EQT Corporation is a natural gas producer with operations focused on the Marcellus and Utica Shales of the Appalachian Basin. It has approximately 25.0 trillion cubic feet equivalents (Tcfe) of proved natural gas, natural gas liquids (NGLs), and crude oil reserves across approximately 2.0 million gross acres, including approximately 1.8 million gross acres in the Marcellus play. The Company is focused on the execution of combo-development projects, which refers to the development of several multi-well pads in tandem. It owns or leases approximately 610,000 net acres in Pennsylvania. The Company owns or leases approximately 405,000 net acres in West Virginia. It also owns or leases approximately 65,000 net acres in eastern Ohio. It primarily contracts with MarkWest Energy Partners, L.P. (MarkWest) to process its natural gas and extract from the produced natural gas heavier hydrocarbon streams consisting of ethane, propane, isobutane, normal butane and natural gasoline.