NORTHWEST PIPELINE LLC SEC EDGAR Filings (CIK 0000110019)

SEC EDGAR filings, ownership reports, and insider transactions for NORTHWEST PIPELINE LLC.

Industry
Natural Gas Transmission (Office Of Energy & Transportation)
Business address
295 Chipeta Way, Salt Lake City, UT, 84108
Fiscal year end
31 December
Former names
NORTHWEST PIPELINE GP (to 08 May 2013), NORTHWEST PIPELINE CORP (to 12 Sep 2007)
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NORTHWEST PIPELINE LLC has filed 222 SEC EDGAR filings since 28 Feb 1995

Latest Filings

Recent SEC filings for NORTHWEST PIPELINE LLC including 8-K, 10-Q, 10-K and more.

Form type Document Filing Description Filing date Reporting date File number(s)
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 01 Dec 2025 01 Dec 2025 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 03 Nov 2025 30 Sep 2025 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 04 Aug 2025 30 Jun 2025 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 05 May 2025 31 Mar 2025 001-07414
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 25 Feb 2025 31 Dec 2024 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 06 Nov 2024 30 Sep 2024 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 05 Aug 2024 30 Jun 2024 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 06 May 2024 31 Mar 2024 001-07414
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 21 Feb 2024 31 Dec 2023 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 01 Nov 2023 30 Sep 2023 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 02 Aug 2023 30 Jun 2023 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 03 May 2023 31 Mar 2023 001-07414
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 27 Feb 2023 31 Dec 2022 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 31 Oct 2022 30 Sep 2022 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 01 Aug 2022 30 Jun 2022 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 02 May 2022 31 Mar 2022 001-07414
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 28 Feb 2022 31 Dec 2021 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 01 Nov 2021 30 Sep 2021 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 02 Aug 2021 30 Jun 2021 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 03 May 2021 31 Mar 2021 001-07414
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 24 Feb 2021 31 Dec 2020 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 02 Nov 2020 30 Sep 2020 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 03 Aug 2020 30 Jun 2020 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 04 May 2020 31 Mar 2020 001-07414
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 24 Feb 2020 31 Dec 2019 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 31 Oct 2019 30 Sep 2019 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 01 Aug 2019 30 Jun 2019 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 02 May 2019 31 Mar 2019 001-07414
10-K/A Open 10-K/A document View SEC filing for 10-K/A 10-K/A 21 Feb 2019 31 Dec 2018 001-07414
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 21 Feb 2019 31 Dec 2018 001-07414
EFFECT Open EFFECT document View SEC filing for EFFECT 13 Nov 2018 333-228174
424B3 Open 424B3 document View SEC filing for 424B3 424B3 13 Nov 2018 333-228174
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 13 Nov 2018 13 Nov 2018 001-07414
CORRESP Open CORRESP document View SEC filing for CORRESP 08 Nov 2018
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 08 Nov 2018
CORRESP Open CORRESP document View SEC filing for CORRESP 05 Nov 2018
S-4 Open S-4 document View SEC filing for S-4 S-4 05 Nov 2018 333-228174
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 01 Nov 2018 30 Sep 2018 001-07414
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 24 Aug 2018 24 Aug 2018 001-07414
8-K Open 8-K document View SEC filing for 8-K 8-K 21 Aug 2018 21 Aug 2018 001-07414
8-K Open 8-K document View SEC filing for 8-K 8-K 10 Aug 2018 10 Aug 2018 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 02 Aug 2018 30 Jun 2018 001-07414
8-K Open 8-K document View SEC filing for 8-K 8-K 17 Jul 2018 13 Jul 2018 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 03 May 2018 31 Mar 2018 001-07414
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 22 Feb 2018 31 Dec 2017 001-07414
8-K Open 8-K document View SEC filing for 8-K 8-K 30 Jan 2018 30 Jan 2018 001-07414
424B3 Open 424B3 document View SEC filing for 424B3 424B3 30 Jan 2018 333-222633
EFFECT Open EFFECT document View SEC filing for EFFECT 29 Jan 2018 333-222633
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 25 Jan 2018
CORRESP Open CORRESP document View SEC filing for CORRESP 25 Jan 2018
CORRESP Open CORRESP document View SEC filing for CORRESP 19 Jan 2018
S-4 Open S-4 document View SEC filing for S-4 S-4 19 Jan 2018 333-222633
8-K Open 8-K document View SEC filing for 8-K 8-K 22 Nov 2017 17 Nov 2017 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 02 Nov 2017 30 Sep 2017 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 03 Aug 2017 30 Jun 2017 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 04 May 2017 31 Mar 2017 001-07414
8-K Open 8-K document View SEC filing for 8-K 8-K 03 Apr 2017 03 Apr 2017 001-07414
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 30 Mar 2017 29 Mar 2017 001-07414
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 22 Feb 2017 31 Dec 2016 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 31 Oct 2016 30 Sep 2016 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 02 Aug 2016 30 Jun 2016 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 05 May 2016 31 Mar 2016 001-07414
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 24 Feb 2016 31 Dec 2015 001-07414
8-K Open 8-K document View SEC filing for 8-K 8-K 23 Dec 2015 18 Dec 2015 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 29 Oct 2015 30 Sep 2015 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 30 Jul 2015 30 Jun 2015 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 30 Apr 2015 31 Mar 2015 001-07414
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 25 Feb 2015 31 Dec 2014 001-07414
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 03 Feb 2015 02 Feb 2015 001-07414
8-K Open 8-K document View SEC filing for 8-K LIVE FILING 04 Dec 2014 01 Dec 2014 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 30 Oct 2014 30 Sep 2014 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 31 Jul 2014 30 Jun 2014 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 01 May 2014 31 Mar 2014 001-07414
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 26 Feb 2014 31 Dec 2013 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 31 Oct 2013 30 Sep 2013 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 31 Jul 2013 30 Jun 2013 001-07414
8-K Open 8-K document View SEC filing for 8-K LIVE FILING 03 Jul 2013 01 Jul 2013 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 08 May 2013 31 Mar 2013 001-07414
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K FORM 10-K 27 Feb 2013 31 Dec 2012 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 31 Oct 2012 30 Sep 2012 001-07414
8-K Open 8-K document View SEC filing for 8-K 8-K 27 Sep 2012 25 Sep 2012 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 02 Aug 2012 30 Jun 2012 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 26 Apr 2012 31 Mar 2012 001-07414
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K FORM 10-K 27 Feb 2012 31 Dec 2011 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 02 Nov 2011 30 Sep 2011 001-07414
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 04 Aug 2011 30 Jun 2011 001-07414
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 09 Jun 2011 03 Jun 2011 001-07414
10-Q Open 10-Q document View SEC filing for 10-Q FORM 10-Q 05 May 2011 31 Mar 2011 001-07414
10-K Open 10-K document View SEC filing for 10-K FORM 10-K 24 Feb 2011 31 Dec 2010 001-07414
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 07 Feb 2011 005-35583
10-Q Open 10-Q document View SEC filing for 10-Q FORM 10-Q 28 Oct 2010 30 Sep 2010 001-07414
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 29 Jul 2010 29 Jul 2010 001-07414
10-Q Open 10-Q document View SEC filing for 10-Q FORM 10-Q 29 Jul 2010 30 Jun 2010 001-07414
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 07 Jul 2010
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 07 Jul 2010
CORRESP Open CORRESP document View SEC filing for CORRESP 18 Jun 2010
CORRESP Open CORRESP document View SEC filing for CORRESP 04 Jun 2010
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 05 May 2010 05 May 2010 001-07414
10-Q Open 10-Q document View SEC filing for 10-Q FORM 10-Q 05 May 2010 31 Mar 2010 001-07414
10-K Open 10-K document View SEC filing for 10-K FORM 10-K 23 Feb 2010 31 Dec 2009 001-07414
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 22 Feb 2010 17 Feb 2010 001-07414
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 18 Feb 2010 18 Feb 2010 001-07414
SC 13G Open SC 13G document View SEC filing for SC 13G 29 Jan 2010 005-35583
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 26 Jan 2010 20 Jan 2010 001-07414

About this filer

NORTHWEST PIPELINE LLC files with the SEC under CIK 0000110019. This page aggregates EDGAR filings and related ownership activity.

Industry: Natural Gas Transmission.

FAQ

What is a CIK?
A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.
Why are some filings missing?
New filings appear as the SEC updates EDGAR, and older records can vary by availability.
How often is this page updated?
Updates follow new EDGAR submissions and periodic data refreshes.

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