Cimarex Energy Co. announced the retirement of Michael J. Sullivan from its Board of Directors and the appointment of Kathleen A. Hogenson as an independent director of Cimarex effective September 30, 2019. Ms. Hogenson is President and Chief Executive Officer at Zone Oil & Gas, LLC, which she co-founded in 2007. Previously, Ms. Hogenson served as President and CEO of Santos USA Corp. and Vice President of Technology at Unocal Corporation for a combined 10 years. Ms. Hogenson was employed at Maxus Energy prior to Unocal serving in a variety of roles. She currently serves on the board of directors of First Quantum Minerals Ltd. and Verisk Analytics Inc.