Property, Plant and Equipment

6 Months Ended

Jun. 30, 2021

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 of continuing operations:

	June 30,				December 31,
In thousands	2021		2020		2020
NW Natural:
NGD plant in service	$	3,623,092	$	3,404,145	$	3,548,543
NGD work in progress	99,646		90,903		63,901
Less: Accumulated depreciation	1,068,603		1,040,616		1,055,809
NGD plant, net	2,654,135		2,454,432		2,556,635
Other plant in service	66,315		64,317		66,300
Other construction work in progress	5,817		5,342		5,032
Less: Accumulated depreciation	20,140		19,144		19,637
Other plant, net	51,992		50,515		51,695
Total property, plant, and equipment, net	$	2,706,127	$	2,504,947	$	2,608,330
Other (NW Holdings):
Other plant in service	$	54,922	$	44,195	$	50,263
Less: Accumulated depreciation	5,120		2,539		3,823
Other plant, net	$	49,802	$	41,656	$	46,440
NW Holdings:
Total property, plant, and equipment, net	$	2,755,929	$	2,546,603	$	2,654,770
NW Natural:
Capital expenditures in accrued liabilities	$	37,968	$	31,847	$	25,129
NW Holdings:
Capital expenditures in accrued liabilities	$	38,395	$	31,847	$	25,129

NW Holdings

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

NW Natural

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