Exhibit 23(b)


                                   CONSENT OF
                  UNITED ENERGY DEVELOPMENT CONSULTANTS, INC.





             CONSENT OF UNITED ENERGY DEVELOPMENT CONSULTANTS, INC.
         INDEPENDENT PETROLEUM ENGINEERING & GEOLOGICAL CONSULTING FIRM

UEDC, as an independent petroleum engineering and geological consulting firm,
hereby consents to the use of:

        o      its Geologic Evaluation, dated May 6, 2003, for the Crawford
               and Mercer Prospect Areas, Pennsylvania;

        o      its Geologic Evaluation dated May 6, 2003, for the Fayette
               Prospect Area, Pennsylvania; and

        o      its Geologic Evaluation dated May 6, 2003, for the Armstrong
               Prospect Area, Pennsylvania

in the Registration Statement and any supplements thereto, including post-
effective amendments, for Atlas America Public #12-2003 Program, and to all
references to UEDC as having prepared such report and as an expert concerning
such report.



UEDC, Inc.



/s/ Robin Anthony
________________________________________
Robin Anthony   5/08/03
Geologist       Pittsburgh, Pennsylvania