National Fuel Gas Distribution Corporation sells or transports natural gas to more than 740,000 customers through a local distribution system located in western New York and northwestern Pennsylvania. National Fuel Gas Supply Corporation provides interstate natural gas transmission and storage for affiliated and nonaffiliated companies through an integrated gas pipeline system that extends over 2,300 miles from southwestern Pennsylvania to the New York-Canadian border at the Niagara River. More Empire Pipeline, Inc. provides interstate natural gas transmission services for affiliated and nonaffiliated companies through a high-pressure gas pipeline system that extends throughout Western and Central New York, over 245 miles from the New York-Canadian border at the Niagara River to interconnections with the Millennium Pipeline near Corning, NY and Marcellus Shale producers in North-Central Pennsylvania, and east to the Syracuse, NY area. Empire delivers gas to other interstate pipelines, large manufacturing facilities, local gas utilities and electric generation plants that are located along its pipeline. These local gas utilities and electric generators rely on this delivered natural gas to dependably provide energy to over 1 million consumers. National Fuel Gas Midstream Corporation's primary business is to build, own and operate natural gas processing and pipeline gathering facilities in the Appalachian region. Seneca Resources explores for, develops and produces natural gas and oil reserves in California and Appalachia, including the Marcellus Shale.