ATLAS AMERICA PUBLIC #12-2003 Limited Partnership

5.02

Certification of termination of registration of a class of securities (Section 12(g))

Entry into a Material Definitive Agreement

General form for quarterly reports under Section 13 or 15(d)

1.03,5.03,9.01

General form for quarterly reports under Section 13 or 15(d)

Notification of late filing of Form 10-Q

Annual report pursuant to Section 13 or 15(d)

Notification of late filing of Form 10-K

General form for quarterly reports under Section 13 or 15(d)

Notification of late filing of Form 10-Q

Annual report pursuant to Section 13 or 15(d) (amendment)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Annual report pursuant to Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Annual report pursuant to Section 13 or 15(d) (amendment)

General form for quarterly reports under Section 13 or 15(d)

Annual report pursuant to Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d) (amendment)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

No description available

Post-effective amendment to a registration statement

Prospectus Supplement for Primary Offering

Amended Initial Registration Statement

Amended Initial Registration Statement

Registration (IPO) statement under Securities Act of 1933

LUTZ SHERWOOD S

BLACK KAREN A

KOTEK FREDDIE M

MCGURK NANCY J

CAROLAS FRANK P

HOLLANDER JACK L

BRECKO MICHAEL W

LAUGHLIN DONALD R

SIMMONS JEFFREY C

STAINES MICHAEL L

ATLAS RESOURCES INC

BLEICHMAR MARCI F

HARTZELL MICHAEL G