Unaudited Quarterly Information

Summarized quarterly financial data is as follows:



	Year Ended December 31, 2018
	First Quarter		Second Quarter			Third Quarter		Fourth Quarter
	(in millions, except per share amounts)
CenterPoint Energy
Revenues	$	3,155	$	2,186		$	2,212	$	3,036
Operating income	251		187			226		167
Income (loss) available to common shareholders	165		(75		)	153		90
Basic earnings (loss) per common share (1)	0.38		(0.17		)	0.35		0.18
Diluted earnings (loss) per common share (1)	0.38		(0.17		)	0.35		0.18



	Year Ended December 31, 2018
	First Quarter	Second Quarter		Third Quarter		Fourth Quarter
	(in millions, except per share amounts)
Houston Electric
Revenues	755	854		897		728
Operating income	119	181		227		98
Net income	52	101		143		40
CERC (4)
Revenues	2,400	1,328		1,312		2,303
Operating income (loss)	131	22		(7	)	76
Income (loss) from continuing operations	78	(8	)	(35	)	35
Income (loss) from discontinued operations	52	44		44		(2	)
Net income	130	36		9		33



	Year Ended December 31, 2017
	First Quarter		Second Quarter		Third Quarter			Fourth Quarter
	(in millions, except per share amounts)
CenterPoint Energy
Revenues	$	2,735	$	2,143	$	2,098		$	2,638
Operating income (2)	291		240		297			308
Income available to common shareholders (3)	192		135		169			1,296
Basic earnings per common share (1)	0.45		0.31		0.39			3.01
Diluted earnings per common share (1)	0.44		0.31		0.39			2.99
Houston Electric
Revenues	638		752		843			765
Operating income (2)	85		171		254			127
Net income (3)	18		75		130			210
CERC (4)
Revenues	2,093		1,387		1,251			1,872
Operating income (2)	199		59		31			178
Income (loss) from continuing operations	102		17		(4		)	469
Income from discontinued operations	45		37		42			37
Net income (3)	147		54		38			506


(1)	Quarterly earnings (loss) per common share are based on the weighted average number of shares outstanding during the quarter, and the sum of the quarters may not equal annual earnings (loss) per common share.


(2)	Recast to reflect the adoption of ASU 2017-07. See Note 2(r) for further information.


(3)	Income available to common shareholders and Net income for the fourth quarter 2017 include a reduction in income tax expense of $1,113 million, $158 million and $396 million for CenterPoint Energy, Houston Electric and CERC, respectively, due to the TCJA. See Note 15 for further discussion of the impacts of tax reform implementation.


(4)	Amounts have been recast to reflect discontinued operations in all periods presented.