Description Did someone order delivery? EQT Midstream Partners (formerly Equitrans), an indirect subsidiary of integrated natural gas behemoth EQT provides natural gas gathering, storage and transmission services through pipelines that connect to delivery points in Kentucky, Pennsylvania, and West Virginia. EQT formed EQT Midstream Partners to forge a new relationship between pipelines and their markets, where customers were active, discriminating buyers of energy services. The unit is expanding it operations in the lucrative Marcellus Shale play in West Virginia and Pennsylvania, to better serve growing natural gas demand in the Northeast. In 2012 EQT filed to take EQT Midstream Partners public.