| Alabama Gas Company |
2014 |
Distribution |
| Anadarko Petroleum Corporation |
1996 |
Production |
| Antero Midstream |
2017 |
Gathering, Boosting, and Processing |
| Antero Resources |
2017 |
Production |
| Apache Corporation |
2004 |
Production |
| Baltimore Gas and Electric Company (an Exelon Company) |
1993 |
Distribution |
| Black Hills Energy |
2008 |
Transmission and Storage;
Distribution |
| Boardwalk Pipelines |
2020 |
Transmission and Storage |
| BP |
1995 |
Production;
Gathering, Boosting, and Processing |
| Cabot Oil & Gas Corporation |
2010 |
Production |
| CenterPoint Energy Minnesota Gas |
1997 |
Distribution |
| Central Valley Gas Storage, L.L.C. |
2012 |
Transmission and Storage |
| Chesapeake Energy |
2007 |
Production |
| Chevron Corporation |
1995 |
Production |
| Chevron North America Exploration and Production Company (Gulf of Mexico Business Unit) |
2011 |
Production |
| Citizens Energy Group |
1993 |
Distribution |
| Columbia Gas of Kentucky, Inc. (a NiSource Company) |
1993 |
Distribution |
| Columbia Gas of Maryland, Inc. (a NiSource Company) |
1993 |
Distribution |
| Columbia Gas of Massachusetts, Inc. (a NiSource Company) |
1994 |
Distribution |
| Columbia Gas of Ohio, Inc. (a NiSource Company) |
1993 |
Distribution |
| Columbia Gas of Pennsylvania, Inc. (a NiSource Company) |
1993 |
Distribution |
| Columbia Gas of Virginia, Inc. (a NiSource Company) |
1993 |
Distribution |
| Columbia Gas Transmission (TransCanada) |
1999 |
Transmission and Storage |
| Columbia Gulf Transmission (TransCanada) |
1999 |
Transmission and Storage |
| Connecticut Natural Gas Corporation |
2007 |
Distribution |
| ConocoPhillips Alaska Natural Gas Corporation |
2006 |
Production |
| ConocoPhillips Petroleum Company |
2000 |
Production;
Gathering, Boosting, and Processing |
| Consolidated Edison Company of New York |
1993 |
Distribution |
| Consumers Energy |
1996 |
Transmission and Storage;
Distribution |
| Corning Natural Gas Corporation |
2007 |
Distribution |
| DCP Midstream |
2001 |
Gathering, Boosting, and Processing |
| Delmarva Power |
1996 |
Distribution |
| Dominion Energy Carolina Gas Transmission, LLC |
2016 |
Transmission and Storage |
| Dominion Energy Ohio |
2014 |
Distribution |
| Dominion Energy Questar Pipeline |
2018 |
Transmission |
| Dominion Energy Transmission, Inc. |
2011 |
Transmission and Storage |
| Dominion Energy Utah, Wyoming, Idaho |
2018 |
Distribution |
| Dominion Energy West Virginia |
2015 |
Distribution |
| Dominion Energy Wexpro |
2014 |
Production |
| DTE Energy - MichCon |
1996 |
Transmission and Storage;
Distribution |
| Enable Midstream Partners, LP |
2003 |
Gathering, Boosting, and Processing |
| Enbridge Energy Partners, L.P. |
2004 |
Gathering, Boosting, and Processing |
| Enbridge, Inc. |
2005 |
Transmission and Storage |
| EP Energy |
2003 |
Production |
| Extraction Oil & Gas, Inc. |
2017 |
Production |
| Hess Corporation's Americas Exploration and Production |
1997 |
Production |
| Hunt Oil Company |
2004 |
Production |
| Iroquois Gas Transmission System |
1996 |
Transmission and Storage |
| Kansas Gas Services (a division of ONE Gas, Inc.) |
2008 |
Distribution |
| Kern River Gas Transmission Company |
2018 |
Transmission and Storage |
| Kinder Morgan |
1993 |
Transmission and Storage |
| Marathon Oil Company |
1994 |
Production |
| Missouri Gas Energy |
2015 |
Distribution |
| Murphy Exploration and Production Company |
2000 |
Production |
| National Grid |
1994 |
Distribution |
| New Jersey Natural Gas Company |
2004 |
Distribution |
| New Mexico Gas Company |
2005 |
Transmission and Storage;
Distribution |
| New York State Electric & Gas Corporation |
1993 |
Distribution |
| Nicor Gas |
2004 |
Distribution |
| Noble Energy, Inc. |
2005 |
Production |
| Northern Indiana Public Service Company (a NiSource Company) |
1994 |
Distribution |
| Northern Natural Gas |
1994 |
Transmission and Storage |
| Occidental Oil and Gas Corporation |
2006 |
Production |
| Oklahoma Natural Gas (a division of ONE Gas, Inc.) |
2008 |
Distribution |
| ONEOK Partners |
2000 |
Gathering, Boosting, and Processing;
Transmission and Storage |
| Orange and Rockland Utilities, Inc. |
1994 |
Distribution |
| Pacific Gas & Electric Company |
1994 |
Transmission and Storage;
Distribution |
| PECO (an Exelon Company) |
1995 |
Distribution |
| Piedmont Natural Gas Company, Inc. |
2001 |
Transmission and Storage;
Distribution |
| Pioneer Natural Resources USA, Inc. |
2000 |
Gathering, Boosting, and Processing |
| Public Service Electric and Gas Company (PSE&G) |
1993 |
Distribution |
| Range Resources Corporation |
2019 |
Production |
| Rochester Gas & Electric Corporation |
1994 |
Distribution |
| Seneca Resources Company, LLC |
2015 |
Production |
| Shell Exploration & Production Company |
1995 |
Production |
| South Carolina Electric & Gas Company (a SCANA Company) |
1996 |
Distribution |
| Southern California Gas (a Sempra Energy Utility) |
1993 |
Transmission and Storage;
Distribution |
| Southern Company Gas |
1993 |
Distribution |
| Southern Connecticut Gas Company |
2007 |
Distribution |
| Southwest Gas Corporation |
1997 |
Transmission and Storage;
Distribution |
| Southwestern Energy Company |
2005 |
Production |
| Spectra Energy Transmission |
2000 |
Transmission and Storage |
| Spire |
2007 |
Distribution |
| Targa Resources, Inc. |
2000 |
Gathering, Boosting, and Processing |
| Tecolote Energy |
2017 |
Production |
| Texas Gas Services (a division of ONE Gas, Inc.) |
2008 |
Distribution |
| UGI Utilities, Inc. |
1993 |
Distribution |
| Vermont Gas |
2014 |
Transmission and Storage;
Distribution |
| Washington Gas |
1993 |
Distribution |
| Western Gas Resources (a wholly owned subsidiary of Anadarko Petroleum Corporation) |
2001 |
Gathering, Boosting, and Processing |
| Williams Gas Pipeline |
1993 |
Transmission and Storage |
| Williams Gas Pipeline - Transco and Northwest Pipeline |
1993 |
Transmission and Storage |
| Xcel Energy |
2008 |
Distribution |
