EQT Corporation is a premier, vertically integrated American natural gas company with production and midstream operations focused on the Appalachian Basin. It has operations in Pennsylvania, West Virginia and Ohio. It owns or leases approximately 610,000 net acres in Pennsylvania. Most of the acreage is located in the southwestern region of the state, with the majority located in Greene and Washington Counties. It is developing the Marcellus Shale and Upper Devonian Shale in this area. It also owns or leases 405,000 net acres in West Virginia. Most of the acreage is located in the northwestern region of the state, with the majority located in Doddridge, Marion, Tyler and Wetzel Counties. It owns or leases 65,000 net acres in eastern Ohio and is developing the Utica Shale in Belmont County. It operates Utica wells throughout its Ohio acreage. The Marcellus Shale lies nearly a mile or more beneath the surface throughout much of Ohio, Pennsylvania, New York and West Virginia.