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Debt (Carrying Amounts Of Long-Term Debt) (Details) - USD ($)	Dec. 31, 2015	Jun. 30, 2015	Dec. 31, 2014	Mar. 31, 2014	Jun. 30, 2013
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	$ 1,040,040,000		$ 1,054,297,000
Total	1,043,288,000
Long-term Debt and Capital Lease Obligations	1,040,040,000		1,054,297,000
HEP
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	1,008,752,000		866,986,000
Borrowings outstanding under revolving credit agreement	712,000,000		571,000,000
Long-term Debt and Capital Lease Obligations	$ 1,008,752,000		866,986,000
9.875% Senior Notes Due 2017
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage					9.875%
Senior Notes, Noncurrent					$ 286,800,000
6.875% Senior Notes Due 2018
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.875%	6.875%
Long-term Debt, Excluding Current Maturities			154,144,000
Senior Notes, Noncurrent		$ 150,000,000	150,000,000
Debt Instrument, Unamortized Premium			4,144,000
Holly Financing Obligation
Debt Instrument [Line Items]
Capital Lease Obligations	$ 31,288,000		33,167,000
Long-term Debt and Capital Lease Obligations	$ 31,288,000		187,311,000
8.25% Senior Notes Due 2018 \| HEP
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	8.25%			8.25%
Senior Notes, Noncurrent				$ 150,000,000.0
6.5% Senior Notes Due 2020 \| HEP
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.50%
Long-term Debt, Excluding Current Maturities	$ 296,752,000		295,986,000
Senior Notes, Noncurrent	300,000,000		300,000,000
Debt Instrument, Unamortized Discount	$ (3,248,000)		$ (4,014,000)