Property, Plant and Equipment

9 Months Ended

Sep. 30, 2023

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	2023		2022		2022
NW Natural:
NGD plant in service	$	4,096,560	$	3,888,092	$	3,992,676
NGD construction work in progress	153,231		161,658		78,897
Less: Accumulated depreciation	1,152,952		1,135,965		1,115,690
NGD plant, net	3,096,839		2,913,785		2,955,883
Other plant in service	70,363		69,626		70,368
Other construction work in progress	8,323		5,112		6,606
Less: Accumulated depreciation	22,331		21,435		21,541
Other plant, net	56,355		53,303		55,433
Total property, plant, and equipment, net	$	3,153,194	$	2,967,088	$	3,011,316
Other (NW Holdings):
Other plant in service	$	127,721	$	66,208	$	92,979
Other construction work in progress	12,404		16,632		20,040
Less: Accumulated depreciation	14,685		8,750		9,935
Other plant, net	$	125,440	$	74,090	$	103,084
NW Holdings:
Total property, plant, and equipment, net	$	3,278,634	$	3,041,178	$	3,114,400
NW Natural:
Capital expenditures in accrued liabilities	$	21,402	$	43,954	$	24,584
NW Holdings:
Capital expenditures in accrued liabilities	$	22,686	$	45,374	$	25,318

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.