Business Segment Information (Tables)

12 Months Ended

Sep. 30, 2023


	Year Ended September 30, 2023
	Exploration and Production		Pipeline and Storage		Gathering		Utility		Total Reportable Segments		All Other		Corporate and Intersegment Eliminations		Total Consolidated
	(Thousands)
Revenue from External Customers(1)(2)	$	958,455	$	259,646	$	13,891	$	941,779	$	2,173,771	$	—	$	—	$	2,173,771
Intersegment Revenues	$	—	$	119,545	$	216,426	$	581	$	336,552	$	—	$	(336,552)	$	—
Interest Income	$	3,259	$	7,052	$	534	$	6,296	$	17,141	$	—	$	(5,662)	$	11,479
Interest Expense	$	54,317	$	43,499	$	14,989	$	34,233	$	147,038	$	157	$	(15,309)	$	131,886
Depreciation, Depletion and Amortization	$	241,142	$	70,827	$	35,725	$	61,450	$	409,144	$	—	$	429	$	409,573
Income Tax Expense (Benefit)	$	87,796	$	34,489	$	36,128	$	7,267	$	165,680	$	(164)	$	(983)	$	164,533


Segment Profit: Net Income (Loss)	$	232,275	$	100,501	$	99,724	$	48,395	$	480,895	$	(531)	$	(3,498)	$	476,866
Expenditures for Additions to Long-Lived Assets	$	737,725	$	141,877	$	103,295	$	139,922	$	1,122,819	$	—	$	754	$	1,123,573
	At September 30, 2023
	(Thousands)
Segment Assets	$	2,814,218	$	2,427,214	$	912,923	$	2,247,743	$	8,402,098	$	4,795	$	(126,633)	$	8,280,260


	Year Ended September 30, 2022
	Exploration and Production		Pipeline and Storage		Gathering		Utility		Total Reportable Segments		All Other		Corporate and Intersegment Elimination		Total Consolidated
	(Thousands)
Revenue from External Customers(1)(3)	$	1,010,464	$	265,415	$	12,086	$	897,916	$	2,185,881	$	—	$	165	$	2,186,046
Intersegment Revenues	$	—	$	111,629	$	202,757	$	305	$	314,691	$	6	$	(314,697)	$	—
Interest Income	$	1,929	$	2,275	$	198	$	2,730	$	7,132	$	3	$	(1,024)	$	6,111
Interest Expense	$	53,401	$	42,492	$	16,488	$	24,115	$	136,496	$	4	$	(6,143)	$	130,357
Depreciation, Depletion and Amortization	$	208,148	$	67,701	$	33,998	$	59,760	$	369,607	$	—	$	183	$	369,790
Income Tax Expense (Benefit)	$	43,898	$	35,043	$	24,949	$	17,165	$	121,055	$	3	$	(4,429)	$	116,629

Significant Item: Gain on Sale of Assets	$	12,736	$	—	$	—	$	—	$	12,736	$	—	$	—	$	12,736
Segment Profit: Net Income (Loss)	$	306,064	$	102,557	$	101,111	$	68,948	$	578,680	$	(9)	$	(12,650)	$	566,021
Expenditures for Additions to Long-Lived Assets	$	565,791	$	95,806	$	55,546	$	111,033	$	828,176	$	—	$	1,212	$	829,388
	At September 30, 2022
	(Thousands)
Segment Assets	$	2,507,541	$	2,394,697	$	878,796	$	2,299,473	$	8,080,507	$	2,036	$	(186,281)	$	7,896,262


	Year Ended September 30, 2021
	Exploration and Production		Pipeline and Storage		Gathering		Utility		Total Reportable Segments		All Other		Corporate and Intersegment Eliminations		Total Consolidated
	(Thousands)
Revenue from External Customers(1)	$	836,697	$	234,397	$	3,116	$	666,920	$	1,741,130	$	1,173	$	356	$	1,742,659
Intersegment Revenues	$	—	$	109,160	$	190,148	$	331	$	299,639	$	49	$	(299,688)	$	—
Interest Income	$	211	$	1,085	$	259	$	2,117	$	3,672	$	230	$	486	$	4,388
Interest Expense	$	69,662	$	40,976	$	17,493	$	21,795	$	149,926	$	—	$	(3,569)	$	146,357
Depreciation, Depletion and Amortization	$	182,492	$	62,431	$	32,350	$	57,457	$	334,730	$	394	$	179	$	335,303
Income Tax Expense (Benefit)	$	33,370	$	28,812	$	28,876	$	14,007	$	105,065	$	11,438	$	(1,821)	$	114,682
Significant Non-Cash Item: Impairment of Oil and Gas Producing Properties	$	76,152	$	—	$	—	$	—	$	76,152	$	—	$	—	$	76,152
Significant Item: Gain on Sale of Assets	$	—	$	—	$	—	$	—	$	—	$	51,066	$	—	$	51,066
Segment Profit: Net Income (Loss)	$	101,916	$	92,542	$	80,274	$	54,335	$	329,067	$	37,645	$	(3,065)	$	363,647
Expenditures for Additions to Long-Lived Assets	$	381,408	$	252,316	$	34,669	$	100,845	$	769,238	$	—	$	673	$	769,911
	At September 30, 2021
	(Thousands)
Segment Assets	$	2,286,058	$	2,296,030	$	837,729	$	2,148,267	$	7,568,084	$	4,146	$	(107,405)	$	7,464,825

(1)All Revenue from External Customers originated in the United States.

(2)Revenue from one customer of the Company's Exploration and Production segment, exclusive of hedging losses transacted with separate parties, represented approximately $208 million of the Company's consolidated revenue for the year ended September 30, 2023. This one customer was also a customer of the Company's Pipeline and Storage segment, accounting for an additional $14 million of the Company's consolidated revenue for the year ended September 30, 2023.

(3)Revenues from three customers of the Company's Exploration and Production segment, exclusive of hedging losses transacted with separate parties, represented approximately $850 million of the Company's consolidated revenue for the year ended September 30, 2022. These three customers were also customers of the Company's Pipeline and Storage segment, accounting for an additional $15 million of the Company's consolidated revenue for the year ended September 30, 2022.

Schedule of Long-Lived Assets by Geographical Areas


Geographic Information	At September 30
	2023		2022		2021
	(Thousands)
Long-Lived Assets:
United States	$	7,865,832	$	7,135,131	$	6,942,376