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Overview of all insider trading transactions in GASTAR EXPLORATION, INC.. Get notifications about new insider transactions in GASTAR EXPLORATION, INC. for free.

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Date	Ticker	Company	Owner	Relationship	Transaction	Code	Cost ($)	Shares	Transaction Value ($)	Total Shares	% Holdings
Feb 24 2016	GST	GASTAR EXPLORATION ...	GLOBAL UNDERVALUED SECURITIES ...	10% Owner	Sell	S	0.99	50,000	49,305	10,099,519	10.1 M to 10.1 M (-0.49 %)
Nov 12 2013	GST	GASTAR EXPLORATION ...	Selser John Michael SR	Director	Grant	A	4.43	5,869	26,000	171,078	165.2 K to 171.1 K (+3.55 %)
Nov 12 2013	GST	GASTAR EXPLORATION ...	PENNER ROBERT DAVID	Director	Grant	A	4.43	2,935	13,002	155,467	152.5 K to 155.5 K (+1.92 %)
Nov 12 2013	GST	GASTAR EXPLORATION ...	Cassels John Hamilton	Director	Grant	A	4.43	2,935	13,002	107,218	110.2 K to 107.2 K (-2.66 %)
Nov 12 2013	GST	GASTAR EXPLORATION ...	Coley Randolph C	Director	Grant	A	4.43	2,935	13,002	118,740	115.8 K to 118.7 K (+2.53 %)
Sep 12 2013	GST	GASTAR EXPLORATION ...	PENNER ROBERT DAVID	Director	Payment of Exercise	F	3.25	1,000	3,250	152,532	153.5 K to 152.5 K (-0.65 %)
Sep 04 2013	GST	GASTAR EXPLORATION ...	Porter J Russell	Chief Executive Off ...	Payment of Exercise	F	3.25	11,282	36,667	1,541,099	1.6 M to 1.5 M (-0.73 %)
Sep 04 2013	GST	GASTAR EXPLORATION ...	Gerlich Michael A	Chief Financial Off ...	Payment of Exercise	F	3.25	6,838	22,224	676,579	683.4 K to 676.6 K (-1.00 %)
Aug 05 2013	GST	GASTAR EXPLORATION ...	McCown Michael	Senior VP & COO	Payment of Exercise	F	3.37	1,692	5,702	300,239	301.9 K to 300.2 K (-0.56 %)
Jul 08 2013	GST	GASTAR EXPLORATION ...	Selser John Michael SR	Director	Buy	P	2.90	10,000	29,000	165,209	155.2 K to 165.2 K (+6.44 %)
Jun 11 2013	GST	GASTAR EXPLORATION ...	CHESAPEAKE ENERGY CORP	10% Owner	Sell	J	0.00	6,781,768	0	0	6.8 M to 0 (-100.00 %)
Apr 03 2013	GST	GASTAR EXPLORATION ...	PENNER ROBERT DAVID	Director	Payment of Exercise	F	1.75	750	1,313	153,532	154.3 K to 153.5 K (-0.49 %)
Mar 26 2013	GST	GASTAR EXPLORATION ...	Porter J Russell	Chief Executive Off ...	Payment of Exercise	F	1.75	8,547	14,957	1,552,381	1.6 M to 1.6 M (-0.55 %)
Mar 26 2013	GST	GASTAR EXPLORATION ...	Gerlich Michael A	Chief Financial Off ...	Payment of Exercise	F	1.75	5,967	10,442	683,417	689.4 K to 683.4 K (-0.87 %)
Mar 26 2013	GST	GASTAR EXPLORATION ...	Coley Randolph C	Director	Payment of Exercise	F	1.75	938	1,642	115,805	116.7 K to 115.8 K (-0.80 %)
Mar 26 2013	GST	GASTAR EXPLORATION ...	Cassels John Hamilton	Director	Payment of Exercise	F	1.32	900	1,188	104,283	105.2 K to 104.3 K (-0.86 %)
Mar 26 2013	GST	GASTAR EXPLORATION ...	PENNER ROBERT DAVID	Director	Payment of Exercise	F	1.36	375	510	154,282	154.7 K to 154.3 K (-0.24 %)
Mar 26 2013	GST	GASTAR EXPLORATION ...	PENNER ROBERT DAVID	Director	Payment of Exercise	F	1.32	900	1,188	154,657	155.6 K to 154.7 K (-0.58 %)
Mar 19 2013	GST	GASTAR EXPLORATION ...	Porter J Russell	Chief Executive Off ...	Payment of Exercise	F	1.36	1,026	1,395	1,560,928	1.6 M to 1.6 M (-0.07 %)
Mar 19 2013	GST	GASTAR EXPLORATION ...	Gerlich Michael A	Chief Financial Off ...	Payment of Exercise	F	1.36	662	900	689,384	690 K to 689.4 K (-0.10 %)
Mar 19 2013	GST	GASTAR EXPLORATION ...	Porter J Russell	Chief Executive Off ...	Payment of Exercise	F	1.32	11,478	15,151	1,561,954	1.6 M to 1.6 M (-0.73 %)
Mar 19 2013	GST	GASTAR EXPLORATION ...	Gerlich Michael A	Chief Financial Off ...	Payment of Exercise	F	1.32	5,947	7,850	690,046	696 K to 690 K (-0.85 %)
Mar 19 2013	GST	GASTAR EXPLORATION ...	Coley Randolph C	Director	Payment of Exercise	F	1.32	1,124	1,484	116,743	117.9 K to 116.7 K (-0.95 %)
Feb 20 2013	GST	GASTAR EXPLORATION ...	Porter J Russell	Chief Executive Off ...	Option Exercise	A	0.00	381,983	0	381,983
Feb 20 2013	GST	GASTAR EXPLORATION ...	Gerlich Michael A	Chief Financial Off ...	Option Exercise	A	0.00	240,302	0	240,302
Feb 12 2013	GST	GASTAR EXPLORATION ...	PENNER ROBERT DAVID	Director	Grant	A	1.16	64,655	75,000	155,557	90.9 K to 155.6 K (+71.13 %)
Feb 12 2013	GST	GASTAR EXPLORATION ...	PENNER ROBERT DAVID	Director	Payment of Exercise	F	1.16	1,690	1,960	90,902	92.6 K to 90.9 K (-1.83 %)
Feb 12 2013	GST	GASTAR EXPLORATION ...	Cassels John Hamilton	Director	Grant	A	1.16	64,655	75,000	105,183	40.5 K to 105.2 K (+159.53 %)
Feb 12 2013	GST	GASTAR EXPLORATION ...	Cassels John Hamilton	Director	Payment of Exercise	F	1.16	1,690	1,960	40,528	42.2 K to 40.5 K (-4.00 %)
Jan 31 2013	GST	GASTAR EXPLORATION ...	Coley Randolph C	Director	Grant	A	1.16	64,655	75,000	117,867	53.2 K to 117.9 K (+121.50 %)
Jan 31 2013	GST	GASTAR EXPLORATION ...	Coley Randolph C	Director	Payment of Exercise	F	1.16	2,112	2,450	53,212	55.3 K to 53.2 K (-3.82 %)
Jan 31 2013	GST	GASTAR EXPLORATION ...	Selser John Michael SR	Director	Grant	A	1.16	64,655	75,000	155,209	90.6 K to 155.2 K (+71.40 %)
Jan 31 2013	GST	GASTAR EXPLORATION ...	Selser John Michael SR	Director	Payment of Exercise	F	1.16	2,112	2,450	90,554	92.7 K to 90.6 K (-2.28 %)
Jan 31 2013	GST	GASTAR EXPLORATION ...	Porter J Russell	Chief Executive Off ...	Grant	A	1.16	484,914	562,500	1,573,432	1.1 M to 1.6 M (+44.55 %)
Jan 31 2013	GST	GASTAR EXPLORATION ...	Porter J Russell	Chief Executive Off ...	Payment of Exercise	F	1.16	26,172	30,360	1,088,518	1.1 M to 1.1 M (-2.35 %)
Jan 31 2013	GST	GASTAR EXPLORATION ...	Gerlich Michael A	Chief Financial Off ...	Grant	A	1.16	242,457	281,250	695,993	453.5 K to 696 K (+53.46 %)
Jan 31 2013	GST	GASTAR EXPLORATION ...	Gerlich Michael A	Chief Financial Off ...	Payment of Exercise	F	1.16	13,789	15,995	453,536	467.3 K to 453.5 K (-2.95 %)
Sep 10 2012	GST	GASTAR EXPLORATION ...	PENNER ROBERT DAVID	Director	Payment of Exercise	F	1.60	1,000	1,600	92,592	93.6 K to 92.6 K (-1.07 %)
Sep 05 2012	GST	GASTAR EXPLORATION ...	Porter J Russell	Chief Executive Off ...	Payment of Exercise	F	1.60	10,911	17,458	1,114,690	1.1 M to 1.1 M (-0.97 %)
Sep 05 2012	GST	GASTAR EXPLORATION ...	Selser John Michael SR	Director	Payment of Exercise	F	1.60	1,250	2,000	92,666	93.9 K to 92.7 K (-1.33 %)
Sep 05 2012	GST	GASTAR EXPLORATION ...	Gerlich Michael A	Chief Financial Off ...	Payment of Exercise	F	1.60	6,613	10,581	467,325	473.9 K to 467.3 K (-1.40 %)
Jun 07 2012	GST	GASTAR EXPLORATION ...	PRICE FLOYD R	Director	Payment of Exercise	F	1.81	938	1,698	55,324	56.3 K to 55.3 K (-1.67 %)
May 24 2012	GST	GASTAR EXPLORATION ...	Porter J Russell	Chief Executive Off ...	Buy	P	1.92	50,000	96,000	1,125,601	1.1 M to 1.1 M (+4.65 %)
May 21 2012	GST	GASTAR EXPLORATION ...	PENNER ROBERT DAVID	Director	Payment of Exercise	F	2.15	1,333	2,866	93,592	94.9 K to 93.6 K (-1.40 %)
May 16 2012	GST	GASTAR EXPLORATION ...	Selser John Michael SR	Director	Payment of Exercise	F	2.15	1,667	3,584	93,916	95.6 K to 93.9 K (-1.74 %)
May 16 2012	GST	GASTAR EXPLORATION ...	Porter J Russell	Chief Executive Off ...	Payment of Exercise	F	2.15	3,968	8,531	1,075,601	1.1 M to 1.1 M (-0.37 %)
May 16 2012	GST	GASTAR EXPLORATION ...	Gerlich Michael A	Chief Financial Off ...	Payment of Exercise	F	2.15	2,645	5,687	473,938	476.6 K to 473.9 K (-0.55 %)
Apr 03 2012	GST	GASTAR EXPLORATION ...	PENNER ROBERT DAVID	Director	Payment of Exercise	F	3.07	750	2,303	94,925	95.7 K to 94.9 K (-0.78 %)
Apr 03 2012	GST	GASTAR EXPLORATION ...	PENNER ROBERT DAVID	Director	Payment of Exercise	F	2.95	375	1,106	95,675	96.1 K to 95.7 K (-0.39 %)
Apr 03 2012	GST	GASTAR EXPLORATION ...	PENNER ROBERT DAVID	Director	Payment of Exercise	F	2.71	899	2,436	96,050	96.9 K to 96.1 K (-0.93 %)
Apr 03 2012	GST	GASTAR EXPLORATION ...	Cassels John Hamilton	Director	Payment of Exercise	F	2.71	1,106	2,997	42,218	43.3 K to 42.2 K (-2.55 %)
Mar 26 2012	GST	GASTAR EXPLORATION ...	Gerlich Michael A	Chief Financial Off ...	Payment of Exercise	F	3.07	5,786	17,763	476,583	482.4 K to 476.6 K (-1.20 %)
Mar 26 2012	GST	GASTAR EXPLORATION ...	Selser John Michael SR	Director	Payment of Exercise	F	3.07	938	2,880	95,583	96.5 K to 95.6 K (-0.97 %)
Mar 26 2012	GST	GASTAR EXPLORATION ...	Porter J Russell	Chief Executive Off ...	Payment of Exercise	F	3.07	8,266	25,377	1,079,569	1.1 M to 1.1 M (-0.76 %)
Mar 26 2012	GST	GASTAR EXPLORATION ...	Coley Randolph C	Director	Payment of Exercise	F	3.07	938	2,880	55,324	56.3 K to 55.3 K (-1.67 %)
Mar 20 2012	GST	GASTAR EXPLORATION ...	Selser John Michael SR	Director	Payment of Exercise	F	2.95	469	1,384	96,521	97 K to 96.5 K (-0.48 %)
Mar 20 2012	GST	GASTAR EXPLORATION ...	Porter J Russell	Chief Executive Off ...	Payment of Exercise	F	2.95	992	2,926	1,087,835	1.1 M to 1.1 M (-0.09 %)
Mar 20 2012	GST	GASTAR EXPLORATION ...	Gerlich Michael A	Chief Financial Off ...	Payment of Exercise	F	2.95	662	1,953	482,369	483 K to 482.4 K (-0.14 %)
Mar 19 2012	GST	GASTAR EXPLORATION ...	Porter J Russell	Chief Executive Off ...	Payment of Exercise	F	2.71	11,101	30,084	1,088,827	1.1 M to 1.1 M (-1.01 %)
Mar 19 2012	GST	GASTAR EXPLORATION ...	Gerlich Michael A	Chief Financial Off ...	Payment of Exercise	F	2.71	5,947	16,116	483,031	489 K to 483 K (-1.22 %)
Mar 19 2012	GST	GASTAR EXPLORATION ...	Selser John Michael SR	Director	Payment of Exercise	F	2.71	1,124	3,046	96,990	98.1 K to 97 K (-1.15 %)
Mar 19 2012	GST	GASTAR EXPLORATION ...	PRICE FLOYD R	Director	Payment of Exercise	F	2.71	1,124	3,046	56,262	57.4 K to 56.3 K (-1.96 %)
Mar 19 2012	GST	GASTAR EXPLORATION ...	Coley Randolph C	Director	Payment of Exercise	F	2.71	1,124	3,046	56,262	57.4 K to 56.3 K (-1.96 %)
Feb 03 2012	GST	GASTAR EXPLORATION ...	Gerlich Michael A	Chief Financial Off ...	Grant	A	2.96	126,689	374,999	488,978	362.3 K to 489 K (+34.97 %)
Feb 03 2012	GST	GASTAR EXPLORATION ...	PRICE FLOYD R	Director	Grant	A	2.96	25,338	75,000	57,386	32 K to 57.4 K (+79.06 %)
Feb 03 2012	GST	GASTAR EXPLORATION ...	Porter J Russell	Chief Executive Off ...	Grant	A	2.96	253,378	749,999	1,099,928	846.6 K to 1.1 M (+29.93 %)
Feb 03 2012	GST	GASTAR EXPLORATION ...	PENNER ROBERT DAVID	Director	Grant	A	2.96	25,338	75,000	96,949	71.6 K to 96.9 K (+35.38 %)
Feb 03 2012	GST	GASTAR EXPLORATION ...	Selser John Michael SR	Director	Grant	A	2.96	25,338	75,000	98,114	72.8 K to 98.1 K (+34.82 %)
Feb 03 2012	GST	GASTAR EXPLORATION ...	Coley Randolph C	Director	Grant	A	2.96	25,338	75,000	57,386	32 K to 57.4 K (+79.06 %)
Feb 03 2012	GST	GASTAR EXPLORATION ...	Cassels John Hamilton	Director	Grant	A	2.96	25,338	75,000	43,324	18 K to 43.3 K (+140.88 %)
Sep 14 2011	GST	GASTAR EXPLORATION ...	PENNER ROBERT DAVID	Director	Payment of Exercise	F	4.06	1,000	4,060	71,611	72.6 K to 71.6 K (-1.38 %)
Sep 07 2011	GST	GASTAR EXPLORATION ...	Gerlich Michael A	Chief Financial Off ...	Payment of Exercise	F	4.06	6,613	26,849	362,289	368.9 K to 362.3 K (-1.79 %)
Sep 07 2011	GST	GASTAR EXPLORATION ...	Selser John Michael SR	Director	Payment of Exercise	F	4.06	1,250	5,075	72,776	74 K to 72.8 K (-1.69 %)
Sep 07 2011	GST	GASTAR EXPLORATION ...	Porter J Russell	Chief Executive Off ...	Payment of Exercise	F	4.06	10,911	44,299	846,550	857.5 K to 846.6 K (-1.27 %)
Jul 11 2011	GST	GASTAR EXPLORATION ...	Porter J Russell	Chief Executive Off ...	Payment of Exercise	F	3.50	3,968	13,888	857,461	861.4 K to 857.5 K (-0.46 %)
Jul 11 2011	GST	GASTAR EXPLORATION ...	Gerlich Michael A	Chief Financial Off ...	Payment of Exercise	F	3.50	2,424	8,484	368,902	371.3 K to 368.9 K (-0.65 %)
Jun 09 2011	GST	GASTAR EXPLORATION ...	PRICE FLOYD R	Director	Payment of Exercise	F	3.38	938	3,170	32,048	33 K to 32 K (-2.84 %)
May 23 2011	GST	GASTAR EXPLORATION ...	Gerlich Michael A	Chief Financial Off ...	Payment of Exercise	F	3.59	2,645	9,496	371,326	374 K to 371.3 K (-0.71 %)
May 23 2011	GST	GASTAR EXPLORATION ...	Porter J Russell	Chief Executive Off ...	Payment of Exercise	F	3.59	3,968	14,245	861,429	865.4 K to 861.4 K (-0.46 %)
May 23 2011	GST	GASTAR EXPLORATION ...	PENNER ROBERT DAVID	Director	Payment of Exercise	F	3.59	1,333	4,785	72,611	73.9 K to 72.6 K (-1.80 %)
May 23 2011	GST	GASTAR EXPLORATION ...	Selser John Michael SR	Director	Payment of Exercise	F	3.59	1,667	5,985	74,026	75.7 K to 74 K (-2.20 %)
Mar 30 2011	GST	GASTAR EXPLORATION ...	Coley Randolph C	Director	Payment of Exercise	F	4.66	938	4,371	32,048	33 K to 32 K (-2.84 %)
Mar 30 2011	GST	GASTAR EXPLORATION ...	Gerlich Michael A	Chief Financial Off ...	Payment of Exercise	F	4.66	5,786	26,963	373,971	379.8 K to 374 K (-1.52 %)
Mar 30 2011	GST	GASTAR EXPLORATION ...	Porter J Russell	Chief Executive Off ...	Payment of Exercise	F	4.66	8,266	38,520	865,397	873.7 K to 865.4 K (-0.95 %)
Mar 23 2011	GST	GASTAR EXPLORATION ...	Selser John Michael SR	Director	Payment of Exercise	F	4.17	469	1,956	76,631	77.1 K to 76.6 K (-0.61 %)
Mar 23 2011	GST	GASTAR EXPLORATION ...	Porter J Russell	Chief Executive Off ...	Payment of Exercise	F	4.17	992	4,137	873,663	874.7 K to 873.7 K (-0.11 %)
Mar 30 2011	GST	GASTAR EXPLORATION ...	PENNER ROBERT DAVID	Director	Payment of Exercise	F	4.66	750	3,495	73,944	74.7 K to 73.9 K (-1.00 %)
Mar 30 2011	GST	GASTAR EXPLORATION ...	Selser John Michael SR	Director	Payment of Exercise	F	4.66	938	4,371	75,693	76.6 K to 75.7 K (-1.22 %)
Mar 23 2011	GST	GASTAR EXPLORATION ...	Gerlich Michael A	Chief Financial Off ...	Payment of Exercise	F	4.17	661	2,756	379,757	380.4 K to 379.8 K (-0.17 %)
Mar 23 2011	GST	GASTAR EXPLORATION ...	PENNER ROBERT DAVID	Director	Payment of Exercise	F	4.17	375	1,564	74,694	75.1 K to 74.7 K (-0.50 %)
Mar 15 2011	GST	GASTAR EXPLORATION ...	Gerlich Michael A	Chief Financial Off ...	Grant	A	4.17	89,928	375,000	380,418	290.5 K to 380.4 K (+30.96 %)
Mar 15 2011	GST	GASTAR EXPLORATION ...	Porter J Russell	Chief Executive Off ...	Grant	A	4.17	167,866	700,001	874,655	706.8 K to 874.7 K (+23.75 %)
Mar 15 2011	GST	GASTAR EXPLORATION ...	PRICE FLOYD R	Director	Grant	A	4.17	17,986	75,002	32,986	15 K to 33 K (+119.91 %)
Mar 15 2011	GST	GASTAR EXPLORATION ...	PENNER ROBERT DAVID	Director	Grant	A	4.17	17,986	75,002	75,069	57.1 K to 75.1 K (+31.51 %)
Mar 15 2011	GST	GASTAR EXPLORATION ...	Selser John Michael SR	Director	Grant	A	4.17	17,986	75,002	77,100	59.1 K to 77.1 K (+30.43 %)
Jan 04 2011	GST	GASTAR EXPLORATION ...	Selser John Michael SR	Director	Gift	G	4.19	3,300	13,827	59,114	55.8 K to 59.1 K (+5.91 %)
Jan 04 2011	GST	GASTAR EXPLORATION ...	Selser John Michael SR	Director	Gift	G	4.19	3,300	13,827	55,814	52.5 K to 55.8 K (+6.28 %)
Jan 04 2011	GST	GASTAR EXPLORATION ...	Selser John Michael SR	Director	Gift	G	4.19	6,600	27,654	52,514	59.1 K to 52.5 K (-11.16 %)
Mar 15 2011	GST	GASTAR EXPLORATION ...	Coley Randolph C	Director	Grant	A	4.17	17,986	75,002	32,986	15 K to 33 K (+119.91 %)
Sep 30 2010	GST	GASTAR EXPLORATION ...	PENNER ROBERT DAVID	Director	Payment of Exercise	F	4.29	2,667	11,441	57,083	59.8 K to 57.1 K (-4.46 %)
Sep 21 2010	GST	GASTAR EXPLORATION ...	Porter J Russell	Chief Executive Off ...	Payment of Exercise	F	3.25	10,911	35,461	706,789	717.7 K to 706.8 K (-1.52 %)
Sep 21 2010	GST	GASTAR EXPLORATION ...	Selser John Michael SR	Director	Payment of Exercise	F	3.25	1,250	4,063	59,114	60.4 K to 59.1 K (-2.07 %)
Sep 21 2010	GST	GASTAR EXPLORATION ...	Gerlich Michael A	Chief Financial Off ...	Payment of Exercise	F	3.25	6,613	21,492	290,490	297.1 K to 290.5 K (-2.23 %)
Sep 21 2010	GST	GASTAR EXPLORATION ...	PENNER ROBERT DAVID	Director	Payment of Exercise	F	3.25	2,000	6,500	59,750	61.8 K to 59.8 K (-3.24 %)
Sep 21 2010	GST	GASTAR EXPLORATION ...	Rooney John R.	Director	Payment of Exercise	F	3.25	2,235	7,264	41,652	43.9 K to 41.7 K (-5.09 %)
Aug 09 2010	GST	GASTAR EXPLORATION ...	Rooney John R.	Director	Payment of Exercise	F	3.73	1,113	4,151	43,887	45 K to 43.9 K (-2.47 %)
Jul 21 2010	GST	GASTAR EXPLORATION ...	Gerlich Michael A	Chief Financial Off ...	Payment of Exercise	F	3.66	2,425	8,876	297,103	299.5 K to 297.1 K (-0.81 %)
Jul 21 2010	GST	GASTAR EXPLORATION ...	Porter J Russell	Chief Executive Off ...	Payment of Exercise	F	3.66	3,968	14,523	717,700	721.7 K to 717.7 K (-0.55 %)
Jun 07 2010	GST	GASTAR EXPLORATION ...	PRICE FLOYD R	Director	Option Exercise	A	4.07	40,000	162,800	40,000
Jun 07 2010	GST	GASTAR EXPLORATION ...	PRICE FLOYD R	Director	Grant	A	4.07	15,000	61,050	15,000	0 to 15 K
May 20 2010	GST	GASTAR EXPLORATION ...	Selser John Michael SR	Director	Payment of Exercise	F	4.29	1,667	7,151	60,364	62 K to 60.4 K (-2.69 %)
May 20 2010	GST	GASTAR EXPLORATION ...	Porter J Russell	Chief Executive Off ...	Payment of Exercise	F	4.29	3,968	17,023	721,668	725.6 K to 721.7 K (-0.55 %)
May 20 2010	GST	GASTAR EXPLORATION ...	Gerlich Michael A	Chief Financial Off ...	Payment of Exercise	F	4.29	2,645	11,347	299,528	302.2 K to 299.5 K (-0.88 %)
Mar 31 2010	GST	GASTAR EXPLORATION ...	Gerlich Michael A	Chief Financial Off ...	Payment of Exercise	F	4.96	816	4,047	302,173	303 K to 302.2 K (-0.27 %)
Mar 31 2010	GST	GASTAR EXPLORATION ...	Gerlich Michael A	Chief Financial Off ...	Grant	A	4.98	87,500	435,750	302,989	215.5 K to 303 K (+40.61 %)
Mar 31 2010	GST	GASTAR EXPLORATION ...	Porter J Russell	Chief Executive Off ...	Payment of Exercise	F	4.96	992	4,920	725,636	726.6 K to 725.6 K (-0.14 %)
Mar 31 2010	GST	GASTAR EXPLORATION ...	Porter J Russell	Chief Executive Off ...	Grant	A	4.98	125,000	622,500	726,628	851.6 K to 726.6 K (-14.68 %)
Mar 31 2010	GST	GASTAR EXPLORATION ...	Coley Randolph C	Director	Grant	A	4.98	15,000	74,700	15,000	0 to 15 K
Mar 31 2010	GST	GASTAR EXPLORATION ...	PENNER ROBERT DAVID	Director	Payment of Exercise	F	4.96	750	3,720	61,750	62.5 K to 61.8 K (-1.20 %)
Mar 31 2010	GST	GASTAR EXPLORATION ...	PENNER ROBERT DAVID	Director	Grant	A	4.98	15,000	74,700	62,500	47.5 K to 62.5 K (+31.58 %)
Mar 31 2010	GST	GASTAR EXPLORATION ...	Selser John Michael SR	Director	Payment of Exercise	F	4.96	469	2,326	62,031	62.5 K to 62 K (-0.75 %)
Mar 31 2010	GST	GASTAR EXPLORATION ...	Selser John Michael SR	Director	Grant	A	4.98	15,000	74,700	62,500	47.5 K to 62.5 K (+31.58 %)
Mar 31 2010	GST	GASTAR EXPLORATION ...	Rooney John R.	Director	Grant	A	4.98	15,000	74,700	45,000	30 K to 45 K (+50.00 %)
Jan 19 2010	GST	GASTAR EXPLORATION ...	Coley Randolph C	Director	Option Exercise	A	4.27	40,000	170,800	40,000
Sep 09 2009	GST	GASTAR EXPLORATION ...	Gerlich Michael A	Chief Financial Off ...	Grant	A	3.72	100,000	372,000	215,489	115.5 K to 215.5 K (+86.59 %)
Sep 09 2009	GST	GASTAR EXPLORATION ...	Porter J Russell	Chief Executive Off ...	Grant	A	3.72	165,000	613,800	601,628	766.6 K to 601.6 K (-21.52 %)
Sep 09 2009	GST	GASTAR EXPLORATION ...	PENNER ROBERT DAVID	Director	Grant	A	3.72	20,000	74,400	47,500	27.5 K to 47.5 K (+72.73 %)
Sep 09 2009	GST	GASTAR EXPLORATION ...	Selser John Michael SR	Director	Grant	A	3.72	20,000	74,400	47,500	67.5 K to 47.5 K (-29.63 %)
Sep 09 2009	GST	GASTAR EXPLORATION ...	Rooney John R.	Director	Grant	A	3.72	20,000	74,400	30,000	10 K to 30 K (+200.00 %)
Jul 15 2009	GST	GASTAR EXPLORATION ...	Porter J Russell	Chief Executive Off ...	Payment of Exercise	F	0.58	19,838	11,506	2,183,138	2.2 M to 2.2 M (-0.90 %)
Jul 15 2009	GST	GASTAR EXPLORATION ...	Gerlich Michael A	Chief Financial Off ...	Payment of Exercise	F	0.58	12,123	7,031	577,441	589.6 K to 577.4 K (-2.06 %)
Jul 10 2009	GST	GASTAR EXPLORATION ...	Rooney John R.	Director	Option Exercise	A	0.55	200,000	110,000	200,000
Jul 10 2009	GST	GASTAR EXPLORATION ...	Rooney John R.	Director	Grant	A	0.55	50,000	27,500	50,000	0 to 50 K
Mar 23 2009	GST	GASTAR EXPLORATION ...	Porter J Russell	Chief Executive Off ...	Option Exercise	A	0.52	150,000	78,000	2,300,000
Mar 23 2009	GST	GASTAR EXPLORATION ...	Porter J Russell	Chief Executive Off ...	Grant	A	0.00	75,000	0	2,202,976	2.1 M to 2.2 M (+3.52 %)
Mar 23 2009	GST	GASTAR EXPLORATION ...	Porter J Russell	Chief Executive Off ...	Payment of Exercise	F	0.52	175,486	91,253	2,127,976	2.3 M to 2.1 M (-7.62 %)
Mar 23 2009	GST	GASTAR EXPLORATION ...	Porter J Russell	Chief Executive Off ...	Grant	A	0.00	663,462	0	2,303,462	1.6 M to 2.3 M (+40.46 %)
Mar 23 2009	GST	GASTAR EXPLORATION ...	Gerlich Michael A	Chief Financial Off ...	Option Exercise	A	0.52	100,000	52,000	1,000,000
Mar 23 2009	GST	GASTAR EXPLORATION ...	Gerlich Michael A	Chief Financial Off ...	Grant	A	0.00	50,000	0	589,564	539.6 K to 589.6 K (+9.27 %)
Mar 23 2009	GST	GASTAR EXPLORATION ...	Gerlich Michael A	Chief Financial Off ...	Payment of Exercise	F	0.52	79,859	41,527	539,564	619.4 K to 539.6 K (-12.89 %)
Mar 23 2009	GST	GASTAR EXPLORATION ...	Gerlich Michael A	Chief Financial Off ...	Grant	A	0.00	301,923	0	619,423	317.5 K to 619.4 K (+95.09 %)
Mar 23 2009	GST	GASTAR EXPLORATION ...	Badwi Abdel F	Director	Option Exercise	A	0.52	75,000	39,000	1,025,000
Mar 23 2009	GST	GASTAR EXPLORATION ...	Badwi Abdel F	Director	Grant	A	0.00	37,500	0	137,500	100 K to 137.5 K (+37.50 %)
Mar 23 2009	GST	GASTAR EXPLORATION ...	PENNER ROBERT DAVID	Director	Option Exercise	A	0.52	75,000	39,000	275,000
Mar 23 2009	GST	GASTAR EXPLORATION ...	PENNER ROBERT DAVID	Director	Grant	A	0.00	37,500	0	137,500	100 K to 137.5 K (+37.50 %)
Mar 23 2009	GST	GASTAR EXPLORATION ...	Selser John Michael SR	Director	Option Exercise	A	0.52	75,000	39,000	375,000
Mar 23 2009	GST	GASTAR EXPLORATION ...	Selser John Michael SR	Director	Grant	A	0.00	37,500	0	137,500	100 K to 137.5 K (+37.50 %)
Oct 03 2008	GST	GASTAR EXPLORATION ...	Gerlich Michael A	Chief Financial Off ...	Buy	P	1.08	5,000	5,400	317,500	312.5 K to 317.5 K (+1.60 %)
Sep 22 2008	GST	GASTAR EXPLORATION ...	Porter J Russell	Chief Executive Off ...	Grant	A	1.51	50,000	75,500	1,190,000	1.1 M to 1.2 M (+4.39 %)
May 16 2008	GST	GASTAR EXPLORATION ...	Porter J Russell	Chief Executive Off ...	Grant	A	1.91	225,000	429,750	2,730,000	3 M to 2.7 M (-7.61 %)

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