Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents (HEP: $18,193 and $5,237, respectively)	$ 1,872,442	$ 1,757,699
Marketable securities	665,694	630,586
Accounts receivable: Product and transportation (HEP: $37,129 and $38,097, respectively)	599,669	587,728
Crude oil resales	56,855	46,502
Accounts receivable, total	656,524	634,230
Inventories: Crude oil and refined products	1,398,769	1,238,678
Materials and supplies (HEP: $1,491 and $1,259, respectively)	72,031	80,954
Inventories, total	1,470,800	1,319,632
Income taxes receivable	37,904	74,957
Prepayments and other (HEP: $1,984 and $2,360, respectively)	59,946	53,161
Total current assets	4,763,310	4,470,265
Properties, plants and equipment, at cost (HEP: $1,158,287 and $1,155,710, respectively)	4,008,803	3,943,114
Less accumulated depreciation (HEP: $(152,710) and $(141,154), respectively)	(794,605)	(748,414)
Property, plant and equipment, net	3,214,198	3,194,700
Marketable securities (long-term)	5,000	5,116
Other assets: Turnaround costs	197,356	151,764
Goodwill (HEP: $288,991 and $288,991, respectively)	2,338,302	2,338,302
Intangibles and other (HEP: $75,007 and $76,300, respectively)	178,006	168,850
Other assets, total	2,713,664	2,658,916
Total assets	10,696,172	10,328,997
Current liabilities:
Accounts payable (HEP: $12,346 and $12,030, respectively)	1,339,419	1,314,151
Income taxes payable	151,403	0
Accrued liabilities (HEP: $14,135 and $23,705, respectively)	127,005	195,077
Deferred income tax liabilities	149,127	145,216
Total current liabilities	1,766,954	1,654,444
Long-term debt (HEP: $811,913 and $864,673, respectively)	1,283,245	1,336,238
Deferred income taxes (HEP: $4,951 and $4,951, respectively)	554,102	536,670
Other long-term liabilities (HEP: $30,192 and $28,683, respectively)	162,824	158,987
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 March 31, 2013 and December 31, 2012	2,560	2,560
Additional capital	3,973,788	3,911,353
Retained earnings	3,225,050	3,054,769
Accumulated other comprehensive income (loss)	3,334	(8,425)
Common stock held in treasury, at cost - 52,635,439 and 52,411,370 shares as of March 31, 2013 and December 31, 2012, respectively	(918,939)	(907,303)
Total HollyFrontier stockholders' equity	6,285,793	6,052,954
Noncontrolling interest	643,254	589,704
Total equity	6,929,047	6,642,658
Total liabilities and equity	10,696,172	10,328,997
HEP [Member]
Current assets:
Cash and cash equivalents (HEP: $18,193 and $5,237, respectively)	18,193	5,237
Accounts receivable: Product and transportation (HEP: $37,129 and $38,097, respectively)	37,129	38,097
Materials and supplies (HEP: $1,491 and $1,259, respectively)	1,491	1,259
Prepayments and other (HEP: $1,984 and $2,360, respectively)	1,984	2,360
Properties, plants and equipment, at cost (HEP: $1,158,287 and $1,155,710, respectively)	1,158,287	1,155,710
Less accumulated depreciation (HEP: $(152,710) and $(141,154), respectively)	(152,710)	(141,154)
Goodwill (HEP: $288,991 and $288,991, respectively)	288,991	288,991
Intangibles and other (HEP: $75,007 and $76,300, respectively)	75,007	76,300
Total assets	1,428,372	1,426,800
Current liabilities:
Accounts payable (HEP: $12,346 and $12,030, respectively)	12,346	12,030
Accrued liabilities (HEP: $14,135 and $23,705, respectively)	14,135	23,705
Long-term debt (HEP: $811,913 and $864,673, respectively)	811,913	864,673
Deferred income taxes (HEP: $4,951 and $4,951, respectively)	4,951	4,951
Other long-term liabilities (HEP: $30,192 and $28,683, respectively)	$ 30,192	$ 28,683