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SEC registrant · CIK 0000073020

NORTHWEST NATURAL GAS CO

NORTHWEST NATURAL GAS CO (CIK 0000073020, EIN 93-0256722) reported revenue of $762.17 million ($762,173,000) for FY2017 (2017-01-01 to 2017-12-31) and net income of -$55.62 million (-$55,623,000) for FY2017 (2017-01-01 to 2017-12-31), as filed in its 10-K filed 2018-02-23 (accession 0000073020-18-000008).

Figures are as filed with the SEC in XBRL, in whole US dollars unless stated, for the company's own fiscal years (fiscal year ends December 31).

Data as of Oct 21, 2026 (Olympus publication) · Markdown version

  • Values are as filed by the company in its 10-K and 10-Q XBRL data. When a later filing restates a value, the latest filed value is shown and the first reported value is noted.

Identifiers

As published in the company's EDGAR submissions record.

IdentifierValue
CIK0000073020
EIN93-0256722
SIC industry code4924 Natural Gas Distribution
State or country of incorporationOR
Fiscal year endDecember 31
Entity typeoperating
Olympus entity IDorg_5z5m05xna225cefqj8qyzg2mw8
  • The EIN is the one the filer gave to EDGAR. The SEC does not verify it; Olympus checks only that it has nine digits and a prefix the IRS assigns.

Latest annual financial metrics

The latest annual value of each standardised metric, with the filing it was taken from.

MetricValueFiscal periodPeriodFormFiledAccession numberXBRL concept
Revenue$762,173,000FY20172017-01-01 to 2017-12-3110-K2018-02-230000073020-18-000008Revenues
Net income-$55,623,000FY20172017-01-01 to 2017-12-3110-K2018-02-230000073020-18-000008NetIncomeLoss
Total assets$3,039,746,000FY2017as of 2017-12-3110-K2018-02-230000073020-18-000008Assets
Stockholders' equity$742,776,000FY2017as of 2017-12-3110-K2018-02-230000073020-18-000008StockholdersEquity
Operating cash flow$206,704,000FY20172017-01-01 to 2017-12-3110-K2018-02-230000073020-18-000008NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
Diluted earnings per share-$1.94 per shareFY20172017-01-01 to 2017-12-3110-K2018-02-230000073020-18-000008EarningsPerShareDiluted
Shares outstanding28,751,528 sharesFY2017as of 2018-02-1610-K2018-02-230000073020-18-000008EntityCommonStockSharesOutstanding
  • Accession numbers link to the filing's index on SEC EDGAR.

Revenue and net income history

Every annual revenue and net income value served for fiscal years 2008-2017, newest first, each with its filing.

MetricFiscal periodPeriodValueFormFiledAccession number
RevenueFY20172017-01-01 to 2017-12-31$762,173,00010-K2018-02-230000073020-18-000008
RevenueFY20162016-01-01 to 2016-12-31$675,967,00010-K2018-02-230000073020-18-000008
RevenueFY20152015-01-01 to 2015-12-31$723,791,00010-K2018-02-230000073020-18-000008
RevenueFY20142014-01-01 to 2014-12-31$754,037,00010-K2017-02-270000073020-17-000007
RevenueFY20132013-01-01 to 2013-12-31$758,518,00010-K2016-02-260000073020-16-000038
RevenueFY20122012-01-01 to 2012-12-31$730,607,00010-K2015-02-270000073020-15-000009
RevenueFY20112011-01-01 to 2011-12-31$828,055,00010-K2014-02-280000073020-14-000004
RevenueFY20102010-01-01 to 2010-12-31$792,115,00010-K2013-03-010000073020-13-000007
Net incomeFY20172017-01-01 to 2017-12-31-$55,623,00010-K2018-02-230000073020-18-000008
Net incomeFY20162016-01-01 to 2016-12-31$58,895,00010-K2018-02-230000073020-18-000008
Net incomeFY20152015-01-01 to 2015-12-31$53,703,00010-K2018-02-230000073020-18-000008
Net incomeFY20142014-01-01 to 2014-12-31$58,692,00010-K2017-02-270000073020-17-000007
Net incomeFY20132013-01-01 to 2013-12-31$60,538,00010-K2016-02-260000073020-16-000038
Net incomeFY20122012-01-01 to 2012-12-31$58,779,00010-K2015-02-270000073020-15-000009
Net incomeFY20112011-01-01 to 2011-12-31$63,044,00010-K2014-02-280000073020-14-000004
Net incomeFY20102010-01-01 to 2010-12-31$72,667,00010-K2013-03-010000073020-13-000007
  • Revenue for FY2011 was restated: first reported as $848,796,000 (accession 0000073020-12-000003, filed 2012-02-28).
  • Revenue for FY2010 was restated: first reported as $812,106,000 (accession 0000073020-11-000003, filed 2011-02-25).
  • Net income for FY2012 was restated: first reported as $59,855,000 (accession 0000073020-13-000007, filed 2013-03-01).
  • Net income for FY2011 was restated: first reported as $63,898,000 (accession 0000073020-12-000003, filed 2012-02-28).

Recent 10-K and 10-Q filings

The 12 most recent 10-K, 10-Q and amendment filings in EDGAR, newest first.

FormFiledPeriod of reportAccession numberDocument
10-Q2026-08-052026-06-300001733998-26-000127nwn-20260630.htm
10-Q2026-05-062026-03-310001733998-26-000087nwn-20260331.htm
10-K2026-02-272025-12-310001733998-26-000012nwn-20251231.htm
10-Q2025-11-052025-09-300001733998-25-000176nwn-20250930.htm
10-Q2025-08-052025-06-300001733998-25-000132nwn-20250630.htm
10-Q2025-05-062025-03-310001733998-25-000094nwn-20250331.htm
10-K2025-02-282024-12-310001733998-25-000020nwn-20241231.htm
10-Q2024-11-122024-09-300001733998-24-000125nwn-20240930.htm
10-Q2024-08-022024-06-300001733998-24-000093nwn-20240630.htm
10-Q2024-05-062024-03-310001733998-24-000075nwn-20240331.htm
10-K2024-02-232023-12-310001733998-24-000011nwn-20231231.htm
10-Q2023-11-032023-09-300001733998-23-000067nwn-20230930.htm

Identifier registry

The company's identifiers in the Olympus identifier registry, each with how it was linked and its source.

SchemeValueHow linkedSourcePublished
SEC Central Index Key (CIK) · OLY-US-SEC-CIK0000073020published by the sourcedata.sec.gov/submissions/CIK0000073020.json2026-10-21
Employer Identification Number (EIN) · US-EIN93-0256722published by the sourceaskebsa.dol.gov/FOIA%20Files/2024/Latest/F_5500_2024_Latest.zip2026-10-22
Employer Identification Number (EIN) · US-EIN93-0256722published by the sourcedata.sec.gov/submissions/CIK0000073020.json2026-10-21

Same entity in other Olympus APIs

Records other Olympus APIs serve for this entity, linked through a published identifier (never matched on name).

APIRecordAPI pathLinked through
US Employee Benefits & Form 5500 APIsponsor/v1/form-5500/sponsors/930256722US-EIN 930256722

Sources

  • EDGAR submissions (nightly bulk archive) (company profile and filings) — U.S. Securities and Exchange Commission. EDGAR snapshot sha256:f7d2a4f18cb91aae, source date 2026-10-20. https://data.sec.gov/submissions/CIK0000073020.json
  • EDGAR XBRL company facts (nightly bulk archive) (financial metrics) — U.S. Securities and Exchange Commission. EDGAR snapshot sha256:01e4045aa34d7224, source date 2026-10-20. https://data.sec.gov/api/xbrl/companyfacts/CIK0000073020.json
  • Published by Olympus on Oct 21, 2026.
  • Source data: U.S. Securities and Exchange Commission (EDGAR). Values are as filed by the registrant; Olympus does not audit or adjust them.
  • Olympus is not affiliated with or endorsed by the U.S. Securities and Exchange Commission.

Get this data from the API

The same figures, with provenance on every value, from the API (free API key, reference) or from an AI agent through the Olympus MCP server.

curl
curl -s "https://api.olympus.new-odyssey.com/v1/sec/companies/0000073020" -H "X-API-Key: $OLYMPUS_API_KEY"

curl -s "https://api.olympus.new-odyssey.com/v1/sec/companies/0000073020/financials" -H "X-API-Key: $OLYMPUS_API_KEY"

curl -s "https://api.olympus.new-odyssey.com/v1/sec/companies/0000073020/filings?limit=12" -H "X-API-Key: $OLYMPUS_API_KEY"
MCP tool call
get_sec_company_financials {"cik":"73020"}

On SEC EDGAR

About this data