Form 8-K - Current report:
SEC Accession No. 0001733998-25-000111
Filing Date
2025-06-24
Accepted
2025-06-23 21:00:25
Documents
15
Period of Report
2025-06-23
Items
Item 8.01: Other Events

Document Format Files

Seq Description Document Type Size
1 8-K nwn-20250623.htm   iXBRL 8-K 47784
6 nwn-20250623_g1.jpg GRAPHIC 57055
7 nwn-20250623_g2.jpg GRAPHIC 38736
  Complete submission text file 0001733998-25-000111.txt   455630

Data Files

Seq Description Document Type Size
2 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT nwn-20250623.xsd EX-101.SCH 2824
3 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT nwn-20250623_def.xml EX-101.DEF 16357
4 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT nwn-20250623_lab.xml EX-101.LAB 28855
5 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT nwn-20250623_pre.xml EX-101.PRE 16705
17 EXTRACTED XBRL INSTANCE DOCUMENT nwn-20250623_htm.xml XML 5087
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: 8-K | Act: 34 | File No.: 001-15973 | Film No.: 251066448
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: 8-K | Act: 34 | File No.: 001-38681 | Film No.: 251066447
SIC: 4924 Natural Gas Distribution
(CF Office: 01 Energy & Transportation)