X0306 4 2019-12-05 false 0001168054 CIMAREX ENERGY CO XEC 0001646275 Burford G Mark 1700 LINCOLN STREET SUITE 3700 DENVER CO 80203 false true false false SVP & Chief Financial Officer Common Stock 715 I By 401(k) Common Stock 2019-12-05 4 A false 27080 0 A 118651 D Common Stock 2019-12-05 4 A false 27239 0 A 145890 D Represents an award of restricted stock that will vest in its entirety on December 1, 2022 provided that the reporting person remains in the continuous employment of Cimarex through that date. Represents a performance award of restricted stock that is subject to the satisfaction of certain performance criteria through December 1, 2022 provided that the reporting person remains in continuous employment with Cimarex through that date. The amount of securities beneficially owned as reported in column 5 includes 45,316 shares of restricted stock subject to service-based vesting and 74,890 shares subject to service-based vesting and the satisfaction of certain performance criteria. Francis B. Barron, as Attorney-in-Fact 2019-12-09