline and terminal facilities [Member]
Property, Plant and Equipment [Line Items]
Cost	67,946	95,244
Net	41,218	40,846
Retail gasoline stations [Member]
Property, Plant and Equipment [Line Items]
Cost	1,565,275	1,367,176
Net	867,165	746,747
Buildings [Member]
Property, Plant and Equipment [Line Items]
Cost	33,375	19,441
Net	22,310	8,985
Other [Member]
Property, Plant and Equipment [Line Items]
Cost	68,742	56,745
Net	$ 24,219	$ 17,542
Minimum [Member] | Pipeline and terminal facilities [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	16 years
Minimum [Member] | Retail gasoline stations [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	3 years
Minimum [Member] | Buildings [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	20 years
Minimum [Member] | Other [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	3 years
Maximum [Member] | Pipeline and terminal facilities [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	25 years
Maximum [Member] | Retail gasoline stations [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	50 years
Maximum [Member] | Buildings [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	45 years
Maximum [Member] | Other [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	20 years

Accounts Payable And Accrued 56

Accounts Payable And Accrued Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Payables and Accruals [Abstract]
Trade accounts payable	$ 309,988	$ 226,769
Excise taxes/withholdings payable	76,552	75,704
Accrued insurance obligations	21,631	23,347
Accrued taxes other than income	26,740	26,626
Other	38,459	37,895
Accounts payable and accrued liabilities	$ 473,370	$ 390,341

Long-Term Debt (Summary of Long

Long-Term Debt (Summary of Long-Term Debt) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Aug. 14, 2013
Debt Instrument [Line Items]
Capitalized lease obligations, vehicles, due through 2020	$ 1,451,000	$ 600,000
Unamortized debt issuance costs	(5,407,000)	(3,526,000)
Total long-term debt	670,218,000	490,382,000
Less current maturities	40,596,000	222,000
Long-term debt	629,622,000	490,160,000
Senior Notes [Member]
Debt Instrument [Line Items]
6.00% senior notes due 2023 (net of unamortized discount of $5,826 at 2016 and $6,692 at 2015)	494,174,000	493,308,000	$ 500,000,000
Interest rate (percent)			6.00%
Senior Notes [Member] | 6% Senior Notes Due 2023 [Member]
Debt Instrument [Line Items]
Unamortized Discount	$ 5,826,000	$ 6,692,000
Interest rate (percent)	6.00%	6.00%
Term Facility [Member]
Debt Instrument [Line Items]
Draw down from line of credit	$ 200,000,000
Term Facility [Member] | Secured Debt [Member] | Term Credit Agreement [Member]
Debt Instrument [Line Items]
Term loan due 2020 (effective rate of 3.77% at December 31, 2016)	$ 180,000,000	$ 0
Term loan due 2020 (effective rate of interest)	3.77%

Long-Term Debt (Narrative) (Det

Long-Term Debt (Narrative) (Details)	Mar. 10, 2016USD ($)	Sep. 02, 2014	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Aug. 30, 2013USD ($)	Aug. 14, 2013USD ($)
Debt Instrument [Line Items]
Fixed charge coverage ratio			0.58
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			0.44
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 $100 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, 2016, the Company's ability to make restricted payments was not limited as our availability under the borrowing base was more than $100.0 million while our fixed charge coverage ratio was less than 1.0 to 1.0. At December 31, 2016, the Company had a shortfall of approximately $304.1 million of its net income and retained earnings subject to such restrictions before the fixed charge coverage ratio would exceed 1.0 to 1.0.
Net income and retained earnings free of restrictions, excess (deficit) of			$ (304,100,000)
Minimum [Member]
Debt Instrument [Line Items]
Fixed charge coverage ratio			1
Period for fixed charge coverage ratio threshold (in days)			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
Dividend restriction, fixed charge coverage ratio			1
Maximum [Member]
Debt Instrument [Line Items]
Secured debt to EBITDA ratio			4.5
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			$ 100,000,000
Federal Funds Rate [Member]
Debt Instrument [Line Items]
Spread over variable rate (percent)			0.50%
LIBOR [Member]
Debt Instrument [Line Items]
Spread over variable rate (percent)			1.00%
Interest period one (in months)			1 month
Interest period two (in months)			2 months
Interest period three (in months)			3 months
Interest period four (in months)			6 months
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%
Secured Debt [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity					$ 450,000,000
Debt outstanding			$ 0
Secured Debt [Member] | LIBOR [Member] | Minimum [Member]
Debt Instrument [Line Items]
Spread over variable rate (percent)			1.50%
Secured Debt [Member] | LIBOR [Member] | Maximum [Member]
Debt Instrument [Line Items]
Spread over variable rate (percent)			2.00%
Secured Debt [Member] | Alternative Base Rate [Member] | Minimum [Member]
Debt Instrument [Line Items]
Spread over variable rate (percent)			0.50%
Secured Debt [Member] | Alternative Base Rate [Member] | Maximum [Member]
Debt Instrument [Line Items]
Spread over variable rate (percent)			1.00%
Term Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 200,000,000				150,000,000
Debt Instrument, Periodic Payment, Principal			$ 10,000,000
Debt instrument, principal payment, percentage			5.00%
Term Facility [Member] | LIBOR [Member] | Minimum [Member]
Debt Instrument [Line Items]
Spread over variable rate (percent)			2.50%
Term Facility [Member] | LIBOR [Member] | Maximum [Member]
Debt Instrument [Line Items]
Spread over variable rate (percent)			2.75%
Term Facility [Member] | Alternative Base Rate [Member] | Minimum [Member]
Debt Instrument [Line Items]
Spread over variable rate (percent)			1.50%
Term Facility [Member] | Alternative Base Rate [Member] | Maximum [Member]
Debt Instrument [Line Items]
Spread over variable rate (percent)			1.75%
Incremental Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 150,000,000				$ 200,000,000
Asset Based Loan Facility First Amendment [Member]
Debt Instrument [Line Items]
Maturity date		Sep. 2, 2019
Asset Based Loan Facility Second Amendment [Member]
Debt Instrument [Line Items]
Maturity date	Mar. 10, 2021
Letter Of Credit [Member]
Debt Instrument [Line Items]
Line of credit facility, sublimit			$ 200,000,000
Senior Notes [Member]
Debt Instrument [Line Items]
Interest rate (percent)						6.00%
Senior notes			$ 494,174,000	$ 493,308,000		$ 500,000,000

Asset Retirement Obligations 59

Asset Retirement Obligations (ARO) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Asset Retirement Obligation Roll Forward
Balance at beginning of period	$ 24,345	$ 22,245
Accretion expense	1,650	1,521	$ 1,200
Settlements of liabilities	(174)	0
Liabilities incurred	379	579
Balance at end of period	$ 26,200	$ 24,345	$ 22,245

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 ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Income (loss) from continuing operations before income taxes	$ 66,800	$ 71,800	$ 74,100	$ 139,300	$ 44,500	$ 94,100	$ 38,800	$ 40,900	$ 352,031	$ 218,289	$ 339,346
Federal - Current									74,932	58,039	119,338
Federal - Deferred									38,807	15,853	(382)
State - Current and deferred									16,800	6,806	(2,570)
Total									$ 130,539	$ 80,698	$ 116,386

Income Taxes (Schedule Of Recon

Income Taxes (Schedule Of Reconciliation Of Income Taxes To Statutory Rate) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Income tax expense based on the U.S. statutory tax rate	$ 123,211	$ 76,401	$ 118,771
State income taxes, net of federal benefit	11,438	4,424	(1,671)
Other, net	(4,110)	(127)	(714)
Total	$ 130,539	$ 80,698	$ 116,386

Income Taxes (Summary Of Deferr

Income Taxes (Summary Of Deferred Tax Assets And Deferred Tax Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Deferred tax assets
Property costs and asset retirement obligations	$ 4,059	$ 2,666
Employee benefits	10,742	9,647
Other deferred tax assets	7,623	7,297
Total gross deferred tax assets	22,424	19,610
Less valuation allowance	0	0
Net deferred tax assets	22,424	19,610
Deferred tax liabilities
Accumulated depreciation and amortization	(197,727)	(157,322)
State deferred taxes	(18,643)	(17,042)
Other deferred tax liabilities	(10,710)	(8,211)
Total gross deferred tax liabilities	(227,080)	(182,575)
Net deferred tax liabilities	$ (204,656)	$ (162,965)

Income Taxes (Narrative) (Detai

Income Taxes (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Contingency [Line Items]
Income tax expense, net benefits for interest and penalties	$ 1.5	$ 0.7	$ 1.1
Domestic Tax Authority [Member]
Income Tax Contingency [Line Items]
Earliest year remaining open for audit and/or settlement in major taxing jurisdictions	2,012
State and Local Jurisdiction [Member] | Minimum [Member]
Income Tax Contingency [Line Items]
Earliest year remaining open for audit and/or settlement in major taxing jurisdictions	2,009
State and Local Jurisdiction [Member] | Maximum [Member]
Income Tax Contingency [Line Items]
Earliest year remaining open for audit and/or settlement in major taxing jurisdictions	2,012

Income Taxes (Reconciliation of

Income Taxes (Reconciliation of Beginning and Ending Liability For Uncertain Tax Positions) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at January 1	$ 5,450	$ 6,101
Additions for tax positions related to prior years	3,771	222
Additions for tax positions related to current year	0	0
Settlements with taxing authorities	0	0
Expiration of statutes of limitation	(1,347)	(873)
Balance at December 31	$ 7,874	$ 5,450

Incentive Plans (Narrative) (De

Incentive Plans (Narrative) (Details)	12 Months Ended				40 Months Ended
	Dec. 31, 2016USD ($)plan$ / sharescompanyshares	Dec. 31, 2015USD ($)shares	Dec. 31, 2014USD ($)shares	Dec. 31, 2013$ / shares	Dec. 31, 2016USD ($)plancompanyshares	Feb. 12, 2014shares	Aug. 30, 2013shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of share based compensation plans | plan	2				2
Shares granted (in shares)	96,500	72,350	127,400
Unrecognized compensation cost related to stock option awards | $	$ 13,300,000				$ 13,300,000
Unrecognized compensation cost related to stock option awards, weighted average period for recognition (in years)	2 years 9 days
Total income tax benefits realized from tax deductions related to stock option exercises under share-based payment arrangements | $	$ 1,600,000	$ 3,100,000	$ 500,000
Murphy Oil [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)	2 years
Minimum grant date fair value of options replaced (in dollars per share) | $ / shares				$ 32.53
Maximum grant date fair value of options replaced (in dollars per share) | $ / shares				$ 40.25
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 (in shares)					1,653,061
Shares available for grant (in shares)	3,846,939				3,846,939
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
Award vesting period (in years)	3 years
Shares available for grant (in shares)	416,326				416,326
Restricted stock units issued (in shares)					83,674
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 (in shares)	19,900	12,924	22,437
MUSA 2013 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units issued (in shares)	74,325	55,450	93,025
Option term (in years)	7 years
MUSA 2013 Plan [Member] | Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)	3 years
MUSA 2013 Plan [Member] | Return On Average Capital Employed Performance Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)	3 years
Restricted stock units issued, weighted average grant date fair value (in dollars per share) | $ / shares	$ 59.11
MUSA 2013 Plan [Member] | Total Shareholder Return Performance Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)	3 years
Number of companies in total shareholder return peer comparison group | company	16				16
Restricted stock units issued, weighted average grant date fair value (in dollars per share) | $ / shares	$ 82.94

Incentive Plans (Schedule of Sh

Incentive Plans (Schedule of Share-Based Plan Amounts Recognized) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Compensation charged against income before income tax benefit	$ 9,314	$ 9,015	$ 10,435
Related income tax benefit recognized in income	$ 3,259	$ 3,155	$ 3,652

Incentive Plans (Summary of Val

Incentive Plans (Summary of Valuation Assumptions) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2012	Dec. 31, 2011
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 (in dollars per share)	$ 16.08	$ 20.18	$ 11.44
Dividend yield	0.00%	0.00%	0.00%
Expected volatility	26.10%	29.30%	31.70%
Risk-free interest rate	1.26%	1.52%	1.37%
Expected life (in years)	5 years 8 months	5 years	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 (in dollars per share)				$ 12.37	$ 12.37
Dividend yield				1.80%	1.80%
Expected life (in years)				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 (in dollars per share)				$ 20.34	$ 20.34
Dividend yield				2.27%	2.27%
Expected life (in years)				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) - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Number of Shares (in shares)
Beginning balance (in shares)	465,756	660,635	621,149
Granted at FMV (in shares)	96,500	72,350	127,400
Exercised (in shares)	(126,969)	(236,620)	(74,766)
Forfeited (in shares)	(14,350)	(30,609)	(13,148)
Ending balance (in shares)	420,937	465,756	660,635
Average Exercise Price (in dollars per share)
Beginning balance (in dollars per share)	$ 42.22	$ 36	$ 35.13
Granted at FMV (in dollars per share)	59.11	70.57	39.46
Exercised (in dollars per share)	34.48	33.80	34.21
Forfeited (in dollars per share)	58.28	40.21	38.36
Ending balance (in dollars per share)	$ 47.88	$ 42.22	$ 36
Exercisable (in shares)	218,937	127,077	88,445
Shares exercisable, average exercise price (in dollars per share)	$ 38.32	$ 36.71	$ 34.54

Incentive Plans (Summary of Add

Incentive Plans (Summary of Additional Stock Option Information) (Details)	12 Months Ended
	Dec. 31, 2016USD ($)$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding (in shares) | shares	420,937
Options outstanding, average remaining life (in years)	4 years 2 months 27 days
Options outstanding, aggregate intrinsic value | $	$ 6,312,705
Options exercisable (in shares) | shares	218,937
Options exercisable, average remaining life (in years)	3 years 2 months 16 days
Options exercisable, aggregate intrinsic value | $	$ 5,068,664
$32.53 to $37.06 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Lower range limit of exercise price (in dollars per share) | $ / shares	$ 32.53
Upper range limit of exercise price (in dollars per share) | $ / shares	$ 37.06
Options outstanding (in shares) | shares	60,414
Options outstanding, average remaining life (in years)	2 years 10 months 24 days
Options outstanding, aggregate intrinsic value | $	$ 1,667,576
Options exercisable (in shares) | shares	60,414
Options exercisable, average remaining life (in years)	2 years 10 months 24 days
Options exercisable, aggregate intrinsic value | $	$ 1,667,576
$37.07 to $39.45 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Lower range limit of exercise price (in dollars per share) | $ / shares	$ 37.07
Upper range limit of exercise price (in dollars per share) | $ / shares	$ 39.45
Options outstanding (in shares) | shares	2,574
Options outstanding, average remaining life (in years)	1 year 1 month 2 days
Options outstanding, aggregate intrinsic value | $	$ 62,798
Options exercisable (in shares) | shares	2,574
Options exercisable, average remaining life (in years)	1 year 1 month 2 days
Options exercisable, aggregate intrinsic value | $	$ 62,798
$39.46 to $40.25 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Lower range limit of exercise price (in dollars per share) | $ / shares	$ 39.46
Upper range limit of exercise price (in dollars per share) | $ / shares	$ 40.25
Options outstanding (in shares) | shares	202,799
Options outstanding, average remaining life (in years)	3 years 6 months 22 days
Options outstanding, aggregate intrinsic value | $	$ 4,369,459
Options exercisable (in shares) | shares	155,949
Options exercisable, average remaining life (in years)	3 years 4 months 10 days
Options exercisable, aggregate intrinsic value | $	$ 3,338,290
$40.26 to $70.57 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Lower range limit of exercise price (in dollars per share) | $ / shares	$ 40.26
Upper range limit of exercise price (in dollars per share) | $ / shares	$ 70.57
Options outstanding (in shares) | shares	155,150
Options outstanding, average remaining life (in years)	5 years 8 months 12 days
Options outstanding, aggregate intrinsic value | $	$ 212,872
Options exercisable (in shares) | shares	0
Options exercisable, average remaining life (in years)	0 years
Options exercisable, aggregate intrinsic value | $	$ 0

Incentive Plans (Summary of Res

Incentive Plans (Summary of Restricted Stock Unit Activity) (Details) - shares	12 Months Ended			40 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2016
MUSA 2013 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Beginning balance (in shares)	356,300	397,015	347,098
Granted (in shares)	74,325	55,450	93,025
Vested and issued (in shares)	(142,392)	(66,116)	(20,680)
Forfeited (in shares)	(18,888)	(30,049)	(22,428)
Ending balance (in shares)	269,345	356,300	397,015	269,345
MUSA 2013 Plan [Member] | Performance Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Beginning balance (in shares)	102,394	72,000	0
Granted (in shares)	53,300	40,400	78,500
Vested and issued (in shares)	0	0	0
Forfeited (in shares)	(7,954)	(10,006)	(6,500)
Ending balance (in shares)	147,740	102,394	72,000	147,740
2013 Stock Plan For Non-Employee Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Granted (in shares)				83,674
2013 Stock Plan For Non-Employee Directors [Member] | Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Beginning balance (in shares)	63,774	50,850	28,413
Granted (in shares)	19,900	12,924	22,437
Vested and issued (in shares)	(34,332)	0	0
Forfeited (in shares)	0	0	0
Ending balance (in shares)	49,342	63,774	50,850	49,342

Employee and Retiree Benefit 71

Employee and Retiree Benefit Plans (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Thrift Plan [Member]
Defined Contribution Plan Disclosure [Line Items]
Company matching contribution (percent)	100.00%
Employee's maximum contribution matched by Company (percent)	6.00%
Profit sharing percentage 1	5.00%
Profit sharing percentage 2	7.00%
Profit sharing percentage 3	9.00%
Profit sharing contributions	$ 10.5	$ 9.2	$ 8.9
Profit Sharing Plan [Member]
Defined Contribution Plan Disclosure [Line Items]
Profit sharing contributions	$ 1.8	$ 1.8	$ 1.8

Financial Instruments and Ris72

Financial Instruments and Risk Management (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Cash deposits related to commodity derivative contracts	$ 1.8	$ 1.6

Earnings Per Share (Narrative)

Earnings Per Share (Narrative) (Details)	Aug. 30, 2013shares	May 31, 2014USD ($)$ / sharesshares	Dec. 31, 2016$ / sharesshares	Dec. 31, 2015$ / sharesshares	Jan. 25, 2016USD ($)capital_program	Oct. 31, 2014USD ($)
Equity, Class of Treasury Stock [Line Items]
Issuance of stock at the separation and distribution (in shares)	46,743,316
Stock repurchase program, shares acquired			9,831,196	5,088,434
May 2014 Share Repurchase Program [Member]
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, approved amount | $		$ 50,000,000
Stock repurchase program, shares acquired		1,040,636
Stock repurchase program, average price per share (in dollars per share) | $ / shares		$ 48.07
Two Hundred Fifty Million Dollar Share Repurchase Program [Member]
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, approved amount | $						$ 250,000,000
Stock repurchase program, shares acquired				4,196,349
Stock repurchase program, average price per share (in dollars per share) | $ / shares				$ 59.58
January 2016 Share Repurchase Program [Member]
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, average price per share (in dollars per share) | $ / shares			$ 65.93
Stock repurchase program, authorized amount | $					$ 500,000,000
Stock repurchase program, number of capital programs | capital_program					2
Shares acquired (in shares)			4,903,198

Earnings Per Share (Reconciliat

Earnings Per Share (Reconciliation of Basic and Diluted Earnings Per Share Computations) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Earnings Per Share [Abstract]
Income from continuing operations	$ 43,800	$ 45,500	$ 46,300	$ 85,900	$ 29,200	$ 60,000	$ 24,800	$ 23,600	$ 221,492	$ 137,591	$ 222,960
Income from discontinued operations, net of income taxes									0	38,749	20,903
Net Income	$ 43,800	$ 45,500	$ 46,300	$ 85,900	$ 66,700	$ 60,500	$ 26,200	$ 22,900	$ 221,492	$ 176,340	$ 243,863
Earnings per share - basic:
Income from continuing operations (in dollars per share)	$ 1.16	$ 1.17	$ 1.18	$ 2.10	$ 0.70	$ 1.41	$ 0.56	$ 0.52	$ 5.64	$ 3.17	$ 4.84
Income from discontinued operations (in dollars per share)									0	0.89	0.45
Net income - basic (in dollars per share)	1.16	1.17	1.18	2.10	1.60	1.42	0.59	0.50	$ 5.64	$ 4.06	$ 5.29
Weighted-average shares outstanding (in thousands):
Weighted average common shares outstanding (in shares)									39,269	43,434	46,104
Dilutive options (in shares)									377	360	313
Weighted average common shares outstanding - assuming dilution (in shares)									39,646	43,794	46,417
Earnings per share - diluted:
Income from continuing operations (in dollars per share)	1.14	1.16	1.17	2.08	0.69	1.40	0.56	0.51	$ 5.59	$ 3.14	$ 4.81
Income from discontinued operations (in dollars per share)									0	0.88	0.45
Net income - diluted (in dollars per share)	$ 1.14	$ 1.16	$ 1.17	$ 2.08	$ 1.58	$ 1.41	$ 0.59	$ 0.50	$ 5.59	$ 4.02	$ 5.26

Other Financial Information (Sc

Other Financial Information (Schedule Of Renewable Identification Numbers (RINs) and Other Revenue) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Renewable Identification Numbers (RINs) sales	$ 181,138	$ 117,513	$ 92,916
Other	4,206	3,321	3,193
Total other operating revenue	$ 185,344	$ 120,834	$ 96,109

Other Financial Information (Na

Other Financial Information (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Income Taxes Paid, Net	$ 70.8	$ 113.5	$ 158.1
Interest paid, net of amounts capitalized	$ 37.1	$ 31.8	$ 34

Other Financial Information (Su

Other Financial Information (Summary Of Changes In Operating Working Capital) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accounts receivable	$ (47,203)	$ 2,857	$ 59,519
Inventories	2,143	1,121	750
Prepaid expenses and other current assets	13,705	(27,107)	477
Accounts payable and accrued liabilities	83,384	1,043	(53,234)
Income taxes payable	1,697	(25,599)	(37,325)
Current deferred income tax liabilities	0	1,099	(6,662)
Net decrease (increase) in noncash operating working capital	$ 53,726	$ (46,586)	$ (36,475)

Assets and Liabilities Measur78

Assets and Liabilities Measure at Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Fair Value Disclosures [Abstract]
Current and long-term debt, carrying value	$ (670,218)	$ (490,382)
Current and long-term debt, fair value	$ (690,114)	$ (511,916)

Commitments (Details)

Commitments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]
Expected future rental payments under operating leases in 2017	$ 10.4
Expected future rental payments under operating leases in 2018	9.9
Expected future rental payments under operating leases in 2019	9.8
Expected future rental payments under operating leases in 2020	9.6
Expected future rental payments under operating leases in 2021	9.4
Rental expense for noncancelable operating leases	23.2	$ 22.4	$ 8.5
Operating lease expense related to discontinued operations	0	$ 2.7	$ 2.9
Capital Addition Purchase Commitments [Member]
Other Commitments [Line Items]
Commitments for capital expenditures	192.5
Construction in Progress [Member]
Other Commitments [Line Items]
Commitments for capital expenditures	152.4
Building Improvements [Member]
Other Commitments [Line Items]
Commitments for capital expenditures	$ 6.9
Take-Or-Pay Contracts [Member]
Other Commitments [Line Items]
Term of take-or-pay contract	2 years
Take-or-pay contract due in 2017	$ 196.1
Take-or-pay contract due in 2018	$ 196.1

Contingencies (Details)

Contingencies (Details)	12 Months Ended
	Dec. 31, 2016USD ($)site
Commitments and Contingencies Disclosure [Abstract]
Number of Superfund sites for which company may be liable | site	1
Workers' compensation deductible (per occurrence)	$ 1,000,000
General liability insurance deductible	3,000,000
Auto liability insurance deductible	300,000
Workers' compensation accrued liability	19,700,000
Outstanding letters of credit	16,900,000
Liability accrued	$ 0

Business Segments (Summary of I

Business Segments (Summary of Information by Business Segment) (Details) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016USD ($)	Sep. 30, 2016USD ($)	Jun. 30, 2016USD ($)	Mar. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Sep. 30, 2015USD ($)	Jun. 30, 2015USD ($)	Mar. 31, 2015USD ($)	Dec. 31, 2016USD ($)segment	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)
Segment Reporting [Abstract]
Number of operating segments | segment									1
Segment Reporting Information [Line Items]
Segment income (loss)	$ 43,800	$ 45,500	$ 46,300	$ 85,900	$ 66,700	$ 60,500	$ 26,200	$ 22,900	$ 221,492	$ 176,340	$ 243,863
Revenues from external customers	3,055,800	$ 3,042,700	$ 3,005,800	$ 2,490,300	2,928,200	$ 3,382,500	$ 3,468,000	$ 2,920,700	11,594,553	12,699,411	16,986,014
Interest income									578	2,177	244
Interest expense									(39,704)	(33,531)	(36,646)
Income tax expense (benefit)									130,539	80,698	116,386
Depreciation and amortization									98,610	86,568	79,087
Accretion of asset retirement obligations									1,650	1,521	1,200
Deferred and noncurrent income taxes (benefits)									40,407	40,556	(4,403)
Additions to property, plant and equipment									263,856	215,568	138,888
Total assets at year-end	2,088,740				1,886,241				2,088,740	1,886,241	1,949,337
Segment Discontinued Operations [Member]
Segment Reporting Information [Line Items]
Segment income (loss)									0	38,749	20,903
Revenues from external customers									0	0	0
Interest income									0	0	0
Interest expense									0	0	0
Income tax expense (benefit)									0	0	0
Depreciation and amortization									0	0	0
Accretion of asset retirement obligations									0	0	0
Deferred and noncurrent income taxes (benefits)									0	0	0
Additions to property, plant and equipment									0	3,720	3,549
Total assets at year-end	0				0				0	0	56,328
Operating Segments [Member] | Marketing Segment [Member] | Segment Continuing Operations [Member]
Segment Reporting Information [Line Items]
Segment income (loss)									249,790	159,796	242,434
Revenues from external customers									11,594,311	12,699,125	16,985,903
Interest income									0	0	0
Interest expense									(53)	(20)	0
Income tax expense (benefit)									147,217	95,657	127,657
Depreciation and amortization									92,242	81,349	74,906
Accretion of asset retirement obligations									1,650	1,521	1,200
Deferred and noncurrent income taxes (benefits)									51,290	42,593	368
Additions to property, plant and equipment									239,095	202,371	131,139
Total assets at year-end	1,858,055				1,727,131				1,858,055	1,727,131	1,544,018
Corporate, Non-Segment [Member] | Segment Continuing Operations [Member]
Segment Reporting Information [Line Items]
Segment income (loss)									(28,298)	(22,205)	(19,474)
Revenues from external customers									242	286	111
Interest income									578	2,177	244
Interest expense									(39,651)	(33,511)	(36,646)
Income tax expense (benefit)									(16,678)	(14,959)	(11,271)
Depreciation and amortization									6,368	5,219	4,181
Accretion of asset retirement obligations									0	0	0
Deferred and noncurrent income taxes (benefits)									(10,883)	(2,037)	(4,771)
Additions to property, plant and equipment									24,761	9,477	4,200
Total assets at year-end	$ 230,685				$ 159,110				$ 230,685	$ 159,110	$ 348,991

Guarantor Subsidiaries (Narrati

Guarantor Subsidiaries (Narrative) (Details)	Aug. 14, 2013
Senior Notes [Member]
Debt Instrument [Line Items]
Interest rate (percent)	6.00%

Guarantor Subsidiaries (Consoli

Guarantor Subsidiaries (Consolidating Balance Sheet) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current assets
Cash and cash equivalents	$ 153,813	$ 102,335	$ 327,163
Accounts receivable—trade, less allowance for doubtful accounts of $1,891 in 2016 and $1,963 in 2015	183,519	136,253
Inventories, at lower of cost or market	153,351	155,906
Prepaid expenses and other current assets	24,871	41,173
Total current assets	515,554	435,667
Property, plant and equipment, at cost less accumulated depreciation and amortization of $780,426 in 2016 and $724,486 in 2015	1,532,655	1,369,318
Restricted cash	0	68,571
Investments in subsidiaries	0	0
Other assets	40,531	12,685
Total assets	2,088,740	1,886,241	1,949,337
Current liabilities
Current maturities of long-term debt	40,596	222
Inter-company accounts payable	0	0
Trade accounts payable and accrued liabilities	473,370	390,341
Income taxes payable	594	0
Deferred income taxes	0	1,729
Total current liabilities	514,560	392,292
Long-term debt, including capitalized lease obligations	629,622	490,160
Deferred income taxes	204,656	161,236
Asset retirement obligations	26,200	24,345
Deferred credits and other liabilities	16,626	25,918
Total liabilities	1,391,664	1,093,951
Stockholders' Equity
Preferred Stock, par $0.01 (authorized 20,000,000 shares, none outstanding)	0	0
Common Stock, par $0.01, (authorized 200,000,000 shares, 46,767,164 and 46,767,164 shares issued at 2016 and 2015, respectively)	468	468
Treasury stock (9,831,196 and 5,088,434 shares held at December 31, 2016 and December 31, 2015, respectively)	(608,001)	(294,139)
Additional paid in capital (APIC)	555,338	558,182
Retained earnings	749,271	527,779
Total stockholders' equity	697,076	792,290	858,705	$ 656,336
Total liabilities and stockholders' equity	2,088,740	1,886,241
Eliminations [Member]
Current assets
Cash and cash equivalents	0	0	0
Accounts receivable—trade, less allowance for doubtful accounts of $1,891 in 2016 and $1,963 in 2015	0	0
Inventories, at lower of cost or market	0	0
Prepaid expenses and other current assets	0	0
Total current assets	0	0
Property, plant and equipment, at cost less accumulated depreciation and amortization of $780,426 in 2016 and $724,486 in 2015	0	0
Restricted cash	0	0
Investments in subsidiaries	(2,123,027)	(1,901,538)
Other assets	0	0
Total assets	(2,123,027)	(1,901,538)
Current liabilities
Current maturities of long-term debt	0	0
Inter-company accounts payable	0	0
Trade accounts payable and accrued liabilities	0	0
Income taxes payable	0	0
Deferred income taxes	0	0
Total current liabilities	0	0
Long-term debt, including capitalized lease obligations	0	0
Deferred income taxes	0	0
Asset retirement obligations	0	0
Deferred credits and other liabilities	0	0
Total liabilities	0	0
Stockholders' Equity
Preferred Stock, par $0.01 (authorized 20,000,000 shares, none outstanding)	0	0
Common Stock, par $0.01, (authorized 200,000,000 shares, 46,767,164 and 46,767,164 shares issued at 2016 and 2015, respectively)	(61)	(61)
Treasury stock (9,831,196 and 5,088,434 shares held at December 31, 2016 and December 31, 2015, respectively)	0	0
Additional paid in capital (APIC)	(1,368,382)	(1,368,384)
Retained earnings	(754,584)	(533,093)
Total stockholders' equity	(2,123,027)	(1,901,538)
Total liabilities and stockholders' equity	(2,123,027)	(1,901,538)
Parent Company [Member]
Current assets
Cash and cash equivalents	0	0	0
Accounts receivable—trade, less allowance for doubtful accounts of $1,891 in 2016 and $1,963 in 2015	0	0
Inventories, at lower of cost or market	0	0
Prepaid expenses and other current assets	0	0
Total current assets	0	0
Property, plant and equipment, at cost less accumulated depreciation and amortization of $780,426 in 2016 and $724,486 in 2015	0	0
Restricted cash	0	0
Investments in subsidiaries	1,978,110	1,756,617
Other assets	0	0
Total assets	1,978,110	1,756,617
Current liabilities
Current maturities of long-term debt	0	0
Inter-company accounts payable	623,316	300,044
Trade accounts payable and accrued liabilities	0	0
Income taxes payable	0	0
Deferred income taxes	0	0
Total current liabilities	623,316	300,044
Long-term debt, including capitalized lease obligations	0	0
Deferred income taxes	0	0
Asset retirement obligations	0	0
Deferred credits and other liabilities	0	0
Total liabilities	623,316	300,044
Stockholders' Equity
Preferred Stock, par $0.01 (authorized 20,000,000 shares, none outstanding)	0	0
Common Stock, par $0.01, (authorized 200,000,000 shares, 46,767,164 and 46,767,164 shares issued at 2016 and 2015, respectively)	468	468
Treasury stock (9,831,196 and 5,088,434 shares held at December 31, 2016 and December 31, 2015, respectively)	(608,001)	(294,139)
Additional paid in capital (APIC)	1,213,056	1,222,465
Retained earnings	749,271	527,779
Total stockholders' equity	1,354,794	1,456,573
Total liabilities and stockholders' equity	1,978,110	1,756,617
Issuer [Member]
Current assets
Cash and cash equivalents	153,813	102,335	327,163
Accounts receivable—trade, less allowance for doubtful accounts of $1,891 in 2016 and $1,963 in 2015	183,519	136,253
Inventories, at lower of cost or market	153,351	155,906
Prepaid expenses and other current assets	24,871	41,173
Total current assets	515,554	435,667
Property, plant and equipment, at cost less accumulated depreciation and amortization of $780,426 in 2016 and $724,486 in 2015	1,532,655	1,369,318
Restricted cash	0	68,571
Investments in subsidiaries	144,917	144,921
Other assets	40,531	12,685
Total assets	2,233,657	2,031,162
Current liabilities
Current maturities of long-term debt	40,596	222
Inter-company accounts payable	(416,914)	(93,644)
Trade accounts payable and accrued liabilities	473,370	390,341
Income taxes payable	591	0
Deferred income taxes	0	1,729
Total current liabilities	97,643	298,648
Long-term debt, including capitalized lease obligations	629,622	490,160
Deferred income taxes	204,656	161,236
Asset retirement obligations	26,200	24,345
Deferred credits and other liabilities	16,626	25,918
Total liabilities	974,747	1,000,307
Stockholders' Equity
Preferred Stock, par $0.01 (authorized 20,000,000 shares, none outstanding)	0	0
Common Stock, par $0.01, (authorized 200,000,000 shares, 46,767,164 and 46,767,164 shares issued at 2016 and 2015, respectively)	1	1
Treasury stock (9,831,196 and 5,088,434 shares held at December 31, 2016 and December 31, 2015, respectively)	0	0
Additional paid in capital (APIC)	571,117	564,554
Retained earnings	687,792	466,300
Total stockholders' equity	1,258,910	1,030,855
Total liabilities and stockholders' equity	2,233,657	2,031,162
Guarantor Subsidiaries [Member]
Current assets
Cash and cash equivalents	0	0	0
Accounts receivable—trade, less allowance for doubtful accounts of $1,891 in 2016 and $1,963 in 2015	0	0
Inventories, at lower of cost or market	0	0
Prepaid expenses and other current assets	0	0
Total current assets	0	0
Property, plant and equipment, at cost less accumulated depreciation and amortization of $780,426 in 2016 and $724,486 in 2015	0	0
Restricted cash	0	0
Investments in subsidiaries	0	0
Other assets	0	0
Total assets	0	0
Current liabilities
Current maturities of long-term debt	0	0
Inter-company accounts payable	(52,064)	(52,062)
Trade accounts payable and accrued liabilities	0	0
Income taxes payable	3	0
Deferred income taxes	0	0
Total current liabilities	(52,061)	(52,062)
Long-term debt, including capitalized lease obligations	0	0
Deferred income taxes	0	0
Asset retirement obligations	0	0
Deferred credits and other liabilities	0	0
Total liabilities	(52,061)	(52,062)
Stockholders' Equity
Preferred Stock, par $0.01 (authorized 20,000,000 shares, none outstanding)	0	0
Common Stock, par $0.01, (authorized 200,000,000 shares, 46,767,164 and 46,767,164 shares issued at 2016 and 2015, respectively)	60	60
Treasury stock (9,831,196 and 5,088,434 shares held at December 31, 2016 and December 31, 2015, respectively)	0	0
Additional paid in capital (APIC)	52,004	52,004
Retained earnings	(3)	(2)
Total stockholders' equity	52,061	52,062
Total liabilities and stockholders' equity	0	0
Non-Guarantor Subsidiaries [Member]
Current assets
Cash and cash equivalents	0	0	$ 0
Accounts receivable—trade, less allowance for doubtful accounts of $1,891 in 2016 and $1,963 in 2015	0	0
Inventories, at lower of cost or market	0	0
Prepaid expenses and other current assets	0	0
Total current assets	0	0
Property, plant and equipment, at cost less accumulated depreciation and amortization of $780,426 in 2016 and $724,486 in 2015	0	0
Restricted cash	0	0
Investments in subsidiaries	0	0
Other assets	0	0
Total assets	0	0
Current liabilities
Current maturities of long-term debt	0	0
Inter-company accounts payable	(154,338)	(154,338)
Trade accounts payable and accrued liabilities	0	0
Income taxes payable	0	0
Deferred income taxes	0	0
Total current liabilities	(154,338)	(154,338)
Long-term debt, including capitalized lease obligations	0	0
Deferred income taxes	0	0
Asset retirement obligations	0	0
Deferred credits and other liabilities	0	0
Total liabilities	(154,338)	(154,338)
Stockholders' Equity
Preferred Stock, par $0.01 (authorized 20,000,000 shares, none outstanding)	0	0
Common Stock, par $0.01, (authorized 200,000,000 shares, 46,767,164 and 46,767,164 shares issued at 2016 and 2015, respectively)	0	0
Treasury stock (9,831,196 and 5,088,434 shares held at December 31, 2016 and December 31, 2015, respectively)	0	0
Additional paid in capital (APIC)	87,543	87,543
Retained earnings	66,795	66,795
Total stockholders' equity	154,338	154,338
Total liabilities and stockholders' equity	$ 0	$ 0

Guarantor Subsidiaries (Conso84

Guarantor Subsidiaries (Consolidating Balance Sheet Parenthetical) (Details) - USD ($) $ / shares in Units, $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Mar. 31, 2013
Guarantor Subsidiaries [Abstract]
Accounts receivable - trade, allowance for doubtful accounts	$ 1,891	$ 1,963
Property, plant and equipment, accumulated depreciation and amortization	$ 780,426	$ 724,486
Preferred stock par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock shares authorized (in shares)	20,000,000	20,000,000
Preferred stock shares outstanding (in shares)	0	0
Common stock par value (in dollars per share)	$ 0.01	$ 0.01	$ 0.01
Common stock shares authorized (in shares)	200,000,000	200,000,000
Common stock shares issued (in shares)	46,767,164	46,767,164
Treasury stock (in shares)	9,831,196	5,088,434

Guarantor Subsidiaries (Conso85

Guarantor Subsidiaries (Consolidating Income Statement) (Details) - USD ($) $ in Thousands		3 Months Ended								12 Months Ended
		Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenues
Petroleum product sales	[1]									$ 9,070,623	$ 10,304,689	$ 14,728,527
Merchandise sales										2,338,586	2,273,888	2,161,378
Other operating revenues										185,344	120,834	96,109
Total revenues		$ 3,055,800	$ 3,042,700	$ 3,005,800	$ 2,490,300	$ 2,928,200	$ 3,382,500	$ 3,468,000	$ 2,920,700	11,594,553	12,699,411	16,986,014
Costs and operating expenses
Petroleum product cost of goods sold	[1]									8,603,953	9,794,475	14,074,579
Merchandise cost of goods sold										1,974,486	1,946,423	1,859,732
Station and other operating expenses										493,320	486,383	486,762
Depreciation and amortization										98,610	86,568	79,087
Selling, general and administrative										122,669	129,277	119,266
Accretion expense										1,650	1,521	1,200
Total costs and operating expenses										11,294,688	12,444,647	16,620,626
Income from operations										299,865	254,764	365,388
Other income (expense)
Interest income										578	2,177	244
Interest expense										(39,704)	(33,531)	(36,646)
Gain (loss) on sale of assets										88,212	(4,658)	194
Other nonoperating income (expense)										3,080	(463)	10,166
Total other income (expense)										52,166	(36,475)	(26,042)
Income from continuing operations before income taxes		66,800	71,800	74,100	139,300	44,500	94,100	38,800	40,900	352,031	218,289	339,346
Income tax expense										130,539	80,698	116,386
Income from continuing operations		43,800	45,500	46,300	85,900	29,200	60,000	24,800	23,600	221,492	137,591	222,960
Income from discontinued operations, net of income taxes										0	38,749	20,903
Equity earnings in affiliates, net of tax										0	0	0
Net Income		$ 43,800	$ 45,500	$ 46,300	$ 85,900	$ 66,700	$ 60,500	$ 26,200	$ 22,900	221,492	176,340	243,863
Eliminations [Member]
Revenues
Petroleum product sales										0	(120,166)	(183,131)
Merchandise sales										0	0	0
Other operating revenues										0	0	0
Total revenues										0	(120,166)	(183,131)
Costs and operating expenses
Petroleum product cost of goods sold										0	(120,166)	(183,131)
Merchandise cost of goods sold										0	0	0
Station and other operating expenses										0	0	0
Depreciation and amortization										0	0	0
Selling, general and administrative										0	0	0
Accretion expense										0	0	0
Total costs and operating expenses										0	(120,166)	(183,131)
Income from operations										0	0	0
Other income (expense)
Interest income										0	0	0
Interest expense										0	0	0
Gain (loss) on sale of assets										0	0	0
Other nonoperating income (expense)										0	0	0
Total other income (expense)										0	0	0
Income from continuing operations before income taxes										0	0	0
Income tax expense										0	0	0
Income from continuing operations										0	0	0
Income from discontinued operations, net of income taxes										0	0	0
Equity earnings in affiliates, net of tax										(221,491)	(92,130)	(440,963)
Net Income										(221,491)	(92,130)	(440,963)
Parent Company [Member]
Revenues
Petroleum product sales										0	0	0
Merchandise sales										0	0	0
Other operating revenues										0	0	0
Total revenues										0	0	0
Costs and operating expenses
Petroleum product cost of goods sold										0	0	0
Merchandise cost of goods sold										0	0	0
Station and other operating expenses										0	0	0
Depreciation and amortization										0	0	0
Selling, general and administrative										0	0	0
Accretion expense										0	0	0
Total costs and operating expenses										0	0	0
Income from operations										0	0	0
Other income (expense)
Interest income										0	0	0
Interest expense										0	0	0
Gain (loss) on sale of assets										0	0	0
Other nonoperating income (expense)										0	0	0
Total other income (expense)										0	0	0
Income from continuing operations before income taxes										0	0	0
Income tax expense										0	0	0
Income from continuing operations										0	0	0
Income from discontinued operations, net of income taxes										0	0	0
Equity earnings in affiliates, net of tax										221,492	176,340	351,439
Net Income										221,492	176,340	351,439
Issuer [Member]
Revenues
Petroleum product sales										9,070,623	10,424,855	14,911,658
Merchandise sales										2,338,586	2,273,888	2,161,378
Other operating revenues										185,344	120,834	96,109
Total revenues										11,594,553	12,819,577	17,169,145
Costs and operating expenses
Petroleum product cost of goods sold										8,603,953	9,914,641	14,257,710
Merchandise cost of goods sold										1,974,486	1,946,423	1,859,732
Station and other operating expenses										493,320	486,383	486,762
Depreciation and amortization										98,610	86,568	79,087
Selling, general and administrative										122,668	129,276	119,265
Accretion expense										1,650	1,521	1,200
Total costs and operating expenses										11,294,687	12,564,812	16,803,756
Income from operations										299,866	254,765	365,389
Other income (expense)
Interest income										578	2,177	244
Interest expense										(39,704)	(33,531)	(36,646)
Gain (loss) on sale of assets										88,212	(4,658)	194
Other nonoperating income (expense)										3,080	(463)	10,166
Total other income (expense)										52,166	(36,475)	(26,042)
Income from continuing operations before income taxes										352,032	218,290	339,347
Income tax expense										130,539	80,698	116,386
Income from continuing operations										221,493	137,592	222,961
Income from discontinued operations, net of income taxes										0	0	0
Equity earnings in affiliates, net of tax										(1)	(22,731)	89,524
Net Income										221,492	114,861	312,485
Guarantor Subsidiaries [Member]
Revenues
Petroleum product sales										0	0	0
Merchandise sales										0	0	0
Other operating revenues										0	0	0
Total revenues										0	0	0
Costs and operating expenses
Petroleum product cost of goods sold										0	0	0
Merchandise cost of goods sold										0	0	0
Station and other operating expenses										0	0	0
Depreciation and amortization										0	0	0
Selling, general and administrative										1	1	1
Accretion expense										0	0	0
Total costs and operating expenses										1	1	1
Income from operations										(1)	(1)	(1)
Other income (expense)
Interest income										0	0	0
Interest expense										0	0	0
Gain (loss) on sale of assets										0	0	0
Other nonoperating income (expense)										0	0	0
Total other income (expense)										0	0	0
Income from continuing operations before income taxes										(1)	(1)	(1)
Income tax expense										0	0	0
Income from continuing operations										(1)	(1)	(1)
Income from discontinued operations, net of income taxes										0	0	0
Equity earnings in affiliates, net of tax										0	0	0
Net Income										(1)	(1)	(1)
Non-Guarantor Subsidiaries [Member]
Revenues
Petroleum product sales										0	0	0
Merchandise sales										0	0	0
Other operating revenues										0	0	0
Total revenues										0	0	0
Costs and operating expenses
Petroleum product cost of goods sold										0	0	0
Merchandise cost of goods sold										0	0	0
Station and other operating expenses										0	0	0
Depreciation and amortization										0	0	0
Selling, general and administrative										0	0	0
Accretion expense										0	0	0
Total costs and operating expenses										0	0	0
Income from operations										0	0	0
Other income (expense)
Interest income										0	0	0
Interest expense										0	0	0
Gain (loss) on sale of assets										0	0	0
Other nonoperating income (expense)										0	0	0
Total other income (expense)										0	0	0
Income from continuing operations before income taxes										0	0	0
Income tax expense										0	0	0
Income from continuing operations										0	0	0
Income from discontinued operations, net of income taxes										0	38,749	20,903
Equity earnings in affiliates, net of tax										0	(61,479)	0
Net Income										$ 0	$ (22,730)	$ 20,903
[1]	Includes excise taxes of: $1,961,478, $1,968,629, and $1,930,608.

Guarantor Subsidiaries (Conso86

Guarantor Subsidiaries (Consolidating Statement Of Cash Flow) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Operating Activities
Net income	$ 43,800	$ 45,500	$ 46,300	$ 85,900	$ 66,700	$ 60,500	$ 26,200	$ 22,900	$ 221,492	$ 176,340	$ 243,863
Adjustments to reconcile net income to net cash provided by operating activities
(Income) loss from discontinued operations, net of taxes									0	(38,749)	(20,903)
Depreciation and amortization									98,610	86,568	79,087
Deferred and noncurrent income tax charges (credits)									40,407	40,556	(4,403)
Accretion of asset retirement obligations									1,650	1,521	1,200
Pretax (gains) losses from sale of assets									(88,212)	4,658	(194)
Net decrease (increase) in noncash operating working capital									53,726	(46,586)	(36,475)
Equity in earnings									0	0	0
Other operating activities - net									9,767	9,417	14,531
Net cash provided by (used in) continuing operations									337,440	233,725	276,706
Net cash provided by (used in) discontinued operations									0	(17,887)	28,876
Net cash provided by operating activities									337,440	215,838	305,582
Investing Activities
Property additions									(262,144)	(205,225)	(135,339)
Proceeds from sale of assets									85,327	729	376
Changes in restricted cash									68,571	(68,571)	0
Other investing activities - net									(28,963)	(2,889)	(10,631)
Sales proceeds									0	93,765	1,097
Other									2,355	(7,443)	(4,918)
Net cash required by investing activities									(134,854)	(189,634)	(149,415)
Financing Activities
Purchase of treasury stock									(323,272)	(248,695)	(51,348)
Repayments of long-term debt									(20,438)	(146)	(70,000)
Additions to long-term debt									200,000	0	0
Debt issuance costs									(3,240)	(58)	(875)
Amounts related to share-based compensation									(4,158)	(3,075)	(580)
Net distributions to parent									0	0	0
Net cash required by financing activities									(151,108)	(251,974)	(122,803)
Net change in cash and cash equivalents									51,478	(225,770)	33,364
Cash and cash equivalents at January 1				102,335				328,105	102,335	328,105	294,741
Cash and cash equivalents at December 31	153,813				102,335				153,813	102,335	328,105
Less: Cash and cash equivalents held for sale	0				0				0	0	942
Cash and cash equivalents	153,813				102,335				153,813	102,335	327,163
Eliminations [Member]
Operating Activities
Net income									(221,491)	(92,130)	(440,963)
Adjustments to reconcile net income to net cash provided by operating activities
(Income) loss from discontinued operations, net of taxes									0	0	0
Depreciation and amortization									0	0	0
Deferred and noncurrent income tax charges (credits)									0	0	0
Accretion of asset retirement obligations									0	0	0
Pretax (gains) losses from sale of assets									0	0	0
Net decrease (increase) in noncash operating working capital									0	0	0
Equity in earnings									221,491	92,130	440,963
Other operating activities - net									0	0	0
Net cash provided by (used in) continuing operations									0	0	0
Net cash provided by (used in) discontinued operations									0	0	0
Net cash provided by operating activities									0	0	0
Investing Activities
Property additions									0	0	0
Proceeds from sale of assets									0	0	0
Changes in restricted cash									0	0
Other investing activities - net									0	0	0
Sales proceeds									0	0	0
Other									0	0	0
Net cash required by investing activities									0	0	0
Financing Activities
Purchase of treasury stock									0	0	0
Repayments of long-term debt									0	0	0
Additions to long-term debt									0	0	0
Debt issuance costs									0	0	0
Amounts related to share-based compensation									0	0	0
Net distributions to parent									0	0	0
Net cash required by financing activities									0	0	0
Net change in cash and cash equivalents									0	0	0
Cash and cash equivalents at January 1				0				0	0	0	0
Cash and cash equivalents at December 31	0				0				0	0	0
Less: Cash and cash equivalents held for sale	0				0				0	0	0
Cash and cash equivalents	0				0				0	0	0
Parent Company [Member]
Operating Activities
Net income									221,492	176,340	351,439
Adjustments to reconcile net income to net cash provided by operating activities
(Income) loss from discontinued operations, net of taxes									0	0	0
Depreciation and amortization									0	0	0
Deferred and noncurrent income tax charges (credits)									0	0	0
Accretion of asset retirement obligations									0	0	0
Pretax (gains) losses from sale of assets									0	0	0
Net decrease (increase) in noncash operating working capital									0	0	0
Equity in earnings									(221,492)	(176,340)	(351,439)
Other operating activities - net									0	0	0
Net cash provided by (used in) continuing operations									0	0	0
Net cash provided by (used in) discontinued operations									0	0	0
Net cash provided by operating activities									0	0	0
Investing Activities
Property additions									0	0	0
Proceeds from sale of assets									0	0	0
Changes in restricted cash									0	0
Other investing activities - net									0	0	0
Sales proceeds									0	0	0
Other									0	0	0
Net cash required by investing activities									0	0	0
Financing Activities
Purchase of treasury stock									(323,272)	(248,695)	(51,348)
Repayments of long-term debt									0	0	0
Additions to long-term debt									0	0	0
Debt issuance costs									0	0	0
Amounts related to share-based compensation									0	0	0
Net distributions to parent									323,272	248,695	51,348
Net cash required by financing activities									0	0	0
Net change in cash and cash equivalents									0	0	0
Cash and cash equivalents at January 1				0				0	0	0	0
Cash and cash equivalents at December 31	0				0				0	0	0
Less: Cash and cash equivalents held for sale	0				0				0	0	0
Cash and cash equivalents	0				0				0	0	0
Issuer [Member]
Operating Activities
Net income									221,492	114,861	312,485
Adjustments to reconcile net income to net cash provided by operating activities
(Income) loss from discontinued operations, net of taxes									0	0	0
Depreciation and amortization									98,610	86,568	79,087
Deferred and noncurrent income tax charges (credits)									40,407	40,556	(4,403)
Accretion of asset retirement obligations									1,650	1,521	1,200
Pretax (gains) losses from sale of assets									(88,212)	4,658	(194)
Net decrease (increase) in noncash operating working capital									53,726	(46,586)	(36,475)
Equity in earnings									1	22,731	(89,524)
Other operating activities - net									9,767	9,417	14,531
Net cash provided by (used in) continuing operations									337,441	233,726	276,707
Net cash provided by (used in) discontinued operations									0	0	0
Net cash provided by operating activities									337,441	233,726	276,707
Investing Activities
Property additions									(262,144)	(205,225)	(135,339)
Proceeds from sale of assets									85,327	729	376
Changes in restricted cash									68,571	(68,571)
Other investing activities - net									(28,963)	(2,889)	(10,631)
Sales proceeds									0	0	0
Other									2,355	0	0
Net cash required by investing activities									(134,854)	(275,956)	(145,594)
Financing Activities
Purchase of treasury stock									0	0	0
Repayments of long-term debt									(20,438)	(146)	(70,000)
Additions to long-term debt									200,000	0	0
Debt issuance costs									(3,240)	(58)	(875)
Amounts related to share-based compensation									(4,158)	(3,075)	(580)
Net distributions to parent									(323,273)	(179,319)	(27,236)
Net cash required by financing activities									(151,109)	(182,598)	(98,691)
Net change in cash and cash equivalents									51,478	(224,828)	32,422
Cash and cash equivalents at January 1				102,335				327,163	102,335	327,163	294,741
Cash and cash equivalents at December 31	153,813				102,335				153,813	102,335	327,163
Less: Cash and cash equivalents held for sale	0				0				0	0	0
Cash and cash equivalents	153,813				102,335				153,813	102,335	327,163
Guarantor Subsidiaries [Member]
Operating Activities
Net income									(1)	(1)	(1)
Adjustments to reconcile net income to net cash provided by operating activities
(Income) loss from discontinued operations, net of taxes									0	0	0
Depreciation and amortization									0	0	0
Deferred and noncurrent income tax charges (credits)									0	0	0
Accretion of asset retirement obligations									0	0	0
Pretax (gains) losses from sale of assets									0	0	0
Net decrease (increase) in noncash operating working capital									0	0	0
Equity in earnings									0	0	0
Other operating activities - net									0	0	0
Net cash provided by (used in) continuing operations									(1)	(1)	(1)
Net cash provided by (used in) discontinued operations									0	0	0
Net cash provided by operating activities									(1)	(1)	(1)
Investing Activities
Property additions									0	0	0
Proceeds from sale of assets									0	0	0
Changes in restricted cash									0	0
Other investing activities - net									0	0	0
Sales proceeds									0	0	0
Other									0	0	0
Net cash required by investing activities									0	0	0
Financing Activities
Purchase of treasury stock									0	0	0
Repayments of long-term debt									0	0	0
Additions to long-term debt									0	0	0
Debt issuance costs									0	0	0
Amounts related to share-based compensation									0	0	0
Net distributions to parent									1	1	1
Net cash required by financing activities									1	1	1
Net change in cash and cash equivalents									0	0	0
Cash and cash equivalents at January 1				0				0	0	0	0
Cash and cash equivalents at December 31	0				0				0	0	0
Less: Cash and cash equivalents held for sale	0				0				0	0	0
Cash and cash equivalents	0				0				0	0	0
Non-Guarantor Subsidiaries [Member]
Operating Activities
Net income									0	(22,730)	20,903
Adjustments to reconcile net income to net cash provided by operating activities
(Income) loss from discontinued operations, net of taxes									0	(38,749)	(20,903)
Depreciation and amortization									0	0	0
Deferred and noncurrent income tax charges (credits)									0	0	0
Accretion of asset retirement obligations									0	0	0
Pretax (gains) losses from sale of assets									0	0	0
Net decrease (increase) in noncash operating working capital									0	0	0
Equity in earnings									0	61,479	0
Other operating activities - net									0	0	0
Net cash provided by (used in) continuing operations									0	0	0
Net cash provided by (used in) discontinued operations									0	(17,887)	28,876
Net cash provided by operating activities									0	(17,887)	28,876
Investing Activities
Property additions									0	0	0
Proceeds from sale of assets									0	0	0
Changes in restricted cash									0	0
Other investing activities - net									0	0	0
Sales proceeds									0	93,765	1,097
Other									0	(7,443)	(4,918)
Net cash required by investing activities									0	86,322	(3,821)
Financing Activities
Purchase of treasury stock									0	0	0
Repayments of long-term debt									0	0	0
Additions to long-term debt									0	0	0
Debt issuance costs									0	0	0
Amounts related to share-based compensation									0	0	0
Net distributions to parent									0	(69,377)	(24,113)
Net cash required by financing activities									0	(69,377)	(24,113)
Net change in cash and cash equivalents									0	(942)	942
Cash and cash equivalents at January 1				$ 0				$ 942	0	942	0
Cash and cash equivalents at December 31	0				0				0	0	942
Less: Cash and cash equivalents held for sale	0				0				0	0	942
Cash and cash equivalents	$ 0				$ 0				$ 0	$ 0	$ 0

Guarantor Subsidiaries (Conso87

Guarantor Subsidiaries (Consolidating Statement Of Changes In Equity) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance				$ 792,290				$ 858,705	$ 792,290	$ 858,705	$ 656,336
Repurchase of common stock									(323,272)	(248,695)	(51,348)
Issuance of common stock									0	0	1
Amounts related to share-based compensation									(2,748)	(3,075)	(582)
Share-based compensation expense									9,314	9,015	10,435
Net income	$ 43,800	$ 45,500	$ 46,300	85,900	$ 66,700	$ 60,500	$ 26,200	22,900	221,492	176,340	243,863
Balance	697,076				792,290				697,076	792,290	858,705
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance				468				468	468	468	467
Issuance of common stock									0	0	1
Balance	468				468				468	468	468
Treasury Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance				(294,139)				(51,073)	(294,139)	(51,073)	0
Issuance of common stock									9,410	5,629	275
Repurchase of common stock									(323,272)	(248,695)	(51,348)
Balance	(608,001)				(294,139)				(608,001)	(294,139)	(51,073)
APIC
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance				558,182				557,871	558,182	557,871	548,293
Issuance of common stock									(9,410)	(5,629)	(275)
Amounts related to share-based compensation									(2,748)	(3,075)	(582)
Share-based compensation expense									9,314	9,015	10,435
Balance	555,338				558,182				555,338	558,182	557,871
Retained Earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance				527,779				351,439	527,779	351,439	107,576
Net income									221,492	176,340	243,863
Balance	749,271				527,779				749,271	527,779	351,439
Eliminations [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance				(1,901,538)					(1,901,538)
Net income									(221,491)	(92,130)	(440,963)
Balance	(2,123,027)				(1,901,538)				(2,123,027)	(1,901,538)
Eliminations [Member] | Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance				(61)				(61)	(61)	(61)	(61)
Issuance of common stock											0
Balance	(61)				(61)				(61)	(61)	(61)
Eliminations [Member] | APIC
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance				(1,368,382)				(1,316,516)	(1,368,382)	(1,316,516)	(1,316,516)
Reclassification of equity										(51,866)
Balance	(1,368,382)				(1,368,382)				(1,368,382)	(1,368,382)	(1,316,516)
Eliminations [Member] | Retained Earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance				(533,093)				(440,963)	(533,093)	(440,963)	0
Net income									(221,491)	(92,130)	(440,963)
Balance	(754,584)				(533,093)				(754,584)	(533,093)	(440,963)
Parent Company [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance				1,456,573					1,456,573
Net income									221,492	176,340	351,439
Balance	1,354,794				1,456,573				1,354,794	1,456,573
Parent Company [Member] | Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance				468				468	468	468	467
Issuance of common stock									0	0	1
Balance	468				468				468	468	468
Parent Company [Member] | Treasury Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance				(294,139)				(51,073)	(294,139)	(51,073)	0
Issuance of common stock									9,410	5,629	275
Repurchase of common stock									(323,272)	(248,695)	(51,348)
Balance	(608,001)				(294,139)				(608,001)	(294,139)	(51,073)
Parent Company [Member] | APIC
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance				1,222,466				1,228,095	1,222,466	1,228,095	1,228,370
Issuance of common stock									(9,410)	(5,629)	(275)
Balance	1,213,056				1,222,466				1,213,056	1,222,466	1,228,095
Parent Company [Member] | Retained Earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance				527,779				351,439	527,779	351,439	0
Net income									221,492	176,340	351,439
Balance	749,271				527,779				749,271	527,779	351,439
Issuer [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance				1,030,855					1,030,855
Net income									221,492	114,861	312,485
Balance	1,258,910				1,030,855				1,258,910	1,030,855
Issuer [Member] | Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance				1				1	1	1	1
Issuance of common stock											0
Balance	1				1				1	1	1
Issuer [Member] | APIC
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance				564,551				558,611	564,551	558,611	548,758
Issuance of common stock											0
Amounts related to share-based compensation									(2,748)	(3,075)	(582)
Share-based compensation expense									9,314	9,015	10,435
Balance	571,117				564,551				571,117	564,551	558,611
Issuer [Member] | Retained Earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance				466,300				351,439	466,300	351,439	38,954
Net income									221,492	114,861	312,485
Balance	687,792				466,300				687,792	466,300	351,439
Guarantor Subsidiaries [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance				52,062					52,062
Net income									(1)	(1)	(1)
Balance	52,061				52,062				52,061	52,062
Guarantor Subsidiaries [Member] | Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance				60				60	60	60	60
Issuance of common stock											0
Balance	60				60				60	60	60
Guarantor Subsidiaries [Member] | APIC
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance				52,004				52,004	52,004	52,004	52,004
Balance	52,004				52,004				52,004	52,004	52,004
Guarantor Subsidiaries [Member] | Retained Earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance				(2)				(1)	(2)	(1)	0
Net income									(1)	(1)	(1)
Balance	(3)				(2)				(3)	(2)	(1)
Non-Guarantor Subsidiaries [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance				154,338					154,338
Net income									0	(22,730)	20,903
Balance	154,338				154,338				154,338	154,338
Non-Guarantor Subsidiaries [Member] | APIC
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance				87,543				35,677	87,543	35,677	35,677
Reclassification of equity										51,866
Balance	87,543				87,543				87,543	87,543	35,677
Non-Guarantor Subsidiaries [Member] | Retained Earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance				$ 66,795				$ 89,525	66,795	89,525	68,622
Net income									0	(22,730)	20,903
Balance	$ 66,795				$ 66,795				$ 66,795	$ 66,795	$ 89,525

Supplemental Quarterly Inform88

Supplemental Quarterly Information (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]
Sales and other operating revenues	$ 3,055,800	$ 3,042,700	$ 3,005,800	$ 2,490,300	$ 2,928,200	$ 3,382,500	$ 3,468,000	$ 2,920,700	$ 11,594,553	$ 12,699,411	$ 16,986,014
Income from continuing operations before income taxes	66,800	71,800	74,100	139,300	44,500	94,100	38,800	40,900	352,031	218,289	339,346
Income from continuing operations	43,800	45,500	46,300	85,900	29,200	60,000	24,800	23,600	221,492	137,591	222,960
Net income	$ 43,800	$ 45,500	$ 46,300	$ 85,900	$ 66,700	$ 60,500	$ 26,200	$ 22,900	$ 221,492	$ 176,340	$ 243,863
Income from continuing operations (per Common share)
Income from continuing operations - basic (in dollars per share)	$ 1.16	$ 1.17	$ 1.18	$ 2.10	$ 0.70	$ 1.41	$ 0.56	$ 0.52	$ 5.64	$ 3.17	$ 4.84
Income from continuing operations - diluted (in dollars per share)	1.14	1.16	1.17	2.08	0.69	1.40	0.56	0.51	5.59	3.14	4.81
Net income (per Common share)
Net income - basic (in dollars per share)	1.16	1.17	1.18	2.10	1.60	1.42	0.59	0.50	5.64	4.06	5.29
Net income - diluted (in dollars per share)	1.14	1.16	1.17	2.08	1.58	1.41	0.59	0.50	5.59	4.02	$ 5.26
Market price of Common stock
High (in dollars per share)	72.56	79.29	74.16	67.18	65.09	57.40	73.47	73.48	79.29	73.48
Low (in dollars per share)	$ 57.80	$ 70.08	$ 57.42	$ 54.24	$ 54.17	$ 48.70	$ 55.82	$ 66.82	$ 54.24	$ 48.70

Schedule II - Valuation And Q89

Schedule II - Valuation And Qualifying Accounts (Details) - Allowance for Doubtful Accounts [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at January 1,	$ 1,963	$ 4,456	$ 4,576
Charged (Credited) to Expense	0	0	0
Deductions	(72)	(2,493)	(120)
Balance at December 31,	$ 1,891	$ 1,963	$ 4,456