Property, Plant and Equipment

6 Months Ended

Jun. 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:

	June 30,				December 31,
In thousands	2023		2022		2022
NW Natural:
NGD plant in service	$	4,060,392	$	3,782,197	$	3,992,676
NGD construction work in progress	123,163		195,118		78,897
Less: Accumulated depreciation	1,146,202		1,121,444		1,115,690
NGD plant, net	3,037,353		2,855,871		2,955,883
Other plant in service	70,364		69,623		70,368
Other construction work in progress	7,181		5,529		6,606
Less: Accumulated depreciation	22,068		21,167		21,541
Other plant, net	55,477		53,985		55,433
Total property, plant, and equipment, net	$	3,092,830	$	2,909,856	$	3,011,316
Other (NW Holdings):
Other plant in service	$	122,161	$	59,718	$	92,979
Other construction work in progress	8,732		17,051		20,040
Less: Accumulated depreciation	12,960		7,944		9,935
Other plant, net	$	117,933	$	68,825	$	103,084
NW Holdings:
Total property, plant, and equipment, net	$	3,210,763	$	2,978,681	$	3,114,400
NW Natural:
Capital expenditures in accrued liabilities	$	28,466	$	44,052	$	24,584
NW Holdings:
Capital expenditures in accrued liabilities	$	31,439	$	45,079	$	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.