Pursuant to Rule 424(b)(3)
                                           Registration Statement No. 333-127355


STICKER DATED JULY 31, 2006 TO PROSPECTUS

The prospectus for Atlas America Public #15-2005 Program consists of this
sticker, the sticker dated May 11, 2006, the prospectus which is dated April 17,
2006, Supplement No. 1 dated May 11, 2006, and Supplement No. 2 dated July 31,
2006, to the prospectus.

The Supplement No. 2 describes the status of the offering and provides
information concerning the recent filing of an initial public offering for Atlas
Energy Resources, LLC.

THIS STICKER, THE STICKER DATED MAY 11, 2006, SUPPLEMENT NO. 1 AND SUPPLEMENT
NO. 2 FORM A PART OF, AND MUST BE ACCOMPANIED OR PRECEDED BY, THE PROSPECTUS.




                      ATLAS AMERICA PUBLIC #15-2005 PROGRAM

                                Supplement No. 2
                                     to the
                         Prospectus dated April 17, 2006

                                  July 31, 2006

SUMMARY
We, Atlas America Public #15-2006(B) L.P., are providing you with this
Supplement No. 2 to update the prospectus. This supplement forms a part of, and
must be accompanied or preceded by, the prospectus. The purposes of this
supplement are to describe the current status of the offering and provide
information concerning the recent filing of an initial public offering for Atlas
Energy Resources, LLC.

You should carefully review the prospectus and this Supplement No. 2 before
subscribing for units.

STATUS OF THE OFFERING
As of the date of this Supplement No. 2 we have received offering proceeds of
approximately $144 million.

MANAGEMENT
Atlas America, our managing general partner's indirect parent company, announced
on July 28, 2006 that Atlas Energy Resources, LLC ("Atlas Energy"), which will
own and operate substantially all of the natural gas and oil assets and the
investment partnership management business of Atlas America, including our
managing general partner, Atlas Resources, LLC, has filed a registration
statement on Form S-1 with the Securities and Exchange Commission for an initial
public offering of 5,750,000 common units, representing an approximate 16.9%
membership interest. The underwriters are expected to be granted a 30-day option
to purchase up to 862,500 additional common units. Upon completion of the Atlas
Energy offering, Atlas America expects to own approximately 83% of the
membership interests in Atlas Energy. Additionally, Atlas America will own Atlas
Energy Management, Inc., which will own all of the management incentive
interests in Atlas Energy. Atlas Energy intends to apply to have its common
units listed on the New York Stock Exchange. See "- Pro Forma Organizational
Diagram (Subject to Change)" in the prospectus. This Supplement No. 2 does not
constitute an offer to sell or a solicitation of an offer to buy any securities
in Atlas Energy.



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