HF Sinclair 10-Q 5 Nov 15 2015 Q3 Quarterly report Financial data

Document And Entity Information

Document And Entity Information	9 Months Ended
	Sep. 30, 2015shares
Document And Entity Information [Abstract]
Entity Registrant Name	HollyFrontier Corp
Entity Central Index Key	48,039
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Sep. 30, 2015
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding	182,905,387

Consolidated Balance Sheets (Un

Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents (HEP: $10,856 and $2,830, respectively)	$ 239,731	$ 567,985
Marketable securities	387,053	474,110
Total cash, cash equivalents and short-term marketable securities	626,784	1,042,095
Accounts receivable: Product and transportation (HEP: $32,968 and $40,129, respectively)	495,231	507,040
Crude oil resales	27,118	82,865
Accounts receivable, total	522,349	589,905
Inventories: Crude oil and refined products	899,513	920,104
Materials and supplies (HEP: $1,903 and $1,940, respectively)	137,511	115,027
Inventories, total	1,037,024	1,035,131
Income taxes receivable	0	11,719
Deferred income tax assets	48,419	0
Prepayments and other (HEP: $2,671 and $2,443, respectively)	73,097	104,148
Total current assets	2,307,673	2,782,998
Properties, plants and equipment, at cost (HEP: $1,316,492 and $1,269,161, respectively)	5,309,079	4,852,441
Less accumulated depreciation (HEP: $(284,590) and $(244,850), respectively)	(1,331,821)	(1,181,902)
Properties, plants and equipment, net	3,977,258	3,670,539
Turnaround costs	232,324	257,153
Goodwill (HEP: $288,991 and $288,991, respectively)	2,331,781	2,331,781
Intangibles and other (HEP: $129,969 and $73,928, respectively)	222,601	188,169
Other assets, total	2,786,706	2,777,103
Total assets	9,071,637	9,230,640
Current liabilities:
Accounts payable (HEP: $11,236 and $17,881, respectively)	926,625	1,108,138
Income taxes payable	39,536	19,642
Accrued liabilities (HEP: $24,304 and $26,321, respectively)	126,292	106,214
Deferred income tax liabilities	0	17,409
Total current liabilities	1,092,453	1,251,403
Long-term debt (HEP: $951,067 and $867,579, respectively)	982,846	1,054,890
Deferred income taxes (HEP: $356 and $367, respectively)	636,437	646,870
Other long-term liabilities (HEP: $58,417 and $47,170, respectively)	178,217	176,758
HollyFrontier stockholders' equity:
Preferred stock, $1.00 par value - 5,000,000 shares authorized; none issued	0	0
Common stock $.01 par value - 320,000,000 shares authorized; 255,962,866 shares issued as of September 30, 2015 and December 31, 2014	2,560	2,560
Additional capital	4,021,774	4,003,628
Retained earnings	3,375,226	2,778,577
Accumulated other comprehensive income	7,167	27,894
Common stock held in treasury, at cost - 70,957,479 and 59,876,776 shares as of September 30, 2015 and December 31, 2014, respectively	(1,785,559)	(1,289,075)
Total HollyFrontier stockholders' equity	5,621,168	5,523,584
Noncontrolling interest	560,516	577,135
Total equity	6,181,684	6,100,719
Total liabilities and equity	$ 9,071,637	$ 9,230,640

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Cash and cash equivalents (HEP: $10,856 and $2,830, respectively)	$ 239,731	$ 567,985
Accounts receivable: Product and transportation (HEP: $32,968 and $40,129, respectively)	495,231	507,040
Materials and supplies (HEP: $1,903 and $1,940, respectively)	137,511	115,027
Prepayments and other (HEP: $2,671 and $2,443, respectively)	73,097	104,148
Properties, plants and equipment, at cost (HEP: $1,316,492 and $1,269,161, respectively)	5,309,079	4,852,441
Less accumulated depreciation (HEP: $(284,590) and $(244,850), respectively)	(1,331,821)	(1,181,902)
Goodwill (HEP: $288,991 and $288,991, respectively)	2,331,781	2,331,781
Intangibles and other (HEP: $129,969 and $73,928, respectively)	222,601	188,169
Accounts payable (HEP: $11,236 and $17,881, respectively)	926,625	1,108,138
Accrued liabilities (HEP: $24,304 and $26,321, respectively)	126,292	106,214
Long-term debt (HEP: $951,067 and $867,579, respectively)	982,846	1,054,890
Deferred income taxes (HEP: $356 and $367, respectively)	636,437	646,870
Other long-term liabilities (HEP: $58,417 and $47,170, respectively)	$ 178,217	$ 176,758
HollyFrontier Stockholders' Equity:
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	320,000,000	320,000,000
Common stock, shares issued	255,962,866	255,962,866
Preferred stock, par value	$ 1	$ 1
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Treasury stock, shares	70,957,479	59,876,776
HEP [Member]
Cash and cash equivalents (HEP: $10,856 and $2,830, respectively)	$ 10,856	$ 2,830
Accounts receivable: Product and transportation (HEP: $32,968 and $40,129, respectively)	32,968	40,129
Materials and supplies (HEP: $1,903 and $1,940, respectively)	1,903	1,940
Prepayments and other (HEP: $2,671 and $2,443, respectively)	2,671	2,443
Properties, plants and equipment, at cost (HEP: $1,316,492 and $1,269,161, respectively)	1,316,492	1,269,161
Less accumulated depreciation (HEP: $(284,590) and $(244,850), respectively)	(284,590)	(244,850)
Goodwill (HEP: $288,991 and $288,991, respectively)	288,991	288,991
Intangibles and other (HEP: $129,969 and $73,928, respectively)	129,969	73,928
Accounts payable (HEP: $11,236 and $17,881, respectively)	11,236	17,881
Accrued liabilities (HEP: $24,304 and $26,321, respectively)	24,304	26,321
Long-term debt (HEP: $951,067 and $867,579, respectively)	951,067	867,579
Deferred income taxes (HEP: $356 and $367, respectively)	356	367
Other long-term liabilities (HEP: $58,417 and $47,170, respectively)	$ 58,417	$ 47,170

Consolidated Statements Of Inco

Consolidated Statements Of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Sales and other revenues	$ 3,585,823	$ 5,317,555	$ 10,294,361	$ 15,481,208
Operating costs and expenses:
Cost of products sold (exclusive of depreciation and amortization)	2,653,859	4,625,893	7,792,707	13,439,359
Lower of cost or market inventory valuation adjustment	225,451	0	83,425	0
Costs of products sold, net	2,879,310	4,625,893	7,876,132	13,439,359
Operating expenses (exclusive of depreciation and amortization)	265,398	280,957	775,159	826,577
General and Administrative Expense	30,746	27,149	86,432	82,437
Depreciation and amortization	87,764	80,945	255,579	262,883
Total operating costs and expenses	3,263,218	5,014,944	8,993,302	14,611,256
Income from operations	322,605	302,611	1,301,059	869,952
Other income (expense):
Earnings (loss) of equity method investments	1,269	(1,247)	(5,907)	(2,956)
Interest income	673	1,004	2,403	3,593
Interest expense	(11,102)	(11,038)	(31,813)	(33,521)
Loss on early extinguishment of debt	0	0	(1,370)	(7,677)
Gain (loss) on sale of assets	7,228	(556)	8,867	(556)
Other income (expense) total	(1,932)	(11,837)	(27,820)	(41,117)
Income before income taxes	320,673	290,774	1,273,239	828,835
Income tax provision (benefit):
Current	215,381	91,867	509,956	294,331
Deferred	(105,315)	11,349	(63,172)	(2,169)
Income tax provision total	110,066	103,216	446,784	292,162
Net income	210,607	187,558	826,455	536,673
Less net income attributable to noncontrolling interest	14,285	12,552	42,433	33,177
Net income attributable to HollyFrontier stockholders	$ 196,322	$ 175,006	$ 784,022	$ 503,496
Earnings per share attributable to HollyFrontier stockholders:
Basic	$ 1.05	$ 0.88	$ 4.09	$ 2.54
Diluted	1.04	0.88	4.09	2.53
Cash dividends declared per common share	$ 0.33	$ 0.82	$ 0.98	$ 2.44
Average number of common shares outstanding:
Basic	187,208	197,261	191,182	197,895
Diluted	187,344	197,535	191,282	198,096

Consolidated Statements Of Comp

Consolidated Statements Of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Net income	$ 210,607	$ 187,558	$ 826,455	$ 536,673
Other comprehensive income (loss)
Unrealized gain (loss) on marketable securities	166	(153)	217	(116)
Reclassification adjustments to net income on sale or maturity of marketable securities	0	(12)	(46)	(13)
Net unrealized gain (loss) on marketable securities	166	(165)	171	(129)
Change in fair value of cash flow hedging instruments	(357)	5,133	(7,590)	143,857
Reclassification adjustments to net income on settlement of cash flow hedging instruments	(9,248)	(13,844)	(27,683)	(31,710)
Amortization of unrealized loss attributable to discontinued cash flow hedges	270	270	810	810
Net unrealized gain (loss) on hedging instruments	(9,335)	(8,441)	(34,463)	112,957
Loss on post-retirement healthcare plan	0	0	0	(89)
Retirement Restoration Plan Loss Reclassified to Net Income	0	422	0	422
Net change in post-retirement benefit obligation	0	422	0	333
Other comprehensive income (loss) before income taxes	(9,169)	(8,184)	(34,292)	113,161
Income tax expense (benefit)	(3,488)	(3,428)	(13,088)	43,694
Other comprehensive income (loss)	(5,681)	(4,756)	(21,204)	69,467
Total comprehensive income	204,926	182,802	805,251	606,140
Less noncontrolling interest in comprehensive income	14,127	13,225	41,956	33,455
Comprehensive income attributable to HollyFrontier stockholders	$ 190,799	$ 169,577	$ 763,295	$ 572,685

Consolidated Statements Of Cash

Consolidated Statements Of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Cash flows from operating activities:
Net income	$ 826,455	$ 536,673
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	255,579	262,883
Lower of cost or market inventory valuation adjustment	83,425	0
Net loss of equity method investments, inclusive of distributions	8,282	5,268
Gain on sale of assets	(8,619)	556
(Gain) loss on early extinguishment of debt due to unamortized premium/discount	(3,788)	1,489
Deferred income taxes	(63,172)	(2,169)
Equity based compensation expense	21,928	20,728
Change in fair value - derivative instruments	17,861	(12,199)
(Increase) decrease in current assets:
Accounts receivable	68,021	8,530
Inventories	(85,318)	(225,698)
Income taxes receivable	11,719	76,488
Prepayments and other	(8,312)	24,719
Increase (decrease) in current liabilities:
Accounts payable	(203,289)	109,912
Income taxes payable	19,894	0
Accrued liabilities	13,503	27,327
Turnaround expenditures	(55,905)	(32,236)
Other, net	5,077	3,662
Net cash provided by operating activities	903,341	805,933
Cash flows from investing activities:
Additions to properties, plants and equipment	(416,611)	(307,476)
Purchase of equity method investment - HEP	54,641
Proceeds from sale of assets	15,831	14,711
Purchases of marketable securities	(402,984)	(762,224)
Sales and maturities of marketable securities	490,251	863,769
Other, net	0	5,021
Net cash used for investing activities	(425,440)	(247,856)
Cash flows from financing activities:
Redemption of senior notes	(155,156)
Purchase of treasury stock	(481,766)	(133,150)
Dividends	(187,372)	(485,766)
Excess tax benefit from equity based compensation	0	4,482
Other, net	(3,495)	(5,059)
Net cash used for financing activities	(806,155)	(642,154)
Cash and cash equivalents:
Increase (decrease) for the period	(328,254)	(84,077)
Beginning of period	567,985	940,103
End of period	239,731	856,026
Cash paid during the period for:
Interest	40,608	45,672
Income taxes	484,516	222,488
HEP [Member]
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	44,869	45,739
Cash flows from investing activities:
Additions to properties, plants and equipment	(57,286)	(61,657)
Purchase of equity method investment - HEP	(54,641)	0
Cash flows from financing activities:
Borrowings under credit agreement - HEP	443,000	538,600
Repayments under credit agreement - HEP	(360,000)	(346,600)
Redemption of senior notes	0	(156,188)
Distributions to noncontrolling interest	(61,366)	$ (58,473)
Cash and cash equivalents:
Beginning of period	2,830
End of period	$ 10,856

Description of Business and Pre

Description of Business and Presentation of Financial Statements	9 Months Ended
	Sep. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description Of Business And Presentation Of Financial Statements	Description of Business and Presentation of Financial Statements References herein to HollyFrontier Corporation (“HollyFrontier”) include HollyFrontier and its consolidated subsidiaries. In accordance with the Securities and Exchange Commission’s (“SEC”) “Plain English” guidelines, this Quarterly Report on Form 10-Q has been written in the first person. In these financial statements, the words “we,” “our,” “ours” and “us” refer only to HollyFrontier and its consolidated subsidiaries or to HollyFrontier or an individual subsidiary and not to any other person, with certain exceptions. Generally, the words “we,” “our,” “ours” and “us” include Holly Energy Partners, L.P. (“HEP”) and its subsidiaries as consolidated subsidiaries of HollyFrontier, unless when used in disclosures of transactions or obligations between HEP and HollyFrontier or its other subsidiaries. These financial statements contain certain disclosures of agreements that are specific to HEP and its consolidated subsidiaries and do not necessarily represent obligations of HollyFrontier. When used in descriptions of agreements and transactions, “HEP” refers to HEP and its consolidated subsidiaries. We are principally an independent petroleum refiner that produces high-value light products such as gasoline, diesel fuel, jet fuel, specialty lubricant products, and specialty and modified asphalt. We own and operate petroleum refineries that serve markets throughout the Mid-Continent, Southwest and Rocky Mountain regions of the United States. As of September 30, 2015 , we: • owned and operated a petroleum refinery in El Dorado, Kansas (the “El Dorado Refinery”), two refinery facilities located in Tulsa, Oklahoma (collectively, the “Tulsa Refineries”), a refinery in Artesia, New Mexico that is operated in conjunction with crude oil distillation and vacuum distillation and other facilities situated 65 miles away in Lovington, New Mexico (collectively, the “Navajo Refinery”), a refinery located in Cheyenne, Wyoming (the “Cheyenne Refinery”) and a refinery in Woods Cross, Utah (the “Woods Cross Refinery”); • owned and operated NK Asphalt Partners (“NK Asphalt”) which operates various asphalt terminals in Arizona, New Mexico and Oklahoma; and • owned a 39% interest in HEP, a consolidated variable interest entity (“VIE”), which includes our 2% general partner interest. HEP owns and operates logistic assets consisting of petroleum product and crude oil pipelines and terminal, tankage and loading rack facilities that principally support our refining and marketing operations in the Mid-Continent, Southwest and Rocky Mountain regions of the United States and Alon USA, Inc.'s (“Alon”) refinery in Big Spring, Texas. Additionally, HEP owns a 75% interest in UNEV Pipeline, LLC (“UNEV”), which owns a 427 -mile, 12 -inch refined products pipeline from Salt Lake City, Utah to Las Vegas, Nevada, together with terminal facilities in the Cedar City, Utah and North Las Vegas areas (the “UNEV Pipeline”); a 50% interest in Frontier Pipeline Company, which owns a 289 -mile crude oil pipeline from Casper, Wyoming to Frontier Station, Utah (the "Frontier Pipeline"); and a 25% interest in SLC Pipeline LLC (the “SLC Pipeline”), which owns a 95 -mile intrastate pipeline system that serves refineries in the Salt Lake City area. We have prepared these consolidated financial statements without audit. In management’s opinion, these consolidated financial statements include all normal recurring adjustments necessary for a fair presentation of our consolidated financial position as of September 30, 2015 , the consolidated results of operations and comprehensive income for the three and nine months ended September 30, 2015 and 2014 and consolidated cash flows for the nine months ended September 30, 2015 and 2014 in accordance with the rules and regulations of the SEC. Although certain notes and other information required by generally accepted accounting principles in the United States (“GAAP”) have been condensed or omitted, we believe that the disclosures in these consolidated financial statements are adequate to make the information presented not misleading. These consolidated financial statements should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2014 that has been filed with the SEC. Our results of operations for the nine months ended September 30, 2015 are not necessarily indicative of the results of operations to be realized for the year ending December 31, 2015 . Accounts Receivable: Our accounts receivable consist of amounts due from customers that are primarily companies in the petroleum industry. Credit is extended based on our evaluation of the customer’s financial condition, and in certain circumstances collateral, such as letters of credit or guarantees, is required. We reserve for doubtful accounts based on our historical loss experience as well as specific accounts identified as high risk, which historically have been minimal. Credit losses are charged to the allowance for doubtful accounts when an account is deemed uncollectible. Our allowance for doubtful accounts was $2.3 million at September 30, 2015 and $2.4 million at December 31, 2014 . Inventories: Inventories are stated at the lower of cost, using the last-in, first-out (“LIFO”) method for crude oil, unfinished and finished refined products and the average cost method for materials and supplies, or market. In periods of rapidly declining prices, LIFO inventories may have to be written down to market value due to the higher costs assigned to LIFO layers in prior periods. In addition, the use of the LIFO inventory method may result in increases or decreases to cost of sales in years that inventory volumes decline as the result of charging cost of sales with LIFO inventory costs generated in prior periods. An actual valuation of inventory under the LIFO method is made at the end of each year based on the inventory levels at that time. Accordingly, interim LIFO calculations are based on management's estimates of expected year-end inventory levels and are subject to the final year-end LIFO inventory valuation. Goodwill: We have goodwill that primarily arose from our merger with Frontier Oil Corporation on July 1, 2011. Goodwill represents the excess of the cost of an acquired entity over the fair value of the assets acquired and liabilities assumed. Goodwill is not subject to amortization and is tested annually or more frequently if events or circumstances indicate the possibility of impairment. As of September 30, 2015 , there have been no impairments to goodwill. We performed our annual goodwill impairment testing as of July 1, 2015, which entailed an assessment of our reporting unit fair values relative to their respective carrying values that were derived using a combination of both income and market approaches. Our income approach utilizes the discounted future expected cash flows. Our market approach, which includes both the guideline public company and guideline transaction methods, utilizes pricing multiples derived from historical market transactions of other like-kind assets. Our discounted cash flows reflect estimates of future cash flows based on both historical and forward crack-spreads, forecasted production levels, operating costs and capital expenditures. Our goodwill is allocated by reporting unit as follows: El Dorado, $1.7 billion ; Cheyenne, $0.3 billion ; and HEP, $0.3 billion . Based on our testing as of July 1, 2015, the fair value of our Cheyenne reporting unit exceeded its carrying cost by approximately 8% . The fair value of our El Dorado and HEP reporting units substantially exceeded their respective carrying values. As of September 30, 2015 , there have been no impairments to goodwill. Historically, the refining industry has experienced significant fluctuations in operating results over an extended business cycle including changes in prices of crude oil and refined products, changes in operating costs including natural gas and higher costs of complying with government regulations. It is reasonably possible that at some future downturn in refining operations that the goodwill related to our Cheyenne Refinery will be determined to be impaired. Such impairment charges could be material. New Accounting Pronouncements Revenue Recognition In May 2014, an accounting standard update (ASU 2014-09, “Revenue from Contracts with Customers”) was issued requiring revenue to be recognized when promised goods or services are transferred to customers in an amount that reflects the expected consideration for these goods or services. This standard has an effective date of January 1, 2018, and we are evaluating the impact of this standard.

Holly Energy Partners

Holly Energy Partners	9 Months Ended
	Sep. 30, 2015
Holly Energy Partners [Abstract]
Holly Energy Partners	HEP, a consolidated VIE, is a publicly held master limited partnership that was formed to acquire, own and operate the petroleum product and crude oil pipeline and terminal, tankage and loading rack facilities that support our refining and marketing operations in the Mid-Continent, Southwest and Rocky Mountain regions of the United States. HEP also owns and operates refined product pipelines and terminals, located primarily in Texas, that serve Alon's refinery in Big Spring, Texas. As of September 30, 2015 , we owned a 39% interest in HEP, including the 2% general partner interest. As the general partner of HEP, we have the sole ability to direct the activities that most significantly impact HEP's financial performance, and therefore we consolidate HEP. See Note 16 for supplemental guarantor/non-guarantor financial information, including HEP balances included in these consolidated financial statements. HEP has two primary customers (including us) and generates revenues by charging tariffs for transporting petroleum products and crude oil though its pipelines, by charging fees for terminalling refined products and other hydrocarbons, and storing and providing other services at its storage tanks and terminals. Under our long-term transportation agreements with HEP (discussed further below), we accounted for 82% of HEP’s total revenues for the nine months ended September 30, 2015 . We do not provide financial or equity support through any liquidity arrangements and / or debt guarantees to HEP. HEP has outstanding debt under a senior secured revolving credit agreement and its senior notes. With the exception of the assets of HEP Logistics Holdings, L.P., one of our wholly-owned subsidiaries and HEP’s general partner, HEP’s creditors have no recourse to our other assets. Any recourse to HEP’s general partner would be limited to the extent of HEP Logistics Holdings, L.P.’s assets, which other than its investment in HEP are not significant. Furthermore, our creditors have no recourse to the assets of HEP and its consolidated subsidiaries. See Note 9 for a description of HEP’s debt obligations. HEP has risk associated with its operations. If a major customer of HEP were to terminate its contracts or fail to meet desired shipping or throughput levels for an extended period of time, revenue would be reduced and HEP could suffer substantial losses to the extent that a new customer is not found. In the event that HEP incurs a loss, our operating results will reflect HEP’s loss, net of intercompany eliminations, to the extent of our ownership interest in HEP at that point in time. Frontier Pipeline Transaction On August 31, 2015, HEP purchased a 50% interest in Frontier Pipeline Company, owner of the Frontier Pipeline, from an affiliate of Enbridge, Inc. for $54.6 million . Frontier Pipeline will continue to be operated by an affiliate of Plains All American Pipeline, L.P., which owns the remaining 50% interest. The 289 -mile crude oil pipeline, which runs from Casper, Wyoming to Frontier Station, Utah, has a 72,000 barrels per day capacity. The Frontier Pipeline supplies Canadian and Rocky Mountain crudes to Salt Lake City area refiners through a connection to the SLC Pipeline. El Dorado Asset Transaction On November 1, 2015, HEP acquired from us newly constructed naphtha fractionation and hydrogen generation units at our El Dorado Refinery for cash consideration of $62.0 million . In connection with this transaction, we entered into 15-year tolling agreements containing minimum quarterly throughput commitments that provide minimum annualized payments to HEP of $15.3 million . Transportation Agreements HEP serves our refineries under long-term pipeline and terminal, tankage and throughput agreements expiring from 2019 through 2026. Under these agreements, we pay HEP fees to transport, store and throughput volumes of refined product and crude oil on HEP's pipeline and terminal, tankage and loading rack facilities that result in minimum annual payments to HEP including UNEV (a consolidated subsidiary of HEP). Under these agreements, the agreed upon tariff rates are subject to annual tariff rate adjustments on July 1 at a rate based upon the percentage change in Producer Price Index or Federal Energy Regulatory Commission index. As of September 30, 2015 , these agreements result in minimum annualized payments to HEP of $236.6 million . Our transactions with HEP including fees paid under our transportation agreements with HEP and UNEV are eliminated and have no impact on our consolidated financial statements.

Financial Instruments

Financial Instruments	9 Months Ended
	Sep. 30, 2015
Financial Instruments, Owned, at Fair Value [Abstract]
Financial Instruments	Financial Instruments Our financial instruments consist of cash and cash equivalents, investments in marketable securities, accounts receivable, accounts payable, debt and derivative instruments. The carrying amounts of cash and cash equivalents, accounts receivable and accounts payable approximate fair value. HEP's outstanding credit agreement borrowings also approximate fair value as interest rates are reset frequently at current interest rates. Fair value measurements are derived using inputs (assumptions that market participants would use in pricing an asset or liability, including assumptions about risk). GAAP categorizes inputs used in fair value measurements into three broad levels as follows: • (Level 1) Quoted prices in active markets for identical assets or liabilities. • (Level 2) Observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets, similar assets and liabilities in markets that are not active or can be corroborated by observable market data. • (Level 3) Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. This includes valuation techniques that involve significant unobservable inputs. The carrying amounts and estimated fair values of investments in marketable securities, derivative instruments and senior notes at September 30, 2015 and December 31, 2014 were as follows: Fair Value by Input Level Financial Instrument Carrying Amount Fair Value Level 1 Level 2 Level 3 (In thousands) September 30, 2015 Assets: Marketable securities $ 387,053 $ 387,053 $ — $ 387,053 $ — NYMEX futures contracts 5,064 5,064 5,064 — — Commodity price swaps 113,956 113,956 — 113,956 — Forward contracts 2,496 2,496 — 2,496 — Total assets $ 508,569 $ 508,569 $ 5,064 $ 503,505 $ — Liabilities: Commodity price swaps $ 140,194 $ 140,194 $ — $ 140,194 $ — HEP senior notes 297,067 288,000 — 288,000 — HEP interest rate swaps 834 834 — 834 — Total liabilities $ 438,095 $ 429,028 $ — $ 429,028 $ — December 31, 2014 Assets: Marketable securities $ 474,110 $ 474,110 $ — $ 474,110 $ — NYMEX futures contracts 17,619 17,619 17,619 — — Commodity price swaps 208,296 208,296 — 208,296 — HEP interest rate swaps 1,019 1,019 — 1,019 — Total assets $ 701,044 $ 701,044 $ 17,619 $ 683,425 $ — Liabilities: Commodity price swaps $ 196,897 $ 196,897 $ — $ 196,897 $ — HollyFrontier senior notes 154,144 155,250 — 155,250 — HEP senior notes 296,579 291,000 — 291,000 — HEP interest rate swaps 1,065 1,065 — 1,065 — Total liabilities $ 648,685 $ 644,212 $ — $ 644,212 $ — Level 1 Financial Instruments Our NYMEX futures contracts are exchange traded and are measured and recorded at fair value using quoted market prices, a Level 1 input. Level 2 Financial Instruments Investments in marketable securities and derivative instruments consisting of commodity price swaps, forward sales and purchase contracts and HEP's interest rate swaps are measured and recorded at fair value using Level 2 inputs. The fair values of the commodity price and interest rate swap contracts are based on the net present value of expected future cash flows related to both variable and fixed rate legs of the respective swap agreements. The measurements are computed using market-based observable inputs, quoted forward commodity prices with respect to our commodity price swaps and the forward London Interbank Offered Rate (“LIBOR”) yield curve with respect to HEP's interest rate swaps. The fair value of the marketable securities and senior notes is based on values provided by a third-party, which were derived using market quotes for similar type instruments, a Level 2 input. Level 3 Financial Instruments We at times have forward commodity sales and purchase contracts for which quoted forward market prices are not readily available. The forward rate used to value these forward sales and purchase contracts are derived using a projected forward rate using quoted market rates for similar products, adjusted for regional pricing and grade differentials, a Level 3 input. The following table presents the changes in fair value of our Level 3 assets and liabilities (all related to derivative instruments) for the three and nine months ended September 30, 2015 and 2014 : Three Months Ended Nine Months Ended Level 3 Financial Instruments 2015 2014 2015 2014 (In thousands) Liability balance at beginning of period $ — $ (75,637 ) $ — $ (35,318 ) Change in fair value: Recognized in other comprehensive income — 178,511 3,852 65,816 Recognized in cost of products sold — 11,085 — 12,970 Settlement date fair value of contractual maturities: Recognized in sales and other revenues — 6,202 (3,852 ) 80,476 Recognized in cost of products sold — (4,251 ) — (8,034 ) Asset balance at end of period $ — $ 115,910 $ — $ 115,910

Earnings Per Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2015
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share Basic earnings per share is calculated as net income attributable to HollyFrontier stockholders divided by the average number of shares of common stock outstanding. Diluted earnings per share assumes, when dilutive, the issuance of the net incremental shares from restricted shares and performance share units. The following is a reconciliation of the components of the basic and diluted per share computations for net income attributable to HollyFrontier stockholders: Three Months Ended Nine Months Ended 2015 2014 2015 2014 (In thousands, except per share data) Net income attributable to HollyFrontier stockholders $ 196,322 $ 175,006 $ 784,022 $ 503,496 Participating securities' share in earnings 567 471 2,245 1,416 Net income attributable to common shares $ 195,755 $ 174,535 $ 781,777 $ 502,080 Average number of shares of common stock outstanding 187,208 197,261 191,182 197,895 Effect of dilutive variable restricted shares and performance share units (1) 136 274 100 201 Average number of shares of common stock outstanding assuming dilution 187,344 197,535 191,282 198,096 Basic earnings per share $ 1.05 $ 0.88 $ 4.09 $ 2.54 Diluted earnings per share $ 1.04 $ 0.88 $ 4.09 $ 2.53 (1) Excludes anti-dilutive restricted and performance share units of: 263 195 335 214

Stock-Based Compensation

Stock-Based Compensation	9 Months Ended
	Sep. 30, 2015
Share-based Compensation [Abstract]
Stock-Based Compensation	Stock-Based Compensation As of September 30, 2015 , we have two principal share-based compensation plans (collectively, the “Long-Term Incentive Compensation Plan”). The compensation cost charged against income for these plans was $6.4 million and $6.0 million for the three months ended September 30, 2015 and 2014 , respectively, and $18.9 million and $18.2 million for the nine months ended September 30, 2015 and 2014 , respectively. Our accounting policy for the recognition of compensation expense for awards with pro-rata vesting is to expense the costs ratably over the vesting periods. Additionally, HEP maintains a share-based compensation plan for Holly Logistic Services, L.L.C.'s non-employee directors and certain executives and employees. Compensation cost attributable to HEP’s share-based compensation plan was $1.3 million and $0.8 million for the three months ended September 30, 2015 and 2014 , respectively, and $3.0 million and $2.5 million for the nine months ended September 30, 2015 and 2014 , respectively. Restricted Stock and Restricted Stock Units Under our Long-Term Incentive Compensation Plan, we grant certain officers and other key employees restricted stock and restricted stock unit awards with awards generally vesting over a period of one to three years. Restricted stock award recipients are generally entitled to all the rights of absolute ownership of the restricted shares from the date of grant including the right to vote the shares and to receive dividends. Upon vesting, restrictions on the restricted shares lapse at which time they convert to common shares. In addition, we grant non-employee directors restricted stock unit awards, which typically vest over a period of one year and are payable in stock. The fair value of each restricted stock and restricted stock unit award is measured based on the grant date market price of our common shares and is amortized over the respective vesting period. A summary of restricted stock and restricted stock unit activity and changes during the nine months ended September 30, 2015 is presented below: Restricted Stock and Restricted Stock Units Grants Weighted Average Grant Date Fair Value Aggregate Intrinsic Value ($000) Outstanding at January 1, 2015 (non-vested) 669,777 $ 44.12 Granted 12,969 40.33 Vesting (transfer/conversion to common stock) (8,699 ) 44.08 Forfeited (16,166 ) 43.83 Outstanding at September 30, 2015 (non-vested) 657,881 $ 44.05 $ 31,920 For the nine months ended September 30, 2015 , 8,699 restricted stock and restricted stock units vested having a grant date fair value of $0.4 million . As of September 30, 2015 , there was $9.8 million of total unrecognized compensation cost related to non-vested restricted stock and restricted stock unit grants. That cost is expected to be recognized over a weighted-average period of 1.1 years. Performance Share Units Under our Long-Term Incentive Compensation Plan, we grant certain officers and other key employees performance share units, which are payable in stock upon meeting certain criteria over the service period, and generally vest over a period of three years. Under the terms of our performance share unit grants, awards are subject to “financial performance” and “market performance” criteria. Financial performance is based on our financial performance compared to a peer group of independent refining companies, while market performance is based on the relative standing of total shareholder return achieved by HollyFrontier compared to peer group companies. The number of shares ultimately issued under these awards can range from zero to 200% of target award amounts. As of September 30, 2015 , estimated share payouts for outstanding non-vested performance share unit awards averaged approximately 33% of target amounts. A summary of performance share unit activity and changes during the nine months ended September 30, 2015 is presented below: Performance Share Units Grants Outstanding at January 1, 2015 (non-vested) 725,054 Granted 4,242 Forfeited (27,131 ) Outstanding at September 30, 2015 (non-vested) 702,165 As of September 30, 2015 , there was $12.4 million of total unrecognized compensation cost related to non-vested performance share units having a grant date fair value of $43.68 per unit. That cost is expected to be recognized over a weighted-average period of 1.3 years.

Cash and Cash Equivalents and I

Cash and Cash Equivalents and Investments in Marketable Securities	9 Months Ended
	Sep. 30, 2015
Cash, Cash Equivalents, and Short-term Investments [Abstract]
Cash And Cash Equivalents And Investments In Marketable Securities	Cash and Cash Equivalents and Investments in Marketable Securities Our investment portfolio at September 30, 2015 consisted of cash, cash equivalents and investments in marketable securities. We currently invest in marketable debt securities with the maximum maturity or put date of any individual issue generally not greater than one year from the date of purchase, which are usually held until maturity. All of these instruments are classified as available-for-sale. As a result, they are reported at fair value using quoted market prices. Interest income is recorded as earned. Unrealized gains and losses, net of related income taxes, are reported as a component of accumulated other comprehensive income. Upon sale or maturity, realized gains on our marketable debt securities are recognized as interest income. These gains are computed based on the specific identification of the underlying cost of the securities, net of unrealized gains and losses previously reported in other comprehensive income. Unrealized gains and losses on our available-for-sale securities are due to changes in market prices and are considered temporary. The following is a summary of our marketable securities: Amortized Cost Gross Unrealized Gain Gross Unrealized Loss Fair Value (Net Carrying Amount) (In thousands) September 30, 2015 Certificates of deposit $ 5,999 $ 4 $ — $ 6,003 Commercial paper 58,299 21 — 58,320 Corporate debt securities 86,657 13 (31 ) 86,639 State and political subdivisions debt securities 236,075 58 (42 ) 236,091 Total marketable securities $ 387,030 $ 96 $ (73 ) $ 387,053 December 31, 2014 Certificates of deposit $ 54,000 $ 10 $ — $ 54,010 Commercial paper 52,297 7 (4 ) 52,300 Corporate debt securities 136,181 1 (94 ) 136,088 State and political subdivisions debt securities 231,819 5 (112 ) 231,712 Total marketable securities $ 474,297 $ 23 $ (210 ) $ 474,110 Interest income recognized on our marketable securities was $0.5 million for both the three months ended September 30, 2015 and 2014 , and $1.4 million and $1.7 million for the nine months ended September 30, 2015 and 2014 , respectively.

Inventories

Inventories	9 Months Ended
	Sep. 30, 2015
Inventory, Net [Abstract]
Inventories	Inventories Inventory consists of the following components: September 30, December 31, 2014 (In thousands) Crude oil $ 540,992 $ 581,592 Other raw materials and unfinished products (1) 175,468 204,467 Finished products (2) 663,956 531,523 Lower of cost or market reserve (480,903 ) (397,478 ) Process chemicals (3) 7,275 4,028 Repair and maintenance supplies and other 130,236 110,999 Total inventory $ 1,037,024 $ 1,035,131 (1) Other raw materials and unfinished products include feedstocks and blendstocks, other than crude. (2) Finished products include gasolines, jet fuels, diesels, lubricants, asphalts, LPG’s and residual fuels. (3) Process chemicals include additives and other chemicals. Inventories, which are valued at the lower of LIFO cost or market, reflect a valuation reserve of $480.9 million and $397.5 million at September 30, 2015 and December 31, 2014 , respectively. The December 31, 2014 market reserve of $397.5 million was reversed due to the sale of inventory quantities that gave rise to the 2014 reserve. A new market reserve of $480.9 million was established as of September 30, 2015 based on market conditions and prices at that time. The effect of the change in lower of cost or market reserve was a $225.5 million and $83.4 million increase to cost of products sold for the three and nine months ended September 30, 2015 , respectively.

Environmental

Environmental	9 Months Ended
	Sep. 30, 2015
Environmental Expense and Liabilities [Abstract]
Environmental	Environmental Environmental costs are charged to operating expenses if they relate to an existing condition caused by past operations and do not contribute to current or future revenue generation. We have ongoing investigations of environmental matters at various locations as part of our assessment process to determine the amount of environmental obligation we may have, if any, with respect to these matters for which we have recorded the estimated cost of the studies. Liabilities are recorded when site restoration and environmental remediation, cleanup and other obligations are either known or considered probable and can be reasonably estimated. Such estimates are undiscounted and require judgment with respect to costs, time frame and extent of required remedial and cleanup activities and are subject to periodic adjustments based on currently available information. Recoveries of environmental costs through insurance, indemnification arrangements or other sources are included in other assets to the extent such recoveries are considered probable. We expensed $3.0 million and zero for the three months ended September 30, 2015 and 2014 , respectively, and $7.6 million and $1.3 million for the nine months ended September 30, 2015 and 2014 , respectively, for environmental remediation obligations. The accrued environmental liability reflected in our consolidated balance sheets was $103.7 million and $104.5 million at September 30, 2015 and December 31, 2014 , respectively, of which $84.0 million and $81.8 million , respectively, were classified as other long-term liabilities. These accruals include remediation and monitoring costs expected to be incurred over an extended period of time (up to 30 years for certain projects). The amount of our accrued liability could increase in the future when the results of ongoing investigations become known, are considered probable and can be reasonably estimated.

Debt

Debt	9 Months Ended
	Sep. 30, 2015
Debt Disclosure [Abstract]
Debt	Debt HollyFrontier Credit Agreement We have a $1 billion senior unsecured revolving credit facility maturing in July 2019 (the “HollyFrontier Credit Agreement”), which may be used for revolving credit loans and letters of credit from time to time and is available to fund general corporate purposes. Indebtedness under the HollyFrontier Credit Agreement is recourse to HollyFrontier and guaranteed by certain of our wholly-owned subsidiaries. At September 30, 2015 , we were in compliance with all covenants, had no outstanding borrowings and had outstanding letters of credit totaling $6.0 million under the HollyFrontier Credit Agreement. HEP Credit Agreement HEP has an $850 million senior secured revolving credit facility that matures in November 2018 (the “HEP Credit Agreement”) and is available to fund capital expenditures, investments, acquisitions, distribution payments and working capital and for general partnership purposes. It is also available to fund letters of credit up to a $50 million sub-limit. At September 30, 2015 , HEP was in compliance with all of its covenants, had outstanding borrowings of $654.0 million and no outstanding letters of credit under the HEP Credit Agreement. In April 2015, HEP amended its credit agreement, increasing the size of the credit facility from $650 million to $850 million . HEP’s obligations under the HEP Credit Agreement are collateralized by substantially all of HEP’s assets. Indebtedness under the HEP Credit Agreement involves recourse to HEP Logistics Holdings, L.P., its general partner, and is guaranteed by HEP’s wholly-owned subsidiaries. Any recourse to the general partner would be limited to the extent of HEP Logistics Holdings, L.P.’s assets, which other than its investment in HEP are not significant. HEP’s creditors have no recourse to our other assets. Furthermore, our creditors have no recourse to the assets of HEP and its consolidated subsidiaries. HollyFrontier Senior Notes In June 2015, we redeemed our $150.0 million aggregate principal amount of 6.875% senior notes maturing November 2018 at a redemption cost of $155.2 million at which time we recognized a $1.4 million early extinguishment loss consisting of a $5.2 million debt redemption premium, net of an unamortized premium of $3.8 million . HollyFrontier Financing Obligation We have a financing obligation that relates to a sale and lease-back of certain crude oil tankage that we sold to an affiliate of Plains All American Pipeline, L.P. (“Plains”) in October 2009 for $40.0 million . Monthly lease payments are recorded as a reduction in principal over the 15 -year lease term ending in 2024. HEP Senior Notes HEP’s 6.5% senior notes ( $300 million aggregate principal amount maturing March 2020 ) (the “HEP Senior Notes”) are unsecured and impose certain restrictive covenants, including limitations on HEP’s ability to incur additional indebtedness, make investments, sell assets, incur certain liens, pay distributions, enter into transactions with affiliates, and enter into mergers. At any time when the HEP Senior Notes are rated investment grade by both Moody’s and Standard & Poor’s and no default or event of default exists, HEP will not be subject to many of the foregoing covenants. Additionally, HEP has certain redemption rights under the HEP Senior Notes. In March 2014, HEP redeemed its $150.0 million aggregate principal amount of 8.25% senior notes maturing March 2018 at a redemption cost of $156.2 million , at which time HEP recognized a $7.7 million early extinguishment loss consisting of a $6.2 million debt redemption premium and unamortized discount and financing costs of $1.5 million . HEP funded the redemption with borrowings under the HEP Credit Agreement. Indebtedness under the HEP Senior Notes involves recourse to HEP Logistics Holdings, L.P., its general partner, and is guaranteed by HEP’s wholly-owned subsidiaries. However, any recourse to the general partner would be limited to the extent of HEP Logistics Holdings, L.P.’s assets, which other than its investment in HEP, are not significant. HEP’s creditors have no recourse to our other assets. Furthermore, our creditors have no recourse to the assets of HEP and its consolidated subsidiaries. The carrying amounts of long-term debt are as follows: September 30, December 31, (In thousands) 6.875% Senior Notes Principal $ — $ 150,000 Unamortized premium — 4,144 — 154,144 Financing Obligation 31,779 33,167 Total HollyFrontier long-term debt 31,779 187,311 HEP Credit Agreement 654,000 571,000 HEP 6.5% Senior Notes Principal 300,000 300,000 Unamortized discount (2,933 ) (3,421 ) 297,067 296,579 Total HEP long-term debt 951,067 867,579 Total long-term debt $ 982,846 $ 1,054,890 We capitalized interest attributable to construction projects of $0.1 million and $2.9 million for the three months ended September 30, 2015 and 2014 , respectively, and $5.5 million and $9.0 million for the nine months ended September 30, 2015 and 2014 , respectively.

Derivative Instruments And Hedg

Derivative Instruments And Hedging Activities	9 Months Ended
	Sep. 30, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments And Hedging Activities	Derivative Instruments and Hedging Activities Commodity Price Risk Management Our primary market risk is commodity price risk. We are exposed to market risks related to the volatility in crude oil and refined products, as well as volatility in the price of natural gas used in our refining operations. We periodically enter into derivative contracts in the form of commodity price swaps, forward purchase and sales and futures contracts to mitigate price exposure with respect to: • our inventory positions; • natural gas purchases; • costs of crude oil and related grade differentials; • prices of refined products; and • our refining margins. Accounting Hedges We have swap contracts serving as cash flow hedges against price risk on forecasted purchases of natural gas and WTI crude oil and forecasted sales of refined product. We also have forward sales contracts that lock in the prices of future sales of refined product. These contracts have been designated as accounting hedges and are measured at fair value with offsetting adjustments (gains/losses) recorded directly to other comprehensive income. These fair value adjustments are later reclassified to earnings as the hedging instruments mature. On a quarterly basis, hedge ineffectiveness is measured by comparing the change in fair value of the swap contracts against the expected future cash inflows/outflows on the respective transaction being hedged. Any hedge ineffectiveness is also recognized in earnings. The following table presents the pre-tax effect on other comprehensive income (“OCI”) and earnings due to fair value adjustments and maturities of commodity price swaps and forward sales under hedge accounting: Unrealized Gain (Loss) Recognized in OCI Gain (Loss) Recognized in Earnings Due to Settlements Gain (Loss) Attributable to Hedge Ineffectiveness Recognized in Earnings Location Amount Location Amount (In thousands) Three Months Ended September 30, 2015 Change in fair value $ 430 Sales and other revenues $ 57,513 Gain reclassified to earnings due to settlements (9,774 ) Cost of products sold (44,023 ) Amortization of discontinued hedges reclassified to earnings 270 Operating expenses (3,986 ) Cost of products sold $ 638 Total $ (9,074 ) $ 9,504 $ 638 Three Months Ended September 30, 2014 Change in fair value $ 4,580 Sales and other revenues $ (6,202 ) Sales and other revenues $ 1,498 Gain reclassified to earnings due to settlements (14,400 ) Cost of products sold 20,776 Cost of products sold (6,189 ) Amortization of discontinued hedges reclassified to earnings 270 Operating expenses (444 ) Operating expenses (99 ) Total $ (9,550 ) $ 14,130 $ (4,790 ) Nine Months Ended September 30, 2015 Change in fair value $ (5,217 ) Sales and other revenues $ 156,445 Sales and other revenues $ (274 ) Gain reclassified to earnings due to settlements (29,268 ) Cost of products sold (115,756 ) Cost of products sold 4,376 Amortization of discontinued hedge reclassified to earnings 810 Operating expenses (12,231 ) Operating expenses 547 Total $ (33,675 ) $ 28,458 $ 4,649 Nine Months Ended September 30, 2014 Change in fair value $ 145,046 Sales and other revenues $ (80,475 ) Sales and other revenues $ 1,498 Gain reclassified to earnings due to settlements (33,357 ) Cost of products sold 111,217 Cost of products sold (6,189 ) Amortization of discontinued hedge reclassified to earnings 810 Operating expenses 1,805 Operating expenses (905 ) Total $ 112,499 $ 32,547 $ (5,596 ) As of September 30, 2015 , we have the following notional contract volumes related to outstanding derivative instruments serving as cash flow hedges against price risk on forecasted purchases of natural gas and crude oil and sales of refined products: Notional Contract Volumes by Year of Maturity Derivative Instrument Total Outstanding Notional 2015 2016 2017 Unit of Measure Natural gas - long 21,600,000 2,400,000 9,600,000 9,600,000 MMBTU WTI crude oil - long 2,760,000 2,760,000 — — Barrels Ultra-low sulfur diesel - short 2,760,000 2,760,000 — — Barrels Forward diesel sales 225,000 225,000 — — Barrels In 2013 , we dedesignated certain commodity price swaps (long positions) that previously received hedge accounting treatment. These contracts now serve as economic hedges against price risk on forecasted natural gas purchases totaling 21,600,000 MMBTU's to be purchased ratably through 2017. As of September 30, 2015 , we have an unrealized loss of $ 2.4 million classified in accumulated other comprehensive income that relates to the application of hedge accounting prior to dedesignation that is amortized as a charge to operating expenses as the contracts mature. Economic Hedges We also have swap contracts that serve as economic hedges (derivatives used for risk management, but not designated as accounting hedges) to fix our purchase price on forecasted purchases of WTI crude oil, and to lock in basis spread differentials on forecasted purchases of crude oil and natural gas. Also, we have NYMEX futures contracts to lock in prices on forecasted purchases of inventory. These contracts are measured at fair value with offsetting adjustments (gains/losses) recorded directly to income. The following table presents the pre-tax effect on income due to maturities and fair value adjustments of our economic hedges: Three Months Ended Nine Months Ended Location of Gain (Loss) Recognized in Income 2015 2014 2015 2014 (In thousands) Cost of products sold $ 13,872 $ 27,773 $ 41,445 $ 3,367 Operating expenses (6,528 ) 3 (7,072 ) (185 ) Total $ 7,344 $ 27,776 $ 34,373 $ 3,182 As of September 30, 2015 , we have the following notional contract volumes related to our outstanding derivative contracts serving as economic hedges: Notional Contract Volumes by Year of Maturity Derivative Instrument Total Outstanding Notional 2015 2016 2017 Unit of Measure Commodity price swap (crude basis spread) - long 5,866,000 1,840,000 4,026,000 — Barrels Commodity price swap (natural gas basis spread) - long 22,626,000 2,010,000 10,308,000 10,308,000 MMBTU Commodity price swap (natural gas) - long 21,600,000 2,400,000 9,600,000 9,600,000 MMBTU Commodity price swap (natural gas) - short 21,600,000 2,400,000 9,600,000 9,600,000 MMBTU NYMEX futures (WTI) - short 1,760,000 1,083,000 677,000 — Barrels Physical contract - short 150,000 150,000 — — Barrels Interest Rate Risk Management HEP uses interest rate swaps to manage its exposure to interest rate risk. As of September 30, 2015 , HEP had three interest rate swap contracts that hedge its exposure to the cash flow risk caused by the effects of LIBOR changes on $305.0 million in credit agreement advances. The first interest rate swap effectively converts $155.0 million of LIBOR based debt to fixed-rate debt having an interest rate of 0.99% plus an applicable margin of 2.00% as of September 30, 2015 , which equaled an effective interest rate of 2.99% . This swap matures in February 2016. HEP has two additional interest rate swaps with identical terms which effectively convert $150.0 million of LIBOR based debt to fixed rate debt having an interest rate of 0.74% plus an applicable margin of 2.00% as of September 30, 2015 , which equaled an effective interest rate of 2.74% . Both of these swap contracts mature in July 2017. All of these swap contracts have been designated as cash flow hedges. To date, there has been no ineffectiveness on these cash flow hedges. The following table presents the pre-tax effect on other comprehensive income and earnings due to fair value adjustments and maturities of HEP's interest rate swaps under hedge accounting: Unrealized Gain (Loss) Recognized in OCI Loss Recognized in Earnings Due to Settlements Location Amount (In thousands) Three Months Ended September 30, 2015 Interest rate swaps Change in fair value $ (787 ) Loss reclassified to earnings due to settlements 526 Interest expense $ (526 ) Total $ (261 ) $ (526 ) Three Months Ended September 30, 2014 Interest rate swaps Change in fair value $ 553 Loss reclassified to earnings due to settlements 556 Interest expense $ (556 ) Total $ 1,109 $ (556 ) Nine Months Ended September 30, 2015 Interest rate swaps Change in fair value $ (2,373 ) Loss reclassified to earnings due to settlements 1,585 Interest expense $ (1,585 ) Total $ (788 ) $ (1,585 ) Nine Months Ended September 30, 2014 Interest rate swaps Change in fair value $ (1,189 ) Loss reclassified to earnings due to settlements 1,647 Interest expense $ (1,647 ) Total $ 458 $ (1,647 ) The following table presents the fair value and balance sheet locations of our outstanding derivative instruments. These amounts are presented on a gross basis with offsetting balances that reconcile to a net asset or liability position in our consolidated balance sheets. We present on a net basis to reflect the net settlement of these positions in accordance with provisions of our master netting arrangements. Derivatives in Net Asset Position Derivatives in Net Liability Position Gross Assets Gross Liabilities Offset in Balance Sheet Net Assets Recognized in Balance Sheet Gross Liabilities Gross Assets Offset in Balance Sheet Net Liabilities Recognized in Balance Sheet (In thousands) September 30, 2015 Derivatives designated as cash flow hedging instruments: Commodity price swap contracts $ 55,850 $ (51,209 ) $ 4,641 $ 41,721 $ (14,851 ) $ 26,870 Forward contracts 2,496 — 2,496 — — — Interest rate swap contracts — — — 834 — 834 $ 58,346 $ (51,209 ) $ 7,137 $ 42,555 $ (14,851 ) $ 27,704 Derivatives not designated as cash flow hedging instruments: Commodity price swap contracts $ 15,781 $ (13,539 ) $ 2,242 $ 33,841 $ (27,590 ) $ 6,251 NYMEX futures contracts 5,064 — 5,064 — — — $ 20,845 $ (13,539 ) $ 7,306 $ 33,841 $ (27,590 ) $ 6,251 Total net balance $ 14,443 $ 33,955 Balance sheet classification: Accrued liabilities $ 6,575 Prepayment and other $ 14,443 Other long-term liabilities 27,380 $ 14,443 $ 33,955 Derivatives in Net Asset Position Derivatives in Net Liability Position Gross Assets Gross Liabilities Offset in Balance Sheet Net Assets Recognized in Balance Sheet Gross Liabilities Gross Assets Offset in Balance Sheet Net Liabilities Recognized in Balance Sheet (In thousands) December 31, 2014 Derivatives designated as cash flow hedging instruments: Commodity price swap contracts $ 173,658 $ (142,115 ) $ 31,543 $ 21,441 $ — $ 21,441 Interest rate swap contracts 1,019 — 1,019 1,065 — 1,065 $ 174,677 $ (142,115 ) $ 32,562 $ 22,506 $ — $ 22,506 Derivatives not designated as cash flow hedging instruments: Commodity price swap contracts $ 17,630 $ (12,942 ) $ 4,688 $ 20,398 $ (17,007 ) $ 3,391 NYMEX futures contracts 17,619 — 17,619 — — — $ 35,249 $ (12,942 ) $ 22,307 $ 20,398 $ (17,007 ) $ 3,391 Total net balance $ 54,869 $ 25,897 Balance sheet classification: Prepayment and other $ 53,850 Intangibles and other 1,019 Other long-term liabilities $ 25,897 $ 54,869 $ 25,897 At September 30, 2015 , we had a pre-tax net unrealized loss of $22.5 million classified in accumulated other comprehensive income that relates to all accounting hedges having contractual maturities through 2017. Assuming commodity prices and interest rates remain unchanged, an unrealized gain of $0.7 million will be effectively transferred from accumulated other comprehensive income into the statement of income as the hedging instruments contractually mature over the next twelve-month period.

Equity

Equity	9 Months Ended
	Sep. 30, 2015
Stockholders' Equity Note [Abstract]
Equity	Equity Changes to equity during the nine months ended September 30, 2015 are presented below: HollyFrontier Stockholders’ Equity Noncontrolling Interest Total Equity (In thousands) Balance at December 31, 2014 $ 5,523,584 $ 577,135 $ 6,100,719 Net income 784,022 42,433 826,455 Dividends (187,372 ) — (187,372 ) Distributions to noncontrolling interest holders — (61,366 ) (61,366 ) Other comprehensive loss, net of tax (20,727 ) (477 ) (21,204 ) Equity-based compensation 18,905 3,023 21,928 Tax attributable to equity-based compensation (1,020 ) — (1,020 ) Purchase of treasury stock (1) (496,224 ) — (496,224 ) Purchase of HEP units for restricted grants — (247 ) (247 ) Other — 15 15 Balance at September 30, 2015 $ 5,621,168 $ 560,516 $ 6,181,684 (1) Includes 3,030 shares withheld under the terms of stock-based compensation agreements to provide funds for the payment of payroll and income taxes due at the vesting of share-based awards. In May 2015, our Board of Directors approved a $1 billion share repurchase program, which replaced all existing share repurchase programs, authorizing us to repurchase common stock in the open market or through privately negotiated transactions. The timing and amount of stock repurchases will depend on market conditions and corporate, regulatory and other relevant considerations. This program may be discontinued at any time by the Board of Directors. As of September 30, 2015 , we had remaining authorization to repurchase up to $559.0 million under this stock repurchase program. In addition, we are authorized by our Board of Directors to repurchase shares in an amount sufficient to offset shares issued under our compensation programs. During the second quarter of 2015, we entered into an accelerated share repurchase agreement (“ASR”) with a large financial institution to repurchase $300.0 million of our outstanding common stock. In May 2015 (at inception), we acquired 5.5 million shares, representing 80% of the amount paid based on then-market prices. The ASR was completed in September 2015, at which time we acquired an additional 1.2 million shares upon settlement. The final market purchase price per share averaged $44.81 , which was based on the volume-weighted average market purchase price of our common stock, less a discount, over the term of the ASR.

Other Comprehensive Income (Los

Other Comprehensive Income (Loss)	9 Months Ended
	Sep. 30, 2015
Other Comprehensive Income (Loss) [Abstract]
Other Comprehensive Income (Loss)	Other Comprehensive Income (Loss) The components and allocated tax effects of other comprehensive income (loss) are as follows: Before-Tax Tax Expense (Benefit) After-Tax (In thousands) Three Months Ended September 30, 2015 Net unrealized gain on marketable securities $ 166 $ 64 $ 102 Net unrealized loss on hedging instruments (9,335 ) (3,552 ) (5,783 ) Other comprehensive loss (9,169 ) (3,488 ) (5,681 ) Less other comprehensive loss attributable to noncontrolling interest (158 ) — (158 ) Other comprehensive loss attributable to HollyFrontier stockholders $ (9,011 ) $ (3,488 ) $ (5,523 ) Three Months Ended September 30, 2014 Net unrealized loss on marketable securities $ (165 ) $ (64 ) $ (101 ) Net unrealized loss on hedging instruments (8,441 ) (3,527 ) (4,914 ) Net change in post-retirement benefit obligations 422 163 259 Other comprehensive loss (8,184 ) (3,428 ) (4,756 ) Less other comprehensive income attributable to noncontrolling interest 673 — 673 Other comprehensive income attributable to HollyFrontier stockholders $ (8,857 ) $ (3,428 ) $ (5,429 ) Nine Months Ended September 30, 2015 Net unrealized gain on marketable securities $ 171 $ 66 $ 105 Net unrealized loss on hedging instruments (34,463 ) (13,154 ) (21,309 ) Other comprehensive loss (34,292 ) (13,088 ) (21,204 ) Less other comprehensive loss attributable to noncontrolling interest (477 ) — (477 ) Other comprehensive loss attributable to HollyFrontier stockholders $ (33,815 ) $ (13,088 ) $ (20,727 ) Nine Months Ended September 30, 2014 Net unrealized loss on marketable securities $ (129 ) $ (50 ) $ (79 ) Net unrealized gain on hedging instruments 112,957 43,616 69,341 Net change in pension and other post-retirement benefit obligations 333 128 205 Other comprehensive income 113,161 43,694 69,467 Less other comprehensive income attributable to noncontrolling interest 278 — 278 Other comprehensive income attributable to HollyFrontier stockholders $ 112,883 $ 43,694 $ 69,189 The following table presents the income statement line item effects for reclassifications out of accumulated other comprehensive income (“AOCI”): AOCI Component Gain (Loss) Reclassified From AOCI Income Statement Line Item (In thousands) Three Months Ended September 30, 2015 2014 Marketable securities $ — $ 12 Interest income — 5 Income tax expense — 7 Net of tax Hedging instruments: Commodity price swaps 57,513 (6,202 ) Sales and other revenues (44,023 ) 20,776 Cost of products sold (3,986 ) (444 ) Operating expenses Interest rate swaps (526 ) (556 ) Interest expense 8,978 13,574 3,598 5,384 Income tax expense 5,380 8,190 Net of tax 319 337 Noncontrolling interest 5,699 8,527 Net of tax and noncontrolling interest Retirement restoration plan — (422 ) General and administrative expenses — (163 ) Income tax benefit — (259 ) Net of tax Total reclassifications for the period $ 5,699 $ 8,275 Nine Months Ended September 30, 2015 2014 Marketable securities $ 4 $ 13 Interest income 42 — Gain on sale of assets 46 13 18 5 Income tax expense 28 8 Net of tax Hedging instruments: Commodity price swaps 156,445 (80,475 ) Sales and other revenues (115,756 ) 111,217 Cost of products sold (12,231 ) 1,805 Operating expenses Interest rate swaps (1,585 ) (1,647 ) Interest expense 26,873 30,900 10,772 12,345 Income tax expense 16,101 18,555 Net of tax 961 998 Noncontrolling interest 17,062 19,553 Net of tax and noncontrolling interest Retirement restoration plan — (422 ) General and administrative expenses — (163 ) Income tax benefit — (259 ) Net of tax Total reclassifications for the period $ 17,090 $ 19,302 Accumulated other comprehensive income in the equity section of our consolidated balance sheets includes: September 30, December 31, (In thousands) Unrealized gain on post-retirement benefit obligations $ 20,689 $ 20,689 Unrealized loss on marketable securities 20 (85 ) Unrealized gain (loss) on hedging instruments, net of noncontrolling interest (13,542 ) 7,290 Accumulated other comprehensive income $ 7,167 $ 27,894

Post-retirement Plan

Post-retirement Plan	9 Months Ended
	Sep. 30, 2015
Pension and Other Postretirement Benefit Expense [Abstract]
Post-retirement Plans	Post-retirement Plans We have a post-retirement healthcare and other benefits plan that is available to certain of our employees who satisfy certain age and service requirements. The net periodic benefit credit of this plan consisted of the following components: Three Months Ended Nine Months Ended 2015 2014 2015 2014 (In thousands) Service cost – benefit earned during the period $ 424 $ 224 $ 1,272 $ 672 Interest cost on projected benefit obligations 205 159 615 478 Amortization of prior service credit (871 ) (1,074 ) (2,613 ) (3,222 ) Amortization of net loss 46 — 138 — Net periodic post-retirement credit $ (196 ) $ (691 ) $ (588 ) $ (2,072 ) Additionally, we had a program that provided transition benefit payments to certain employees that participated in a previously terminated defined benefit plan. The program extended through 2014 and provided payments subsequent to year-end provided the employee was employed by us on the last day of each year. The payments are based on each employee's years of service and eligible salary. Transition benefit costs under this program were $2.6 million for the three months ended September 30, 2014 and $8.1 million for the nine months ended September 30, 2014 . In March 2015, we paid all remaining amounts owed to plan participants of $11.0 million .

Contingencies

Contingencies	9 Months Ended
	Sep. 30, 2015
Loss Contingency [Abstract]
Contingencies	Contingencies We are a party to various litigation and legal proceedings which we believe, based on advice of counsel, will not either individually or in the aggregate have a material adverse effect on our financial condition, results of operations or cash flows. Pursuant to the 2007 Energy Independence and Security Act, the Environmental Protection Agency (“EPA”) promulgated the Renewable Fuel Standard 2 (“RFS2”) regulations reflecting the increased volume of renewable fuels mandated to be blended into the nation's fuel supply. The regulations, in part, require refiners to add annually increasing amounts of “renewable fuels” to their petroleum products or purchase credits, known as renewable identification numbers (“RINs”), in lieu of such blending. The EPA has not yet finalized the 2014 nor the 2015 percentage standards under its RFS2 program. In May 2015, the EPA revised the estimate of 2014 and 2015 percentage standards under its RFS2 program. Accordingly, in the second quarter of 2015, we recorded a $4.1 million reduction of amounts accrued through December 2014. In the third quarter of 2015, the EPA issued a memorandum stating they had made a mistake in their May 2015 estimate that they intend to correct when the 2014 percentage standards are finalized. We recorded a $5.2 million increase to expense during the three months ended September 30, 2015 based on this memorandum. The estimated quantity of renewable fuels or RINs that we are required to purchase and that have been accrued for as of September 30, 2015 and December 31, 2014, as well as for the nine months and year then ended, are based on quantities proposed by the EPA as revised in May 2015. The EPA has indicated that it expects to finalize the 2014 and 2015 percentage requirements in November 2015 that are expected to reflect increases to the previous provisional amounts. Such amounts are not expected to be material.

Segment Information

Segment Information	9 Months Ended
	Sep. 30, 2015
Segment Reporting [Abstract]
Segment Information	Segment Information Our operations are organized into two reportable segments, Refining and HEP. Our operations that are not included in the Refining and HEP segments are included in Corporate and Other. Intersegment transactions are eliminated in our consolidated financial statements and are included in Consolidations and Eliminations. The Refining segment represents the operations of the El Dorado, Tulsa, Navajo, Cheyenne and Woods Cross Refineries and NK Asphalt (aggregated as a reportable segment). Refining activities involve the purchase and refining of crude oil and wholesale and branded marketing of refined products, such as gasoline, diesel fuel and jet fuel. These petroleum products are primarily marketed in the Mid-Continent, Southwest and Rocky Mountain regions of the United States. Additionally, the Refining segment includes specialty lubricant products produced at our Tulsa Refineries that are marketed throughout North America and are distributed in Central and South America. NK Asphalt operates various asphalt terminals in Arizona, New Mexico and Oklahoma. The HEP segment includes all of the operations of HEP, which owns and operates logistics assets consisting of petroleum product and crude oil pipelines and terminal, tankage and loading rack facilities in the Mid-Continent, Southwest and Rocky Mountain regions of the United States. The HEP segment also includes a 75% ownership interest in UNEV (a consolidated subsidiary of HEP) and a 50% and 25% ownership interest in the Frontier Pipeline and the SLC Pipeline, respectively. Revenues from the HEP segment are earned through transactions with unaffiliated parties for pipeline transportation, rental and terminalling operations as well as revenues relating to pipeline transportation services provided for our refining operations. Due to certain basis differences, our reported amounts for the HEP segment may not agree to amounts reported in HEP’s periodic public filings. The accounting policies for our segments are the same as those described in the summary of significant accounting policies in our Annual Report on Form 10-K for the year ended December 31, 2014 . Refining HEP Corporate and Other Consolidations and Eliminations Consolidated Total (In thousands) Three Months Ended September 30, 2015 Sales and other revenues $ 3,571,192 $ 88,389 $ 104 $ (73,862 ) $ 3,585,823 Depreciation and amortization $ 68,976 $ 15,919 $ 3,076 $ (207 ) $ 87,764 Income (loss) from operations $ 310,810 $ 43,702 $ (31,296 ) $ (611 ) $ 322,605 Capital expenditures $ 147,641 $ 7,473 $ 1,870 $ — $ 156,984 Three Months Ended September 30, 2014 Sales and other revenues $ 5,303,053 $ 82,141 $ 181 $ (67,820 ) $ 5,317,555 Depreciation and amortization $ 63,109 $ 15,078 $ 2,965 $ (207 ) $ 80,945 Income (loss) from operations $ 292,132 $ 39,341 $ (28,313 ) $ (549 ) $ 302,611 Capital expenditures $ 98,115 $ 22,875 $ 3,374 $ — $ 124,364 Nine Months Ended September 30, 2015 Sales and other revenues $ 10,246,965 $ 261,624 $ 473 $ (214,701 ) $ 10,294,361 Depreciation and amortization $ 202,686 $ 44,869 $ 8,645 $ (621 ) $ 255,579 Income (loss) from operations $ 1,261,024 $ 128,746 $ (86,984 ) $ (1,727 ) $ 1,301,059 Capital expenditures $ 405,738 $ 57,286 $ 10,873 $ — $ 473,897 Nine Months Ended September 30, 2014 Sales and other revenues $ 15,440,047 $ 244,177 $ 1,802 $ (204,818 ) $ 15,481,208 Depreciation and amortization $ 210,490 $ 45,739 $ 7,275 $ (621 ) $ 262,883 Income (loss) from operations $ 835,555 $ 117,670 $ (81,670 ) $ (1,603 ) $ 869,952 Capital expenditures $ 290,392 $ 61,657 $ 17,084 $ — $ 369,133 Refining HEP Corporate and Other Consolidations and Eliminations Consolidated Total (In thousands) September 30, 2015 Cash, cash equivalents and total investments in marketable securities $ 62 $ 10,856 $ 615,866 $ — $ 626,784 Total assets $ 7,122,334 $ 1,499,260 $ 753,619 $ (303,576 ) $ 9,071,637 Long-term debt $ — $ 951,067 $ 31,779 $ — $ 982,846 December 31, 2014 Cash, cash equivalents and total investments in marketable securities $ 88 $ 2,830 $ 1,039,177 $ — $ 1,042,095 Total assets $ 6,965,245 $ 1,434,572 $ 1,150,865 $ (320,042 ) $ 9,230,640 Long-term debt $ — $ 867,579 $ 187,311 $ — $ 1,054,890 HEP segment revenues from external customers were $14.7 million for both the three months ended September 30, 2015 and 2014 , and $47.4 million and $40.4 million for the nine months ended September 30, 2015 and 2014 , respectively.

Supplemental Guarantor_Non-Guar

Supplemental Guarantor/Non-Guarantor Financial Information	9 Months Ended
	Sep. 30, 2015
Supplemental Guarantor / Non-Guarantor Financial Information [Abstract]
Supplemental Guarantor/Non-Guarantor Financial Information	Supplemental Guarantor/Non-Guarantor Financial Information Any borrowings pursuant to the HollyFrontier Credit Agreement are recourse to HollyFrontier and guaranteed by certain of our wholly-owned subsidiaries (“Guarantor Restricted Subsidiaries”). HEP, in which we have a 39% ownership interest at September 30, 2015 , and its subsidiaries (collectively, “Non-Guarantor Non-Restricted Subsidiaries”), and certain of our other subsidiaries (“Non-Guarantor Restricted Subsidiaries”) have not guaranteed these obligations. The following condensed consolidating financial information is provided for HollyFrontier Corporation (the “Parent”), the Guarantor Restricted Subsidiaries, the Non-Guarantor Restricted Subsidiaries and the Non-Guarantor Non-Restricted Subsidiaries. The information has been presented as if the Parent accounted for its ownership in the Guarantor Restricted Subsidiaries, and the Guarantor Restricted Subsidiaries accounted for the ownership of the Non-Guarantor Restricted Subsidiaries and Non-Guarantor Non-Restricted Subsidiaries, using the equity method of accounting. The Guarantor Restricted Subsidiaries and the Non-Guarantor Restricted Subsidiaries are collectively the “Restricted Subsidiaries.” Condensed Consolidating Balance Sheet September 30, 2015 Parent Guarantor Restricted Subsidiaries Non- Guarantor Restricted Subsidiaries Eliminations HollyFrontier Corp. Before Consolidation of HEP Non-Guarantor Non-Restricted Subsidiaries (HEP Segment) Consolidations and Eliminations Consolidated (In thousands) ASSETS Current assets: Cash and cash equivalents $ 228,849 $ — $ 26 $ — $ 228,875 $ 10,856 $ — $ 239,731 Marketable securities 387,053 — — — 387,053 — — 387,053 Accounts receivable, net 3,542 516,964 2,775 — 523,281 32,968 (33,900 ) 522,349 Intercompany accounts receivable — 1,037,776 466,155 (1,503,931 ) — — — — Inventories — 1,035,121 — — 1,035,121 1,903 — 1,037,024 Deferred income tax assets 48,419 — — — 48,419 — — 48,419 Prepayments and other 8,222 69,150 — — 77,372 2,671 (6,946 ) 73,097 Total current assets 676,085 2,659,011 468,956 (1,503,931 ) 2,300,121 48,398 (40,846 ) 2,307,673 Properties, plants and equip, net 33,404 3,160,133 941 — 3,194,478 1,031,902 (249,122 ) 3,977,258 Investment in subsidiaries 7,199,848 361,459 — (7,561,307 ) — — — — Intangibles and other assets 26,713 2,345,298 25,000 (25,000 ) 2,372,011 418,960 (4,265 ) 2,786,706 Total assets $ 7,936,050 $ 8,525,901 $ 494,897 $ (9,090,238 ) $ 7,866,610 $ 1,499,260 $ (294,233 ) $ 9,071,637 LIABILITIES AND EQUITY Current liabilities: Accounts payable $ 18,350 $ 930,939 $ — $ — $ 949,289 $ 11,236 $ (33,900 ) $ 926,625 Intercompany accounts payable 1,503,931 — — (1,503,931 ) — — — — Income tax payable 39,536 — — — 39,536 — — 39,536 Accrued liabilities 51,481 55,720 1,733 — 108,934 24,304 (6,946 ) 126,292 Total current liabilities 1,613,298 986,659 1,733 (1,503,931 ) 1,097,759 35,540 (40,846 ) 1,092,453 Long-term debt 25,000 31,779 — (25,000 ) 31,779 951,067 — 982,846 Liability to HEP — 224,195 — — 224,195 — (224,195 ) — Deferred income tax liabilities 636,081 — — — 636,081 356 — 636,437 Other long-term liabilities 41,790 83,420 — — 125,210 58,417 (5,410 ) 178,217 Investment in HEP — — 131,705 — 131,705 — (131,705 ) — Equity – HollyFrontier 5,619,881 7,199,848 361,459 (7,561,307 ) 5,619,881 359,136 (357,849 ) 5,621,168 Equity – noncontrolling interest — — — — — 94,744 465,772 560,516 Total liabilities and equity $ 7,936,050 $ 8,525,901 $ 494,897 $ (9,090,238 ) $ 7,866,610 $ 1,499,260 $ (294,233 ) $ 9,071,637 Condensed Consolidating Balance Sheet December 31, 2014 Parent Guarantor Restricted Subsidiaries Non- Guarantor Restricted Subsidiaries Eliminations HollyFrontier Corp. Before Consolidation of HEP Non-Guarantor Non-Restricted Subsidiaries (HEP Segment) Consolidations and Eliminations Consolidated (In thousands) ASSETS Current assets: Cash and cash equivalents $ 565,080 $ — $ 75 $ — $ 565,155 $ 2,830 $ — $ 567,985 Marketable securities 474,068 42 — — 474,110 — — 474,110 Accounts receivable, net 5,107 579,526 3,774 — 588,407 40,129 (38,631 ) 589,905 Intercompany accounts receivable — 171,341 397,540 (568,881 ) — — — — Inventories — 1,033,191 — — 1,033,191 1,940 — 1,035,131 Income taxes receivable 11,719 — — — 11,719 — — 11,719 Prepayments and other 14,734 95,194 — — 109,928 2,443 (8,223 ) 104,148 Total current assets 1,070,708 1,879,294 401,389 (568,881 ) 2,782,510 47,342 (46,854 ) 2,782,998 Properties, plants and equip, net 31,808 2,873,350 902 — 2,906,060 1,024,311 (259,832 ) 3,670,539 Investment in subsidiaries 5,912,233 291,912 — (6,204,145 ) — — — — Intangibles and other assets 30,082 2,388,844 25,000 (25,000 ) 2,418,926 362,919 (4,742 ) 2,777,103 Total assets $ 7,044,831 $ 7,433,400 $ 427,291 $ (6,798,026 ) $ 8,107,496 $ 1,434,572 $ (311,428 ) $ 9,230,640 LIABILITIES AND EQUITY Current liabilities: Accounts payable $ 11,457 $ 1,117,429 $ 2 $ — $ 1,128,888 $ 17,881 $ (38,631 ) $ 1,108,138 Intercompany accounts payable 568,881 — — (568,881 ) — — — — Income taxes payable 19,642 — — — 19,642 — — 19,642 Accrued liabilities 41,403 45,331 1,382 — 88,116 26,321 (8,223 ) 106,214 Deferred income tax liabilities 17,409 — — — 17,409 — — 17,409 Total current liabilities 658,792 1,162,760 1,384 (568,881 ) 1,254,055 44,202 (46,854 ) 1,251,403 Long-term debt 179,144 33,167 — (25,000 ) 187,311 867,579 — 1,054,890 Liability to HEP — 233,217 — — 233,217 — (233,217 ) — Deferred income tax liabilities 646,503 — — — 646,503 367 — 646,870 Other long-term liabilities 43,451 92,023 — — 135,474 47,170 (5,886 ) 176,758 Investment in HEP — — 133,995 — 133,995 — (133,995 ) — Equity – HollyFrontier 5,516,941 5,912,233 291,912 (6,204,145 ) 5,516,941 380,172 (373,529 ) 5,523,584 Equity – noncontrolling interest — — — — — 95,082 482,053 577,135 Total liabilities and equity $ 7,044,831 $ 7,433,400 $ 427,291 $ (6,798,026 ) $ 8,107,496 $ 1,434,572 $ (311,428 ) $ 9,230,640 Condensed Consolidating Statement of Income and Comprehensive Income Three Months Ended September 30, 2015 Parent Guarantor Restricted Subsidiaries Non- Guarantor Restricted Subsidiaries Eliminations HollyFrontier Corp. Before Consolidation of HEP Non-Guarantor Non-Restricted Subsidiaries (HEP Segment) Consolidations and Eliminations Consolidated (In thousands) Sales and other revenues $ 107 $ 3,571,188 $ 1 $ — $ 3,571,296 $ 88,389 $ (73,862 ) $ 3,585,823 Operating costs and expenses: Cost of products sold — 2,726,848 — (91 ) 2,726,757 — (72,898 ) 2,653,859 Lower of cost or market inventory valuation adjustment — 225,451 — — 225,451 — — 225,451 Operating expenses — 239,653 — 796 240,449 25,095 (146 ) 265,398 General and administrative 27,084 680 14 (705 ) 27,073 3,673 — 30,746 Depreciation and amortization 2,861 72,584 8 — 75,453 15,919 (3,608 ) 87,764 Total operating costs and expenses 29,945 3,265,216 22 — 3,295,183 44,687 (76,652 ) 3,263,218 Income (loss) from operations (29,838 ) 305,972 (21 ) — 276,113 43,702 2,790 322,605 Other income (expense): Earnings (loss) of equity method investments 336,756 22,006 21,799 (358,762 ) 21,799 1,269 (21,799 ) 1,269 Interest income (expense) (998 ) 1,740 219 — 961 (9,106 ) (2,284 ) (10,429 ) Gain on sale of assets 16 7,036 — — 7,052 176 — 7,228 335,774 30,782 22,018 (358,762 ) 29,812 (7,661 ) (24,083 ) (1,932 ) Income before income taxes 305,936 336,754 21,997 (358,762 ) 305,925 36,041 (21,293 ) 320,673 Income tax provision 109,997 — — — 109,997 69 — 110,066 Net income 195,939 336,754 21,997 (358,762 ) 195,928 35,972 (21,293 ) 210,607 Less net income attributable to noncontrolling interest — — (9 ) — (9 ) 831 13,463 14,285 Net income attributable to HollyFrontier stockholders $ 195,939 $ 336,754 $ 22,006 $ (358,762 ) $ 195,937 $ 35,141 $ (34,756 ) $ 196,322 Comprehensive income attributable to HollyFrontier stockholders $ 190,414 $ 327,419 $ 21,903 $ (349,322 ) $ 190,414 $ 35,038 $ (34,653 ) $ 190,799 Condensed Consolidating Statement of Income and Comprehensive Income Three Months Ended September 30, 2014 Parent Guarantor Restricted Subsidiaries Non- Guarantor Restricted Subsidiaries Eliminations HollyFrontier Corp. Before Consolidation of HEP Non-Guarantor Non-Restricted Subsidiaries (HEP Segment) Consolidations and Eliminations Consolidated (In thousands) Sales and other revenues $ 103 $ 5,303,131 $ — $ — $ 5,303,234 $ 82,141 $ (67,820 ) $ 5,317,555 Operating costs and expenses: Cost of products sold — 4,692,587 — — 4,692,587 — (66,694 ) 4,625,893 Operating expenses — 255,871 — — 255,871 25,456 (370 ) 280,957 General and administrative 24,904 530 36 (587 ) 24,883 2,266 — 27,149 Depreciation and amortization 2,055 66,832 — 587 69,474 15,078 (3,607 ) 80,945 Total operating costs and expenses 26,959 5,015,820 36 — 5,042,815 42,800 (70,671 ) 5,014,944 Income (loss) from operations (26,856 ) 287,311 (36 ) — 260,419 39,341 2,851 302,611 Other income (expense): Earnings (loss) of equity method investments 305,736 17,021 19,040 (324,884 ) 16,913 880 (19,040 ) (1,247 ) Interest income (expense) (1,227 ) 1,962 144 — 879 (8,585 ) (2,328 ) (10,034 ) Loss on sale of assets — (556 ) — — (556 ) — — (556 ) 304,509 18,427 19,184 (324,884 ) 17,236 (7,705 ) (21,368 ) (11,837 ) Income before income taxes 277,653 305,738 19,148 (324,884 ) 277,655 31,636 (18,517 ) 290,774 Income tax provision 103,174 — — — 103,174 42 — 103,216 Net income 174,479 305,738 19,148 (324,884 ) 174,481 31,594 (18,517 ) 187,558 Less net income attributable to noncontrolling interest — — — — — 1,509 11,043 12,552 Net income attributable to HollyFrontier stockholders $ 174,479 $ 305,738 $ 19,148 $ (324,884 ) $ 174,481 $ 30,085 $ (29,560 ) $ 175,006 Comprehensive income attributable to HollyFrontier stockholders $ 169,050 $ 296,622 $ 19,584 $ (316,206 ) $ 169,050 $ 30,520 $ (29,993 ) $ 169,577 Condensed Consolidating Statement of Income and Comprehensive Income Nine Months Ended Parent Guarantor Restricted Subsidiaries Non- Guarantor Restricted Subsidiaries Eliminations HollyFrontier Corp. Before Consolidation of HEP Non-Guarantor Non-Restricted Subsidiaries (HEP Segment) Consolidations and Eliminations Consolidated (In thousands) Sales and other revenues $ 381 $ 10,247,056 $ 1 $ — $ 10,247,438 $ 261,624 $ (214,701 ) $ 10,294,361 Operating costs and expenses: Cost of products sold — 8,004,718 — (91 ) 8,004,627 — (211,920 ) 7,792,707 Lower of cost or market inventory valuation adjustment — 83,425 — — 83,425 — — 83,425 Operating expenses — 696,446 — 796 697,242 78,350 (433 ) 775,159 General and administrative 75,716 1,666 96 (705 ) 76,773 9,659 — 86,432 Depreciation and amortization 7,769 213,628 24 — 221,421 44,869 (10,711 ) 255,579 Total operating costs and expenses 83,485 8,999,883 120 — 9,083,488 132,878 (223,064 ) 8,993,302 Income (loss) from operations (83,104 ) 1,247,173 (119 ) — 1,163,950 128,746 8,363 1,301,059 Other income (expense): Earnings (loss) of equity method investments 1,314,982 54,375 62,416 (1,377,898 ) 53,875 2,634 (62,416 ) (5,907 ) Interest income (expense) (1,835 ) 5,707 593 — 4,465 (26,926 ) (6,949 ) (29,410 ) Loss on early extinguishment of debt (1,370 ) — — — (1,370 ) — — (1,370 ) Gain on sale of assets 736 7,725 — — 8,461 406 — 8,867 1,312,513 67,807 63,009 (1,377,898 ) 65,431 (23,886 ) (69,365 ) (27,820 ) Income before income taxes 1,229,409 1,314,980 62,890 (1,377,898 ) 1,229,381 104,860 (61,002 ) 1,273,239 Income tax provision 446,678 — — — 446,678 106 — 446,784 Net income 782,731 1,314,980 62,890 (1,377,898 ) 782,703 104,754 (61,002 ) 826,455 Less net income attributable to noncontrolling interest — — (26 ) — (26 ) 6,601 35,858 42,433 Net income attributable to HollyFrontier stockholders $ 782,731 $ 1,314,980 $ 62,916 $ (1,377,898 ) $ 782,729 $ 98,153 $ (96,860 ) $ 784,022 Comprehensive income attributable to HollyFrontier stockholders $ 762,002 $ 1,280,517 $ 62,606 $ (1,343,123 ) $ 762,002 $ 97,843 $ (96,550 ) $ 763,295 Condensed Consolidating Statement of Income and Comprehensive Income Nine Months Ended Parent Guarantor Restricted Subsidiaries Non- Guarantor Restricted Subsidiaries Eliminations HollyFrontier Corp. Before Consolidation of HEP Non-Guarantor Non-Restricted Subsidiaries (HEP Segment) Consolidations and Eliminations Consolidated (In thousands) Sales and other revenues $ 383 $ 15,440,531 $ 935 $ — $ 15,441,849 $ 244,177 $ (204,818 ) $ 15,481,208 Operating costs and expenses: Cost of products sold — 13,640,897 — — 13,640,897 — (201,538 ) 13,439,359 Operating expenses — 754,798 — — 754,798 72,835 (1,056 ) 826,577 General and administrative 70,354 4,038 112 — 74,504 7,933 — 82,437 Depreciation and amortization 5,855 221,999 — — 227,854 45,739 (10,710 ) 262,883 Total operating costs and expenses 76,209 14,621,732 112 — 14,698,053 126,507 (213,304 ) 14,611,256 Income (loss) from operations (75,826 ) 818,799 823 — 743,796 117,670 8,486 869,952 Other income (expense): Earnings (loss) of equity method investments 871,883 47,589 51,455 (924,578 ) 46,349 2,150 (51,455 ) (2,956 ) Interest income (expense) (2,024 ) 6,051 417 — 4,444 (27,365 ) (7,007 ) (29,928 ) Loss on early extinguishment of debt — — — — — (7,677 ) — (7,677 ) Loss on sale of assets — (556 ) — — (556 ) — — (556 ) 869,859 53,084 51,872 (924,578 ) 50,237 (32,892 ) (58,462 ) (41,117 ) Income before income taxes 794,033 871,883 52,695 (924,578 ) 794,033 84,778 (49,976 ) 828,835 Income tax provision 292,017 — — — 292,017 145 — 292,162 Net income 502,016 871,883 52,695 (924,578 ) 502,016 84,633 (49,976 ) 536,673 Less net income attributable to noncontrolling interest — — — — — 6,562 26,615 33,177 Net income attributable to HollyFrontier stockholders $ 502,016 $ 871,883 $ 52,695 $ (924,578 ) $ 502,016 $ 78,071 $ (76,591 ) $ 503,496 Comprehensive income attributable to HollyFrontier stockholders $ 571,205 $ 984,562 $ 52,875 $ (1,037,437 ) $ 571,205 $ 78,250 $ (76,770 ) $ 572,685 Condensed Consolidating Statement of Cash Flows Nine Months Ended Parent Guarantor Restricted Subsidiaries Non- Guarantor Restricted Subsidiaries Eliminations HollyFrontier Corp. Before Consolidation of HEP Non-Guarantor Non-Restricted Subsidiaries (HEP Segment) Consolidations and Eliminations Consolidated (In thousands) Cash flows from operating activities $ (525,515 ) $ 1,257,692 $ 72,388 $ — $ 804,565 $ 165,527 $ (66,751 ) $ 903,341 Cash flows from investing activities Additions to properties, plants and equipment (8,126 ) (408,422 ) (63 ) — (416,611 ) — — (416,611 ) Additions to properties, plants and equipment – HEP — — — — — (57,286 ) — (57,286 ) Purchase interest in equity company — — — — — (54,641 ) — (54,641 ) Proceeds from sale of assets — 15,187 — — 15,187 644 — 15,831 Purchases of marketable securities (402,984 ) — — — (402,984 ) — — (402,984 ) Sales and maturities of marketable securities 490,251 — — — 490,251 — — 490,251 Net advances to Parent — (863,068 ) (72,389 ) 935,457 — — — — 79,141 (1,256,303 ) (72,452 ) 935,457 (314,157 ) (111,283 ) — (425,440 ) Cash flows from financing activities Net borrowings under credit agreement – HEP — — — — — 83,000 — 83,000 Redemption of senior notes - HFC (155,156 ) — — — (155,156 ) — — (155,156 ) Purchase of treasury stock (481,766 ) — — — (481,766 ) — — (481,766 ) Dividends (187,372 ) — — — (187,372 ) — — (187,372 ) Distributions to noncontrolling interest — — — — — (128,117 ) 66,751 (61,366 ) Other, net (1,020 ) (1,389 ) 15 — (2,394 ) (1,101 ) — (3,495 ) Net advances from subsidiaries 935,457 — — (935,457 ) — — — — 110,143 (1,389 ) 15 (935,457 ) (826,688 ) (46,218 ) 66,751 (806,155 ) Cash and cash equivalents Increase (decrease) for the period (336,231 ) — (49 ) — (336,280 ) 8,026 — (328,254 ) Beginning of period 565,080 — 75 — 565,155 2,830 — 567,985 End of period $ 228,849 $ — $ 26 $ — $ 228,875 $ 10,856 $ — $ 239,731 Condensed Consolidating Statement of Cash Flows Nine Months Ended Parent Guarantor Restricted Subsidiaries Non- Guarantor Restricted Subsidiaries Eliminations HollyFrontier Corp. Before Consolidation of HEP Non-Guarantor Non-Restricted Subsidiaries (HEP Segment) Consolidations and Eliminations Consolidated (In thousands) Cash flows from operating activities $ (260,533 ) $ 930,722 $ 55,047 $ — $ 725,236 $ 140,154 $ (59,457 ) $ 805,933 Cash flows from investing activities: Additions to properties, plants and equipment (8,373 ) (298,272 ) (831 ) — (307,476 ) — — (307,476 ) Additions to properties, plants and equipment – HEP — — — — — (61,657 ) — (61,657 ) Proceeds from sale of assets — 14,711 — — 14,711 — — 14,711 Purchases of marketable securities (762,224 ) — — — (762,224 ) — — (762,224 ) Sales and maturities of marketable securities 863,769 — — — 863,769 — — 863,769 Other, net — 5,021 — — 5,021 — — 5,021 Net advances to Parent — (649,294 ) (54,565 ) 703,859 — — — — 93,172 (927,834 ) (55,396 ) 703,859 (186,199 ) (61,657 ) — (247,856 ) Cash flows from financing activities: Net borrowings under credit agreement – HEP — — — — — 192,000 — 192,000 Redemption of senior notes — — — — — (156,188 ) — (156,188 ) Purchase of treasury stock (133,150 ) — — — (133,150 ) — — (133,150 ) Dividends (485,766 ) — — — (485,766 ) — — (485,766 ) Distributions to noncontrolling interest — — — — — (117,930 ) 59,457 (58,473 ) Excess tax benefit from equity-based compensation 4,482 — — — 4,482 — — 4,482 Other, net (3,257 ) (1,231 ) 493 — (3,995 ) (1,064 ) — (5,059 ) Net advances from subsidiaries 703,859 — — (703,859 ) — — — — 86,168 (1,231 ) 493 (703,859 ) (618,429 ) (83,182 ) 59,457 (642,154 ) Cash and cash equivalents Increase (decrease) for the period: (81,193 ) 1,657 144 — (79,392 ) (4,685 ) — (84,077 ) Beginning of period 931,920 1,817 14 — 933,751 6,352 — 940,103 End of period $ 850,727 $ 3,474 $ 158 $ — $ 854,359 $ 1,667 $ — $ 856,026

Description of Business and P23

Description of Business and Presentation of Financial Statements (Policy)	9 Months Ended
	Sep. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accounts Receivable	Accounts Receivable: Our accounts receivable consist of amounts due from customers that are primarily companies in the petroleum industry. Credit is extended based on our evaluation of the customer’s financial condition, and in certain circumstances collateral, such as letters of credit or guarantees, is required. We reserve for doubtful accounts based on our historical loss experience as well as specific accounts identified as high risk, which historically have been minimal. Credit losses are charged to the allowance for doubtful accounts when an account is deemed uncollectible. Our allowance for doubtful accounts was $2.3 million at September 30, 2015 and $2.4 million at December 31, 2014 .
Inventories	Inventories: Inventories are stated at the lower of cost, using the last-in, first-out (“LIFO”) method for crude oil, unfinished and finished refined products and the average cost method for materials and supplies, or market. In periods of rapidly declining prices, LIFO inventories may have to be written down to market value due to the higher costs assigned to LIFO layers in prior periods. In addition, the use of the LIFO inventory method may result in increases or decreases to cost of sales in years that inventory volumes decline as the result of charging cost of sales with LIFO inventory costs generated in prior periods. An actual valuation of inventory under the LIFO method is made at the end of each year based on the inventory levels at that time. Accordingly, interim LIFO calculations are based on management's estimates of expected year-end inventory levels and are subject to the final year-end LIFO inventory valuation.
Goodwill	Goodwill: We have goodwill that primarily arose from our merger with Frontier Oil Corporation on July 1, 2011. Goodwill represents the excess of the cost of an acquired entity over the fair value of the assets acquired and liabilities assumed. Goodwill is not subject to amortization and is tested annually or more frequently if events or circumstances indicate the possibility of impairment. As of September 30, 2015 , there have been no impairments to goodwill. We performed our annual goodwill impairment testing as of July 1, 2015, which entailed an assessment of our reporting unit fair values relative to their respective carrying values that were derived using a combination of both income and market approaches. Our income approach utilizes the discounted future expected cash flows. Our market approach, which includes both the guideline public company and guideline transaction methods, utilizes pricing multiples derived from historical market transactions of other like-kind assets. Our discounted cash flows reflect estimates of future cash flows based on both historical and forward crack-spreads, forecasted production levels, operating costs and capital expenditures. Our goodwill is allocated by reporting unit as follows: El Dorado, $1.7 billion ; Cheyenne, $0.3 billion ; and HEP, $0.3 billion . Based on our testing as of July 1, 2015, the fair value of our Cheyenne reporting unit exceeded its carrying cost by approximately 8% . The fair value of our El Dorado and HEP reporting units substantially exceeded their respective carrying values. As of September 30, 2015 , there have been no impairments to goodwill.
New Accounting Pronouncements	New Accounting Pronouncements Revenue Recognition In May 2014, an accounting standard update (ASU 2014-09, “Revenue from Contracts with Customers”) was issued requiring revenue to be recognized when promised goods or services are transferred to customers in an amount that reflects the expected consideration for these goods or services. This standard has an effective date of January 1, 2018, and we are evaluating the impact of this standard.

Financial Instruments (Tables)

Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2015
Financial Instruments, Owned, at Fair Value [Abstract]
Estimated Fair Values Of Debt Instruments	The carrying amounts and estimated fair values of investments in marketable securities, derivative instruments and senior notes at September 30, 2015 and December 31, 2014 were as follows: Fair Value by Input Level Financial Instrument Carrying Amount Fair Value Level 1 Level 2 Level 3 (In thousands) September 30, 2015 Assets: Marketable securities $ 387,053 $ 387,053 $ — $ 387,053 $ — NYMEX futures contracts 5,064 5,064 5,064 — — Commodity price swaps 113,956 113,956 — 113,956 — Forward contracts 2,496 2,496 — 2,496 — Total assets $ 508,569 $ 508,569 $ 5,064 $ 503,505 $ — Liabilities: Commodity price swaps $ 140,194 $ 140,194 $ — $ 140,194 $ — HEP senior notes 297,067 288,000 — 288,000 — HEP interest rate swaps 834 834 — 834 — Total liabilities $ 438,095 $ 429,028 $ — $ 429,028 $ — December 31, 2014 Assets: Marketable securities $ 474,110 $ 474,110 $ — $ 474,110 $ — NYMEX futures contracts 17,619 17,619 17,619 — — Commodity price swaps 208,296 208,296 — 208,296 — HEP interest rate swaps 1,019 1,019 — 1,019 — Total assets $ 701,044 $ 701,044 $ 17,619 $ 683,425 $ — Liabilities: Commodity price swaps $ 196,897 $ 196,897 $ — $ 196,897 $ — HollyFrontier senior notes 154,144 155,250 — 155,250 — HEP senior notes 296,579 291,000 — 291,000 — HEP interest rate swaps 1,065 1,065 — 1,065 — Total liabilities $ 648,685 $ 644,212 $ — $ 644,212 $ —
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation	The following table presents the changes in fair value of our Level 3 assets and liabilities (all related to derivative instruments) for the three and nine months ended September 30, 2015 and 2014 : Three Months Ended Nine Months Ended Level 3 Financial Instruments 2015 2014 2015 2014 (In thousands) Liability balance at beginning of period $ — $ (75,637 ) $ — $ (35,318 ) Change in fair value: Recognized in other comprehensive income — 178,511 3,852 65,816 Recognized in cost of products sold — 11,085 — 12,970 Settlement date fair value of contractual maturities: Recognized in sales and other revenues — 6,202 (3,852 ) 80,476 Recognized in cost of products sold — (4,251 ) — (8,034 ) Asset balance at end of period $ — $ 115,910 $ — $ 115,910

Earnings Per Share (Tables)

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2015
Earnings Per Share [Abstract]
Schedule Of Earnings Per Share	The following is a reconciliation of the components of the basic and diluted per share computations for net income attributable to HollyFrontier stockholders: Three Months Ended Nine Months Ended 2015 2014 2015 2014 (In thousands, except per share data) Net income attributable to HollyFrontier stockholders $ 196,322 $ 175,006 $ 784,022 $ 503,496 Participating securities' share in earnings 567 471 2,245 1,416 Net income attributable to common shares $ 195,755 $ 174,535 $ 781,777 $ 502,080 Average number of shares of common stock outstanding 187,208 197,261 191,182 197,895 Effect of dilutive variable restricted shares and performance share units (1) 136 274 100 201 Average number of shares of common stock outstanding assuming dilution 187,344 197,535 191,282 198,096 Basic earnings per share $ 1.05 $ 0.88 $ 4.09 $ 2.54 Diluted earnings per share $ 1.04 $ 0.88 $ 4.09 $ 2.53 (1) Excludes anti-dilutive restricted and performance share units of: 263 195 335 214

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2015
Share-based Compensation [Abstract]
Summary Of Restricted Stock Activity	A summary of restricted stock and restricted stock unit activity and changes during the nine months ended September 30, 2015 is presented below: Restricted Stock and Restricted Stock Units Grants Weighted Average Grant Date Fair Value Aggregate Intrinsic Value ($000) Outstanding at January 1, 2015 (non-vested) 669,777 $ 44.12 Granted 12,969 40.33 Vesting (transfer/conversion to common stock) (8,699 ) 44.08 Forfeited (16,166 ) 43.83 Outstanding at September 30, 2015 (non-vested) 657,881 $ 44.05 $ 31,920
Summary Of Performance Share Unit Activity	A summary of performance share unit activity and changes during the nine months ended September 30, 2015 is presented below: Performance Share Units Grants Outstanding at January 1, 2015 (non-vested) 725,054 Granted 4,242 Forfeited (27,131 ) Outstanding at September 30, 2015 (non-vested) 702,165

Cash and Cash Equivalents and27

Cash and Cash Equivalents and Investments in Marketable Securities (Tables)	9 Months Ended
	Sep. 30, 2015
Cash, Cash Equivalents, and Short-term Investments [Abstract]
Available-For-Sale Securities	The following is a summary of our marketable securities: Amortized Cost Gross Unrealized Gain Gross Unrealized Loss Fair Value (Net Carrying Amount) (In thousands) September 30, 2015 Certificates of deposit $ 5,999 $ 4 $ — $ 6,003 Commercial paper 58,299 21 — 58,320 Corporate debt securities 86,657 13 (31 ) 86,639 State and political subdivisions debt securities 236,075 58 (42 ) 236,091 Total marketable securities $ 387,030 $ 96 $ (73 ) $ 387,053 December 31, 2014 Certificates of deposit $ 54,000 $ 10 $ — $ 54,010 Commercial paper 52,297 7 (4 ) 52,300 Corporate debt securities 136,181 1 (94 ) 136,088 State and political subdivisions debt securities 231,819 5 (112 ) 231,712 Total marketable securities $ 474,297 $ 23 $ (210 ) $ 474,110

Inventories (Tables)

Inventories (Tables)	9 Months Ended
	Sep. 30, 2015
Inventory, Net [Abstract]
Inventory Components	Inventory consists of the following components: September 30, December 31, 2014 (In thousands) Crude oil $ 540,992 $ 581,592 Other raw materials and unfinished products (1) 175,468 204,467 Finished products (2) 663,956 531,523 Lower of cost or market reserve (480,903 ) (397,478 ) Process chemicals (3) 7,275 4,028 Repair and maintenance supplies and other 130,236 110,999 Total inventory $ 1,037,024 $ 1,035,131 (1) Other raw materials and unfinished products include feedstocks and blendstocks, other than crude. (2) Finished products include gasolines, jet fuels, diesels, lubricants, asphalts, LPG’s and residual fuels. (3) Process chemicals include additives and other chemicals.

Debt (Tables)

Debt (Tables)	9 Months Ended
	Sep. 30, 2015
Debt Disclosure [Abstract]
Carrying Amounts Of Long-Term Debt	The carrying amounts of long-term debt are as follows: September 30, December 31, (In thousands) 6.875% Senior Notes Principal $ — $ 150,000 Unamortized premium — 4,144 — 154,144 Financing Obligation 31,779 33,167 Total HollyFrontier long-term debt 31,779 187,311 HEP Credit Agreement 654,000 571,000 HEP 6.5% Senior Notes Principal 300,000 300,000 Unamortized discount (2,933 ) (3,421 ) 297,067 296,579 Total HEP long-term debt 951,067 867,579 Total long-term debt $ 982,846 $ 1,054,890

Derivative Instruments And He30

Derivative Instruments And Hedging Activities (Tables)	9 Months Ended
	Sep. 30, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance	The following table presents the pre-tax effect on other comprehensive income (“OCI”) and earnings due to fair value adjustments and maturities of commodity price swaps and forward sales under hedge accounting: Unrealized Gain (Loss) Recognized in OCI Gain (Loss) Recognized in Earnings Due to Settlements Gain (Loss) Attributable to Hedge Ineffectiveness Recognized in Earnings Location Amount Location Amount (In thousands) Three Months Ended September 30, 2015 Change in fair value $ 430 Sales and other revenues $ 57,513 Gain reclassified to earnings due to settlements (9,774 ) Cost of products sold (44,023 ) Amortization of discontinued hedges reclassified to earnings 270 Operating expenses (3,986 ) Cost of products sold $ 638 Total $ (9,074 ) $ 9,504 $ 638 Three Months Ended September 30, 2014 Change in fair value $ 4,580 Sales and other revenues $ (6,202 ) Sales and other revenues $ 1,498 Gain reclassified to earnings due to settlements (14,400 ) Cost of products sold 20,776 Cost of products sold (6,189 ) Amortization of discontinued hedges reclassified to earnings 270 Operating expenses (444 ) Operating expenses (99 ) Total $ (9,550 ) $ 14,130 $ (4,790 ) Nine Months Ended September 30, 2015 Change in fair value $ (5,217 ) Sales and other revenues $ 156,445 Sales and other revenues $ (274 ) Gain reclassified to earnings due to settlements (29,268 ) Cost of products sold (115,756 ) Cost of products sold 4,376 Amortization of discontinued hedge reclassified to earnings 810 Operating expenses (12,231 ) Operating expenses 547 Total $ (33,675 ) $ 28,458 $ 4,649 Nine Months Ended September 30, 2014 Change in fair value $ 145,046 Sales and other revenues $ (80,475 ) Sales and other revenues $ 1,498 Gain reclassified to earnings due to settlements (33,357 ) Cost of products sold 111,217 Cost of products sold (6,189 ) Amortization of discontinued hedge reclassified to earnings 810 Operating expenses 1,805 Operating expenses (905 ) Total $ 112,499 $ 32,547 $ (5,596 )
Schedule of Notional Amounts of Outstanding Derivatives Serving as Cash Flow Hedges	As of September 30, 2015 , we have the following notional contract volumes related to outstanding derivative instruments serving as cash flow hedges against price risk on forecasted purchases of natural gas and crude oil and sales of refined products: Notional Contract Volumes by Year of Maturity Derivative Instrument Total Outstanding Notional 2015 2016 2017 Unit of Measure Natural gas - long 21,600,000 2,400,000 9,600,000 9,600,000 MMBTU WTI crude oil - long 2,760,000 2,760,000 — — Barrels Ultra-low sulfur diesel - short 2,760,000 2,760,000 — — Barrels Forward diesel sales 225,000 225,000 — — Barrels
Schedule of Realized Gain (Loss)	The following table presents the pre-tax effect on income due to maturities and fair value adjustments of our economic hedges: Three Months Ended Nine Months Ended Location of Gain (Loss) Recognized in Income 2015 2014 2015 2014 (In thousands) Cost of products sold $ 13,872 $ 27,773 $ 41,445 $ 3,367 Operating expenses (6,528 ) 3 (7,072 ) (185 ) Total $ 7,344 $ 27,776 $ 34,373 $ 3,182
Schedule of Notional Amounts of Outstanding Derivatives Serving as Economic Hedges	As of September 30, 2015 , we have the following notional contract volumes related to our outstanding derivative contracts serving as economic hedges: Notional Contract Volumes by Year of Maturity Derivative Instrument Total Outstanding Notional 2015 2016 2017 Unit of Measure Commodity price swap (crude basis spread) - long 5,866,000 1,840,000 4,026,000 — Barrels Commodity price swap (natural gas basis spread) - long 22,626,000 2,010,000 10,308,000 10,308,000 MMBTU Commodity price swap (natural gas) - long 21,600,000 2,400,000 9,600,000 9,600,000 MMBTU Commodity price swap (natural gas) - short 21,600,000 2,400,000 9,600,000 9,600,000 MMBTU NYMEX futures (WTI) - short 1,760,000 1,083,000 677,000 — Barrels Physical contract - short 150,000 150,000 — — Barrels
Schedule of Interest Rate Hedges	The following table presents the pre-tax effect on other comprehensive income and earnings due to fair value adjustments and maturities of HEP's interest rate swaps under hedge accounting: Unrealized Gain (Loss) Recognized in OCI Loss Recognized in Earnings Due to Settlements Location Amount (In thousands) Three Months Ended September 30, 2015 Interest rate swaps Change in fair value $ (787 ) Loss reclassified to earnings due to settlements 526 Interest expense $ (526 ) Total $ (261 ) $ (526 ) Three Months Ended September 30, 2014 Interest rate swaps Change in fair value $ 553 Loss reclassified to earnings due to settlements 556 Interest expense $ (556 ) Total $ 1,109 $ (556 ) Nine Months Ended September 30, 2015 Interest rate swaps Change in fair value $ (2,373 ) Loss reclassified to earnings due to settlements 1,585 Interest expense $ (1,585 ) Total $ (788 ) $ (1,585 ) Nine Months Ended September 30, 2014 Interest rate swaps Change in fair value $ (1,189 ) Loss reclassified to earnings due to settlements 1,647 Interest expense $ (1,647 ) Total $ 458 $ (1,647 )
Schedule of Fair Value and Balance Sheet Location of Outstanding Derivatives	The following table presents the fair value and balance sheet locations of our outstanding derivative instruments. These amounts are presented on a gross basis with offsetting balances that reconcile to a net asset or liability position in our consolidated balance sheets. We present on a net basis to reflect the net settlement of these positions in accordance with provisions of our master netting arrangements. Derivatives in Net Asset Position Derivatives in Net Liability Position Gross Assets Gross Liabilities Offset in Balance Sheet Net Assets Recognized in Balance Sheet Gross Liabilities Gross Assets Offset in Balance Sheet Net Liabilities Recognized in Balance Sheet (In thousands) September 30, 2015 Derivatives designated as cash flow hedging instruments: Commodity price swap contracts $ 55,850 $ (51,209 ) $ 4,641 $ 41,721 $ (14,851 ) $ 26,870 Forward contracts 2,496 — 2,496 — — — Interest rate swap contracts — — — 834 — 834 $ 58,346 $ (51,209 ) $ 7,137 $ 42,555 $ (14,851 ) $ 27,704 Derivatives not designated as cash flow hedging instruments: Commodity price swap contracts $ 15,781 $ (13,539 ) $ 2,242 $ 33,841 $ (27,590 ) $ 6,251 NYMEX futures contracts 5,064 — 5,064 — — — $ 20,845 $ (13,539 ) $ 7,306 $ 33,841 $ (27,590 ) $ 6,251 Total net balance $ 14,443 $ 33,955 Balance sheet classification: Accrued liabilities $ 6,575 Prepayment and other $ 14,443 Other long-term liabilities 27,380 $ 14,443 $ 33,955 Derivatives in Net Asset Position Derivatives in Net Liability Position Gross Assets Gross Liabilities Offset in Balance Sheet Net Assets Recognized in Balance Sheet Gross Liabilities Gross Assets Offset in Balance Sheet Net Liabilities Recognized in Balance Sheet (In thousands) December 31, 2014 Derivatives designated as cash flow hedging instruments: Commodity price swap contracts $ 173,658 $ (142,115 ) $ 31,543 $ 21,441 $ — $ 21,441 Interest rate swap contracts 1,019 — 1,019 1,065 — 1,065 $ 174,677 $ (142,115 ) $ 32,562 $ 22,506 $ — $ 22,506 Derivatives not designated as cash flow hedging instruments: Commodity price swap contracts $ 17,630 $ (12,942 ) $ 4,688 $ 20,398 $ (17,007 ) $ 3,391 NYMEX futures contracts 17,619 — 17,619 — — — $ 35,249 $ (12,942 ) $ 22,307 $ 20,398 $ (17,007 ) $ 3,391 Total net balance $ 54,869 $ 25,897 Balance sheet classification: Prepayment and other $ 53,850 Intangibles and other 1,019 Other long-term liabilities $ 25,897 $ 54,869 $ 25,897

Equity (Tables)

Equity (Tables)	9 Months Ended
	Sep. 30, 2015
Stockholders' Equity Note [Abstract]
Changes To Equity	Changes to equity during the nine months ended September 30, 2015 are presented below: HollyFrontier Stockholders’ Equity Noncontrolling Interest Total Equity (In thousands) Balance at December 31, 2014 $ 5,523,584 $ 577,135 $ 6,100,719 Net income 784,022 42,433 826,455 Dividends (187,372 ) — (187,372 ) Distributions to noncontrolling interest holders — (61,366 ) (61,366 ) Other comprehensive loss, net of tax (20,727 ) (477 ) (21,204 ) Equity-based compensation 18,905 3,023 21,928 Tax attributable to equity-based compensation (1,020 ) — (1,020 ) Purchase of treasury stock (1) (496,224 ) — (496,224 ) Purchase of HEP units for restricted grants — (247 ) (247 ) Other — 15 15 Balance at September 30, 2015 $ 5,621,168 $ 560,516 $ 6,181,684 (1) Includes 3,030 shares withheld under the terms of stock-based compensation agreements to provide funds for the payment of payroll and income taxes due at the vesting of share-based awards.

Other Comprehensive Income (L32

Other Comprehensive Income (Loss) (Tables)	9 Months Ended
	Sep. 30, 2015
Other Comprehensive Income (Loss) [Abstract]
Components And Allocated Tax Effects Of Other Comprehensive Income (Loss)	The components and allocated tax effects of other comprehensive income (loss) are as follows: Before-Tax Tax Expense (Benefit) After-Tax (In thousands) Three Months Ended September 30, 2015 Net unrealized gain on marketable securities $ 166 $ 64 $ 102 Net unrealized loss on hedging instruments (9,335 ) (3,552 ) (5,783 ) Other comprehensive loss (9,169 ) (3,488 ) (5,681 ) Less other comprehensive loss attributable to noncontrolling interest (158 ) — (158 ) Other comprehensive loss attributable to HollyFrontier stockholders $ (9,011 ) $ (3,488 ) $ (5,523 ) Three Months Ended September 30, 2014 Net unrealized loss on marketable securities $ (165 ) $ (64 ) $ (101 ) Net unrealized loss on hedging instruments (8,441 ) (3,527 ) (4,914 ) Net change in post-retirement benefit obligations 422 163 259 Other comprehensive loss (8,184 ) (3,428 ) (4,756 ) Less other comprehensive income attributable to noncontrolling interest 673 — 673 Other comprehensive income attributable to HollyFrontier stockholders $ (8,857 ) $ (3,428 ) $ (5,429 ) Nine Months Ended September 30, 2015 Net unrealized gain on marketable securities $ 171 $ 66 $ 105 Net unrealized loss on hedging instruments (34,463 ) (13,154 ) (21,309 ) Other comprehensive loss (34,292 ) (13,088 ) (21,204 ) Less other comprehensive loss attributable to noncontrolling interest (477 ) — (477 ) Other comprehensive loss attributable to HollyFrontier stockholders $ (33,815 ) $ (13,088 ) $ (20,727 ) Nine Months Ended September 30, 2014 Net unrealized loss on marketable securities $ (129 ) $ (50 ) $ (79 ) Net unrealized gain on hedging instruments 112,957 43,616 69,341 Net change in pension and other post-retirement benefit obligations 333 128 205 Other comprehensive income 113,161 43,694 69,467 Less other comprehensive income attributable to noncontrolling interest 278 — 278 Other comprehensive income attributable to HollyFrontier stockholders $ 112,883 $ 43,694 $ 69,189
Reclassifications from Other Comprehensive Income to Income Statement	The following table presents the income statement line item effects for reclassifications out of accumulated other comprehensive income (“AOCI”): AOCI Component Gain (Loss) Reclassified From AOCI Income Statement Line Item (In thousands) Three Months Ended September 30, 2015 2014 Marketable securities $ — $ 12 Interest income — 5 Income tax expense — 7 Net of tax Hedging instruments: Commodity price swaps 57,513 (6,202 ) Sales and other revenues (44,023 ) 20,776 Cost of products sold (3,986 ) (444 ) Operating expenses Interest rate swaps (526 ) (556 ) Interest expense 8,978 13,574 3,598 5,384 Income tax expense 5,380 8,190 Net of tax 319 337 Noncontrolling interest 5,699 8,527 Net of tax and noncontrolling interest Retirement restoration plan — (422 ) General and administrative expenses — (163 ) Income tax benefit — (259 ) Net of tax Total reclassifications for the period $ 5,699 $ 8,275 Nine Months Ended September 30, 2015 2014 Marketable securities $ 4 $ 13 Interest income 42 — Gain on sale of assets 46 13 18 5 Income tax expense 28 8 Net of tax Hedging instruments: Commodity price swaps 156,445 (80,475 ) Sales and other revenues (115,756 ) 111,217 Cost of products sold (12,231 ) 1,805 Operating expenses Interest rate swaps (1,585 ) (1,647 ) Interest expense 26,873 30,900 10,772 12,345 Income tax expense 16,101 18,555 Net of tax 961 998 Noncontrolling interest 17,062 19,553 Net of tax and noncontrolling interest Retirement restoration plan — (422 ) General and administrative expenses — (163 ) Income tax benefit — (259 ) Net of tax Total reclassifications for the period $ 17,090 $ 19,302
Accumulated Other Comprehensive Loss In Equity	Accumulated other comprehensive income in the equity section of our consolidated balance sheets includes: September 30, December 31, (In thousands) Unrealized gain on post-retirement benefit obligations $ 20,689 $ 20,689 Unrealized loss on marketable securities 20 (85 ) Unrealized gain (loss) on hedging instruments, net of noncontrolling interest (13,542 ) 7,290 Accumulated other comprehensive income $ 7,167 $ 27,894

Post-retirement Plan (Tables)

Post-retirement Plan (Tables)	9 Months Ended
	Sep. 30, 2015
Pension and Other Postretirement Benefit Expense [Abstract]
Net Periodic Pension Expense	The net periodic benefit credit of this plan consisted of the following components: Three Months Ended Nine Months Ended 2015 2014 2015 2014 (In thousands) Service cost – benefit earned during the period $ 424 $ 224 $ 1,272 $ 672 Interest cost on projected benefit obligations 205 159 615 478 Amortization of prior service credit (871 ) (1,074 ) (2,613 ) (3,222 ) Amortization of net loss 46 — 138 — Net periodic post-retirement credit $ (196 ) $ (691 ) $ (588 ) $ (2,072 )

Segment Information (Tables)

Segment Information (Tables)	9 Months Ended
	Sep. 30, 2015
Segment Reporting [Abstract]
Schedule Of Segment Reporting Information	Refining HEP Corporate and Other Consolidations and Eliminations Consolidated Total (In thousands) Three Months Ended September 30, 2015 Sales and other revenues $ 3,571,192 $ 88,389 $ 104 $ (73,862 ) $ 3,585,823 Depreciation and amortization $ 68,976 $ 15,919 $ 3,076 $ (207 ) $ 87,764 Income (loss) from operations $ 310,810 $ 43,702 $ (31,296 ) $ (611 ) $ 322,605 Capital expenditures $ 147,641 $ 7,473 $ 1,870 $ — $ 156,984 Three Months Ended September 30, 2014 Sales and other revenues $ 5,303,053 $ 82,141 $ 181 $ (67,820 ) $ 5,317,555 Depreciation and amortization $ 63,109 $ 15,078 $ 2,965 $ (207 ) $ 80,945 Income (loss) from operations $ 292,132 $ 39,341 $ (28,313 ) $ (549 ) $ 302,611 Capital expenditures $ 98,115 $ 22,875 $ 3,374 $ — $ 124,364 Nine Months Ended September 30, 2015 Sales and other revenues $ 10,246,965 $ 261,624 $ 473 $ (214,701 ) $ 10,294,361 Depreciation and amortization $ 202,686 $ 44,869 $ 8,645 $ (621 ) $ 255,579 Income (loss) from operations $ 1,261,024 $ 128,746 $ (86,984 ) $ (1,727 ) $ 1,301,059 Capital expenditures $ 405,738 $ 57,286 $ 10,873 $ — $ 473,897 Nine Months Ended September 30, 2014 Sales and other revenues $ 15,440,047 $ 244,177 $ 1,802 $ (204,818 ) $ 15,481,208 Depreciation and amortization $ 210,490 $ 45,739 $ 7,275 $ (621 ) $ 262,883 Income (loss) from operations $ 835,555 $ 117,670 $ (81,670 ) $ (1,603 ) $ 869,952 Capital expenditures $ 290,392 $ 61,657 $ 17,084 $ — $ 369,133 Refining HEP Corporate and Other Consolidations and Eliminations Consolidated Total (In thousands) September 30, 2015 Cash, cash equivalents and total investments in marketable securities $ 62 $ 10,856 $ 615,866 $ — $ 626,784 Total assets $ 7,122,334 $ 1,499,260 $ 753,619 $ (303,576 ) $ 9,071,637 Long-term debt $ — $ 951,067 $ 31,779 $ — $ 982,846 December 31, 2014 Cash, cash equivalents and total investments in marketable securities $ 88 $ 2,830 $ 1,039,177 $ — $ 1,042,095 Total assets $ 6,965,245 $ 1,434,572 $ 1,150,865 $ (320,042 ) $ 9,230,640 Long-term debt $ — $ 867,579 $ 187,311 $ — $ 1,054,890

Supplemental Guarantor_Non-Gu35

Supplemental Guarantor/Non-Guarantor Financial Information (Tables)	9 Months Ended
	Sep. 30, 2015
Supplemental Guarantor / Non-Guarantor Financial Information [Abstract]
Condensed Consolidating Balance Sheet	Condensed Consolidating Balance Sheet September 30, 2015 Parent Guarantor Restricted Subsidiaries Non- Guarantor Restricted Subsidiaries Eliminations HollyFrontier Corp. Before Consolidation of HEP Non-Guarantor Non-Restricted Subsidiaries (HEP Segment) Consolidations and Eliminations Consolidated (In thousands) ASSETS Current assets: Cash and cash equivalents $ 228,849 $ — $ 26 $ — $ 228,875 $ 10,856 $ — $ 239,731 Marketable securities 387,053 — — — 387,053 — — 387,053 Accounts receivable, net 3,542 516,964 2,775 — 523,281 32,968 (33,900 ) 522,349 Intercompany accounts receivable — 1,037,776 466,155 (1,503,931 ) — — — — Inventories — 1,035,121 — — 1,035,121 1,903 — 1,037,024 Deferred income tax assets 48,419 — — — 48,419 — — 48,419 Prepayments and other 8,222 69,150 — — 77,372 2,671 (6,946 ) 73,097 Total current assets 676,085 2,659,011 468,956 (1,503,931 ) 2,300,121 48,398 (40,846 ) 2,307,673 Properties, plants and equip, net 33,404 3,160,133 941 — 3,194,478 1,031,902 (249,122 ) 3,977,258 Investment in subsidiaries 7,199,848 361,459 — (7,561,307 ) — — — — Intangibles and other assets 26,713 2,345,298 25,000 (25,000 ) 2,372,011 418,960 (4,265 ) 2,786,706 Total assets $ 7,936,050 $ 8,525,901 $ 494,897 $ (9,090,238 ) $ 7,866,610 $ 1,499,260 $ (294,233 ) $ 9,071,637 LIABILITIES AND EQUITY Current liabilities: Accounts payable $ 18,350 $ 930,939 $ — $ — $ 949,289 $ 11,236 $ (33,900 ) $ 926,625 Intercompany accounts payable 1,503,931 — — (1,503,931 ) — — — — Income tax payable 39,536 — — — 39,536 — — 39,536 Accrued liabilities 51,481 55,720 1,733 — 108,934 24,304 (6,946 ) 126,292 Total current liabilities 1,613,298 986,659 1,733 (1,503,931 ) 1,097,759 35,540 (40,846 ) 1,092,453 Long-term debt 25,000 31,779 — (25,000 ) 31,779 951,067 — 982,846 Liability to HEP — 224,195 — — 224,195 — (224,195 ) — Deferred income tax liabilities 636,081 — — — 636,081 356 — 636,437 Other long-term liabilities 41,790 83,420 — — 125,210 58,417 (5,410 ) 178,217 Investment in HEP — — 131,705 — 131,705 — (131,705 ) — Equity – HollyFrontier 5,619,881 7,199,848 361,459 (7,561,307 ) 5,619,881 359,136 (357,849 ) 5,621,168 Equity – noncontrolling interest — — — — — 94,744 465,772 560,516 Total liabilities and equity $ 7,936,050 $ 8,525,901 $ 494,897 $ (9,090,238 ) $ 7,866,610 $ 1,499,260 $ (294,233 ) $ 9,071,637 Condensed Consolidating Balance Sheet December 31, 2014 Parent Guarantor Restricted Subsidiaries Non- Guarantor Restricted Subsidiaries Eliminations HollyFrontier Corp. Before Consolidation of HEP Non-Guarantor Non-Restricted Subsidiaries (HEP Segment) Consolidations and Eliminations Consolidated (In thousands) ASSETS Current assets: Cash and cash equivalents $ 565,080 $ — $ 75 $ — $ 565,155 $ 2,830 $ — $ 567,985 Marketable securities 474,068 42 — — 474,110 — — 474,110 Accounts receivable, net 5,107 579,526 3,774 — 588,407 40,129 (38,631 ) 589,905 Intercompany accounts receivable — 171,341 397,540 (568,881 ) — — — — Inventories — 1,033,191 — — 1,033,191 1,940 — 1,035,131 Income taxes receivable 11,719 — — — 11,719 — — 11,719 Prepayments and other 14,734 95,194 — — 109,928 2,443 (8,223 ) 104,148 Total current assets 1,070,708 1,879,294 401,389 (568,881 ) 2,782,510 47,342 (46,854 ) 2,782,998 Properties, plants and equip, net 31,808 2,873,350 902 — 2,906,060 1,024,311 (259,832 ) 3,670,539 Investment in subsidiaries 5,912,233 291,912 — (6,204,145 ) — — — — Intangibles and other assets 30,082 2,388,844 25,000 (25,000 ) 2,418,926 362,919 (4,742 ) 2,777,103 Total assets $ 7,044,831 $ 7,433,400 $ 427,291 $ (6,798,026 ) $ 8,107,496 $ 1,434,572 $ (311,428 ) $ 9,230,640 LIABILITIES AND EQUITY Current liabilities: Accounts payable $ 11,457 $ 1,117,429 $ 2 $ — $ 1,128,888 $ 17,881 $ (38,631 ) $ 1,108,138 Intercompany accounts payable 568,881 — — (568,881 ) — — — — Income taxes payable 19,642 — — — 19,642 — — 19,642 Accrued liabilities 41,403 45,331 1,382 — 88,116 26,321 (8,223 ) 106,214 Deferred income tax liabilities 17,409 — — — 17,409 — — 17,409 Total current liabilities 658,792 1,162,760 1,384 (568,881 ) 1,254,055 44,202 (46,854 ) 1,251,403 Long-term debt 179,144 33,167 — (25,000 ) 187,311 867,579 — 1,054,890 Liability to HEP — 233,217 — — 233,217 — (233,217 ) — Deferred income tax liabilities 646,503 — — — 646,503 367 — 646,870 Other long-term liabilities 43,451 92,023 — — 135,474 47,170 (5,886 ) 176,758 Investment in HEP — — 133,995 — 133,995 — (133,995 ) — Equity – HollyFrontier 5,516,941 5,912,233 291,912 (6,204,145 ) 5,516,941 380,172 (373,529 ) 5,523,584 Equity – noncontrolling interest — — — — — 95,082 482,053 577,135 Total liabilities and equity $ 7,044,831 $ 7,433,400 $ 427,291 $ (6,798,026 ) $ 8,107,496 $ 1,434,572 $ (311,428 ) $ 9,230,640
Condensed Consolidating Statement of Income and Comprehensive Income	Condensed Consolidating Statement of Income and Comprehensive Income Three Months Ended September 30, 2015 Parent Guarantor Restricted Subsidiaries Non- Guarantor Restricted Subsidiaries Eliminations HollyFrontier Corp. Before Consolidation of HEP Non-Guarantor Non-Restricted Subsidiaries (HEP Segment) Consolidations and Eliminations Consolidated (In thousands) Sales and other revenues $ 107 $ 3,571,188 $ 1 $ — $ 3,571,296 $ 88,389 $ (73,862 ) $ 3,585,823 Operating costs and expenses: Cost of products sold — 2,726,848 — (91 ) 2,726,757 — (72,898 ) 2,653,859 Lower of cost or market inventory valuation adjustment — 225,451 — — 225,451 — — 225,451 Operating expenses — 239,653 — 796 240,449 25,095 (146 ) 265,398 General and administrative 27,084 680 14 (705 ) 27,073 3,673 — 30,746 Depreciation and amortization 2,861 72,584 8 — 75,453 15,919 (3,608 ) 87,764 Total operating costs and expenses 29,945 3,265,216 22 — 3,295,183 44,687 (76,652 ) 3,263,218 Income (loss) from operations (29,838 ) 305,972 (21 ) — 276,113 43,702 2,790 322,605 Other income (expense): Earnings (loss) of equity method investments 336,756 22,006 21,799 (358,762 ) 21,799 1,269 (21,799 ) 1,269 Interest income (expense) (998 ) 1,740 219 — 961 (9,106 ) (2,284 ) (10,429 ) Gain on sale of assets 16 7,036 — — 7,052 176 — 7,228 335,774 30,782 22,018 (358,762 ) 29,812 (7,661 ) (24,083 ) (1,932 ) Income before income taxes 305,936 336,754 21,997 (358,762 ) 305,925 36,041 (21,293 ) 320,673 Income tax provision 109,997 — — — 109,997 69 — 110,066 Net income 195,939 336,754 21,997 (358,762 ) 195,928 35,972 (21,293 ) 210,607 Less net income attributable to noncontrolling interest — — (9 ) — (9 ) 831 13,463 14,285 Net income attributable to HollyFrontier stockholders $ 195,939 $ 336,754 $ 22,006 $ (358,762 ) $ 195,937 $ 35,141 $ (34,756 ) $ 196,322 Comprehensive income attributable to HollyFrontier stockholders $ 190,414 $ 327,419 $ 21,903 $ (349,322 ) $ 190,414 $ 35,038 $ (34,653 ) $ 190,799 Condensed Consolidating Statement of Income and Comprehensive Income Three Months Ended September 30, 2014 Parent Guarantor Restricted Subsidiaries Non- Guarantor Restricted Subsidiaries Eliminations HollyFrontier Corp. Before Consolidation of HEP Non-Guarantor Non-Restricted Subsidiaries (HEP Segment) Consolidations and Eliminations Consolidated (In thousands) Sales and other revenues $ 103 $ 5,303,131 $ — $ — $ 5,303,234 $ 82,141 $ (67,820 ) $ 5,317,555 Operating costs and expenses: Cost of products sold — 4,692,587 — — 4,692,587 — (66,694 ) 4,625,893 Operating expenses — 255,871 — — 255,871 25,456 (370 ) 280,957 General and administrative 24,904 530 36 (587 ) 24,883 2,266 — 27,149 Depreciation and amortization 2,055 66,832 — 587 69,474 15,078 (3,607 ) 80,945 Total operating costs and expenses 26,959 5,015,820 36 — 5,042,815 42,800 (70,671 ) 5,014,944 Income (loss) from operations (26,856 ) 287,311 (36 ) — 260,419 39,341 2,851 302,611 Other income (expense): Earnings (loss) of equity method investments 305,736 17,021 19,040 (324,884 ) 16,913 880 (19,040 ) (1,247 ) Interest income (expense) (1,227 ) 1,962 144 — 879 (8,585 ) (2,328 ) (10,034 ) Loss on sale of assets — (556 ) — — (556 ) — — (556 ) 304,509 18,427 19,184 (324,884 ) 17,236 (7,705 ) (21,368 ) (11,837 ) Income before income taxes 277,653 305,738 19,148 (324,884 ) 277,655 31,636 (18,517 ) 290,774 Income tax provision 103,174 — — — 103,174 42 — 103,216 Net income 174,479 305,738 19,148 (324,884 ) 174,481 31,594 (18,517 ) 187,558 Less net income attributable to noncontrolling interest — — — — — 1,509 11,043 12,552 Net income attributable to HollyFrontier stockholders $ 174,479 $ 305,738 $ 19,148 $ (324,884 ) $ 174,481 $ 30,085 $ (29,560 ) $ 175,006 Comprehensive income attributable to HollyFrontier stockholders $ 169,050 $ 296,622 $ 19,584 $ (316,206 ) $ 169,050 $ 30,520 $ (29,993 ) $ 169,577 Condensed Consolidating Statement of Income and Comprehensive Income Nine Months Ended Parent Guarantor Restricted Subsidiaries Non- Guarantor Restricted Subsidiaries Eliminations HollyFrontier Corp. Before Consolidation of HEP Non-Guarantor Non-Restricted Subsidiaries (HEP Segment) Consolidations and Eliminations Consolidated (In thousands) Sales and other revenues $ 381 $ 10,247,056 $ 1 $ — $ 10,247,438 $ 261,624 $ (214,701 ) $ 10,294,361 Operating costs and expenses: Cost of products sold — 8,004,718 — (91 ) 8,004,627 — (211,920 ) 7,792,707 Lower of cost or market inventory valuation adjustment — 83,425 — — 83,425 — — 83,425 Operating expenses — 696,446 — 796 697,242 78,350 (433 ) 775,159 General and administrative 75,716 1,666 96 (705 ) 76,773 9,659 — 86,432 Depreciation and amortization 7,769 213,628 24 — 221,421 44,869 (10,711 ) 255,579 Total operating costs and expenses 83,485 8,999,883 120 — 9,083,488 132,878 (223,064 ) 8,993,302 Income (loss) from operations (83,104 ) 1,247,173 (119 ) — 1,163,950 128,746 8,363 1,301,059 Other income (expense): Earnings (loss) of equity method investments 1,314,982 54,375 62,416 (1,377,898 ) 53,875 2,634 (62,416 ) (5,907 ) Interest income (expense) (1,835 ) 5,707 593 — 4,465 (26,926 ) (6,949 ) (29,410 ) Loss on early extinguishment of debt (1,370 ) — — — (1,370 ) — — (1,370 ) Gain on sale of assets 736 7,725 — — 8,461 406 — 8,867 1,312,513 67,807 63,009 (1,377,898 ) 65,431 (23,886 ) (69,365 ) (27,820 ) Income before income taxes 1,229,409 1,314,980 62,890 (1,377,898 ) 1,229,381 104,860 (61,002 ) 1,273,239 Income tax provision 446,678 — — — 446,678 106 — 446,784 Net income 782,731 1,314,980 62,890 (1,377,898 ) 782,703 104,754 (61,002 ) 826,455 Less net income attributable to noncontrolling interest — — (26 ) — (26 ) 6,601 35,858 42,433 Net income attributable to HollyFrontier stockholders $ 782,731 $ 1,314,980 $ 62,916 $ (1,377,898 ) $ 782,729 $ 98,153 $ (96,860 ) $ 784,022 Comprehensive income attributable to HollyFrontier stockholders $ 762,002 $ 1,280,517 $ 62,606 $ (1,343,123 ) $ 762,002 $ 97,843 $ (96,550 ) $ 763,295 Condensed Consolidating Statement of Income and Comprehensive Income Nine Months Ended Parent Guarantor Restricted Subsidiaries Non- Guarantor Restricted Subsidiaries Eliminations HollyFrontier Corp. Before Consolidation of HEP Non-Guarantor Non-Restricted Subsidiaries (HEP Segment) Consolidations and Eliminations Consolidated (In thousands) Sales and other revenues $ 383 $ 15,440,531 $ 935 $ — $ 15,441,849 $ 244,177 $ (204,818 ) $ 15,481,208 Operating costs and expenses: Cost of products sold — 13,640,897 — — 13,640,897 — (201,538 ) 13,439,359 Operating expenses — 754,798 — — 754,798 72,835 (1,056 ) 826,577 General and administrative 70,354 4,038 112 — 74,504 7,933 — 82,437 Depreciation and amortization 5,855 221,999 — — 227,854 45,739 (10,710 ) 262,883 Total operating costs and expenses 76,209 14,621,732 112 — 14,698,053 126,507 (213,304 ) 14,611,256 Income (loss) from operations (75,826 ) 818,799 823 — 743,796 117,670 8,486 869,952 Other income (expense): Earnings (loss) of equity method investments 871,883 47,589 51,455 (924,578 ) 46,349 2,150 (51,455 ) (2,956 ) Interest income (expense) (2,024 ) 6,051 417 — 4,444 (27,365 ) (7,007 ) (29,928 ) Loss on early extinguishment of debt — — — — — (7,677 ) — (7,677 ) Loss on sale of assets — (556 ) — — (556 ) — — (556 ) 869,859 53,084 51,872 (924,578 ) 50,237 (32,892 ) (58,462 ) (41,117 ) Income before income taxes 794,033 871,883 52,695 (924,578 ) 794,033 84,778 (49,976 ) 828,835 Income tax provision 292,017 — — — 292,017 145 — 292,162 Net income 502,016 871,883 52,695 (924,578 ) 502,016 84,633 (49,976 ) 536,673 Less net income attributable to noncontrolling interest — — — — — 6,562 26,615 33,177 Net income attributable to HollyFrontier stockholders $ 502,016 $ 871,883 $ 52,695 $ (924,578 ) $ 502,016 $ 78,071 $ (76,591 ) $ 503,496 Comprehensive income attributable to HollyFrontier stockholders $ 571,205 $ 984,562 $ 52,875 $ (1,037,437 ) $ 571,205 $ 78,250 $ (76,770 ) $ 572,685
Condensed Consolidating Statement of Cash Flows	Condensed Consolidating Statement of Cash Flows Nine Months Ended Parent Guarantor Restricted Subsidiaries Non- Guarantor Restricted Subsidiaries Eliminations HollyFrontier Corp. Before Consolidation of HEP Non-Guarantor Non-Restricted Subsidiaries (HEP Segment) Consolidations and Eliminations Consolidated (In thousands) Cash flows from operating activities $ (525,515 ) $ 1,257,692 $ 72,388 $ — $ 804,565 $ 165,527 $ (66,751 ) $ 903,341 Cash flows from investing activities Additions to properties, plants and equipment (8,126 ) (408,422 ) (63 ) — (416,611 ) — — (416,611 ) Additions to properties, plants and equipment – HEP — — — — — (57,286 ) — (57,286 ) Purchase interest in equity company — — — — — (54,641 ) — (54,641 ) Proceeds from sale of assets — 15,187 — — 15,187 644 — 15,831 Purchases of marketable securities (402,984 ) — — — (402,984 ) — — (402,984 ) Sales and maturities of marketable securities 490,251 — — — 490,251 — — 490,251 Net advances to Parent — (863,068 ) (72,389 ) 935,457 — — — — 79,141 (1,256,303 ) (72,452 ) 935,457 (314,157 ) (111,283 ) — (425,440 ) Cash flows from financing activities Net borrowings under credit agreement – HEP — — — — — 83,000 — 83,000 Redemption of senior notes - HFC (155,156 ) — — — (155,156 ) — — (155,156 ) Purchase of treasury stock (481,766 ) — — — (481,766 ) — — (481,766 ) Dividends (187,372 ) — — — (187,372 ) — — (187,372 ) Distributions to noncontrolling interest — — — — — (128,117 ) 66,751 (61,366 ) Other, net (1,020 ) (1,389 ) 15 — (2,394 ) (1,101 ) — (3,495 ) Net advances from subsidiaries 935,457 — — (935,457 ) — — — — 110,143 (1,389 ) 15 (935,457 ) (826,688 ) (46,218 ) 66,751 (806,155 ) Cash and cash equivalents Increase (decrease) for the period (336,231 ) — (49 ) — (336,280 ) 8,026 — (328,254 ) Beginning of period 565,080 — 75 — 565,155 2,830 — 567,985 End of period $ 228,849 $ — $ 26 $ — $ 228,875 $ 10,856 $ — $ 239,731 Condensed Consolidating Statement of Cash Flows Nine Months Ended Parent Guarantor Restricted Subsidiaries Non- Guarantor Restricted Subsidiaries Eliminations HollyFrontier Corp. Before Consolidation of HEP Non-Guarantor Non-Restricted Subsidiaries (HEP Segment) Consolidations and Eliminations Consolidated (In thousands) Cash flows from operating activities $ (260,533 ) $ 930,722 $ 55,047 $ — $ 725,236 $ 140,154 $ (59,457 ) $ 805,933 Cash flows from investing activities: Additions to properties, plants and equipment (8,373 ) (298,272 ) (831 ) — (307,476 ) — — (307,476 ) Additions to properties, plants and equipment – HEP — — — — — (61,657 ) — (61,657 ) Proceeds from sale of assets — 14,711 — — 14,711 — — 14,711 Purchases of marketable securities (762,224 ) — — — (762,224 ) — — (762,224 ) Sales and maturities of marketable securities 863,769 — — — 863,769 — — 863,769 Other, net — 5,021 — — 5,021 — — 5,021 Net advances to Parent — (649,294 ) (54,565 ) 703,859 — — — — 93,172 (927,834 ) (55,396 ) 703,859 (186,199 ) (61,657 ) — (247,856 ) Cash flows from financing activities: Net borrowings under credit agreement – HEP — — — — — 192,000 — 192,000 Redemption of senior notes — — — — — (156,188 ) — (156,188 ) Purchase of treasury stock (133,150 ) — — — (133,150 ) — — (133,150 ) Dividends (485,766 ) — — — (485,766 ) — — (485,766 ) Distributions to noncontrolling interest — — — — — (117,930 ) 59,457 (58,473 ) Excess tax benefit from equity-based compensation 4,482 — — — 4,482 — — 4,482 Other, net (3,257 ) (1,231 ) 493 — (3,995 ) (1,064 ) — (5,059 ) Net advances from subsidiaries 703,859 — — (703,859 ) — — — — 86,168 (1,231 ) 493 (703,859 ) (618,429 ) (83,182 ) 59,457 (642,154 ) Cash and cash equivalents Increase (decrease) for the period: (81,193 ) 1,657 144 — (79,392 ) (4,685 ) — (84,077 ) Beginning of period 931,920 1,817 14 — 933,751 6,352 — 940,103 End of period $ 850,727 $ 3,474 $ 158 $ — $ 854,359 $ 1,667 $ — $ 856,026

Description of Business and P36

Description of Business and Presentation of Financial Statements (Details)	3 Months Ended	9 Months Ended
	Sep. 30, 2015USD ($)mi	Sep. 30, 2015USD ($)Petroleum_Refineriesmi	Dec. 31, 2014USD ($)
Ownership Interest By Project Type [Line Items]
Number of refineries located in Tulsa, Oklahoma | Petroleum_Refineries		2
Refinery Distance From Main City [Miles] | mi		65
Allowance for doubtful accounts reserve	$ 2,300,000	$ 2,300,000	$ 2,400,000
Goodwill, Impairment Loss		0
Goodwill	$ 2,331,781,000	$ 2,331,781,000	2,331,781,000
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount	8.00%	8.00%
UNEV Pipeline [Member]
Ownership Interest By Project Type [Line Items]
Description of pipeline acquired (inches)		12
Length of pipeline (miles) | mi		427
SLC Pipeline [Member]
Ownership Interest By Project Type [Line Items]
Length of pipeline (miles) | mi		95
Frontier Pipeline [Member]
Ownership Interest By Project Type [Line Items]
Payments to Acquire Interest in Joint Venture		50.00%
Length of pipeline (miles) | mi	289	289
HEP [Member]
Ownership Interest By Project Type [Line Items]
Percentage of ownership in variable interest entity		39.00%
Percentage of general partner interest		2.00%
Goodwill	$ 288,991,000	$ 288,991,000	$ 288,991,000
Goodwill, Gross	$ 300,000,000	$ 300,000,000
Frontier Pipeline [Member]
Ownership Interest By Project Type [Line Items]
Equity Method Investment, Ownership Percentage	50.00%	50.00%
SLC Pipeline [Member]
Ownership Interest By Project Type [Line Items]
Equity Method Investment, Ownership Percentage	25.00%	25.00%
UNEV Pipeline [Member]
Ownership Interest By Project Type [Line Items]
Equity Method Investment, Ownership Percentage	75.00%	75.00%
El Dorado [Member]
Ownership Interest By Project Type [Line Items]
Goodwill	$ 1,700,000,000	$ 1,700,000,000
Cheyenne [Member]
Ownership Interest By Project Type [Line Items]
Goodwill	$ 300,000,000	$ 300,000,000

Holly Energy Partners (Details)

Holly Energy Partners (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2015USD ($)	Sep. 30, 2015mi	Sep. 30, 2015USD ($)Customersmibbl	Sep. 30, 2014USD ($)
Holly Energy Partners Entity [Line Items]
Payments to Acquire Equity Method Investments			$ (54,641)
Payments to Acquire Property, Plant, and Equipment			416,611	$ 307,476
Frontier Pipeline [Member]
Holly Energy Partners Entity [Line Items]
Payments to Acquire Equity Method Investments			$ (54,600)
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest			50.00%
Length of pipeline (miles) | mi		289	289
Production barrels per day | bbl			72,000
HEP [Member]
Holly Energy Partners Entity [Line Items]
Percentage of ownership in variable interest entity			39.00%
Percentage of general partner interest			2.00%
Number of primary customers | Customers			2
Percentage of revenue Holly Corp represents			82.00%
Payments to Acquire Equity Method Investments			$ 54,641	0
Payments to Acquire Property, Plant, and Equipment			57,286	$ 61,657
Annual contract payment			$ 236,600
Subsequent Event [Member] | HEP [Member]
Holly Energy Partners Entity [Line Items]
Payments to Acquire Property, Plant, and Equipment	$ 62,000
Annual contract payment	$ 15,300

Financial Instruments (Estimate

Financial Instruments (Estimated Fair Values Of Debt Instruments) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Financial instruments, assets at carrying value	$ 508,569	$ 701,044
Financial Liabilities Fair Value Disclosure	429,028	644,212
Level 1 [Member]
Debt Instrument [Line Items]
Financial instruments, assets at carrying value	5,064	17,619
Financial Liabilities Fair Value Disclosure	0
Level 2 [Member]
Debt Instrument [Line Items]
Financial instruments, assets at carrying value	503,505	683,425
Financial Liabilities Fair Value Disclosure	429,028	644,212
Marketable securities
Debt Instrument [Line Items]
Financial instruments, assets at carrying value	387,053	474,110
Marketable securities | Level 1 [Member]
Debt Instrument [Line Items]
Financial instruments, assets at carrying value	0	0
Marketable securities | Level 2 [Member]
Debt Instrument [Line Items]
Financial instruments, assets at carrying value	387,053	474,110
Commodity Contract [Member]
Debt Instrument [Line Items]
Financial instruments, assets at carrying value	113,956	208,296
Financial Liabilities Fair Value Disclosure	140,194	196,897
Commodity Contract [Member] | Level 2 [Member]
Debt Instrument [Line Items]
Financial instruments, assets at carrying value	113,956	208,296
Financial Liabilities Fair Value Disclosure	140,194	196,897
Forward Contracts [Member]
Debt Instrument [Line Items]
Financial instruments, assets at carrying value	2,496
Forward Contracts [Member] | Level 2 [Member]
Debt Instrument [Line Items]
Financial instruments, assets at carrying value	2,496
Nymex Futures Contracts [Member]
Debt Instrument [Line Items]
Financial instruments, assets at carrying value	5,064	17,619
Nymex Futures Contracts [Member] | Level 1 [Member]
Debt Instrument [Line Items]
Financial instruments, assets at carrying value	5,064	17,619
Nymex Futures Contracts [Member] | Level 2 [Member]
Debt Instrument [Line Items]
Financial instruments, assets at carrying value	0	0
Interest Rate Swap [Member] | HEP [Member]
Debt Instrument [Line Items]
Financial instruments, assets at carrying value		1,019
Financial Liabilities Fair Value Disclosure	834	1,065
Interest Rate Swap [Member] | Level 2 [Member] | HEP [Member]
Debt Instrument [Line Items]
Financial instruments, assets at carrying value		1,019
Financial Liabilities Fair Value Disclosure	834	1,065
Senior Notes [Member]
Debt Instrument [Line Items]
Financial Liabilities Fair Value Disclosure		155,250
Senior Notes [Member] | HEP [Member]
Debt Instrument [Line Items]
Financial Liabilities Fair Value Disclosure	288,000	291,000
Senior Notes [Member] | Level 2 [Member]
Debt Instrument [Line Items]
Financial Liabilities Fair Value Disclosure		155,250
Senior Notes [Member] | Level 2 [Member] | HEP [Member]
Debt Instrument [Line Items]
Financial Liabilities Fair Value Disclosure	288,000	291,000
Reported Value Measurement [Member]
Debt Instrument [Line Items]
Financial instruments, assets at carrying value	508,569	701,044
Financial Liabilities Fair Value Disclosure	438,095	648,685
Reported Value Measurement [Member] | Marketable securities
Debt Instrument [Line Items]
Financial instruments, assets at carrying value	387,053	474,110
Reported Value Measurement [Member] | Commodity Contract [Member]
Debt Instrument [Line Items]
Financial instruments, assets at carrying value	113,956	208,296
Financial Liabilities Fair Value Disclosure	140,194	196,897
Reported Value Measurement [Member] | Forward Contracts [Member]
Debt Instrument [Line Items]
Financial instruments, assets at carrying value	2,496
Reported Value Measurement [Member] | Nymex Futures Contracts [Member]
Debt Instrument [Line Items]
Financial instruments, assets at carrying value	5,064	17,619
Reported Value Measurement [Member] | Interest Rate Swap [Member] | HEP [Member]
Debt Instrument [Line Items]
Financial instruments, assets at carrying value		1,019
Financial Liabilities Fair Value Disclosure	834	1,065
Reported Value Measurement [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Financial Liabilities Fair Value Disclosure		154,144
Reported Value Measurement [Member] | Senior Notes [Member] | HEP [Member]
Debt Instrument [Line Items]
Financial Liabilities Fair Value Disclosure	$ 297,067	$ 296,579

Financial Instruments (Changes

Financial Instruments (Changes in Level 3 Inputs) (Details) - Fair Value, Inputs, Level 3 [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Liability Balance at Beginning of Period	$ 0	$ (75,637)	$ 0	$ (35,318)
Liability Balance at End of Period	0	115,910	0	115,910
Cost of Sales [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Change in fair value recognized in other comprehensive income	0	(4,251)	0	(8,034)
Sales [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Change in fair value recognized in other comprehensive income	0	6,202	(3,852)	80,476
Changes Measurement [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Change in fair value recognized in other comprehensive income	0	178,511	3,852	65,816
Changes Measurement [Member] | Cost of Sales [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Change in fair value recognized in other comprehensive income	$ 0	$ 11,085	$ 0	$ 12,970

Earnings Per Share (Schedule Of

Earnings Per Share (Schedule Of Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Earnings Per Share [Abstract]
Net income attributable to HollyFrontier stockholders		$ 196,322	$ 175,006	$ 784,022	$ 503,496
Participating Securities Share in Earnings		567	471	2,245	1,416
Net income attributable to common shares		$ 195,755	$ 174,535	$ 781,777	$ 502,080
Average number of shares of common stock outstanding		187,208	197,261	191,182	197,895
Effect of dilutive variable restricted shares and performance share units	[1]	136	274	100	201
Average number of shares of common stock outstanding assuming dilution		187,344	197,535	191,282	198,096
Basic earnings per share		$ 1.05	$ 0.88	$ 4.09	$ 2.54
Diluted earnings per share		$ 1.04	$ 0.88	$ 4.09	$ 2.53
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount		263	195	335	214
[1]	(1) Excludes anti-dilutive restricted and performance share units of: 263,000 195,000 335,000 214,000

Stock-Based Compensation (Narra

Stock-Based Compensation (Narrative) (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015USD ($)	Sep. 30, 2014USD ($)	Sep. 30, 2015USD ($)Petroleum_Refineriesshares	Sep. 30, 2014USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Share-based Compensation Plans | Petroleum_Refineries			2
Share-based Compensation Expense	$ 6.4	$ 6	$ 18.9	$ 18.2
HEP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Expense	1.3	$ 0.8	$ 3	$ 2.5
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period | shares			8,699
Total unrecognized compensation cost, weighted-average period of recognition, years			1 year 1 month
Fair value of restricted stock vested			$ 0.4
Total unrecognized compensation cost related to non-vested grants	9.8		$ 9.8
Restricted Stock [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement Vesting Period			1 year
Restricted Stock [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement Vesting Period			3 years
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost, weighted-average period of recognition, years			1 year 4 months
Total unrecognized compensation cost related to non-vested grants	$ 12.4		$ 12.4
Performance Shares [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement Vesting Period			3 years

Stock-Based Compensation (Summa

Stock-Based Compensation (Summary Of Restricted Stock Activity) (Details) - Restricted Stock [Member] $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2015USD ($)$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding at January 1, 2015 (non-vested)	669,777
Granted	12,969
Vesting (transfer/conversion to common stock)	(8,699)
Forfeited	(16,166)
Outstanding at September 30, 2015 (non-vested)	657,881
Outstanding at January 1, 2015 (non-vested), Weighted Average Grant Date Fair Value | $ / shares	$ 44.12
Granted, Weighted Average Grant Date Fair Value | $ / shares	40.33
Vesting and transfer of ownership to recipients, Weighted Average Grant Date Fair Value | $ / shares	44.08
Forfeited, Weighted Average Grant Date Fair Value, per share | $ / shares	43.83
Outstanding at September 30, 2015 (non-vested), Weighted Average Grant Date Fair Value | $ / shares	$ 44.05
Aggregate Intrinsic Value | $	$ 31,920

Stock-Based Compensation (Sum43

Stock-Based Compensation (Summary Of Performance Share Unit Activity) (Details) - Performance Shares [Member] $ / shares in Units, $ in Millions	9 Months Ended
	Sep. 30, 2015USD ($)$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Current Estimated Percentage Of Share Units Awarded Ultimately Issued	33.00%
Outstanding at January 1, 2015 (non-vested)	725,054
Granted	4,242
Forfeited	(27,131)
Outstanding at September 30, 2015 (non-vested)	702,165
Total unrecognized compensation cost related to non-vested grants | $	$ 12.4
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value | $ / shares	$ 43.68
Total unrecognized compensation cost, weighted-average period of recognition, years	1 year 4 months
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage Of Share Units Awarded Ultimately Issued	0.00%
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Expense	3 years
Percentage Of Share Units Awarded Ultimately Issued	200.00%

Cash and Cash Equivalents and44

Cash and Cash Equivalents and Investments in Marketable Securities (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Schedule of Available-for-sale Securities [Line Items]
Investment Income, Interest	$ 673	$ 1,004	$ 2,403	$ 3,593
Maximum term to maturity from date of purchase (years)	1 year
Available-for-sale Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment Income, Interest	$ 500		$ 1,400	$ 1,700

Cash and Cash Equivalents and45

Cash and Cash Equivalents and Investments in Marketable Securities (Available-For-Sale Securities) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Certificates of Deposit [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Available-for-Sale Securities, Amortized Cost	$ 5,999	$ 54,000
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	4	10
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	0	0
Available-for-sale Securities, Fair Value (Net Carrying Amount)	6,003	54,010
Commercial Paper [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Available-for-Sale Securities, Amortized Cost	58,299	52,297
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	21	7
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	0	(4)
Available-for-sale Securities, Fair Value (Net Carrying Amount)	58,320	52,300
Corporate Debt Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Available-for-Sale Securities, Amortized Cost	86,657	136,181
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	13	1
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	(31)	(94)
Available-for-sale Securities, Fair Value (Net Carrying Amount)	86,639	136,088
US States and Political Subdivisions Debt Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Available-for-Sale Securities, Amortized Cost	236,075	231,819
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	58	5
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	(42)	(112)
Available-for-sale Securities, Fair Value (Net Carrying Amount)	236,091	231,712
Total Marketable Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Available-for-Sale Securities, Amortized Cost	387,030	474,297
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	96	23
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	(73)	(210)
Available-for-sale Securities, Fair Value (Net Carrying Amount)	$ 387,053	$ 474,110

Inventories (Details)

Inventories (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Inventories
Crude Oil		$ 540,992		$ 540,992		$ 581,592
Other raw materials and unfinished products	[1]	175,468		175,468		204,467
Finished products	[2]	663,956		663,956		531,523
Lower of cost or market reserve		(480,903)		(480,903)		(397,478)
Process chemicals	[3]	7,275		7,275		4,028
Repairs and maintenance supplies and other		130,236		130,236		110,999
Inventories, total		1,037,024		1,037,024		$ 1,035,131
Lower of cost or market inventory valuation adjustment		$ 225,451	$ 0	$ 83,425	$ 0
[1]	Other raw materials and unfinished products include feedstocks and blendstocks, other than crude.
[2]	Finished products include gasolines, jet fuels, diesels, lubricants, asphalts, LPG’s and residual fuels.
[3]	Process chemicals include additives and other chemicals.

Environmental (Details)

Environmental (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Loss Contingencies [Line Items]
Environmental remediation costs	$ 3	$ 7.6	$ 1.3
Accrued environmental liability	103.7	$ 103.7		$ 104.5
Estimated time frame to remediate contigency		30
Other Noncurrent Liabilities [Member]
Loss Contingencies [Line Items]
Accrued environmental liability	$ 84	$ 84		$ 81.8

Debt (Narrative) (Details)

Debt (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Mar. 31, 2014	Sep. 30, 2015	Sep. 30, 2014	Jun. 30, 2015	Apr. 28, 2015	Mar. 31, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Capitalized Interest Costs, Including Allowance for Funds Used During Construction	$ 100	$ 2,900		$ 5,500	$ 9,000
Maximum borrowing capacity under revolving credit agreement	1,000,000			$ 1,000,000
Line of Credit Facility, Expiration Date				Jul. 1, 2019
Letters of Credit Outstanding, Amount	6,000			$ 6,000
Gains (Losses) on Extinguishment of Debt	$ 0	$ 0		$ (1,370)	(7,677)
Debt Instrument, Maturity Date	Nov. 1, 2018
6.875% Senior Notes Due 2018 [Member]
Debt Instrument [Line Items]
Stated interest rate, senior notes	6.875%			6.875%
Extinguishment of Debt, Amount	$ 155,200
Gains (Losses) on Extinguishment of Debt	(1,400)
Redemption Premium	5,200
Amortization of Financing Costs and Discounts	(3,800)
Senior notes						$ 150,000			$ 150,000
Plains [Member] | Lease [Member]
Debt Instrument [Line Items]
Proceeds from sale of storage assets				$ 40,000
Term of lease, years				15 years
HEP [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity under revolving credit agreement	$ 850,000			$ 850,000			$ 850,000	$ 650,000
Line of Credit Facility, Expiration Date	Nov. 1, 2018
Borrowings outstanding under revolving credit agreement	$ 654,000			$ 654,000					571,000
HEP [Member] | 8.25% Senior Notes Due 2018 [Member]
Debt Instrument [Line Items]
Stated interest rate, senior notes			8.25%
Extinguishment of Debt, Amount			$ 156,200
Gains (Losses) on Extinguishment of Debt					$ (7,677)
Redemption Premium			6,200
Amortization of Financing Costs and Discounts			1,500
Debt Instrument, Maturity Date				Mar. 1, 2018
Debt Instrument, Face Amount			$ 150,000
HEP [Member] | 6.5% Senior Notes Due 2020 [Member]
Debt Instrument [Line Items]
Stated interest rate, senior notes	6.50%			6.50%
Senior notes	$ 300,000			$ 300,000					$ 300,000
Debt Instrument, Maturity Date				Mar. 1, 2020
HEP [Member] | Letter of Credit [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity under revolving credit agreement	$ 50,000			$ 50,000

Debt (Carrying Amounts Of Long-

Debt (Carrying Amounts Of Long-Term Debt) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Jun. 30, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Financing obligation	$ 31,779		$ 33,167
Total long-term debt	982,846		1,054,890
Long-term Debt and Capital Lease Obligations	982,846		1,054,890
6.875% Senior Notes Due 2018 [Member]
Debt Instrument [Line Items]
Principal		$ 150,000	150,000
Unamortized Premium			4,144
Total long-term debt			154,144
Holly Financing Obligation [Member]
Debt Instrument [Line Items]
Long-term Debt and Capital Lease Obligations	31,779		187,311
HEP [Member]
Debt Instrument [Line Items]
HEP Credit Agreement	654,000		571,000
Total long-term debt	951,067		867,579
Long-term Debt and Capital Lease Obligations	951,067		867,579
HEP [Member] | 6.5% Senior Notes Due 2020 [Member]
Debt Instrument [Line Items]
Principal	300,000		300,000
Unamortized discount	(2,933)		(3,421)
Total long-term debt	$ 297,067		$ 296,579

Derivative Instruments And He50

Derivative Instruments And Hedging Activities Derivatives and Hedging Instruments Gains Losses due to Settlements Hedge Ineffectiveness (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Trading Activity, Gains and Losses, Net [Line Items]
Change in fair value, effective portion	$ 430	$ 4,580	$ (5,217)	$ 145,046
Gain reclassified to earnings due to settlements	(9,774)	(14,400)	(29,268)	(33,357)
Amortization of discontinued hedges reclassified to earnings	270	270	810	810
Unrealized Gain (Loss) on Cash Flow Hedging Instruments	(9,074)	(9,550)	(33,675)	112,499
Gain (Loss) Recognized in Earnings due to Settlements	9,504	14,130	28,458	32,547
Gain (Loss) Attributable to Hedge Ineffectiveness Recognized in Earnings	638	(4,790)	4,649	(5,596)
Sales [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Gain (Loss) Recognized in Earnings due to Settlements	57,513	(6,202)	156,445	(80,475)
Gain (Loss) Attributable to Hedge Ineffectiveness Recognized in Earnings		1,498	(274)	1,498
Cost of Sales [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Gain (Loss) Recognized in Earnings due to Settlements	(44,023)	20,776	(115,756)	111,217
Gain (Loss) Attributable to Hedge Ineffectiveness Recognized in Earnings	638	(6,189)	4,376	(6,189)
Operating Expense [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Gain (Loss) Recognized in Earnings due to Settlements	$ (3,986)	(444)	(12,231)	1,805
Gain (Loss) Attributable to Hedge Ineffectiveness Recognized in Earnings		$ (99)	$ 547	$ (905)

Derivative Instruments And He51

Derivative Instruments And Hedging Activities Volumes related to price risk purchase derivatives (Details) - Price Risk Derivative [Member]	9 Months Ended
	Sep. 30, 2015MMBTUbbl
Natural Gas - long [Member]
Price Risk Derivatives for Future Purchases Notional Contract Volumes [Line Items]
Derivative, Nonmonetary Notional Amount, Energy Measure | MMBTU	21,600,000
Natural Gas - long [Member] | Maturing in Next Twelve Months [Member]
Price Risk Derivatives for Future Purchases Notional Contract Volumes [Line Items]
Derivative, Nonmonetary Notional Amount, Energy Measure | MMBTU	2,400,000
Natural Gas - long [Member] | Maturing in Year Two [Member]
Price Risk Derivatives for Future Purchases Notional Contract Volumes [Line Items]
Derivative, Nonmonetary Notional Amount, Energy Measure | MMBTU	9,600,000
Natural Gas - long [Member] | Maturing in Year Three [Member]
Price Risk Derivatives for Future Purchases Notional Contract Volumes [Line Items]
Derivative, Nonmonetary Notional Amount, Energy Measure | MMBTU	9,600,000
WTI Crude Oil [Member]
Price Risk Derivatives for Future Purchases Notional Contract Volumes [Line Items]
Price Risk Fair Value Hedge Derivative, at Fair Value, Net	2,760,000
WTI Crude Oil [Member] | Maturing in Next Twelve Months [Member]
Price Risk Derivatives for Future Purchases Notional Contract Volumes [Line Items]
Price Risk Fair Value Hedge Derivative, at Fair Value, Net	2,760,000
Ultra Low Sulfur Diesel [Member]
Price Risk Derivatives for Future Purchases Notional Contract Volumes [Line Items]
Price Risk Fair Value Hedge Derivative, at Fair Value, Net	2,760,000
Ultra Low Sulfur Diesel [Member] | Maturing in Next Twelve Months [Member]
Price Risk Derivatives for Future Purchases Notional Contract Volumes [Line Items]
Price Risk Fair Value Hedge Derivative, at Fair Value, Net	2,760,000
Forward Contracts [Member]
Price Risk Derivatives for Future Purchases Notional Contract Volumes [Line Items]
Price Risk Fair Value Hedge Derivative, at Fair Value, Net	225,000
Forward Contracts [Member] | Maturing in Next Twelve Months [Member]
Price Risk Derivatives for Future Purchases Notional Contract Volumes [Line Items]
Price Risk Fair Value Hedge Derivative, at Fair Value, Net	225,000

Derivative Instruments And He52

Derivative Instruments And Hedging Activities Schedule of Realized Gain (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ 7,344	$ 27,776	$ 34,373	$ 3,182
Cost of Sales [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	13,872	27,773	41,445	3,367
Operating Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ (6,528)	$ 3	$ (7,072)	$ (185)

Derivative Instruments And He53

Derivative Instruments And Hedging Activities Notional Contracts by Derivative Type (Details) - Economic Hedges [Member]	9 Months Ended
	Sep. 30, 2015MMBTUbbl
Commodity Contract [Member]
Economic hedges by derivative type [Line Items]
Price Risk Fair Value Hedge Derivative, at Fair Value, Net | bbl	5,866,000
Commodity Contract [Member] | Maturing in Next Twelve Months [Member]
Economic hedges by derivative type [Line Items]
Price Risk Fair Value Hedge Derivative, at Fair Value, Net | bbl	1,840,000
Commodity Contract [Member] | Maturing in Year Two [Member]
Economic hedges by derivative type [Line Items]
Price Risk Fair Value Hedge Derivative, at Fair Value, Net | bbl	4,026,000
Natural Gas Liquids [Member]
Economic hedges by derivative type [Line Items]
Derivative, Nonmonetary Notional Amount, Energy Measure	22,626,000
Natural Gas Liquids [Member] | Maturing in Next Twelve Months [Member]
Economic hedges by derivative type [Line Items]
Derivative, Nonmonetary Notional Amount, Energy Measure	2,010,000
Natural Gas Liquids [Member] | Maturing in Year Two [Member]
Economic hedges by derivative type [Line Items]
Derivative, Nonmonetary Notional Amount, Energy Measure	10,308,000
Natural Gas Liquids [Member] | Maturing in Year Three [Member]
Economic hedges by derivative type [Line Items]
Derivative, Nonmonetary Notional Amount, Energy Measure	10,308,000
Natural Gas - long [Member]
Economic hedges by derivative type [Line Items]
Derivative, Nonmonetary Notional Amount, Energy Measure	21,600,000
Natural Gas - long [Member] | Maturing in Next Twelve Months [Member]
Economic hedges by derivative type [Line Items]
Derivative, Nonmonetary Notional Amount, Energy Measure	2,400,000
Natural Gas - long [Member] | Maturing in Year Two [Member]
Economic hedges by derivative type [Line Items]
Derivative, Nonmonetary Notional Amount, Energy Measure	9,600,000
Natural Gas - long [Member] | Maturing in Year Three [Member]
Economic hedges by derivative type [Line Items]
Derivative, Nonmonetary Notional Amount, Energy Measure	9,600,000
Natural Gas - Short [Member]
Economic hedges by derivative type [Line Items]
Derivative, Nonmonetary Notional Amount, Energy Measure	21,600,000
Natural Gas - Short [Member] | Maturing in Next Twelve Months [Member]
Economic hedges by derivative type [Line Items]
Derivative, Nonmonetary Notional Amount, Energy Measure	2,400,000
Natural Gas - Short [Member] | Maturing in Year Two [Member]
Economic hedges by derivative type [Line Items]
Derivative, Nonmonetary Notional Amount, Energy Measure	9,600,000
Natural Gas - Short [Member] | Maturing in Year Three [Member]
Economic hedges by derivative type [Line Items]
Derivative, Nonmonetary Notional Amount, Energy Measure	9,600,000
NYMEX WTI short [Member]
Economic hedges by derivative type [Line Items]
Price Risk Fair Value Hedge Derivative, at Fair Value, Net | bbl	1,760,000
NYMEX WTI short [Member] | Maturing in Next Twelve Months [Member]
Economic hedges by derivative type [Line Items]
Price Risk Fair Value Hedge Derivative, at Fair Value, Net | bbl	1,083,000
NYMEX WTI short [Member] | Maturing in Year Two [Member]
Economic hedges by derivative type [Line Items]
Price Risk Fair Value Hedge Derivative, at Fair Value, Net | bbl	677,000
Physical Contracts - Short [Member]
Economic hedges by derivative type [Line Items]
Price Risk Fair Value Hedge Derivative, at Fair Value, Net | bbl	150,000
Physical Contracts - Short [Member] | Maturing in Next Twelve Months [Member]
Economic hedges by derivative type [Line Items]
Price Risk Fair Value Hedge Derivative, at Fair Value, Net | bbl	150,000

Derivative Instruments And He54

Derivative Instruments And Hedging Activities (Narrative) (Details) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2015USD ($)	Sep. 30, 2015USD ($)
Derivative [Line Items]
Accumulated Other Comprehensive Income (Loss), Unrealized Gain (Loss) From Hedging Activites	$ 2.4	$ 2.4
Net unrealized gain in accumulated other comprehensive income related to accounting hedges	22.5	22.5
Net unrealized gain to be transferred from accumulated other comprehensive income to statement of income		0.7
HEP [Member] | Interest Rate Contract [Member]
Derivative [Line Items]
Credit agreement advance	$ 305	$ 305
Fixed interest rate	0.74%	0.74%
Rate added to fixed base rate		2.00%
Effective interest rate on debt	2.74%	2.74%
Credit agreement advance maturing in 2017	$ 150	$ 150
HEP [Member] | Current Interest Rate Swap [Member]
Derivative [Line Items]
Credit agreement advance maturing in 2016	$ 155	$ 155
Fixed interest rate	0.99%	0.99%
Rate added to fixed base rate	2.00%
Effective interest rate on debt	2.99%	2.99%

Derivative Instruments And He55

Derivative Instruments And Hedging Activities Interest Rate Swaps (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Derivative [Line Items]
Change in fair value, effective portion	$ 430	$ 4,580	$ (5,217)	$ 145,046
Loss reclassified to earnings due to settlements	(9,774)	(14,400)	(29,268)	(33,357)
Gain (Loss) Recognized in Earnings due to Settlements	9,504	14,130	28,458	32,547
HEP [Member]
Derivative [Line Items]
Change in fair value, effective portion	(787)	553	(2,373)	(1,189)
Loss reclassified to earnings due to settlements	526	556	1,585	1,647
Gain (Loss) Recognized in Earnings due to Settlements	(261)	1,109	(788)	458
Interest Expense [Member] | HEP [Member]
Derivative [Line Items]
Gain (Loss) Recognized in Earnings due to Settlements	$ (526)	$ (556)	$ (1,585)	$ (1,647)

Derivative Instruments And He56

Derivative Instruments And Hedging Activities (Summary Of Balance Sheet Locations And Related Fair Values Of Outstanding Derivative Instruments) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Derivative [Line Items]
Derivative Instruments in Hedges, Assets, at Fair Value	$ 14,443	$ 54,869
Derivative, Net Liability Position, Aggregate Fair Value	33,955	25,897
Accrued Liabilities [Member]
Derivative [Line Items]
Derivative, Net Liability Position, Aggregate Fair Value	6,575
Other Intangible Assets [Member]
Derivative [Line Items]
Derivative Instruments in Hedges, Assets, at Fair Value		1,019
Prepayments And Other [Member]
Derivative [Line Items]
Derivative Instruments in Hedges, Assets, at Fair Value	14,443	53,850
Other Noncurrent Liabilities [Member]
Derivative [Line Items]
Derivative, Net Liability Position, Aggregate Fair Value	27,380	25,897
Forward Contracts [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	2,496
Derivative designated as cash flow hedging instrument asset - gross liability	0
Derivative designated as cash flow hedging instrument asset - net asset	2,496
Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	58,346	174,677
Derivative designated as cash flow hedging instrument asset - gross liability	(51,209)	(142,115)
Derivative Instruments in Hedges, Assets, at Fair Value	7,137	32,562
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Liability	42,555	22,506
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Asset	(14,851)	0
Derivative, Net Liability Position, Aggregate Fair Value	27,704	22,506
Designated as Hedging Instrument [Member] | Forward Contracts [Member]
Derivative [Line Items]
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Liability	0
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Asset	0
Derivative, Net Liability Position, Aggregate Fair Value	0
Designated as Hedging Instrument [Member] | Commodity Contract [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	55,850	173,658
Derivative designated as cash flow hedging instrument asset - gross liability	(51,209)	(142,115)
Derivative Instruments in Hedges, Assets, at Fair Value	4,641	31,543
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Liability	41,721	21,441
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Asset	(14,851)	0
Derivative, Net Liability Position, Aggregate Fair Value	26,870	21,441
Designated as Hedging Instrument [Member] | HEP Interest Rate Swap [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	0	1,019
Derivative Instruments in Hedges, Assets, at Fair Value	0	1,019
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Liability	834	1,065
Derivative, Net Liability Position, Aggregate Fair Value	834	1,065
Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	20,845	35,249
Derivative designated as cash flow hedging instrument asset - gross liability	(13,539)	(12,942)
Derivative Instruments in Hedges, Assets, at Fair Value	7,306	22,307
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Liability	33,841	20,398
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Asset	(27,590)	(17,007)
Derivative, Net Liability Position, Aggregate Fair Value	6,251	3,391
Not Designated as Hedging Instrument [Member] | Commodity Contract [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	15,781	17,630
Derivative designated as cash flow hedging instrument asset - gross liability	(13,539)	(12,942)
Derivative Instruments in Hedges, Assets, at Fair Value	2,242	4,688
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Liability	33,841	20,398
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Asset	(27,590)	(17,007)
Derivative, Net Liability Position, Aggregate Fair Value	6,251	3,391
Not Designated as Hedging Instrument [Member] | Nymex Futures Contracts [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	5,064	17,619
Derivative Instruments in Hedges, Assets, at Fair Value	5,064	17,619
Derivative Instrument Not Designated as Hedging Instrument - Gross Liability		0
Derivative Designated as Cash Flow Hedging Instrument Liability - Gross Liability	0
Derivative, Net Liability Position, Aggregate Fair Value	$ 0	$ 0

Equity (Changes To Equity) (Det

Equity (Changes To Equity) (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Jun. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Balance at December 31, 2014				$ 5,523,584
Net income		$ 210,607	$ 187,558	826,455	$ 536,673
Other comprehensive income (loss), net of tax		(5,681)	$ (4,756)	(21,204)	69,467
Purchase of treasury stock				(481,766)	$ (133,150)
Balance at September 30, 2015		$ 5,621,168		$ 5,621,168
Shares Paid for Tax Withholding for Share Based Compensation				3,030
Stock Repurchase Program, Number of Shares Authorized to be Repurchased		1,000,000,000		1,000,000,000
Stock Repurchase Program, Remaining Authorized Repurchase Amount		$ 559,000		$ 559,000
Stock Repurchase Program, Authorized Amount						$ 300,000
Shares Purchased under Accelerated Share Repurchase Forward Contract		5,500,000
Accelerated share repurchase program settlement		1,200,000		1,200,000
Share Price		$ 44.81		$ 44.81
Holly Corporation Stockholders' Equity [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Balance at December 31, 2014				$ 5,523,584
Net income				784,022
Dividends				(187,372)
Distributions to noncontrolling interest holders				0
Other comprehensive income (loss), net of tax				(20,727)
Equity-based compensation				18,905
Tax attributable to equity-based compensation				(1,020)
Purchase of treasury stock	[1]			(496,224)
Purchase of units for incentive grants - HEP				0
Other				0
Balance at September 30, 2015		$ 5,621,168		5,621,168
Noncontrolling Interest [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Balance at December 31, 2014				577,135
Net income				42,433
Dividends				0
Distributions to noncontrolling interest holders				(61,366)
Other comprehensive income (loss), net of tax				(477)
Equity-based compensation				3,023
Tax attributable to equity-based compensation				0
Purchase of treasury stock	[1]			0
Purchase of units for incentive grants - HEP				(247)
Other				15
Balance at September 30, 2015		560,516		560,516
Stockholders' Equity, Total [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Balance at December 31, 2014				6,100,719
Net income				826,455
Dividends				(187,372)
Distributions to noncontrolling interest holders				(61,366)
Other comprehensive income (loss), net of tax				(21,204)
Equity-based compensation				21,928
Tax attributable to equity-based compensation				(1,020)
Purchase of treasury stock	[1]			(496,224)
Purchase of units for incentive grants - HEP				(247)
Other				15
Balance at September 30, 2015		$ 6,181,684		$ 6,181,684
[1]	Includes 3,030 shares withheld under the terms of stock-based compensation agreements to provide funds for the payment of payroll and income taxes due at the vesting of share-based awards.

Other Comprehensive Income (L58

Other Comprehensive Income (Loss) (Components And Allocated Tax Effects Of Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Other Comprehensive Income (Loss) Components and Tax Effects [Line Items]
Net Unrealized Gain (Loss) on Marketable Securities before Taxes	$ 166	$ (165)	$ 171	$ (129)
Net unrealized gain (loss) on hedging instruments	(9,335)	(8,441)	(34,463)	112,957
Net change in pension and other post-retirement benefit obligation	0	422	0	333
Other comprehensive income (loss)	(9,169)	(8,184)	(34,292)	113,161
Less other comprehensive income attributable to noncontrolling interest	(158)	673	(477)	278
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Stockholders	(9,011)	(8,857)	(33,815)	112,883
Net Unrealized Gain (loss) on Marketable Securities, Tax	64	(64)	66	(50)
Net unrealized gain (loss) on hedging instruments, tax expense (benefit)	(3,552)	(3,527)	(13,154)	43,616
Net change in Pension and Other Postretirement Benefit Plans, Tax		163		128
Other comprehensive income, tax expense	(3,488)	(3,428)	(13,088)	43,694
Other Comprehensive Income (Loss), Tax, Portion Attributable to Stockholders	(3,488)	(3,428)	(13,088)	43,694
Net unrealized gain (loss) on marketable securities, after tax	102	(101)	105	(79)
Net unrealized gain (loss) on hedging instruments, after tax	(5,783)	(4,914)	(21,309)	69,341
Net Change in Pension and Other Post-retirement Benefit Obligations, After Tax		259		205
Other comprehensive income (loss), net of tax	(5,681)	(4,756)	(21,204)	69,467
Less other comprehensive income attributable to noncontrolling interest, after tax	(158)	673	(477)	278
Other Comprehensive Income (Loss) Portion Attributable to Stockholders	$ (5,523)	$ (5,429)	$ (20,727)	$ 69,189

Other Comprehensive Income (L59

Other Comprehensive Income (Loss) (Accumulated Other Comprehensive Loss In Equity) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income Tax Expense (Benefit)	$ 110,066	$ 103,216	$ 446,784	$ 292,162
Net income	210,607	187,558	826,455	536,673
Sales and other revenues	3,585,823	5,317,555	10,294,361	15,481,208
Operating Costs	265,398	280,957	775,159	826,577
Interest Expense	(11,102)	(11,038)	(31,813)	(33,521)
Net Income (Loss) Attributable to Noncontrolling Interest	(14,285)	(12,552)	(42,433)	(33,177)
Net of Tax and Noncontrolling Interest	196,322	175,006	784,022	503,496
General and Administrative Expense	(30,746)	(27,149)	(86,432)	(82,437)
Other comprehensive income (loss), net of tax	(5,681)	(4,756)	(21,204)	69,467
Income before income taxes	320,673	290,774	1,273,239	828,835
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other comprehensive income (loss), net of tax	5,699	8,275	17,090	19,302
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest Income, Other	0	12	4	13
Income Tax Expense (Benefit)	0	5	18	5
Net income	0	7	28	8
Marketable Securities, Gain (Loss)			42	0
Income before income taxes			46	13
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income Tax Expense (Benefit)	3,598	5,384	10,772	12,345
Net income	5,380	8,190	16,101	18,555
Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest	8,978	13,574	26,873	30,900
Net Income (Loss) Attributable to Noncontrolling Interest	(319)	(337)	(961)	(998)
Net of Tax and Noncontrolling Interest	5,699	8,527	17,062	19,553
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] | Commodity Contract [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Sales and other revenues	57,513	(6,202)	156,445	(80,475)
Cost of Products Sold	(44,023)	20,776	(115,756)	111,217
Operating Costs	(3,986)	(444)	(12,231)	1,805
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] | Interest Rate Swap [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest Expense	(526)	(556)	(1,585)	(1,647)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income Tax Expense (Benefit)	0	(163)
Net income	0	(259)
General and Administrative Expense	$ 0	$ (422)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] | Supplemental Employee Retirement Plan [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income Tax Expense (Benefit)			0	(163)
Net income			0	(259)
General and Administrative Expense			$ 0	$ (422)

Other Comprehensive Income (L60

Other Comprehensive Income (Loss) Other Comprehensive Income Balance Components (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Class of Stock [Line Items]
Unrealized gain on post-retirement benefit obligations	$ 20,689	$ 20,689
Unrealized gain (loss) on marketable securities	20	(85)
Unrealized gain (loss) on hedging activities, net of noncontrolling interest	(13,542)	7,290
Accumulated other comprehensive income	$ 7,167	$ 27,894

Post-retirement Plan (Narrative

Post-retirement Plan (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension Contributions		$ 11
Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Amortization of Transition Obligations (Assets)	$ 2.6		$ 8.1

Post-retirement Plan (Net Perio

Post-retirement Plan (Net Periodic Pension Expense) (Details) - Other Postretirement Benefit Plan [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefit earned during the period	$ 424	$ 224	$ 1,272	$ 672
Interest cost on projected benefit obligations	205	159	615	478
Amortization of prior service cost	(871)	(1,074)	(2,613)	(3,222)
Amortization of net loss	46	0	138	0
Net periodic post-retirement expense (credit)	$ (196)	$ (691)	$ (588)	$ (2,072)

Contingencies Contingencies (De

Contingencies Contingencies (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2015	Jun. 30, 2015
Commitments and Contingencies Disclosure [Abstract]
Renewable Fuels Standard Change in Accrual	$ (5.2)	$ 4.1

Segment Information (Narrative)

Segment Information (Narrative) (Details) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2015USD ($)	Sep. 30, 2015USD ($)	Sep. 30, 2014USD ($)
Segment Reporting Information [Line Items]
Reportable segments	2
HEP [Member]
Segment Reporting Information [Line Items]
Revenues from external customers	$ 14.7	$ 47.4	$ 40.4
SLC Pipeline [Member]
Segment Reporting Information [Line Items]
Equity Method Investment, Ownership Percentage	25.00%	25.00%
UNEV Pipeline [Member]
Segment Reporting Information [Line Items]
Equity Method Investment, Ownership Percentage	75.00%	75.00%
Frontier Pipeline [Member]
Segment Reporting Information [Line Items]
Equity Method Investment, Ownership Percentage	50.00%	50.00%

Segment Information (Schedule O

Segment Information (Schedule Of Segment Reporting Information) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Segment Reporting Information [Line Items]
Sales and other revenues	$ 3,585,823	$ 5,317,555	$ 10,294,361	$ 15,481,208
Depreciation and amortization	87,764	80,945	255,579	262,883
Income (loss) from operations	322,605	302,611	1,301,059	869,952
Capital expenditures	156,984	124,364	473,897	369,133
Cash, Cash Equivalents, and Short-term Investments	626,784		626,784		$ 1,042,095
Total assets	9,071,637		9,071,637		9,230,640
Long-term Debt	982,846		982,846		1,054,890
2911 Petroleum Refining [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	3,571,192	5,303,053	10,246,965	15,440,047
Depreciation and amortization	68,976	63,109	202,686	210,490
Income (loss) from operations	310,810	292,132	1,261,024	835,555
Capital expenditures	147,641	98,115	405,738	290,392
Cash, Cash Equivalents, and Short-term Investments	62		62		88
Total assets	7,122,334		7,122,334		6,965,245
Long-term Debt	0		0		0
Corporate And Other [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	104	181	473	1,802
Depreciation and amortization	3,076	2,965	8,645	7,275
Income (loss) from operations	(31,296)	(28,313)	(86,984)	(81,670)
Capital expenditures	1,870	3,374	10,873	17,084
Cash, Cash Equivalents, and Short-term Investments	615,866		615,866		1,039,177
Total assets	753,619		753,619		1,150,865
Long-term Debt	31,779		31,779		187,311
Consolidation, Eliminations [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	(73,862)	(67,820)	(214,701)	(204,818)
Depreciation and amortization	(207)	(207)	(621)	(621)
Income (loss) from operations	(611)	(549)	(1,727)	(1,603)
Capital expenditures	0	0	0	0
Cash, Cash Equivalents, and Short-term Investments	0		0		0
Total assets	(303,576)		(303,576)		(320,042)
Long-term Debt	0		0		0
HEP [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	88,389	82,141	261,624	244,177
Depreciation and amortization	15,919	15,078	44,869	45,739
Income (loss) from operations	43,702	39,341	128,746	117,670
Capital expenditures	7,473	$ 22,875	57,286	$ 61,657
Cash, Cash Equivalents, and Short-term Investments	10,856		10,856		2,830
Total assets	1,499,260		1,499,260		1,434,572
Long-term Debt	$ 951,067		$ 951,067		$ 867,579

Supplemental Guarantor_Non-Gu66

Supplemental Guarantor/Non-Guarantor Financial Information (Narrative) (Details)	9 Months Ended
	Sep. 30, 2015
HEP [Member]
Guarantor Obligations [Line Items]
Percentage of ownership in variable interest entity	39.00%

Supplemental Guarantor_Non-Gu67

Supplemental Guarantor/Non-Guarantor Financial Information Consolidating Balance Sheet (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Dec. 31, 2013
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	$ 239,731	$ 567,985	$ 856,026	$ 940,103
Marketable securities	387,053	474,110
Accounts receivable, net	522,349	589,905
Intercompany accounts receivable	0	0
Inventories	1,037,024	1,035,131
Income taxes receivable	0	11,719
Deferred income tax assets	48,419	0
Prepayments and other	73,097	104,148
Total current assets	2,307,673	2,782,998
Properties, plants and equipment, net	3,977,258	3,670,539
Investment in subsidiaries	0	0
Intangibles and other assets	2,786,706	2,777,103
Total assets	9,071,637	9,230,640
Accounts payable	926,625	1,108,138
Intercompany accounts payable	0	0
Income tax payable	39,536	19,642
Accrued liabilities	126,292	106,214
Deferred income tax liabilities	0	17,409
Total current liabilities	1,092,453	1,251,403
Long-term debt	982,846	1,054,890
Liability to HEP	0	0
Deferred income tax liabilities	636,437	646,870
Other long-term liabilities	178,217	176,758
Investment in HEP	0	0
Equity – HollyFrontier	5,621,168	5,523,584
Equity – noncontrolling interest	560,516	577,135
Total liabilities and equity	9,071,637	9,230,640
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	228,849	565,080	850,727	931,920
Marketable securities	387,053	474,068
Accounts receivable, net	3,542	5,107
Intercompany accounts receivable	0	0
Inventories	0	0
Income taxes receivable		11,719
Deferred income tax assets	48,419
Prepayments and other	8,222	14,734
Total current assets	676,085	1,070,708
Properties, plants and equipment, net	33,404	31,808
Investment in subsidiaries	7,199,848	5,912,233
Intangibles and other assets	26,713	30,082
Total assets	7,936,050	7,044,831
Accounts payable	18,350	11,457
Intercompany accounts payable	1,503,931	568,881
Income tax payable	39,536	19,642
Accrued liabilities	51,481	41,403
Deferred income tax liabilities		17,409
Total current liabilities	1,613,298	658,792
Long-term debt	25,000	179,144
Liability to HEP	0	0
Deferred income tax liabilities	636,081	646,503
Other long-term liabilities	41,790	43,451
Investment in HEP	0	0
Equity – HollyFrontier	5,619,881	5,516,941
Equity – noncontrolling interest	0	0
Total liabilities and equity	7,936,050	7,044,831
Guarantor Restricted Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	0	0	3,474	1,817
Marketable securities	0	42
Accounts receivable, net	516,964	579,526
Intercompany accounts receivable	1,037,776	171,341
Inventories	1,035,121	1,033,191
Income taxes receivable		0
Deferred income tax assets	0
Prepayments and other	69,150	95,194
Total current assets	2,659,011	1,879,294
Properties, plants and equipment, net	3,160,133	2,873,350
Investment in subsidiaries	361,459	291,912
Intangibles and other assets	2,345,298	2,388,844
Total assets	8,525,901	7,433,400
Accounts payable	930,939	1,117,429
Intercompany accounts payable	0	0
Income tax payable	0	0
Accrued liabilities	55,720	45,331
Deferred income tax liabilities		0
Total current liabilities	986,659	1,162,760
Long-term debt	31,779	33,167
Liability to HEP	224,195	233,217
Deferred income tax liabilities	0	0
Other long-term liabilities	83,420	92,023
Investment in HEP	0	0
Equity – HollyFrontier	7,199,848	5,912,233
Equity – noncontrolling interest	0	0
Total liabilities and equity	8,525,901	7,433,400
Non Guarantor Restricted Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	26	75	158	14
Marketable securities	0	0
Accounts receivable, net	2,775	3,774
Intercompany accounts receivable	466,155	397,540
Inventories	0	0
Income taxes receivable		0
Deferred income tax assets	0
Prepayments and other	0	0
Total current assets	468,956	401,389
Properties, plants and equipment, net	941	902
Investment in subsidiaries	0	0
Intangibles and other assets	25,000	25,000
Total assets	494,897	427,291
Accounts payable	0	2
Intercompany accounts payable	0	0
Income tax payable	0	0
Accrued liabilities	1,733	1,382
Deferred income tax liabilities		0
Total current liabilities	1,733	1,384
Long-term debt	0	0
Liability to HEP	0	0
Deferred income tax liabilities	0	0
Other long-term liabilities	0	0
Investment in HEP	131,705	133,995
Equity – HollyFrontier	361,459	291,912
Equity – noncontrolling interest	0	0
Total liabilities and equity	494,897	427,291
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	0	0	0	0
Marketable securities	0	0
Accounts receivable, net	0	0
Intercompany accounts receivable	(1,503,931)	(568,881)
Inventories	0	0
Income taxes receivable		0
Deferred income tax assets	0
Prepayments and other	0	0
Total current assets	(1,503,931)	(568,881)
Properties, plants and equipment, net	0	0
Investment in subsidiaries	(7,561,307)	(6,204,145)
Intangibles and other assets	(25,000)	(25,000)
Total assets	(9,090,238)	(6,798,026)
Accounts payable	0	0
Intercompany accounts payable	(1,503,931)	(568,881)
Income tax payable	0	0
Accrued liabilities	0	0
Deferred income tax liabilities		0
Total current liabilities	(1,503,931)	(568,881)
Long-term debt	(25,000)	(25,000)
Liability to HEP	0	0
Deferred income tax liabilities	0	0
Other long-term liabilities	0	0
Investment in HEP	0	0
Equity – HollyFrontier	(7,561,307)	(6,204,145)
Equity – noncontrolling interest	0	0
Total liabilities and equity	(9,090,238)	(6,798,026)
Holly Frontier Corp. Before Consolidation of HEP [Member]
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	228,875	565,155	854,359	933,751
Marketable securities	387,053	474,110
Accounts receivable, net	523,281	588,407
Intercompany accounts receivable	0	0
Inventories	1,035,121	1,033,191
Income taxes receivable		11,719
Deferred income tax assets	48,419
Prepayments and other	77,372	109,928
Total current assets	2,300,121	2,782,510
Properties, plants and equipment, net	3,194,478	2,906,060
Investment in subsidiaries	0	0
Intangibles and other assets	2,372,011	2,418,926
Total assets	7,866,610	8,107,496
Accounts payable	949,289	1,128,888
Intercompany accounts payable	0	0
Income tax payable	39,536	19,642
Accrued liabilities	108,934	88,116
Deferred income tax liabilities		17,409
Total current liabilities	1,097,759	1,254,055
Long-term debt	31,779	187,311
Liability to HEP	224,195	233,217
Deferred income tax liabilities	636,081	646,503
Other long-term liabilities	125,210	135,474
Investment in HEP	131,705	133,995
Equity – HollyFrontier	5,619,881	5,516,941
Equity – noncontrolling interest	0	0
Total liabilities and equity	7,866,610	8,107,496
Non-Guarantor Non-Restricted Subsidiaries (HEP Segment) [Member]
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	10,856	2,830	1,667	6,352
Marketable securities	0	0
Accounts receivable, net	32,968	40,129
Intercompany accounts receivable	0	0
Inventories	1,903	1,940
Income taxes receivable		0
Deferred income tax assets	0
Prepayments and other	2,671	2,443
Total current assets	48,398	47,342
Properties, plants and equipment, net	1,031,902	1,024,311
Investment in subsidiaries	0	0
Intangibles and other assets	418,960	362,919
Total assets	1,499,260	1,434,572
Accounts payable	11,236	17,881
Intercompany accounts payable	0	0
Income tax payable	0	0
Accrued liabilities	24,304	26,321
Deferred income tax liabilities		0
Total current liabilities	35,540	44,202
Long-term debt	951,067	867,579
Liability to HEP	0	0
Deferred income tax liabilities	356	367
Other long-term liabilities	58,417	47,170
Investment in HEP	0	0
Equity – HollyFrontier	359,136	380,172
Equity – noncontrolling interest	94,744	95,082
Total liabilities and equity	1,499,260	1,434,572
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	0	0	$ 0	$ 0
Marketable securities	0	0
Accounts receivable, net	(33,900)	(38,631)
Intercompany accounts receivable	0	0
Inventories	0	0
Income taxes receivable		0
Deferred income tax assets	0
Prepayments and other	(6,946)	(8,223)
Total current assets	(40,846)	(46,854)
Properties, plants and equipment, net	(249,122)	(259,832)
Investment in subsidiaries	0	0
Intangibles and other assets	(4,265)	(4,742)
Total assets	(294,233)	(311,428)
Accounts payable	(33,900)	(38,631)
Intercompany accounts payable	0	0
Income tax payable	0	0
Accrued liabilities	(6,946)	(8,223)
Deferred income tax liabilities		0
Total current liabilities	(40,846)	(46,854)
Long-term debt	0	0
Liability to HEP	(224,195)	(233,217)
Deferred income tax liabilities	0	0
Other long-term liabilities	(5,410)	(5,886)
Investment in HEP	(131,705)	(133,995)
Equity – HollyFrontier	(357,849)	(373,529)
Equity – noncontrolling interest	465,772	482,053
Total liabilities and equity	$ (294,233)	$ (311,428)

Supplemental Guarantor_Non-Gu68

Supplemental Guarantor/Non-Guarantor Financial Information Consolidating Statement of Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Condensed Financial Statements, Captions [Line Items]
Sales and other revenues	$ 3,585,823	$ 5,317,555	$ 10,294,361	$ 15,481,208
Cost of products sold	2,653,859	4,625,893	7,792,707	13,439,359
Lower of cost or market inventory valuation adjustment	225,451	0	83,425	0
Operating Costs	265,398	280,957	775,159	826,577
General and administrative	30,746	27,149	86,432	82,437
Depreciation and amortization	87,764	80,945	255,579	262,883
Total operating costs and expenses	3,263,218	5,014,944	8,993,302	14,611,256
Income (loss) from operations	322,605	302,611	1,301,059	869,952
Earnings (loss) of equity method investments	1,269	(1,247)	(5,907)	(2,956)
Interest income (expense)	(10,429)	(10,034)	(29,410)	(29,928)
Loss on early extinguishment of debt	0	0	(1,370)	(7,677)
Gain (loss) on sale of assets	7,228	(556)	8,867	(556)
Nonoperating Income (Expense)	(1,932)	(11,837)	(27,820)	(41,117)
Income before income taxes	320,673	290,774	1,273,239	828,835
Income tax provision	110,066	103,216	446,784	292,162
Net income	210,607	187,558	826,455	536,673
Less net income attributable to noncontrolling interest	14,285	12,552	42,433	33,177
Net income attributable to HollyFrontier stockholders	196,322	175,006	784,022	503,496
Comprehensive income attributable to HollyFrontier stockholders	190,799	169,577	763,295	572,685
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Sales and other revenues	107	103	381	383
Cost of products sold	0	0	0	0
Lower of cost or market inventory valuation adjustment	0		0
Operating Costs	0	0	0	0
General and administrative	27,084	24,904	75,716	70,354
Depreciation and amortization	2,861	2,055	7,769	5,855
Total operating costs and expenses	29,945	26,959	83,485	76,209
Income (loss) from operations	(29,838)	(26,856)	(83,104)	(75,826)
Earnings (loss) of equity method investments	336,756	305,736	1,314,982	871,883
Interest income (expense)	(998)	(1,227)	(1,835)	(2,024)
Loss on early extinguishment of debt			(1,370)	0
Gain (loss) on sale of assets	16	0	736	0
Nonoperating Income (Expense)	335,774	304,509	1,312,513	869,859
Income before income taxes	305,936	277,653	1,229,409	794,033
Income tax provision	109,997	103,174	446,678	292,017
Net income	195,939	174,479	782,731	502,016
Less net income attributable to noncontrolling interest	0	0	0	0
Net income attributable to HollyFrontier stockholders	195,939	174,479	782,731	502,016
Comprehensive income attributable to HollyFrontier stockholders	190,414	169,050	762,002	571,205
Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Sales and other revenues	3,571,188	5,303,131	10,247,056	15,440,531
Cost of products sold	2,726,848	4,692,587	8,004,718	13,640,897
Lower of cost or market inventory valuation adjustment	225,451		83,425
Operating Costs	239,653	255,871	696,446	754,798
General and administrative	680	530	1,666	4,038
Depreciation and amortization	72,584	66,832	213,628	221,999
Total operating costs and expenses	3,265,216	5,015,820	8,999,883	14,621,732
Income (loss) from operations	305,972	287,311	1,247,173	818,799
Earnings (loss) of equity method investments	22,006	17,021	54,375	47,589
Interest income (expense)	1,740	1,962	5,707	6,051
Loss on early extinguishment of debt			0	0
Gain (loss) on sale of assets	7,036	(556)	7,725	(556)
Nonoperating Income (Expense)	30,782	18,427	67,807	53,084
Income before income taxes	336,754	305,738	1,314,980	871,883
Income tax provision	0	0	0	0
Net income	336,754	305,738	1,314,980	871,883
Less net income attributable to noncontrolling interest	0	0	0	0
Net income attributable to HollyFrontier stockholders	336,754	305,738	1,314,980	871,883
Comprehensive income attributable to HollyFrontier stockholders	327,419	296,622	1,280,517	984,562
Non Guarantor Restricted Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Sales and other revenues	1	0	1	935
Cost of products sold	0	0	0	0
Lower of cost or market inventory valuation adjustment	0		0
Operating Costs	0	0	0	0
General and administrative	14	36	96	112
Depreciation and amortization	8	0	24	0
Total operating costs and expenses	22	36	120	112
Income (loss) from operations	(21)	(36)	(119)	823
Earnings (loss) of equity method investments	21,799	19,040	62,416	51,455
Interest income (expense)	219	144	593	417
Loss on early extinguishment of debt			0	0
Gain (loss) on sale of assets	0	0	0	0
Nonoperating Income (Expense)	22,018	19,184	63,009	51,872
Income before income taxes	21,997	19,148	62,890	52,695
Income tax provision	0	0	0	0
Net income	21,997	19,148	62,890	52,695
Less net income attributable to noncontrolling interest	(9)	0	(26)	0
Net income attributable to HollyFrontier stockholders	22,006	19,148	62,916	52,695
Comprehensive income attributable to HollyFrontier stockholders	21,903	19,584	62,606	52,875
Eliminations From Consolidation Of Restricted Subsidiaries Member
Condensed Financial Statements, Captions [Line Items]
Sales and other revenues	0	0	0	0
Cost of products sold	(91)	0	(91)	0
Lower of cost or market inventory valuation adjustment	0		0
Operating Costs	796	0	796	0
General and administrative	(705)	(587)	(705)	0
Depreciation and amortization	0	587	0	0
Total operating costs and expenses	0	0	0	0
Income (loss) from operations	0	0	0	0
Earnings (loss) of equity method investments	(358,762)	(324,884)	(1,377,898)	(924,578)
Interest income (expense)	0	0	0	0
Loss on early extinguishment of debt			0	0
Gain (loss) on sale of assets	0	0	0	0
Nonoperating Income (Expense)	(358,762)	(324,884)	(1,377,898)	(924,578)
Income before income taxes	(358,762)	(324,884)	(1,377,898)	(924,578)
Income tax provision	0	0	0	0
Net income	(358,762)	(324,884)	(1,377,898)	(924,578)
Less net income attributable to noncontrolling interest	0	0	0	0
Net income attributable to HollyFrontier stockholders	(358,762)	(324,884)	(1,377,898)	(924,578)
Comprehensive income attributable to HollyFrontier stockholders	(349,322)	(316,206)	(1,343,123)	(1,037,437)
Holly Frontier Corp. Before Consolidation of HEP [Member]
Condensed Financial Statements, Captions [Line Items]
Sales and other revenues	3,571,296	5,303,234	10,247,438	15,441,849
Cost of products sold	2,726,757	4,692,587	8,004,627	13,640,897
Lower of cost or market inventory valuation adjustment	225,451		83,425
Operating Costs	240,449	255,871	697,242	754,798
General and administrative	27,073	24,883	76,773	74,504
Depreciation and amortization	75,453	69,474	221,421	227,854
Total operating costs and expenses	3,295,183	5,042,815	9,083,488	14,698,053
Income (loss) from operations	276,113	260,419	1,163,950	743,796
Earnings (loss) of equity method investments	21,799	16,913	53,875	46,349
Interest income (expense)	961	879	4,465	4,444
Loss on early extinguishment of debt			(1,370)	0
Gain (loss) on sale of assets	7,052	(556)	8,461	(556)
Nonoperating Income (Expense)	29,812	17,236	65,431	50,237
Income before income taxes	305,925	277,655	1,229,381	794,033
Income tax provision	109,997	103,174	446,678	292,017
Net income	195,928	174,481	782,703	502,016
Less net income attributable to noncontrolling interest	(9)	0	(26)	0
Net income attributable to HollyFrontier stockholders	195,937	174,481	782,729	502,016
Comprehensive income attributable to HollyFrontier stockholders	190,414	169,050	762,002	571,205
Non-Guarantor Non-Restricted Subsidiaries (HEP Segment) [Member]
Condensed Financial Statements, Captions [Line Items]
Sales and other revenues	88,389	82,141	261,624	244,177
Cost of products sold	0	0	0	0
Lower of cost or market inventory valuation adjustment	0		0
Operating Costs	25,095	25,456	78,350	72,835
General and administrative	3,673	2,266	9,659	7,933
Depreciation and amortization	15,919	15,078	44,869	45,739
Total operating costs and expenses	44,687	42,800	132,878	126,507
Income (loss) from operations	43,702	39,341	128,746	117,670
Earnings (loss) of equity method investments	1,269	880	2,634	2,150
Interest income (expense)	(9,106)	(8,585)	(26,926)	(27,365)
Loss on early extinguishment of debt			0	(7,677)
Gain (loss) on sale of assets	176	0	406	0
Nonoperating Income (Expense)	(7,661)	(7,705)	(23,886)	(32,892)
Income before income taxes	36,041	31,636	104,860	84,778
Income tax provision	69	42	106	145
Net income	35,972	31,594	104,754	84,633
Less net income attributable to noncontrolling interest	831	1,509	6,601	6,562
Net income attributable to HollyFrontier stockholders	35,141	30,085	98,153	78,071
Comprehensive income attributable to HollyFrontier stockholders	35,038	30,520	97,843	78,250
Consolidation, Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Sales and other revenues	(73,862)	(67,820)	(214,701)	(204,818)
Cost of products sold	(72,898)	(66,694)	(211,920)	(201,538)
Lower of cost or market inventory valuation adjustment	0		0
Operating Costs	(146)	(370)	(433)	(1,056)
General and administrative	0	0	0	0
Depreciation and amortization	(3,608)	(3,607)	(10,711)	(10,710)
Total operating costs and expenses	(76,652)	(70,671)	(223,064)	(213,304)
Income (loss) from operations	2,790	2,851	8,363	8,486
Earnings (loss) of equity method investments	(21,799)	(19,040)	(62,416)	(51,455)
Interest income (expense)	(2,284)	(2,328)	(6,949)	(7,007)
Loss on early extinguishment of debt			0	0
Gain (loss) on sale of assets	0	0	0	0
Nonoperating Income (Expense)	(24,083)	(21,368)	(69,365)	(58,462)
Income before income taxes	(21,293)	(18,517)	(61,002)	(49,976)
Income tax provision	0	0	0	0
Net income	(21,293)	(18,517)	(61,002)	(49,976)
Less net income attributable to noncontrolling interest	13,463	11,043	35,858	26,615
Net income attributable to HollyFrontier stockholders	(34,756)	(29,560)	(96,860)	(76,591)
Comprehensive income attributable to HollyFrontier stockholders	$ (34,653)	$ (29,993)	$ (96,550)	$ (76,770)

Supplemental Guarantor_Non-Gu69

Supplemental Guarantor/Non-Guarantor Financial Information Consolidating Statement of Cash Flows (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Condensed Financial Statements, Captions [Line Items]
Cash flows from operating activities	$ 903,341	$ 805,933
Additions to properties, plants and equipment	(416,611)	(307,476)
Payments to Acquire Equity Method Investments	(54,641)
Proceeds from sale of assets	15,831	14,711
Purchases of marketable securities	(402,984)	(762,224)
Sales and maturities of marketable securities	490,251	863,769
Other, net	0	5,021
Net Advances to Parent	0	0
Net cash used for investing activities	(425,440)	(247,856)
Net borrowings under credit agreement – HEP	83,000	192,000
Redemption of Senior Notes - HEP		(156,188)
Redemption of senior notes	(155,156)
Purchase of treasury stock	(481,766)	(133,150)
Dividends	(187,372)	(485,766)
Payments to Noncontrolling Interests	(61,366)	(58,473)
Excess tax benefit from equity based compensation	0	4,482
Other, net	(3,495)	(5,059)
Net advances from subsidiaries	0	0
Net cash provided by (used for) financing activities	(806,155)	(642,154)
Increase (decrease) for the period	(328,254)	(84,077)
Beginning of period	567,985	940,103
End of period	239,731	856,026
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Cash flows from operating activities	(525,515)	(260,533)
Additions to properties, plants and equipment	(8,126)	(8,373)
Payments to Acquire Equity Method Investments	0
Proceeds from sale of assets	0	0
Purchases of marketable securities	(402,984)	(762,224)
Sales and maturities of marketable securities	490,251	863,769
Other, net		0
Net Advances to Parent	0	0
Net cash used for investing activities	79,141	93,172
Net borrowings under credit agreement – HEP	0
Redemption of Senior Notes - HEP		0
Redemption of senior notes	(155,156)
Purchase of treasury stock	(481,766)	(133,150)
Dividends	(187,372)	(485,766)
Payments to Noncontrolling Interests	0	0
Excess tax benefit from equity based compensation		4,482
Other, net	(1,020)	(3,257)
Net advances from subsidiaries	(935,457)	(703,859)
Net cash provided by (used for) financing activities	110,143	86,168
Increase (decrease) for the period	(336,231)	(81,193)
Beginning of period	565,080	931,920
End of period	228,849	850,727
Guarantor Restricted Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Cash flows from operating activities	1,257,692	930,722
Additions to properties, plants and equipment	(408,422)	(298,272)
Payments to Acquire Equity Method Investments	0
Proceeds from sale of assets	15,187	14,711
Purchases of marketable securities	0	0
Sales and maturities of marketable securities	0	0
Other, net		5,021
Net Advances to Parent	(863,068)	(649,294)
Net cash used for investing activities	(1,256,303)	(927,834)
Net borrowings under credit agreement – HEP	0
Redemption of Senior Notes - HEP		0
Redemption of senior notes	0
Purchase of treasury stock	0	0
Dividends	0	0
Payments to Noncontrolling Interests	0	0
Excess tax benefit from equity based compensation		0
Other, net	(1,389)	(1,231)
Net advances from subsidiaries	0	0
Net cash provided by (used for) financing activities	(1,389)	(1,231)
Increase (decrease) for the period	0	1,657
Beginning of period	0	1,817
End of period	0	3,474
Non Guarantor Restricted Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Cash flows from operating activities	72,388	55,047
Additions to properties, plants and equipment	(63)	(831)
Payments to Acquire Equity Method Investments	0
Proceeds from sale of assets	0	0
Purchases of marketable securities	0	0
Sales and maturities of marketable securities	0	0
Other, net		0
Net Advances to Parent	(72,389)	(54,565)
Net cash used for investing activities	(72,452)	(55,396)
Net borrowings under credit agreement – HEP	0
Redemption of Senior Notes - HEP		0
Redemption of senior notes	0
Purchase of treasury stock	0	0
Dividends	0	0
Payments to Noncontrolling Interests	0	0
Excess tax benefit from equity based compensation		0
Other, net	15	493
Net advances from subsidiaries	0	0
Net cash provided by (used for) financing activities	15	493
Increase (decrease) for the period	(49)	144
Beginning of period	75	14
End of period	26	158
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Cash flows from operating activities	0	0
Additions to properties, plants and equipment	0	0
Payments to Acquire Equity Method Investments	0
Proceeds from sale of assets	0	0
Purchases of marketable securities	0	0
Sales and maturities of marketable securities	0	0
Other, net		0
Net Advances to Parent	935,457	703,859
Net cash used for investing activities	935,457	703,859
Net borrowings under credit agreement – HEP	0	0
Redemption of Senior Notes - HEP		0
Redemption of senior notes	0
Purchase of treasury stock	0	0
Dividends	0	0
Payments to Noncontrolling Interests	0	0
Excess tax benefit from equity based compensation		0
Other, net	0	0
Net advances from subsidiaries	(935,457)	(703,859)
Net cash provided by (used for) financing activities	(935,457)	(703,859)
Increase (decrease) for the period	0	0
Beginning of period	0	0
End of period	0	0
Holly Frontier Corp. Before Consolidation of HEP [Member]
Condensed Financial Statements, Captions [Line Items]
Cash flows from operating activities	804,565	725,236
Additions to properties, plants and equipment	(416,611)	(307,476)
Payments to Acquire Equity Method Investments	0
Proceeds from sale of assets	15,187	14,711
Purchases of marketable securities	(402,984)	(762,224)
Sales and maturities of marketable securities	490,251	863,769
Other, net		5,021
Net Advances to Parent	0	0
Net cash used for investing activities	(314,157)	(186,199)
Net borrowings under credit agreement – HEP	0
Redemption of Senior Notes - HEP		0
Redemption of senior notes	(155,156)
Purchase of treasury stock	(481,766)	(133,150)
Dividends	(187,372)	(485,766)
Payments to Noncontrolling Interests	0	0
Excess tax benefit from equity based compensation		4,482
Other, net	(2,394)	(3,995)
Net advances from subsidiaries	0	0
Net cash provided by (used for) financing activities	(826,688)	(618,429)
Increase (decrease) for the period	(336,280)	(79,392)
Beginning of period	565,155	933,751
End of period	228,875	854,359
Non-Guarantor Non-Restricted Subsidiaries (HEP Segment) [Member]
Condensed Financial Statements, Captions [Line Items]
Cash flows from operating activities	165,527	140,154
Additions to properties, plants and equipment	0	0
Payments to Acquire Equity Method Investments	(54,641)
Proceeds from sale of assets	644	0
Purchases of marketable securities	0	0
Sales and maturities of marketable securities	0	0
Other, net		0
Net Advances to Parent	0	0
Net cash used for investing activities	(111,283)	(61,657)
Net borrowings under credit agreement – HEP	83,000	192,000
Redemption of Senior Notes - HEP		(156,188)
Redemption of senior notes	0
Purchase of treasury stock	0	0
Dividends	0	0
Payments to Noncontrolling Interests	(128,117)	(117,930)
Excess tax benefit from equity based compensation		0
Other, net	(1,101)	(1,064)
Net advances from subsidiaries	0	0
Net cash provided by (used for) financing activities	(46,218)	(83,182)
Increase (decrease) for the period	8,026	(4,685)
Beginning of period	2,830	6,352
End of period	10,856	1,667
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Cash flows from operating activities	(66,751)	(59,457)
Additions to properties, plants and equipment	0	0
Proceeds from sale of assets	0	0
Purchases of marketable securities	0	0
Sales and maturities of marketable securities	0	0
Other, net		0
Net Advances to Parent	0	0
Net cash used for investing activities	0	0
Redemption of Senior Notes - HEP		0
Redemption of senior notes	0
Purchase of treasury stock	0	0
Dividends	0	0
Payments to Noncontrolling Interests	66,751	59,457
Excess tax benefit from equity based compensation		0
Other, net	0	0
Net advances from subsidiaries	0	0
Net cash provided by (used for) financing activities	66,751	59,457
Increase (decrease) for the period	0	0
Beginning of period	0	0
End of period	0	0
HEP [Member]
Condensed Financial Statements, Captions [Line Items]
Additions to properties, plants and equipment	(57,286)	(61,657)
Payments to Acquire Equity Method Investments	54,641	0
Redemption of senior notes	0	(156,188)
Beginning of period	2,830
End of period	10,856
HEP [Member] | Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Additions to properties, plants and equipment	0	0
Net borrowings under credit agreement – HEP		0
HEP [Member] | Guarantor Restricted Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Additions to properties, plants and equipment	0	0
Net borrowings under credit agreement – HEP		0
HEP [Member] | Non Guarantor Restricted Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Additions to properties, plants and equipment	0	0
Net borrowings under credit agreement – HEP		0
HEP [Member] | Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Additions to properties, plants and equipment	0
HEP [Member] | Holly Frontier Corp. Before Consolidation of HEP [Member]
Condensed Financial Statements, Captions [Line Items]
Additions to properties, plants and equipment	0	0
Net borrowings under credit agreement – HEP		0
HEP [Member] | Non-Guarantor Non-Restricted Subsidiaries (HEP Segment) [Member]
Condensed Financial Statements, Captions [Line Items]
Additions to properties, plants and equipment	(57,286)	(61,657)
HEP [Member] | Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Additions to properties, plants and equipment	0	0
Payments to Acquire Equity Method Investments	0
Net borrowings under credit agreement – HEP	$ 0	$ 0