Investor Update Call

DENVER--(BUSINESS WIRE)--Carbon Natural Gas Company (OTCBB: CRBO) announced today that a conference call is scheduled for Thursday September 27, 2012, at 4:00 PM EDT to discuss current activities of the company. Investors and other interested parties may access the conference call by dialing toll free 800.430.0714, access code 4077040#.

About Carbon Natural Gas Company

Carbon is an independent natural gas and oil company engaged in the acquisition, exploration, development and production of natural gas and oil properties in the Appalachian and the Illinois Basin of the United States. We focus on horizontal oil development, shale gas development, tight gas sands and coalbed methane. Our corporate headquarters are in Denver, Colorado.