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EARNINGS PER SHARE EARNINGS PER SHARE (Notes)
12 Months Ended
Dec. 31, 2017
Earnings Per Share [Abstract]  
Earnings Per Share [Text Block]
EARNINGS PER SHARE

The following tables set forth the computation of basic and diluted EPS from continuing operations for the periods indicated:
 
 
Year Ended December 31, 2017
 
 
Income
 
Shares
 
Per Share
Amount
 
 
(Thousands, except per share amounts)
Basic EPS from continuing operations
 
 
 
 
 
 
Income from continuing operations attributable to ONEOK available for common stock
 
$
387,074

 
297,477

 
$
1.30

Diluted EPS from continuing operations
 
 

 
 

 
 

Effect of dilutive securities
 

 
2,303

 
 

Income from continuing operations attributable to ONEOK available for common stock and common stock equivalents
 
$
387,074

 
299,780

 
$
1.29

 
 
Year Ended December 31, 2016
 
 
Income
 
Shares
 
Per Share
Amount
 
 
(Thousands, except per share amounts)
Basic EPS from continuing operations
 
 
 
 
 
 
Income from continuing operations attributable to ONEOK available for common stock
 
$
354,090

 
211,128

 
$
1.68

Diluted EPS from continuing operations
 
 

 
 

 
 

Effect of dilutive securities
 

 
1,255

 
 

Income from continuing operations attributable to ONEOK available for common stock and common stock equivalents
 
$
354,090

 
212,383

 
$
1.67

 
 
Year Ended December 31, 2015
 
 
Income
 
Shares
 
Per Share
Amount
 
 
(Thousands, except per share amounts)
Basic EPS from continuing operations
 
 
 
 
 
 
Income from continuing operations attributable to ONEOK available for common stock
 
$
251,058

 
210,208

 
$
1.19

Diluted EPS from continuing operations
 
 

 
 

 
 

Effect of dilutive securities
 

 
333

 
 

Income from continuing operations attributable to ONEOK available for common stock and common stock equivalents
 
$
251,058

 
210,541

 
$
1.19