ONEOK, Inc., together with its subsidiaries, engages in gathering, processing, storage, and transportation of natural gas in the United States. It operates through Natural Gas Gathering and Processing, Natural Gas Liquids, and Natural Gas Pipelines segments. The company owns natural gas gathering pipelines and processing plants in the Mid-Continent and Rocky Mountain regions.
Atmos Energy Corporation, together with its subsidiaries, engages in the regulated natural gas distribution, and pipeline and storage businesses in the United States. It operates through two segments, Distribution, and Pipeline and Storage.
UGI Corporation distributes, stores, transports, and markets energy products and related services in the United States and internationally. The company operates through four segments: AmeriGas Propane, UGI International, Midstream & Marketing, and UGI Utilities. It distributes propane to approximately 1.4 million residential, commercial/industrial, motor fuel, agricultural, and wholesale customers through 1,600 propane distribution location.