Atlas Resource Partners, L.P. Announces Public Offering of 5.5M Common Units

Atlas Resource Partners, L.P.

announced today that it has commenced an underwritten public offering of 5,500,000 common units representing limited partner interests. Wells Fargo Securities, Citigroup, Deutsche Bank Securities, J.P. Morgan, Morgan Stanley and RBC Capital Markets are acting as joint book-running managers for this offering. The underwriters have been granted a 30-day option to purchase up to an additional 825,000 common units. ARP intends to use the net proceeds from this offering to fund its previously-announced acquisition of natural gas assets from GeoMet, Inc. and its subsidiaries. Prior to funding the pending acquisition, ARP may use some or all of the net proceeds for general partnership purposes, which may include repayment of outstanding borrowings under its revolving credit facility. The common units are being offered pursuant to an automatic shelf registration statement that ARP previously filed with the SEC. The offering is being made only by means of a prospectus supplement and accompanying prospectus. Copies of the prospectus and accompanying preliminary prospectus supplement relating to these securities may be obtained by contacting: