UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date:
June 8, 2011 3:00 P.M.
Form:
S-3
CIK:
0001431372
Company Name:
Gastar Exploration USA, Inc.
File Number:
333-174552
CIK:
0001170154
Company Name:
GASTAR EXPLORATION LTD
File Number:
333-174552-01