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Filing Detail
Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001733998-22-000005
Filing Date
2022-02-25
Accepted
2022-02-25 15:29:27
Documents
122
Period of Report
2021-12-31

Document Format Files

Seq Description Document Type Size
1 10-K nwn-20211231.htm   iXBRL 10-K 5151028
2 EX-3.C ex3c-nw_holdingsxamendedxa.htm EX-3.C 73423
3 EX-3.D ex3d-nw_naturalxamendedxan.htm EX-3.D 72285
4 EX-10.LL ex10ll-2022nwngsaipplandoc.htm EX-10.LL 17477
5 EX-10.O ex10o-executiveannualincen.htm EX-10.O 38357
6 EX-10.W ex10w-2022x2024pspgrantagr.htm EX-10.W 83713
7 EX-10.Z ex10z-2022rsuofficergranta.htm EX-10.Z 85190
8 EX-21 ex2112312021.htm EX-21 30637
9 EX-23.A ex23a2021consentofpublicac.htm EX-23.A 2472
10 EX-23.B ex23b2021consentofpublicac.htm EX-23.B 2340
11 EX-31.1 ex311q42021_ceo.htm EX-31.1 7732
12 EX-31.2 ex312q42021_cfo.htm EX-31.2 7790
13 EX-31.3 ex313q42021_ceo.htm EX-31.3 7737
14 EX-31.4 ex314q42021_cfo.htm EX-31.4 7768
15 EX-32.1 ex321q42021_ceocfo.htm EX-32.1 4668
16 EX-32.2 ex322q42021_ceocfo.htm EX-32.2 4686
22 GRAPHIC image.jpg GRAPHIC 56967
23 GRAPHIC image1.jpg GRAPHIC 17405
24 GRAPHIC image2.jpg GRAPHIC 12457
25 GRAPHIC image3.jpg GRAPHIC 6406
26 nwn-20211231_g1.jpg GRAPHIC 57055
27 nwn-20211231_g2.jpg GRAPHIC 38736
  Complete submission text file 0001733998-22-000005.txt   22536077

Data Files

Seq Description Document Type Size
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18 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT nwn-20211231_cal.xml EX-101.CAL 139303
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20 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT nwn-20211231_lab.xml EX-101.LAB 1354665
21 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT nwn-20211231_pre.xml EX-101.PRE 1079276
116 EXTRACTED XBRL INSTANCE DOCUMENT nwn-20211231_htm.xml XML 4591413
Mailing Address 250 SW TAYLOR STREET PORTLAND OR 97204
Business Address 250 SW TAYLOR STREET PORTLAND OR 97204 5032264211
NORTHWEST NATURAL GAS CO (Filer) CIK: 0000073020 (see all company filings)

IRS No.: 930256722 | State of Incorp.: OR | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-15973 | Film No.: 22679205
SIC: 4924 Natural Gas Distribution

Mailing Address 250 SW TAYLOR STREET PORTLAND OR 97204
Business Address 250 SW TAYLOR STREET PORTLAND OR 97204 503-226-4211
Northwest Natural Holding Co (Filer) CIK: 0001733998 (see all company filings)

IRS No.: 824710680 | State of Incorp.: OR | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-38681 | Film No.: 22679204
SIC: 4924 Natural Gas Distribution