Atlas Pipeline Partners, L.P. NYSE: APL

1. Atlas Pipeline Partners, L.P. NYSE: APL • OIPA • Monday, June 11, 2007

2. THE WORDS “BELIEVES, ANTICIPATES, EXPECTS” AND SIMILAR EXPRESSIONS ARE INTENDED TO IDENTIFY FORWARD LOOKING STATEMENTS. SUCH STATEMENTS ARE SUBJECT TO CERTAIN RISKS AND UNCERTAINTIES, WHICH COULD CAUSE ACTUAL RESULTS TO DIFFER MATERIALLY FROM THOSE PROJECTED IN THE FORWARD LOOKING STATEMENTS. THE RISKS AND UNCERTAINTIES ARE DISCUSSED IN OUR ANNUAL REPORT ON FORM 10-K, OUR QUARTERLY REPORT ON FORM 10-Q; PARTICULARLY IN THE SECTION TITLED RISK FACTORS. READERS ARE CAUTIONED NOT TO PLACE UNDUE RELIANCE ON THESE FORWARD LOOKING STATEMENTS, WHICH SPEAK ONLY AS OF THE DATE HEREOF. THE PARTNERSHIP UNDERTAKES NO OBLIGATIONS TO PUBLICLY RELEASE THE RESULTS OF ANY REVISIONS TO FORWARD LOOKING STATEMENTS, WHICH MAY BE MADE TO REFLECT EVENTS OR CIRCUMSTANCES AFTER THE DATE HEREOF OR TO REFLECT THE OCCURRENCE OF UNANTICIPATED EVENTS. Safe Harbor Statement

3. Overview of Atlas Pipeline Partners, L.P.

4. Atlas Pipeline Partners, L.P. (NYSE: APL) is a midstream energy services provider engaged in the transmission, gathering and processing of natural gas Through its Mid-Continent Operations, APL owns and operates: A FERC-regulated, 565-mile interstate pipeline system Three natural gas processing plants (totaling 350 MMcf/d) and one treating facility (200 MMcf/d) located in Oklahoma 1,900 miles of active natural gas gathering systems located in Oklahoma, Arkansas, northern Texas and the Texas panhandle 289 MMcf/d from Ozark Gas Transmission (1) 353 MMcf/d from the Velma and Elk City/Sweetwater systems (1) Through its Appalachian Operations, APL owns and operates 1,600 miles of active natural gas gathering systems located in eastern Ohio, western New York and western Pennsylvania 5,850 producing wells; connected 451 wells in 2005 and 711 wells in 2006 63.1 MMcf/d (1) Ominbus agreement with Atlas America provides significant source of volume growth 1.All volume numbers reflect average daily volumes for the quarter ended December 31, 2006 APL Business Summary Operational Overview

5. Appalachian Gathering System • Located in Appalachia Basin of eastern Ohio, western New York, and western Pennsylvania • Over 1,600 mi. of active gathering pipeline • Over 5,850 wells serviced • Elk City Gas Gathering • & Processing System • Located in Anadarko Basin of Oklahoma • 450 mi. of active gathering pipeline • Over 360 receipt points serviced • 130 MMcf/d processing facility • 200 MMcf/d treating facility • Connected to over 360 receipt points Prentiss TreatingFacility Elk City Plant Velma Plant • NOARK Pipeline System • Ozark Gas Transmission − 565-mile FERC-regulated pipeline running from Oklahoma to Missouri, 2 compressor stations • Ozark Gas Gathering − 370-mile non-FERC-regulated natural gas gathering system, 11 compressor stations • Increasing capacity from 322 to 450 MMcf/d by adding compression • Accesses prolific Arkoma Basin and developing Fayetteville Shale • Velma Gas Gathering • & Processing System • Located in Golden Trend area of OK • 1,080 mi. of active gathering pipeline • Approx. 640 receipt points serviced • 100 MMcf/d capacity processing facility • More then 150 producers under acreage dedication and long term agreements • Sweetwater Gas Gathering & Processing System • New cryogenic processing plant w/ 120Mmcf/d capacity • Became active late September 2006 • Associated gathering system also in place • Expanding gathering system and capacity to 180 MMcf/d • Proximity to Elk City provides flexibility Tx Ok Sweetwater Plant Geographic Focus

6. Successfully completed four acquisitions totaling over $585 million in the last three years Velma system acquired for $142 million in July 2004 Elk City system acquired for $196 million in April 2005 NOARK system acquired in two separate transactions for a total of $249 million; 75% interest acquired in October 2005; remaining 25% interest acquired in May 2006 Growth Initiatives Acquisition Growth Organic Growth • 120MMcf/d Sweetwater gas processing plant opened September 2006; total cost of $40MM • Currently operating at volumes over 90MMcf/d • Expanding gathering system and adding 60 MMcf/d of processing capacity at Sweetwater; expected completion by early 2008 • Throughput expansion on NOARK by increasing compression; targeted completion by early 2008 • Capacity to increase up to 450MMcf/d; total cost ~ $20-30 million • Continued Appalachian system growth driven by Atlas Energy Resources’ traditional drilling activity and additional potential growth from exploitation of deeper shale plays and other geological formations within their existing acreage position

7. NOARK Pipeline System Overview • High quality FERC-regulated transmission system • Adds stable, fee-based cash flows and reduces risk profile • Provides substantial upside without significant capital expenditure requirements • NOARK pipeline diversifies existing APL business and expands footprint • Expands Mid-Continent natural gas gathering and transportation position • Facilitates additional bolt-on opportunities • Unregulated gathering business • Separation of regulated and non-FERC-regulated assets provides growth opportunity • APL gathering expertise expected to enhance growth • Strategic location provides access to significant natural gas supply • Mid-Continent Region • Arkoma Basin • Fayetteville Shale – growing production area • Compression expansion project • Added compression will increase throughput capacity up to 450MMcfd

8. Gathering & Processing Overview Velma Highlights • 1,900 miles of pipelines in Oklahoma and Texas • 100 MMcf/d processing plant capacity • For the quarter ended ended 9/30/06, processed approximately 58.3 MMcf/d of natural gas and approximately 6,600 Bbls/d of NGLs • Geographically positioned to benefit from rapidly growing Barnett Shale and Woodford Shale plays • Revenue from purchases of natural gas at the wellhead and sales of processed gas and NGLs • Gas supply secured under long-term contracts • Throughput growth driven by system expansions and improved compression

9. Gathering & Processing Overview Elk City Highlights • Elk City system provides gathering, compression, treating and processing services in the Anadarko Basin • Stepped-up drilling activity in the region has increased system gas volumes over 100% since 2002, from 139 MMcf/d to over 284 MMcf/d currently • Supplied by over 300 gas receipt points • System can be enhanced through low-cost system extensions to areas of drilling activity • Location near active drilling area • Access to prolific Anadarko basin • Drilling rig count in Oklahoma increased over 95% since 2002 • Potential for additional well-connects

10. Appalachia Recent Developments • Atlas Energy Resources recently announced that during the fourth quarter of 2006 and first quarter of 2007 it plans to drill 3 wells to multiple pay zones, including the Marcellus Shale of Southwestern Pennsylvania • Atlas Energy Resources believes it holds over 160,000 acres of prospective Marcellus acreage in three counties • This shale play represents significant throughput potential for Atlas Pipeline Partners • Industry banter of vertical type-well EUR of “600 to 1,000 MMcfe” within our range of expectations • Atlas Energy Resources is planning six to ten additional wells in 2nd and 3rd quarters; potentially a 40+ vertical well development schedule in 4th quarter 2007 and 1st quarter 2008