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

from S-1 146 pages Credit Agreement Dated as of June 29, 2007 Among Atlas Energy Resources, LLC, as Parent Guarantor, Atlas Energy Operating Company, LLC, as Borrower, Jpmorgan Chase Bank, N.A., as Administrative Agent, Wachovia Bank, National Association, as Syndication Agent, and Bank of America, N.A., Bnp Paribas, Royal Bank of Canada, and Ubs Loan Finance LLC, as Co-Documentation Agents, and the Lenders Party Hereto Sole Lead Arranger and Sole Bookrunner J.P. Morgan Securities Inc

from S-1 154 pages Revolving Credit Agreement Dated as of December 18, 2006 Among Atlas Energy Operating Company, LLC, as Borrower; Aer Pipeline Construction, Inc., Aic, LLC, Atlas America, LLC, Atlas Energy Ohio, LLC, Atlas Energy Resources, LLC, Atlas Noble, LLC, Atlas Resources, LLC, Rei-Ny, LLC, Resource Energy, LLC, Resource Well Services, LLC, and Viking Resources LLC as Guarantors; Wachovia Bank, National Association as Administrative Agent and Issuing Bank; Bank of America, N.A. and Compass Bank as Co-Syndication Agents; Bank of Oklahoma, N.A., U.S. Bank, National Association and Bnp Paribas as Co-Documentation Agents and the Lenders Signatory Hereto $250,000,000 Senior Secured Revolving Credit Facility Wachovia Capital Markets, LLC as Lead Arranger