Atlas Pipeline Partners, L.P. to Release Financial Results for First Quarter 2011 and Host Conference Call

Atlas Pipeline Partners, L.P. (NYSE: APL) (“Atlas Pipeline” or the “Partnership”) announced today that it will release its results for the first quarter of 2011 on Monday, May 2, 2011 after market hours, and invites investors and other interested parties to listen to the live webcast of its quarterly conference call on Tuesday, May 3, 2011, at 10:00 a.m. Eastern Time.

This call is being webcast live and can be accessed by investors and other interested parties from the Investor Relations section of Atlas Pipeline's website at www.atlaspipeline.com. For those unavailable to listen to the live broadcast, the replay of the webcast will be available following the live call on the Atlas Pipeline website and telephonically beginning at noon ET on Tuesday, May 3, 2011 by dialing 888-286-8010, passcode: 69215822.

Atlas Pipeline Partners, L.P. (NYSE: APL) is active in the gathering and processing segments of the midstream natural gas industry. In the Mid-Continent region of Oklahoma, southern Kansas, and northern and western Texas, APL owns and operates five active gas processing plants as well as approximately 8,600 miles of active intrastate gas gathering pipeline. For more information, visit the Partnership's website at www.atlaspipeline.com or contact [e-mail].

Atlas Energy, L.P. (NYSE: AHD) is a master limited partnership which owns and operates the general partner of Atlas Pipeline Partners, L.P. (NYSE: APL), through which it owns a 2% general partner interest, all the incentive distribution rights and approximately 5.75 million common limited partner units of APL. Additionally, AHD owns an interest in over 8,500 producing natural gas and oil wells, representing over 185 Bcfe of net proved developed reserves. For more information, please visit the Partnership’s website at www.atlasenergy.com, or contact Investor Relations at [e-mail].