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Segment Information
6 Months Ended
Jun. 30, 2021
Segment Reporting [Abstract]  
Schedule of Segment Reporting Information, by Segment The following table presents summary financial information concerning the reportable segment and other of continuing operations. See Note 17 for information regarding discontinued operations for NW Holdings.
Three Months Ended June 30,
In thousandsNGDOther
(NW Natural)
NW NaturalOther
(NW Holdings)
NW Holdings
2021
Operating revenues$139,614 $4,965 $144,579 $4,338 $148,917 
Depreciation and amortization27,273 257 27,530 614 28,144 
Income (loss) from operations11,331 2,808 14,139 (1,515)12,624 
Net income (loss) from continuing operations(1,381)1,970 589 (1,313)(724)
Capital expenditures60,376 693 61,069 3,337 64,406 
2020
Operating revenues$126,992 $4,165 $131,157 $3,814 $134,971 
Depreciation and amortization24,738 248 24,986 850 25,836 
Income (loss) from operations6,434 2,465 8,899 43 8,942 
Net income (loss) from continuing operations(6,347)1,635 (4,712)(420)(5,132)
Capital expenditures61,472 521 61,993 2,843 64,836 

Six Months Ended June 30,
In thousandsNGDOther
(NW Natural)
NW NaturalOther
(NW Holdings)
NW Holdings
2021
Operating revenues$440,952 $15,977 $456,929 $7,934 $464,863 
Depreciation and amortization54,186 513 54,699 1,542 56,241 
Income (loss) from operations97,818 11,439 109,257 (1,927)107,330 
Net income (loss) from continuing operations52,544 8,156 60,700 (1,907)58,793 
Capital expenditures124,368 799 125,167 4,941 130,108 
Total assets at June 30, 20213,587,966 51,466 3,639,432 144,068 3,783,500 
2020
Operating revenues$405,479 $8,207 $413,686 $6,436 $420,122 
Depreciation and amortization48,684 492 49,176 1,335 50,511 
Income (loss) from operations81,692 4,228 85,920 (532)85,388 
Net income (loss) from continuing operations41,596 2,871 44,467 (1,323)43,144 
Capital expenditures117,629 598 118,227 4,055 122,282 
Total assets at June 30, 2020(1)
3,470,306 10,398 3,480,704 144,251 3,624,955 
Total assets at December 31, 2020
3,549,868 49,468 3,599,336 157,043 3,756,379 
(1)     Total assets for NW Holdings exclude assets related to discontinued operations of $16.4 million as of June 30, 2020.
NGD Margin
The following table presents additional segment information concerning NGD margin:
Three Months Ended June 30,Six Months Ended June 30,
In thousands2021202020212020
NGD margin calculation:
NGD distribution revenues$134,849 $122,071 $431,402 $395,632 
Other regulated services4,765 4,921 9,550 9,847 
Total NGD operating revenues139,614 126,992 440,952 405,479 
Less: NGD cost of gas41,249 41,265 153,515 149,860 
          Environmental remediation1,509 1,622 5,286 5,627 
 Revenue taxes5,650 4,454 18,305 16,197 
NGD margin$91,206 $79,651 $263,846 $233,795