Concho Resources Inc. announced that Darin G. Holderness, the company's Senior Vice President, Chief Financial Officer and Treasurer, will retire from the Company in January 2017. Jack F. Harper, who is currently Executive Vice President of the company, has assumed the additional roles of Chief Financial Officer and Treasurer, effective immediately. The company further announced that Matthew G. Hyde, Senior Vice President of Exploration, will retire from the Company in January 2017.