Atlas Resources Public #18-2009 (C) L.P.

FY: Dec 31 2017

Q: Sep 30 2017

Q: Sep 30 2017

Q: Jun 30 2017

Q: Mar 31 2017

FY: Dec 31 2016

FY: Dec 31 2016

Q: Sep 30 2016

Q: Sep 30 2016

Q: Jun 30 2016

Q: Mar 31 2016

Q: Mar 31 2016

FY: Dec 31 2015

FY: Dec 31 2015

Q: Sep 30 2015

Q: Sep 30 2015

FY: Dec 31 2014

Q: Jun 30 2015

Q: Mar 31 2015

FY: Dec 31 2014

1.01,2.01,9.01

5.02

5.02

2.01,9.01

1.01,5.02

5.02

1.03,5.03,9.01

No description available

Notice of Effectiveness

Post-effective amendment to a registration statement

Post-effective amendment to a registration statement

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Notice of Effectiveness

Post-effective amendment to a registration statement

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Notice of Effectiveness

Post-effective amendment to a registration statement

Notice of Effectiveness

KOTEK FREDDIE M

CAROLAS FRANK P

SIMMONS JEFFREY C

MCGRATH SEAN P

ATLAS RESOURCES LLC

LAUGHLIN DONALD R

HOLLANDER JACK L

BLACK KAREN A

HARTZELL MICHAEL G

BLEICHMAR MARCI F

Jones Matthew

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Post-effective amendment filed solely to add exhibits

Correspondence with the SEC

Correspondence with the SEC