Spire Inc. (SR)
Spire Inc., together with its subsidiaries, engages in the purchase, retail distribution, and sale of natural gas to residential, commercial, industrial, and other end-users of natural gas in the United States.
Sempra (SRE)
Sempra operates as an energy infrastructure company in the United States and internationally.
ONE Gas, Inc. (OGS)
ONE Gas, Inc., together with its subsidiaries, operates as a regulated natural gas distribution company in the United States.