Atlas Pipeline Partners, L.P. Declares Distribution of $.75 Per Common Unit for the First Quarter of 2005.

PHILADELPHIA -- Atlas Pipeline Partners L.P. (NYSE:APL) ("APL") announces that the Managing Board of its general partner has declared a quarterly distribution for the quarter ending March 31, 2005 in the amount of $.75 per common unit. The distribution will be paid on May 13, 2005 to unit holders of record at the close of business on March 31, 2005. This represents a 4% increase over quarterly distribution for the period ended December 31, 2004 and a 19% increase over the quarterly distribution for the quarter ended March 31, 2004.

Michael Staines, President and Chief Operating Officer of APL's general partner stated: "We continue to build our throughput volumes as we add new wells to our Appalachian and mid-continent systems. In Appalachia, we added 71 new wells during the fourth quarter of 2004 to bring the year's total to 335 new wells. With growing demand in Appalachia, we have continued to upgrade our compression and mainline capability with new capacity to come on line in May 2005. In the mid-continent, through our July 2004 acquisition of Spectrum Field Services, we are now experiencing anticipated growth through the addition of newly drilled wells and wells previously served by our competitors. We believe we provide the most cost effective service to producers in our mid-continent operating area and can look forward to continued volume growth. Our mid-continent operations currently have 66 million cubic feet of gas per day at the Velma plant inlet - an increase of 22% since the date of our acquisition."

Atlas Pipeline Partners, L.P. is engaged in the gas gathering and processing segment of the mid-stream natural gas industry. In Appalachia, it owns and operates more than 1,400 miles of natural gas gathering pipelines in western Pennsylvania, western New York and eastern Ohio to which more than 4,250 wells are currently connected. APL currently gathers approximately 53 million cubic feet ("mmcf") of gas per day from these wells. In the mid-continent region of southern Oklahoma and northern Texas, APL owns and operates approximately 1,900 miles of gas gathering pipeline. APL currently gathers approximately 66 mmcf of gas per day to its gas processing facility in Velma, Oklahoma where natural gas liquids (NGL) are removed. APL then sells the resulting gas and NGL and remits a portion of those proceeds to the producer. In both Appalachia and the mid-continent, the fees paid to APL are either a percentage of the gross selling price of the gas or NGL or a fixed fee per mcf transported. Atlas America, Inc. (Nasdaq:ATLS) is the owner of APL's general partner, which owns 1,641,026 limited partnership units of APL. For more information, please visit our website at www.atlaspipelinepartners.com, or contact [e-mail]

Statements made in this release may include forward-looking statements, which involve substantial risks and uncertainties. APL's actual results, performance or achievements could differ materially from those expressed or implied in this release as a result of certain factors, including competition within the energy industry, climactic conditions and the price of gas in the Appalachian and mid-continent areas, actual versus projected volumetric production from wells connected to APL's gas-gathering pipeline system, and the cost of supplies and services in the energy industry and other factors disclosed under "Risk Factors" in APL's most recent Annual Report on Form 10-K.