Atlas Resource Partners, L.P. (“Atlas”) (NYSE: ARP) announces today that Atlas Resource Partners will be presenting at the IPAA Oil & Gas Investment Symposium on Tuesday, October 1 st in San Francisco, CA. Edward E. Cohen, Chairman & Chief Executive Officer will be presenting for Atlas Resource Partners at 12:45pm ET (9:45am PT). Investors and the general public are invited to listen to the live webcast of the presentation at www.atlasresourcepartners.com under the Event Calendar page of the Investor Relations section of the site. Atlas Resource Partners, L.P. (NYSE: ARP) is an exploration & production master limited partnership which owns an interest in over 12,000 producing natural gas and oil wells, located primarily in Appalachia, the Barnett Shale (TX), the Raton Basin (NM) and Black Warrior Basin (AL). ARP is also the largest sponsor of natural gas and oil investment partnerships in the U.S. For more information, please visit our website at www.atlasresourcepartners.com, or contact Investor Relations at InvestorRelations@atlasenergy.com. Atlas Energy, L.P. (NYSE: ATLS) is a master limited partnership which owns all of the general partner Class A units and incentive distribution rights and an approximate 37% limited partner interest in its upstream oil & gas subsidiary, Atlas Resource Partners, L.P. Additionally, Atlas Energy owns and operates the general partner of its midstream oil & gas subsidiary, Atlas Pipeline Partners, L.P., through all of the general partner interest, all the incentive distribution rights and an approximate 6% limited partner interest. For more information, please visit our website at www.atlasenergy.com, or contact Investor Relations at InvestorRelations@atlasenergy.com.