2009-05-05 16:46:03 -

Atlas Pipeline Partners, L.P. (NYSE:APL) and Atlas Pipeline Holdings, L.P. (NYSE:AHD), who owns the general partner interest, 5.8 million common units and 15,000 preferred Class B units of Atlas Pipeline Partners, announced today that they will release their first quarter 2009 results before market hours on Monday, May 11, 2009, and invites investors and other interested parties to listen to

the live webcast of Atlas Pipeline Partners, L.P.'s quarterly conference call on Monday, May 11, 2009, at 9:00 a.m. Eastern Time.

This call is being webcast live and can be accessed by investors and other interested parties in the Investor Relations section of Atlas Pipeline's website at www.atlaspipelinepartners.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 Partners website and telephonically beginning at 11:00 a.m. on May 11, 2009 by dialing 888-286-8010, pass code 88421178.


Atlas Pipeline Partners, L.P. is active in the transmission, gathering and processing segments of the midstream natural gas industry.

In the Mid-Continent region of Oklahoma, southern Kansas, northern and western Texas and the Texas panhandle, APL owns and operates eight active gas processing plants and a treating facility, as well as approximately 8,750 miles of active intrastate gas gathering pipeline.
In Appalachia, it owns and operates approximately 1,800 miles of natural gas gathering pipelines in western Pennsylvania, western New York, eastern Ohio and northeastern Tennessee. For more information, visit the Partnership's website at www.atlaspipelinepartners.com : or contact InvestorRelations@atlaspipelinepartners.com : mailto:InvestorRelations@atlaspipelinepartners.com .



Atlas Pipeline Holdings, L.P. is a limited partnership which owns and operates the general partner of Atlas Pipeline Partners, L.P., through which it owns a 2% general partner interest, all the incentive distribution rights, approximately 5.8 million common units and 15,000 preferred Class B units of Atlas Pipeline Partners.



Atlas Pipeline Partners, L.P.Brian BegleyInvestor

Relations215-546-5005Facsimile: 215-553-8455