Opened a cash tender offer to purchase its 5.875% senior notes due 2022. As of April 3, $750 million of the 2022 notes were outstanding. Tender offer will expire on April 7 unless extended. The settlement date is scheduled for April 10. Tender offer is contingent upon Cimarex's completion of proposed debt financing transaction, and other matters. D.F. King & Co. Inc. is the information agent. Dealer managers are J.P. Morgan Securities LLC and Wells Fargo Securities LLC.