Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
Porter J Russell
   2. Issuer Name and Ticker or Trading Symbol
Gastar Exploration Inc. [GST] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Chief Executive Officer & Pres
(Last)
(First)
(Middle)
1331 LAMAR STREET, SUITE 650		 3. Date of Earliest Transaction (Month/Day/Year)
01/30/2015
(Street)

HOUSTON, TX 77010		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 01/30/2015   A   286,458 (1) A $ 0 1,863,312 (2) D  
Common Stock 01/30/2015   F   88,094 (3) D $ 2.4 1,775,218 (2) D  
Common Stock 01/30/2015   M   254,656 (4) A $ 0 2,029,874 (2) D  
Common Stock 01/30/2015   F   78,744 (5) D $ 2.4 1,951,130 (2) D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number. SEC 1474 (9-02)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Performance Based Units $ 0 01/30/2015   M     127,328   (6) 01/30/2016 Common Stock 127,328 $ 0 127,328 D  
Performance Based Units $ 0 01/30/2015   J     38,793 (7)   (8) 01/30/2017 Common Stock 38,793 $ 0 77,586 D  
Performance Based Units $ 0 01/30/2015   A   286,458     (8) 01/30/2018 Common Stock 286,458 (8) (9) $ 0 286,458 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Porter J Russell
1331 LAMAR STREET, SUITE 650
HOUSTON, TX 77010		   X     Chief Executive Officer & Pres  

Signatures

 /s/ J. Russell Porter, by Michael A. Gerlich as Attorney in Fact   02/03/2015
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) The reported shares were acquired pursuant to a restricted share grant and will vest in three equal annual installments beginning on January 30, 2016.
(2) Includes 852,540 shares acquired on various dates pursuant to previously reported restricted share grants that will vest subject to previously disclosed vesting schedules.
(3) Shares forfeited to meet tax obligation of restricted share vesting.
(4) Common stock acquired as a result of the 2013 performance based unit award vesting and settling at 200% of the target award based on Gastar's share price appreciation over the performance period.
(5) Shares forfeited to meet tax obligation of performance based unit vesting.
(6) These performance based units ("PBUs") vest ratably over a three year performance period as previously reported.
(7) These PBUs vested and forfeited as a result of the 2014 PBU award and settling at 0% of the target award based on Gastar's share price depreciation over the performance period.
(8) These PBUs vest in their entirety at the end of the three year performance period, with settlement in common stock between 0% and 200% (**subject to limitations discussed in Footnote 8 below) of the target award based on Gastar's share price appreciation over a three year performance period relative to a peer index. Share price appreciation is measured generally as the change in market value of common stock during the performance period. The PBUs have no voting rights but provide for dividend equivalents to be paid upon vesting.
(9) The number of PBUs reported (286,458) represents the target award. As such, the number of shares that may be issued upon vesting ranges from 0 shares to 572,916 shares. **As discussed in Footnote 7 above, at the end of the performance period, the participant may earn up to 200% of the target award, subject to a maximum award limitation of one million (1,000,000) shares that may be issued to any individual in a calendar year under the Gastar Exploration Inc. Long-Term Incentive Plan.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.