Bill Barrett Corporation UNDERWRITING AGREEMENT dated September 20, 2011 Merrill Lynch, Pierce, Fenner & Smith Incorporated J.P. Morgan Securities LLC Deutsche Bank Securities Inc. Wells Fargo Securities, LLCUnderwriting Agreement • September 23rd, 2011 • Bill Barrett Corp • Crude petroleum & natural gas • New York
Contract Type FiledSeptember 23rd, 2011 Company Industry JurisdictionIntroductory. Bill Barrett Corporation, a Delaware corporation (the “Company”), proposes to issue and sell to the several underwriters named in Schedule A hereto (the “Underwriters”), for whom you (the “Representatives”) are acting as representatives, $400,000,000 principal amount of its 75/8% Senior Notes due 2019 (the “Notes”). The Notes will be guaranteed (collectively, the “Guarantees”) by each of the subsidiary guarantors named in Schedule B hereto (the “Notes Guarantors”). The Notes and the Guarantees are collectively referred to herein as the “Securities.” The Securities are to be issued under an indenture, dated as of July 8, 2009, as supplemented by the Third Supplemental Indenture, to be dated as of the Closing Date (as defined in Section 3 hereof) (as supplemented, the “Indenture”) among the Company, the Notes Guarantors and Deutsche Bank Trust Company Americas, as trustee (the “Trustee”).