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Segment Information (Tables)
 3 Months Ended
Mar. 31, 2019
Segment Reporting [Abstract]  
Schedule of Segment Reporting Information by Segment
The following table presents financial information about our reportable segments:
 
 
Three Months Ended
 
 
March 31,
 
 
2019
 
2018
(in thousands)
 
 
 
 
Operating Revenues, Unaffiliated Customers
 
 
 
 
Regulated Energy
 
$
100,739

 
$
105,954

Unregulated Energy
 
126,877

 
133,402

Total operating revenues, unaffiliated customers
 
$
227,616

 
$
239,356

Intersegment Revenues (1)
 
 
 
 
Regulated Energy
 
$
2,879

 
$
3,439

Unregulated Energy
 
11,225

 
11,965

Other businesses
 
132

 
194

Total intersegment revenues
 
$
14,236

 
$
15,598

Operating Income
 
 
 
 
Regulated Energy
 
$
29,741

 
$
26,711

Unregulated Energy
 
15,127

 
13,684

Other businesses and eliminations
 
(875
)
 
11

Operating income
 
43,993

 
40,406

Other income (expense), net
 
(45
)
 
68

Interest charges
 
5,710

 
3,664

Income before Income Taxes
 
38,238

 
36,810

Income taxes
 
9,574

 
9,955

Net Income
 
$
28,664

 
$
26,855

 
(1) All significant intersegment revenues are billed at market rates and have been eliminated from consolidated operating revenues.
(in thousands)
 
March 31, 2019
 
December 31, 2018
Identifiable Assets
 
 
 
 
Regulated Energy segment
 
$
1,343,061

 
$
1,345,805

Unregulated Energy segment
 
296,836

 
306,045

Other businesses and eliminations
 
42,900

 
41,821

Total identifiable assets
 
$
1,682,797

 
$
1,693,671