Business Segment Information (Tables)

3 Months Ended

Dec. 31, 2014

Segment Reporting [Abstract]

Financial Segment Information By Segment

Quarter Ended December 31, 2014 (Thousands)
	Exploration and Production	Pipeline and Storage	Gathering	Utility	Energy Marketing	Total Reportable Segments	All Other	Corporate and Intersegment Eliminations	Total Consolidated
Revenue from External Customers	$204,665	$51,745	$146	$210,073	$56,166	$522,795	$884	$230	$523,909
Intersegment Revenues	$—	$21,461	$24,428	$4,534	$206	$50,629	$—	$(50,629)	$—
Segment Profit: Net Income (Loss)	$26,720	$20,778	$11,623	$22,594	$2,826	$84,541	$(6)	$205	$84,740

(Thousands)	Exploration and Production	Pipeline and Storage	Gathering	Utility	Energy Marketing	Total Reportable Segments	All Other	Corporate and Intersegment Eliminations	Total Consolidated
Segment Assets:
At December 31, 2014	$3,346,609	$1,400,955	$352,464	$1,942,168	$103,985	$7,146,181	$76,960	$(78,047)	$7,145,094
At September 30, 2014	$3,100,514	$1,367,181	$326,662	$1,862,850	$76,238	$6,733,445	$86,460	$(80,308)	$6,739,597

Quarter Ended December 31, 2013 (Thousands)
	Exploration and Production	Pipeline and Storage	Gathering	Utility	Energy Marketing	Total Reportable Segments	All Other	Corporate and Intersegment Eliminations	Total Consolidated
Revenue from External Customers	$193,046	$51,212	$235	$230,453	$73,159	$548,105	$1,700	$267	$550,072
Intersegment Revenues	$—	$20,739	$14,350	$4,706	$255	$40,050	$—	$(40,050)	$—
Segment Profit: Net Income (Loss)	$31,097	$19,138	$6,147	$24,215	$1,604	$82,201	$675	$(624)	$82,252