| Type | Filed | Filer | Subject | Shares Owned | Percent Owned | |
|---|---|---|---|---|---|---|
| SC 13G/A | 2020-02-14 | RBC Global Asset Management Inc. | Gastar Exploration Inc. | 0 | 0.0% | EDGAR |
| SC 13G/A | 2019-02-14 | FIR TREE CAPITAL MANAGEMENT LP | Gastar Exploration Inc. | 0 | 0.0% | EDGAR |
| SC 13G | 2019-02-14 | RBC Global Asset Management Inc. | Gastar Exploration Inc. | 148,094 | 6.9% | EDGAR |
| SC 13D/A | 2018-11-16 | ARES MANAGEMENT LLC | Gastar Exploration Inc. | 45,623,125 | 18.6% | EDGAR |
| SC 13D/A | 2018-10-29 | ARES MANAGEMENT LLC | Gastar Exploration Inc. | 45,623,125 | 18.6% | EDGAR |
| SC 13D/A | 2018-07-20 | ARES MANAGEMENT LLC | Gastar Exploration Inc. | 45,623,125 | 18.6% | EDGAR |
| SC 13G/A | 2018-07-10 | BlackRock Inc. | Gastar Exploration Inc. | 3,945,613 | 1.8% | EDGAR |
| SC 13G/A | 2018-02-14 | Wilks Brothers, LLC | Gastar Exploration Inc. | 6,454,011 | 3.0% | EDGAR |
| SC 13G | 2018-02-14 | FIR TREE CAPITAL MANAGEMENT LP | Gastar Exploration Inc. | 21,351,973 | 9.8% | EDGAR |
| SC 13G | 2018-02-01 | BlackRock Inc. | Gastar Exploration Inc. | 12,045,670 | 5.5% | EDGAR |
| SC 13D/A | 2017-05-25 | ARES MANAGEMENT LLC | Gastar Exploration Inc. | 45,623,125 | 19.2% | EDGAR |
| SC 13D/A | 2017-05-04 | ARES MANAGEMENT LLC | Gastar Exploration Inc. | 44,975,995 | 20.4% | EDGAR |
| SC 13D/A | 2017-03-23 | ARES MANAGEMENT LLC | Gastar Exploration Inc. | 10,302,272 | 5.5% | EDGAR |
| SC 13D | 2017-03-08 | ARES MANAGEMENT LLC | Gastar Exploration Inc. | 10,302,272 | 5.5% | EDGAR |
| SC 13D/A | 2016-09-26 | GLOBAL UNDERVALUED SECURITIES MASTER FUND LP | Gastar Exploration Inc. | 6,565,000 | 5.0% | EDGAR |
| SC 13G/A | 2016-08-23 | Wilks Brothers, LLC | Gastar Exploration Inc. | 6,454,011 | 4.9% | EDGAR |
| SC 13D/A | 2016-08-03 | GLOBAL UNDERVALUED SECURITIES MASTER FUND LP | Gastar Exploration Inc. | 8,125,000 | 6.2% | EDGAR |
| SC 13G/A | 2016-06-09 | BlackRock Inc. | Gastar Exploration Inc. | 6,408,277 | 4.9% | EDGAR |
| SC 13G | 2016-05-20 | Wilks Brothers, LLC | Gastar Exploration Inc. | 7,390,511 | 5.6% | EDGAR |
| SC 13D/A | 2016-05-18 | GLOBAL UNDERVALUED SECURITIES MASTER FUND LP | Gastar Exploration Inc. | 9,500,000 | 7.2% | EDGAR |