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Operating Segments
 9 Months Ended
Sep. 30, 2016
Segment Reporting [Abstract]  
Operating Segments
Operating Segments

The Corporate and Other Segment primarily includes specific items attributable to Questar Gas' operating segment that are not included in profit measures evaluated by executive management in assessing the segment's performance or in allocating resources.

The net expense for specific items in 2016 primarily related to a $11.9 million ($7.7 million after-tax) charge for transaction costs associated with the Dominion Questar Combination. These costs primarily consist of employee related costs allocated to Questar Gas and are included in other operations and maintenance on the Condensed Statements of Income.

The following table presents segment information pertaining to Questar Gas' operations:

 
Questar Gas
 
Corporate and Other
 
Consolidated Total
 
(in millions)
Three Months Ended September 30, 2016
 
 
 
 

Operating revenue
$
87.9

 
$
—

 
$
87.9

Net loss
(10.0
)
 
(7.7
)
 
(17.7
)
Three Months Ended September 30, 2015
 
 
 
 
 
Operating revenue
$
89.3

 
$
—

 
$
89.3

Net loss
(8.8
)
 
—

 
(8.8
)
Nine Months Ended September 30, 2016
 
 
 
 
 
Operating revenue
$
624.0

 
$
—

 
$
624.0

Net income (loss)
36.0

 
(7.7
)
 
28.3

Nine Months Ended September 30, 2015
 
 
 
 
 
Operating revenue
$
605.8

 
$
—

 
$
605.8

Net income
32.2

 
—

 
32.2