Environmental	12 Months Ended
Dec. 31, 2016
Loss Contingencies [Line Items]
Environmental	Environmental We expensed $0.7 million, $3.6 million and $3.1 million for the years ended December 31, 2016, 2015 and 2014, respectively, for long term environmental remediation projects. During the year ended December 31, 2016, we increased certain environmental cost accruals to reflect revisions to the cost estimates and the time frame for which the related environmental remediation and monitoring activities are expected to occur. The accrued environmental liability, net of expected recoveries from indemnifying parties, reflected in our consolidated balance sheets was $7.1 million and $7.7 million at December 31, 2016 and December 31, 2015, respectively, of which $5.4 million and $6.1 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. Under the Omnibus Agreement and certain transportation agreements and purchase agreements with HFC, HFC has agreed to indemnify us, subject to certain monetary and time limitations, for environmental noncompliance and remediation liabilities associated with certain assets transferred to us from HFC and occurring or existing prior to the date of such transfers. As of December 31, 2016 and December 31, 2015, our consolidated balance sheets include additional accrued environmental liabilities of $0.9 million and $6.4 million, respectively, for HFC indemnified liabilities, and other assets included equal and offsetting balances representing amounts due from HFC related to indemnifications for environmental remediation liabilities.

Environmental

12 Months Ended

Dec. 31, 2016

We expensed $0.7 million, $3.6 million and $3.1 million for the years ended December 31, 2016, 2015 and 2014, respectively, for long term environmental remediation projects. During the year ended December 31, 2016, we increased certain environmental cost accruals to reflect revisions to the cost estimates and the time frame for which the related environmental remediation and monitoring activities are expected to occur. The accrued environmental liability, net of expected recoveries from indemnifying parties, reflected in our consolidated balance sheets was $7.1 million and $7.7 million at December 31, 2016 and December 31, 2015, respectively, of which $5.4 million and $6.1 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.

Under the Omnibus Agreement and certain transportation agreements and purchase agreements with HFC, HFC has agreed to indemnify us, subject to certain monetary and time limitations, for environmental noncompliance and remediation liabilities associated with certain assets transferred to us from HFC and occurring or existing prior to the date of such transfers. As of December 31, 2016 and December 31, 2015, our consolidated balance sheets include additional accrued environmental liabilities of $0.9 million and $6.4 million, respectively, for HFC indemnified liabilities, and other assets included equal and offsetting balances representing amounts due from HFC related to indemnifications for environmental remediation liabilities.