Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0001733998-25-000094
Filing Date
2025-05-06
Accepted
2025-05-06 13:31:35
Documents
97
Period of Report
2025-03-31

Document Format Files

Seq Description Document Type Size
1 10-Q nwn-20250331.htm   iXBRL 10-Q 2533704
2 EX-31.1 ex3112025q1.htm EX-31.1 8068
3 EX-31.2 ex3122025q1.htm EX-31.2 8127
4 EX-31.3 ex3132025q1.htm EX-31.3 8040
5 EX-31.4 ex3142025q1.htm EX-31.4 8169
6 EX-32.1 ex3212025q1.htm EX-32.1 6036
7 EX-32.2 ex3222025q1.htm EX-32.2 6148
13 nwn-20250331_g1.jpg GRAPHIC 57055
14 nwn-20250331_g2.jpg GRAPHIC 38736
  Complete submission text file 0001733998-25-000094.txt   13179695

Data Files

Seq Description Document Type Size
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9 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT nwn-20250331_cal.xml EX-101.CAL 108984
10 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT nwn-20250331_def.xml EX-101.DEF 591301
11 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT nwn-20250331_lab.xml EX-101.LAB 893635
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100 EXTRACTED XBRL INSTANCE DOCUMENT nwn-20250331_htm.xml XML 2343345
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)

EIN.: 930256722 | State of Incorp.: OR | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 001-15973 | Film No.: 25916473
SIC: 4924 Natural Gas Distribution
(CF Office: 01 Energy & Transportation)

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)

EIN.: 824710680 | State of Incorp.: OR | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 001-38681 | Film No.: 25916472
SIC: 4924 Natural Gas Distribution
(CF Office: 01 Energy & Transportation)