Selected Quarterly Financial Data (Table)

12 Months Ended

Sep. 30, 2018

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information

Summarized unaudited quarterly financial data is presented below. The sum of net income per share by quarter may not equal the net income per share for the fiscal year due to variations in the weighted average shares outstanding used in computing such amounts. Our businesses are seasonal due to weather conditions in our service areas. For further information on its effects on quarterly results, see the “Results of Operations” discussion included in the “Management’s Discussion and Analysis of Financial Condition and Results of Operations” section herein.

	Quarter Ended
	December 31			March 31			June 30			September 30
	(In thousands, except per share data)
Fiscal year 2018:
Operating revenues
Distribution	$	860,792		$	1,199,291		$	535,488		$	407,476
Pipeline and storage	126,463			120,955			127,633			132,662
Intersegment eliminations	(98,063		)	(100,837		)	(100,876		)	(95,438		)
Total operating revenues	889,192			1,219,409			562,245			444,700
Purchased gas cost	366,917			626,960			130,886			43,085
Operating income	241,561			268,988			122,993			89,592
Net Income	314,132			178,992			71,193			38,747
Basic and diluted earnings per share
Net income per share — basic and diluted	$	2.89		$	1.60		$	0.64		$	0.35

	Quarter Ended
	December 31			March 31			June 30			September 30
	(In thousands, except per share data)
Fiscal year 2017:
Operating revenues
Distribution	$	754,656		$	962,541		$	494,060		$	437,918
Pipeline and storage	109,952			111,972			117,283			117,823
Intersegment eliminations	(84,440		)	(86,327		)	(84,842		)	(90,861		)
Total operating revenues	780,168			988,186			526,501			464,880
Purchased gas cost	311,305			427,494			114,176			72,561
Operating income	209,918			285,172			140,664			91,792
Income from continuing operations	114,038			162,012			70,808			35,853
Income from discontinued operations	10,994			—			—			—
Gain on sale of discontinued operations	—			2,716			—			—
Net Income	125,032			164,728			70,808			35,853
Basic and diluted earnings per share
Income per share from continuing operations	$	1.08		$	1.52		$	0.67		$	0.34
Income per share from discontinued operations	0.11			0.03			—			—
Net income per share — basic and diluted	$	1.19		$	1.55		$	0.67		$	0.34