| Parachute Pipeline LLCLocation not reported, CO · Good Standing | Location not reported, CO | LLC | Feb 10, 2009 | Good Standing |
| Williams Production Services, LLC, Colorado Authority Relinquished October 3, 2013Location not reported, CO · Withdrawn | Location not reported, CO | LLC | May 17, 2011 | Withdrawn |
| Callicotte Ranch HOA, LLC, Colorado Authority Relinquished March 15, 2019Location not reported, CO · Withdrawn | Location not reported, CO | LLC | Mar 29, 2013 | Withdrawn |
| Saddlehorn Pipeline Company, LLC, Colorado Authority Relinquished October 31, 2016Location not reported, CO · Withdrawn | Location not reported, CO | LLC | Dec 4, 2014 | Withdrawn |
| Rocky Mountain Midstream LLCLocation not reported, CO · Good Standing | Location not reported, CO | LLC | May 16, 2016 | Good Standing |
| MountainWest Pipeline Services, LLCLocation not reported, CO · Good Standing | Location not reported, CO | LLC | Oct 6, 2016 | Good Standing |
| Rocky Mountain Midstream Pipeline LLCLocation not reported, CO · Good Standing | Location not reported, CO | LLC | Jan 11, 2017 | Good Standing |
| Rocky Mountain Midstream Marketing LLCLocation not reported, CO · Good Standing | Location not reported, CO | LLC | Jan 11, 2017 | Good Standing |
| Rocky Mountain Midstream Water LLC, Colorado Authority Relinquished October 30, 2024Location not reported, CO · Withdrawn | Location not reported, CO | LLC | Feb 7, 2017 | Withdrawn |
| Williams Front Range, LLCLocation not reported, CO · Good Standing | Location not reported, CO | LLC | Jul 18, 2017 | Good Standing |
| Fossett Columbine, LLCLocation not reported, CO · Good Standing | Location not reported, CO | LLC | Aug 2, 2017 | Good Standing |
| Williams Partners Operating LLCLocation not reported, CO · Good Standing | Location not reported, CO | LLC | Aug 28, 2017 | Good Standing |
| NWC Development, LLCLocation not reported, CO · Good Standing | Location not reported, CO | LLC | Oct 27, 2017 | Good Standing |
| Rocky Mountain Midstream Holdings LLCLocation not reported, CO · Good Standing | Location not reported, CO | LLC | Jun 27, 2018 | Good Standing |
| Williams Rocky Mountain Midstream Operating LLC, Colorado Authority Relinquished December 12, 2024Location not reported, CO · Withdrawn | Location not reported, CO | LLC | Jul 13, 2018 | Withdrawn |
| Williams Rocky Mountain Midstream Holdings LLC, Colorado Authority Relinquished December 17, 2024Location not reported, CO · Withdrawn | Location not reported, CO | LLC | Jul 17, 2018 | Withdrawn |
| REP Processing, LLCLocation not reported, CO · Good Standing | Location not reported, CO | LLC | Oct 9, 2018 | Good Standing |
| Williams Pipeline Services LLCLocation not reported, CO · Good Standing | Location not reported, CO | LLC | Oct 11, 2019 | Good Standing |
| Crowheart Energy, LLCLocation not reported, CO · Good Standing | Location not reported, CO | LLC | Apr 23, 2020 | Good Standing |
| Crowheart Energy Services LLC, Colorado Authority Relinquished January 16, 2025Location not reported, CO · Withdrawn | Location not reported, CO | LLC | Apr 23, 2020 | Withdrawn |
| The Williams Companies, Inc.Location not reported, CO · Good Standing | Location not reported, CO | Corporation | Jun 17, 2020 | Good Standing |
| Wamsutter E&P, LLC, Colorado Authority Relinquished February 5, 2025Location not reported, CO · Withdrawn | Location not reported, CO | LLC | May 5, 2021 | Withdrawn |
| Wamsutter Water, LLC, Colorado Authority Relinquished May 13, 2022Location not reported, CO · Withdrawn | Location not reported, CO | LLC | May 11, 2021 | Withdrawn |
| Williams Solar Holdco LLCLocation not reported, CO · Good Standing | Location not reported, CO | LLC | Jun 15, 2021 | Good Standing |
| Williams Gilcrest, LLCLocation not reported, CO · Good Standing | Location not reported, CO | LLC | Jan 5, 2022 | Good Standing |
| Sequent Energy Management LLCLocation not reported, CO · Good Standing | Location not reported, CO | LLC | Mar 30, 2022 | Good Standing |
| MountainWest White River Hub, LLCLocation not reported, CO · Good Standing | Location not reported, CO | LLC | Jun 22, 2023 | Good Standing |
| Williams Holdings and Manufacturing LLCLocation not reported, CO · Good Standing | Location not reported, CO | LLC | Oct 15, 2025 | Good Standing |
| WILLIAMS WPC - I, INC.Location not reported, CT · Withdrawn | Location not reported, CT | Corporation | Sep 2, 1998 | Withdrawn |
| MAGELLAN MIDSTREAM PARTNERS, LIMITED PARTNERSHIPLocation not reported, CT · Cancelled | Location not reported, CT | Partnership | Oct 26, 2000 | Cancelled |
| MAGELLAN GP, INC.Location not reported, CT · Withdrawn | Location not reported, CT | Corporation | May 28, 2002 | Withdrawn |
| MAGELLAN OLP, LIMITED PARTNERSHIPLocation not reported, CT · Cancelled | Location not reported, CT | Partnership | Jun 19, 2002 | Cancelled |
| MAGELLAN MIDSTREAM HOLDINGS, LIMITED PARTNERSHIPLocation not reported, CT · Cancelled | Location not reported, CT | Partnership | Sep 24, 2003 | Cancelled |
| MAGELLAN MIDSTREAM HOLDINGS GP, LLCLocation not reported, CT · Withdrawn | Location not reported, CT | LLC | Nov 14, 2005 | Withdrawn |
| MAGELLAN OPERATING GP, LLCLocation not reported, CT · Withdrawn | Location not reported, CT | LLC | Jan 11, 2006 | Withdrawn |
| WPX ENERGY MARKETING, LLCLocation not reported, CT · Withdrawn | Location not reported, CT | LLC | Aug 2, 2011 | Withdrawn |
| WILLIAMS WPC - I, LLCLocation not reported, CT · Cancelled | Location not reported, CT | LLC | Apr 4, 2013 | Cancelled |
| MAGELLAN NGL, LLCLocation not reported, CT · Withdrawn | Location not reported, CT | LLC | Jul 8, 2020 | Withdrawn |
| MAGELLAN TERMINALS HOLDINGS, LIMITED PARTNERSHIPLocation not reported, CT · Cancelled | Location not reported, CT | Partnership | Jul 8, 2020 | Cancelled |
| SEQUENT ENERGY MANAGEMENT LLCLocation not reported, CT · Active | Location not reported, CT | LLC | Aug 31, 2022 | Active |
| CEJA CORPORATIONLocation not reported, NY · Active | Location not reported, NY | Corporation | Aug 5, 1986 | Active |
| WILLIAMS WPC - I, LLCLocation not reported, OR · Active | Location not reported, OR | LLC | Mar 29, 2013 | Active |
| NORTHWEST PIPELINE LLCLocation not reported, OR · Active | Location not reported, OR | LLC | Aug 13, 2013 | Active |
| WILLIAMS EXPRESS, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | May 15, 1979 | Inactive |
| NORTHWEST EXPLORATION COMPANYLocation not reported, FL · Inactive | Location not reported, FL | Corporation | Jul 29, 1982 | Inactive |
| WILLIAMS ENERGY PARTNERS L.P.Location not reported, FL · Inactive | Location not reported, FL | Partnership | Nov 16, 2000 | Inactive |
| WILLIAMS TERMINAL HOLDINGS, L.P.Location not reported, FL · Inactive | Location not reported, FL | Partnership | Feb 16, 2001 | Inactive |
| WILLIAMS OLP, L.P.Location not reported, FL · Inactive | Location not reported, FL | Partnership | Jun 3, 2002 | Inactive |
| WILLIAMS ENERGY SERVICES INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Nov 16, 2000 | Inactive |
| WILLIAMS ALASKA PETROLEUM, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Aug 28, 2001 | Inactive |