Business Segment Information (Tables)

9 Months Ended

Jun. 30, 2019

Segment Reporting [Abstract]

Financial Segment Information By Segment

A listing of segment assets at June 30, 2019 and September 30, 2018 is shown in the tables below.  

Quarter Ended June 30, 2019 (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	$158,875	$46,024	$—	$129,977	$21,335	$356,211	$854	$135	$357,200
Intersegment Revenues	$—	$22,943	$32,875	$2,944	$681	$59,443	$—	$(59,443)	$—
Segment Profit: Net Income (Loss)	$26,512	$15,792	$14,638	$7,362	$(1,441)	$62,863	$(3)	$893	$63,753

Nine Months Ended June 30, 2019 (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	$467,853	$148,663	$2	$648,624	$132,435	$1,397,577	$2,170	$244	$1,399,991
Intersegment Revenues	$—	$69,712	$91,931	$9,984	$1,056	$172,683	$—	$(172,683)	$—
Segment Profit: Net Income (Loss)	$86,599	$58,643	$41,511	$68,600	$(1,198)	$254,155	$252	$2,602	$257,009

(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 June 30, 2019	$1,847,706	$1,894,824	$555,185	$1,967,123	$45,736	$6,310,574	$78,528	$(52,855)	$6,336,247
At September 30, 2018	$1,568,563	$1,848,180	$533,608	$1,921,971	$50,971	$5,923,293	$78,109	$35,084	$6,036,486

Quarter Ended June 30, 2018 (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	$135,828	$51,363	$(31)	$128,628	$25,460	$341,248	$1,496	$168	$342,912
Intersegment Revenues	$—	$22,496	$27,908	$3,519	$512	$54,435	$—	$(54,435)	$—
Segment Profit: Net Income (Loss)	$27,817	$20,723	$11,566	$3,930	$(190)	$63,846	$297	$(1,118)	$63,025

Nine Months Ended June 30, 2018 (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	$421,381	$158,387	$41	$599,495	$119,739	$1,299,043	$3,824	$606	$1,303,473
Intersegment Revenues	$—	$67,524	$79,404	$11,401	$589	$158,918	$—	$(158,918)	$—
Segment Profit: Net Income (Loss)	$161,052	$81,909	$68,736	$58,283	$1,434	$371,414	$(214)	$(17,673)	$353,527