| Explanation of Responses: |
| (1) | Of the shares owned directly, 5,568 are restricted stock units and 44,998 are deferred stock units. |
| (2) | Shares held in Uniform Transfers to Minors Act account established for a grandchild, for which the reporting person serves as custodian. The reporting person disclaims beneficial ownership of these shares, and this report should not be deemed an admission that the reporting person is the beneficial owner of such shares for purposes of Section 16 or for any other purpose. |
| (3) | This stock option, including share amount and exercise price, reflects an exempt anti-dilution adjustment to such award in connection with the 2017 spin-off of the Issuer from CONSOL Energy Inc. |
| (4) | This stock option vested on May 9, 2018. |
| (5) | This stock option vested on May 9, 2019. |
