Segment Information (Details)	3 Months Ended
	Mar. 31, 2016 operating_segments mi bbl
Segment Reporting Information [Line Items]
Segment Reporting, Number of Business Segments | operating_segments	2
Pipeline, Miles | mi	685
Active Storage Capacity	8,200,000
Pump Station [Member] | Logistics Segment [Member]
Segment Reporting Information [Line Items]
Property, Plant and Equipment, Operated, Number of Significant Assets	15
Crude Oil Storage Tanks [Member] | Logistics Segment [Member]
Segment Reporting Information [Line Items]
Active Storage Capacity	828,000
Property, Plant and Equipment, Operated, Number of Significant Assets	31
Truck Loading and Unloading Locations [Member] | Logistics Segment [Member]
Segment Reporting Information [Line Items]
Property, Plant and Equipment, Operated, Number of Significant Assets	8
Storage Tanks [Member] | Logistics Segment [Member]
Segment Reporting Information [Line Items]
Active Storage Capacity	7,400,000