Supplemental Quarterly Results

12 Months Ended

Dec. 31, 2017

Supplemental Quarterly Results [Abstract]

SUPPLEMENTAL QUARTERLY RESULTS (UNAUDITED)

The following is a summary of the quarterly results of operations for the years ended December 31, 2017 and 2016:


	1st Quarter		2nd Quarter		3rd Quarter		4th Quarter
(in millions, except per share amounts)	2017
Operating revenues	$	846	$	811	$	737	$	809
Operating income		266		188		110		167
Net income attributable to common stock		281		224		43		267
Earnings per share - Basic		0.57		0.45		0.09		0.53
Earnings per share - Diluted		0.57		0.45		0.09		0.53

	2016
Operating revenues	$	579	$	522	$	651	$	684
Operating income (loss) (1)		(1,100)		(492)		(725)		122
Net loss attributable to common stock		(1,159)		(620)		(735)		(237)
Loss per share - Basic		(3.03)		(1.61)		(1.52)		(0.48)
Loss per share - Diluted		(3.03)		(1.61)		(1.52)		(0.48)

(1) The operating losses for the first, second and third quarters of 2016 included non-cash full cost impairments of natural gas and oil properties of $1,034 million, $470 million, and $817 million, respectively. There was no full cost impairment in the fourth quarter of 2016 and for the year ended December 31, 2017.