Segment Information (Schedule Of Segment Reporting Information) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Segment Reporting Information [Line Items]
Sales and other revenues	$ 3,701,912	$ 5,372,600	$ 6,708,538	$ 10,163,653
Depreciation and amortization	87,803	101,390	167,815	181,938
Income (loss) from operations	589,832	296,345	978,454	567,341
Capital expenditures	144,294	120,488	316,913	244,769
Cash, Cash Equivalents, and Short-term Investments	626,218		626,218		$ 1,042,095
Total assets	9,145,286		9,145,286		9,230,640
Long-term Debt	933,162		933,162		1,054,890
Corporate And Other [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	151	506	369	1,621
Depreciation and amortization	2,915	2,280	5,569	4,310
Income (loss) from operations	(26,739)	(27,802)	(55,688)	(53,357)
Capital expenditures	4,578	9,976	9,003	13,710
Cash, Cash Equivalents, and Short-term Investments	615,751		615,751		1,039,177
Total assets	727,036		727,036		1,150,865
Long-term Debt	32,257		32,257		187,311
Consolidation, Eliminations [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	(68,211)	(64,844)	(140,839)	(136,998)
Depreciation and amortization	(207)	(207)	(414)	(414)
Income (loss) from operations	(576)	(531)	(1,116)	(1,054)
Capital expenditures	0	0	0	0
Cash, Cash Equivalents, and Short-term Investments	0		0		0
Total assets	(309,064)		(309,064)		(320,042)
Long-term Debt	0		0		0
2911 Petroleum Refining [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	3,686,493	5,361,914	6,675,773	10,136,994
Depreciation and amortization	70,435	83,840	133,710	147,381
Income (loss) from operations	576,313	292,214	950,214	543,423
Capital expenditures	128,336	92,334	258,097	192,277
Cash, Cash Equivalents, and Short-term Investments	43		43		88
Total assets	7,268,245		7,268,245		6,965,245
Long-term Debt	0		0		0
HEP [Member]
Segment Reporting Information [Line Items]
Sales and other revenues	83,479	75,024	173,235	162,036
Depreciation and amortization	14,660	15,477	28,950	30,661
Income (loss) from operations	40,834	32,464	85,044	78,329
Capital expenditures	11,380	$ 18,178	49,813	$ 38,782
Cash, Cash Equivalents, and Short-term Investments	10,424		10,424		2,830
Total assets	1,459,069		1,459,069		1,434,572
Long-term Debt	$ 900,905		$ 900,905		$ 867,579