EQT Corporation (EQT) conducts its business through three business segments: EQT Production, EQT Midstream and Distribution. EQT Production is a natural gas producer in the Appalachian Basin with 5.4 trillion cubic feet equivalent of proved reserves across 3.5 million acres, as of December 31, 2011. EQT Midstream provides gathering, transmission and storage services for the Company�s produced gas and to independent third parties in the Appalachian Basin. Distribution, through its regulated natural gas distribution subsidiary, Equitable Gas Company, LLC (Equitable Gas), distributes and sells natural gas to residential, commercial and industrial customers in southwestern Pennsylvania, West Virginia and eastern Kentucky; operates a small gathering system in Pennsylvania, and provides off-system sales activities, which include the purchase and delivery of gas to customers. On February 1, 2011, EQT Midstream sold Langley and the associated NGL pipeline to MarkWest Energy Partners, L.P.