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Segment Disclosures (Notes)
 3 Months Ended
Mar. 31, 2016
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]  
Segment Disclosures
OPERATING SEGMENTS

Our revenues are derived from three operating segments: Gathering, Processing and Terminalling and Transportation. Our Gathering segment consists of crude oil and natural gas gathering systems in the Bakken Shale/Williston Basin area of North Dakota and Montana and the Green River Basin, Uinta Basin and Vermillion Basin in the states of Utah, Colorado and Wyoming. Our Processing segment consists of four gas processing complexes, including Green River Processing, LLC, which owns one fractionation facility and two gas processing complexes. Our Terminalling and Transportation segment consists of crude oil and refined products terminals and marine terminals, storage facilities for crude oil, refined products and petroleum coke handling, rail-car unloading facilities and pipelines, which transport products and crude oil.

Our revenues are generated from third-party contracts and from commercial agreements we have entered into with Tesoro, under which Tesoro pays us fees for gathering crude oil and natural gas, processing natural gas and distributing, transporting and storing crude oil, refined products, natural gas and natural gas liquids. The commercial agreements with Tesoro are described in greater detail in Note 3 to our Annual Report on Form 10-K for the year ended December 31, 2015. We do not have any foreign operations.

Our operating segments are strategic business units that offer different services in various geographical locations. We evaluate the performance of each segment based on its respective operating income. Certain general and administrative expenses are excluded from segment operating income as they are not directly attributable to a specific operating segment. Identifiable assets are those used by the segment, whereas other assets are principally cash and other assets that are not associated with a specific operating segment.

SEGMENT INFORMATION RELATED TO CONTINUING OPERATIONS (in millions)

 
Three Months Ended
March 31,
 
2016
 
2015
Revenues
 
 
 
Gathering:
 
 
 
Affiliate
$
22

 
$
26

Third-party
69

 
51

Total Gathering
91

 
77

Processing
 
 
 
Affiliate
26

 
20

Third-party
45

 
47

Total Processing
71

 
67

Terminalling and Transportation:
 
 
 
Affiliate
121

 
102

Third-party
17

 
17

Total Terminalling and Transportation
138

 
119

Total Segment Revenues
$
300

 
$
263

Segment Operating Income
 
 
 
Gathering
$
40

 
$
34

Processing
29

 
24

Terminalling and Transportation
69

 
58

Total Segment Operating Income
138

 
116

Unallocated general and administrative expenses
(12
)
 
(12
)
Interest and financing costs, net
(44
)
 
(37
)
Equity in earnings of unconsolidated affiliates
4

 
3

Other income, net
6

 
—

Net Earnings
$
92

 
$
70

 
 
 
 
Capital Expenditures
 
 
 
Gathering
$
25

 
$
51

Processing
5

 
1

Terminalling and Transportation
11

 
15

Total Capital Expenditures
$
41

 
$
67