Exhibit 99.1
JOINT FILING AGREEMENT
In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13D dated November 28, 2022 (including amendments thereto) with respect to the Common Stock of Natural Gas Services Group, Inc. This Joint Filing Agreement shall be filed as an Exhibit to such Statement.
| Dated: | January 26, 2026 |
| Hoak Public Equities, L.P. | Hoak Fund Management, L.P. | |||||
| By: | Hoak Fund Management, L.P., its general partner | By: | Hoak & Co., its general partner | |||
| By: | Hoak & Co., its general partner | By: | /s/ J. Hale Hoak | |||
| J. Hale Hoak | ||||||
| By | /s/ J. Hale Hoak | President | ||||
| J. Hale Hoak | ||||||
| President | ||||||
| Hoak & Co. | James M. Hoak | |||||
| By | /s/ J. Hale Hoak | By: | /s/ James M. Hoak | |||
| J. Hale Hoak | James M. Hoak | |||||
| President | ||||||
| J. Hale Hoak | ||||||
| By | /s/ J. Hale Hoak | |||||
| J. Hale Hoak | ||||||