Major Customer and Concentrations of Credit Risk (Notes)	6 Months Ended
	Jun. 30, 2014
Major Customer and Concentrations of Credit Risk [Abstract]
Major Customer and Concentrations of Credit Risk	MAJOR CUSTOMER AND CONCENTRATIONS OF CREDIT RISK Tesoro accounted for 88% of our total revenues for the three and six months ended June 30, 2014 and 90% and 91% of our total revenues for the three and six months ended June 30, 2013, respectively. The revenues for each period are not comparable as no revenue was recorded by the Predecessor for transactions with Tesoro in the Terminalling and Transportation segment prior to the Acquisitions from Tesoro.

The entire disclosure for any concentrations existing at the date of the financial statements that make an entity vulnerable to a reasonably possible, near-term, severe impact. This disclosure informs financial statement users about the general nature of the risk associated with the concentration, and may indicate the percentage of concentration risk as of the balance sheet date.

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