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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1431372	Gastar Exploration Inc.	GST	Crude Petroleum & Natural Gas (1311)	383531640

Insiders

Cik	Name	Reported Address	Director	Officer	Large Shareholder	Other
1081865	B John Kleinheinz	301 Commerce Street, Suite 1900 Fort Worth TX 76102	No	No	No	Yes
1161175	Kleinheinz Capital Partners, Inc.	301 Commerce Street, Suite 1900 Fort Worth TX 76102	No	No	No	Yes
1165595	Global Undervalued Securities Master Fund Lp	301 Commerce Street, Suite 1900 Fort Worth TX 76102	No	No	Yes	Yes

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Acquisiton	2016-01-11	411,770	$1.04	8,749,519	No	4	P	Direct
Common Stock	Acquisiton	2016-01-12	241,450	$0.99	8,990,969	No	4	P	Direct
Common Stock	Acquisiton	2016-01-13	658,550	$1.11	9,649,519	No	4	P	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	P	Direct
No	4	P	Direct
No	4	P	Direct

Footnotes

Represents shares of common stock, par value $0.001 (the "Common Stock"), of Gastar Exploration Inc. (the "Issuer") directly beneficially owned by Global Undervalued Securities Master Fund, L.P. (the "Master Fund").
As general partner of the Master Fund, Kleinheinz Capital Partners, Inc. ("Kleinheinz Inc.") may be deemed to beneficially own the shares of Common Stock directly beneficially owned by the Master Fund. As sole owner of the Master Fund and Kleinheinz Inc., John B. Kleinheinz ("Mr. Kleinheinz") may be deemed to beneficially own the shares of Common Stock directly beneficially owned by the Master Fund. In addition, each reporting person may be deemed to beneficially own more than 10% of the Common Stock under Rule 16a-1(a)(1) under the Securities Exchange Act of 1934, as amended (the "Exchange Act") as a result of being deemed a member of a group under Sections 13(d)(3) and 13(d)(5) of the Exchange Act. (Continued in Footnote 3.)
Kleinheinz Inc. and Mr. Kleinheinz disclaim beneficial ownership of all of the Common Stock described herein, except to the extent of any pecuniary interest therein.