Gastar Exploration Usa, Inc.

Gastar Exploration Ltd. (NYSE MKT: GST) is engaged in the exploration, development and production of natural gas, natural gas liquids, condensate and oil in the United States. Our current focus is on the Marcellus Shale play, where we are in the early stages of developing and producing natural gas reserves that also yield significant quantities of condensate and high-value natural gas liquids...