Equitrans Midstream Corporation Common Stock, also called Equitrans Midstream, is one of the largest natural gas gatherers in the United States. It focuses on gas gathering systems, transmission and storage systems, and water services assets that support natural gas producers across the Basin. Read More The company operates in the following segments: Gathering, Transmission and Water. The Gathering segments includes EQM's high-pressure gathering lines and FERC-regulated low-pressure gathering lines. The Transmission segment includes EQM's FERC-regulated interstate pipelines and storage system. The Water segment consists of EQM's water pipelines, impoundment facilities, pumping stations, take point facilities and measurement facilities. Equitrans Midstream was founded on February 21, 2018 and is headquartered in Pittsburgh, PA.