Atmos Energy Corporation (ATO)
Atmos Energy Corporation, together with its subsidiaries, engages in the regulated natural gas distribution, and pipeline and storage businesses in the United States.
National Fuel Gas Company (NFG)
National Fuel Gas Company operates as a diversified energy company. It operates through four segments: Exploration and Production, Pipeline and Storage, Gathering, and Utility.
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.