| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Wexford Capital LP | 4.9% | 4,469,538 | 0 | 4,469,538 | /s/ Mark E. Ahern | By: Wexford GP LLC, its General Partner, By: Mark E. Ahern, Vice President and Assistant Secretary | |
| Wexford GP LLC | 4.9% | 4,469,538 | 0 | 4,469,538 | /s/ Mark E. Ahern | Mark E. Ahern, Vice President and Assistant Secretary | |
| Charles E. Davidson | 4.9% | 4,469,538 | 0 | 4,469,538 | /s/ Charles E. Davidson | Charles E. Davidson | |
| Joseph M. Jacobs | 4.9% | 4,469,538 | 0 | 4,469,538 | /s/ Joseph M. Jacobs | Joseph M. Jacobs |