| Date Filed | Type | Description |
| 07/27/2023 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 05/09/2023 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 02/07/2023 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 10/26/2022 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 08/08/2022 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 05/09/2022 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 01/31/2022 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 11/12/2021 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 08/04/2021 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 05/17/2021 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 02/16/2021 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 11/13/2020 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 08/14/2020 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 05/07/2020 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 01/31/2020 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 11/07/2019 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 09/19/2019 |
SC 13G/A
| Oslo Asset Management AS reports a 498% stake in Natural Gas Services Group, Inc |
| 07/31/2019 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 04/30/2019 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 03/18/2019 |
SC 13G/A
| Oslo Asset Management AS reports a 740% stake in Natural Gas Services Group, Inc |
| 02/06/2019 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 11/06/2018 |
SC 13G
| Oslo Asset Management AS reports a 513% stake in Natural Gas Services Group, Inc |
| 10/30/2018 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 08/10/2018 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 04/26/2018 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 01/29/2018 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 10/26/2017 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 07/25/2017 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 04/24/2017 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings |
| 01/24/2017 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings |
| 12/21/2016 |
SC 13G/A
| Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend] |
| 10/27/2016 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings |
| 07/28/2016 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings |
| 04/29/2016 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings |
|