X0306 4 2017-12-07 false 0001168054 CIMAREX ENERGY CO XEC 0001196778 BELL STEPHEN P 1700 LINCOLN STREET SUITE 3700 DENVER CO 80203 false true false false Ex VP Common Stock 2017-12-07 4 A false 35211 0 A 132298 D Common Stock 2017-12-10 4 J false 18951 0 A 18951 I By revocable trust Common Stock 2017-12-10 4 F false 16526 111.9 D 115772 D Common Stock 2017-12-10 4 J false 18951 0 D 96821 D Represents a performance award of restricted stock that is subject to three-year cliff vesting ending on 12/1/2020 and the satisfaction of certain performance criteria. Relates to performance award with a vesting date of 12/10/2017. Represents shares vested but withheld for taxes as permitted by the award agreement. Represents 12/10/2017 vested shares, which upon vesting were transferred to a trust. The amount of shares reported in column 5 as beneficially owned represent shares subject to service-based vesting and the satisfaction of certain performance criteria. Francis B. Barron, as Attorney-in-Fact 2017-12-11