| Date | Time | Source | Headline | Symbol | Company |
| 11/12/2021 | 4:41PM | Edgar (US Regulatory) | Current Report Filing (8-k) | NYSE:NGS | Natural Gas Services Group Inc |
| 11/11/2021 | 7:00AM | GlobeNewswire Inc. | Natural Gas Services Group, Inc. Reports Third Quarter 2021 Financial and Operating Results | NYSE:NGS | Natural Gas Services Group Inc |
| 11/05/2021 | 2:23PM | GlobeNewswire Inc. | Natural Gas Services Group, Inc. Announces Preliminary Third Quarter Reporting Date and Earnings Call | NYSE:NGS | Natural Gas Services Group Inc |
| 10/07/2021 | 6:16PM | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NYSE:NGS | Natural Gas Services Group Inc |
| 10/04/2021 | 7:48AM | Edgar (US Regulatory) | Current Report Filing (8-k) | NYSE:NGS | Natural Gas Services Group Inc |
| 10/04/2021 | 6:00AM | GlobeNewswire Inc. | Natural Gas Services Group, Inc. Announces Reauthorization of Share Repurchase Program | NYSE:NGS | Natural Gas Services Group Inc |
| 09/14/2021 | 5:25PM | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NYSE:NGS | Natural Gas Services Group Inc |
| 08/30/2021 | 4:25PM | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NYSE:NGS | Natural Gas Services Group Inc |
| 08/16/2021 | 6:01AM | Edgar (US Regulatory) | Quarterly Report (10-q) | NYSE:NGS | Natural Gas Services Group Inc |
| 08/11/2021 | 5:19PM | GlobeNewswire Inc. | Natural Gas Services Group, Inc. Reports Second Quarter 2021 Financial and Operating Results | NYSE:NGS | Natural Gas Services Group Inc |
| 08/11/2021 | 5:14PM | Edgar (US Regulatory) | Current Report Filing (8-k) | NYSE:NGS | Natural Gas Services Group Inc |
| 08/02/2021 | 6:00AM | GlobeNewswire Inc. | Natural Gas Services Group, Inc. Announces Preliminary First Quarter Reporting Date and Earnings Call | NYSE:NGS | Natural Gas Services Group Inc |
| 06/22/2021 | 6:01AM | Edgar (US Regulatory) | Current Report Filing (8-k) | NYSE:NGS | Natural Gas Services Group Inc |
| 06/21/2021 | 4:45PM | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NYSE:NGS | Natural Gas Services Group Inc |
| 06/01/2021 | 5:17PM | Edgar (US Regulatory) | Specialized Disclosure Report (sd) | NYSE:NGS | Natural Gas Services Group Inc |
| 05/14/2021 | 2:09PM | Edgar (US Regulatory) | Initial Statement of Beneficial Ownership (3) | NYSE:NGS | Natural Gas Services Group Inc |
| 05/13/2021 | 10:14AM | Edgar (US Regulatory) | Current Report Filing (8-k) | NYSE:NGS | Natural Gas Services Group Inc |
| 05/13/2021 | 6:00AM | GlobeNewswire Inc. | Natural Gas Services Group, Inc. Reports First Quarter 2021 Financial and Operating Results | NYSE:NGS | Natural Gas Services Group Inc |
| 05/12/2021 | 8:00AM | GlobeNewswire Inc. | Natural Gas Services Group, Inc. Announces Closing of $20 Million Credit Facility with Texas Capital Bank | NYSE:NGS | Natural Gas Services Group Inc |
| 05/11/2021 | 9:16AM | Edgar (US Regulatory) | Current Report Filing (8-k) | NYSE:NGS | Natural Gas Services Group Inc |
| 05/11/2021 | 8:00AM | GlobeNewswire Inc. | Natural Gas Services Group, Inc. Announces Appointment of Micah Foster as Chief Financial Officer | NYSE:NGS | Natural Gas Services Group Inc |
| 05/07/2021 | 11:32AM | GlobeNewswire Inc. | Natural Gas Services Group, Inc. Announces Preliminary First Quarter Reporting Date and Earnings Call | NYSE:NGS | Natural Gas Services Group Inc |
| 04/30/2021 | 4:41PM | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NYSE:NGS | Natural Gas Services Group Inc |
| 04/30/2021 | 4:33PM | Edgar (US Regulatory) | Additional Proxy Soliciting Materials (definitive) (defa14a) | NYSE:NGS | Natural Gas Services Group Inc |
| 04/30/2021 | 4:31PM | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NYSE:NGS | Natural Gas Services Group Inc |
| 04/30/2021 | 4:07PM | Edgar (US Regulatory) | Proxy Statement (definitive) (def 14a) | NYSE:NGS | Natural Gas Services Group Inc |
| 04/15/2021 | 4:20PM | Edgar (US Regulatory) | Statement of Beneficial Ownership (sc 13d) | NYSE:NGS | Natural Gas Services Group Inc |
| 04/05/2021 | 5:26PM | Edgar (US Regulatory) | Current Report Filing (8-k) | NYSE:NGS | Natural Gas Services Group Inc |
| 04/05/2021 | 5:20PM | Edgar (US Regulatory) | Initial Statement of Beneficial Ownership (3) | NYSE:NGS | Natural Gas Services Group Inc |
| 04/05/2021 | 4:05PM | GlobeNewswire Inc. | Leading Environmental Specialist Nigel Jenvey to Join Natural Gas Services Group Board, Director Leslie Beyer Receives Key E... | NYSE:NGS | Natural Gas Services Group Inc |