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Filing Detail
Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001733998-24-000011
Filing Date
2024-02-23
Accepted
2024-02-23 15:05:21
Documents
199
Period of Report
2023-12-31

Document Format Files

Seq Description Document Type Size
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  Complete submission text file 0001733998-24-000011.txt   49018855

Data Files

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201 EXTRACTED XBRL INSTANCE DOCUMENT nwn-20231231_htm.xml XML 3527359
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.: 24670648
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)

IRS No.: 824710680 | State of Incorp.: OR | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-38681 | Film No.: 24670647
SIC: 4924 Natural Gas Distribution
(CF Office: 01 Energy & Transportation)