EARNINGS PER SHARE EARNINGS PER SHARE (Notes)

12 Months Ended

Dec. 31, 2018

Earnings Per Share [Abstract]

Earnings Per Share [Text Block]

EARNINGS PER SHARE

The following tables set forth the computation of basic and diluted EPS for the periods indicated:

	Year Ended December 31, 2018
	Income		Shares	Per Share Amount
	(Thousands, except per share amounts)
Basic EPS
Net income attributable to ONEOK available for common stock	$	1,150,603	411,485	$	2.80
Diluted EPS
Effect of dilutive securities	—		2,710
Net income attributable to ONEOK available for common stock and common stock equivalents	$	1,150,603	414,195	$	2.78

	Year Ended December 31, 2017
	Income		Shares	Per Share Amount
	(Thousands, except per share amounts)
Basic EPS
Net income attributable to ONEOK available for common stock	$	387,074	297,477	$	1.30
Diluted EPS
Effect of dilutive securities	—		2,303
Net income 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
Net income attributable to ONEOK available for common stock	$	352,039	211,128	$	1.67
Diluted EPS
Effect of dilutive securities	—		1,255
Net income attributable to ONEOK available for common stock and common stock equivalents	$	352,039	212,383	$	1.66