On August 30, 2015, the Board of Directors of Atlas Energy Group, LLC, which is the general partner of Atlas Resource Partners, L.P. (“ARP”), appointed Edward E. Cohen as Executive Vice Chairman; Executive Chairman of ARP; Jonathan Z. Cohen – Executive Vice Chairman of ARP; Daniel C. Herz as Chief Executive Officer of ARP; Mark D. Schumacher as President of ARP; and Jeffrey M. Slotterback as Chief Financial Officer and Chief Accounting Officer of ARP. Such appointments are effective as of August 30, 2015. Edward E. Cohen has been the Chief Executive Officer of the Company since February 2015 and President from February 2015 to April 2015, and before that was Chairman and Chief Executive Officer since February 2012.

Jonathan Z. Cohen, 45, has served as the Executive Chairman of the Board of the Company since February 2015, and before that was Vice Chairman since February 2012. Daniel C. Herz has served as President of the Company since April 2015. Mr. Herz served as Senior Vice President of Corporate Development and Strategy for the Company and its predecessors since 2007, and was Vice President of Corporate Development from 2004 through 2007.

Mark D. Schumacher has served as Senior Vice President of the Company since April 2015 and had served as Chief Operating Officer from October 2013 to April 2015. He had served as Executive Vice President of Atlas Energy, L.P. from July 2012 to October 2013.