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QUARTERLY RESULTS OF OPERATIONS - UNAUDITED
 12 Months Ended
Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]  
QUARTERLY RESULTS OF OPERATIONS - UNAUDITED
QUARTERLY RESULTS OF OPERATIONS - UNAUDITED:

The summarized quarterly results of our operations are as follows (in thousands):  
 
 
2016 Quarter Ended
 
2015 Quarter Ended
 
March 31
 
June 30
 
Sept. 30
 
Dec. 31
 
March 31
 
June 30
 
Sept. 30
 
Dec. 31
Operating Revenues
$
187,766

 
$
68,762

 
$
62,025

 
$
142,502

 
$
267,658

 
$
75,812

 
$
58,634

 
$
132,186

Expenses:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Cost of Sales (excluding depreciation)
69,303

 
19,997

 
26,395

 
58,695

 
146,102

 
25,419

 
22,934

 
50,835

Operations and Maintenance
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Including Fixed Charges
46,450

 
42,826

 
41,303

 
47,886

 
52,137

 
42,691

 
42,204

 
48,258

Income Taxes
27,404

 
1,415

 
(2,007
)
 
12,554

 
26,172

 
3,292

 
(2,871
)
 
10,352

Energy and Other Taxes
1,027

 
560

 
838

 
1,195

 
1,420

 
854

 
806

 
951

Total Expenses
144,184

 
64,798

 
66,529

 
120,330

 
225,831

 
72,256

 
63,073

 
110,396

Other Income and Expense
836

 
1,079

 
1,189

 
727

 
760

 
1,670

 
1,010

 
404

Net Income
$
44,418

 
$
5,043

 
$
(3,315
)
 
$
22,899

 
$
42,587

 
$
5,226

 
$
(3,429
)
 
$
22,194



NOTE: Because of the seasonal nature of our business, statements for the three-month periods are not indicative of the results for a full year.