X0201 4 2003-12-01 0 0001168054 CIMAREX ENERGY CO XEC 0001196213 MERELLI F H C/O CIMAREX ENERGY CO 707 17TH ST STE 3300 DENVER CO 80202 1 1 0 0 CEO and President Common Stock 2003-12-01 4 J 0 211200 D 70100 D Common Stock 2003-12-01 4 A 0 211200 A 281300 D Effective December 1, 2003, reporting person exchanged 211,200 shares of restricted stock for 211,200 stock units, which may only be settled in shares of common stock on a one-for-one basis. The units vest in five equal annual installments beginning on December 6, 2003 and become payable in shares of common stock on December 6, 2010. These dates are identical to the dates applicable to the restricted stock that was exchanged. Does not include 152,300 shares indirectly owned and held in an IRA or 10,832 shares held in Mr. Merelli's 401(k) account as of 11/28/03. Paul Korus, attorney-in-fact for F.H. Merelli 2003-12-01