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Quarterly Financial Information
 12 Months Ended
Dec. 31, 2018
Schedule Of Quarterly Financial Information [Abstract]  
Quarterly Financial Information [Text Block]
NORTHWEST NATURAL HOLDING COMPANY
QUARTERLY FINANCIAL INFORMATION (UNAUDITED)
 
 
NW Holdings
 
 
Quarter ended(1)
In thousands, except per share data
 
March 31
 
June 30
 
September 30
 
December 31
2018
 
 
 
 
 
 
 
 
Operating revenues
 
$
263,635

 
$
124,567

 
$
91,239

 
$
226,702

Net income (loss) from continuing operations
 
42,011

 
(339
)
 
(11,144
)
 
36,783

Loss from discontinued operations, net of tax
 
(474
)
 
(659
)
 
(650
)
 
(959
)
Net income (loss)
 
41,537

 
(998
)
 
(11,794
)
 
35,824

Average common shares outstanding:
 
 
 
 
 
 
 
 
Basic
 
28,753

 
28,791

 
28,815

 
28,851

Diluted
 
28,803

 
28,791

 
28,815

 
28,940

Earnings (loss) from continuing operations per share of common stock:
 
 
 
 
 
 
 
 
Basic
 
1.46

 
(0.01
)
 
(0.39
)
 
1.27

Diluted
 
1.46

 
(0.01
)
 
(0.39
)
 
1.27

Loss from discontinued operations per share of common stock:
 
 
 
 
 
 
 
 
Basic
 
(0.02
)
 
(0.02
)
 
(0.02
)
 
(0.03
)
Diluted
 
(0.02
)
 
(0.02
)
 
(0.02
)
 
(0.03
)
Earnings (loss) per share of common stock:
 
 
 
 
 
 
 
 
Basic
 
1.44

 
(0.03
)
 
(0.41
)
 
1.24

Diluted
 
1.44

 
(0.03
)
 
(0.41
)
 
1.24

 
 
 
 
 
 
 
 
 
2017
 
 

 
 
 
 

 
 

Operating revenues
 
$
295,724

 
$
134,476

 
$
86,212

 
$
238,626

Net income (loss) from continuing operations
 
41,397

 
4,075

 
(7,887
)
 
34,488

Loss from discontinued operations, net of tax
 
(1,087
)
 
(1,346
)
 
(608
)
 
(124,655
)
Net income (loss)
 
40,310

 
2,729

 
(8,495
)
 
(90,167
)
Average common shares outstanding:
 
 
 
 
 
 
 
 
Basic
 
28,633

 
28,648

 
28,678

 
28,716

Diluted
 
28,723

 
28,717

 
28,678

 
28,797

Earnings (loss) from continuing operations per share of common stock:
 
 
 
 
 
 
 
 
Basic
 
1.45

 
0.14

 
(0.28
)
 
1.20

Diluted
 
1.44

 
0.14

 
(0.28
)
 
1.20

Loss from discontinued operations per share of common stock:
 
 
 
 
 
 
 
 
Basic
 
(0.04
)
 
(0.04
)
 
(0.02
)
 
(4.34
)
Diluted
 
(0.04
)
 
(0.04
)
 
(0.02
)
 
(4.33
)
Earnings (loss) per share of common stock:
 
 
 
 
 
 
 
 
Basic
 
1.41

 
0.10

 
(0.30
)
 
(3.14
)
Diluted
 
1.40

 
0.10

 
(0.30
)
 
(3.13
)
(1)
Quarterly earnings (loss) per share are based upon the average number of common shares outstanding during each quarter. Variations in earnings between quarterly periods are due primarily to the seasonal nature of our business.

NORTHWEST NATURAL GAS COMPANY
QUARTERLY FINANCIAL INFORMATION (UNAUDITED)
 
 
NW Natural
 
 
Quarter ended
In thousands
 
March 31
 
June 30
 
September 30
 
December 31
2018
 
 
 
 
 
 
 
 
Operating revenues
 
$
263,635

 
$
124,563

 
$
91,227

 
$
226,146

Net income (loss) from continuing operations
 
42,014

 
(271
)
 
(11,275
)
 
37,581

Loss from discontinued operations, net of tax
 
(477
)
 
(727
)
 
(519
)
 
—

Net income (loss)
 
41,537

 
(998
)
 
(11,794
)
 
37,581

 
 
 
 
 
 
 
 
 
2017
 
 

 
 
 
 

 
 

Operating revenues
 
$
295,668

 
$
134,420

 
$
86,157

 
$
238,793

Net income (loss) from continuing operations
 
41,438

 
4,072

 
(7,876
)
 
34,086

Loss from discontinued operations, net of tax
 
(1,128
)
 
(1,343
)
 
(619
)
 
(124,253
)
Net income (loss)
 
40,310

 
2,729

 
(8,495
)
 
(90,167
)