Atlas Pipeline Partners, L.P. Announces Velma Expansion Online and Purchases of Gathering Systems

 Atlas Pipeline Partners, L.P. Announces Velma Expansion Online and Purchases
                             of Gathering Systems

-- 60 mmcfd Velma expansion online and operating at 50% of capacity

-- 200 mmcfd WestOK expansion remains on schedule and expected to be online
next month

-- Completed purchase of a gathering system in Kansas as bolt-on to WestOK
asset in Mississippi Lime area

-- Announced purchase of Mansfield gathering system in Barnett Shale which
supports ARP production

-- Providing an update of risk management program; currently 76% margin
protected for rest of 2012, 73% for 2013

PR Newswire

PHILADELPHIA, June 22, 2012

PHILADELPHIA, June 22, 2012 /PRNewswire/ -- Atlas Pipeline Partners, L.P.
(NYSE: APL) ("APL", "Atlas Pipeline", or the "Partnership") announced today
that the Partnership has brought online the expansion at Velma, a new,
state-of-the-art 60 mmcfd cryogenic facility that increases the total
processing capacity to 160 mmcfd.   This expansion supports the Partnership's
long-term, fee-based agreement with XTO Energy Inc. ("XTO"), a subsidiary of
ExxonMobil, to provide natural gas gathering and processing services for up to
an incremental 60 million cubic feet per day (mmcfd) from the Woodford Shale. 
Due to increased activity in the rich gas areas where the Velma system is
located, the expansion is operating at 50% of capacity, well ahead of
previously announced expectations.  With additional compression work expected
next week, the new plant could be expected to reach 75% of capacity shortly
thereafter.  The Partnership will continue to evaluate additional
opportunities in Velma's areas of operation and work with its producer
customers to continue to develop the area. 

On the WestOK system in northern Oklahoma and southern Kansas, APL expects the
200 mmcfd expansion to be online next month.  The drilling activity in the
Mississippi Lime has continued to increase behind the system and volumes
continue to grow in excess of current processing capacity.  Once this
expansion is completed, the WestOk system will have total processing capacity
of 458 mmcfd.  The Partnership also recently completed the purchase of
gathering systems in Barber and Harper counties, Kansas which include
approximately 60 miles of gathering pipelines and associated rights-of-way. 
These gathering systems are already connected to the WestOk system and will
allow the Partnership to further expand into these areas of Kansas.  The
WestOk system now includes approximately 5,100 miles of active gathering pipe
and is currently moving approximately 340 mmcfd of gas.  The Partnership will
continue to look for opportunities to expand its leading presence in the
Mississippian Lime area of Oklahoma and Kansas.

Atlas Pipeline is also announcing the purchase of the Mansfield gathering
system in the Barnett Shale play in Tarrant County, Texas.  The system
consists of 19 miles of gathering pipeline that is used to facilitate
gathering some of the newly acquired production for APL's affiliate, Atlas
Resources Partners, L.P. (NYSE: ARP).  The system is currently moving
approximately 26 mmcfd of production and is currently contracted under a
fee-based arrangement to gather gas produced by the Partnership's affiliate,
ARP.  The Partnership is pleased to be entering a new geographic area and to
provide gathering services to support production by Atlas Resource Partners,
which has the ability to increase production in the area given their strong
balance sheet and financial positioning.

The Partnership is also providing an update of its risk management program
since the end of the previous quarter, which includes protection out into
2014.  It is important to note that APL has approximately 76% of expected
margin hedged (excluding ethane) for the remainder of 2012 and approximately
73% of expected margin hedged for 2013 (excluding ethane).  The Partnership
will continue to add to its portfolio to protect its cash flows and maintain
its strong balance sheet.  Regarding the Partnership's ethane margin exposure,
it is relevant to note that ethane encompasses a small percentage of NGL
margin relative to the volume of each NGL gallon that ethane represents.  In
addition, APL has the ability, as a natural hedge, to reject ethane back into
the natural gas residue stream at its' processing facilities.  

Management continues to forecast Adjusted EBITDA for 2012 between $200 million
and $225 million. The Partnership is adjusting growth capital expenditures,
including previously announced major capital projects, the acquisitions noted
above, and the Partnership's typical well connection and infrastructure
programs, which are now forecasted to total approximately $320-350 million for
2012.  These forecasted amounts are based on various assumptions, including,
among others, the Partnership's expected cost and timing for completion of its
announced capital expenditure program, timing of incremental volumes on its
gathering and processing systems, known contract structures, scheduled
maintenance of facilities including those of third-parties that impact the
Partnership's operations, estimated interest rates, and budgeted operating and
general administrative costs.  Management does not forecast certain items,
including GAAP revenues, depreciation, amortization, and non-cash changes in
derivatives, and therefore is unable to provide forecasted Net Income, a
comparable GAAP measure, for the periods presented.  The reconciling items
between these non-GAAP measures and Net Income are expected to be similar to
those for the most recently completed quarterly period and are not expected to
be significant to the Partnership's cash flows.

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 seven active gas processing plants as well as
approximately 9,000 miles of active intrastate gas gathering pipeline. APL
also has a 20% interest in the West Texas LPG Pipeline Limited Partnership,
which is operated by Chevron Corporation. For more information, visit the
Partnership's website at www.atlaspipeline.com or contact
IR@atlaspipeline.com.

Atlas Resource Partners, L.P. (NYSE: ARP) is an exploration & production
master limited partnership which owns an interest in over 8,600 producing
natural gas and oil wells, representing approximately 450 Bcfe of net proved
reserves, primarily in Appalachia and the Barnett Shale in Texas.  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 interest, all of the incentive distribution rights, and
approximately 64% of the limited partner interests 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 11% limited partner interest.
For more information, please visit our website at www.atlasenergy.com, or
contact Investor Relations at InvestorRelations@atlasenergy.com.

Certain matters discussed within this press release are forward-looking
statements. Although Atlas Pipeline Partners, L.P. believes the expectations
reflected in such forward-looking statements are based on reasonable
assumptions, it can give no assurance that its expectations will be attained.
Atlas Pipeline does not undertake any duty to update any statements contained
herein (including any forward-looking statements), except as required by law.
Factors that could cause actual results to differ materially from expectations
include general industry considerations, regulatory changes, changes in
commodity process and local or national economic conditions and other risks
detailed from time to time in Atlas Pipeline's reports filed with the SEC,
including quarterly reports on Form 10-Q, reports on Form 8-K and annual
reports on Form 10-K.

Contact: Matthew Skelly
         Vice President
         Investor Relations
         1845 Walnut Street
         Philadelphia, PA 19103
         (877) 950-7473
         (215) 561-5692 (facsimile)

SOURCE Atlas Pipeline Partners, L.P.