On November 1, 2017, C. Kristopher Hagedorn informed CONSOL Energy Inc. of his decision to resign as Vice President and Controller and principal accounting officer of the company to pursue other opportunities. It is expected that Mr. Hagedorn will remain in his current position until November 29, 2017. In connection with Mr. Hagedorn’s resignation, the company has appointed Jason Mumford on November 2, 2017 to serve as its principal accounting officer on an interim basis, effective immediately upon the termination of Mr. Hagedorn’s employment on November 29, 2017. Mr. Mumford has served as the company’s Assistant Controller since August 3, 2015, and previously served as the company’s Senior Manager of Controllers (from April 4, 2014 through August 2, 2015), Manager of Revenue Gas (from October 31, 2011 through April 13, 2014), and Manager of Financial Accounting (from May 17, 2010 through October 30, 2011).