================================================================================ UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 27, 2007 (September 27, 2007) GASTAR EXPLORATION LTD. (Exact Name of Registrant as Specified in Its Charter) ALBERTA, CANADA 001-32714 38-3324634 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.) 1331 LAMAR STREET, SUITE 1080 HOUSTON, TEXAS 77010 (Address of principal executive offices) (713) 739-1800 (Registrant's telephone number, including area code) N/A (Former name or former address, if changed since last report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: |_| Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) |_| Soliciting material pursuant to Rule 14a-12 under the exchange Act (17 CFR 240.14a-12) |_| Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) |_| Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) ================================================================================ SECTION 7 - REGULATION FD ITEM 7.01 REGULATION FD DISCLOSURE On September 27, 2007, Gastar Exploration Ltd. announced the results of an independent reserves study for its PEL 238 Bohena coal seam gas project in New South Wales, Australia. The press release is attached as Exhibit 99.1 and is being furnished solely pursuant to Item 7.01 of this report. SECTION 9 - FINANCIAL STATEMENTS AND EXHIBITS ITEM 9.01 FINANCIAL STATEMENTS AND EXHIBITS (d) Exhibits The following is a list of exhibits furnished as part of this Form 8-K: Exhibit No. Description of Document - ----------- ---------------------------------------------------------------- 99.1 Press release dated September 27, 2007. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. GASTAR EXPLORATION LTD. Date: September 27, 2007 By: /s/ J. RUSSELL PORTER ------------------------------------- J. Russell Porter President and Chief Executive Officer -2- EXHIBIT INDEX Exhibit No. Description of Document - ----------- ---------------------------------------------------------------- 99.1 Press release dated September 27, 2007. -3-