Property, Plant and Equipment

9 Months Ended

Sep. 30, 2022

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment Disclosure [Text Block]

PROPERTY, PLANT, AND EQUIPMENT

The following table sets forth the major classifications of property, plant, and equipment and accumulated depreciation:

	September 30,				December 31,
In thousands	2022		2021		2021
NW Natural:
NGD plant in service	$	3,888,092	$	3,663,699	$	3,721,939
NGD construction work in progress	161,658		120,412		135,398
Less: Accumulated depreciation	1,135,965		1,086,510		1,098,715
NGD plant, net	2,913,785		2,697,601		2,758,622
Other plant in service	69,626		66,314		69,332
Other construction work in progress	5,112		7,228		4,971
Less: Accumulated depreciation	21,435		20,392		20,646
Other plant, net	53,303		53,150		53,657
Total property, plant, and equipment, net	$	2,967,088	$	2,750,751	$	2,812,279
Other (NW Holdings):
Other plant in service	$	66,208	$	53,175	$	57,184
Other construction work in progress	16,632		8,268		8,419
Less: Accumulated depreciation	8,750		5,832		6,512
Other plant, net	$	74,090	$	55,611	$	59,091
NW Holdings:
Total property, plant, and equipment, net	$	3,041,178	$	2,806,362	$	2,871,370
NW Natural:
Capital expenditures in accrued liabilities	$	43,954	$	33,968	$	37,537
NW Holdings:
Capital expenditures in accrued liabilities	$	45,374	$	35,955	$	38,333

NW Natural

Other plant balances include non-utility gas storage assets at the Mist facility and other long-lived assets not related to NGD.

NW Holdings

Other plant balances include long-lived assets associated with water and wastewater operations and non-regulated activities not held by NW Natural or its subsidiaries.