X0306 4 2018-12-06 false 0001168054 CIMAREX ENERGY CO XEC 0001558615 Lambuth John 1700 LINCOLN STREET SUITE 3700 DENVER CO 80203 false true false false SVP-Exploration Common Stock 2018-12-06 4 A false 19894 0 A 132962 D Common Stock 2018-12-06 4 A false 16619 0 A 149581 D Common Stock 2018-12-09 4 F false 10622 75.22 D 138959 D Common Stock 2018-12-09 4 J false 10851 75.22 D 128108 D Represents an award of restricted stock that will vest in its entirety on December 1, 2021 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, 2021 provided that the reporting person remains in continuous employment with Cimarex through that date. Relates to performance award with a vesting date of 12/9/2018. Represents shares vested but withheld for taxes as permitted by the award agreement. Represents shares forfeited pursuant to performance conditions under a Performance Award Agreement. The amount of securities beneficially owned as reported in column 5 includes 19,894 shares of restricted stock subject to service-based vesting and 86,505 shares subject to service-based vesting and the satisfaction of certain performance criteria. Francis B. Barron, as Attorney-in-Fact 2018-12-10