Gastar Exploration Finds Gas with Donelson #2 Well

Gastar Exploration reports that it has drilled the Donelson #2 well to a total depth of 14,690 feet and, based on gas shows during drilling and electric logs, the well encountered approximately 50 net feet of apparent pay within the Knowles formation. The Donelson #2 well also encountered an apparently productive 10-foot zone within the Pettet formation. Gastar is in the process of installing production casing and tubing with plans to complete the well in the Knowles formation and start initial gas sales by late-January 2006. Following the installation of the production casing and tubing, Nabors Rig 623 will be moved to another Knowles location and completion activities will begin on the Donelson #1 well for a planned completion in the lower Bossier formations encountered in that well.

Gastar's President & CEO, J. Russell Porter, issued the following comments: "The Donelson #2 well was drilled to accelerate development and production of the shallower Knowles formation that was originally encountered in the Donelson #1 well. Our current plans call for another Knowles well to be drilled in the vicinity of the Hilltop structure followed by a multiple-rig Bossier drilling program as a part of our previously announced joint venture with Chesapeake Energy Corporation.