INTERSTATE POWER AND LIGHT COMPANY (an Iowa corporation) 3.60% SENIOR DEBENTURES DUE 2029 UNDERWRITING AGREEMENT Dated: March 25, 2019Interstate Power and Light Company • April 1st, 2019 • Interstate Power & Light Co • Electric & other services combined • New York
Interstate Power and Light Company, an Iowa corporation (the “Company”), confirms its agreement (the “Agreement”) with Barclays Capital Inc. (“Barclays”), J.P. Morgan Securities LLC (“J.P. Morgan”) and Mizuho Securities USA LLC (“Mizuho”), and each of the other underwriters named on Schedule A hereto (collectively, the “Underwriters”, which term shall also include any underwriter substituted as hereinafter provided in Section 10 hereof), for whom Barclays, J.P. Morgan and Mizuho are acting as representatives (in such capacity, the “Representatives”), with respect to the issue and sale by the Company and the purchase by the Underwriters, acting severally and not jointly, of the respective principal amounts set forth on Schedule A of $300,000,000 aggregate principal amount of the Company’s 3.60% Senior Debentures due 2029 (the “Securities”). The Securities will be issued pursuant to an indenture dated as of August 20, 2003 (the “Base Indenture”) between the Company and The Bank of New Yo
INTERSTATE POWER AND LIGHT COMPANY (an Iowa corporation) 3.100% SENIOR DEBENTURES DUE 2051 UNDERWRITING AGREEMENT Dated: November 16, 2021Interstate Power and Light Company • November 19th, 2021 • Interstate Power & Light Co • Electric & other services combined • New York
Interstate Power and Light Company, an Iowa corporation (the “Company”), confirms its agreement with Goldman Sachs & Co. LLC, J.P. Morgan Securities LLC, MUFG Securities Americas Inc. and U.S. Bancorp Investments, Inc., and each of the other underwriters named in Schedule A hereto (collectively, the “Underwriters,” which term shall also include any underwriter substituted as hereinafter provided in Section 10 hereof), for whom Goldman Sachs & Co. LLC, J.P. Morgan Securities LLC, MUFG Securities Americas Inc. and U.S. Bancorp Investments, Inc. are acting as representatives (in such capacity, the “Representatives”), with respect to the issue and sale by the Company and the purchase by the Underwriters, acting severally and not jointly, of the respective principal amounts set forth on Schedule A of $300,000,000 aggregate principal amount of the Company’s 3.100% Senior Debentures due 2051 (the “Securities”). The Securities will be issued pursuant to an indenture dated as of August 20, 2003
INTERSTATE POWER AND LIGHT COMPANY (an Iowa corporation) 5.50% SENIOR DEBENTURES DUE 2025 PURCHASE AGREEMENT Dated: July 18, 2005Interstate Power and Light Company • July 19th, 2005 • Interstate Power & Light Co • Electric & other services combined • New York
Interstate Power and Light Company, an Iowa corporation (the “Company”), confirms its agreement with Barclays Capital Inc. (“Barclays Capital”), Banc of America Securities LLC (“Banc of America”) and each of the other underwriters named in Schedule A hereto (collectively, the “Underwriters”, which term shall also include any underwriter substituted as hereinafter provided in Section 10 hereof), for whom Barclays Capital and Banc of America are acting as representatives (in such capacity, the “Representatives”), with respect to the issue and sale by the Company and the purchase by the Underwriters, acting severally and not jointly, of the respective principal amounts set forth on Schedule A of $50,000,000 aggregate principal amount of the Company’s 5.50% Senior Debentures due 2025 (the “Securities”). The Securities will be issued pursuant to an indenture dated as of August 20, 2003 (the “Indenture”) between the Company and J.P. Morgan Trust Company, National Association, as successor in
