X0306 4 2015-12-14 false 0001168054 CIMAREX ENERGY CO XEC 0001196793 HELMERICH HANS C/O CIMAREX ENERGY CO. 1700 LINCOLN STREET, SUITE 3700 DENVER CO 80203 true false false false Common Stock 14166 D Common Stock 47655 I Trustee, 1993 Hans Helmerich Trust Common Stock 11450 I By Wife Common Stock 1062 I Co-Trustee of Family Trust Common Stock 7865 I Trustee of Family Trust Common Stock 48500 I Co-Trustee of The Helmerich Trust (fka Co-Trustee of The Helmerich Foundation) Common Stock 2015-12-14 4 S false 25000 102.1724 D 325000 I Peggy Helmerich QTIP Trust (fka Trustee of Estate of W.H. Helmerich III) Includes 3,349 shares of restricted stock subject to service-based vesting. Mr. Helmerich disclaims beneficial ownership of these shares. The price reported in Column 4 for December 14, 2015 sales is a weighted average price. These shares were sold in multiple transactions at prices ranging from $101.46 to $103.47, inclusive. The reporting person undertakes to provide to Cimarex Energy Co., any security holder of Cimarex Energy Co. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. Francis B. Barron, as Attorney-in-Fact 2015-12-15