X0306 4 2020-02-27 0 0000874499 GULFPORT ENERGY CORP GPOR 0001727812 Moore Donnie G 3001 QUAIL SPRINGS PARKWAY OKLAHOMA CITY OK 73134 0 1 0 0 COO Common Stock 2020-02-27 4 F 0 19498 0.90 D 345221 D Common Stock 2020-08-04 4 D 0 352981 0.00 D 345221 D On February 27, 2020, the Issuer withheld 19,498 shares of common stock that would have otherwise been issuable to the reporting person to satisfy the reporting person's tax withholding obligations in connection with the vesting and settlement of one-third of the time-based restricted stock granted under the Issuer's equity incentive plan on February 26, 2019. Consequently, as of February 27, 2020, the reporting person owned 345,221 shares of common stock. A Form 4 reporting this transaction was not previously filed. The reported transaction involved the Reporting Person's voluntary forfeiture of 352,981 shares subject to unvested restricted stock units in connection with the issuer adopting a new executive compensation program. /s/ Patrick K. Craine, Attorney-in-Fact 2020-08-06